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Biomedical subjects

R Jlidi

Publications and source records attributed to R Jlidi.

64 records · Page 4Linked to original sources
PubMedDate not supplied

[Radiation-induced glioblastoma and myxoma after treatment for undifferentiated carcinoma of the naspharynx].

Radio-induced tumor have been known for a long time to occur after treatment of cancer during childhood. This entity is exceptional following radiotherapy of the cavum. Skull and facial osteosarcoma were described after treatment of UCNT. We report two observations of radio-induced tumors arising, respectively three and seven years after treatment of UCNT. The first one is a temporoparietal glioblastoma and the second is a rhino- and pharyngeal myxoma. The two patients are alive after treatment of the second tumor. The delay of appearance of these tumors, their situation in the field's irradiated and dose received suggests their radio-induced nature. However, the cytogenetic study is necessary to confirm the implication of radiotherapy in the genesis of these cancers.

Adult↗
PubMedDate not supplied

[Sensitivity, specificity and prognostic value of CEA in colorectal cancer: results of a Tunisian series and literature review].

In order to determine the sensitivity of CEA in the diagnosis of colo-rectal carcinoma, we studied a series of 48 patients with colo-rectal carcinoma (1992-1996). The sensitivity was at 52% with a reference value of 5 ng/ml and 68.7% for a reference value of 2.5 ng/ml. With a reference value of 5 ng/ml, the sensitivity of CEA was at 37% only for patients with colo-rectal carcinoma at Dukes B stage, 66.6% for patients at stage C and 75% for patients at stage D. The dosage of CEA was carried out with a sandwich immunoenzymatic technique in tube. There is no statistic significant correlation between the pre-operative rate of CEA and the localisation of the tumor and its histologic type; in contrast, it was significantly correlated with the ganglionnary metastasis. A significant relationship between the pre-operative rate of CEA and the Dukes stage was found for a reference value of 10 ng/ml but not for a reference value of 5 ng/ml. We calculated the specificity of the CEA for the cancers of colon and rectum which was at 76.98% with a reference value of 5 ng/ml and 86% with a reference value of 10 ng/ml.

Adult↗
PubMedDate not supplied

[Preliminary investigation of four anopheles larvae samples susceptibility to chlorpyrifos in Tunisia].

Larvae susceptibility to chlorpyrifos is studied on four Tunisian Anopheles larvas samples: Anopheles labranchiae from Rades (South of Tunis) and Menchar (region of Beja), in the North of Tunisia, A. sergentii from Meknassy and A. multicolor from Sidi Bouzid, both in the Centre of Tunisia. The test results of larvae susceplibility indicate that the LC50 and the LC95 values are less than 0.002 and 0.02 mg l-1 respectively and their 95% confidence limits overlap. We also notice that the studied samples show the same susceptibility to chlorpyrifos. The results can be used as a base data further studies on the susceptibility of Anopheles to chemical insecticides.

Animals↗
PubMedDate not supplied

[Gastrointestinal polyposis in Bourneville's tuberous sclerosis: an involvement often overlooked].

Ten patients (5 male, 5 female, mean age: 29.4 years) with tuberous sclerosis were investigated for gastrointestinal polyps. Three had adenomatous colonic polyps, one had a single duodenal hamartomatous polyp and the fifth a hyperplastic gastric polyp. This high prevalence (50%) should put the gastro-intestinal investigation as a useful test in the diagnosis of tuberous sclerosis, particularly in the incomplete varieties of disease. Conversely, tuberous sclerosis should be considered in the differential diagnosis of digestive polyposis.

Adolescent↗