gestational diabetes : TYPES OF DIABETES.
According to the World Health Organization (WHO), five classes of diabetes are recognized, these are; Insulin Dependent Diabetes Mellitus (IDDM) or Type I Diabetes, Non Insulin Dependent Diabetes Mellitus (NIDDM) or Type II Diabetes, Gestational Diabetes, Diabetes Insipidus and Bronze Diabetes.
INSULIN DEPENDENT/TYPE I DIABETES: This type of diabetes was initially called Juvenile onset diabetes because it affects adolescents and young adults. It is caused by a sudden failure of the pancreas to produce Insulin. It is, therefore, an acute disease, presenting with thirst, polyuria (passing large amount of urine), diuresis and weight loss. Type I diabetes is not common, it accounts for less than 10% of all diabetes cases.
NON-INSULIN DEPENDENT/ TYPE II DIABETES: This is the most prevalent type of diabetes, accounting for more than 80% of all diabetic cases. It is found in adults and the elderly. This type of diabetes develops gradually over a long period of time (unnoticed) and is characterized by insufficient insulin, deficient insulin in the blood or the inability of the body to utilize the insulin resent (Insulin resistance). Because of its slow and gradual occurrence, it is mostly undetected until one or more of its long-term complications appear.
Unlike in Type I Diabetes, the Insulin in the blood of a Type II diabetic may be normal or even high, but lacks the desired effect, due to insulin resistance, and this is prevalent among obese people.
GESTATIONAL DIABETES: This type of diabetes occurs during pregnancy and disappears after delivery, within 3weeks. An estimated 3% of all pregnancies are accompanied by
gestational diabetes and almost half of these patients are prone to developing permanent diabetes later in life. WHAT CAUSES DIABETES.
As with hypertension and other non communicable diseases, no clear cut cause(s) can be attributed to the most prevalent type of diabetes (Type II Diabetes, Type I diabetes being secondary to failure of the pancreas). However, some factors are known to increase one’s chances of becoming diabetic and these are called risk factors. For example, indolent and well-fed populations are 2 – 20times more likely to develop type II diabetes than active and lean population of the same race. Some other factors known to increase one chances of getting diabetes include:
OBESITY: It is estimated that three quarter (¾) of all Type II diabetes patient are obese. Indolent and affluent lifestyles tend to contribute to this. It is believed that a 10kg loss of weight can reduce fasting blood sugar level by almost 50md/dl. An active lifestyle with frequent exercise is also known to increase Insulin sensitivity.
The International standard for measuring overweight and obesity is based on a value called BODY MASS INDEX (BMI). This value is derived by dividing the body weight (in Kilograms) by the square of height (in metres).
i.e. BMI = Body weight (Kg) / Height2 (Metres).
Note: 1ft = 0.305metres.
For adults, a BMI less than 25kg/m2 is preferred.
25 – 29kg/m2 is considered overweight and above 30kg/m2 is Obesity.
By Kazeem Adefemi
