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Genital in Biological News

Genital stimulation opens door for cryptic female choice in tsetse flies

... snipping off parts of male genitalia and reducing genital sensation in both male and female tsetse flies, ... processleads to rapid evolutionary changes in genital structure and is probably influenced by the ... University of Costa Rica, Eberhard modified male genital structures by cutting off a tooth that is typical ...

Bacterial infections in premature babies more common than previously realized

... Drexel University College of Medicine found that genital mycoplasmas are a frequent cause of congenital ... have positive umbilical blood cultures for two genital mycoplasmas (bacteria lacking cell walls): ... than previously realized. The detection of genital mycoplasmas is not part of routine clinical ...

Potential new herpes therapy studied

... of the herpes virus causes cold sores or fever blisters around the mouth, genital herpes, a deadly but rare type of encephalitis, and keratitis, a scarring of the cornea that leads to vision loss. HSV-2 is the more common cause of genital herpes. Existing herpes treatments work because the active ingredients ...

How 'secondary' sex characters can drive the origin of species

... species or within the populations of species, natural selection maintains genital characters. But if these primary sex characters are linked to other ... to make new species than we thought," Moczek said. The notion that genital size is related to the origin of species is not new. But how they are ...

Male cyclists risk sexual problems if they don’t choose the right bike

... BJU International . He says that the problems to look out for include genital numbness, erection problems and soreness and skin irritations in the groin ... of male cyclists who have taken part in research studies have reported genital numbness. "Numbness is common because the pressure of the saddle can ...

UCSF researchers identify new drug target for Kaposi's sarcoma

... cause a variety of devastating illnesses, the researchers said. Those include mononucleosis (Epstein-Barr virus), shingles (Varicella zoster virus), genital herpes (herpes simplex), retinitis (cytomegalovirus) and cancer (Kaposi's sarcoma). While therapies exist for these viruses, they often have negative ...

New lab test offers better prediction of HIV microbicide safety

... infect circulating T cells. To test this theory, Pedro Mesquita, a postdoctoral fellow in Dr. Herold's lab, developed a model that mimicked the genital tract environment. It was composed of two chambers separated by a barrier of cultured human cells that form tight junctions. After treating the ...

NIH funds $9.5 million for research on HIV and the human innate immune system

... of oral complications, such as a quadrupled rate of contracting human papillomavirus (HPV). This virus is more frequently associated with the genital tract and is now being seen in the mouth. Warts produced by HPV can lead to cancer and increased oral infections. "What is resolving one ...

DNA barcoding of mosquito species deployed in bid to end elephantiasis

... can permanently damage the lymph system and kidneys, which results in fluid collecting and swelling in the arms, breasts, legs, and, for men, the genital area. The disease also makes it difficult for the body to fight germs and infections. Poor sanitation and rapid growth in tropical and ...

UTSA, Health Science Center collaborate with Merck & Co. to develop chlamydia vaccine

... for research to UTSA and the Health Science Center, whose collaborative team of researchers was the first to demonstrate that, in animal models of genital chlamydial infection, a vaccine composed of a select group of recombinant C. trachomatis antigens can successfully accelerate bacterial clearance, ...

Uncultured bacteria found in amniotic fluids of women who experience preterm births

... species may play a key role in initiating spontaneous preterm births," said Han. These bacteria either reach the placenta through the genital tract or through the blood to the placenta. Han suspects some originate in the mouth which has hundreds of dozens of bacteria present. Among the ...

Hairspray is linked to common genital birth defect, says study

... Women who are exposed to hairspray in the workplace during pregnancy have more than double the risk of having a son with the genital birth defect hypospadias, according to a new study published today in the journal Environmental Health Perspectives . The study is the first to ...

A card-swipe for medical tests

... says. "The same approach can be used to screen patients for other cancers or heart disease," Granger says. A rapid, card-reader test for genital or oral herpes could help reduce the number of Caesarean sections. If obstetricians suspect maternal herpes, they sometimes do C-sections to avoid ...

