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Biomedical subjects

V Kher

Publications and source records attributed to V Kher.

At least 55 records · Page 3Linked to original sources
PubMed1993

Prolonged peritoneal dialysis in acute renal failure using Tenckhoff catheter.

The changing spectrum of acute renal failure (ARF), in children has necessitated the support by peritoneal dialysis (PD) for a longer duration. Use of permanent catheters like Tenckhoff catheter can overcome many of the problems associated with the prolonged use of temporary catheters. Thirty one infants and children with mean (SD) age of 49.3(39.4) months were subjected to PD using surgically placed Tenckhoff catheter. Catheters were put under general anesthesia in 28 patients and under local anesthesia in 3 patients. The technique of catheter insertion has been described in detail. All the catheters, except one, functioned immediately after the insertion. There was no intraperitoneal hemorrhage, dialysate leak or poor catheter drainage. The mean (SD) duration of catheter placement for PD was 11.3 (16.1) days (range 2.90 days). There were 6 episodes of infections (19.2%), peritonitis in 4 (12.8%) and exit site infection in 2 (6.4%). In 2 patients, infection episodes did not respond to antibiotics and the catheter had to be removed. There was no mortality due to complications of PD procedure and catheter insertion. Acute intermittent PD using surgically placed Tenckoff catheter was done safely for prolonged duration and also had additional advantages of good catheter drainage and no intraperitoneal hemorrhage.

Acute Kidney Injury↗
PubMed1993

Acute renal failure in the elderly: experience from a single centre in India.

A total of 139 patients with acute renal failure (ARF) were studied, of which 41 (29.4%) were elderly with mean age of 67.1 years and 98 (70.6%) were younger with mean age of 32.3 years. Surgical causes accounted for 65% of geriatric ARF while medical causes were predominant in the younger patients (55.1%). Amongst the surgical causes, prostate-related problems due to obstruction or following transurethral resection of prostate were seen in 20 patients (74%). Drugs and sepsis were the predominant causes of medical ARF in the geriatric patients (85.7%). Of all the causes of geriatric ARF, which included both medical and surgical, nephrotoxic drugs either alone or in combination with other predisposing factors were the cause in 22 (51%) patients. Haemodialysis was needed in 15 of geriatric (36.6%) and 64 of younger (65.3%) ARF patients. Recovery from ARF, as evidenced by normalization of serum creatinine, was delayed in the elderly as compared to the younger patients (32.0 versus 11.4 days, P < 0.001). Mortality, though higher in the elderly as compared to the younger patients, was not significantly different (9.75% versus 6.1%).

Acute Kidney Injury↗
PubMed1992

Prevalence of antibodies to hepatitis C virus in HBsAg negative hemodialysis patients.

The prevalence of hepatitis C virus (HCV) infection was estimated in a 14-month study using anti-C100-3 antibody assay in 31 HBsAg negative patients on maintenance hemodialysis (MHD) for > or = 3 months. One and three patients respectively had ALT elevation and anti-HCV positivity at entry. During MHD (mean period of follow up 9.9 mo), 11 (35.5%) patients had, on fortnightly estimation, ALT elevation which lasted for < or = 6 months in seven patients and for > 6 months in four. Fourteen (45.2%) patients had anti-HCV (including the three positive at entry). There was no significant difference in frequency of anti-HCV positivity in patients with normal and elevated ALT (57.1% and 42.9% respectively). The number of blood transfusions and duration of MHD were similar in anti-HCV positive and anti-HCV negative patients. We conclude that our MHD patients have a high frequency of hepatitis and anti-HCV positivity, and these may not be related to blood transfusions.

Adult↗
PubMed1986

Protective effect of polyunsaturated fatty acid supplementation in apoferritin induced murine glomerulonephritis.

