[A case of tropical spastic paraparesis associated with HTLV1 in the Niger Republic].
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The prevalence of reactive serological tests for syphilis (STS) was investigated in 183 Jamaican patients with tropical spastic paraparesis (TSP) and 200 age and sex matched controls. A significantly higher prevalence of reactive STS was found in TSP patients (34.9%) compared with controls (14.0%, P < 0.001). The biological false positive (BFP) rate was also significantly higher in TSP patients (P < 0.01) as well as controls (P < 0.001) over 40 years of age. However, these findings do not imply a pathogenetic role for treponemal disease in TSP. The high prevalence of reactive STS in Jamaican TSP patients may be multifactorial, and include biological false positives (BFP), previous childhood yaws and concurrent syphilis.
Tropical spastic paraparesis (TSP) is a chronic and slowly progressive endemic myelopathy occurring in geographical isolates in the Caribbean, South India, South Africa, the Seychelles, and Colombia. A detailed clinical and laboratory study was performed on 50 TSP patients from the island of Tumaco (Colombia), in a tropical rain forest area. Most patients were middle-aged blacks, 29 (58%) men and 21 women. In every case, neurological examination confirmed the presence of pyramidal signs in the lower limbs, plus, in 58%, moderate decrease in vibratory perception distally in the feet, bilaterally and symmetrically. Absent ankle jerks were found in 28%. Slow onset and chronic progression were documented in most patients. Positive treponemal serology, from yaws infection in childhood, was found in the serum in 92%, and in 19% also in the cerebrospinal fluid (CSF). No pleocytosis was documented on 27 CSF samples, but increased protein content occurred in 86%, with elevation of gamma-globulins in 78%. Treatment of 20 patients with high doses of penicillin produced no change in the clinical picture. TSP emerges from this review of the literature as a remarkably homogeneous clinical entity worldwide. A retrovirus-human T-lymphotropic virus type 1 (HTLV-1)--has been recently implicated as a possible etiology of the syndrome.
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In order to evaluate the prevalence of HTLV-I infection and its association with tropical spastic paraparesis (TSP) in Bahia, a Northeastern State of Brazil, CSF and sera from TSP patients and CSF and/or sera from some selected groups of individuals were studied. The results seem to indicate a higher prevalence of HTLV-I infection in women than men with TSP and among individuals of HIV risk groups. Some alterations of routine analysis of CSF can suggest HTLV-I infection in TSP patients.
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