Biomedical subjects
N Gitlin
Publications and source records attributed to N Gitlin.
Carbon tetrachloride-induced cirrhosis?
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Salicylate hepatotoxicity: the potential role of hypoalbuminemia.
Seventeen patients suffering from an initial attack of acute rheumatic fever were studied during treatment with phenoxymethyl penicillin and salicylates (600 mg orally every 4 or 6 hours). Elevated transaminase (SGOT) levels occurred in nine patients. The SGOT levels were directly related to serum salicylate levels (r = 0.668) and inversely to the serum albumin level (r = -0.418). SGOT response was greater in patients with a serum albumin of less than 3.5 g/dl (P < 0.001). In hypoalbuminemia, the ratio of free salicylate to bound salicylate rises and the free salicylate might be more active and thus more hepatotoxic even at relatively low total serum salicylate levels. In all patients with hypoalbuminemia of less than 3.5 g/dl, close monitoring the SGOT is advisable, especially if the level of total serum salicylate is 15 mg/dl or higher.
Patterns of hepatic injury induced by methyldopa.
Twelve patients with liver disease related to methyldopa were seen between 1967 and 1977. Illness occurred within 1--9 weeks of commencement of therapy in 9 patients, the remaining 3 patients having received the drug for 13 months, 15 months and 7 years before experiencing symptoms. Jaundice with tender hepatomegaly, usually preceded by symptoms of malaise, anorexia, nausea and vomiting, and associated with upper abdominal pain, was an invariable finding in all patients. Biochemical liver function tests indicated hepatocellular necrosis and correlated with histopathological evidence of hepatic injury, the spectrum of which ranged from fatty change and focal hepatocellular necrosis to massive hepatic necrosis. Most patients showed moderate to severe acute hepatitis or chronic active hepatitis with associated cholestasis. The drug was withdrawn on presentation to hospital in 11 patients, with rapid clinical improvement in 9. One patient died, having presented in hepatic failure, and another, who had been taking methyldopa for 7 years, showed slower clinical and biochemical resolution over a period of several months. The remaining patient in the series developed fulminant hepatitis when the drug was accidentally recommenced 1 year after a prior episode of methyldopa-induced hepatitis. In this latter patient, and in 2 others, the causal relationship between methyldopa and hepatic dysfunction was proved with the recurrence of hepatitis within 2 weeks of re-exposure to the drug.
alpha-Fetoprotein in liver disease.
Ther serum concentration of alpha-fetoprotein (AFP) was measured by radio-immunoassay in 98 patients with liver disease including hepatoma, chronic active hepatitis, alcoholic cirrhosis, and acute virus B hepatitis. Raised AFP levels, above 30 ng/ml, were found in 87% of patients with acute viral hepatitis, in 82% of patients with primary liver cell carcinoma, in 58% with chronic active hepatitis and in 14% of patients with alcoholic cirrhosis. However, levels above 1 000 ng/ml were found only in patients with hepatoma and in acute viral hepatitis.
The clinical presentation of Gilbert's disease in 26 patients.
Twenty-six patients with Gilbert's disease (congenital, non-haemolytic unconjugated hyperbilirubinaemia) were analysed regarding their clinical presentation, age at onset of symptoms, sex, frequency of symptoms, family history, race and religion. Seventy-three per cent were men, the mean age at onset of symptoms was 21 years, and frequency of symptoms ranged from 4 times a year to once every 5 years. The symptoms, which were extremely vague, included the following: recurrent asymptomatic jaundice in 74%, malaise in 66%, asthenia in 65%, and vague abdominal distension in 52% of patients. Eight per cent of patients were totally asymptomatic. There did not appear to be any particular race or religious group with a higher incidence of the disorder. No abnormal clinical features apart from mild jaundice were detected. The entirely benign nature of the syndrome is stressed, and a normal life expectancy is the rule. The avoidance of prolonged fasting is the best therapeutic measure, although enzyme induction by phenobarbitone therapy may have some place in the management of symptoms.
Raised serum transaminase levels in patients with rheumatic fever treated with salicylates.
Of 11 patients with acute rheumatic fever, 9 were treated with a total daily salicylate dosage of 3,6 g or less, 1 patient required a total daily dosage of 5,4 g and another required 9,0 g daily. Six of the 11 patients had elevated serum transaminase levels, and all were asymptomatic. The elevated transaminase levels appear to bear a direct relationship to the serum salicylate level, and a serum salicylate level of 19,2 mg/100 ml appears to be the critical point. In 5 out of the 6 patients with elevated transaminases, the serum salicylate level exceeded 19,2 mg/100 ml, while in the 5 patients with normal transaminases the serum salicylate level did not exceed 19,2 mg/100 ml. Also, in 10 of the 11 patients eosinophilia was noted, but this decreased despite continued or increased salicylate administration. A narrow margin thus appears to exist between therapeutic serum salicylate levels and hepatotoxic levels, and serial serum transaminase estimations are advocated in patients on long-term salicylate therapy.
Flapping tremor associated with administration of diphenylhydantoin sodium.
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The anti-arrhythmic effects of perhexiline maleate in patients with ischaemic heart disease.
In a preliminary study which lasted 14 weeks, an anti-anginal preparation, perhexiline maleate (Pexid), was prescribed in a dosage of 200 mg twice a day to 7 patients who were suffering from cardiac arrhythmias associated with ischaemic heart disease. There was a significant reduction in ventricular extrasystoles during the 4th and 8th weeks of the study in 6 of the patients who had multiple ventricular ectopic beats. In 4 of these patients, an effective anti-arrhythmic response was maintained until the end of the study. These findings confirm other studies regarding the efficacy of the preparation in reducing ventricular extrasystoles in patients with cardiac ischaemia.
Salicylate hepatitis. A case report.
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Perhexiline maleate in the management of patients with angina pectoris. A long-term assessment.
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Progressive systemic sclerosis (diffuse scleroderma). A follow-up report of treatment with potaba.
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The investigation and natural history of acute viral hepatitis.
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Alpha methyldopa and haemolytic anaemia.
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Proceedings: Perhexiline maleate in the treatment of angina pectoris: a double-blind trial.
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Proceedings: A long-term assessment of perhexiline maleate in the management of patients with angina pectoris.
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The incidence of Australia antigen-antibody in acute and chronic liver disease.
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