July
2008
HEALTH CENTRAL DAILY MONDAY 7th JULY
Major rise in Caesarean sections linked to impaired womb function with age
The findings come from an analysis of a large body of Scottish data performed by a team under Professor Gordon Smith, at the University’s Department of Obstetrics and Gynaecology.
Scientists discover how an injured embryo can regenerate itself
However, the other ‘back’ (dorsal) half that develops into its head, brain and spinal cord, continues to grow, regenerating the missing belly half and develops into a complete, though be it smaller, fully functional embryo. Spemann then conducted another experiment, where this time, he removed a few cells from the back half of one embryo and transplanted them into the belly half of a different embryo. To his surprise, this gave rise to a Siamese twin embryo where an extra head was generated from the transplanted cells. Moreover, although the resulting embryo was smaller than normal, all its tissues and organs developed in the right proportions irrespective of its size, and functioned properly. For this work, Spemann received the Nobel Prize in Physiology or Medicine in 1935.
A noisy brain is a healthy brain
Intuitive notions of brain-behaviour relationships would suggest that this brain noise quiets down as children mature into adults and become more efficient and consistent in their cognitive processing.
But new research from the Rotman Research Institute at Baycrest, published in the July 4, 2008 issue of the Public Library of Science - Computational Biology, overturns this notion.
Screening athletes for heart disorders would save lives
The findings show that a pre-participation screening programme, which involves checking the activity of the heart during exercise, would detect more athletes at risk of sudden cardiac death and save lives, say the authors.
One young competitive athlete dies every three days from an unrecognised cardiovascular disorder in the United States alone.
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