We have previously demonstrated that nitric oxide (NO) exerts a greater modulatory influence on renal cortical blood flow in ANG II-infused hypertensive rats compared with normotensive rats. In the present study, we determined nitric oxide synthase (NOS) activities and protein levels in the renal cortex and medulla of normotensive and ANG II-infused hypertensive rats. Enzyme activity was determ...

The effects of essential fatty acid (EFA) deprivation on the arachidonate content and phospholipid composition of different tissues are quite diverse. When C57B1 mice were placed on a fat-free diet, hepatic liquids were readily depleted of arachidonate. In contrast, the renal cortex tenaciously retained arachidonate, whereas surprisingly the heart showed a doubling of its content of arachidonat...

An 11-year-old obese male was involved in an all-terrain vehicle rollover accident. He had elevated transaminase levels along with a lactic acidosis. The imaging studies did not reveal any major intra-abdominal or thoracic injuries. The physical exam was unremarkable. The patient had an unremarkable PICU course and was transferred to the floor the next day. Within 24 hours of his transfer, he w...

A 43-year-old male renal allograft recipient was admitted to the hospital for annual check-up. He received a cadaveric renal transplant 2 years previously. On admission his physical examination did not show any abnormalities. Abdominal ultrasonography of the patient revealed a mass lesion in the upper pole of the right native kidney in 37 39 40mm in dimensions. The native kidneys were atrophic ...

Bartonella henselae is a gram-negative facultative intracellular bacterium and is the causative agent of cat-scratch disease. Our previous data have established that Bacteroides fragilis colonization is able to prevent B. henselae damages through the polysaccharide A (PSA) in an experimental murine model. In order to determine whether the PSA is essential for the protection against pathogenic e...

A 31-year-oldwoman (Figure 1: III-1) was evaluated for mild renal failure. The serum creatinine was 1.5 mg/dL and the creatinine clearance 55 mL/min (Cockcroft formula). The blood urea nitrogen and urate levels were 52 and 4.8 mg/dL, respectively. There was a mild microalbuminuria (57 mg/24 h); urinalysis was unremarkable. Renal ultrasonography showed a right kidney of 9.5 cm and a left kidney ...

Most patients with pulmonary hydatidosis are children. The disease may be asymptomatic or revealed by unusual events such as a glomerulopathy. An 8-year-old boy from a rural part of Tunisia presented with generalised oedema and macroscopic haematuria. There was no familial history of renal disease. He had a normal blood pressure (100/60 mmHg), and a pleural effusion was detected. Urinalysis sho...

Accumulating evidence indicates cyclooxygenase (COX) 1 and COX2 differentially regulate cardiovascular and renal function. We have demonstrated previously in mice that COX2 inhibition enhances angiotensin II-induced hypertension, and COX1 inhibition attenuates the pressor effect of angiotensin II. To further elucidate the mechanism underlying the functional difference of COX1 versus COX2 inhibi...

AlphaB-crystallin and heat shock protein (hsp) 25 are structurally and functionally related small stress proteins induced by a variety of insults, including heat and ischemia. Cytoprotection by these two hsp is thought to result from molecular chaperoning and/or cytoskeletal stabilization. Because renal ischemia is characterized by disruption of the renal tubular cell actin cytoskeleton, this s...

ed with poor feeding, respiratory distress and decreased urine output. He was noted to be in the 1st percentile for weight, and 60th percentile for height. At admission he was hypertensive with systolic blood pressures ranging from 107-124 mmHg and diastolic pressures of 6672 mmHg. Physical exam was remarkable for fussiness and decreased musculoskeletal tone for age. Labs demonstrated hemoglobi...