Posts

5 hrs ago


30-9.27, SD 2.59-0.91). Barriers to implementation identified by rheumatologists included time, appointment availability and perceived patient reluctance to escalate medications. Usability experiences with the KT-tool were tracked and clinicians reported it was easy to use (100%), resulted in a discussion of RA-T2T (73%) and a target being set for 63% of consults. Patients reported they read (92%) and understood (87%) the information in the KT-tool, and that a target was set in 62% of interactions.

RA-T2T uptake in clinical practice may be improved through understanding local clinician and patient barriers and an implementation strategy utilizing a patient-driven KT-tool.
RA-T2T uptake in clinical practice may be improved through understanding local clinician and patient barriers and an implementation strategy utilizing a patient-driven KT-tool.The recovery of blood supply after a period of myocardial ischaemia does not restore the heart function and instead results in a serious dysfunction called myocardial ischaemia-reperfusion injury (IRI), which involves several complex pathophysiological processes. Mitochondria have a wide range of functions in maintaining the cellular energy supply, cell signalling and programmed cell death. When mitochondrial function is insufficient or disordered, it may have adverse effects on myocardial ischaemia-reperfusion and therefore mitochondrial dysfunction caused by oxidative stress a core molecular mechanism of IRI. Peroxisome proliferator-activated receptor gamma co-activator 1α (PGC-1α) is an important antioxidant molecule found in mitochondria. However, its role in IRI has not yet been systematically summarized. https://www.selleckchem.com/products/SB-203580.html In this review, we speculate the role of PGC-1α as a key regulator of mitonuclear communication, which may interacts with nuclear factor, erythroid 2 like -1 and -2 (NRF-1/2) to inhibit mitochondrial oxidative stress, promote the clearance of damaged mitochondria, enhance mitochondrial biogenesis, and reduce the burden of IRI.Sustained androgen receptor (AR) signaling and apoptosis evasion are among the main hurdles of castration-resistant prostate cancer (CRPC) treatment. We designed and synthesized isothiocyanate (ITC)-containing hybrid AR antagonist (ITC-ARi) and rationally combined ITC-ARi with GSH synthesis inhibitor buthionine sulfoximine (BSO) to efficiently downregulate AR/AR splice variant and induce ferroptosis in CRPC cells. The representative ITC-ARi 13 is an AR ligand that contains an N-acetyl cysteine-masked ITC moiety and gradually releases parental unconjugated ITC 12b in aqueous solution. The in vitro anti-PCa activities of 13, such as growth inhibition and AR downregulation, are significantly enhanced when combined with BSO. The drug combination caused notable lipid peroxidation and the cell viability was effectively rescued by iron chelator, antioxidants or the inhibitor of heme oxygenase-1, supporting the induction of ferroptosis. 13 and BSO cooperatively downregulate AR and induce ferroptosis likely through increasing the accessibility of 13/12b to cellular targets, escalating free intracellular ferrous iron and attenuating GSH-centered cellular defense and adaptation. Further studies on the combination of ITC-ARi and GSH synthesis inhibitor could result in a new modality against CRPC.
The number of cancer survivors has increased rapidly, and there is a higher risk of developing a second cancer. Whether a prior malignancy could affect survival outcomes is unknown. We aimed to investigate the clinical characteristics and prognostic outcomes of prior malignancies in patients with gastric cancer.

Patient data were extracted from the Surveillance, Epidemiology, and End Results (SEER) database. We used the Kaplan-Meier method, competing risk models, and Cox regression models to evaluate the impact of prior malignancy on survival outcomes.

Among 71,809 patients with primary gastric cancer, 6667 (9.3%) patients had a pre-existing cancer. Prostate (31.86%), breast (14.34%), and colon and rectum (10.32%) cancer were the most common types. A significant difference was observed in the overall survival rates between patients with and without prior cancer (log-rank=139.73, p<0.001). In the subgroup analysis, patients with prostate, uterine corpus, lung and bronchus, colon and rectum, esophagus, urinary bladder, leukemia, brain and other nervous system, oral cavity and pharynx, and breast cancer faced inferior survival than those without prior cancer.

A history of prior cancer was associated with worse overall survival in patients with gastric cancer, and the effects varied by different initial cancer types. The exclusion and inclusion of patients who had previous malignancies should be reconsidered according to the specific malignancy types.
A history of prior cancer was associated with worse overall survival in patients with gastric cancer, and the effects varied by different initial cancer types. The exclusion and inclusion of patients who had previous malignancies should be reconsidered according to the specific malignancy types.
To analyze perioperative complications, resource consumption, and inpatient mortality of patients who receive total joint arthroplasty (TJA) with a concomitant diagnosis of a primary hypercoagulable state (PHS). The following questions were posed in the present paper. First, do patients undergoing TJA with PHS have increased risk of deep venous thrombosis (DVT), pulmonary embolism (PE), and periprosthetic joint infection (PJI)? Second, what other in-hospital complications are more likely among PHS patients undergoing TJA? Third, do TJA patients with PHS usually consume greater in-hospital resources? Fourth, do PHS patients suffer higher mortality rates compared to non-PHS patients? Finally, have PHS patients received proper anticoagulant management in past arthroplasties?

The National Inpatient Sample (NIS) database for the years between 2003 and 2014 was searched to identify patients undergoing primary TJA. Patients with PHS were identified with the ICD-9-CM code 289.81. The χ
-test, the Pearson test, improvements in the perioperative management of patients with hereditary hypercoagulable disorders are essential.

