Showing posts with label blindness. Show all posts
Showing posts with label blindness. Show all posts

Friday, May 07, 2010

Can Resistance Exercise Really Help Those With Type-2 Diabetes?

When a person is diagnosed with diabetes, his or her body would have problem making or using insulin. Insulin is required for moving glucose (blood sugar) into cells, where it is stored and later used for energy.

An estimated 24 million people in the Untied States have diabetes, with 90 percent of them are diagnosed as Type-2 diabetes, which typically develops after the age of 45. And, it could be the result of unhealthy lifestyle habits.

The glucose levels found in patients with Type-2 diabetes are high because of insulin resistance and relative insulin deficiency. Insulin resistance means that fat, liver, and muscle cells do not respond normally to insulin. As such, blood sugar does not get into cells to be stored for energy.

Once sugar fails to enter cells, abnormally high levels of sugar will accumulate in the blood stream. This will often trigger the pancreas to produce more and more insulin, but can never be enough to keep up with the body's demand.

Diabetes is already a chronic disease by itself. If it is not managed appropriately, it can surely place patients at a higher risk of developing other serious complications including heart disease, blood vessel disease, kidney failure, nerve diseases and even blindness and amputation of legs.

In September 2007, a paper published by Canadian researchers in the Annals of Internal Medicine showed that Type-2 diabetics, who exercised regularly, could have better blood-sugar control, especially if they did aerobic exercises as well as lifted weights.

According to most doctors and health experts, exercise is another powerful way to reduce blood sugar, in addition to strict diet control and medication. In general, exercise would help diabetics reduce insulin resistance by allowing cells in the body to have a higher uptake of glucose in the blood stream. This certainly would improve blood sugar control.

Besides aerobic exercise, Type-2 diabetics are advised to perform resistance training at least 3 times a week. Resistance training is one that includes exercises conducted using weights, weight machines or elastic bands. Its purpose is to improve strength by slowly and progressively overloading the muscles over a series of exercise sessions.

Nevertheless, diabetics should be aware of some risks in overdoing exercise. The most common one is patients might experience low blood sugar after drastic exercise. As such, patients should have their blood sugar checked before and after performing their exercise.

Meanwhile, patients with diabetes over long period of time, or kidney, eye or feet complications from diabetes might encounter problems when exercising. So, it is better to consult a physician before starting to engage any training program.

Tuesday, April 14, 2009

Can Herbal Medicine Treat Diabetes and Prevent Heart Disease?

Herbal medicines have already been utilized by people for the treatment of many diseases and ailments for many centuries. Sad to say, their role has gradually been dismissed by the Western health experts because they claim that no hard scientific evidence is found to support how these herbs treat the diseases.

However, the prevailing scientific medicines seem could not deliver their promises in treating many diseases and worse still, many of these medications come with side effects, some of which are deadly serious. Therefore, more and more patients have turned to herbal medicines for help.

Recently, there is an increase in the number of diabetics seek treatment from Traditional Chinese Medicine (TCM), though some doctors felt that there is no proven evidence in such alternative treatment.

Diabetes is a very common but serious disease that is characterized by excessively high blood sugar level. Being a known risk factor for heart disease and stroke, diabetes could also lead to high blood pressure, blindness, peripheral amputation and even heart attack.

History showed that medicinal plants have been used in traditional healing around the world for a long time to treat diabetes. This is because such herbal plants have hypoglycemic properties, as reported in scientific literature.

At least 400 traditional plants could treat diabetes, and some of these have been scientifically evaluated and observed to have experimental and/or clinical anti-diabetic activity. For example, Gymnema sylvestre (gurmar), Momordica charantia (bitter melon) and Trigonella foenum greacum (fenugreek) have been found to be beneficial to diabetics. Moreover, there have been very few adverse effects were reported in the clinical studies of these herbal medicines. In other words, they appear to be generally safe.

It is worth mentioning that many Western drugs used today also originated from natural plant sources. For instance, metformin, an oral prescription glucose-lowering drug for diabetes, was initially derived from a flowering plan called Galega officinalis (Goat’s Rue or French Lilac). The latter was commonly used as traditional remedy for diabetes.

