Today several millions polymorphic sites in human genome are well described. Many investigators are studying the association between these polymorphisms and susceptibility to multifactorial traits. These polymorphisms are also used for studying the population's genetic structures. Here, we introduce a new simple one step method for estimating the allelic frequency of polymorphic sites in pooled samples. The method is based on measurement of the intensity of polymorphic bands on agarose gel electrophoresis. This method is very simple, rapid, inexpensive, and is more sensitive compared to the chip-based matrix-assisted laser desorption/ionization time-of-flight mass spectrometry method.
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http://dx.doi.org/10.1016/j.gene.2019.04.003 | DOI Listing |
BMC Microbiol
January 2025
The Marine Science Institute, College of Science, University of the Philippines Diliman, Quezon City, Philippines.
Background: The observed growth variability of different aquaculture species in captivity hinders its large-scale production. For the sandfish Holothuria scabra, a tropical sea cucumber species, there is a scarcity of information on its intestinal microbiota in relation to host growth, which could provide insights into the processes that affect growth and identify microorganisms with probiotic or biochemical potential that could improve current production strategies. To address this gap, this study used 16 S rRNA amplicon sequencing to characterize differences in gut and fecal microbiota among large and small juveniles reared in floating ocean nurseries.
View Article and Find Full Text PDFNutr Rev
January 2025
Department of Public Health, School of Public Health, Asrat Woldeyes Health Science Campus, Debre Berhan University, Debre Berhan, Ethiopia.
Context: Inconsistent results have been reported regarding the prevalence of and factors associated with formula feeding in Ethiopia.
Objective: This study aimed to determine the pooled prevalence of and factors associated with formula feeding among mothers with infants 0-6 months of age in Ethiopia.
Data Sources: A comprehensive systematic search was conducted across 3 databases (PubMed, EMBASE, and ScienceDirect) and the Google Scholar search engine to identify relevant studies published up to April 2, 2024.
Geroscience
January 2025
Dept. of Bioinformatics, Semmelweis University, 1094, Budapest, Hungary.
Age-related cognitive impairment and dementia pose a significant global health, social, and economic challenge. While Alzheimer's disease (AD) has historically been viewed as the leading cause of dementia, recent evidence reveals the considerable impact of vascular cognitive impairment and dementia (VCID), which now accounts for nearly half of all dementia cases. The Mediterranean diet-characterized by high consumption of fruits, vegetables, whole grains, fish, and olive oil-has been widely recognized for its cardiovascular benefits and may also reduce the risk of cognitive decline and dementia.
View Article and Find Full Text PDFAnimals (Basel)
December 2024
Department of Companion Animal Clinical Science, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand.
In total, 126 tissue-pooled samples were collected from suspected sick chickens showing signs of stunted growth, weakness, and diarrhea in five provinces/cities in Northern Vietnam. The Gyrovirus gala 1 (GyVg1) genome was detected in 26 (20.63%) of the 126 chicken samples based on a polymerase chain reaction assay.
View Article and Find Full Text PDFGenome Res
January 2025
The Walter and Eliza Hall Institute of Medical Research, University of Melbourne, Amsterdam UMC, Cancer Center Amsterdam
Single-cell long-read sequencing has transformed our understanding of isoform usage and the mutation heterogeneity between cells. Despite unbiased in-depth analysis, the low sequencing throughput often results in insufficient read coverage thereby limiting our ability to perform mutation calling for specific genes. Here, we developed a single-cell Rapid Capture Hybridization sequencing (scRaCH-seq) method that demonstrated high specificity and efficiency in capturing targeted transcripts using long-read sequencing, allowing an in-depth analysis of mutation status and transcript usage for genes of interest.
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