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Does the Effect of Nanoparticles on Amino Acids Translate into a Risk for Consumers?

Posted: Published on June 12th, 2012

I am sure for the next few daysif not weeks and even yearsresearch out of Trinity College Dublin will be portrayed in the press and among some NGOs as "nanotechnology causes arthritis." Unfortunately, the story of the researchwhich was published in the journal Nanomedicineis a bit more complicated than that and the details will likely get lost in the furor that the initial headlines will generate. Basically, the researchers examined whether proteins when exposed to certain nanoparticles can change the amino acid arginine into the amino acid citrulline. This process known as post-translational citrullination of proteins has been linked to autoimmune diseases like rheumatoid arthritis. So maybe to avoid some confusion, it might be best to say from the outset that this research does not establish the risk of nanoparticles but only their potential hazard under very controlled (but unusual) circumstances. Further, despite what the press release may claim, I dont see how they have established much in the way of safety implications for the use and ultimate disposal of nanotechnology products and materials. Whenever I see a story about nanoparticles and toxicity, I immediately drag out my formula for understanding risk: Hazard x Exposure = Risk. When you consider … Continue reading →

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Heart disease and stem-cell treatments: caught in a clinical stampede

Posted: Published on June 12th, 2012

A few years ago, concerns over these heart trials were voiced by a Norwegian professor, Harald Arnesen. He concluded in 2007 that they are not convincing and that one German team had achieved striking results only because the control group in its trial had done particularly badly. Prof Arnesen called for a moratorium on this kind of stem-cell therapy. That still did not deter the clinicians. This January, another trial funded by the EU was announced the largest of all, with 3,000 heart-attack patients recruited from across Europe. The idea behind the trials is straightforward. During a heart attack, a clogged blood vessel starves heart muscle of oxygen. Up to a billion heart muscle cells, called cardiomyocytes, can be damaged, and the body responds by replacing them with relatively inflexible scar tissue, which can lead to fatal heart failure. So why not implant stem cells that can grow into cardiomyocytes? Stem cells, of course, come in many kinds: the embryonic variety have the potential to turn into all 200 cell types in the body. Adult stem cells, harvested from the patient, have a more limited repertoire: bone marrow stem cells generate blood cells, for example. So to claim, as was … Continue reading →

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Scientists grow living bone out of stem cells in bid to treat arthritis, osteoperosis and shattered limbs

Posted: Published on June 12th, 2012

By Daily Mail Reporter PUBLISHED: 07:22 EST, 11 June 2012 | UPDATED: 07:53 EST, 11 June 2012 Hope: The technique of growing new bones could one day be used to replace serious breaks and treat degenerative illnesses Scientists have successfully grown living bones in a laboratory using stem cells, in a technique that could in future be used to replace shattered limbs, treat osteoporosis and arthritis and fix defects such as cleft palate. The researchers took around a month to transform stem cells originally taken from fat tissue into sections of fully-formed bone up to several centimetres long. Standard bone grafts involve two procedures, to cut bone from elsewhere in the patient's body before transplanting it into the damaged area, which carry the risk of infection and complications. Bone can also be obtained from donations, but this brings the chance of rejection. The new method would allow bones to be custom made to shape outside the body, using the patients own stem cells, removing the need for a potentially traumatic operation and reducing the likelihood of rejection. So far the research has been carried out only on animals but a patient trial is planned for later this year. The Israeli … Continue reading →

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Prostatic Enlargement

Posted: Published on June 12th, 2012

By DR. GARY S. SY MANILA, Philippines --- Nearly every man over 40 has some degree of enlargement of the prostate gland, which slowly progresses throughout the aging process. The prostate gland is the male organ that produces semen, the milky-colored fluid that nourishes and transports sperm during ejaculation. It sits beneath your bladder and surrounds your urethra, the tube that drains urine from your bladder. When it becomes enlarged, the prostate can put pressure on your urethra and cause difficulty urinating. Most men have a period of prostate growth in their mid- to late 40s. At this time, cells in the central portion reproduce more rapidly, resulting in prostate gland enlargement. As tissues in the area enlarge, they often compress the urethra and partially block urine flow. Benign prostatic hyperplasia (BPH) is the medical term for prostate gland enlargement. Treatment of prostate gland enlargement depends on your signs and symptoms and may include medications, surgery, or non-surgical therapies. Prostate gland enlargement is not related to the development of prostate cancer. Prostate gland enlargement varies in severity among men and doesnt always pose a problem. Only about half the men with prostate gland enlargement experience signs and symptoms that become … Continue reading →

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Erection problems

Posted: Published on June 12th, 2012

Heart to Heart Talk By Philip Chua Cebu Daily News Diminished or ineffective erection in man causing inability to have a successful intercourse 75 percent of the time is medically termed erectile dysfunction, or ED, for short. This condition affects between 18 to 30 million in the United States, some as early as age 40, according to the Massachusetts Male Aging Study. Others have reported ED to affect some in their mid-20s, mostly due to psychological or medical reason. Is poor libido same as ED? No, diminished or absent libido is the lack of sexual desire. This and problems with ejaculation are also forms of male sexual dysfunction, but ED is the actual physical inability to have an effective and sustained erection to achieve ejaculation. Men with ED have normal libido, but have ineffective erection. Usually, there is a physical or medical (hemodynamic) reason for it. What is the normal mechanism? When a man is sexually stimulated, the normal hemodynamic is initiated by the brain (the largest sex organ, contrary to what some people erroneously think), which sends electrical impulses to the genital nerves in the male organ, causing the smooth muscles inside the two longitudinal sausage casing-like chambers (tubular … Continue reading →

