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Biomedical subjects

S Jain

Publications and source records attributed to S Jain.

At least 667 records · Page 37Linked to original sources

The effect of small and moderate doses of d-amphetamine on hunger, mood, and arousal in man.

In rats, low doses of d-amphetamine (d-amp) increase rather than decrease food intake. A double-blind study was carried out in nine healthy female subjects to compare the effects of a low (1 mg) and a moderate (10 mg) dose of d-amp and placebo on hunger, mood and arousal. Each subject participated in three experimental sessions, 1 week apart, when they received either 1 mg d-amp, 10 mg d-amp or placebo, according to a random double-blind design. Visual analogue rating scales for hunger, mood and arousal were completed prior to drug administration and at 30-min intervals for 4 h. A questionnaire relating to sleep pattern and side effects was completed the morning after each experimental session. d-Amp (10 mg) produced a significant reduction in hunger ratings as compared with placebo at 2 h and 2.5 h after administration, while 1 mg d-amp had no significant effect on hunger. Mood and arousal were only slightly elevated by 10 mg d-amp, and not at all by 1 mg.

Adult↗

Late results of the Royal Free Hospital prospective controlled trial of prednisolone therapy in hepatitis B surface antigen negative chronic active hepatitis.

A long-term follow-up of at least 10 years or until death of 44 patients taking part in a controlled prospective trial of prednisolone therapy in hepatitis B antigen negative chronic active hepatitis (lupoid hepatitis) has been performed at the Royal Free Hospital, London. Patients presenting between 1963 and 1967 were randomly allocated into control and treatment groups. Ten year life table survival curves showed a significantly improved survival in the treatment group where 63% of patients were alive at 10 years compared with only 27% in the control group (log rank test, P = 0.03). The median survival in the treatment group was 12.2 years compared with 3.3 years in the control group. The mean duration of treatment was 4.5 years. Age, presence of antinuclear factor, cirrhosis, or level of serum transaminases at presentation did not appear to affect survival. Male patients if untreated had a poorer prognosis than females (P = 0.02). The natural history of chronic active hepatitis appeared from clinical, biochemical, and histological findings to be from an active hepatitis or cirrhosis to inactive macronodular cirrhosis. Prednisolone therapy significantly improved survival by reducing mortality in the early active phase of the disease.

Adolescent↗

Levamisole therapy for HBsAg-positive chronic liver disease.

Eight subjects with HBsAg-positive chronic liver disease received levamisole therapy continuously for 6 to 8 weeks. Depressed T-lymphocyte concentrations, found in all patients before therapy, transiently returned towards normal. All of the three patients who had normal delayed hypersensitivity responses before treatment showed an acute hepatitic reaction manifested by elevation of serum aspartate transaminase (AsT) and HBsAg levels, with transient cell-mediated immunity to HBsAg. This was interpreted as indicating increased lysis of infected hepatocytes. All of the five anergic patients showed no change in AsT or HBsAg levels. The clinical features and hepatic histology were unchanged. In patients with the capacity to mount normal delayed hypersensitivity responses, levamisole enhanced the cell-mediated response to HBsAg, and there was increased lysis of infected cells. Nevertheless, this treatment failed to eradicate the virus, as all patients remained HBsAg-positive.

Adult↗

Reduction of immune complexes and immunoglobulins induced by D-penicillamine in primary biliary cirrhosis.

Penicillamine has an effect on immune complexes and immunoglobulins both in vivo and in vitro. We therefore studied the effect of penicillamine on immune complexes and immunoglobulins in primary biliary cirrhosis. Twenty-eight patients were randomly allocated into a treatment group receiving 600 to 900 mg of penicillamine, or a control group, and followed for a maximum of 24 months. After 12 and 24 months, serum immune complexes had fallen significantly in treated patients as compared to controls (P less than 0.05, P less than 0.01). Treatment reduced IgA, IgG and IgM concentrations, with IgM being significantly different from controls at six, 12 and 24 months (P less than 0.01). Over 24 months, serum aspartate transaminase levels fell in treated patients but rose in controls (P less than 0.01). Bilirubin concentrations increased at a slower rate in treated patients. Penicillamine may favorably influence the course of primary biliary cirrhosis by its immunologic action in addition to its copper-chelating action.

Antigen-Antibody Complex↗

Acute renal insufficiency occurring during intravenous desferrioxamine therapy.

A patient of 14 years suffering from secondary haemosiderosis and thalassaemia major was treated with i.v. desferrioxamine in doses up to 3 g/d. Urine iron loss ranged from 46-158 mg/d. Despite improvement in cardiac and hepatic status the patient developed acute renal insufficiency of the pre renal type. The possible role of desferrioxamine in this complication is discussed. Desferrioxamine given s.c. or i.v. effects a marked urinary iron loss but its use may not be without significant complications.

Acute Kidney Injury↗