Imiquimod, an immune response modifier, is dependent on the OGF-OGFr signaling pathway

... compounds. Imiquimod (Aldara, R-837, S26308), the best characterized and most widely used, is highly efficacious in the treatment of external genital and anal warts, basal cell carcinoma, actinic keratoses, Kaposi's sarcoma, chronic hepatitis C infection, and intraepithelial carcinoma. Therefore, ...

American Society for Microbiology honors Walter Stamm

... Dr. Stamm has published over 300 peer-reviewed papers, about 100 book chapters, and 11 books, most of them about urinary tract infections and genital infections including the role of bacterial pathogenesis, antimicrobial susceptibility and resistance. From 1999 through 2000, Dr. Stamm was a ...

Primate's scent speaks volumes about who he is

... less genetically fit," Drea said. "And his sexual or social partners can know that." Female ringtailed lemurs have just one scent gland in the genital area, but their scent is more complex than the males'. Via scent, females may advertise not only their fertility, but the presence of a pregnancy and ...

Barnacles go to great lengths to mate

... sexual selection - competition with other males, female choice, sexual conflict between males and females - is not required to explain variation in genital form. In barnacles, this variation appears to be driven largely by the hydrodynamic conditions experienced under breaking waves. ...

Scientists decode genomes of diverse TB isolates

... investigators and a leading researcher of the XDR epidemic in KwaZulu-Natal, dean of the Nelson Mandela School of Medicine, and director of the MRC genital Ulcer Disease Research Unit at the University of KwaZulu-Natal. Genetic characterization of this strain is essential for developing tools to get this ...

Iowa State researchers develop technology for early detection of viruses

... headlines. In June of 2006, the U.S. Food and Drug Administration approved a vaccine developed to prevent cervical cancer, precancerous lesions and genital warts caused by four types of the virus. The vaccine has been approved for females ages 9 to 26. The Centers for Disease Control and Prevention ...

Mice help researchers understand chlamydia

... cells known as T-cells respond to infection. "When a person is infected with Chlamydia, the organism enters into the outermost cells of the genital tract and stays there and replicates within those cells. "Once they're hidden within the cells, only the T-cells can recognise that the cells are ...

American Chemical Society's Weekly PressPac - Oct. 10, 2007

... The test also has the potential for early identification of infection with other so-called DNA viruses, which cause a range of diseases that includes genital herpes and hepatitis. Their report is scheduled for the Nov. 1 issue of ACS Analytical Chemistry, a semi-monthly journal. In the study, Edward S. ...

Study by Pittsburgh researchers identifies possible vaccine target for chlamydia

... of Pediatric Infectious Diseases at Childrens, identified a plasmid-deficient strain of Chlamydia that, when investigated in an animal model of genital tract infection, failed to cause disease. Plasmids are small molecules of DNA. Results of their study are published in the Sept. 15 issue of the ...

Coral reef fish harbor an unexpectedly high biodiversity of parasites

... They live on gills of marine fish where they find both refuge and food. Identification of each taxon is facilitated by the morphology of the genital apparatus which is characteristic for each species. In 2006, researchers from the research unit Systmatique, Adaptation, volution (UMR 148) at ...

Warts vaccine -- 1 of many in pipeline

... treating the papillomaviruses responsible for genital warts was on target at the halfway mark, ... Frazer’s cervical cancer vaccine to treat genital warts. Professor Frazer said this vaccine ... available vaccines to prevent infections. genital warts are transmitted by skin contact and the ...

Scientists sequence genome of parasite responsible for common sexually transmitted infection

... and urination, irritation and itching of the genital area and, in rare cases, lower abdominal pain. In ... it attaches to cells lining the host's urinary or genital tract, it flattens out and begins to ingest the ... bacteria that may be present in the urinary and genital areas, including the bacteria necessary for ...

Anti-herpes treatment reduces HIV levels in women infected with both viruses

... can reduce the amount of HIV in the blood and genital secretions, according to the results of a trial ... virus (HIV) and the virus that causes genital herpes (HSV-2) in Burkina Faso. The results ... increase HIV-1 infectiousness by disrupting the genital mucosa and increasing the levels of HIV in ...

