Bias Dependence of Radiation-Induced Narrow-Width Channel Effects in 65 nm NMOSFETs

The bias dependence of radiation-induced narrow-width channel effects（RINCEs） in 65-nm n-type metal-oxidesemiconductor field-effect transistors（NMOSFETs） is investigated. The threshold voltage of the narrow-width65 nm NMOSFET is negatively shifted by total ionizing dose irradiation, due to the RINCE. The experimental results show that the 65 nm narrow-channel NMOSFET has a larger threshold shift when the gate terminal is kept in the ground, which is contrary to the conclusion obtained in the old generation devices. Depending on the three-dimensional simulation, we conclude that electric field distribution alteration caused by shallow trench isolation scaling is responsible for the anomalous RINCE bias dependence in 65 nm technology.

DNA methylation clocks for estimating biological age in Chinese cohorts

Epigenetic clocks are accurate predictors of human chronological age based on the analysis of DNA methylation(DNAm)at specific CpG sites.However,a systematic comparison between DNA methylation data and other omics datasets has not yet been performed.Moreover,available DNAm age predictors are based on datasets with limited ethnic representation.To address these knowledge gaps,we generated and analyzed DNA methylation datasets from two independent Chinese cohorts,revealing age-related DNAm changes.Additionally,a DNA methylation aging clock(iCAS-DNAmAge)and a group of DNAm-based multi-modal clocks for Chinese individuals were developed,with most of them demonstrating strong predictive capabilities for chronological age.The clocks were further employed to predict factors influencing aging rates.The DNAm aging clock,derived from multi-modal aging features(compositeAge-DNAmAge),exhibited a close association with multi-omics changes,lifestyles,and disease status,underscoring its robust potential for precise biological age assessment.Our findings offer novel insights into the regulatory mechanism of age-related DNAm changes and extend the application of the DNAm clock for measuring biological age and aging pace,providing the basis for evaluating aging intervention strategies.

Relationship between T-cell receptor α gene polymorphisms and symptomatic differences in patients with narcolepsy type 1

Background:Recent genome-wide association studies have identified an important role of T-cell receptor α(TRA) gene in the development of narcolepsy type 1.However,the role of TRA haplotype polymorphisms in the symptomatic diversity of narcolepsy remains unclear.This study aimed to investigate whether TRA polymorphisms can influence the symptomatic diversity of narcolepsy.Methods:Totally,903 patients with narcolepsy type 1 were included in the study.Patients were divided into different groups according to their symptoms.First,13 genotyped single nucleotide polymorphisms in the TRA were assessed for their association with symptoms of narcolepsy.We used the Chi-square test to determine differences in genotype frequencies in patients with narcolepsy.Further,we identified the haplotypes and variations of the TRA and tested their association with the symptoms of narcolepsy using a logistic regression model.Results:According to the results of the logistic regression,TRA haplotypes TG and CT were significantly associated with auditory hallucination,with odds ratios of 1.235 (95% confidence interval [CI],1.012-1.507) and 1.236 (95% CI,1.012-1.511),respectively (P < 0.05).Contusions:The patterns of haplotype in TRA (haplotypes TG and CT) are associated with hypnagogic auditory hallucination in patients with narcolepsy type 1.However,further studies are needed to confirm our results and explore the underlying mechanisms.