9 hrs ago


Bacterial infection has been a critic problem for implant infections. Poly(L-lactide) (PLLA) membrane has great potential for Guided bone regeneration (GBR), however, PLLA lack antibacterial property and thus may face bacterial infections. In this work, a mussel inspired method was used to treat PLLA membrane with dopamine and formed polydopamine (PDA) coated PLLA (PLLA@PDA), and then silver Nanoparticles (AgNPs) was immobilized on the surface of PLLA via the reduction effect of PDA. The XPS results showed that the silver element contents may be tuned from 1.6% to 15.4%. The AgNPs coated PLLA (PLLA@Ag) showed good antibacterial property (98.3% bactericidal efficiency may be obtained) and good biocompatibility, implying that the PLLA@Ag membrane have potential application as antibacterial GBR membrane, which may enhance the application of PLLA. https://www.selleckchem.com/products/ABT-888.html Copyright © 2020 Wang, Zhan, Zhang, Wu, Liao and Wei.Ischemia-reperfusion injury (IRI), which is triggered by a transient reduction or cessation of blood flow followed by reperfusion, is a significant cause of acute kidney injury (AKI). IRI can lead to acute cell death, tissue injury, and even permanent organ dysfunction. In the clinic, IRI contributes to a higher morbidity and mortality and is associated with an unfavorable prognosis in AKI patients. Unfortunately, effective clinical drugs to protect patients against the imminent risk of renal IRI or treat already existing AKI are still lacking. Fibroblast growth factors (FGFs) are important regulators of key biological and pathological processes, such as embryonic development, metabolic homeostasis and tumorigenesis through the regulation of cell differentiation, migration, proliferation and survival. Accumulating evidence suggests that altered expression of endogenous FGFs is associated with IRI and could be instrumental in mediating the repair process. Therefore, FGFs have been proposed as potential biomarkers in the clinic. More importantly, exogenous FGF ligands have been reported to protect against renal IRI and display promising features for therapy. In this review, we summarize the evidence and mechanisms of AKI following IRI with a focus on the therapeutic capacity of several members of the FGF family to treat AKI after IRI. Copyright © 2020 Deng, Alinejad, Bellusci and Zhang.Nitric oxide (NO)-soluble guanylate cyclase (sGC)-cyclic 3',5' GMP (cGMP) signaling plays a central role in regulation of diverse processes including smooth muscle relaxation, inflammation, and fibrosis. sGC is activated by the short-lived physiologic mediator NO. sGC stimulators are small-molecule compounds that directly bind to sGC to enhance NO-mediated cGMP signaling. Olinciguat, (R)-3,3,3-trifluoro-2-(((5-fluoro-2-(1-(2-fluorobenzyl)-5-(isoxazol-3-yl)-1H-pyrazol-3-yl)pyrimidin-4-yl)amino)methyl)-2-hydroxypropanamide, is a new sGC stimulator currently in Phase 2 clinical development. To understand the potential clinical utility of olinciguat, we studied its pharmacokinetics, tissue distribution, and pharmacologic effects in preclinical models. Olinciguat relaxed human vascular smooth muscle and was a potent inhibitor of vascular smooth muscle proliferation in vitro. These antiproliferative effects were potentiated by the phosphodiesterase 5 inhibitor tadalafil, which did not inhibit vascular smooth musclet may have broad therapeutic potential and that it may be suited for diseases that have both vascular and extravascular pathologies. Copyright © 2020 Zimmer, Shea, Tobin, Tchernychev, Germano, Sykes, Banijamali, Jacobson, Bernier, Sarno, Carvalho, Chien, Graul, Buys, Jones, Wakefield, Price, Chickering, Milne, Currie and Masferrer.Corryocactus brevistylus (K. Schum. ex Vaupel) Britton & Rose (Cactaceae) is a shrubby or often arborescent cactus popularly known as "sancayo" and produce an edible fruit known as "Sanky" which is consumed in Arequipa-Perú. The purpose of this study was to report the gastroprotective activity and relate this activity to the antioxidant capacity and presence of phenolic compounds for the first time. A metabolomic profiling based on Ultrahigh-pressure liquid chromatography and electrospray high resolution mass spectrometry, and the antioxidant activities (DPPH, ABTS, and FRAP), ascorbic acid content, total phenolics and flavonoids contents, and the mode of gastroprotective action of the Sanky fruit including the involvement of prostaglandins, nitric oxide, and sulfhydryl compounds is reported. Thirty-eight compounds were detected in the ethanolic extract including 12 organic acids, nine hydroxycinnamic acids, three isoamericanol derivatives, six flavonoids, five fatty acids, and two sterols. The results of the biological tests showed that the ethanolic extract had antioxidant capacity and gastroprotective activity on the model of HCl/EtOH-induced gastric lesions in mice (at 10, 25, 50, and 100 mg/kg). The effect elicited by the extract at 50 mg/kg was reversed by indometacin and N-ethylmaleimide but not by NG-nitro-L-arginine methyl ester suggesting that sulfhydryl groups and prostaglandins are involved in the mode of gastroprotective action. In conclusion, our study proves that C. brevistylus pears have some gastroprotective and antioxidant capacities and consumption is recommended for the presence of several bioactive compounds. Copyright © 2020 Areche, Hernandez, Cano, Ticona, Cortes, Simirgiotis, Caceres, Borquez, Echeverría and Sepulveda.Autophagy is considered a cytoprotective function in cancer therapy under certain conditions and is a drug resistance mechanism that represents a clinical obstacle to successful cancer treatment and leads to poor prognosis in cancer patients. Because certain clinical drugs and agents in development have cytoprotective autophagy effects, targeting autophagic pathways has emerged as a potential smarter strategy for cancer therapy. Multiple preclinical and clinical studies have demonstrated that autophagy inhibition augments the efficacy of anticancer agents in various cancers. Autophagy inhibitors, such as chloroquine and hydroxychloroquine, have already been clinically approved, promoting drug combination treatment by targeting autophagic pathways as a means of discovering and developing more novel and more effective cancer therapeutic approaches. We summarize current studies that focus on the antitumor efficiency of agents that induce cytoprotective autophagy combined with autophagy inhibitors. Furthermore, we discuss the challenge and development of targeting cytoprotective autophagy as a cancer therapeutic approach in clinical application.

