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Biomedical subjects

M Gueddiche

Publications and source records attributed to M Gueddiche.

16 recordsLinked to original sources

[Distribution of cardiovascular risk factors in a Tunisian cohort of 6901 coronary patients].

The Tunisian epidemiological data on cardiovascular disease in the hospital environment are scarce. The aim of this study was to evaluate the frequency of cardiovascular risk factors and their association in patients hospitalised for coronary disease in coronary care units at Rabta, Charles Nicolle, Habib Thameur and Military hospitals, Tunis, over the period 1994-1998. The clinical features of 6901 patients (75.7% men, 3760 myocardial infarction, 3141 unstable angina) on hospital admission were analysed. The prevalence of smoking, dyslipidemia, hypertension, diabetes and obesity was 86; 49.8; 33.9; 40.7 and 15.2% respectively in the men and 12.9; 52.4; 64.6; 53.4 and 29.8% respectively in women. With this risk factor profile Tunisia has to implement a national strategy of primary prevention and heart health promotion in addition to the efforts recently made in secondary prevention of some chronic disease such as hypertension, diabetes and smoking.

Adult↗

Linkage of a new locus for autosomal recessive axonal form of Charcot-Marie-Tooth disease to chromosome 8q21.3.

We report the clinical and genetic linkage analysis of a large Tunisian family with thirteen affected patients suffering from Charcot-Marie-Tooth disease with pyramidal involvement. The inheritance is autosomal recessive. The clinical phenotype is consistent in all patients. It is characterized by onset during the first decade, a progressive course and distal atrophy in all four limbs, associated with a mild pyramidal syndrome. Nerve biopsy in two patients showed severe axonal neuropathy. Genetic linkage excluded known loci of different genetic forms of Charcot-Marie-Tooth disease, familial spastic paraplegia and familial amyotrophic lateral sclerosis. A significant lod score was obtained with marker D8S286, confirming linkage to chromosome 8q21.3. The clinical syndrome observed in this family seems to correspond to a new genetic form of autosomal recessive Charcot-Marie-Tooth disease.

Adult↗

Anticoagulant profile of iopamidol and meglumine amidotrizoate and their lack of thrombin generation: an in vitro study.

The aim of this in vitro study was to sketch the subtle anticoagulant profile of iopamidol 300 mg l/ml (low osmolality non ionic contrast medium) and meglumine amidotrizoate 370 mg l/ml (high osmolality ionic contrast medium) in situations where variable amounts of clotting factors are observed and to check whether thrombin-generation significantly occurred in non anticoagulated blood-contrast materials mixtures. In the first experiment, mixtures of deficient plasmas with a routine plasma pool provided different ranges with variable amounts of clotting factors II, V, VIII, X, XI and XII. For each clotting factor level studied within these ranges, an activated partial thromboplastin time was determined with either contrast material loaded thromboplastin (5% v/v) or glucose loaded thromboplastin (5% v/v) used as a control. In the second experiment fibrino-peptide A (FpA) or modified antithrombin III (ATM) assays were performed in either (9:1) non anti-coagulated blood contrast materials mixtures or blood-glucose mixtures (control). Differing aPTT prolongation profiles were observed when clotting factors V, VIII, XI and XII were lowered in the plasma. However, neither iopamidol nor amidotrizoate induced an aPTT prolongation with decreasing clotting factor II. In the second experiment no significant thrombin generation was observed as both blood-contrast materials mixtures showed significantly lower FpA and ATM levels (p < 0.001) than glucose control after 5 minutes and 10 minutes incubation at room temperature. These findings provide evidence that the use of iopamidol in angiographic procedures does not increase risk of clotting or hemorrhage.

Anticoagulants↗

[Pseudotumor extramedullary hematopoiesis. Report of 3 cases and review of the literature].

We report 3 cases of extramedullary hematopoiesis with a sacrococcygeal, right obturatory hole and paravertebral dorso lumbar locations respectively in 30, 34 and 58 years old patients (two males and woman). A medullary tuberculosis was discovered in one case, a beta thalassemia in the second, and the third was classified as idiopathic. Radiologic picture often permitted to evoke the diagnosis on the aspect of a well limited multilocular tumor especially when there is a paravertebral location as in our third patient. Fine needle punction cytologic examination can permit the diagnosis and avoid surgery, except if complications occur.

Adult↗

[A clinical trial of a titrated Olea extract in the treatment of essential arterial hypertension].

A clinical assay of Olea europaea L. aqueous extract was carried on two groups of patients suffering with essential hypertension. 12 patients consulting for the first time, 18 patients with antihypertensive treatment. Treatment based on Olea europeae L. leaf aqueous extract was given (400 ng x 4/24 h) during 3 months, after 15 days treatment based on placebo. We note for all patients a statistically significant decrease of blood pressure (p < 0.001), we didn't find any modification of biological parameters excepted a significant little decrease of glycemia and calcemia p < 0.01 and p < 0.01 respectively. We didn't find any side effect in the two groups.

Adult↗