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HIV-1 molecular transmission network among sexually transmitted populations in Liaoning Province, China

INTRODUCTION: In recent years, with the development of molecular epidemiology, molecular transmission networks based on evolutionary theory and sequence analysis have been widely used in research on human immunodeficiency virus (HIV)-1 transmission dynamics and precise intervention for high-risk pop...

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Autores principales: Ma, Ning, Chen, Xing-hua, Zhao, Yan, Kang, Xu, Pan, Shan, Yao, Wen-qing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Lippincott Williams & Wilkins 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8284760/
https://www.ncbi.nlm.nih.gov/pubmed/34260561
http://dx.doi.org/10.1097/MD.0000000000026640
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author Ma, Ning
Chen, Xing-hua
Zhao, Yan
Kang, Xu
Pan, Shan
Yao, Wen-qing
author_facet Ma, Ning
Chen, Xing-hua
Zhao, Yan
Kang, Xu
Pan, Shan
Yao, Wen-qing
author_sort Ma, Ning
collection PubMed
description INTRODUCTION: In recent years, with the development of molecular epidemiology, molecular transmission networks based on evolutionary theory and sequence analysis have been widely used in research on human immunodeficiency virus (HIV)-1 transmission dynamics and precise intervention for high-risk populations. The HIV-1 molecular transmission network is a new method to study the population's access to the network, the characteristics of clustering, and the characteristics of interconnection in the network. Here, we analyzed the characteristics of the HIV-1 molecular transmission network of sexually transmitted people in Liaoning Province. METHODS: A study of HIV-infected persons who were sexually transmitted in Liaoning Province from 2003 to 2019. HIV-1 RNA was extracted, amplified and sequenced, and a phylogenetic tree was constructed to determine the subtype using the well matched pol gene region sequence. The gene distance between sequences was calculated, the threshold was determined, and the molecular transmission network was constructed. RESULTS: 109 samples of pol gene region were obtained. The main subtype of HIV-1 was CRF01_AE, followed by B, CRF07_BC, etc. 12.8% of them were resistant to HIV. At the threshold of 0.55 gene distance, 60.6% of them entered the HIV-1 molecular transmission network. Workers, sample source voluntary counseling and testing, other testing, subtype B and drug resistance are the factors influencing the access to HIV-1 molecular transmission network. The subtype of CRF01_AE formed 6 clusters in the molecular transmission network. In the network, the difference of connection degree between different subtypes was statistically significant. DISCUSSION: The three subtypes CRF01_AE, CRF07_BC and B that enter the molecular transmission network do not have interconnections, and they form clusters with each other. It shows that the risk of transmission among the three subtypes is less than the risk of transmission within each subtype. The factors affecting HIV-1 entry into the molecular transmission network were occupation, sample source, genotype and drug resistance. The L33F mutation at the HIV-1 resistance mutation site constitutes the interconnection in the largest transmission cluster in the network. The epidemiological characteristics of HIV-infected persons in each molecular transmission cluster show that 97% of the study subjects come from the same area and have a certain spatial aggregation. CONCLUSION: Constructing a molecular transmission network and conducting long-term monitoring, while taking targeted measures to block the spread of HIV can achieve precise prevention and control.
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spelling pubmed-82847602021-07-19 HIV-1 molecular transmission network among sexually transmitted populations in Liaoning Province, China Ma, Ning Chen, Xing-hua Zhao, Yan Kang, Xu Pan, Shan Yao, Wen-qing Medicine (Baltimore) 4850 INTRODUCTION: In recent years, with the development of molecular epidemiology, molecular transmission networks based on evolutionary theory and sequence analysis have been widely used in research on human immunodeficiency virus (HIV)-1 transmission dynamics and precise intervention for high-risk populations. The HIV-1 molecular transmission network is a new method to study the population's access to the network, the characteristics of clustering, and the characteristics of interconnection in the network. Here, we analyzed the characteristics of the HIV-1 molecular transmission network of sexually transmitted people in Liaoning Province. METHODS: A study of HIV-infected persons who were sexually transmitted in Liaoning Province from 2003 to 2019. HIV-1 RNA was extracted, amplified and sequenced, and a phylogenetic tree was constructed to determine the subtype using the well matched pol gene region sequence. The gene distance between sequences was calculated, the threshold was determined, and the molecular transmission network was constructed. RESULTS: 109 samples of pol gene region were obtained. The main subtype of HIV-1 was CRF01_AE, followed by B, CRF07_BC, etc. 12.8% of them were resistant to HIV. At the threshold of 0.55 gene distance, 60.6% of them entered the HIV-1 molecular transmission network. Workers, sample source voluntary counseling and testing, other testing, subtype B and drug resistance are the factors influencing the access to HIV-1 molecular transmission network. The subtype of CRF01_AE formed 6 clusters in the molecular transmission network. In the network, the difference of connection degree between different subtypes was statistically significant. DISCUSSION: The three subtypes CRF01_AE, CRF07_BC and B that enter the molecular transmission network do not have interconnections, and they form clusters with each other. It shows that the risk of transmission among the three subtypes is less than the risk of transmission within each subtype. The factors affecting HIV-1 entry into the molecular transmission network were occupation, sample source, genotype and drug resistance. The L33F mutation at the HIV-1 resistance mutation site constitutes the interconnection in the largest transmission cluster in the network. The epidemiological characteristics of HIV-infected persons in each molecular transmission cluster show that 97% of the study subjects come from the same area and have a certain spatial aggregation. CONCLUSION: Constructing a molecular transmission network and conducting long-term monitoring, while taking targeted measures to block the spread of HIV can achieve precise prevention and control. Lippincott Williams & Wilkins 2021-07-16 /pmc/articles/PMC8284760/ /pubmed/34260561 http://dx.doi.org/10.1097/MD.0000000000026640 Text en Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. http://creativecommons.org/licenses/by/4.0 (https://creativecommons.org/licenses/by/4.0/)
spellingShingle 4850
Ma, Ning
Chen, Xing-hua
Zhao, Yan
Kang, Xu
Pan, Shan
Yao, Wen-qing
HIV-1 molecular transmission network among sexually transmitted populations in Liaoning Province, China
title HIV-1 molecular transmission network among sexually transmitted populations in Liaoning Province, China
title_full HIV-1 molecular transmission network among sexually transmitted populations in Liaoning Province, China
title_fullStr HIV-1 molecular transmission network among sexually transmitted populations in Liaoning Province, China
title_full_unstemmed HIV-1 molecular transmission network among sexually transmitted populations in Liaoning Province, China
title_short HIV-1 molecular transmission network among sexually transmitted populations in Liaoning Province, China
title_sort hiv-1 molecular transmission network among sexually transmitted populations in liaoning province, china
topic 4850
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8284760/
https://www.ncbi.nlm.nih.gov/pubmed/34260561
http://dx.doi.org/10.1097/MD.0000000000026640
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