16 hrs ago


Although Hydroxyurea is one of the most widely used drugs in treating breast cancer, the use of it leads to some side effects. Hence, in order to reduce complications of treatment and increase its efficiency, drug delivery has been attracted more attention. Present study included three stages. The first stage was involved in the synthesis of nanoparticles-loaded Hydroxyurea that its characteristics were evaluated by using scanning electron microscopy and Zetasizer system. In the second stage, cultured MCF-7 cells were undergone treatments by Hydroxyurea and Nanoparticles-loaded Hydroxyurea in various concentrations. In the third stage, the MCF-7 was treated by IC50 of Hydroxyurea and nanoparticles-loaded Hydroxyurea which are in combination with radiation and hyperthermia. Afterward, the viable of cell, apoptosis, and levels of caspase-8 and-9 proteins were assessed. The average size and the potential surface of nanoparticles and nanoparticles-loaded Hydroxyurea were 26 nm, 48 nm, 3.86 mV, and -29.3 mV, respectively. Results of MTT assay and apoptosis represented that the percentage of cytotoxicity in the treated groups by in combination group and nanoparticles-loaded Hydroxyurea was significantly increased in comparison with Hydroxyurea. This increase was dependent on the concentration of nanoparticles-loaded Hydroxyurea. Nevertheless, the activity of caspase-8 shows any significant changes, the activity of caspase-9 was significantly increased in the control and treatment groups. We concluded that nanoparticles-loaded Hydroxyurea and it in combination with radiation and hyperthermia induces mitochondrial-dependent apoptosis by down-regulation of caspase-8 and up-regulation of caspase-9 expressions and have higher toxicity effect on MCF-7 cells in comparison with pure Hydroxyurea.LED light is used for many medical and cosmetic applications such as phototherapy and skin rejuvenation. Such physical methods can be combined with drug therapy, such as LED-responsive drug delivery system, the subject of present investigation. To perform this investigation, a nanoliposome composed of DPPC, DSPE-PEG2000, and DC8,9PC, was prepared as LED-sensitive systems. Calcein was loaded in the liposomes as a fluorescent probe for drug release studies. https://www.selleckchem.com/products/Rapamycin.html Different LED wavelengths (blue, green and red) were used for triggering release of calcein from nanoliposome. Indoor daylight, darkness, and sunlight were applied as controls. Results showed that liposomes do not release their cargo in darkness, but they released it in response to indoor daylight, sunlight and LEDs, with the blue light showing the highest effect. Results also showed that release of calcein was sensitive to wavelength. Our results reveal potential of LED-sensitive liposomes for medical and cosmetic applications and that such system can be combined with phototherapy. Such concomitant therapies can increase medical/cosmetic effects and decrease adverse reactions to phototherapy.In order to expand the application of Fe3O4@SiO2-SnCl4 in the synthesis of heterocyclic compounds, in this study, we wish to report the use of one-pot three component synthesis of pyrimido [4,5-b]quinolone derivatives ( D1-D16 ) through reaction of 6-amino-2-(methylthio)pyrimidin-4 (3H)-one, dimedone, or 1,3-cyclohexadione and aldehydes in the presence of Fe3O4@SiO2-SnCl4 as an efficient eco-friendly catalyst under ultrasound irradiation. The final aim of this study is evaluation of antifungal activity of resulted products. Synthesis of pyrimido [4,5-b]quinolin derivatives were done via three components coupling reaction of aldehyde, dimedone or 1,3-cyclohexadione and 6-amino-2-(methylthio)pyrimidin-4 (3H)-one in the presence of Fe3O4@SiO2-SnCl4 under ultrasonic irradiation in water at 60 °C. The products structure were studied by FT-IRI, 1H NMR,II and 13C NMRII. All the compounds were screened for antimicrobial activity by broth microdilution methods as recommended by CLSIIII. Considering our results showed that compound ( D13 ) had the most antifungal activity against C. dubliniensis, C. Albicans, C. Tropicalis, and C. Neoformance at concentrations ranging (MIC90) from 1-4 μg/mL. Compounds ( D9 ), ( D10 ), ( D14 ), and ( D15 ) had significant inhibitory activities against C. dubliniensis at concentrations ranging (MIC90) from 4-8 μg/mL, respectively. 5-(3,4-dihydroxyphenyl)-8,8-dimethyl-2-(methylthio)-5,8,9,10-tetrahydropyrimido[4,5-b]quinoline-4,6(3H,7H)-dione ( D13 ) exhibited inhibitory and fungicidal activities against the tested yeasts. The specific binding mode or the binding orientation of more efficient compounds to CYP51 active site, have been also performed by molecular modeling investigations and showed that there is a good correlation with biological test.Levisticum officinale (Apiaceae) is a favorite food spice. Iranian folk medicine claims that it has a prominent antidyslipidemic property but this is not documented scientifically so far. This study evaluated antidyslipidemic and the other antidiabetic aspects of the stem and leaf hydroalcoholic extract of it (LOE). Regarding oral glucose tolerance test results, LOE (500 mg/kg) administration 30 min before glucose loading significantly decreased the blood glucose level (13%) at 90 min in male rats. Additionally, LOE treatment (500 mg/kg, orally, once a day) for 14 days significantly reduced the serum glucose level (24.97%) and markedly improved the lipid profile and the insulin, creatinine, alanine aminotransferase and aspartate aminotransferase serum levels in diabetic rats. Moreover, LOE effectively amended the impaired antioxidant status and ameliorated lipid peroxidation in the plasma and pancreas and liver tissues of diabetics. Also, 14 days LOE treatment, significantly decreased the renal sodium-glucose cotransporter 2 and facilitated glucose transporter 2 (GLUT2) mRNA levels and GLUT2 gene expression in the enterocytes of jejunum tissue in comparison with diabetic untreated rats. HPLC method revealed the presence of chlorogenic acid, rosmarinic acid, caffeic acid, quercetin and luteolin and GC-MS analysis detected bioactive compounds like phthalides, thymol, phytol, hexanoic acid, carene and menthofuran. LOE showed α-amylase (αΑ) inhibitory activity and in silico studies predicted that among extract ingredients luteolin, quercetin, rosmarinic, caffeic, and hexanoic acids have the greatest αΑ inhibition potecy. Thus, current results justify antidyslipidemic value of L. officinale and shed light on more antidiabetic health benefits of it.

