Molecular Biology News and Research

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Molecular biology is the study of biology at a molecular level. The field overlaps with other areas of biology and chemistry, particularly genetics and biochemistry. Molecular biology chiefly concerns itself with understanding the interactions between the various systems of a cell, including the interactions between DNA, RNA and protein biosynthesis as well as learning how these interactions are regulated.

Obstructive sleep apnea increases risk of heart and vascular disease

Obstructive sleep apnea, or periodic interruptions in breathing throughout the night, thickens sufferers' blood vessels. Moreover, it increases the risk of several forms of heart and vascular disease.

4 May 2009

Research advances understanding of Darwinian evolution

As described in an article published this week in an advance, online edition of the journal Proceedings of the National Academy of Sciences (PNAS), the work demonstrates some of the classic principles of evolution.

29 Apr 2009

New understanding of 3D structure of bacterial secretion proteins

New details of the composition and structure of a needlelike protein complex on the surface of certain bacteria may help scientists develop new strategies to thwart infection.

26 Apr 2009

Discovery of ion channel turns ear on its head

Scientists thought they had a good model to explain how the inner ear translates vibrations in the air into sounds heard by the brain.

23 Apr 2009

Mitochondrial peptide Humanin linked to neuronal cell survival and regulation of glucose metabolism

Recent studies have shown that the mitochondrial peptide Humanin (HN) protects against neuronal cell death such as happens in Alzheimer's disease.

22 Apr 2009

Mouse model provides a new tool for investigating Wolf-Hirschhorn syndrome

Wolf-Hirschhorn Syndrome (WHS) is a human disease caused by spontaneous genetic deletions.

22 Apr 2009

New information on molecular biology of KRas protein

KRas is one of the usual suspects in cancer. It is a protein that is mutated in 30% of human tumors and has been implicated in the regulation of many cell signalling pathways.

20 Apr 2009

Is metabolic character different between men and women with gallstone disease?

There are a cluster of metabolic syndrome, that include obesity, high level of fasting plasma glucose, hypertriglyceridemia and hypertension, which is closely associated with the increased morbidity and mortality caused by several of the most common diseases including diabetes, hypertension, cardiovascular diseases, cancer and gallstone disease.

20 Apr 2009

Humanized mouse infected with HIV vaginally and rectally allows testing

The "humanized mouse" developed by Dr. J. Victor Garcia-Martinez has allowed the University of Texas Southwestern physician-scientist to conduct HIV/AIDS studies that would have been impossible without such a small animal model of HIV infection.

20 Apr 2009

DNA biosynthesis discovery could lead to better antibiotics

Combating several human pathogens, including some biological warfare agents, may one day become a bit easier thanks to research reported by a University of Iowa chemist and his colleagues in the April 16 issue of the journal Nature.

16 Apr 2009

New nucleotide could revolutionize epigenetics

Anyone who studied a little genetics in high school has heard of adenine, thymine, guanine and cytosine - the A,T,G and C that make up the DNA code.

16 Apr 2009

Molecule Thymosin beta-4 prompts damaged heart cells to repair themselves after a heart attack

A protein that the heart produces during its early development reactivates the embryonic coronary developmental program and initiates migration of heart cells and blood vessel growth after a heart attack, researchers at UT Southwestern Medical Center have found.

14 Apr 2009

Scientists uncover mimicry at the molecular level that protects genome integrity

The new study, which was published on April 12, 2009, in an advanced online edition of the journal Nature Structural & Molecular Biology, draws new parallels between the Rad60 DNA repair factor and SUMO, a small ubiquitin-like modifier, which are both essential for maintaining genome stability during replication.

13 Apr 2009

Colon cancer shuts down receptor that could shut it down

Though a high-fiber diet has long been considered good for you and beneficial in staving off colon cancer, Medical College of Georgia researchers have discovered a reason why: roughage activates a receptor with cancer-killing potential.

13 Apr 2009

Small RNAs can play critical roles in male infertility/contraception

University of Nevada School of Medicine scientists in the Department of Physiology and Cell Biology have discovered insight into the reproductive workings of the male sex chromosome that may have significant implications for male infertility and contraception.

12 Apr 2009

Researchers model 3D structures of proteins that control human clock

In an Early Edition issue of The Proceedings of the National Academy of Sciences (PNAS) on April 9, 2009, the researchers report that they have been able to determine the molecular structure of a plant photolyase protein that is surprisingly similar to two cryptochrome proteins that control the "master clock" in humans and other mammals.

12 Apr 2009