Biomedical subjects

N Dupin

Publications and source records attributed to N Dupin.

At least 73 records · Page 4Linked to original sources

PubMed1996

[Human herpesvirus 8].

Human herpesvirus 8 (HHV-8, KSHV) was discovered in 1994 by means of a molecular biology approach which permitted to characterize fragments of its genomic sequence. The partial analysis of nucleotide sequence showed that HHV-8 was closely related to herpesvirus saimiri and Epstein-Barr virus, two members of Gammaherpesvirinae sub-family. So far, the virus has been neither isolated nor observed using electron microscopy. It is only detected by means of polymerase chain reaction (PCR) and molecular hybridization. HHV-8 detection in human tissues is strongly associated with three diseases: Kaposi's sarcoma, body-cavity-based lymphomas and Castleman's disease. This association raises the question of the causative role of HHV-8 in the occurrence of these three disease.

Castleman Disease↗

PubMed1995

Herpes-like DNA sequences, AIDS-related tumors, and Castleman's disease.

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Aged↗

PubMed1995

Herpesvirus-like DNA sequences in patients with Mediterranean Kaposi's sarcoma.

DNA sequences closely related to herpesvirus-like sequences have been found in AIDS-associated Kaposi's sarcoma. Using PCR, we found herpesvirus-like DNA sequences in Kaposi's lesions and normal adjacent skin in five patients with Mediterranean Kaposi's sarcoma. We did not find these sequences in tissues from patients without Kaposi's sarcoma. Semi-quantitative PCR revealed many more herpesvirus-like sequences in Kaposi's lesions than in unaffected skin. Our results reinforce the hypothesis that an infectious agent closely related to gamma-herpesvirus is implicated in the pathogenesis of Mediterranean and AIDS-associated Kaposi's sarcoma.

Acquired Immunodeficiency Syndrome↗

PubMed1995

Essential mixed cryoglobulinemia. A comparative study of dermatologic manifestations in patients infected or noninfected with hepatitis C virus.

BACKGROUND AND DESIGN: An association between essential mixed cryoglobulinemia and hepatitis C virus (HCV) infection has been reported. Dermatologic manifestations are a classic presenting complaint in essential mixed cryoglobulinemia. The aim of this study was to compare the frequency and the nature of dermatologic manifestations in essential mixed cryoglobulinemia according to the presence of anti-HCV antibodies. Sixty-two consecutive patients with essential mixed cryoglobulinemia were tested for anti-HCV antibodies. Dermatologic manifestations were systematically assessed. RESULTS: Anti-HCV antibodies were detected in 35 patients. Palpable purpura corresponding histologically to leukocytoclastic vasculitis was the more frequently observed dermatologic manifestation and occurred mainly in HCV-antibody-positive patients. The patients with purpura had significantly higher serum cryoglobulin levels than patients without purpura. CONCLUSIONS: The frequency of palpable purpura is higher in HCV-antibody-positive patients and is related to the serum cryoglobulin levels.

Cryoglobulinemia↗

PubMed1995

[Kaposi disease].

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AIDS-Related Opportunistic Infections↗

PubMed1994

[When should hepatitis C serology be required in dermatology?].

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Cryoglobulinemia↗

PubMed1994

[Pachydermodactyly].

INTRODUCTION: Histologically pachydermodactyly results from fibromatosis. Characteristically, the clinical picture occurs almost exclusively in young men. The lesion is localized on the laterodorsal aspect of the proximal phalanges of both hands. CASE REPORT: We observed a 19-year-old man with deformity of the laterodorsal aspect of the first phalanx of the fingers on both hands which had been present for several years. The clinical course and histology of the deformity as well as the lack of any bone lesions led to the diagnosis of pachydermodactyly. COMMENTS: Pachydermodactyl is a rare disease. Our case was comparable to those reported in the literature. A mechanical cause is accepted by most authors.

Adult↗

PubMed1993