Diabetes Fight May Be Helped By New Molecular Target

life-microrna-art-bg.jpgResearchers say that the fight against diabetes could be helped by targeting a newly discovered molecule, a microRNA known as miR124:

The researchers found that miR124 inhibits the production of insulin in the pancreas. It does this by controlling how several genes are expressed in the body’s beta cells, which secrete insulin.
Insulin is the principal hormone that regulates the uptake of glucose and if the body produces insufficient insulin this can cause diabetes.
The researchers believe that if drugs could be developed to suppress the action of miR124, and related microRNAs, in those with diabetes, this could enable more insulin to be produced, helping to combat the condition.
… Synthetic molecules known as antagomirs can inactivate microRNAs and scientists are hopeful that they might one day be able to harness their properties to switch off selected microRNAs, including miR124.

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High Glucose Levels Can ‘Lock’ body’s Metabolism In A Diabetic State

Research has speculated that exposure to high glucose levels quickly creates a metabolic memory in which diabetes persists long after glucose levels have been corrected. Studies to date suggested that oxidation played a role but the exact mechanism was unknown. Now, researchers at the University of Warwick Medical School near Coventry, England have uncovered a process that locks the body’s metabolism in a diabetic state after only relatively limited exposure to high glucose levels:

The Warwick research team, led by Dr Antonio Ceriello, have now proven that the damage seems to be done in a process called glycation when early on in a period of high glucose levels glucose sugar molecules are able to bind to proteins in the mitochondria of cells (the parts of cells governing the production and regulation of energy). This persists even if glucose levels later fall to normal. This inhibits and distorts the mitochondria’s normal function and results in an overabundance of the production of free radicals (or Reactive Oxygen Species – ROS) which cause oxidation and thus continued diabetic complications.
The Warwick Medical School researchers proved their hypothesis by taking tissue and exposing it to 2 weeks of high levels of glucose, followed by one week of normal glucose – however for half the tissue they also applied several antioxidants at the end of the two weeks of high glucose. The tissue without antioxidants levels of glucose stress remained high but where antioxidants had been applied there was a dramatic fall in the incidence of free radicals and there was also a significant drop in 5 of the 6 key markers for high glucose stress.
… research confirms the need for very early tight control of glucose levels to avoid diabetic complication and that that control must be supplemented with the use of antioxidant agents to mitigate the progression of complications.
However long term use of antioxidants can in itself produce health problems so in a further research published this month the Warwick Medical School team have tested the use of the AT-1 receptor blocker Telmisartan and found it can be used in exactly the same way to suppress the build up of free radicals without the side affects that long term use of antioxidants would cause.

Continue reading: Sugar Coated Proteins Seal In A Memory Of Diabetes …

Caffeine could protect against diabetes

… people who drank more than six cups of green tea per day had a 33 percent lower risk of diabetes, compared to people who drank less than one cup per week. Drinking three or more cups of coffee per day was associated with a 42 percent lower risk of diabetes.
New research from Japan suggests that people who drink lots of green tea or coffee every day could lower their risk of diabetes by 33 percent – a result linked to caffeine content.

New research links metabolism and appetite suppression, opening door to obesity treatments

A team led by a Canadian researcher has discovered a process by which a small protein acts directly within muscles to increase the body’s metabolism to burn fat while simultaneously suppressing appetite. These findings suggest that the protein, known as the ciliary neurotrophic factor (CNTF) – a cytokine expressed by glial cells, could play a key role as a weight loss agent.
Of particular interest to diabetics is that there is data that supports the use of CNTF as a potential therapeutic means to combat lipid-induced insulin resistance.

Cox2 inhibitors play a role in fighting some cancers?