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5 hrs ago


30-9.27, SD 2.59-0.91). Barriers to implementation identified by rheumatologists included time, appointment availability and perceived patient reluctance to escalate medications. Usability experiences with the KT-tool were tracked and clinicians reported it was easy to use (100%), resulted in a discussion of RA-T2T (73%) and a target being set for 63% of consults. Patients reported they read (92%) and understood (87%) the information in the KT-tool, and that a target was set in 62% of interactions.

RA-T2T uptake in clinical practice may be improved through understanding local clinician and patient barriers and an implementation strategy utilizing a patient-driven KT-tool.
RA-T2T uptake in clinical practice may be improved through understanding local clinician and patient barriers and an implementation strategy utilizing a patient-driven KT-tool.The recovery of blood supply after a period of myocardial ischaemia does not restore the heart function and instead results in a serious dysfunction called myocardial ischaemia-reperfusion injury (IRI), which involves several complex pathophysiological processes. Mitochondria have a wide range of functions in maintaining the cellular energy supply, cell signalling and programmed cell death. When mitochondrial function is insufficient or disordered, it may have adverse effects on myocardial ischaemia-reperfusion and therefore mitochondrial dysfunction caused by oxidative stress a core molecular mechanism of IRI. Peroxisome proliferator-activated receptor gamma co-activator 1α (PGC-1α) is an important antioxidant molecule found in mitochondria. However, its role in IRI has not yet been systematically summarized. https://www.selleckchem.com/products/SB-203580.html In this review, we speculate the role of PGC-1α as a key regulator of mitonuclear communication, which may interacts with nuclear factor, erythroid 2 like -1 and -2 (NRF-1/2) to inhibit mitochondrial oxidative stress, promote the clearance of damaged mitochondria, enhance mitochondrial biogenesis, and reduce the burden of IRI.Sustained androgen receptor (AR) signaling and apoptosis evasion are among the main hurdles of castration-resistant prostate cancer (CRPC) treatment. We designed and synthesized isothiocyanate (ITC)-containing hybrid AR antagonist (ITC-ARi) and rationally combined ITC-ARi with GSH synthesis inhibitor buthionine sulfoximine (BSO) to efficiently downregulate AR/AR splice variant and induce ferroptosis in CRPC cells. The representative ITC-ARi 13 is an AR ligand that contains an N-acetyl cysteine-masked ITC moiety and gradually releases parental unconjugated ITC 12b in aqueous solution. The in vitro anti-PCa activities of 13, such as growth inhibition and AR downregulation, are significantly enhanced when combined with BSO. The drug combination caused notable lipid peroxidation and the cell viability was effectively rescued by iron chelator, antioxidants or the inhibitor of heme oxygenase-1, supporting the induction of ferroptosis. 13 and BSO cooperatively downregulate AR and induce ferroptosis likely through increasing the accessibility of 13/12b to cellular targets, escalating free intracellular ferrous iron and attenuating GSH-centered cellular defense and adaptation. Further studies on the combination of ITC-ARi and GSH synthesis inhibitor could result in a new modality against CRPC.
The number of cancer survivors has increased rapidly, and there is a higher risk of developing a second cancer. Whether a prior malignancy could affect survival outcomes is unknown. We aimed to investigate the clinical characteristics and prognostic outcomes of prior malignancies in patients with gastric cancer.

Patient data were extracted from the Surveillance, Epidemiology, and End Results (SEER) database. We used the Kaplan-Meier method, competing risk models, and Cox regression models to evaluate the impact of prior malignancy on survival outcomes.

Among 71,809 patients with primary gastric cancer, 6667 (9.3%) patients had a pre-existing cancer. Prostate (31.86%), breast (14.34%), and colon and rectum (10.32%) cancer were the most common types. A significant difference was observed in the overall survival rates between patients with and without prior cancer (log-rank=139.73, p<0.001). In the subgroup analysis, patients with prostate, uterine corpus, lung and bronchus, colon and rectum, esophagus, urinary bladder, leukemia, brain and other nervous system, oral cavity and pharynx, and breast cancer faced inferior survival than those without prior cancer.

A history of prior cancer was associated with worse overall survival in patients with gastric cancer, and the effects varied by different initial cancer types. The exclusion and inclusion of patients who had previous malignancies should be reconsidered according to the specific malignancy types.
A history of prior cancer was associated with worse overall survival in patients with gastric cancer, and the effects varied by different initial cancer types. The exclusion and inclusion of patients who had previous malignancies should be reconsidered according to the specific malignancy types.
To analyze perioperative complications, resource consumption, and inpatient mortality of patients who receive total joint arthroplasty (TJA) with a concomitant diagnosis of a primary hypercoagulable state (PHS). The following questions were posed in the present paper. First, do patients undergoing TJA with PHS have increased risk of deep venous thrombosis (DVT), pulmonary embolism (PE), and periprosthetic joint infection (PJI)? Second, what other in-hospital complications are more likely among PHS patients undergoing TJA? Third, do TJA patients with PHS usually consume greater in-hospital resources? Fourth, do PHS patients suffer higher mortality rates compared to non-PHS patients? Finally, have PHS patients received proper anticoagulant management in past arthroplasties?

The National Inpatient Sample (NIS) database for the years between 2003 and 2014 was searched to identify patients undergoing primary TJA. Patients with PHS were identified with the ICD-9-CM code 289.81. The χ
-test, the Pearson test, improvements in the perioperative management of patients with hereditary hypercoagulable disorders are essential.

