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Diabetes is a disease in which blood glucose levels are above normal. A person with prediabetes has a blood sugar level higher than normal, but not high enough for a diagnosis of diabetes. He or she is at higher risk for developing type 2 diabetes. Gestational diabetes is a type of diabetes that develops only during pregnancy. So how does one prevent Diabetes? Research studies have found that moderate weight loss and exercise can prevent or delay type 2 diabetes among adults at high-risk of diabetes. What is diabetes? Diabetes is a chronic disease that occurs either when the pancreas does not produce enough insulin or when the body cannot effectively use the insulin it produces. Insulin is a hormone that regulates blood sugar. Hyperglycaemia, or raised blood sugar, is a common effect of uncontrolled diabetes and over time leads to serious damage to many of the body's systems, especially the nerves and blood vessels. In 2014, 8.5% of adults aged 18 years and older had diabetes. In 2012 diabetes was the direct cause of 1.5 million deaths and high blood glucose was the cause of another 2.2 million deaths. Type 1 diabetesType 1 diabetes (previously known as insulin-dependent, juvenile or childhood-onset) is characterized by deficient insulin production and requires daily administration of insulin. The cause of type 1 diabetes is not known and it is not preventable with current medical knowledge. Symptoms include excessive excretion of urine (polyuria), thirst (polydipsia), constant hunger, weight loss, vision changes and fatigue. These symptoms may occur suddenly. Type 2 diabetesType 2 diabetes (formerly called non-insulin-dependent or adult-onset) results from the body’s ineffective use of insulin. Type 2 diabetes comprises the majority of people with diabetes around the world, and is largely the result of excess body weight and physical inactivity. Symptoms may be similar to those of Type 1 diabetes, but are often less marked. As a result, the disease may be diagnosed several years after onset, once complications have already arisen. Until recently, this type of diabetes was seen only in adults but it is now also occurring increasingly frequently in children. Gestational diabetesGestational diabetes is hyperglycaemia with blood glucose values above normal but below those diagnostic of diabetes, occurring during pregnancy. Women with gestational diabetes are at an increased risk of complications during pregnancy and at delivery. They and their children are also at increased risk of type 2 diabetes in the future. Gestational diabetes is diagnosed through prenatal screening, rather than through reported symptoms. Impaired glucose tolerance and impaired fasting glycaemiaImpaired glucose tolerance (IGT) and impaired fasting glycaemia (IFG) are intermediate conditions in the transition between normality and diabetes. People with IGT or IFG are at high risk of progressing to type 2 diabetes, although this is not inevitable. What are common consequences of diabetes? Over time, diabetes can damage the heart, blood vessels, eyes, kidneys, and nerves: - Adults with diabetes have a 2-3-fold increased risk of heart attacks and strokes. - Combined with reduced blood flow, neuropathy (nerve damage) in the feet increases the chance of foot ulcers, infection and eventual need for limb amputation. - Diabetic retinopathy is an important cause of blindness, and occurs as a result of long-term accumulated damage to the small blood vessels in the retina. 2.6% of global blindness can be attributed to diabetes. - Diabetes is among the leading causes of kidney failure. How can the burden of diabetes be reduced? PreventionSimple lifestyle measures have been shown to be effective in preventing or delaying the onset of type 2 diabetes. To help prevent type 2 diabetes and its complications, people should: - achieve and maintain healthy body weight; - be physically active – at least 30 minutes of regular, moderate-intensity activity on most days. More activity is required for weight control; - eat a healthy diet, avoiding sugar and saturated fats intake; and - avoid tobacco use – smoking increases the risk of diabetes and cardiovascular diseases. Diagnosis and treatmentEarly diagnosis can be accomplished through relatively inexpensive testing of blood sugar. Treatment of diabetes involves diet and physical activity along with lowering blood glucose and the levels of other known risk factors that damage blood vessels. Tobacco use cessation is also important to avoid complications. Interventions that are both cost-saving and feasible in developing countries include: - blood glucose control, particularly in type 1 diabetes. People with