The effects of increasing two dietary polyunsaturated fatty acids, eicosapentaenoic and linoleic, on the glomerulonephritis induced by repeated injections of apoferritin in the mouse were studied. Urinary protein excretion was measured serially; serum creatinine, aortic and renal production of eicosanoids and kidney histology were measured at sacrifice at 8 weeks. Both high EPA and LA feedings were associated with lesser proteinuria, normalization of renal function and profound changes in the tissue production of prostaglandin and thromboxane, which may explain their protective effect in this model of renal disease.

Animals↗
PubMed1985

Effects of dietary linoleic acid enrichment on induction of immune complex nephritis in mice.

In pharmacologic doses E series prostaglandins attenuate the development of immune complex nephritis. We studied the effect of the dietary prostaglandin precursor linoleic acid on murine apoferritin-induced immune complex glomerulonephritis. High, normal, or low linoleic acid diets were fed to mice for 4 weeks prior to and during the intraperitoneal apoferritin administration. A high linoleic acid diet feeding was associated with less proteinuria, less renal histologic damage, and prevented a rise in serum creatinine. We conclude that linoleic acid has a protective effect on the development of murine apoferritin-induced immune complex nephritis.

Animals↗
PubMed1982

Hemodialysis therapy for psoriasis.

Twenty-five patients with extensive plaque psoriasis resistant to conventional treatment were evaluated for study of the effects of dialytic therapy on the skin lesions. Twenty patients were dialyzed twice a week for six hours each time with a 1.0 m2 Cuprophan membrane dialyzer. Eighteen patients responded to this therapy with regression of skin lesions. Twelve of them have not developed recurrence of lesions during a followup period extending from 6 to 27 months. A few new lesions were observed after two to six months in four patients, but the lesions were not severe enough to justify reinstitution of dialysis. Two patients developed relapse within two months after cessation of dialytic therapy. One of them was started on dialysis a second time and this was followed by remission of lesions. Five patients were taken as controls and were treated with other modes of therapy including sham dialysis, ultrafiltration without dialysis, or systemic heparinization before they were taken on the dialysis program. Whereas sham dialysis and systemic heparinization had no effect on the skin lesions which responded later to dialytic therapy, the ultrafiltration procedure was followed by partial regression of psoriasis. Dialysis appears to have a definite role in the treatment of psoriasis.

Adolescent↗
PubMed1982

Immunoreactive glandular kallikrein in rat plasma: a radioimmunoassay for its determination.

A radioimmunoassay (RIA) has been developed to measure immunoreactive glandular kallikrein in rat plasma. To prevent the binding of radioactive kallikrein to plasma inhibitors, 125I-kallikrein was inactivated with phenylmethylsulfonyl fluoride (PMSF), a procedure that maintained 125I-kallikrein immunoreactivity. Different volumes of plasma displaced 125I-PMSF-kallikrein in a parallel fashion to the kallikrein standard curve. The sensitivity of the RIA was 200 pg, and the recovery of nonradioactive active kallikrein added to plasma was 58.7%. The concentration of immunoreactive glandular kallikrein in normal rat plasma averaged 47.1 +/- 1.7 (SE) ng/ml. Bilateral nephrectomy caused a threefold increase in circulating glandular kallikrein (50 +/- 2.7 to 167 +/- 7 ng/ml; P less than 0.001). REmoval of the submandibular and sublingual glands significantly decreased its concentration from 52 +/- 2.3 to 34 +/- 1.6 ng/ml (P less than 0.001). Immunoreactive glandular kallikrein was higher in the submandibular gland vein than in arterial blood (venous: 94 +/- 10.5; arterial: 64 +/- 6.3 ng/ml; P less than 0.05) and was lower in the renal venous blood (venous: 44 +/- 2.2; arterial: 53 +/- 2.6 ng/ml; P less than 0.05). In conclusion, this study shows that the use of 125I-PMSF-kallikrein as tracer prevents the interference in the RIA caused by plasma protease inhibitors. It also indicates that the submandibular gland is an important source of the immunoreactive glandular kallikrein in rat plasma and that the kidney probably participates in its metabolism. Glandular kallikrein released by the submandibular gland into the circulation may participate in regulating local blood flow before it is inactivated by plasma inhibitors.

Animals↗