9 hrs ago


Bacterial infection has been a critic problem for implant infections. Poly(L-lactide) (PLLA) membrane has great potential for Guided bone regeneration (GBR), however, PLLA lack antibacterial property and thus may face bacterial infections. In this work, a mussel inspired method was used to treat PLLA membrane with dopamine and formed polydopamine (PDA) coated PLLA (PLLA@PDA), and then silver Nanoparticles (AgNPs) was immobilized on the surface of PLLA via the reduction effect of PDA. The XPS results showed that the silver element contents may be tuned from 1.6% to 15.4%. The AgNPs coated PLLA (PLLA@Ag) showed good antibacterial property (98.3% bactericidal efficiency may be obtained) and good biocompatibility, implying that the PLLA@Ag membrane have potential application as antibacterial GBR membrane, which may enhance the application of PLLA. https://www.selleckchem.com/products/ABT-888.html Copyright © 2020 Wang, Zhan, Zhang, Wu, Liao and Wei.Ischemia-reperfusion injury (IRI), which is triggered by a transient reduction or cessation of blood flow followed by reperfusion, is a significant cause of acute kidney injury (AKI). IRI can lead to acute cell death, tissue injury, and even permanent organ dysfunction. In the clinic, IRI contributes to a higher morbidity and mortality and is associated with an unfavorable prognosis in AKI patients. Unfortunately, effective clinical drugs to protect patients against the imminent risk of renal IRI or treat already existing AKI are still lacking. Fibroblast growth factors (FGFs) are important regulators of key biological and pathological processes, such as embryonic development, metabolic homeostasis and tumorigenesis through the regulation of cell differentiation, migration, proliferation and survival. Accumulating evidence suggests that altered expression of endogenous FGFs is associated with IRI and could be instrumental in mediating the repair process. Therefore, FGFs have been proposed as potential biomarkers in the clinic. More importantly, exogenous FGF ligands have been reported to protect against renal IRI and display promising features for therapy. In this review, we summarize the evidence and mechanisms of AKI following IRI with a focus on the therapeutic capacity of several members of the FGF family to treat AKI after IRI. Copyright © 2020 Deng, Alinejad, Bellusci and Zhang.Nitric oxide (NO)-soluble guanylate cyclase (sGC)-cyclic 3',5' GMP (cGMP) signaling plays a central role in regulation of diverse processes including smooth muscle relaxation, inflammation, and fibrosis. sGC is activated by the short-lived physiologic mediator NO. sGC stimulators are small-molecule compounds that directly bind to sGC to enhance NO-mediated cGMP signaling. Olinciguat, (R)-3,3,3-trifluoro-2-(((5-fluoro-2-(1-(2-fluorobenzyl)-5-(isoxazol-3-yl)-1H-pyrazol-3-yl)pyrimidin-4-yl)amino)methyl)-2-hydroxypropanamide, is a new sGC stimulator currently in Phase 2 clinical development. To understand the potential clinical utility of olinciguat, we studied its pharmacokinetics, tissue distribution, and pharmacologic effects in preclinical models. Olinciguat relaxed human vascular smooth muscle and was a potent inhibitor of vascular smooth muscle proliferation in vitro. These antiproliferative effects were potentiated by the phosphodiesterase 5 inhibitor tadalafil, which did not inhibit vascular smooth musclet may have broad therapeutic potential and that it may be suited for diseases that have both vascular and extravascular pathologies. Copyright © 2020 Zimmer, Shea, Tobin, Tchernychev, Germano, Sykes, Banijamali, Jacobson, Bernier, Sarno, Carvalho, Chien, Graul, Buys, Jones, Wakefield, Price, Chickering, Milne, Currie and Masferrer.Corryocactus brevistylus (K. Schum. ex Vaupel) Britton & Rose (Cactaceae) is a shrubby or often arborescent cactus popularly known as "sancayo" and produce an edible fruit known as "Sanky" which is consumed in Arequipa-Perú. The purpose of this study was to report the gastroprotective activity and relate this activity to the antioxidant capacity and presence of phenolic compounds for the first time. A metabolomic profiling based on Ultrahigh-pressure liquid chromatography and electrospray high resolution mass spectrometry, and the antioxidant activities (DPPH, ABTS, and FRAP), ascorbic acid content, total phenolics and flavonoids contents, and the mode of gastroprotective action of the Sanky fruit including the involvement of prostaglandins, nitric oxide, and sulfhydryl compounds is reported. Thirty-eight compounds were detected in the ethanolic extract including 12 organic acids, nine hydroxycinnamic acids, three isoamericanol derivatives, six flavonoids, five fatty acids, and two sterols. The results of the biological tests showed that the ethanolic extract had antioxidant capacity and gastroprotective activity on the model of HCl/EtOH-induced gastric lesions in mice (at 10, 25, 50, and 100 mg/kg). The effect elicited by the extract at 50 mg/kg was reversed by indometacin and N-ethylmaleimide but not by NG-nitro-L-arginine methyl ester suggesting that sulfhydryl groups and prostaglandins are involved in the mode of gastroprotective action. In conclusion, our study proves that C. brevistylus pears have some gastroprotective and antioxidant capacities and consumption is recommended for the presence of several bioactive compounds. Copyright © 2020 Areche, Hernandez, Cano, Ticona, Cortes, Simirgiotis, Caceres, Borquez, Echeverría and Sepulveda.Autophagy is considered a cytoprotective function in cancer therapy under certain conditions and is a drug resistance mechanism that represents a clinical obstacle to successful cancer treatment and leads to poor prognosis in cancer patients. Because certain clinical drugs and agents in development have cytoprotective autophagy effects, targeting autophagic pathways has emerged as a potential smarter strategy for cancer therapy. Multiple preclinical and clinical studies have demonstrated that autophagy inhibition augments the efficacy of anticancer agents in various cancers. Autophagy inhibitors, such as chloroquine and hydroxychloroquine, have already been clinically approved, promoting drug combination treatment by targeting autophagic pathways as a means of discovering and developing more novel and more effective cancer therapeutic approaches. We summarize current studies that focus on the antitumor efficiency of agents that induce cytoprotective autophagy combined with autophagy inhibitors. Furthermore, we discuss the challenge and development of targeting cytoprotective autophagy as a cancer therapeutic approach in clinical application.

