HTLV-I associated myelopathy: an endemic disease of Canadian aboriginals of the Northwest Pacific coast?
نویسندگان
چکیده
Human T-cell lymphotropic virus type 1 (HTLV-I) is responsible for HTLV-I associated myelopathy or tropical spastic paraparesis (HAM/TSP) and for adult T-cell leukemia/lymphoma (ATLL). Both diseases have been well described in individuals living in Japan, West Indies, Seychelles Islands and Columbia where infection with HTLV-I is considered endemic and in persons whose descendants originated from these endemic areas. We report here 4 cases of HAM/TSP in 4 natives from 4 different tribal groups from British Columbia (B.C.). These are the first case reports of HTLV-I linked diseases found among North American Aboriginals. Possible routes of infection for HTLV-I infection included sexual transmission, breast feeding, blood transfusions and IV drug use. The seroprevalence of HTLV-I in North American Native population is unknown and we suggest that it is endemic in this ethnic group.
منابع مشابه
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Human T lymphotropic virus type I (HTLV-I) is a retrovirus which is associated with adult T cells leukaemia (ATL) and HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP) in a minority of HTLV-I-infected individuals. It is not clear why a minority of HTLV-I-infected individuals develop HAM/TSP and majority remains lifelong carriers. It seems that the interaction between the v...
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Human T-cell lymphotropic virus type 1 (HTLV-1) is associated with adult T-cell leukemia/lymphoma (ATL) and HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Only a limited percentage of infected individuals develop disease in response to the virus while the majority remain asymptomatic and HAM/TSP is the most common clinical manifestation of the virus. HAM/TSP is an inflamma...
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Human T-cell lymphotropic virus (HTLV) types 1 and 2 belong to the Oncorna group of retroviridae, a large family of viruses, grouped initially by pathogenic features, but later revised on the basis of genome structure and nucleotide sequence. HTLV-I was the first discovered human retrovirus to be associated with a malignancy in 1980. The malignancy, first described by Uchiyama and co-worker...
متن کاملHTLV-I-associated myelopathy (HAM) in Tokushima Prefecture--geographical and clinical studies in an area between endemic and non-endemic areas of HTLV-I infection.
The geographic distribution and clinical features of patients with HTLV-I-associated myelopathy (HAM) in Tokushima prefecture were investigated. Nine patients were found prior to December 1990. The minimal prevalence was estimated as 1.1 per 100,000 in the general population, and 1 per 1,309 in HTLV-I-seropositive persons. Seven patients were found in the southern district facing the Pacific Oc...
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ورودعنوان ژورنال:
- The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques
دوره 20 4 شماره
صفحات -
تاریخ انتشار 1993