ArticleScientific reports2019
Genetic polymorphisms associated with treatment failure and mortality in pediatric Pneumocystosis.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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.
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.
Who cites it
13 citing papers in PubMed, 17 citations in OpenAlex.
- Past Achievements, Present Gaps, and Future Priorities in Pneumocystis jirovecii Research: A Global Bibliometric Analysis.Pathogens (Basel, Switzerland) · 2026Review
- Predicting antifolate resistance in the unculturable fungal pathogen Pneumocystis jirovecii.PLoS genetics · 2026Article
- Strain-Dependent Protective Innate Immunity AgainstJournal of fungi (Basel, Switzerland) · 2026Article
- Molecular Study ofJournal of fungi (Basel, Switzerland) · 2024Article
- Molecular Analysis of Dihydropteroate Synthase Gene Mutations inInternational journal of molecular sciences · 2023Article
- Apparent Absence of Selective Pressure on Pneumocystis jirovecii Organisms in Patients with Prior Methotrexate Exposure.Antimicrobial agents and chemotherapy · 2022Article
- Genetic Polymorphisms ofPolish journal of microbiology · 2022Article
- Update on Dihydropteroate Synthase (DHPS) Mutations inJournal of fungi (Basel, Switzerland) · 2021Review
- Drug-Resistant Fungi: An Emerging Challenge Threatening Our Limited Antifungal Armamentarium.Antibiotics (Basel, Switzerland) · 2020Review
- Diagnosing Pneumocystis jirovecii pneumonia: A review of current methods and novel approaches.Medical mycology · 2020Review
- Consensus Multilocus Sequence Typing Scheme forJournal of fungi (Basel, Switzerland) · 2020Review
- The Contribution of Host Cells toPathogens (Basel, Switzerland) · 2019Review
- Pneumocystis pneumonia: still a serious disease in children.Developmental period medicine · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Data on the genetic diversity of Pneumocystis jirovecii causing Pneumocystis pneumonia (PCP) among children are still limited, and there are no available data from the Indian subcontinent, particularly associations between genotypes and clinical characteristics. A total of 37 children (62 days-12 years [median 5.5 years]) were included in this study. Pneumocystis was diagnosed by microscopy using Grocott-Gomori methenamine silver stain in 12 cases and by nested PCR using mtLSUrRNA in 25 cases. Genotyping was performed using three different genes, mitochondrial large subunit ribosomal RNA (mtLSUrRNA), dihydropteroate synthase (DHPS) and dihydrofolate reductase (DHFR). mtLSUrRNA genotype 3 and novel mutations at the gene target DHFR (401 T > C) and DHPS 96/98 were frequently observed and clinically associated with severe PCP and treatment failure. Phylogenetic analyses revealed 13 unique sequence types (STs). Two STs (i) 3-DHFR 401 T > C-DHPS 96/98 - PJ1 and (ii) 3-DHFR 401 T > C-DHPS 96- PJ3 were significantly associated with treatment failure and high mortality among PCP-positive patients. In conclusion, the present study strongly suggests the emergence of virulent P. jirovecii strains or genetic polymorphisms, leading to treatment failure and high mortality. Our study is the first of its kind from the Indian subcontinent and has highlighted the genetic diversity of Pneumocystis jirovecii among children and their clinical outcomes. These findings emphasize the need to focus more on genotypes to better understand the epidemiology of Pneumocystis pneumonia.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.