16 hrs ago


Although Hydroxyurea is one of the most widely used drugs in treating breast cancer, the use of it leads to some side effects. Hence, in order to reduce complications of treatment and increase its efficiency, drug delivery has been attracted more attention. Present study included three stages. The first stage was involved in the synthesis of nanoparticles-loaded Hydroxyurea that its characteristics were evaluated by using scanning electron microscopy and Zetasizer system. In the second stage, cultured MCF-7 cells were undergone treatments by Hydroxyurea and Nanoparticles-loaded Hydroxyurea in various concentrations. In the third stage, the MCF-7 was treated by IC50 of Hydroxyurea and nanoparticles-loaded Hydroxyurea which are in combination with radiation and hyperthermia. Afterward, the viable of cell, apoptosis, and levels of caspase-8 and-9 proteins were assessed. The average size and the potential surface of nanoparticles and nanoparticles-loaded Hydroxyurea were 26 nm, 48 nm, 3.86 mV, and -29.3 mV, respectively. Results of MTT assay and apoptosis represented that the percentage of cytotoxicity in the treated groups by in combination group and nanoparticles-loaded Hydroxyurea was significantly increased in comparison with Hydroxyurea. This increase was dependent on the concentration of nanoparticles-loaded Hydroxyurea. Nevertheless, the activity of caspase-8 shows any significant changes, the activity of caspase-9 was significantly increased in the control and treatment groups. We concluded that nanoparticles-loaded Hydroxyurea and it in combination with radiation and hyperthermia induces mitochondrial-dependent apoptosis by down-regulation of caspase-8 and up-regulation of caspase-9 expressions and have higher toxicity effect on MCF-7 cells in comparison with pure Hydroxyurea.LED light is used for many medical and cosmetic applications such as phototherapy and skin rejuvenation. Such physical methods can be combined with drug therapy, such as LED-responsive drug delivery system, the subject of present investigation. To perform this investigation, a nanoliposome composed of DPPC, DSPE-PEG2000, and DC8,9PC, was prepared as LED-sensitive systems. Calcein was loaded in the liposomes as a fluorescent probe for drug release studies. https://www.selleckchem.com/products/Rapamycin.html Different LED wavelengths (blue, green and red) were used for triggering release of calcein from nanoliposome. Indoor daylight, darkness, and sunlight were applied as controls. Results showed that liposomes do not release their cargo in darkness, but they released it in response to indoor daylight, sunlight and LEDs, with the blue light showing the highest effect. Results also showed that release of calcein was sensitive to wavelength. Our results reveal potential of LED-sensitive liposomes for medical and cosmetic applications and that such system can be combined with phototherapy. Such concomitant therapies can increase medical/cosmetic effects and decrease adverse reactions to phototherapy.In order to expand the application of Fe3O4@SiO2-SnCl4 in the synthesis of heterocyclic compounds, in this study, we wish to report the use of one-pot three component synthesis of pyrimido [4,5-b]quinolone derivatives ( D1-D16 ) through reaction of 6-amino-2-(methylthio)pyrimidin-4 (3H)-one, dimedone, or 1,3-cyclohexadione and aldehydes in the presence of Fe3O4@SiO2-SnCl4 as an efficient eco-friendly catalyst under ultrasound irradiation. The final aim of this study is evaluation of antifungal activity of resulted products. Synthesis of pyrimido [4,5-b]quinolin derivatives were done via three components coupling reaction of aldehyde, dimedone or 1,3-cyclohexadione and 6-amino-2-(methylthio)pyrimidin-4 (3H)-one in the presence of Fe3O4@SiO2-SnCl4 under ultrasonic irradiation in water at 60 °C. The products structure were studied by FT-IRI, 1H NMR,II and 13C NMRII. All the compounds were screened for antimicrobial activity by broth microdilution methods as recommended by CLSIIII. Considering our results showed that compound ( D13 ) had the most antifungal activity against C. dubliniensis, C. Albicans, C. Tropicalis, and C. Neoformance at concentrations ranging (MIC90) from 1-4 μg/mL. Compounds ( D9 ), ( D10 ), ( D14 ), and ( D15 ) had significant inhibitory activities against C. dubliniensis at concentrations ranging (MIC90) from 4-8 μg/mL, respectively. 5-(3,4-dihydroxyphenyl)-8,8-dimethyl-2-(methylthio)-5,8,9,10-tetrahydropyrimido[4,5-b]quinoline-4,6(3H,7H)-dione ( D13 ) exhibited inhibitory and fungicidal activities against the tested yeasts. The specific binding mode or the binding orientation of more efficient compounds to CYP51 active site, have been also performed by molecular modeling investigations and showed that there is a good correlation with biological test.Levisticum officinale (Apiaceae) is a favorite food spice. Iranian folk medicine claims that it has a prominent antidyslipidemic property but this is not documented scientifically so far. This study evaluated antidyslipidemic and the other antidiabetic aspects of the stem and leaf hydroalcoholic extract of it (LOE). Regarding oral glucose tolerance test results, LOE (500 mg/kg) administration 30 min before glucose loading significantly decreased the blood glucose level (13%) at 90 min in male rats. Additionally, LOE treatment (500 mg/kg, orally, once a day) for 14 days significantly reduced the serum glucose level (24.97%) and markedly improved the lipid profile and the insulin, creatinine, alanine aminotransferase and aspartate aminotransferase serum levels in diabetic rats. Moreover, LOE effectively amended the impaired antioxidant status and ameliorated lipid peroxidation in the plasma and pancreas and liver tissues of diabetics. Also, 14 days LOE treatment, significantly decreased the renal sodium-glucose cotransporter 2 and facilitated glucose transporter 2 (GLUT2) mRNA levels and GLUT2 gene expression in the enterocytes of jejunum tissue in comparison with diabetic untreated rats. HPLC method revealed the presence of chlorogenic acid, rosmarinic acid, caffeic acid, quercetin and luteolin and GC-MS analysis detected bioactive compounds like phthalides, thymol, phytol, hexanoic acid, carene and menthofuran. LOE showed α-amylase (αΑ) inhibitory activity and in silico studies predicted that among extract ingredients luteolin, quercetin, rosmarinic, caffeic, and hexanoic acids have the greatest αΑ inhibition potecy. Thus, current results justify antidyslipidemic value of L. officinale and shed light on more antidiabetic health benefits of it.

