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Biomedical subjects

J P Leleu

Publications and source records attributed to J P Leleu.

At least 19 recordsLinked to original sources

[HIV1 seropositivity and B and D viruses in West Africa].

This study was undertaken to investigate relationships between three widespread viruses in West Africa, i.e. HIV1 and viruses B and D, in Ivory Coast. Serologic tests for viruses B and D were carried out in a random sample of black adults of both sexes with asymptomatic HIV1 seropositivity. Coinfection by virus B or viruses B and D was a common finding. Coinfection with both viruses B and D, but not with virus B alone, was found to be significantly more frequent in these HIV1-infected adults than in a control group with acute viral hepatitis. Potential interactions between the HIV1 and viruses B and D as well as other viruses are discussed. These findings suggest that one or several cofactors acting alone or in combination play a major role in the clinical expression of HIV infection. The results of this study, together with the suggestion put forward by several investigators that B virus infection may increase the severity of AIDS, are evidence in support of the value of immunization against the B virus in the management of AIDS.

Acquired Immunodeficiency Syndrome↗

[Reflections on ankylosing spondylitis in Black Africa. Apropos of a juvenile-onset case].

From the starting point of two cases of ankylosing spondylitis, one of which began in youth, observed in Abidjan, Ivory Coast, a review of the literature concerning the major cases amongst africans is carried out. This disease is unusual in tropical Africa: about thirty published cases, of varied origin. This low incidence of ankylosing spondylitis is correlated to the rarity of the HLA B27 group and of seronegative spondylitic joint diseases in general amongst the black population of Africa. Whereas the high incidence of forms with juvenile onset in North Africa suggests some connection with undetected Reiter's disease, the infrequency of this form of onset of the disease in sub-Saharan Africa and the lack of bacteriologic evidence make it impossible to reach any such conclusions.

Adolescent↗

[Osteoarticular manifestations of thalassemia].

Thalassemia is a genetic illness which exists every where in the world. In Black Africa, intermediary thalassemia and beta-thalassemia minor are mainly observed. The osteoarthropatic signs are caused by erythroid hyperplasia and overload iron. We mention the roentgenographic skeletal survey of intermediary thalassemia and other less frequent bone abnormalities. We analyse the publications concerning osteoarticular manifestations in beta-thalassemia minor. We report a clinical and anatomical case of intermediary thalassemia with gout complications.

Adult↗

[Sinus histiocytosis with massive lymphadenopathy or the Destombes-Rosai-Dorfman disease in the Ivory Coast].

Sinusal histiocytosis with massive lymphadenopathy is a rare pathological entity since, as of 1983, only 200 cases have been published. Following the seminal description in 1965 by Destombes in Blacks, histological features of this disease were specified by Rosai and Dorfman in 1969 and 1972. We report three cases in young Ivorian subjects. The presenting finding is always chronically enlarged lymph nodes, but extranodal lesions are possible, most commonly involving the eye, salivary glands, upper respiratory tract, skin, bone, testis, and nervous system. Diagnosis can be ascertained only upon histologic examination of lymph node biopsy specimens which shows the three cardinal criteria, i.e. massive sinusal histiocytosis, lymphophagocytosis, and mature plasmocytosis. Although a few fatal cases have been reported, the disease usually runs a benign course, with exacerbations of variable duration. Great caution should therefore be taken in deciding upon management, particularly as regards corticosteroid therapy, radiotherapy or anticancer chemotherapy. Etiopathogeny of the disease is unsettled; there is general agreement as to the existence of a cellular immune dysfunction resulting in the lympho-histiocytic proliferation.

Adolescent↗

[Functional colonic pathology in the Ivory Coast].

Functional colic disorders such as the irritable bowel syndrome are very common in Ivory Coast. Etiologic, clinical, biological and roentgenological features were studied in 100 randomized cases. Findings were compared to the features encountered in Caucasians. Psychologic factors, constipation and therapeutic problems that seem to be of significance for understanding functional colic conditions in Ivoirians and other West Africans are discussed.

Adolescent↗

[Epidemiology of colorectal cancer in the Ivory Coast].

Several epidemiologic studies using data from hospital departments and from the pathological department of the Abidjan University show that colorectal cancer is infrequent in Ivory Coast (2% of all cancers). The incidence of the various factors classically incriminated in colic carcinogenesis is analyzed and discussed: precancerous conditions (adenomas, polyps, inflammatory bowel disease), histogenesis (condition of the colic mucosa) and nutritional factors. Constipation, which is very common in spite of a high intake of fibers, cannot be regarded as a predisposing factor.

Colonic Neoplasms↗

[Rheumatoid polyarthritis of adults in tropical Africa. Apropos of 50 cases in the Ivory Coast].

The joint manifestations of rheumatoid arthritis in tropical Africa are characterized by the discreteness of the involvement of the hips and perhaps of the cervical spine. The extra-articular manifestations are rare and principally of the pulmonary fibrosis type. It is difficult to conclude on the more frequent sero-negativity of the disease, as the studies are incomplete. The overall tolerance of the disease appears to be good despite the limited treatment available.

Adolescent↗

[Significance of the presence of Australia antigen in liver diseases seen in a department of internal medicine in Abidjan].

The exact responsibility of the hepatitis B virus in hepatic diseases seen in Ivory Coast is difficult to specify for several reasons, particularly technical ones. Nevertheless, we have tried to determine the prevalence of the HB virus in hospital practice and in patients hospitalized for liver diseases (viral hepatitis, cirrhosis, primary liver cancer). Comparison of the results to the prevalence of the virus in the ivorian population and statistical processing has led us to moderate the influence of HB virus in the different hepatic disorders. In primary liver cancer, the role of aflatoxine whose carcinogenic potential is now well established has not been disproved.

Adult↗

[Echocardiography and cardiac localizations of rheumatoid polyarthritis in Africans].

A lot of european authors demonstrate that echocardiography is the best examination to objective cardiac localizations in rhumatoïd arthritis (RA). Leleu, in a recent publication thinks that the rarity of systemic localizations during RA in Africans is characteristic. The authors examine the last 15 patients. They never find cardiac involvement and this seems to confirm the clinical impression about 50 previous cases.

Adult↗