12/02/2024


Different human leukocyte antigen (HLA) variants are known to modulate the risk of multiple sclerosis. The main objective of this study wasto identifyHLA-DRB1 and HLA-DQB1 alleles and Non -HLA gene IL7R (rs6897932) variants associated with MS.

Patients attending the MS clinic, diagnosed with Multiple Sclerosis as per Mc Donald diagnostic criteria were the subjects in the study. The association of the highly polymorphic HLA-DRB1and HLA-DQB1 loci was determined by high resolution tissue typing and the genotyping of the IL7R (rs6897932) variants was performed by Sanger sequencing in MS patients (n = 81) and healthy individuals (n = 82).

HLA-DRB1*1501/1502 alleles (OR = 3.65; p< 0.0001) and HLA-DQB1*0602 (OR=4.19, p<0.0001) were found to be positively associated while HLA-DRB1*140401 (OR = 0.21; p = 0.0009) was found to be negatively associated with MS. The most significant predisposing HLA haplotype was found to be DRB1*1501-DQB1*0602 (OR=5.69, p<0.0001). Univariate analysis of IL7R SNP (rs6897932) showed no significant association with MS in our population whereas analysis of HLA-DRB1 alleles and IL7R (rs6897932) genotypes showed significant association between the HLA-DRB1*1501/1502 and the IL7R (rs6897932) CC genotype (OR = 3.58, p = 0.0002).

HLA-DRB1*1501, 1502 and DQB1*0602 are the predisposing alleles while HLA-DRB1*1404 is the protective allele for MS in our population.
HLA-DRB1*1501, 1502 and DQB1*0602 are the predisposing alleles while HLA-DRB1*1404 is the protective allele for MS in our population.
Siblings undergo unique experiences in growing up with brothers and sisters with intellectual and developmental disabilities (IDD). Although sibling relationships or adjustments among individuals with IDD have received greater attention from the disability field, there has been still less attention to how cultural identities (e.g., race, ethnicity) may influence experiences of siblings of individuals with IDD.

This study used scoping review methodology to understand cross-cultural experiences of siblings of individuals with IDD in the United States.

Eight articles met inclusion criteria, using the PubMed, Web of Knowledge, PsycINFO, and ERIC databases.

Studies reported the impact of cultural identities on sibling emotional and behavioral functioning, school functioning, and caregiving responsibilities.

The need for culturally responsive sibling interventions and implications for international contexts is discussed.
The need for culturally responsive sibling interventions and implications for international contexts is discussed.
It has long been debated whether in Williams syndrome (WS) there is a preferential processing of local with respect to global forms, in contrast to the typical 'global advantage' in healthy individuals, which in WS seems to exist only for faces.

We aimed at verifying it and to assess the role of stimulus familiarity by comparing performances with faces to those with other objects using the same type of task.

A group of children and adolescents with WS and controls with typical development performed a modified version of three tasks Mooney (with faces and/or guitars), Jane (with faces and houses) and Navon task.

Individuals with WS were able to process at a global level not only faces but also objects, although they were impaired when they had to compare or discriminate between two stimuli. All groups showed an advantage for global processing, with familiarity improving it. However, WS participants did not benefit from familiarity as much as typically developing young individuals.

Peculiar abilities for face stimuli in WS did not emerge nor did a clear facilitation related to object familiarity. These results are useful for planning effective interventions.
Peculiar abilities for face stimuli in WS did not emerge nor did a clear facilitation related to object familiarity. These results are useful for planning effective interventions.Bioconjugate gold-based nanostructures combining the plasmonic photothermal effect with photothermal-triggered DNA delivery are appealing materials for medical diagnostic and therapy for cell-based disease. https://www.selleckchem.com/products/rp-6306.html In this study, we demonstrate the use of surface hybridization to prepare DNA-modified gold nanorods to be used as photo-delivery system for single stranded oligonucleotides. The as prepared DNA modified gold nanorods have strong absorption bands in the visible and near-infrared regions in which the absorbed light through photothermal effect, induces a surface temperature increasing up to the melting temperature with consequent DNA release. No evident DNA release was observed below the melting temperature. The experimental data were supported by molecular dynamic simulation investigation, showing the kinetics aspect of dsDNA de-hybridization at gold nanorods surface at temperature below (298 K) and above (333 K) the melting temperature of sequence investigated. We demonstrate that the cationic charges of surfactant, localized at nanorods surface, induce a remarkable de-hybridization of strands DNA, as confirmed by an increasing of hybridization enthalpy value of about 7 kcal/mol and by a faster de-hybridization process, respect the model of gold nanorods without positive charges. These data were corroborated by the increasing of the root mean square deviation value (about 4.4 Å, calculated at 333 K) indicating that the presence of cationic headgroup at gold surface induce separation of the double strand. This finding data paving the way for the development of nanostructured material for photothermal-triggered delivery systems of DNA for gene therapy application.Unveiling specific interactions between nanoparticles (NPs) and proteins could benefit a better control of NPs' performance in recognition-based detection, imaging and drug delivery. Herein, we investigated the specific recognition between an aptamer modified gold nanoparticle (Apt-AuNP) and its target protein arginine kinase (AK) through a coffee-ring effect (CRE)-based approach. The evaporated droplets of the Apt-AuNP with AK featured a ring-disk-ring transition with elevated AK concentration and a disk pattern was found when the Apt was saturated by AK. Moreover, the AK concentration versus ring thickness curve below the saturation point was proved to fit in an exponential function, indicating the strong association between the Apt-AuNP and AK. In contrast, the ring thickness above the saturation point fitted in a Gompertz growth model that was similar with the Apt-AuNPs incubated with the nonspecific protein (bovine serum albumin, BSA), suggesting that AK was nonspecifically adsorbed onto the AuNPs. The impact of the specific NP-protein interaction on the translation of CRE into macroscopic patterns was further utilized to identify target food allergen AK by the Apt-AuNPs over nontarget allergens (tropomyosin, ovalbumin and β-lactoglobulin).