Obstetrics & gynaecology

Cesarean section may cause epigenetic changes

(Medical Xpress)—A new study from Karolinska Institutet indicates that the mode of delivery could make an imprint in the stem cells of the newborn infant. The finding may be of interest for understanding why individuals ...

Oncology & Cancer

Study identifies causes of cancer

A team of Yale-led researchers can now quantify the factors causing changes in the DNA that contribute most to cancer growth in tumors of most major tumor types.

Cardiology

Researchers find new strategy for preventing clogged arteries

Revving up a process that slows down as we age may protect against atherosclerosis, a major cause of heart attacks and strokes. In findings published online today in Proceedings of the National Academy of Sciences (PNAS), ...

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Molecular biology

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.

Writing in Nature, William Astbury described molecular biology as:

"[...]not so much a technique as an approach, an approach from the viewpoint of the so-called basic sciences with the leading idea of searching below the large-scale manifestations of classical biology for the corresponding molecular plan. It is concerned particularly with the forms of biological molecules and[...]is predominantly three-dimensional and structural—which does not mean, however, that it is merely a refinement of morphology. It must at the same time inquire into genesis and function."

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