type 1 diabetes require insulin, people with type 2 diabetes can be treated with oral medication, but may also require insulin; - blood pressure control; and - foot care. - screening and treatment for retinopathy (which causes blindness); - blood lipid control (to regulate cholesterol levels); - screening for early signs of diabetes-related kidney disease and treatment. Key facts - The number of people with diabetes has risen from 108 million in 1980 to 422 million in 2014. - The global prevalence of diabetes* among adults over 18 years of age has risen from 4.7% in 1980 to 8.5% in 2014. - Diabetes prevalence has been rising more rapidly in middle- and low-income countries. - Diabetes is a major cause of blindness, kidney failure, heart attacks, stroke and lower limb amputation. - In 2012, an estimated 1.5 million deaths were directly caused by diabetes and another 2.2 million deaths were attributable to high blood glucose**. - Almost half of all deaths attributable to high blood glucose occur before the age of 70 years. WHO projects that diabetes will be the 7th leading cause of death in 2030. - Healthy diet, regular physical activity, maintaining a normal body weight and avoiding tobacco use are ways to prevent or delay the onset of type 2 diabetes. - Diabetes can be treated and its consequences avoided or delayed with diet, physical activity, medication and regular screening and treatment for complications. ** High blood glucose is defined as a distribution of fasting plasma glucose in a population that is higher than the theoretical distribution that would minimize risks to health (derived from epidemiological studies). High blood glucose is a statistical concept, not a clinical or diagnostic category. Also read: HIV Disease - An Overview of the Key Facts WHO responseWHO aims to stimulate and support the adoption of effective measures for the surveillance, prevention and control of diabetes and its complications, particularly in low and middle-income countries. To this end, WHO: - provides scientific guidelines for the prevention of major Non-Communicable Diseases (NCDs) including diabetes; - develops norms and standards for diabetes diagnosis and care; - builds awareness on the global epidemic of diabetes, marking World Diabetes Day (14 November); - conducts surveillance of diabetes and its risk factors. The WHO “Global strategy on diet, physical activity and health” complements WHO's diabetes work by focusing on population-wide approaches to promote healthy diet and regular physical activity, thereby reducing the growing global problem of overweight people and obesity. Reference(s) World Health Organization: Diabetes - WHO Fact Sheets. Accessed 07 September 2016. Available here: http://www.who.int/mediacentre/factsheets/fs312/en/ Centers for Disease Control: Diabetes. Accessed 08 September 2016. Available here: http://www.cdc.gov/diabetes/home/index.html Wikipedia, the Free Encyclopedia: Diabetes Mellitus. Accessed 10 September 2016. Available here: https://en.wikipedia.org/wiki/Diabetes_mellitus
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Šećerna bolest tipa 2 Javlja se kada gušterača ne proizvodi dovoljno inzulina da bi se održala normalna razina glukoze u krvi ili kada tijelo ne može učinkovito iskoristiti inzulin koji proizvodi gušterača (“otpornost na inzulin”), izazivajući hiperglikemiju. Taj je tip šećerne bolesti usko povezan s pretilošću i češći je u starijih. Šećerna bolest tipa 2 još je relativno rijetka u djece. Šećerna bolest tipa 2 progresivna je, no u mnogim ju je slučajevima moguće držati pod nadzorom zdravom prehranom, tjelovježbom i promjenama životnih navika. Gestacijski dijabetes Gestacijski dijabetes je naziv za hiperglikemiju otkrivenu kod trudnice koja do tada nije bolovala od šećerne bolesti, a hiperglikemija prestaje nakon trudnoće. Ako hiperglikemija traje i nakon poroda tada se u trudnoći radilo o novootkrivenoj šećernoj bolesti. Kronične komplikacije Nakon određenog broja godina s dijabetesom u nekih se ljudi razviju određeni karakteristični problemi s očima, bubrezima, živcima i nogama. Osjetljivost na srčane bolesti i visoki krvni tlak također je povećana. Da bi se pomoglo spriječiti takve komplikacije, važno je održavati šećer u krvi što je bliže moguće normalnim vrijednostima. Liječenje dijabetesa U liječenju šečerne bolesti posebno mjesto zauzima edukacija, samokontrola i samozbrinjavanje. Bolest se liječi pravilnom prehranom i tjelovježbom, nakon čega nastupa liječenje lijekovima (oralnim antidijabeticima, GLP- analozima i inzulinima) Zdrava je prehrana važna i ne zaboravite redovito vježbati. Također trebate učiti o dijabetesu, kako mjeriti šećer u krvi i kako primjereno reagirati na očitanja šećera u krvi.