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Biomedical subjects

Kishore Phadke

Publications and source records attributed to Kishore Phadke.

7 recordsLinked to original sources

Effects of maternal vitamin A status on kidney development: a pilot study.

Nephron endowment ranges widely in normal human populations. Recent autopsy studies have drawn attention to the possibility that subtle congenital nephron deficits may be associated with increased risk of developing hypertension later in life. Since modest maternal vitamin A deficiency reduces nephron number in rats, we designed a pilot study to determine the prevalence of maternal vitamin A deficiency in Montreal (Canada) and Bangalore (India) and the usefulness of newborn renal volume as a surrogate for nephron endowment. Among 48 pregnant Montreal women, two (4%) had one isolated mid-gestation retinol level slightly below the accepted limit of normal (0.9 mumol/L), whereas 25 (55%) of 46 pregnant women in Bangalore had at least one sample below this limit. Average estimated retinoid intake was correlated with mean serum retinol in pregnant women from Bangalore. In Montreal where maternal vitamin A deficiency was negligible, we found that newborn renal volume (estimated by renal ultrasonography at 2-6 weeks of age) was correlated with surface area at birth and was inversely correlated with serum creatinine at 1 month. Interestingly, renal volume adjusted for body surface area in Montreal (184+/-44 ml/m(2)) was significantly greater than in Bangalore (114+/-33 ml/m(2)) (p<0.01). Definitive studies are needed to establish whether maternal vitamin A deficiency accounts for subtle renal hypoplasia in Indian newborns. If so, there may be important public health implications for regions of the world where maternal vitamin A deficiency is prevalent.

Canada↗

Steroid sparing effect of a herbal preparation in steroid-dependent nephrotic syndrome.

Investigations on plants are revealing the potential therapeutic benefits of medicinal herbs in treating immunological disorders. Nephrotic syndrome has emerged as an immunological disorder. Steroid dependence poses a therapeutic challenge in the management of nephrotic syndrome. Our pilot study compares the efficacy of an ayurvedic polyherbal preparation 'Shathavaryadi Yoga (NS001)' with oral cyclophosphamide in maintaining remission in steroid-dependent nephrotic syndrome.

Adult↗

Cyclosporine in steroid dependent and resistant childhood nephrotic syndrome.

OBJECTIVE: To evaluate the efficacy of cyclosporine (CyA) monotherapy in steroid resistant (SRNS) and steroid dependent (SDNS) nephrotic syndrome in children. DESIGN: A retrospective study. SETTING: Tertiary kidney care center for children at Bangalore. METHODS: Forty-one children with SDNS and SRNS with normal renal functions were treated with CyA at a dose of 6 mg/kg/day initially and maintained at 3 to 4 mg/kg/day if remission was sustained. The dosage was adjusted according to the CyA blood levels in non-responders. RESULTS: The median age of patients was 93 months (range 48-936) months. Thirteen children had minimal change disease (MCNS), 10 had mesangial proliferative glomerulonephritis (GN). Ten had membrano-proliferative (GN) (MPGN) and 8 had focal segmental glomerulosclerosis (FSGS). Median age at onset of disease and median time for CyA usage from disease onset was 22 months and 16 months respectively. Median duration of CyA therapy was 24 months (range 6-72) months. The data was analyzed to determine significance of variables on the outcome. Median follow up was 71 months (range 20-205) months. Eleven children were CyA resistant. Of the remaining 30 who were CyA responders, 22 (73.33%) were CyA dependent. Seven children developed chronic renal failure (CRF). CONCLUSIONS: The predictors for CyA non-responsiveness were steroid resistance, non MCNS on biopsy and longer duration between onset of nephrotic syndrome and CyA usage, irrespective of the age of onset of the disease. There was a higher incidence of CyA dependence among young responders. Patients with CyA resistance are at high risk for significant infections and CRF.

Case-Control Studies↗

Pediatric renal transplantation: the Bangalore experience.

A retrospective analysis was done on 47 pediatric renal transplants performed over last 16 years at Bangalore, Karnataka. The median age and weight of the recipients at transplantation were 120 months and 21 kg respectively; male to female ratio was 30 to 17. Twenty two children had underlying glomerular disease and 23 had tubulointerstitial disease. Preemptive transplantation was done in 33.3% of patients, 57.2% received hemodialysis and 9.5% received peritoneal dialysis prior to transplantation. The mean duration of dialysis was 2.6 months. The most common source of donor organ was the mother. Immunosuppression medications included cyclosporine, azathioprine, and corticosteroids. Graft survival at 1 year, 5 years, and 10 years was 80%, 45.8% and 37.5% respectively. Renal transplantation is the most optimal way to manage children with ESRD with satisfactory long term results.

Cadaver↗

Training in pediatric nephrology for developing countries.

During recent years, there has been an increasing demand for specialized care for children with kidney diseases, even in developing countries with limited resources. It is imperative to provide suitable facilities for appropriate and relevant training in pediatric nephrology to promote growth of pediatric nephrology in these areas. The training should give emphasis on preventive aspects, early diagnosis of common diseases and their optimum management with available resources. It should focus on locally prevalent renal diseases. The training programs should take into consideration the socioeconomic and cultural framework of the local community when designing curricula. To overcome the shortage of pediatric nephrology health professionals in the developing countries, the International Pediatric Nephrology Association has taken initiatives to support development of such training programs.

Developing Countries↗

Catastrophic antiphospholipid antibody syndrome.

Antiphospholipid antibody syndrome (APS) is characterized by recurrent thrombosis with the presence of circulating antiphospholipid antibodies. A diagnosis of APS requires the presence of at least one clinical and one laboratory criteria (detection of aCL IgG or IgM antibodies or the presence of lupus anticoagulant on two or more consecutive occasions 6 weeks apart). A severe, rapidly progressive form characterized by clinical involvement of at least three different organ systems with histopathological evidence of small and large vessel occlusion is termed catastrophic antiphospholipid syndrome. Early recognition of APS is crucial since aggressive management can result in a favorable outcome. We present the case of a 12-year-old boy who presented with a devastating illness with multiple thrombotic episodes and rapidly progressive renal failure.

Acute Kidney Injury↗