Prevention of type 2 diabetes

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Prevention of type 2 diabetes can be achieved with both lifestyle changes and use of medication. [1] The American Diabetes Association categorizes people with prediabetes, who have glycemic levels higher than normal but do not meet criteria for diabetes, as a high-risk group. Without intervention, people with prediabetes progress to type 2 diabetes with a 5% to 10% rate. Diabetes prevention is achieved through weight loss and increased physical activity, [2] which can reduce the risk of diabetes by 50% to 60%. [3]

Contents

Lifestyle

Many interventions to promote healthy lifestyles have been shown to prevent diabetes. A combination of diet and physical activity promotion through counselling and support programs decrease weight, improve systolic blood pressure, improve cholesterol levels and decrease risk of diabetes. [3]

Increasing physical activity may be helpful in preventing type 2 diabetes, particularly if undertaken soon after a carbohydrate-rich meal that increases blood sugar levels. [4] [5] [6] The American Diabetes Association (ADA) recommends maintaining a healthy weight, getting at least 2+12 hours of exercise per week (several brisk sustained walks appear sufficient), having a modest fat intake (around 30% of energy supply should come from fat), [7] and eating sufficient fiber (e.g., from whole grains).

Numerous clinical studies have shown that resistant starch increases insulin sensitivity, independent of the glycemic response of the food [8] [9] and may reduce the risk of type 2 diabetes. [10] The U.S. Food and Drug Administration requires claims that resistant starch can reduce the risk of type 2 diabetes to be qualified with a declaration that scientific evidence in support of this claim is limited. [11]

Foods with low glycemic index, rich in fiber and other important nutrients, are recommended, notwithstanding insufficient evidence. [12]

Study group participants whose "physical activity level and dietary, smoking, and alcohol habits were all in the low-risk group had an 82% lower incidence of diabetes". [13]

Various sources suggest an influence of dietary fat types. Positive effects of unsaturated fats have been asserted on theoretical grounds and observed in animal feeding studies. Hydrogenated fats are universally considered harmful, mainly because of their well-known effect on cardiovascular risk factors. [14]

Numerous studies suggest connections between some aspects of type 2 diabetes with ingestion of certain foods or with some drugs. Breastfeeding may also be associated with the prevention of type 2 diabetes in mothers. [15]

Some evidence relates consumption of coffee with prevention of type 2 diabetes. However, it is unclear if coffee causes any change in the risk of diabetes. This is true regardless of if it is caffeinated/decaffeinated, consumed with/without sugar, or potboiled or not. [16]

Medications

Some studies have shown delayed progression to diabetes in predisposed patients through prophylactic use of metformin, [17] [5] rosiglitazone, [18] or valsartan. [19] Lifestyle interventions are, however, more effective than metformin alone at preventing diabetes regardless of weight loss, [20] though evidence suggests that lifestyle interventions and metformin together can be effective treatment in patients who are at a higher risk of developing diabetes. [17]

A Cochrane systematic review assessed the effect of alpha-glucosidase inhibitors in people with impaired glucose tolerance, impaired fasting blood glucose, elevated glycated hemoglobin A1c (HbA1c). [21] It was found that acarbose appeared to reduce incidence of diabetes mellitus type 2 when compared to placebo; however, there was no conclusive evidence that acarbose compared to diet and exercise, metformin, placebo, no intervention improved all-cause mortality, reduced or increased risk of cardiovascular mortality, serious or non-serious adverse events, non-fatal stroke, congestive heart failure, or non-fatal myocardial infarction. [21] The same review found that there was no conclusive evidence that voglibose compared to diet and exercise or placebo reduced incidence of diabetes mellitus type 2, or any of the other measured outcomes. [21]

Many other medications are well known to modify risk of diabetes 2, although in most cases they are prescribed for reasons unrelated to diabetes 2. In patients on hydroxychloroquine for rheumatoid arthritis, incidence of diabetes was reduced by 77%, though causal mechanisms are unclear. [22] Dopamine receptor agonists are also known to improve glycemic control, reduce insulin resistance and help controlling body weight. [23]

Co-morbidities

People with mental health disorders are at a higher risk of developing type 2 diabetes. The most effective way to prevent type 2 diabetes in people with mental disorders is not clear; considerations include pharmacological interventions, behavior changes, and organizational interventions. [24]

Programmes

Several countries have established more and less successful national programmes to improve prevention and treatment of diabetes. [25] In the UK, the NHS's diabetes prevention programme Healthier You offers personalised face-to-face and digital services. [26] Assessment of the programme is ongoing, but based on the first 36,000 patients, it seems that those who complete the programme manage to reduce their blood sugar levels and lose weight. [27] [28] At the same time, only 1 in 5 people complete the whole 9-month programme. [29] [30] A study of 18,470 people who had been referred to the programme found that they had a 20% reduced risk of developing diabetes. [31] [32]

Related Research Articles

Insulin resistance (IR) is a pathological condition in which cells in insulin-sensitive tissues in the body fail to respond normally to the hormone insulin or downregulate insulin receptors in response to hyperinsulinemia.