The results of a recent study suggests that women who have been taking the anti-inflammatory Cox-2 inhibitors such as Celebrex for a period of more than 2 years, have a possible less risk of developing breast cancer.
The researchers studied the breast tissue of women who had developed hyperplasia and they discovered that the women with high levels of cox-2 went on to develop breast cancer. A similar study relating to colon cancer has discovered that people who take Cox-2 inhibitors are less likely to develop colon cancer.
These results contain good news and bad news, because the minimum dose of the Cox-2 inhibitors required to protect against these cancers is an unknown quantity. At the present time there is only one drug available on the open market that is being sold as a Cox-2 inhibitor – Celebrex. On the negative side is the potential for this drug to produce unwanted side effects such as hypertension as well as the possibility of causing a heart attack. (NOTE – if the person already has heart problems then that person should either not be given Celebrex or must be monitored very closesly). At this point in time there is no definite research that shows how the benefits outweigh the risks.
Perhaps the answer might lie in researching natural herbal alternatives to the manufactured Cox-2 inhibitors.

Lab-grown bladders ‘a milestone’

_41314864_scientist203.jpegUS scientists have successfully implanted bladders grown in the lab from patients’ own cells into people with bladder disease.
The researchers, from North Carolina’s Wake Forest University, describe seven successful cases, in some of which the implanted organs have worked for years.
The achievement, details of which have been published online by The Lancet, is being described as a “milestone”. One of the researchers described these results as one small step in our ability to go forward in replacing damaged tissues and organs, and that it could prove to be particularly useful for people with bladder cancer.

Vitamin D deficiency common in diabetics

Italian researchers report in the medical journal Diabetes Care, that approximately three out of every five patients with type 2 diabetes show signs of vitamin D deficiency:

(…) The rate of vitamin D deficiency (61 percent) was significantly higher in the diabetics than in the controls (43 percent). Diabetics with vitamin D deficiency were more likely to be women, to have poorly controlled diabetes, and to be taking insulin and cholesterol-lowering drugs.
(…) Because a lack of vitamin D can negatively affect bone health and have other adverse effects, he added, “widespread screening for vitamin D deficiency or routine vitamin D supplementation should be seriously considered” for people with diabetes.

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Related:
Vitamin D inhibits progression of some prostate cancers
Researchers Find Means Of Isolating Vitamin D’s Cancer-Fighting Properties

Stem Cell Innovations Produces Human Pluripotent Stem Cells

PluripotentStemCells.jpeg

Pluripotent stem cells are cells that can produce additional stem cells as well as one or more other types of cells, and can develop into most, if not all, of the tissues of the organism. To date, two types of mammalian stem cells have been shown to be truly pluripotent: the well-known embryonic stem cells, which are cultured from very early embryos and are patented by the University of Wisconsin, and the lesser-known embryonic germ cells, which are developed from fetal gonadal tissue. Pluripotent stem cells hold great promise for both research and health care. This advance in human biology continues to generate enthusiasm among scientists, patients suffering from a broad range of diseases, including cancer, heart disease and diabetes, and their families.
Today, GEN is reporting that Dr. James H. Kelly, Chief Executive Officer of Stem Cell Innovations, Inc., will be presenting data at the Keystone Symposium on Stem Cells in Vancouver demonstrating that the Company has produced multiple lines of human pluripotent stem cells. Because these cells are derived from fetal tissue, not early embryos, they are eligible for use in laboratories funded by the National Institutes of Health.
In his presentation at the Symposium, Dr. Kelly will present data demonstrating that Company scientists were able to overcome many of the problems inherent in the production of EG cells. First, the Company’s cell lines are able to maintain their undifferentiated state and normal chromosome complement. Second, the Company is able to produce its cell lines without feeder layers (layers of foreign cells used as an environment to grow the stem cells which can complicate the process and result in contamination of the stem cells). Finally, the Company is able to efficiently develop multiple lines, the first step in creating banks of cells that can be matched to patients in cell therapies.

According to Dr. Kelly, the Company is considering ways in which to make these cells widely available to scientists and believes that these cells can make a significant contribution to our further understanding of stem cell biology and its accelerated commercial development.

