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Thoracic kidney is the rarest, usually asymptomatic type of kidney ectopia. 2 cases of thoracic kidney discovered incidentally through chest radiography are reported. In both patients renal function tests were normal and no further treatment was necessary. Ultrasonography and computed tomography studies performed for confirmation of the diagnosis are presented. An embryonic background of this abnormality is discussed.
The experiment was carried out on 90 Swiss male mice divided into 9 groups (n=10). Over 4, 10 and 14 days mice of three control groups (I-III) were injected with 250 μl 0.9% NaCl solution daily, and those from six experimental groups (A-F) with 250 μl 0.9% NaCl solution containing 20 or 30 mg morphine hydrochloride per kg body weight. The injections were given intramuscularly once a day between 9:00-10:00 a.m. for 4, 10 and 14 days. In the lysosomal fraction of the liver and kidney the activities of acid phosphatase, lysosomal esterase, β-glucuronidase, β-galactosidase, and β-N-acetyl-hexosaminidase were estimated. Morphine increased the activity of all examined enzymes except EL, which activity was statistically proven to decrease in liver and kidneys after 10 days morphine administration in both doses.
Amyloidosis is a disease caused by the deposition of amorphous extracellular protein, leading to impaired kidney function. Canine and feline amyloidosis is associated with the deposition of AA protein. The disease is hereditary and is related to breed but not sex. Predisposed breeds include the Shar Pei dog and Abyssinian cat. Proteinuria resulting in hypoalbuminemia due to changes in renal glomeruli is the first clinical sign. In addition, a decreased appetite, anorexia, vomiting, lethargy, polyuria and polydipsia may be observed. In order to diagnose the disease, serum amyloid A levels may be measured. However, a definitive diagnosis is made on the basis of an intravital renal biopsy and the presence of amyloid in the histopathological examination. The main goal of treatment is to reduce inflammation and proteinuria. If nephrotic syndrome occurs, the prognosis is guarded to poor, and the majority of patients do not survive one year. The definitive diagnosis is based on the post-mortem examination, in which the presence of amyloid deposits is confirmed in the kidney tissue. We present the case of a 7-year-old female Shar Pei diagnosed with kidney amyloidosis, on the basis of which we have developed a prevention scheme for clinical practice.
A number of studies have shown that acute physical exercise is associated with the induction of apoptosis not only in skeletal muscle but also in many distant organs. One of the pathogenic agents responsible for exercise-induced damage in many tissues is the generation of oxygen free radicals. The aim of the present study was to examine the influence of exercise-induced oxidative stress on the rat kidney. The analysis was performed on the kidneys of rats subjected to treadmill running until exhaustion. Our results demonstrated that acute exercise led to apoptotic damage of the renal distal tubular cells, although this was not a result of oxidative stress.
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