New measure of sexual arousal found for both men and women

... arousal corresponded with their physiological genital response; this challenges the common notion that ... trials of female sexual arousal disorder will be genital temperature as measured by thermography," ... "This is a huge breakthrough in the assessment of genital blood flow research in women's sexual health," ...

Research holds promise for herpes vaccine

... a new avenue for developing a vaccine against genital herpes and other diseases caused by herpes ... for producing an effective live vaccine against genital herpes," said Halford, who works in MSU's ... with HSV-1, the implications for HSV-2-induced genital herpes are clear. Overall the two viruses are ...

Vaccine shown effective against chancroid

... a sexually transmitted disease that causes genital ulcers, is rare in the United States but takes ... care, such as in Africa. Recent studies show that genital ulcer diseases such as chancroid can enhance HIV ... 10-fold. "There is considerable evidence that genital ulcers are independent risk factors for the ...

Knowledge of infection may prevent spread of herpes virus

... transmitting the virus that causes most cases of genital herpes could be cut in half by more testing and ... Seattle studied 199 patients with newly acquired genital HSV-2 infection and found that patients were ... to transmit the virus when they knew they had genital herpes and informed their sexual partners. ...

Teens unaware of sexually transmitted diseases until they catch one, Carnegie Mellon study finds

... of eight STDs: HIV/AIDS, chlamydia, gonorrhea, genital herpes, genital warts, hepatitis B, trichomoniasis and syphilis. ... of STDs. And the consequences are severe. genital herpes, for example, cannot be ....

Mass production of human papillomavirus could lead to gains against cervical cancer

... of sexually active men and women will acquire genital HPV infection at some point in their lives. By ... at least 80 percent of women will have acquired genital HPV infection. Although the infection is ... common, less virulent form of the virus causes genital warts. Using the new technique scientists can ...

Achilles heel of the herpes virus possibly found

... in the body, causing everything from recurrent genital blisters to sores around the mouth. Its ... that. An estimated 45 million Americans have genital herpes and millions more have the more visible ... The findings may help explain why the oral and genital herpes virus has such a successful track record: ...

IMF Launches World’s First DNA Database for Myeloma Patients

... biologists studying this field because genital shape ?morphology ?is one of the chief characters ... for about 20 years that the striking diversity of genital form results from post-mating sexual selection, ... fertilization toward males with a particular genital morphology has been largely responsible for the ...

Certain fish have a special mating preference

... biologists studying this field because genital shape ?morphology ?is one of the chief characters ... for about 20 years that the striking diversity of genital form results from post-mating sexual selection, ... fertilization toward males with a particular genital morphology has been largely responsible for the ...

MUHC investigators search for the root of sexual pain in women

... allow the team to initiate research with groups of women that suffer from genital pain associated with menopause--one of the most common forms of ... to avoid and fear vaginal penetration more than women suffering from other genital pain disorders," noted Dr. Binik. "A better understanding of the specific ...

AIDS expert says global strategy needed to combat feminization of HIV/AIDS

... to HIV among young women, is believed to be due to an immature genital whose mucosal lining is easier for the virus to penetrate; to hormonal ... high incidence of sexually transmitted diseases, which inflame the female genital area and provide additional target cells for the virus to infect. Quinn ...

Study shows continued success for new HPV vaccine against virus responsible for cervical cancer

... cause about 70 percent of all cases of cervical cancer. It also targets HPV types 6 and 11, which together cause about 90 percent of all cases of genital warts. Researchers at more than a dozen international medical centers evaluated the efficacy of quadrivalent vaccine targeting HPV types 6, 11, ...

Herpes infection may be symbiotic, help beat back some bacteria

... virus. Vaccines are currently in use or in clinical trials for several disease-causing strains of herpes. Human herpes viruses include oral and genital herpes, the chickenpox virus, cytomegalovirus, Epstein-Barr virus and Kaposi's sarcoma-associated herpes virus. During an initial period of acute ...
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