Diabetes Disease

What is Diabetes?

Diabetes is a chronic health condition that affects how your body turns food into energy. It occurs when your blood glucose (blood sugar) is too high.

Types of Diabetes

1. Type 1 Diabetes

• Autoimmune condition: The immune system attacks and destroys insulin-producing cells in the pancreas.
• Insulin-dependent: Patients need to take insulin regularly.
• Commonly diagnosed in children and young adults.

2. Type 2 Diabetes

• Most common type: Represents the majority of diabetes cases.
• Insulin resistance: The body does not use insulin properly.
• Risk factors: Obesity, sedentary lifestyle, genetics, and age.

3. Gestational Diabetes

• Occurs during pregnancy: Can develop in women who did not previously have diabetes.
• Usually temporary: Typically resolves after childbirth, but increases the risk of developing type 2 diabetes later.

Symptoms of Diabetes

• Frequent urination
• Increased thirst
• Unexplained weight loss
• Fatigue
• Blurred vision
• Slow-healing sores

Causes and Risk Factors

• Genetics: Family history increases the likelihood.
• Lifestyle factors: Diet, physical inactivity, and obesity contribute to type 2 diabetes.
• Autoimmune response: Causes type 1 diabetes when the immune system mistakenly attacks insulin-producing cells.

Management and Treatment

Type 1 Diabetes

• Insulin therapy: Essential for survival.
• Blood sugar monitoring: Regular checks to manage levels.
• Healthy diet and exercise: Supports overall health.

Type 2 Diabetes

• Lifestyle changes: Diet, exercise, and weight management.
• Medications: Oral drugs or insulin may be needed.
• Monitoring blood glucose: Helps in adjusting treatment.

Gestational Diabetes

• Special meal plans and regular physical activity.
• Monitoring blood sugar to prevent complications.

Complications of Diabetes

• Cardiovascular disease: Increased risk of heart attack and stroke.
• Nerve damage (neuropathy): Can cause pain and numbness.
• Kidney damage (nephropathy): Potential kidney failure.
• Eye damage: Risk of blindness due to retinopathy.
• Foot damage: Poor blood flow and neuropathy can lead to amputations.

References & Research

Historical Background

Diabetes has been known since antiquity -- the term "diabetes" was coined by the Greek physician Aretaeus of Cappadocia in the 2nd century AD. The distinction between type 1 and type 2 diabetes was established by Harold Himsworth in 1936. The discovery of insulin by Frederick Banting and Charles Best in 1921 at the University of Toronto remains one of the most transformative breakthroughs in medical history, earning the Nobel Prize in 1923.

Key Research Papers

1. The Diabetes Control and Complications Trial Research Group. The effect of intensive treatment of diabetes on the development and progression of long-term complications in insulin-dependent diabetes mellitus. N Engl J Med. 1993;329(14):977-986.
2. UK Prospective Diabetes Study (UKPDS) Group. Intensive blood-glucose control with sulphonylureas or insulin compared with conventional treatment and risk of complications in patients with type 2 diabetes (UKPDS 33). Lancet. 1998;352(9131):837-853.
3. ADVANCE Collaborative Group. Intensive blood glucose control and vascular outcomes in patients with type 2 diabetes. N Engl J Med. 2008;358(24):2560-2572.
4. Zinman B, Wanner C, Lachin JM, et al. Empagliflozin, cardiovascular outcomes, and mortality in type 2 diabetes (EMPA-REG OUTCOME). N Engl J Med. 2015;373(22):2117-2128.
5. Marso SP, Daniels GH, Poulter NR, et al. Liraglutide and cardiovascular outcomes in type 2 diabetes (LEADER). N Engl J Med. 2016;375(4):311-322.
6. Knowler WC, Barrett-Connor E, Fowler SE, et al. Reduction in the incidence of type 2 diabetes with lifestyle intervention or metformin (Diabetes Prevention Program). N Engl J Med. 2002;346(6):393-403.
7. American Diabetes Association. Standards of Medical Care in Diabetes -- 2020. Diabetes Care. 2020;43(Suppl 1):S1-S212.
8. Neal B, Perkovic V, Mahaffey KW, et al. Canagliflozin and cardiovascular and renal events in type 2 diabetes (CANVAS Program). N Engl J Med. 2017;377(7):644-657.
9. Tuomilehto J, Lindstrom J, Eriksson JG, et al. Prevention of type 2 diabetes mellitus by changes in lifestyle among subjects with impaired glucose tolerance (Finnish Diabetes Prevention Study). N Engl J Med. 2001;344(18):1343-1350.
10. Inzucchi SE, Bergenstal RM, Buse JB, et al. Management of hyperglycemia in type 2 diabetes, 2015: a patient-centered approach. Diabetes Care. 2015;38(1):140-149.
11. NCD Risk Factor Collaboration. Worldwide trends in diabetes since 1980: a pooled analysis of 751 population-based studies. Lancet. 2016;387(10027):1513-1530.
12. Gerstein HC, Colhoun HM, Dagenais GR, et al. Dulaglutide and cardiovascular outcomes in type 2 diabetes (REWIND). Lancet. 2019;394(10193):121-130.

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