Oct
16
2009
Previously in The Spittoon, we discussed two papers that identified genetic variants associated with hemoglobin levels in circulating blood.
But blood consists of much more than hemoglobin, and it is responsible for much more than just transporting oxygen. This week Nature Genetics published the results of two of the largest blood studies to date, which together [...]
Tags: blood, coronary artery disease, Hb, Hct, human evolution, MCH, MCV, MPV, Nature Genetics, PLT, RBC
Apr
15
2009
Over the past decade, there has been no shortage of studies focused on the relationship between Neanderthals and our own species, Homo sapiens. Researchers have dug deep into the fossil record and our genomes to uncover how closely related we are to the Neanderthals, whether we interacted with them, and even whether our two species [...]
Tags: Europe, genetics, Homo sapiens, human evolution, neanderthal
Mar
06
2009
Throughout the course of human evolution, there have been plenty of firsts. Small changes in our genetic code have laid the groundwork for our bipedal gait, our large brains, and our ability to speak complex languages.
There are countless genes throughout the human genome that distinguish us from our evolutionary relatives; now scientists have [...]
Tags: Crohn's disease, human evolution, IRGM
Jul
22
2008
Last week in the Spittoon we reported on a new study that identified an interesting genetic trade-off — a genetic variant known that has one effect on a person’s vulnerability to malaria, and the opposite on susceptibility to HIV infection. The “Duffy negative” version of the gene, which is common among Africans and African Americans, [...]
Tags: diet, hemochromatosis, human evolution, Malaria, sickle-cell anemia