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Hormone-based blood pressure pill possible

Date: 4.4.2007 

The Mayo Clinic scientists said the study supports the feasibility of developing a peptide-based drug that can be given in pill form to lower blood pressure and that is based on a hormone originating in the heart, called B-type natriuretic peptide. Our formulation of an oral peptide is a technological accomplishment that really can advance the field," said Dr. John Burnett Jr., director of the Mayo Clinic's Cardiorenal Research Lab, who led both studies. "Prior to this, it was unheard of that a peptide could be given orally because it is so rapidly degraded by stomach enzymes. Yet we overcame this significant constraint. This is the first report demonstrating that a peptide -- in this case, BNP -- can be developed by innovative technology to be absorbed orally.".... Whole article: "www.sciencedaily.com":[ http://www.sciencedaily.com/upi/index.php?feed=Science&article=UPI-1-20070402-08285000-bc-us-peptides.xml]

Scientists Develop Artificial Blood - Scientists from the University of Sheffield are developing an artificial 'plastic blood´, which could act as a substitute for real blood in emergency situations Because the artificial blood is made from a plastic, it is light to carry and easy to store Donated blood has a relatively short shelf-life of 35 days, after which it must be thrown away The artificial blood is made of plastic molecules that hold an iron atom at their core, just like haemoglobin, that can bind oxygen and could transport it around the body Whole article ScienceDaily (16.5.2007)

Blood made suitable for all - Scientists have discovered enzymes that can efficiently convert blood groups A, B and AB into the 'universal' O group — which can be given to anyone but is always in short supply The two novel glycosidase enzymes were identified in bacteria by an international team led by Henrik Clausen of the University of Copenhagen in Denmark The ABO blood-type system is based on the presence or absence of the sugar-based antigens 'A' and 'B' on red blood cells Whole article: www (3.4.2007)

Mayo Clinic Study Shows Drug-Eluting Stent Use in Heart Patients Determined More by Insurance Type, Hospital Location than Medical Condition - If you want the best technology available to relieve blocked blood flow to the heart, the choice is a drug-eluting stent In fact, if you are a heart patient seeking care in an urban center, or a center in the northeastern United States, you are twice as likely to receive a drug-eluting stent than would a patient with the similar medical condition seeking care in a rural or Midwest hospital Whole article: www (28.3.2007)

Irregular Heartbeat Linked to Genetic Mutation, Mayo Clinic Study Shows - Every day for 10 years, a seemingly heart-healthy 53-year-old woman experienced rapid and irregular heartbeats For the patient in this case study, her symptoms first appeared 10 years ago and they persisted through the years As a next step, Mayo Clinic physician researchers explored and confirmed the presence of a genetic mutation that clearly established an inherited predisposition to atrial fibrillation Their study findings appear in the February issue of Nature Clinical Practice Cardiovascular Medicine (http://www "Why certain patients develop atrial fibrillation while others do not, despite comparable environmental stress exposure, might ultimately depend on their genetic makeup," the authors write Atrial fibrillation is recognized more often in the elderly who have underlying structural heart disease The Mayo Clinic study is the first to identify an atrial fibrillation-associated genetic mutation of the ATP-sensitive potassium (KATP) channel Whole article: www (27.2.2007)

Mayo Clinic Discovers New Type of Sleep Apnea - Researchers at Mayo Clinic have identified a new type of sleep apnea they call "complex sleep apnea The two previously known types of sleep apnea include obstructive sleep apnea and central sleep apnea Patients with complex sleep apnea at first appear to have obstructive sleep apnea and stop breathing 20 to 30 times per hour each night "All of us in our sleep lab have observed for years that there are patients who appear to have obstructive sleep apnea, but the CPAP doesn't make them all that much better -- they still have moderate to severe sleep apnea even with our best treatment and subjectively don't feel they're doing very well," says Timothy Morgenthaler, M The study involved a retrospective review of 223 patients consecutively referred to the Mayo Clinic Sleep Disorders Center over one month, plus 20 consecutive patients diagnosed with central sleep apnea They also discovered that males have a higher tendency to have complex sleep apnea According to Dr Source (6.9.2006)

 


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