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ArticleIranian journal of microbiology2021

Molecular epidemiology and phylogenetic analysis of human T-lymphotropic virus type 1 in the

Samira Pourrezaei, Shahrzad Shadabi, Maryam Gheidishahran, Abbas Rahimiforoushani, Masoume Akhbari, Mahnaz Tavakoli, Mahshid Safavi, Mobina Madihi, Mehdi Norouzi

Abstract read
In one paragraph

Article in Iranian journal of microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed.

  1. Epidemiology and Clinical Outcomes of HTLV-1: A Comprehensive Narrative Review of Endemic and Nonendemic Regions.The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2026
    Review
  2. Phylogenetic and Mutational Analysis of theIranian journal of public health · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. Investigating the effect ofIranian journal of microbiology · 2023
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Samira PourrezaeiDepartment of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Shahrzad ShadabiDepartment of Virology, School of Medical Sciences, Kerman University of Medical Sciences, Kerman, Iran.
Maryam GheidishahranDepartment of Medical Hematology and Blood Transfusion, School of Allied Medical Science, Iran University of Medical Sciences, Tehran, Iran.
Abbas RahimiforoushaniDepartment of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Masoume AkhbariDepartment of Molecular Medicine, School of Medical Science, Karaj University of Medical Sciences, Karaj, Iran.
Mahnaz TavakoliDepartment of Medical Microbiology, School of Medical Science, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Mahshid SafaviDepartment of Medical Microbiology, School of Medical Science, Karaj University of Medical Sciences, Iran.
Mobina MadihiDepartment of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran.
Mehdi NorouziDepartment of Virology, School of Public Health and Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

objectivesHuman T-lymphotropic virus type-1 (HTLV-1) belongs to retrovirus family that causes the neurological disorder HTLV-1 adult T-cell leukemia/lymphoma (ATLL). Since 1980, seven subtypes of the virus have been recognized. HTLV-1 is prevalent and endemic in some regions, such as Africa, Japan, South America and Iran as the endemic regions of the HTLV-1 in the Middle East. To study HTLV-1 subtypes and routes of virus spread in Iran, phylogenetic and phylodynamic analyses were performed and for as much as no previous phylogenetic studies were conducted in Tehran, we do this survey. To this purpose, the Tax region of HTLV-1 was used. MATERIALS AND

methodsIn this study 100 samples were collected from blood donors in Tehran. All samples were screened for anti-HTLV-I antibodies by ELISA. Then, genomic DNA was extracted from all positive samples (10 people), and for confirmation of infection, ordinary PCR was performed for both the HBZ and LTR regions. Moreover, the Tax region was amplified and purified PCR products were sequenced and analyzed, and finally, a phylogenetic tree was constructed using Mega X software.

resultsPhylogenetic analysis confirmed that isolates from Iran, Japan, Brazil, and Africa are located within the extensive "transcontinental" subgroup A clade of HTLV-1 Cosmopolitan subtype a. The Japanese sequences are the closest to the Iranian sequences and have the most genetic similarity with them.

conclusionThrough phylogenetic and phylodynamic analyses HTLV-1 strain in Tehran were characterized in Iran. The appearance of HTLV-1 in Iran was probably happened by the ancient Silk Road which linked China to Antioch.

Indexed as

Adult T cell leukemia lymphomaHuman T-lymphotropic virus type-1IranPhylodynamicPhylogenetic

Identifiers

PMID34557280
PMCPMC8421578

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.