amerindian tribes
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2013 ◽  
Vol 36 (2) ◽  
pp. 158-166 ◽  
Author(s):  
Juan J. Yunis ◽  
Edmond J. Yunis ◽  
Emilio Yunis

2013 ◽  
Vol 36 (2) ◽  
pp. 149-157 ◽  
Author(s):  
Solangy Usme-Romero ◽  
Milena Alonso ◽  
Helena Hernandez-Cuervo ◽  
Emilio J. Yunis ◽  
Juan J. Yunis

Retrovirology ◽  
2011 ◽  
Vol 8 (S1) ◽  
Author(s):  
Philippe Mauclère ◽  
Laurent Meertens ◽  
Philippe Afonso ◽  
Sabine Plancoulaine ◽  
Claudia Filippone ◽  
...  

2011 ◽  
Vol 203 (9) ◽  
pp. 1316-1323 ◽  
Author(s):  
Philippe Mauclère ◽  
Philippe Vicente Afonso ◽  
Laurent Meertens ◽  
Sabine Plancoulaine ◽  
Sara Calattini ◽  
...  
Keyword(s):  

2005 ◽  
Vol 86 (9) ◽  
pp. 2433-2437 ◽  
Author(s):  
A. M. G. Cunha ◽  
A. Caterino-de-Araujo ◽  
S. C. B. Costa ◽  
E. Santos-Fortuna ◽  
N. C. A. Boa-Sorte ◽  
...  

Human herpesvirus 8 (HHV-8) seroprevalences were determined in two isolated Amazon Amerindian tribes, according to age, gender and familial aggregation. Plasma and serum samples obtained from 982 Amazon Amerindians (664 Tiriyó and 318 Waiampi) were tested for antibodies against lytic and latent HHV-8 antigens by using ‘in-house’ immunofluorescence assays. Overall, HHV-8 seroprevalence was 56·8 % (57·4 % in the Tiriyó tribe and 55·7 % in the Waiampi tribe). Seroprevalence was independent of gender and increased linearly with age: it was 35·0 % among children aged 2–9 years, 51·4 % in adolescents (10–19 years), 72·9 % in adults and 82·3 % in adults aged >50 years. Interestingly, 44·4 % of children under 2 years of age were HHV-8-seropositive. No significant differences in seroprevalence between tribes and age groups were detected. It is concluded that HHV-8 is hyperendemic in Brazilian Amazon Amerindians, with vertical and horizontal transmission during childhood, familial transmission and sexual contact in adulthood contributing to this high prevalence in these isolated populations.


2005 ◽  
Vol 28 (1) ◽  
pp. 36-39 ◽  
Author(s):  
Ney Pereira Carneiro dos Santos ◽  
Ândrea KC Ribeiro-dos-Santos ◽  
Sidney EB Santos

2005 ◽  
Vol 93 (05) ◽  
pp. 1005-1007 ◽  
Author(s):  
Ismael Nuño-Arana ◽  
Luis Páez-Riberos ◽  
Lucila Sando-val-Ramírez ◽  
José Muñoz-Valle ◽  
Doris Pinto-Escalante ◽  
...  

2005 ◽  
Vol 21 (1) ◽  
pp. 15-19 ◽  
Author(s):  
M. T. Fernández-Mestre ◽  
Castro Yehirobi ◽  
S. Montagnani ◽  
O. Balbas ◽  
Z. Layrisse

The genetic variation at the Apolipoprotein E locus (APOE) is an important determinant of plasma lipids and has been implicated in various human pathological conditions. The objective of the present study was to estimate the distribution of APOE alleles in five Venezuelan communities: two Amerindian tribes (Bari and Yucpa), one Negroid population from Curiepe, one Caucasoid population from Colonia Tovar and the mestizo urban population living in Caracas. The APOE*3 allele was the most common allele in all populations studied. However, a significant increase in the APOE*2 allele frequency in the Mestizo (18.96%) and Negroid (16.25%) populations was found. Similar to results reported in other Native American populations we have found that the APOE*2 allele is completely absent in the Bari and Yucpa Amerindians. Frequencies found in the Colonia Tovar population are in agreement with those reported in the population of Germany, indicating a high degree of relatedness. The results support the notion that the distribution of the APOE alleles shows ethnic variability.


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