Endocrinology

Living the Scientific Life (Scientist, Interrupted)

Category archives for Endocrinology

tags: House Finch, Carpodacus mexicanus, birds, mystery bird, bird ID quiz [Mystery bird] House Finch, Carpodacus mexicanus, photographed in a backyard in Houston, Texas. [I will identify this bird for you in 48 hours] Image: Joseph Kennedy, 28 March 2010 [larger view]. Nikon D200, Kowa 883 telescope with TSN-PZ camera eyepiece 1/640s f/8.0 at 1000.0mm…

tags: evolution, evolutionary biology, gynandromorph, bilateral gynandromorph bird, half-sider, mixed-sex chimaera, sex determination, molecular biology, genetics, developmental biology, endocrinology, birds, chicken, Gallus gallus, ornithology, researchblogging.org,peer-reviewed research, peer-reviewed paper, journal club Half-sider. Almost exactly one year ago, hundreds of American birders were thrilled by sightings and photographs of this remarkable Northern Cardinal, or Redbird, Cardinalis cardinalis,…

tags: researchblogging.org, endocrine disruptors, environmental pollutants, DDT metabolites, dichlorodiphenyltrichloroethane, birdsong, physiology, behavior European Starling, Sturnus vulgaris. Image: Gerd Rossen [larger view]. An elegant but disturbing paper was just published that documents that biologically relevant concentrations of endocrine disrupting pollutants are affecting the quality and quantity of song produced by male songbirds, which in turn, influences…

tags: Ask a Science Blogger, male birth control pill, contraceptive The human egg at the moment of fertilization. Image: National Museum of Health and Medicine. The newest “Ask a Science Blogger” question is; Why is there no birth control pill for men? I know that many women say that male birth control pills do not…

tags: researchblogging.org, osteocalcin, type 2 diabetes, obesity, bones, medicine Even though bones seem to be metabolically inactive structures, nothing could be further from the truth. In fact, bones are rebuilt constantly through the action of cells known as osteoblasts while old bone is destroyed by other cells known as osteoclasts. Bones also produce red and…

Human Pheromone Discovered

Researchers at the University of California at Berkeley found that women who sniffed androstadienone (pictured, left), a chemical found in male sweat, experienced elevated levels of cortisol, an important hormone, along with higher sexual arousal, faster heart rate and other effects.