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OBJECTIVES To evaluate the factors related to breast cancer (BC) recurrence as well as survival in women ≤40 years old. METHODS This is a retrospective medical record review of women aged ≤40 years diagnosed with BC stages I to III between January 2009 and June 2017 at King Abdulaziz University Hospital (KAUH), Jeddah, Saudi Arabia. Demographic data collected included patients' initial presentation (including age and date of diagnosis), imaging studies, tumor characteristics, type of surgery, systemic therapy (if any) received, and site of first recurrence. Data was analyzed to assess recurrence rate, disease-free survival (DFS), and overall survival (OS), and determine associated factors. Descriptive statistics were used to calculate the mean, median, standard deviation, and quartiles. Chi-square test was performed to test the association between 2 variables. Kaplan-Meier analyses were performed to assess survival distribution. RESULTS A total of 117 patients were included for analysis. Median follow-up was 16 months (range 0 to 99). Five-year DFS 57% and OS was 89%. Adjuvant chemotherapy was associated with a better DFS (hazard ratio of 0.204; 95% confidence interval, 0.050 to 0.832; p=0.027). Higher tumor, node, metastasis stage was significantly associated with worse DFS (p=0.034). Fewer postoperative follow-up visits signi cantly predicted recurrence (p=0.003). CONCLUSION We found a high risk of BC recurrence among patients at our institution. Higher cancer stage, nonuse adjuvant chemotherapy, and low follow-up rate were significant predictive factors for recurrence.OBJECTIVES To assess the predictive function of miR-21 rs1292037 A greater than G polymorphism in survival and ischemia-reperfusion injury (IRI) in hepatocellular carcinoma (HCC) patients. METHODS The experiment was carried out between July 2018 and July 2019, whereas the prospective clinical study was carried out between January 2014 and January 2019. In this study, 62 HCC patients with hepatitis B virus (HBV), 17 HCC patients without HBV, and 13 healthy controls were investigated. Micro-RNA-21 levels in the blood were identified using quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and allele specific PCR for miR-21 rs1292037. Partial hepatectomy was performed in all patients, and the tumor development indicators and survival time were evaluated in a subsequent follow-up. Cell-based simulated IRI model of HCC huh7 cell line was used to determine the functions of miR-21 with respect to IRI and proliferation. RESULTS Micro-RNA-21 levels were significantly increased in HCC patients. Furthermore, an miR- 21 rs1292037 A greater than G polymorphism was found to be significantly associated with HCC prognosis and severity of liver injury after hepatectomy. In vitro study revealed that miR-21 might prevent IRI from occurring, and can induce proliferation in HCC huh7 cells. These functions of miR-21 were demonstrated to be triggered by IL-12A inhibition. CONCLUSION Micro-RNA-21 rs1292037 A greater than G polymorphism can predict IRI and tumor progression by regulating the miR-21/IL-12A.axis.OBJECTIVES To investigate the prognostic value of neutrophil-to-lymphocyte ratio (NLR) plus the lymphocyte-to-monocyte ratio (LMR) to predict survival outcomes in huge hepatocellular carcinoma (HCC) patients undergoing transarterial chemoembolization (TACE). METHODS There were 180 huge HCC patients undergoing TACE between 2011 and 2017 were retrospectively analyzed. Patients who has an increased NLR (greater than 3.94) and a decreased LMR (≤2.20) were assessed score 2 according to receiver operating characteristic (ROC) curve, and patients who were assigned with 1, with one of these characteristic or 0 with neither of these characteristics. We used univariate and multivariate analyses for evaluations of the predicative NLR, LMR and other values about overall survival (OS) using multivariate Cox's regression. RESULTS The liver function index such as aspartate transaminase, alanine transaminase, and total bilirubin, as well as in ammatory biomarkers like absolute neutrophil count, monocyte count, lymphocyte count, seemed much larger than the groups with an NLR-LMR score of 2 than in the other 2 groups (p less than 0.05 for all), including BCLC stage. Higher NLR plus a low level of LMR predicted a short median OS. Multivariate Cox's regression revealed that an NLR-LMR score of 2 was a useful predictor of OS in huge HCC patients after TACE. CONCLUSION The pretreatment NLR plus LMR are effective for predicting survival outcomes in huge HCC patients after TACE.OBJECTIVES To identify the trends in the diagnostic frequency of glomerular disease subtypes by renal biopsy in children in Saudi Arabia over the last 20 years. METHODS In this retrospective observational study, we identified all patients aged less than 18 years for whom native kidney biopsy was performed between 1998 and 2017. The period during which biopsy was performed (1998-2004, 2005-2011, and 2012-2017) and the demographic information and their association with the prevalence of various glomerular disease subtypes were our primary outcomes. Results A total of 326 cases with renal biopsy were analyzed; the mean age of participants being 11 years and 45.4% of them were girls. Unexpectedly, secondary glomerulonephritis accounted for 42.3% of the cases, and lupus nephritis was the most common cause noted in 20.7% of the cases. The minimal change and focal segmental glomerulosclerosis were the most common glomerulonephritis in 59% of the cases. The frequency of membranoproliferative glomerulonephritis and mesangioproliferative glomerulonephritis significantly decreased from 15% and 17% in the period prior to 2004 to 3.3% (p=0.003) and 1.7% in 2012-2017 (p less than 0.001). CONCLUSIONS We found a considerable shift in the frequency of many glomerular disease subtypes in 1998-2017, which make clinical predication of the underlying etiology challenging for clinician. Renal biopsy still remains a critical diagnostic procedure for managing a considerable proportion of renal diseases.OBJECTIVES To investigate the effect of androgens and estrogens on surtuin 1 (SIRT1) expression in human aortic endothelial cells (HAECs). METHODS Real-time polymerase chain reaction analysis of SIRT-1 expression over 48 hours (h) was performed in HAECs treated with various concentrations of dehydroepiandrostendione (DHEA), androstenedione and testosterone (androgens), estrone (E1), estradiol (E2), and estriol (E3) (estrogens) to investigate the dose-dependency of time courses. https://www.selleckchem.com/products/DMXAA(ASA404).html The influence of high glucose on SIRT1 expression induced by the androgens and estrogens was also examined. RESULTS Dehydroepiandrostendione, androstenedione, and testosterone remarkedly produced a dose-dependent increase in SIRT1 expression in the range of 10 to 20 μg/ml. High glucose (40mM) medium had significantly inhibitory effects on 10 μg/ml DHEA-induced SIRT1 expression (p=0.024). Estrone and E2, but not E3, caused a marked dose-dependent increase in SIRT1 expression from 10 to 20 μg/ml. Treatment with 20 mM or 40 mM glucose medium did not significantly inhibit E1- and E3-induced SIRT1 expression in control medium; however, both high glucose mediums significantly emphasized E2-induced SIRT1 expression in control medium (p=0.

