Editor’s Choice Articles

Editor’s Choice articles are based on recommendations by the scientific editors of MDPI journals from around the world. Editors select a small number of articles recently published in the journal that they believe will be particularly interesting to readers, or important in the respective research area. The aim is to provide a snapshot of some of the most exciting work published in the various research areas of the journal.

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8 pages, 206 KiB  
Commentary
Clinical and Occupational Predictors of Mortality in Ebola Virus Disease: A Commentary from the Democratic Republic of Congo (2018–2020)
by Jean Paul Muambangu Milambo and Charles Bitamazire Businge
Infect. Dis. Rep. 2025, 17(3), 71; https://doi.org/10.3390/idr17030071 - 18 Jun 2025
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Abstract
Background: This commentary analyzes demographic, clinical, and occupational characteristics associated with Ebola virus disease (EVD) outcomes during the 2018–2020 outbreak in the Democratic Republic of Congo (DRC). Methods: A total of 3477 EVD cases were included. Descriptive statistics and univariate and multivariate Cox [...] Read more.
Background: This commentary analyzes demographic, clinical, and occupational characteristics associated with Ebola virus disease (EVD) outcomes during the 2018–2020 outbreak in the Democratic Republic of Congo (DRC). Methods: A total of 3477 EVD cases were included. Descriptive statistics and univariate and multivariate Cox regression analyses were performed to evaluate associations between clinical outcomes and patient characteristics. Comorbidity estimates and healthcare worker (HCW) occupational exposure data were incorporated based on the literature. Results: The median age was 26.5 years (SD = 16.1), with the majority (59.7%) aged 20–59. Males represented 51.3% of the cohort. Most patients (81.8%) worked in occupations that were not disease-exposing. Overall, 450 patients (12.9%) died. Although comorbidities initially appeared predictive of mortality (unadjusted HR: 3.05; 95% CI: 2.41–3.87), their effect was not statistically significant after adjustment (adjusted HR: 1.17; 95% CI: 0.87–1.59; p = 0.301). The strongest predictor of death was clinical status at admission: patients classified as “very sick” had an alarmingly high adjusted hazard ratio (HR) of 236.26 (95% CI: 33.18–1682.21; p < 0.001). Non-disease-exposing occupations were also associated with increased mortality (adjusted HR: 1.75; 95% CI: 1.33–2.31; p < 0.001). Conclusions: Despite improvements in outbreak response, mortality remains disproportionately high among patients presenting in critical condition and those outside the health sector. These findings underscore the importance of early detection strategies and enhanced protection for all occupational groups during EVD outbreaks. Full article
16 pages, 1995 KiB  
Review
Gut Microbiome in Pulmonary Arterial Hypertension—An Emerging Frontier
by Sasha Z. Prisco, Suellen D. Oliveira, E. Kenneth Weir, Thenappan Thenappan and Imad Al Ghouleh
Infect. Dis. Rep. 2025, 17(3), 66; https://doi.org/10.3390/idr17030066 - 9 Jun 2025
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Abstract
Pulmonary arterial hypertension (PAH) is an irreversible disease characterized by vascular and systemic inflammation, ultimately leading to right ventricular failure. There is a great need for adjunctive therapies to extend survival for PAH patients. The gut microbiome influences the host immune system and [...] Read more.
Pulmonary arterial hypertension (PAH) is an irreversible disease characterized by vascular and systemic inflammation, ultimately leading to right ventricular failure. There is a great need for adjunctive therapies to extend survival for PAH patients. The gut microbiome influences the host immune system and is a potential novel target for PAH treatment. We review the emerging preclinical and clinical evidence which strongly suggests that there is gut dysbiosis in PAH and that alterations in the gut microbiome may either initiate or facilitate the progression of PAH by modifying systemic immune responses. We also outline approaches to modify the intestinal microbiome and delineate some practical challenges that may impact efforts to translate preclinical microbiome findings to PAH patients. Finally, we briefly describe studies that demonstrate contributions of infections to PAH pathogenesis. We hope that this review will propel further investigations into the mechanisms by which gut dysbiosis impacts PAH and/or right ventricular function, approaches to modify the gut microbiome, and the impact of infections on PAH development or progression. Full article
(This article belongs to the Special Issue Pulmonary Vascular Manifestations of Infectious Diseases)
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19 pages, 7883 KiB  
Article
Differential Effects of Human Immunodeficiency Virus Nef Variants on Pulmonary Vascular Endothelial Cell Dysfunction
by Amanda K. Garcia, Noelia C. Lujea, Javaria Baig, Eli Heath, Minh T. Nguyen, Mario Rodriguez, Preston Campbell, Isabel Castro Piedras, Edu Suarez Martinez and Sharilyn Almodovar
Infect. Dis. Rep. 2025, 17(3), 65; https://doi.org/10.3390/idr17030065 - 6 Jun 2025
Viewed by 715
Abstract
Background: Human Immunodeficiency Virus (HIV) infections remain a source of cardiopulmonary complications among people receiving antiretroviral therapy. Still to this day, pulmonary hypertension (PH) severely affects the prognosis in this patient population. The persistent expression of HIV proteins, even during viral suppression, has [...] Read more.
Background: Human Immunodeficiency Virus (HIV) infections remain a source of cardiopulmonary complications among people receiving antiretroviral therapy. Still to this day, pulmonary hypertension (PH) severely affects the prognosis in this patient population. The persistent expression of HIV proteins, even during viral suppression, has been implicated in vascular dysfunction; however, little is known about the specific effects of these proteins on the pulmonary vasculature. This study investigates the impact of Nef variants derived from HIV-positive pulmonary hypertensive and normotensive donors on pulmonary vascular cells in vitro. Methods: We utilized well-characterized Nef molecular constructs to examine their effects on cell adhesion molecule gene expression (ICAM1, VCAM1, and SELE), pro-apoptotic gene expression (BAX, BAK), and vasoconstrictive endothelin-1 (EDN1) gene expression in endothelial nitric oxide synthase (eNOS) nitric oxide and the production and secretion of pro-inflammatory cytokines over 24, 48, and 72 h post-transfections with Nef variants. Results: HIV Nef variants SF2, NA7, and PH-associated Fr17 and 3236 induced a significant increase in adhesion molecule gene expression of ICAM1, VCAM1, and SELE. Pulmonary normotensive Nef 1138 decreased ICAM1 gene expression, but had increased VCAM1. PH Nef ItVR showed a consistent decrease in ICAM1 and no changes in SELE and VCAM1 expression. Further gene expression analyses of pro-apoptotic genes BAX and BAK demonstrated that Nef NA7, SF2, normotensive Nef 1138, and PH Nef Fr8, Fr9, Fr17, and 3236 variants significantly increased gene expression for apoptosis. Normotensive Nef 1138, as well as PH Nef Fr9 and ItVR, all displayed a statistically significant decrease in BAX expression. The expression of EDN1 had a statistically significant increase in samples treated with Nef NA7, SF2, normotensive Nef 2044 and PH Nef 3236, Fr17, and Fr8. Notably, PH-associated Nef variants sustained pro-inflammatory cytokine production, including IL-2, IL-4, and TNFα, while anti-inflammatory cytokine levels remained insufficient. Furthermore, eNOS was transiently upregulated by all Nef variants except for normotensive Nef 2044. Conclusions: The distinct effects of Nef variants on pulmonary vascular cell biology highlight the complex interplay between Nef, host factors, and vascular pathogenesis according to the variants. Full article
(This article belongs to the Special Issue Pulmonary Vascular Manifestations of Infectious Diseases)
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