In fact, The World Health Organization (WTO) Expert Committee on diabetes has recommended that traditional medicinal herbs be further investigated. This indicates that the role of TCM in the management of diabetes should not be underestimated.

Wednesday, January 28, 2009

What Type of Diet Can Control Diabetes and Prevent Heart Disease?

Being the most common form of diabetes, type-2 diabetes is closely linked with obesity. Because of a high blood sugar level, diabetics are at a high risk of developing heart disease, kidney damage, stroke, and blindness.

Therefore, when one is diagnosed with diabetes, he or she will have to adhere closely to the diet suggested by the doctors in order to control the blood sugar level.

The latest findings, which appeared on December 16, 2008 in the Journal of the American Medical Association, by Canadian researchers from St Michael's Hospital and the University of Toronto indicated that a diet that is rich in nuts, beans and lentils is better than a high cereal-fiber diet in controlling diabetes and hence preventing heart disease.

In the study, 210 people with Type-2 diabetes were randomly selected to try 1 of 2 diets for 6 months. All the participants were prescribed with medications for controlling their blood sugar and had monthly blood tests.

An abundance of beans, peas, lentils, nuts and pasta were given to people who were on the low-glycemic index diet. They were also asked to have low-glycemic index breads like pumpernickel, quinoa and flaxseed and breakfast cereals including large flake oatmeal and oat bran.

On the other hand, people in the high fiber group were given a largely 'brown' diet, which included whole grain breads and cereals, brown rice, potatoes with skins and whole wheat bread, crackers and cereals.

People in both groups were also encouraged to eat 3 servings of fruit and 5 servings of vegetables daily.

The examination at the end of 6 months showed that those on the low-glycemic diet lost slightly more weight. They had not only significantly better control of their blood sugar but also higher levels of high-density lipoprotein (HDL), the so-called good cholesterol.

The results showed that the diet could be one of the many options available to people with diabetes, other medical conditions and even healthy people.

According to the researchers, many popular diets including the South Beach Diet and the Zone Diet already focus on low-glycemic index foods, which produce only small changes in blood glucose and insulin levels. In fact, many of the popular books on diets have already been ahead of the scientists in using it.

While food industry has an opportunity to produce modern foods with low-glycemic properties that can fit palatably into the diet, many of the traditional foods such as beans, pasta that were eaten by the older generations, can usefully be brought back into the diet.

Wednesday, January 14, 2009

Vitamin-D Help Babies Stay Away From Type-1 Diabetes!

Also known as, “juvenile diabetes” previously, Type-1 diabetes is usually found in children and young adults. For people with Type-1 diabetes, their bodies do not produce insulin, which is a hormone that can convert sugar (or glucose), starches and other food into energy.

Incidentally, a person who has Type-1 diabetes can develop medical complications such as heart disease (cardiovascular disease), blindness, nerve damage and kidney damage.

In a recent paper published in May 2008 in the Archives of Disease in Childhood, researchers from Stockport National Health Service Foundation Trust and Booth Hall Children's Hospital in Manchester, United Kingdom reported that if small children were given supplemental Vitamin-D, they would be prevented from developing Type-1 diabetes later on.

Basing on a number of clues suggesting link between low Vitamin-D levels and Type-1 diabetes, the researchers reviewed all published research on Vitamin-D supplementation and diabetes risk, and found that infants given Vitamin-D supplement were 29 percent less likely to develop Type-1 diabetes than those who had not received supplements.

Nevertheless, they suggested that proper clinical trials should be carried out to determine the optimal dose and formulation of Vitamin-D, when and for how long Vitamin-D should be given to children.

Meanwhile, the researchers also advise parents to ask from their pediatricians for prescription of Vitamin-D supplements for their infants. Alternatively, they can also get the supplement over the counter, provided they adhere strictly to the manufacturers’ instructions.

Vitamin-D is produced in the skin when exposing in sunlight. A shortage of Vitamin-D can lead to a number of health problems.

As only little Vitamin-D is found in breast milk, the American Academy of Pediatrics recommends Vitamin-D supplements for nursing infants. In United Kingdom, the public health authorities also urge parents to give their children Vitamin-D supplements for at least the first 2 years of their life.

Thursday, September 18, 2008

Would Fruit Juice Benefit Women with Type-2 Diabetes?

