Diabetes Mellitus Type 1
Diabetes mellitus is characterized by high blood sugar. Referred to as diabetes, this disease affects millions worldwide. Left untreated, diabetes can lead to blindness, diabetic neuropathy and kidney failure. Diabetes is most often a chronic medical condition that needs constant monitoring and control. Diabetes can be of 2 types - Type 1 and diabetes type 2. Type 1 diabetes is called juvenile-onset diabetes or insulin-dependent diabetes. Complications that can arise with Type 1 diabetes are hypoglycemia and hyperglycemia. Left untreated, it can lead to ketoacidosis.
Often this type of diabetes is inherited. Diabetes mellitus type 1 is seen in children and young adults. A person suffering from diabetes type 1 is insulin dependent. Diabetes mellitus type 1 is characterized by insufficient production of insulin by the pancreas. This can occur due to an auto immune condition or it can also be idiopathic in nature. Insulin is critical to the absorption of sugar by the body. As a result, blood and urine levels of sugar rise. Type 1 diabetes also affects fat metabolism. While most cases of type 1 diabetes have a genetic predisposition, certain environmental factors trigger it off.
Symptoms of diabetes type 1 are excessive thirst and urination. Other symptoms include blurred vision, dramatic weight loss, irritability, weakness and fatigue. Diabetes mellitus type 1 leads to excessive hunger. Girls may notice vaginal yeast infection. A doctor may prescribe changes in eating habits and maintenance of body weight. Regular exercise regimen is suggested to keep diabetes under check. Daily dose of insulin is needed for persons who suffer type 1 diabetes. Persons suffering from this form of diabetes are advised to monitor blood levels of sugar as well as urine levels of ketone.
Gestational diabetes insipidus occurs during pregnancy. This is a type of diabetes and about 2-10 percent of expectant mothers develop this condition. When pregnant, hormonal changes make your cells less responsive to insulin. But during pregnancy, the pancreas cannot keep up with the increased insulin demand, and hence blood glucose levels rise resulting in gestational diabetes.
Significantly, most women with gestational diabetes do not remain diabetic after the baby is born. Once you've had gestational diabetes, though, you are at higher risk during a future pregnancy and for developing diabetes later in life.
Symptoms of gestational diabetes
There are no symptoms and that is perhaps why all pregnant women have to undergo a glucose screening test between 24 and 28 weeks. If you are at a high risk for diabetes and are showing signs of it, then the doctor would recommend this screening test at the first prenatal visit and then repeat at 24 weeks, the initial test being negative. Follow up tests are done to find out if the result on glucose screening is positive.
High risk factors for gestational diabetes
The American Diabetes Association prescribes the following condition for early screening, in case of high risk namely:
Obesity and BMI over 30
If you have had gestational diabetes in previous pregnancy
If the urine has sugar and
If you have a strong family history of diabetes.
Other risk factors
If earlier delivery was a big baby
If you have had a stillbirth
If you have high blood pressure and
If you are over 35.
An association between excessive weight gain during pregnancy, particularly in the first trimester and risk of gestational diabetes has been established.
Gestational diabetes: Pregnancy and baby
Poorly controlled diabetes may have short and long term consequences for you and your baby. If blood sugar levels are too high, the baby's blood may have too much glucose. The excess blood sugar and insulin can cause the baby to put on extra weight particularly in the upper body. This can lead to a condition called macrosomia. This baby may be too large to enter the birth canal or the baby's head may enter but shoulder may get stuck. This is a tricky condition called dystocia and the doctor has to use special procedures to deliver the baby.
Sometimes delivery of such babies may result in fractured bone or nerve damage which could become permanent in 99% of babies. It is better that babies of mothers with gestational diabetes, check their blood sugar regularly and breast feed the baby immediately after birth to prevent or correct hypoglycemia.
Such babies with hypoglycemia at birth are given IV glucose solution. Testing the baby's sugar and providing an IV if necessary can prevent serious problems such as coma, brain damage and seizures. The baby also exhibits high risk for breathing problems and newborn jaundice. In addition, the baby is also at risk for polycythemia or increase in the number of red cells in the blood and hypocalcaemia or low calcium in the blood. Women with gestational diabetes are at an increased risk of developing Preeclampsia, particularly those who are obese before pregnancy and blood sugar levels are uncontrolled.
Diabetes Insipidus or DI has nothing to do with diabetes mellitus or sugar diabetes. Diabetes insipidus is a condition that is characterized by intense thirst and polyuria or excretion of large amounts of urine. In sharp contrast to diabetes mellitus which results in sweet tasting urine, diabetes insipidus creates watery, flavor-free urine.
DI is a condition that occurs when the kidneys cannot conserve water when they perform their function of filtering blood. In other words, DI is a condition in which the body cannot retain enough water, a peculiar condition as the patient is excessively thirsty and excretes large amounts of extremely diluted urine. Significantly, a reduction in fluid intake does not reduce amounts and consistency of urine excretion. About 1 in every 25,000 people is affected by this condition in the US.
Diabetes Insipidus Classification
Neurogenic Diabetes Insipidus, when there is a deficiency of ADH (Anti Diuretic Hormone)
Nephrogenic Diabetes Insipidus, when kidneys are insensitive to ADH and
Gestational Diabetes Insipidus, which is very rare DI that occurs during pregnancy.
Antidiuretic hormone, ADH, also called vasopressin, is produced in the hypothalamus region of the brain. Lack of ADH causes central diabetes insipidus. Similarly, DI caused by a failure of kidneys to respond to ADH is called nephrogenic diabetes insipidus.
Causes and symptoms of central diabetes insipidus
Any damage to the pituitary gland as a result of possible head injury, infection, loss in the supply of blood to the gland, surgery and tumor can cause central diabetes insipidus. In some cases, it could be hereditary. Symptoms of DI are excessive thirst and excessive urination. Other common symptoms include Nocturia, bed wetting and feeling run down.
Diagnosis of Diabetes Insipidus
MRI of the head, urine analysis and urine output are the diagnostic tests performed to detect DI. Water deprivation test is done, when the patient stops drinking liquids for about two to three hours before starting the test. The doctor measures the alterations in body weight and urine output and composition. Urine analysis is done when the physical chemical content of urine is examined. If urine water content is high and salt and waste concentrations are low, then the patient suffers diabetes insipidus. ADH hormone test after the water deprivation test is done, and the doctor gives a small dose of ADH usually in the form of injection, to study how the patient reacts to the hormone. Genetic screening is recommended if an inherited form of DI is suspected.
Treatment of DI
Vasopressin, either as tablets or as nasal spray is prescribed for central diabetes insipidus. As such, if treated, diabetes insipidus does not cause severe problems or reduce life expectancy. To combat the dehydration problem caused by DI, enough fluids should be consumed. This will offset the effects caused on body fluid or salt balance. If enough fluid is not taken, it can lead to dehydration and electrolyte imbalance.
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Bibliography / Reference
Collection of Pages - Last revised Date: December 6, 2023