The twin cycle hypothesis of the etiology of type 2 diabetes. During long-term intake of more calories than are expended each day, any excess carbohydrate must undergo de novo lipogenesis, which particularly promotes fat accumulation in the liver. Because insulin stimulates de novo lipogenesis, individuals with a degree of insulin resistance (determined by family or lifestyle factors) will accumulate liver fat more readily than others because of higher plasma insulin levels. In turn, the increased liver fat will cause relative resistance to insulin suppression of hepatic glucose production. Over many years, a modest increase in fasting plasma glucose level will stimulate increased basal insulin secretion rates to maintain euglycemia. The consequent hyperinsulinemia will further increase the conversion of excess calories to liver fat. A cycle of hyperinsulinemia and blunted suppression of hepatic glucose production becomes established. Fatty liver leads to increased export of VLDL triacylglycerol (85), which will increase fat delivery to all tissues, including the islets. This process is further stimulated by elevated plasma glucose levels (85). Excess fatty acid availability in the pancreatic islet would be expected to impair the acute insulin secretion in response to ingested food, and at a certain level of fatty acid exposure, postprandial hyperglycemia will supervene. The hyperglycemia will further increase insulin secretion rates, with consequent enhancement of hepatic lipogenesis, spinning the liver cycle faster and driving the pancreas cycle. Eventually, the fatty acid and glucose inhibitory effects on the islets reach a trigger level that leads to a relatively sudden onset of clinical diabetes. Figure adapted with permission from Taylor (98).
Type 2 diabetes results when the body is unable to produce the amount of insulin it needs to convert food into energy or when it is unable to use insulin appropriately. Sometimes the body is actually producing more insulin than is needed by a person to keep blood glucose in a normal range. Yet blood glucose remains high, because the body's cells are resistant to the effects of insulin. Physicians and scientists believe that type 2 diabetes is caused by many factors, including insufficient insulin and insulin resistance. They increasingly believe that the relative contribution each factor makes toward causing diabetes varies from person to person.
In some kids with diabetes, repeated insulin injections can cause a thickening or lumpiness of the fatty tissue beneath the skin, called lipodystrophy (or lipohypertrophy). This is more likely if injections are given in the same area again and again rather than in different injection sites as recommended. Usually, this is only a cosmetic problem. But in some cases, insulin injected in areas of skin with lipodystrophy may not be absorbed into the bloodstream as it should. This can make the insulin dose take longer than usual to work.
Herbal medicine has been an integral part of TCM for more than 2,000 years. Many herbal formulations have been developed and are used in the treatment of diabetes. The Huang Di Nei Jing (Yellow Emperor’s Inner Classic), which dates from the Han Dynasty 206 B.C.–220 A.D., listed 13 herbal formulations, 9 of which were patent medicines including pills, powders, plasters, and tinctures.12 The sources of Chinese remedies are varied and include plants, minerals, and animal parts.3
An insulin pump is a small machine that gives you small, steady doses of insulin throughout the day. You wear one type of pump outside your body on a belt or in a pocket or pouch. The insulin pump connects to a small plastic tube and a very small needle. You insert the needle under your skin and it stays in place for several days. Insulin then pumps from the machine through the tube into your body 24 hours a day. You also can give yourself doses of insulin through the pump at mealtimes. Another type of pump has no tubes and attaches directly to your skin, such as a self-adhesive pod.
The team emphasizes that there is a large gap between curing diabetic mice and achieving the same in human beings. They say that they'd like to start clinical trials in three years, but more animal testing is needed first at a cost of about US$5 million, as well as making an application to the US Food and Drug Administration for investigational new drug approval.
A popular spice used in Indian cooking, and the main ingredient of ‘curry’ that has taken the world by storm, turmeric has antibacterial, anti-inflammatory and antioxidant properties that all come together to help diabetics manage more stable blood sugar levels. It helps boost immunity and prevent infections that diabetics are often vulnerable to. Studies conducted on rats prove that curcumin, the active ingredient in turmeric, is effective in reducing plasma glucose level and HbA1C as well as improving the lipid profile. Many diabetics also suffer from arthritis, since the sugar laden blood and inflammatory processes typical to diabetes often damage joints. Turmeric, with its anti-inflammatory abilities, also helps with these joint pains.
Treating and managing diabetes can seem overwhelming at times. But the diabetes health care team is there for you. Your child's diabetes management plan should be easy to understand, detailed, and written down for easy reference. You also should have the names and phone numbers of the health care team members in case of emergencies or if you have questions.
These surgeries, even today, come with significant side effects. People have to be vigilant about getting their needed nutrients, since many aren’t as easily absorbed through food anymore. Other substances are too easily absorbed by the body, particularly drugs like alcohol. This vulnerability can then lead to alcohol abuse and may even help explain the slightly higher rates of suicide and self-harm seen in patients soon after surgery. Also distressing is that an estimated one of every 10 patients will fail to lose weight or regain the weight back in the long term, while others will require additional operations to fix complications like stomach leakages.
In type I diabetes, insufficient levels of insulin result from the immune system itself attacking the pancreatic beta cells. On the other hand, while beta cell dysfunction varies widely between type II diabetes patients, insulin resistance is a major part of the disease. Restoring the beta cells of the pancreas to health is the treatment approach these two diseases share to some degree.
Rosiglitazone (Avandia) and pioglitazone (ACTOS) are in a group of drugs called thiazolidinediones. These drugs help insulin work better in the muscle and fat and also reduce glucose production in the liver. The first drug in this group, troglitazone (Rezulin), was removed from the market because it caused serious liver problems in a small number of people. So far rosiglitazone and pioglitazone have not shown the same problems, but users are still monitored closely for liver problems as a precaution. Both drugs appear to increase the risk for heart failure in some individuals, and there is debate about whether rosiglitazone may contribute to an increased risk for heart attacks. Both drugs are effective at reducing A1C and generally have few side effects.
Effect of an 8-week very-low-calorie diet in type 2 diabetes on arginine-induced maximal insulin secretion (A), first phase insulin response to a 2.8 mmol/L increase in plasma glucose (B), and pancreas triacylglycerol (TG) content (C). For comparison, data for a matched nondiabetic control group are shown as ○. Replotted with permission from Lim et al. (21).
Diabetes is the major cause of blindness, kidney failure, heart attack and stroke. The number of people affected by all types of diabetic disorders is now over four times higher than just 40 years ago. This has led the World Health Organization (WHO) to consider diabetes an epidemic, predicting it will soon be the seventh biggest cause of death worldwide.