Causes of Hair Loss

Written by Karen Brown


Continued from page 1

Depending onrepparttar reasons for hair loss, there are different methods to attempt to treat this condition; however, it is important to first recognizerepparttar 113905 cause of hair loss in order to discern which type of treatment to use, if any. For example, ifrepparttar 113906 cause of hair loss is a disease, or treatment for a disease, like inrepparttar 113907 case of using chemotherapy to treat cancer, then a treatment may not aid inrepparttar 113908 prevention of hair loss. Yet, ifrepparttar 113909 cause of hair loss is from stress, then attempts may be made to prevent stress and treatment products may be used to repair already damaged hair.

Overall, hair loss, no matter whatrepparttar 113910 cause, is a difficult matter to confront. Knowingrepparttar 113911 cause of hair loss, however, may contribute torepparttar 113912 prevention/treatment of hair loss. Individuals may not have control over why they are losing hair – from heredity to aging – yet they may findrepparttar 113913 necessary means to attempt to treatrepparttar 113914 damaged hair. The multiple factors contributing to hair loss makerepparttar 113915 task of undertakingrepparttar 113916 treatment of hair loss difficult, but not impossible. Even inrepparttar 113917 most extreme cases, there is usually a solution forrepparttar 113918 cause.

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THE ETIOLOGY OF DIABETES MELLITUS

Written by Wong Hon Long


Continued from page 1

The etiology of type II diabetes mellitus (non-insulin- dependent diabetes mellitus, NIDDM) is even less clearly understood. Two factors have been identified:

a) Impaired insulin release-basal secretion of insulin is often normal, butrepparttar rapid release of insulin follows a meal is greatly impaired, resulting in failure of normal handling of a carbohydrate load. In most patients, some level of insulin secretion is maintained, so thatrepparttar 113904 abnormality of glucose metabolism is limited and ketoacidosis is uncommon. In these patients, insulin secretion can be stimulated by drugs such as sulfonylureas. Exogenous insulin is therefore not essential in treatment. It also have been suggested that inheritance of a defective pattern of insulin secretion is responsible forrepparttar 113905 familial tendency of diabetes. The genetic factor is very strong in type II diabetes, with a history of diabetes present in about 50% of first degree relatives.

b) Insulin resistance-a defect inrepparttar 113906 tissue response to insulin is believed to play a major role. This phenomenon is called insulin resistance and is caused by defective insulin receptors onrepparttar 113907 target cells. Insulin resistance occurs in association with obesity and pregnancy. In normal individuals who become obese or pregnant,repparttar 113908 B cells secrete increased amounts of insulin to compensate. Patients who have genetic susceptibility to diabetes cannot compensate because of their inherent defect in insulin secretion. Thus, type II diabetes is frequently precipitated by obesity and pregnancy. In a few patients with extreme insulin resistance, antibodies againstrepparttar 113909 receptors have been demonstrated in plasma. These antibodies are mostly ofrepparttar 113910 IgG class and act againstrepparttar 113911 insulin receptors, causingrepparttar 113912 decreased numbers of insulin receptors and defective binding of insulin to receptors.

Other specific types of diabetes mellitus includes maturity-onset diabetes ofrepparttar 113913 young (MODY), diabetes due to mutant insulin, diabetes due to mutant insulin receptors, diabetes mellitus associated with a mutation of mitochondrial DNA and obese type 2 patients.

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