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Innate immune reactions are believed to be associated with ischemia/reperfusion injury (IRI), and IRI might be treatable by expanding regulatory T cells (Tregs), which can suppress the excessive responses of the immune system. Organ IRI is known to be closely involved in the expression of costimulatory molecules. The present study aimed to assess whether Tregs endogenously expanded by the administration of trichostatin A (TsA), a histone deacetylase inhibitor, could reduce renal IRI and to clarify their association with the expression of costimulatory molecules in a murine model. In this study, the wild-type mice used for an IRI model were randomly divided into the following four treatment groups TsA group, DMSO group (control), DMSO+PC61 group, and TsA + PC61 group. Renal injury in the early phase after IRI was ameliorated in the TsA group (increased Tregs) when compared with the other groups. After renal IRI, both the mRNA and the protein levels of anti-inflammatory cytokines, IL-10 and TGF-β in the kidney and spleen were significantly higher in the TsA group than in the other groups, whereas the IL-6 levels were significantly lower in the TsA group than in the other groups. These results were offset by the administration of PC61, supporting that the renoprotective effect of TsA in this study is Treg dependent. mRNA expression levels of CD80, CD86, and ICAM-1 were lower in the TsA group, consistent with Treg control of injury through costimulatory molecules. Our findings suggest that endogenously expanded Tregs coordinate postischemic immune responses and decrease the expression of costimulatory molecules after renal IRI, and thus, they might ameliorate renal IRI. TsA administration for expanding Tregs is a promising therapeutic strategy for renal IRI.Xuezhikang (XZK) is an extract derived from red yeast rice that is commonly used to treat cardiovascular conditions as a traditional Chinese medicine, both within China and globally. Genotoxicity, acute toxicity, and a 26-week toxicity study in rat have been reported in our previous publication. The present study was designed to assess the long-term safety of XZK when administered orally to dogs. Dogs were treated with encapsulated XZK at a maximum dose of 2000 mg/kg followed by 1000 mg/kg and 500 mg/kg (n = 6/sex/group) for this 26-week oral toxicity study. Control animals were given an empty capsule. Treated animals were then monitored through measurements of body weight, body temperature, food intake, ophthalmic and electrocardiogram examinations, general clinical observations, mortality rates, and clinical and anatomic pathological findings. Additionally, blood samples were collected and used to conduct hematological and biochemical analysis. Several abnormalities were found in all groups including fecal abnormalities (including mucoid, poorly formed, or liquid feces). Moreover, reduced CHOL and TRIG values were seen in all XZK groups (p less then 0.05), increased WBC and NEUT levels in 500 mg/kg group (males only, p less then 0.05), and elevated AST, ALT, and ALP activities in 2000 mg/kg group (p less then 0.05). These changes were resolved in the recovery period. The results indicated that XZK may temporarily impact the liver enzyme levels, but were not considered adverse effects. These findings yielded a NOAEL for XZK in dogs of 2000 mg/kg.Glioblastoma multiforme (GBM) is a particularly aggressive and malignant type of brain tumor, notorious for its high recurrence rate and low survival rate. The treatment of GBM is challenging mainly because several issues associated with the GBM microenvironment have not yet been resolved. These obstacles originate from a variety of factors such as genetics, anatomy, and cytology, all of which collectively hinder the treatment of GBM. Recent advances in materials and device engineering have presented new perspectives with regard to unconventional drug administration methods for GBM treatment. https://www.selleckchem.com/peptide/pmx-205.html Such novel drug delivery approaches, based on the clear understanding of the intrinsic properties of GBM, have shown promise in overcoming some of the obstacles. In this review, we first recapitulate the first-line therapy and clinical challenges in the current treatment of GBM. Afterwards, we introduce the latest technological advances in drug delivery strategies to improve the efficiency for GBM treatment, mainly focusing on materials and devices. We describe such efforts by classifying them into two categories, systemic and local drug delivery. Finally, we discuss unmet challenges and prospects for the clinical translation of these drug delivery technologies.Studies have demonstrated the advantages associated with heat-triggered drug delivery via thermosensitive liposomes for the treatment of localized cancer. Challenges that traditional liposomal systems face such as limited drug release and homogeneous distribution throughout the region of interest can potentially be overcome when triggering intravascular drug release. The most prominent example is a thermosensitive liposome formulation of doxorubicin known as ThermoDox®. Many other drugs may benefit from the same targeted and localized delivery approach using thermosensitive liposomes as it can result in a significant improvement in the therapeutic index. Vinorelbine is a semi-synthetic vinca alkaloid which has shown to be active in a broad range of cancers. Several liposome formulations encapsulating vinorelbine have been developed as a means to reduce systemic drug exposure. The present study takes a systematic approach in exploring formulation and drug loading parameters and their influence on performance characteristics of a rapidly releasing thermosensitive liposome formulation of vinorelbine. More broadly, this study shows that trends observed for non-thermosensitive liposome formulations of specific drugs (i.e. vinorelbine) can not be easily translated to their thermosensitive counterparts. The profound impact of the presence of albumin on stability and in vitro release is also highlighted. This is of significance given that a number of recent reports examine drug release in the absence of biologically relevant components. As a result, a strong recommendation emanating from this is a thorough challenge of the liposome formulation in vitro in order to gain a better understanding of its likely behaviour in vivo as well as potential for future clinical translation.