<span class="mw-page-title-main">Hyperglycemia</span> Too much blood sugar, usually because of diabetes

Hyperglycemia or hyperglycaemia is a condition in which an excessive amount of glucose (glucotoxicity) circulates in the blood plasma. This is generally a blood sugar level higher than 11.1 mmol/L (200 mg/dL), but symptoms may not start to become noticeable until even higher values such as 13.9–16.7 mmol/L (~250–300 mg/dL). A subject with a consistent fasting blood glucose range between ~5.6 and ~7 mmol/L is considered slightly hyperglycemic, and above 7 mmol/L is generally held to have diabetes. For diabetics, glucose levels that are considered to be too hyperglycemic can vary from person to person, mainly due to the person's renal threshold of glucose and overall glucose tolerance. On average, however, chronic levels above 10–12 mmol/L (180–216 mg/dL) can produce noticeable organ damage over time.

<span class="mw-page-title-main">Type 2 diabetes</span> Form of diabetes mellitus

Type 2 diabetes (T2D), formerly known as adult-onset diabetes, is a form of diabetes mellitus that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. Common symptoms include increased thirst, frequent urination, fatigue and unexplained weight loss. Other symptoms include increased hunger, having a sensation of pins and needles, and sores (wounds) that heal slowly. Symptoms often develop slowly. Long-term complications from high blood sugar include heart disease, stroke, diabetic retinopathy, which can result in blindness, kidney failure, and poor blood flow in the lower-limbs, which may lead to amputations. The sudden onset of hyperosmolar hyperglycemic state may occur; however, ketoacidosis is uncommon.

<span class="mw-page-title-main">Metformin</span> Medication used to treat diabetes

Metformin, sold under the brand name Glucophage, among others, is the main first-line medication for the treatment of Type 2 diabetes, particularly in people who are overweight. It is also used in the treatment of polycystic ovary syndrome, and is sometimes used as an off-label adjunct to lessen the risk of metabolic syndrome in people who take antipsychotics. It has also been shown to inhibit inflammation, and is not associated with weight gain. Metformin is taken orally.

Drugs used in diabetes treat diabetes mellitus by decreasing glucose levels in the blood. With the exception of insulin, most GLP-1 receptor agonists, and pramlintide, all diabetes medications are administered orally and are thus called oral hypoglycemic agents or oral antihyperglycemic agents. There are different classes of hypoglycemic drugs, and selection of the appropriate agent depends on the nature of diabetes, age, and situation of the person, as well as other patient factors.

<span class="mw-page-title-main">Gestational diabetes</span> Exercise and Obesity Management During Pregnancy

Gestational diabetes is a condition in which a woman without diabetes develops high blood sugar levels during pregnancy. Gestational diabetes generally results in few symptoms; however, obesity increases the rate of pre-eclampsia, cesarean sections, and embryo macrosomia, as well as gestational diabetes. Babies born to individuals with poorly treated gestational diabetes are at increased risk of macrosomia, of having hypoglycemia after birth, and of jaundice. If untreated, diabetes can also result in stillbirth. Long term, children are at higher risk of being overweight and of developing type 2 diabetes.

<span class="mw-page-title-main">Sulfonylurea</span> Class of organic compounds used in medicine and agriculture

Sulfonylureas or sulphonylureas are a class of organic compounds used in medicine and agriculture. The functional group consists of a sulfonyl group (-S(=O)2) with its sulphur atom bonded to a nitrogen atom of a ureylene group (N,N-dehydrourea, a dehydrogenated derivative of urea). The side chains R1 and R2 distinguish various sulfonylureas. Sulfonylureas are the most widely used herbicide.

<span class="mw-page-title-main">Acarbose</span> Chemical compound

Acarbose (INN) is an anti-diabetic drug used to treat diabetes mellitus type 2 and, in some countries, prediabetes. It is a generic sold in Europe and China as Glucobay, in North America as Precose, and in Canada as Prandase.

Steroid-induced diabetes is characterized as an unusual rise in blood sugar that is linked to the use of glucocorticoids in a patient who may or may not have had diabetes in the past.

