Jan
11
2010
As shown in these ancestry paintings from 23andMe, the proportion of African DNA can vary widely for African Americans.
A recent study led by Carlos Bustamante of Cornell and Sarah Tishkoff of the University of Pennsylvania has shown that genetically speaking, African American can mean a lot of different things.
The researchers and their co-workers analyzed DNA [...]
Tags: Africa, African American, pharmacogenomics, PNAS
Sep
30
2009
Inflammatory bowel disease (IBD), which can appear as either ulcerative colitis or Crohn’s disease, damages the lining of the digestive tract and leads to abdominal cramps, incomplete digestion and nutritional deficiencies.
Previous research on IBD gave researchers reason to suspect that the CD39 gene, which is involved with inflammatory responses and immunity, may play a role [...]
Tags: PNAS, rodent, ulcerative colitis
Sep
24
2009
Glaucoma is the second leading cause of blindness and is estimated to affect over 66 million people worldwide. This group of diseases is typically caused by increased pressure in the eye, which slowly damages the optic nerve and leads to gradual vision loss and eventual, incurable blindness if left untreated.
Tags: African, glaucoma, PNAS, primary open-angle glaucoma
Sep
01
2009
Although environment plays a major part in addiction — you can’t get hooked on something you’ve never tried — genetics plays a substantial role in determining whether a person who does use a drug will become addicted to it.
A few DNA variations have been identified that seem to increase the odds a person will become [...]
Tags: addiction, alcohol, cocaine, marijuana, nicotine, opiates, PKNOX2, PNAS, substance dependence
Aug
13
2009
SNPwatch gives you the latest news about research linking various traits and conditions to individual genetic variations. These studies are exciting because they offer a glimpse into how genetics may affect our bodies and health; but in most cases, more work is needed before this research can provide information of value to individuals. For that [...]
Tags: emotional, morphine, opioid receptor, pain, physical, PNAS, rejection, UCLA
Jun
12
2009
SNPwatch gives you the latest news about research linking various traits and conditions to individual genetic variations. These studies are exciting because they offer a glimpse into how genetics may affect our bodies and health; but in most cases, more work is needed before this research can provide information of value to individuals. For that [...]
Tags: immune system, PNAS, sepsis, TIRAP
May
14
2009
Mexican flu virus genetics has been much in news lately; how about a look at Mexican human genetics for a change? A new article from researchers at Mexico’s National Institute for Genomic Medicine (INMEGEN) examines genetic diversity across the nation, and argues that, in order to conduct studies of common genetic diseases efficiently, a Mexico-specific genetic reference database should be [...]
Tags: admixture, GWAS, haplotype, HapMap, Mestizo, Mexico, PNAS
Aug
04
2008
This guest post is by Brenna Henn, a doctoral student in Stanford University’s Department of Anthropology and a 23andMe consultant. Brenna studies human evolution using genetic information. Her interests include the origin of modern humans, migration patterns among African groups, and genetic models of demography.
A Nilotic-speaking pastoralist from Tanzania / Sarah A. Tishkoff [...]
Tags: Africa, migration, pastoralism, PNAS, Stanford, Tanzania, Y-chromosome