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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Researchers discover key reason why pyrazinamide shortens duration of TB therapy

Pyrazinamide has been used in combination with other drugs as a first-line treatment for people with tuberculosis (TB) since the 1950s, but exactly how the drug works has not been well understood.

12 Aug 2011

Blood test early in pregnancy to detect baby’s gender

While carrying the child, a mother's blood has cell-free fetal DNA floating around in it, and it's possible to use this to test for the baby's sex. In a meta-analysis that covered more, the test was found to be 95% efficient in guessing the sex of the fetus — and it works from as early as seven weeks. As the fetus and the placenta develop, the amount of DNA present in the mother increases, boosting the accuracy of the test, which hits its peak at 20 weeks.

12 Aug 2011

SIGMAR1 gene mutation associated with development of juvenile ALS

Researchers from the Kingdom of Saudi Arabia have identified a mutation on the SIGMAR1 gene associated with the development of juvenile amyotrophic lateral sclerosis.

12 Aug 2011

LifeCodexx, Sequenom partner to commercialize prenatal lab testing services in Europe

Sequenom, Inc., a life sciences company providing innovative genetic analysis solutions, today announced it has partnered with LifeCodexx AG, a company focused on the development of clinically validated Next Generation Molecular Diagnostics, for the commercialization of prenatal laboratory testing services in Europe.

11 Aug 2011

Althea hosts Health and Wellness Fair for employees

Althea Technologies, Inc., a leading provider of development and manufacturing services for biotechnology and pharmaceutical companies, held its inaugural Health and Wellness Fair today.

11 Aug 2011

Scientists identify 29 new genetic variants linked to multiple sclerosis

Scientists have identified 29 new genetic variants linked to multiple sclerosis, providing key insights into the biology of a very debilitating neurological disease. Many of the genes -implicated in the study are relevant to the immune system, shedding light onto the immunological pathways that underlie the development of multiple sclerosis.

11 Aug 2011

Genetic culprit behind ovarian cancer discovered

A study has revealed that a single fault in a gene that normally helps the body to repair its DNA increases a woman's risk of ovarian cancer six-fold. One in every 11 women who carry the faulty gene is likely to develop ovarian cancer at some point in her life compared with a typical risk of about one in 70 for women in the general population, scientists said.

11 Aug 2011

Study suggests link between gene variant and Proteus syndrome

Orthopaedic surgeons from Children's National Medical Center are part of a team of researchers that has identified the genetic mutation causing Proteus syndrome, a rare disorder in which tissue and bone grow massively out of proportion.

11 Aug 2011

Aeras, OETC announce initiation of new TB vaccine Phase IIb trial in patients with HIV

Aeras and the Oxford-Emergent Tuberculosis Consortium (OETC) announce today the start of a Phase IIb proof-of-concept efficacy trial of a new investigational tuberculosis (TB) vaccine that involves people living with the human immunodeficiency virus.

11 Aug 2011

57 genes associated with multiple sclerosis

An international research team has found nearly 30 genetic risk factors that predispose to developing multiple sclerosis. It brings to more than 50 the total number of genetic clues to the disease. The research, published in Nature, will help identify risk factors and perhaps future treatments or even a cure, hopes the MS Society.

11 Aug 2011

Modified spider-silk proteins for nonviral gene delivery

Genetically engineered spider silk could help overcome a major barrier to the use of gene therapy in everyday medicine, according to a new study that reported development and successful initial laboratory tests of such a material. It appears in ACS' journal Bioconjugate Chemistry.

11 Aug 2011

Pink or blue – now find out at 7 weeks of pregnancy

Now a simple blood test can determine a baby’s sex as early as seven weeks into pregnancy and is highly accurate if used correctly. Experts believe this will have a great impact on parents concerned about gender-linked diseases and those who are merely curious, as well as people considering the more ethically controversial step of selecting the sex of their children.

10 Aug 2011

China Medical receives SFDA approvals for TOP2A and prostate cancer FISH detection kits

China Medical Technologies, Inc., a leading China-based advanced in-vitro diagnostic company, today announced that it has received approvals for its prostate cancer FISH detection kit and Topoisomerase 2-alpha FISH detection kit from the State Food and Drug Administration of the People's Republic of China.

10 Aug 2011

Cancer-causing fusion protein works by silencing tumor suppressor gene IL-2Rγ

Mariusz A. Wasik, MD, professor of Pathology and Laboratory Medicine, and Qian Zhang, MD, PhD, research assistant professor, both from the Perelman School of Medicine at the University of Pennsylvania, and their colleagues, found that a cancer-causing fusion protein works by silencing the tumor suppressor gene IL-2R common gamma-chain.

10 Aug 2011

TrovaGene regains ownership of worldwide rights to transrenal technology

TrovaGene, Inc., a developer of transrenal molecular diagnostics, confirmed today that it regained ownership of its worldwide rights and control over its patent estate for transrenal technology for non-invasive prenatal applications and cancer through the termination of a license agreement between TrovaGene and Sequenom, Inc.

10 Aug 2011

Noninvasive prenatal DNA test can detect fetus at risk for sex-linked disorders

As a noninvasive method of determining the sex of a fetus, tests using cell-free fetal DNA obtained from the mother's blood after 7 weeks gestation performed well, while urine-based tests appear to be unreliable, according to a review and analysis of previous studies, reported in the August 10 issue of JAMA.

10 Aug 2011

New genetic cause of retinitis pigmentosa

Combining the expertise of several different labs, University of Iowa researchers have found a new genetic cause of the blinding eye disease retinitis pigmentosa (RP) and, in the process, discovered an entirely new version of the message that codes for the affected protein.

10 Aug 2011