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Sex differences in gene expression in alveolar type 2 (AT2) cells may underlie sex biases in the prevalence and severity of lung diseases, according to a study led by University of Pennsylvania scient...
Within a given tissue or organ, cells may appear very similar or even identical. But at the molecular level, these cells can have small differences that lead to wide variations in their functions.
Genomic differences selected through evolution may offer clues as to why COVID-19 outcomes vary widely（图）
基因组差异 病毒学 COVID-19
2023/7/11
Though underlying medical conditions play an important role, many aspects of why COVID-19 severity can differ vastly from one person to another have remained unclear.
Genetic differences in eggshell ultrastructural properties of Saudi native chicken breeds kept at high ambient temperatures
eggshell strength egg quality mammilliary layer total score
2018/11/23
Egg quality and eggshell ultrastructural properties of four Saudi native chicken breeds were compared to detect genetic differences. A total of 480 laying hens at 28 weeks of age, representing four Sa...
Differences in genetic and environmental variation in adult BMI by sex, age, time period, and region: an individual-based pooled analysis of 40 twin cohorts
BMI adults genetics twins international comparisons
2018/11/15
Background: Genes and the environment contribute to variation in adult body mass index [BMI (in kg/m2)], but factors modifying these variance components are poorly understood.
Differences in Oviposition and Egg Quality of Various Genotypes of Laying Hens
layers genotype sequence time of collection egg quality
2018/3/5
The differences in egg production traits in six laying hen genotypes (brown-egg hens Bovans Brown, Bovans
Sperwer, ISA Sussex; white-egg hen Dekalb White; laying hens with tinted shells Moravia Barre...
IU biologists reveal how powerful 'master gene' regulates physical differences between sexes
IU biologists master gene physical differences sexes
2017/3/14
Physical differences between males and females in species are common, but there remains much to learn about the genetic mechanisms behind these differences.
New research by scientists...
Differences in Physicochemical and Nutritional Properties of Breast and Thigh Meat from Crossbred Chickens, Commercial Broilers, and Spent Hens
Crossbred Chicken Commercial Broiler Spent Hen Physicochemical Properties
2016/7/27
The objective of this study was to compare the physicochemical and nutritional properties of breast and thigh meat from commercial Chinese crossbred chickens (817 Crossbred chicken, 817C), imported co...
A New View of Brain Development:Scientists Uncover Striking Differences Between the Adult and Newborn Mouse Brain
Brain Development Scientists Striking Differences Adult Newborn Mouse Brain
2016/7/4
Columbia scientists have found that spikes in the activity of neurons in young mice do not spur corresponding boosts in blood flow — a discovery that stands in stark contrast to the adult mouse brain....
Study of genetic differences among Slovak Tsigai populations using microsatellite markers
Slovak Tsigai sheep microsatellite markers genetic relationship
2015/6/8
In this study genetic diversity, population structure and genetic relationships of Tsigai populations in Slovakia were investigated using microsatellite markers. Altogether 195 animals from 12 populat...
Differences in Voluntary Cow Traffic between Holstein and Illawarra Breeds of Dairy Cattle in a Pasture-based Automatic Milking System
Breed Voluntary Cow Traffic Automatic Milking System
2016/5/16
Automatic milking systems (AMS) rely upon voluntary cow traffic (the voluntary movement of cattle around a farm) for milk harvesting and feed consumption. Previous research on conventional milking sys...
Fatty acid and stable isotope biomarkers suggest microbe-induced differences in benthic food webs between depths
Fatty acid stable isotope biomarkers microbe-induced differences benthic food webs depths
2014/4/2
Benthic marine consumers inhabiting the subphotic zone rely on subsidies of energy synthesized by macrophytes and phytoplankton in the photic zone. The effects of this energy subsidy on the trophic ec...
New CU-Boulder study shows differences in mammal responses to climate change（图）
mammal small mammals
2014/3/18
If you were a shrew snuffling around a North American forest, you would be 27 times less likely to respond to climate change than if you were a moose grazing nearby.
DIFFERENCES IN THE REGULATION OF GROWTH AND BIOMINERALIZATION GENES REVEALED THROUGH LONG-TERM COMMON-GARDEN ACCLIMATION AND EXPERIMENTAL GENOMICS IN THE PURPLE SEA URCHIN
Climate change ecological genomics gene fl ow
2015/12/11
Across heterogeneous landscapes, populations may have adaptive differences in gene regulation that adjust their physiologies to
match local environments. Such differences could have origins in acclim...
A worldwide consortium of medical researchers and social scientists has found tiny changes to a person's genetic sequence are associated with educational level.