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Stanford Expert Explains What Erectile Dysfunction Really Means

Posted: Published on June 12th, 2012

Stanford, Calif. (PRWEB) June 12, 2012 To support National Mens Health Week, Michael Eisenberg, MD, director of the Male Reproductive Medicine and Surgery program at Stanfords Department of Urology, is urging men and their loved ones to seek expert help if they are worried about erectile dysfunction. Not only should men expect to have the physical ability for good and adequate sex function as they age, they should also know that dysfunction can be an important early warning sign for other serious health conditions. In fact, Eisenberg said, most cases of erectile dysfunction stem from a physical cause, not a psychological one. Large epidemiologic studies estimate that dysfunction affects probably about 50 percent of all men in this country between age 40 and 70, he said. In the past, it was thought that most of this dysfunction was psychological. We now know that probably 85 to 90 percent is due to an organic cause that we can identify. The predominant causes are cardiovascular disease, high blood pressure, diabetes, smoking and obesityand those conditions have increased in recent years. Certain medications for blood pressure and psychiatric illnesses can also have a negative impact on function, Eisenberg said. There are some psychological … Continue reading →

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5 Men’s Health Tests to Save Your Money and Your Life

Posted: Published on June 12th, 2012

Everyone knows that a baby-pink ribbon is for breast cancer awareness. But what about a baby-blue ribbon? Did you know its for prostate awareness? Mens health tends to take a back seat in our society. But men are just like women when they put off doctor visits and health screenings, their whole families can suffer. That can mean preventable health care costs, chronic health problems, and even death. So in honor of Mens Health Month, weve compiled five life- and money-saving health screenings for you or the men in your life The Centers for Disease Control rank heart disease as the leading cause of death in the United States, and the Mayo Clinic considers it the No. 1 threat to men in particular. One of the best ways to prevent it is to monitor your lipid profile, a blood test that measures your total cholesterol, LDL (bad) cholesterol, HDL (good) cholesterol, and triglycerides. The worst part of the test? You have to fast the night before. The American Heart Association recommends that adults over age 20 have their lipids tested once every five years. Adults over age 45 or with certain heart disease risk factors should be tested more often. … Continue reading →

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MARKET REPORT: Bears battered by euro rescue

Posted: Published on June 12th, 2012

By Geoff Foster PUBLISHED: 16:47 EST, 11 June 2012 | UPDATED: 16:47 EST, 11 June 2012 Overweight bears had the life squeezed out of them after the Spanish government secured 80billion of funding for its ailing banking sector over the weekend. Share prices soared first thing on sheer relief but the euphoria did not last for long. Dealers soon questioned whether the bailout would be enough, while sceptics suggested it addresses the symptoms rather than the disease and only keeps the banking sector alive rather than supporting growth. Up 100 points before dealers had a chance to digest their cornflakes, the Footsie drifted steadily lower as shrewd fund managers trousered profits and the close was 2.71 points easier at 5,432.37. Share prices soared first thing on sheer relief but the euphoria did not last for long as dealers questioned whether the bailout would be enough The FTSE 250 traded 187 points up at best before ending 40.71 points down at 10,658.24. Wall Street opened almost 10 points lower. Neil Mackinnon, chief economist at VTB Capital, still advises extreme caution. He said: The eurozone debt and banking crisis remains unresolved and there is every chance that more bailouts will be needed … Continue reading →

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Electro-Medicine : Biological Physics – Neuronal Inflammation

Posted: Published on June 12th, 2012

11-06-2012 10:25 Research & Compilation : by (Me) Nicholas Ellis @ "Everyone should consider his body as a priceless gift from one whom? he loves above all, a marvelous work of art, of indescribable beauty, and mystery? beyond human conception, and so delicate that a word,?? a breath, a look, nay, a thought may injure it."- Nikola Tesla "A human being is a microcosmos, ie the laws prevailing in the cosmos also operate in the minutest space of the human being."- Viktor Schauberger Note: fMRI's / Cardiopulmonary Capillary Hemo Dynamics, and its relationship with Magnetoencephalography Note: Cold-Core Eddy Current vs Warm-Core Eddy Current and its relationship with Thermohaline Circulation Systems "Electricians are now admitting that, in electric currents the energy does not flow through, or along the wire, itself; but is actually transmitted by the ether vibrations outside of the wire,"-John Keely Most people know that nerves work by passing electrical currents from cell to cell. But you might be surprised to learn that no one knows exactly how anesthetics stop nerves from carrying pain signals. That's why two scientists believe that we really don't know how nerves work after all. According to their controversial theory, electricity is just a … Continue reading →

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Cell Membranes – The Fluid Mosaic Model (Examville) – Video

Posted: Published on June 12th, 2012

11-06-2012 13:32 Download this and other presentations for FREE from Examville's Study Aids section. View thousands of videos and download study aids and tutorials at (consumer-to-consumer education marketplace). Upload your videos and study aids and host your own classes/tutoring sessions for free at Examville. Join for FREE - Examville.com® - the education marketplace (TM). Read the original post: Cell Membranes - The Fluid Mosaic Model (Examville) - Video … Continue reading →

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