Eat more vegetables and fruits to stay healthy! You would probably hear this very common statement frequently. How about fruit juice, is it good for health?

A recent study published in July 2008 by Tulane University School of Public Health and Tropical Medicine, New Orleans indicated that “women with Type-2 diabetes” should stay away from fruit juice. They should eat green leafy vegetables and whole fruits, instead, if they wish to ward off Type-2 diabetes.

The researchers found that with an additional 3 servings of whole fruit daily, or one more serving of spinach, kale or similar leafy green vegetable, the risk of developing diabetes over an 18-year-period was reduced among the 71,346 women enrolled in the Nurses’ Health Study.

The decrease was only modest, so if one with many other risk factors, for example, unhealthy diet, smoking, emotional stress, overweight, etc., then this may not be able to prevent one from diabetes, the researchers added.

Diabetes is a very common disease that affects some 150 million people worldwide. A person with diabetes will have high levels of sugar in their blood. This will lead to heart disease, heart attack, stroke, blindness, kidney failure, etc. if it is not managed appropriately.

In the study, 4,529 women, who developed Type-2 diabetes, were being followed and their data on the diets were analyzed. These women were divided into 5 groups based on fruit and vegetable intake, and on fruit juice consumption.

It was found that an additional of 3 servings a day of whole fruit would reduce the risk of Type-2 diabetes by 18 percent, while a single additional serving of leafy green vegetables only cut the risk by 9 percent. When an additional daily serving of fruit juice was introduced, the likelihood of developing diabetes was increased by 18 percent. A possible reason for such an increase in risk could be the big sugar load coming in liquid form that is absorbed rapidly.

The new findings seem to be contradicting with the current national dietary guidelines in United States, which recommend using 100 percent fruit juice to replace a serving of fruit. While the findings must be replicated, the researchers still warn people who wish to replace some beverages with fruit juices as healthier options to implement with caution.

Sunday, August 17, 2008

Why Are Weight Gain For Type-1 Diabetics Not Big Deal?

Diabetics, who can be classified as Type-1 or Type-2, have high levels of sugar in their blood. For Type-2 diabetics, weight gain can be very bad for them. It is believed that this kind of diabetes is driven by rising rates of obesity and sedentary lifestyles.

On the other hand, Type-1 diabetes, previous known as juvenile diabetes, is an autoimmune disease, in which the body mistakenly destroys cells in the pancreas that make insulin.

The function of insulin is to convert sugar, or glucose, into energy. The excess sugar in the blood will damage organs including the eyes, kidneys and heart for both types of diabetes. Diabetics are at high risk of developing heart disease, kidney failure and blindness.

A recent study by the researchers at the University of Pittsburgh indicated that people who gained weight over time were less likely to die than others studied, while those classified as underweight were facing greatest risk for death. Even obese or overweight Type-1 diabetics were less likely to die.

The researchers tracked 655 patients with Type-1 diabetes for 20 years and found that those people who gained the most weight over time seemed to have lower mortality than those who gained less weight or lost weight. According to the researchers’ interpretation, Type-1 diabetics are often underweight. If they were able to gain weight, it means that they may also able to control their disease better. The findings were presented at a meeting of the American Diabetes Association in San Francisco during June 2008.

When statistically accounted for waist circumference (a risk factor for death), the researchers also discovered that overweight or obese patients were less likely to die when compared with patients with a normal weight.

Perhaps, based on the findings, the concerns on growing rates of obesity will have to be looked differently for Type-1 diabetics than for the general population. However, people should not take the results of this study as excuse for them to go out, eat, and put on weight.

Wednesday, July 09, 2008

Diet That May Help Prevent From Diabetes!

In general, there are 2 types of diabetes, namely Type-1 and Type-2. Type-1 is caused by permanent destruction of insulin-producing beta cells in the pancreas. This type of diabetes usually appears in patients during the early stage in life. On the other hand, the adoption of sugary and fatty diets and sedentary lifestyle has caused Type-2 diabetes to become an epidemic in developed and developing countries. Without a proper medical treatment, diabetes might lead to kidney failure, blindness, heart disease and even death.

According to the estimation by the International Diabetes Federation, the number of cases, including many adolescents, will raise from 246 million today to 380 million by 2025.

