Evidence map›Paper›PMID 26323435›Full record

ArticleBMC research notes2015

Predominance of Uganda genotype of Mycobacterium tuberculosis isolated from Ugandan patients with tuberculous lymphadenitis.

Dan Wamala, Moses Okee, Edgar Kigozi, David Couvin, Nalin Rastogi, Moses Joloba, Gunilla Kallenius

Abstract read
In one paragraph

Article in BMC research notes, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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1citing papers in PubMed
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1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Dan WamalaDepartment of Pathology, Mulago Hospital and Makerere University College of Health Sciences, P. O. Box 7072, Kampala, Uganda. dwamala@gmail.com.
Moses OkeeDepartment of Medical Micobiology, Makerere University College of Health Sciences, P. O. Box 7072, Kampala, Uganda. mosesokee@gmail.com.
Edgar KigoziDepartment of Medical Micobiology, Makerere University College of Health Sciences, P. O. Box 7072, Kampala, Uganda. kigoziedgar@gmail.com.
David CouvinUnité de la Tuberculose et des Mycobactéries, Institut Pasteur de Guadeloupe, Pointe-à-Pitre, Guadeloupe, France. david.couvin@googlemail.com.
Nalin RastogiUnité de la Tuberculose et des Mycobactéries, Institut Pasteur de Guadeloupe, Pointe-à-Pitre, Guadeloupe, France. nrastogi@pastuer-guadeloupe.fr.
Moses JolobaDepartment of Medical Micobiology, Makerere University College of Health Sciences, P. O. Box 7072, Kampala, Uganda. m.joloba@gmail.com.
Gunilla KalleniusDepartment of Clinical Sciences and Education, Sodersjukhuset. Karolinska Institute, 171 77, Stockholm, Sweden. gunilla.kallenius@ki.s.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn Uganda, the emerging Uganda genotype of Mycobacterium tuberculosis is the most common cause of pulmonary tuberculosis (PTB), and accounts for up to 70% of isolates. Extrapulmonary TB (EPTB) is less studied in Uganda.

methodsMolecular characterization using deletion analysis and spoligotyping was performed on 121 M. tuberculosis isolates from lymph node fine needle biopsy aspirates of Ugandan patients with tuberculous lymphadenitis. The evolutionary relationships and worldwide distribution of the spoligotypes were analyzed.

resultsMycobacterium tuberculosis was the only cause of EPTB in this study. The T2 sublineage was the most predominant lineage and the Uganda genotype was the dominant genotype. There were 54 spoligotype patterns among the 121 study isolates. The dominant spoligotypes were shared international types (SIT) SIT420, SIT53, SIT 135, SIT 128 and SIT590 in descending order. All but SIT420 were previously reported in pulmonary TB in this setting. The phylogenetic analysis showed a long descendant branch of spoligotypes belonging to the T2-Uganda sublineage containing specifically SITs 135, 128 and 420.

conclusionIn most cases, the spoligotypes were similar to those causing PTB, but the Uganda genotype was found to be less common in EPTB than previously reported for PTB in Uganda. The phylogenetic analysis and the study of the worldwide distribution of clustered spoligotypes indicate an ongoing evolution of the Uganda genotype, with the country of Uganda at the center of this evolution.

Indexed as

GenotypeHumansMycobacterium tuberculosisPhylogenyTuberculosis, Lymph NodeUganda

Identifiers

PMID26323435
PMCPMC4556223

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