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The frequency of diabetes mellitus was studied in all 150 registered patients suffering from porphyria cutanea tarda in Bulgaria. To 63 of the patients an oral glucose tolerance test was performed according to the criteria of the Diabetic Committee of the WHO (1979). Diabetes mellitus was found in 9
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A study on carbohydrate metabolism (glycaemia and insulinaemia curves during the oral and the intravenous glucose tolerance tests) in 20 porphyria cutanea tarda patients revealed diabetes mellitus in 2 and impaired glucose tolerance in 1 patient, but the carbohydrate tolerance did not differ greatly
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Porphyria cutanea tarda (PCT) has a known increased incidence of diabetes mellitus and hepatic involvement. We investigated glucose tolerance and glucoregulatory hormone alterations in seven patients with PCT and correlated these results with hepatic histology by percutaneous liver biopsy. Abnormal
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The porphyrias are a group of uncommon metabolic diseases caused by enzyme deficiencies within heme biosynthesis that lead to neurotoxic or phototoxic heme precursor accumulation. There are four acute porphyrias characterized by neuropsychiatric symptoms: acute intermittent porphyria, variegate
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It has been reported that patients with porphyria cutanea tarda (PCT) develop carbohydrate (CHO) intolerance and manifest diabetes melitus (DM) more frequently than the normal population. In order to verify whether this is due to insulin resistance we studied 5 patients with PCT and 5 normal
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Hexachlobenzene (HCB), one of the most persistent environmental pollutants, induces porphyria cutanea tarda (PCT). The aim of this work was to analyze the effect of HCB on some aspects of glucose metabolism, particularly those related to its neosynthesis in vivo. For this purpose, a time-course
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In 80 industrial workers producing herbicides (2,4,5-trichlorphenoxyaceticacidsodium and sodiumpentachlorphenolate) in Czechoslovakia the following signs of intoxication caused by 2,3,6,7-tetrachlordibenzodioxin were found: Dermatological: Chloracne and Porphyria cutanea tarda. Internal: Disorders
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Hepatitis C virus antibodies were studied in sera coming from 39 patients with porphyria (cutanea tarda in 17, variegate in 8, intermittent acute in 4, coproporphyria in 2 and protoporphyria in 8). Nine of 17 patients with porphyria cutanea tarda had positive antibodies, but none of the patients
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Acute intermittent porphyria, variegate porphyria, and hereditary coproporphyria are hepatic porphyrias due to enzyme defects that are inherited as autosomal dominants. Porphyria cutanea tarda is considered an acquired disorder. Similar drugs or circumstances are precipitants of acute attacks in all
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Mellituria was studied in 83 subjects: 25 normal adults and children and 58 patients with several metabolic diseases. In comparison to the controls, no significant differences were found in 9 patients with cystinuria and in 2 patients with Apert's syndrome. The large excretion of glucose was the
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Hexachlorobenzene (HCB) is a fungicide of well-known porphyrinogenic ability, which induces an experimental porphyria that resembles human porphyria cutanea tarda (PCT) in several animal species. It has been demonstrated that high glucose ingestion prevents porphyria development, and
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The porphyrias are a diverse group of metabolic diseases. Major manifestations are episodic neurovisceral attacks of pain or other neurologic features, and/or dermatologic abnormalities. It is essential that a clear diagnosis be established prior to planning management. In our experience, most
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