Recently, researchers from the University of Navarra in northern Spain reported in the British Medical Journal on May 29, 2008 that Mediterranean diet, which is believed to benefit the cardiovascular system, also helps protect against diabetes.

Mediterranean diet comprises mainly olive oil, fish, grains, fruit, nuts and vegetables, usually supplemented by a modest amount of red wine. Only a small portion of meat and dairy products are included the diet.

In the study, 13,753 people with graduate-level education were recruited between December 1999 and November 2007. These subjects had no history of diabetes when they were enrolled. Over the following months and years, their health and dietary habits were then tracked in details.

During the follow-up period (an average of 4.4 years over the range of participants), 103 people became diagnosed with Type-2 diabetes. A large percentage of these cases are those who did not follow the basics of the Mediterranean diet. Meanwhile, those who adhered to the diet most strictly had a relative reduction of 83 percent in the risk of diabetes.

Interestingly, many people in this group also had accumulated many risk factors for the disease: they were older, were fatter, had a family history of diabetes, more sedentary lifestyle or were ex-smokers. Yet, they appear to have been protected by the diet.

Numerous previous studies have proved that Mediterranean diet helps cardiac and vascular health. A paper published in January 2008 in the British journal Thorax revealed that women who followed the diet while pregnant might also protect their baby from childhood asthma and allergy.

Sunday, May 18, 2008

Exercise Is Necessary Even If You Are Old!

Exercise seems to be a routine that you cannot afford to miss, whether you are a healthy person or a person with some kind of medical disorder. Especially when you land into the category of overweight or even obese, exercise is even more important as it will somehow assist you manage your body weight.

Recently, a study had found that a week of exercise significantly improved the function of insulin-making beta cells for a group of sedentary older people who are at risk of developing diabetes. The researchers from University of Michigan published their findings during March 2008 in Journal of Clinical Endocrinology and Metabolism. Although the study showed that short-term exercise boosts insulin sensitivity, how it might affect beta cell function remains a mystery.

Beta cell function is known to decline with age though the cause is not clear. Ageing may also make people less sensitive to the blood sugar-regulating effects of insulin and impaired insulin secretion may be developed.

There are 12 sedentary individuals aged 60 and above were examined in the study. They were asked to perform an hour-long workout every day for a week. Stints on a treadmill, exercise bike and cross-training machine were included in the exercise sessions. The participants were required to work out at 60 percent to 70 percent of their maximum allowable heart rate capacity.

At the end of one week, the sensitivity to insulin showed an increase of 53 percent, on average, and the beta cell function (called the disposition index) had raised by 28 percent for the study participants. Meanwhile, the researchers could not find any changes in the fat mass, levels of fat in the blood, or any other factors that might explain the effect of exercise on beta cells.

As such, the researchers indicates that longer-term exercise training studies are required and are in fact in progress currently to evaluate further exercise training effects on beta cell function in age-related glucose intolerance.

Diabetes is a condition, if not managed well, that might lead to other complications like kidney failure, blindness, and neuropathy. Meanwhile, a diabetic may have a higher risk of getting heart disease.

Tuesday, April 08, 2008

Taiji Can Help Fight Diabetes!

Some 250 million people worldwide suffer Type-2 diabetes. Diabetes is a very common medical condition, but can be a very serious one, too.

Diabetes is characterized by excessively high blood sugar level. Food consumed is digested and released into blood as glucose (a form of sugar), to provide energy. When there is excess glucose, a hormone called insulin will convert and store glucose in the body for future usage. Diabetes is due to defects in insulin production (Type 1 diabetes), insulin action (Type 2 diabetes), or both, causing a buildup of blood glucose.

Patients with diabetes must be treated with medications in a timely manner to prevent them from escalating to more serious medical disorders like blindness, kidney failure, high blood pressure and heart disease.

Nevertheless, 2 newly-released studies indicated on April 1, 2008 that Taiji can actually help curb symptoms of Type-2 diabetes. Separate experiments conducted in Australia and Taiwan concluded that diabetics who performed Taiji for a few hours a week over a 3-month period showed significant health improvement compared to control groups.

Developed in China in the 13th century or earlier, Taiji combines elements of martial arts and meditation. Taiji is a very popular exercise nowadays, and it is practiced by millions of people in China and around the world.