Proteins that bind to sperm offer clues to male fertility and possible male contraception
...E2 family are secreted in the epididymis, a coiled tubular network several yards long attached to the top of each testicle. As they mature, sperm pass through the epididymis and into another tube, the vas deferens, before emptying through the urethra during ejaculation. Compared to the testes, the epididymi...Zebrafish's powerful heart gene could lead to transplant therapy
...nd humans, arevertebrate - having a backbone and a tubular nervous system divided into thebrain and spinal cord - and are therefore more likely to be genetically similarto humans than non-vertebrate models such as yeast, roundworms and fruit flies(even though the latter have provided valuable information abo......perm in threespecialized storage organs (the long, tubular seminal receptacle and twomushroom-shaped spermatheace) and using it as needed to fertilize eggs. However, the odds of becoming a father aren't equal for all the males: the lastfruit fly to mate with the female tends to sire the most offspring. ...Tightly Controlled Protein Destruction Drives The Cell Cycle
...erred to as ubiquitin-mediatedproteolysis, a large tubular enzyme called a proteosome recognizes theprotein-ubiquitin pairing and destroys the protein while releasing the ubiquitinto be used again. The destruction of the metaphase proteins frees the cell tocontinue to the anaphase step in the cell cycle. Cu......mpair renal blood flow, and temporarily reduce the tubular function of the kidney. These investigators wante...enal hemodynamics and large transient reduction of tubular function in both kidneys. They believe that their data suggests SWL-induced injury releases a subst...