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Magnesium Lowers Heart And Diabetes Risks

fruits_nuts_and_candy.jpg New research may help explain why eating fruits, vegetables, whole grains, and nuts helps protect the heart and prevent diabetes. The key may be the mineral magnesium. According to the study, people who ate magnesium-rich diets seemed to be protected against developing metabolic syndrome, a cluster of risk factors linked to cardiovascular disease and diabetes.
The risk factors associated with metabolic syndrome include elevated blood pressure, low levels of HDL “good” cholesterol, elevated triglycerides (blood fats), elevated fasting-glucose (blood sugar) levels, and abdominal obesity as determined by waistline measurement.

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High Blood Pressure During Sleep More Harmful

According to a new study, differences in blood pressure levels among people at night may make an additional contribution to people’s risk of heart disease, renal injury and stroke.

The Mayo researchers put ambulatory blood pressure monitors on 240 healthy people (all but two had normal blood pressure) and obtained blood pressure readings every 10 minutes for 20 consecutive hours.
The somewhat surprising finding was that differences in blood pressure levels among the participants in the study were as great or greater when they were sleeping as when they were busy with daytime activities.

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Related: High Blood Pressure – An Elusive Threat: Excess weight can contribute to high blood pressure, which is one reason that exercising and dieting can help lower pressures. This same regimen helps to control diabetes, which can be worsened by high blood pressure.

The Angel Lai Story: From Deaths’s Door To A Normal Four-year-old

With world news media focused on violence, disasters, conflict and other similar “newsworthy” events, it’s always nice to hear of a meaningful and heartwarming story that almost every family can identify with – the survival of a child against certain death. Even better, when it involves a life-saving medical procedure.
When Angel Lai was just six month’s old her health was going downhill fast with advanced leukaemia that had taken her little body to death’s door in less than a month. In fact, doctors had given her less than a 10 per cent chance of survival. At the time, her frantic parents were on the verge of loosing their only daughter.
Then two things happened that would eventually save Angel’s life: Her mom conceived a second child; and, a doctor told her mom about cord blood stem cell transplants.
Today, little four-year-old Angel Lai, a child whose doctors only gave a 10% chance of survival, is now a healthy, happy little girl, thanks to a stem cell donation from her baby brother.

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Omega-3 Fatty Acids Protect Against Inflammation And Bone Loss

Gum disease is initiated by bacteria populating dental plaque and may eventually result in tissue and tooth loss. Gum disease is similar to other chronic inflammatory diseases such as arthritis, where inflammation causes tissue damage and is responsible for the disease. To date, the prevention of gum disease is limited to successful oral hygiene and regular professional care. However, despite these preventive actions, plaque control is not enough to prevent disease in susceptible individuals with a high inflammatory response.
However, researchers presenting their findings today during the 35th Annual Meeting of the American Association for Dental Research are introducing Resolvins, a new family of biologically active products of omega-3 fatty acids. They are natural endogenous regulators of the inflammatory response. Since it is now known that inflammation plays a critical role in many diseases, including heart diseases and asthma, experiments were carried out to test the actions of the newly described EPA (eicosapentanoic acid)-derived Resolvin E1 (RvE1) in regulating tissue destruction and resolving inflammation in gum disease.
Experimental gum disease characterized by tissue inflammation and bone loss was stimulated in rabbits by the application of specific bacteria that cause human gum disease. The results of this study showed that topical application of RvE1 in experimental gum disease provided remarkable protection against soft tissue and bone loss associated with gum disease (periodontitis).

