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Tag: "control" at biology news

A gene's first 'kiss' sets off that affair known as puberty

...have probably yet to be identified in humans, help control GnRH release in primates." Besides learning that GPR54 and KiSS-1 are expressed inside the hypothalamus of primates at the time of puberty, the researchers also found that by giving animals kisspeptin they could, essentially wake up the reproductive...

Association of herpesvirus with lung disorder questioned

...ulmonary hypertension. All 22 were Japanese. For a control group, the scientists studied Kaposi's sarcoma tis...ertension, whereas the antigen was detected in the control group of Kaposi's sarcoma tissue samples. These data suggest that human herpesvirus 8 infection is ...

A new mechanism of regulating RNA degradation

...or cell biologists and clinicians who want to take control of gene expression in cells to create therapies to...eat disease. While cells have a variety of ways to control gene expression, the trick for players in this game is to recognize them amidst the incredibly compl...

FDA Approves Human Hookworm Vaccine for Phase I Safety Trials

...or cell biologists and clinicians who want to take control of gene expression in cells to create therapies to...eat disease. While cells have a variety of ways to control gene expression, the trick for players in this game is to recognize them amidst the incredibly compl...

Deficient DNA Repair Capacity Associated With Increased Risk Of Breast Cancer

...ty was lower in breast cancer patients than in the control subjects. Deficient DNA repair capacity was associated with a twofold increase in the risk of breast cancer. In addition, when the data were stratified into quartiles of DNA repair capacity, the risk of breast cancer was three times higher among wome...

University of Manchester makes made-to-measure skin and bones a reality using inkjet printers

...oare unable to grow large tissues and have limited control over theshape or size the tissue will grow to. It also allows more than onetype of cell to be printed at once, which opens up the possibility ofbeing able to create bone grafts."Using conventional methods, you are only able to grow tissues whichare a...

Protein discovery could unlock the secret to better TB treatment

...ch year from the disease. The top challenge for TB control in the European region is multidrug-resistant TB (MDR-TB). Eight per cent of the bacteria causing TB in patients are resistant to one or more drugs and one per cent show multidrug resistance. Left untreated, a person with infectious TB of the lungs i...

It's not all genetic: Common epigenetic problem doubles cancer risk in mice

..., Sweden, developed a set of mice missing only the control region for IGF2; their H19 gene was intact. These mice likely mimic the 30 percent of colon cancer patients and 10 percent or so of the human population who have loss of imprinting of IGF2. Only the Princeton mice have been crossed with the APC mice...

Poor prenatal nutrition permanently damages function of insulin-producing cells in the pancreas

...s. They separated the mothers into two groups. The control group ate as much chow as they wanted during the e...rth, their babies weighed 23 percent less than the control group. After delivery, all babies nursed and all mothers ate a full diet. "By the time the babies w...

Newly-discovered class of genes determines ?and restricts ?stem cell fate

...til the time is right. Understanding the molecular control of these genes has implications for therapies that involve tissue regeneration. The researchers found that Pax3, a gene critical in embryonic development of melanocytes ?cells that make and store the pigments in the skin and hair ?is also expressed ...

HIV Patients May Be at Risk of Heart Problems When Taking Protease Inhibitor Drugs

...he successful treatment of HIV viral infection and control of AIDS. But hopefully our findings will save lives by alerting the physician to yet another side effect associated with this class of drug." Dr. Ackerman is director of Mayo Clinic's Long QT Syndrome Clinic and Sudden Death Genomics Laboratory that...

Research on Worms Yields Clues on Aging

...s stimulated transmissionof signals in nerves that control body movement.Scientists previously had found genetic mutations in C. elegans thataffect both the nervous system and life span. The researchers usedthese mutant worms to further pin down the mechanism by which theanticonvulsants increased longevity.T...

Genome-wide mouse study yields link to human leukemia

...umor suppressor gene. Tumor suppressor genes help control cancer by identifying and getting rid of defective cells before they have a chance to mature and divide. When tumor suppressor genes lose that ability ?as they can if they are silenced through methylation or some other process, it gives cancer a chan...

Novel Enzyme Shows Potential As An Anti-HIV Target

...ccessfully put the brakes on HIV transcription and control the virus (See also “A New Paradigm in Eukaryotic Biology: HIV Tat and the Control of Transcriptional Elongation?/a>. ...

Scientists seek answers on what activates deadly anthrax spores

...r. "The potential importance of such a germination control mechanism in anthrax is clear, as spore germination and outgrowth are fundamental to proliferation." Claiborne, co-director of Wake Forest's Center for Structural Biology, added, "Basic understanding of the regulatory signals that promote germinatio...

Study finds more than one-third of human genome regulated by RNA

...ed by microRNAs. We nowknow that this type of gene control is much more widespread thanpreviously appreciated," says Whitehead Member and MIT professor ofbiology David Bartel.MicroRNAs interrupt a gene's ability to make protein. These tiny,single-stranded pieces of RNA are newcomers to biological research. I...

Marburg virus disease in Angola - update

...e, Holland and Spain) are assisting with infection control and establishing isolation facilities in Uige hosp...South Africa are providing assistance in infection control in Luanda, where training will be provided for health care staff from all provinces in the country. ...

NYU researchers simulate molecular biological clock

...ed by microRNAs. We nowknow that this type of gene control is much more widespread thanpreviously appreciated," says Whitehead Member and MIT professor ofbiology David Bartel.MicroRNAs interrupt a gene's ability to make protein. These tiny,single-stranded pieces of RNA are newcomers to biological research. I...

Novel Therapy Tested in Mice Could Chase Away Cat Allergies

...en into the windpipes of all the mice, including a control group that was not allergic to cats. GFD damped as... in the mice that received GFD were similar to the control group mice that were not allergic to cats. The molecule has the potential to prevent allergic react...

Yale Scientists Find MicroRNA Regulates Ras Cancer Gene

...nd Developmental Cell. The oncogene Ras is out of control in about 20 percent of cancers where it is over-ex...croRNAs, important regulators of development, that control processes determining cell type and cell death. "The let-7 microRNA regulates Ras by binding to the...

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