Navigation Links
Hormone reduces risk of heart failure from chemotherapy

Recent studies have shown that the heart contains cardiac stem cells that can contribute to regeneration and healing during disease and aging. However, little is known about the molecules and pathways that regulate these cells. Now, a new study utilizing a heart failure model is providing insight into one way to coax the cardiac stem cells into repairing the damaged heart. The research, published by Cell Press in the August 2011 issue of the journal Cell Stem Cell, finds that low doses of erythropoietin (EPO), a hormone best known for controlling the production of red blood cells, might reduce the risk of heart failure associated with some anticancer therapies.

Chemotherapy with doxorubicin (DOX) has been used effectively to treat a broad range of cancers but is limited because of severe side effects, most notably heart failure. Likewise, blocking STAT3, an important factor that drives tumor growth has been associated with heart failure. To learn more about the activity of cardiac stem cells under these conditions, senior study author, Dr. Denise Hilfiker-Kleiner from the Medical School Hannover in Germany, and colleagues studied cardiac stem cells in mice that were lacking the STAT3 gene in their hearts or were treated with DOX.

Dr. Hilfiker-Kleiner and colleagues observed that in both groups of mice, cardiac stem cells displayed an impaired ability to form new blood vessels which are essential for oxygen delivery to the heart muscle. Both sets of mice produced less EPO in their heart muscle than untreated controls. The researchers went on to demonstrate that EPO binds to cardiac stem cells and is required to maintain the signaling molecules necessary for production of new blood vessels. Importantly, when the mice were given a synthetic EPO derivative at a low dose which did not affect red blood cell production, stem cell differentiation to blood vessel cells was restored and cardiac function was preserved. "Short-term EPO administration at low doses seems an attractive avenue to pursue for protecting the heart during chemotherapy and might have broader applications in cardiac regeneration," concludes Dr. Hilfiker-Kleiner.


Contact: Elisabeth (Lisa) Lyons
Cell Press

Related medicine news :

1. Pioneering Hormone Therapist to Host Free Health Seminar
2. Hormone May Prevent Aggressive Breast Cancer
3. Bonding Hormone Might Help Some With Autism
4. WHI data confirm short-term heart disease risks of combination menopausal hormone therapy
5. Early On, Hormone Therapy May Raise Womens Heart Risks
6. Testicular Cancer Survivors May Have Hormone Deficiency
7. Stress hormone, depression trigger obesity in girls
8. Buy HGH Website Educates Consumers on the Pros and Cons of Human Growth Hormone Supplements
9. Hormone thought to slow aging associated with increased risk of cancer death
10. Hormone Outperforms Insulin in Diabetic Mice
11. High Hormone Level Linked to Cancer Death in Older Men
Post Your Comments:
(Date:11/26/2015)... ... November 26, 2015 , ... PRMA Plastic Surgery is updating their ... surgeons performed their 6,000th free flap breast reconstruction surgery! , “What an accomplishment for ... excited to rebuild lives and it’s an honor to have served all of these ...
(Date:11/26/2015)... (PRWEB) , ... November 26, ... ... online platform for mental health and wellness consultation, has collaborated with Women’s ... holistically address their reader’s queries on topics on mental and emotional well-being ...
(Date:11/25/2015)... ... 25, 2015 , ... As part of a global movement ... volunteers together who want to combine talents and resources to help create sustainable ... process. The non-profit launched its first major fundraiser on November 6, 2015 at ...
(Date:11/25/2015)... ... November 25, 2015 , ... Medical Solutions, one of the ... stellar workplace culture with the company’s Cincinnati office being named a finalist among ... was named a finalist in Cincinnati Business Courier’s 13th annual Greater Cincinnati Best ...
(Date:11/25/2015)... ... 2015 , ... Ministers, senior government and UN agencies, representatives ... of Excellence, and public R&D institutions, civil societies and other partners gathered today ... African Network for Drugs and Diagnostics Innovation, ANDI, Stakeholders Meeting. The three- day ...
Breaking Medicine News(10 mins):
(Date:11/26/2015)... 26, 2015 ... "Radioimmunoassay Market by Type (Reagents & ... Academics, Clinical Diagnostic Labs), Application (Research, Clinical ... 2020" report to their offering. ... addition of the "Radioimmunoassay Market by ...
(Date:11/25/2015)... global healthcare industry is expected to grow at a rate ... has the highest projected growth at 12.7%, and ... is second with growth projected at 11.5%. ... 2013-2014, total government funded healthcare was nearly 68%. Federal government ... 2013-2014. In real terms, out of pocket expenditure increased by ...
(Date:11/25/2015)... 2015  Linden Care, LLC, a retail specialty pharmacy ... patients suffering from chronic pain, said today that it ... Order (TRO) enjoining Express Scripts from unilaterally terminating the ... --> --> The company said ... options. --> --> ...
Breaking Medicine Technology: