scholarly journals Genetic diversity and phylogeographic analysis of human herpesvirus type 8 (HHV-8) in two distant regions of Argentina: Association with the genetic ancestry of the population

2020 ◽  
Vol 85 ◽  
pp. 104523
Author(s):  
María Laura Hulaniuk ◽  
Laura Mojsiejczuk ◽  
Federico Jauk ◽  
Carlos Remondegui ◽  
Lilia Mammana ◽  
...  
2020 ◽  
Author(s):  
MARIA LAURA HULANIUK ◽  
LAURA MOJSIEJCZUK ◽  
FEDERICO JAUK ◽  
CARLOS REMONDEGUI ◽  
LILIA MAMMANA ◽  
...  

Background: The genetic diversity of persistent infectious agents, such as HHV-8, correlates closely with the migration of modern humans out of East Africa which makes them useful to trace human migrations. However, there is scarce data about the evolutionary history of HHV-8 particularly in multiethnic Latin American populations. Objectives: The aim of this study was to characterize the genetic diversity and the phylogeography of HHV-8 in two distant geographic regions of Argentina and to establish potential associations with the genetic ancestry of the population. Study design: A total of 605 HIV-1 infected subjects, Kaposi Sarcoma (KS) patients and blood donors were recruited in the metropolitan (MET) and north-western regions of Argentina (NWA). After HHV-8 DNA detection, ORF-26 and ORF-K1 were analyzed for subtype assignment. Uniparental and biparental ancestry markers were evaluated in samples in which subtypes could be assigned. Phylogeographic analysis was performed in the ORF-K1 sequences from this study combined with 388 GenBank sequences. Results: HHV-8 was detected in 24.8% of samples. ORF-K1 phylogenetic analyses showed that subtypes A (A1-A5), B1, C (C1-C3) and F were present in 46.9%, 6.25%, 43.75% and 3.1% of cases, respectively. Analyses of ORF-26 fragment revealed that 81.95% of strains were subtypes A/C followed by J, B2, R, and K. Among KS patients, subtype A/C was more commonly detected in MET whereas subtype J was the most frequent in NWA. Subtypes A/C was significantly associated with Native American maternal haplogroups (p=0.004), whereas subtype J was related to non-Native American haplogroups (p<0.0001). Sub-Saharan Africa, Europe and Latin America were the most probable locations from where HHV-8 was introduced to Argentina. Conclusions: These results give evidence of the geographic circulation of HHV-8 in Argentina, provide new insights about its relationship with ancient and modern human migrations and identify the possible origins of this virus in Argentina.


2016 ◽  
Vol 89 (3) ◽  
pp. 518-527 ◽  
Author(s):  
María Laura Hulaniuk ◽  
Oscar Torres ◽  
Sonia Bartoli ◽  
Lisandro Fortuny ◽  
Leandro Burgos Pratx ◽  
...  

2013 ◽  
Vol 88 (2) ◽  
pp. 243-246 ◽  
Author(s):  
Patricia Fonseca Pereira ◽  
Tullia Cuzzi ◽  
Maria Clara Gutierrez Galhardo

Kaposi's sarcoma is the most common neoplasia diagnosed in AIDS patients and the expression of the human herpesvirus-8 (HHV-8) latent nuclear antigen-1 has been useful for its histological diagnosis. The aim of this study is to confirm that immunohistochemistry is a valuable tool for differentiating KS from its simulators in skin biopsies of HIV patients. Immunohistochemical and histological analyses were performed in 49 Kaposi's sarcoma skin biopsies and 60 of its histological simulators. Positivity was present in the 49 Kaposi's sarcoma skin biopsies and no staining was observed in the 60 simulators analyzed, resulting in sensibility and specificity of 100%. HHV-8 immunohistochemical detection is an effective tool for diagnosing Kaposi's sarcoma, especially in early lesions in which neoplastic features are not evident. It also contributes to its histological differential diagnosis.


2019 ◽  
Vol 16 (1S) ◽  
pp. 40-44
Author(s):  
V. V. Neroev ◽  
L. A. Katargina ◽  
L. A. Kovaleva ◽  
G. I. Krichevskaya ◽  
N. V. Balatskaya

Purpose: to study the role of human herpesviruses (HHV) in the pathogenesis of prolonged bacterial corneal ulcers. Patients and methods. 117 patients with bacterial corneal ulcer were examined. Two groups were identified: a favorable course-with duration of bacterial corneal ulcer epithelialization for 17 days (62 people) and a prolonged course with a persistent ulcer more than 17 days (55 people). Blood samples (n = 117) and scrapes from corneal ulcer (n = 117) were investigated in polymerase chain reaction (PCR) for the presence of deoxyribonucleic acid (DNA) of Herpes simplex virus (HSV1, 2), Epstein-Barr virus (EBV), Human herpesvirus type 6, 7 (HHV-6, HSV-7). Results. The HSV1, 2 and EBV genomes were detected in the cornea significantly more often in BCU of prolonged course compared with a favorable course (HSV1, 2 p = 0.012; EBV p = 0.012), and HHV-6 was detected not only in the cornea (p = 0.000), but also and in blood (p = 0.007). In patients with HHV DNA in corneal scarps and/or blood, after resorption of purulent infiltrate, corneal epithelialization was absent, and the use of antiherpetic drugs allowed to reduce the completion time of BCU epithelialization. Conclusion. The role of HHV-6, EBV, HSV 1, 2 in the pathogenesis of bacterial corneal ulcer of protracted course was revealed. The expediency of examination of patients with bacterial corneal ulcer on HHV is shown, a method of treatment is proposed, including antiherpetic therapy, which makes it possible to prevent the development of a protracted course.


1994 ◽  
Vol 18 (Supplement_1) ◽  
pp. S113-S113
Author(s):  
D. V. Ablashi ◽  
Z. Berneman ◽  
C. Lawyer ◽  
A. Komaroff

2008 ◽  
Vol 43 (4) ◽  
pp. 361-366 ◽  
Author(s):  
P.J. de Pagter ◽  
Rob Schuurman ◽  
Ellen Meijer ◽  
Debbie van Baarle ◽  
E.A.M. Sanders ◽  
...  

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