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The First Clinical Test For Saliva-Based Oral Cancer Detection: Ready Now

The purpose of this study was to explore the presence of informative RNA biomarkers from human serum transcriptome, and evaluate the serum transcriptome diagnostics for disease detection. Oral squamous cell carcinoma (OSCC) was selected as the proof-of-concept disease. – Abstract
Scientists at Dr. David Wong’s laboratory at the School of Dentistry at UCLA have discovered that seven RNAs, molecules that carry information in cells, when found in saliva are very useful for oral cancer detection.
Today, at the 35th Annual Meeting of the American Association for Dental Research, Wong’s research team is reporting for the first time that they have developed a standardized “Saliva RNA Test for Oral Cancer” ready for clinical usage. The “Saliva RNA Test” has been tested in 100 oral cancer and healthy people, and it has been confirmed that four saliva oral cancer RNA biomarkers are highly accurate in detecting oral cancer.

Oral cancer is the 6th most common cancer in men and the 14th most common cancer in women. In the US, oral cancer will be diagnosed in an estimated 30,000 Americans this year and will cause more than 8,000 deaths. The disease kills approximately one person every hour. Oral cancer can spread quickly. The majority of oral cancers are diagnosed in late stages, which accounts for the high death rates. Only half of those diagnosed with the disease will survive more than five years. However, if the cancer is detected early, there is an 80 to 90% chance for survival. It is therefore extremely important to detect oral cancer as early as possible, when it can be treated more successfully, thus enhancing the rate of survival.
Currently, the early detection of oral cancer depends on a thorough oral cancer examination, usually by a dentist or other qualified health care provider, for possible signs and symptoms of this disease. Scientists are working on technologies and biomarkers for the early detection of oral cancer. Saliva, an easy-to-obtain and non-invasive body fluid, has recently been shown to harbor highly informative biomarkers for oral cancer detection.
The saliva oral cancer RNA signature has been tested in over 300 saliva samples from oral cancer patients and healthy people, and the signature is always present in higher levels in the saliva of oral cancer patients than in saliva from healthy people, with an overall accuracy rate of about 85%.

This is the first standardized saliva-based test for clinical oral cancer detection and will have enormous clinical value in reducing the mortality and morbidity for oral cancer patients, as well as improving their quality of life.

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Coffee-Gene Interaction Raises Heart Attack Risk

“… coffee consumption increases the risk of MI only among individuals with a slow metabolizer genotype.” – Researchers.
myocardial_infarction.jpg Caffeine is “the most widely consumed stimulant in the world” and has been implicated in the development of such cardiovascular diseases as acute myocardial infarction. However, the relationship between coffee drinking and heart attack has been confusing, and this study helps to clarify some to clarify the muddy picture of the coffee-heart risk interaction by showing that a certain genetic make-up may increase the risk.
According to researchers at the University of Toronto, people with a gene variant that causes slow metabolism of caffeine have a sharply elevated risk of a non-fatal heart attack if they drink large amounts of coffee. In a large case-control study, only those people who were slow to metabolize caffeine had an increased risk of non-fatal myocardial infarction when they drank large amounts of coffee, which points to the fact that we need to take into account not just how much caffeine we take in, but also how much stays in your system.
A qualifier to the apparent link of a slow metabolizer genotype and risk of myocardial infarction is that coffee contains a range of other chemicals, and is associated with other lifestyle factors that cloud the link between consumed caffeine and unwanted cardiovascular outcomes.
Currently, there is no commercially available test that can distinguish between the two genotypes studied. However, one implication of the study is that a single cup of coffee a day – 250 mL , is safe no matter what genotype is involved.
Read more on this…
See animation of myocardial infarction here.