The main goal of diabetes management is to keep blood glucose (BG) levels as normal as possible. If diabetes is not well controlled, further challenges to health may occur. People with diabetes can measure blood sugar by various methods, such as with a BG meter or a continuous glucose monitor, which monitors over several days. Glucose can also be measured by analysis of a routine blood sample. Usually, people are recommended to control diet, exercise, and maintain a healthy weight, although some people may need medications to control their blood sugar levels. Other goals of diabetes management are to prevent or treat complications that can result from the disease itself and from its treatment.

<span class="mw-page-title-main">Dipeptidyl peptidase-4 inhibitor</span> Enzyme blocker and diabetes treatment drug

Inhibitors of dipeptidyl peptidase 4 are a class of oral hypoglycemics that block the enzyme dipeptidyl peptidase-4 (DPP-4). They can be used to treat diabetes mellitus type 2.

Alpha-glucosidase inhibitors (AGIs) are oral anti-diabetic drugs used for diabetes mellitus type 2 that work by preventing the digestion of carbohydrates. Carbohydrates are normally converted into simple sugars (monosaccharides) by alpha-glucosidase enzymes present on cells lining the intestine, enabling monosaccharides to be absorbed through the intestine. Hence, alpha-glucosidase inhibitors reduce the impact of dietary carbohydrates on blood sugar.

A diabetic diet is a diet that is used by people with diabetes mellitus or high blood sugar to minimize symptoms and dangerous complications of long-term elevations in blood sugar.

<span class="mw-page-title-main">Dapagliflozin</span> Diabetes medication

Dapagliflozin, sold under the brand names Farxiga (US) and Forxiga (EU) among others, is a medication used to treat type 2 diabetes. It is also used to treat adults with heart failure and chronic kidney disease. It reversibly inhibits sodium-glucose co-transporter 2 (SGLT-2) in the renal proximal convoluted tubule to reduce glucose reabsorption and increase urinary glucose excretion.

<span class="mw-page-title-main">Prediabetes</span> Predisease state of hyperglycemia with high risk for diabetes

Prediabetes is a component of metabolic syndrome and is characterized by elevated blood sugar levels that fall below the threshold to diagnose diabetes mellitus. It usually does not cause symptoms but people with prediabetes often have obesity, dyslipidemia with high triglycerides and/or low HDL cholesterol, and hypertension. It is also associated with increased risk for cardiovascular disease (CVD). Prediabetes is more accurately considered an early stage of diabetes as health complications associated with type 2 diabetes often occur before the diagnosis of diabetes.

<span class="mw-page-title-main">Canagliflozin</span> Chemical compound

Canagliflozin, sold under the brand name Invokana among others, is a medication used to treat type 2 diabetes. It is used together with exercise and diet. It is not recommended in type 1 diabetes. It is taken by mouth.

Empagliflozin, sold under the brand name Jardiance, among others, is an antidiabetic medication used to improve glucose control in people with type 2 diabetes. It is taken by mouth.

<span class="mw-page-title-main">Diabetes</span> Group of endocrine diseases characterized by high blood sugar levels

Diabetes mellitus, often known simply as diabetes, is a group of common endocrine diseases characterized by sustained high blood sugar levels. Diabetes is due to either the pancreas not producing enough insulin, or the cells of the body becoming unresponsive to the hormone's effects. Classic symptoms include thirst, polyuria, weight loss, and blurred vision. If left untreated, the disease can lead to various health complications, including disorders of the cardiovascular system, eye, kidney, and nerves. Diabetes accounts for approximately 4.2 million deaths every year, with an estimated 1.5 million caused by either untreated or poorly treated diabetes.

SGLT2 inhibitors are a class of medications that inhibit sodium-glucose transport proteins in the nephron, unlike SGLT1 inhibitors that perform a similar function in the intestinal mucosa. The foremost metabolic effect of this is to inhibit reabsorption of glucose in the kidney and therefore lower blood sugar. They act by inhibiting sodium/glucose cotransporter 2 (SGLT2). SGLT2 inhibitors are used in the treatment of type 2 diabetes. Apart from blood sugar control, gliflozins have been shown to provide significant cardiovascular benefit in people with type 2 diabetes. As of 2014, several medications of this class had been approved or were under development. In studies on canagliflozin, a member of this class, the medication was found to enhance blood sugar control as well as reduce body weight and systolic and diastolic blood pressure.

Bexagliflozin, sold under the brand name Brenzavvy, is an antidiabetic medication used to improve glycemic control in adults with type 2 diabetes. It is a sodium-glucose cotransporter 2 (SGLT2) inhibitor that is taken by mouth.

References

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