Another must read for anyone entering the biological sciences..! A great medical history book that really gives an insight into the human fight against the Poliovirus that left children permanently disabled, and sometimes in an iron-lung. This book brings home the torment suffered by children and parents alike during the desperate search for a prevention throughout the decades of the last century.
Archive for Medical Research
Proper discussion and research on female sexuality and in particular, female ejaculation has been a long time coming. Female ejaculation is often dismissed as myth and mainly attributed to loss of bladder control at the time of orgasm. This is of course still true for some cases, but not all.
Laboratory analysis of fluid expelled from a small group of females who claim to experience female ejaculation tells a different story. A recent report, Everything you always wanted to know about female ejaculation (but were afraid to ask) in New Scientist describes how researchers found significant quantities of the protein prostate-specific antigen (PSA) present in in the fluid. Prostate cells in the male prostate gland produce PSA which is present in serum and semen.
Ultrasounds of the women who experienced female ejaculation showed evidence of a structure surrounding the urethra that is similar to the male prostate gland. The area of the female prostate is located near the G-Spot and is most sensitive to sexual arousal. It appears that stimulating the G-Spot also stimulates the female prostate resulting in ejaculation.
According to the article, Fart molecule could be next Viagra published in New Scientist, rats injected with an enzyme that produces hydrogen sulfide in human penises caused erections in the randy little critters. Hydrogen sulfide (H2S) smells like bad flatulance and rotten eggs.
Hydrogen sulfide relaxes blood vessels in the same way as Nitric oxide (NO). Erections occur because the arteries relax and allow blood to flow into the erectile tissue (corpora cavernosa).
What will they come up with next?
A recent UK Independent article Masturbation can be good for the over-50s, reported on a study published in the British Journal of Urology International that showed a link between masturbation and increased risk of prostate cancer. The study examined the sexual habits of men diagnosed with prostate cancer under the age of 60 against a control group. Younger men engaging in sexual activity (sex and masturbation) at least 20 times a month appear to be at an increase risk of prostate cancer. Interestingly, the risk decreased in men over 50 who engaged in sexual activity at least 10 times a month.
The researchers have no explanation as to why masturbation, as opposed to sexual intercourse, is a marker for increased risk of prostate cancer. Seems like men of any age should just relax and enjoy themselves…by themselves or otherwise.
Once again we witness a disturbing account of people’s distrust of science. Although childhood immunizations have revolutionized public health by decreasing rates of childhood diseases like measles, there is a backlash among opponents who claim that the MMR vaccine causes autism. The New York Times article, Book Is Rallying Resistance to the Anti-vaccine Crusade, describes how Paul A. Offit, author of Autism’s False Prophets receives death threats and Dr. Gregory A. Poland, chief of vaccine research at the Mayo Clinic, receives threats against his children. Dr Paul A. Offit’s book discusses the scientific evidence in favor of vaccines.
According to a National Institute of Child Health and Human Development report, Why do people think that vaccines can cause autism?, the fear concerning the connection between autism and the MMR vaccine stems from a study that did not use scientific testing to show evidence of a link.
The proliferation of the anti-vaccine movement should not surprise us since people prefer to listen to celebrities who appear on Oprah and other talk shows rather than Pediatricians such as Paul A. Offit or Chief of Vaccine research, Gregory A. Poland.
Two recent reports, Funding Halted for Stem Cell Research and MPs to Investigate Stem Cell Funding Row published in the UK Independent newspaper report that British MPs are to investigate the mysterious denial of grants to two out of three licensed scientists licensed to produce hybrid embryos for creating and researching stem cells. The lack of funding threatens the UK’s stand as a leader in stem cell research. The Medical Research Council, Biotechnology and Biological Sciences Research Council have not stated a reason for denying the funding to the scientists. The denial of funding aroused suspicion among researchers about the motives behind the lack of funding suggesting a “moral” nature rather than a scientific basis for the organizations’ denials. The lack of funding is curious in light of the fact that Prime Minister Gordon Brown and David Cameron heavily supported the Human Fertilisation and Embryology Bill in May 2008. It will be interesting to see what the investigation reveals.