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Green Tea May Reduce Breast Cancer Risk – Black Tea May Increase Risk

“Overall summary odds ration [a measure of risk] showed an approximately 20 per cent statistically significant reduction in risk of breast cancer associated with high intake of green tea” …
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A meta-analysis of previous studies indicates that drinking five cups of green tea a day can reduce the risk of breast cancer by 22 per cent, the same studies that the FDA recently said contained very little science to support the claims. Although this article is a couple of weeks old, the information is still just as useful.
This particular meta-analysis involved relative risk of green and black teas with breast cancer, but there have been animal studies that indicate both green and black teas show inhibition in dimethylbenz[a]anthracene (DMBA) – induced carcinogenesis. I’ve previously worked on research with natural compounds in attempting to prevent DMBA induced carcinogenesis, and have to admit that I’m impressed with the fact that green and black teas shows inhibition in the face of such a powerful tumor promoter.
By the way, I’ve been a real fan of green tea for almost five years, drink 6 to 8 cups of strong tea a day (5 minute seeps of a high quality tea I order out of Japan), and take capsules of green tea extract with 470 mg. each of EGCG (epigallocatechin gallate) along with my daily nutritional regimen. I’m not a heatlh nut, just had to adapt due to my own personal health issues (I have MS and am a five year survivor of head and neck cancer – rather rare for Stage IV when found). Although drinking much greater quantities of green tea are not only safe but healthy, taking capsules of green tea extract should be done with caution, owing to some reports of liver toxicity.
For those that wish to have the health benefits of green tea but don’t like the taste of it, consider doing what I often do. Use 1 tsp of high quality sencha green tea to each 1.5 tsp of high quality unfermented Rooibos tea -of your favorite flavor (not flavoring, rather natural citrus peel). If you absolutely have to have it sweetened, use a very small amount of stevia instead of sugar or artificial sweetner (stevia actually lowers glucose levels).
Diabetics should also be interested in green tea for it’s effects on glucose metabolism.

Green tea promoted glucose metabolism in healthy human volunteers at 1.5 g/body in oral glucose tolerance tests. Green tea also lowered blood glucose levels in diabetic db+/db+ mice and streptozotocin-diabetic mice 2-6 h after administration at 300 mg/kg without affecting serum insulin level, whereas no effect was observed in control mice (+m/+m and normal ddY mice).

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Eat To Live: Nutrigenomics, the new food?

eat2.jpegHave you heard about nutrigenomics, a new-generation science that studies the interaction of individual nutrients on the genetics and the metabolism of the consumer?
Think about going into your local supermarket and along with your shopping list you take in the results from your latest genetic tests so you can be sure to buy the correct foods and supplements necessary to cut your risk of certain diseases!
But before you get too excited about doing this, you’re going to have to wait. They’re not on the market yet, neither are the tests. However, scientists are actually already working on this.

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Study Says Tequin Could Produce Diabetes

prod_shot.gif A Canadian study urges doctors to stop prescribing the Bristol Myers Squibb antibiotic, Tequin (gatifloxacin), saying it can have “life threatening” side effects, including diabetes.
Elderly people who took the medication were 17 times more likely to develop serious diabetes than if they took a different antibiotic, and were four times more likely to be hospitalized for low blood sugar.
The study was slated for a March 30 publication date in The New England Journal of Medicine, but was released earlier due to the importance of its findings.
A research Study using rats indicates that Gatifloxacin-induced secretion of insulin and epinephrine would contribute to the abnormalities in glucose homeostasis (see link below).
Related: Effects of gatifloxacin on serum glucose concentration in normal and diabetic rats.

Diabetes-related Complications On The Rise

cy2a.jpg Most would know diabetes as a disease arising out of inadequate production or inappropriate action of insulin.
But not many are aware that inflammation is a characteristic feature of the disease. Recent researches in the field of diabetes confirm that an excess production of some hormones and toxic substances in the body cause inflammation and several toxic reactions as well.
An implication of this could be seen in the form of diabetes related complications.
This was revealed by head, medicine, King George’s Medical University (KGMU), Prof CG Agarwal during a lecture on ‘current trends in the management of type II diabetes mellitus’ at a Continuing Medical Education (CME) programme organised by Indian Medical Association (IMA) on Monday.
“The role of free fatty acids, tumour necrosis factors and leptin was known to have been contributing to diabetes.
Related:
Inflamation Linked to Heart Disease and Diabetes

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