Wednesday, March 23, 2011

The Stress and Alopecia Link

Stress and Alopecia: Answers from an Academic Lab

Stress and Alopecia have often been linked to each other, although the reason of their association has never been clearly understood. Recent results from a new study at Geffen Medical School (UCLA) highlight the possible molecular mechanisms underlying this association. The findings were made on mice but it is hoped that they can lead to new cures for human Alopecia.

Professor Milion Mulugeta and his team of collaborators at Geffen Medical School, in UCLA, were investigating a link between stress and ailments in the gastrointestinal tract. The researchers were working on four types of genetically engineered mice producing in exceeding quantity a molecule called CRF or Corticotropin Release Factor, an hormone linked to stress.

As a consequence of the modification introduced through genetic engineering, the mice began to lose hairs on their back till becoming affected by Alopecia. The main aim of the Researchers was to investigate the role of Astressin B, an inhibitor of the stress hormone Corticotropin Release Factor or CRF.

Initially the doses of Astressin B administered to mice didn't produce any measurable effect. Therefore they kept administering daily doses of it for five consecutive days. After three months, the mice
not only didn't show  anymore signs of stress but also regained completely their hairs. Alopecia had definitely abandoned them and their hairs kept growing numerous and healthy.

The molecule called Corticotropin Release Factor or CRF is also expressed on human skin and scalp with few peptides important for modulating its activity. The scientists will try now to understand if A-stressin B will work on human Alopecia too. The team seems very optimistic about it at the point to file for a patent to protect their discovery.

To know more, visit:

http://it.notizie.yahoo.com/blogs/focus/unarma-in-pi-nella-lotta-alla-calvizie-p5785.html
http://www.focus.it/Salute/domanda/E_davvero_efficace_il_farmaco_che_si_utilizza_per_far_ricrescere_i_capelli.aspx
http://en.wikipedia.org/wiki/Astressin-B

Sunday, March 13, 2011

Latest News on Immunity and Cancer

Immune System and Cancer: New discoveries could lead to new directions in Cancer Research.

It's usually believed that a depressed immune system can be at the base of a number of ailments and diseases, including Cancer. But recently, results obtained by a group of Scientists in the UK and Italy seem to contradict this highly shared opinion in Medicine.

The Scientists at the University of Bristol in the UK and at the Institute of Molecular Oncology in Milan, Italy, carried out their studies on Zebrafish, an organism maintaining many of the molecular and cellular components responsible of tumor formation in Mammals.

The results obtained by them seem to suggest that early-stage cancers are less likely to spread if the fighters of the Immune System, the white blood cells, are prevented from contacting cancer cells. In other words, immune cells could provide some type of growth signal for cancer precursor cells. So the cancer could co-opt the innate Immune Defence System to aid its own growth.

Using different methods to block the Immune System of the animal so to inhibit migration of immune cells to the cancer site, they always obtained the same result: a reduction in the number of cancer cells.

These results seem to lead to view Cancer formation and spreading through radically new 'eyes'.
What does the Future in Cancer Research hold on for us?
We'll see!!!

Sources:
http://www.reuters.com/news/video/story?videoId=169609172
http://insciences.org/article.php?article_id=9724
http://www.healthberth.com/2010/12/zebrafish-paves-way-for-new-cancer.html
http://healthmad.com/conditions-and-diseases/new-discoveries-in-cancer-research-could-lead-to-new-directions-in-cancer-cure/