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  Diabetes >> Glycosuria >> Glycosuria Causes

Glycosuria Causes

The suspected causes of renal glycosuria can be that the level of blood glucose could get too high due to which the renal tubules cannot reabsorb it completely or, there might be failure of the tubules to reabsorb all the glucose. Thyrotoxicosis, Acromegaly, Cushing's syndrome, Rapid gastric emptying (dumping syndrome) and peptic ulcers, all these can raise blood glucose above the threshold. Stress hormones elevate blood glucose and in a severely ill patient they may even elevate glucose, beyond the renal threshold.

Secondary causes elevating urine sugar level (temporarily) are as stated below-

  • Pregnancy: During pregnancy there is increased renal blood flow, leading to lowered renal threshold
  • Oculocerebrorenal Dystrophy (Lowe syndrome)
  • Cystinosis
  • Wilson's disease
  • Interstitial nephrities
  • Hereditary tyrosinaemia
  • Heavy metal poisoning such as lead, mercury or with old tetracycline
  • Intestinal glucose-galactose malabsorption

Glycosuria occurs without significant pathology and is mainly bifurcated into 3 categories:-

  • Type A :- it is classical glycosuria, with decline in both, glucose threshold and maximal glucose reabsorption rate.
  • Type B :- There is a decline in the glucose threshold and a normal rate of reabsorption.
  • Type O :-There is failure of glucose reabsorption. Plasma glucose, glucose tolerance test, insulin levels and HbA1C, all are normal.

Mainly for the affected individuals, this condition causes no visible signs and symptoms or serious effects, but it is a marker for detecting the status of kidney and a diabetic.

Synonyms of glycosuria are listed below

  • Benign glycosuria
  • Familial renal glycosuria
  • Nondiabetic glycosuria
  • Primary renal glycosuria
  • Diabetes renalis
  • Renal diabetes

Glycosuria Causes

by rajesh Date Added: Fri 15 October, 2010
if blood sugar level 148 mg/dl and urine suger level++++ after ppbs test.
blood sugar level 100mg/dl and urine sugar level -nil after fbs test .so Is this condition as a diabeatic or not ? Is it a kindey renal absorb insufficiency ?

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