| 1. |
- Ahmad, Sajjad, et al.
(författare)
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Novel mutations in genes of the IL-12/IFN-γ axis cause susceptibility to tuberculosis
- 2023
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Ingår i: Journal of Infection and Public Health. - : Elsevier. - 1876-0341 .- 1876-035X. ; 16:9, s. 1368-1378
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Tidskriftsartikel (refereegranskat)abstract
- Background: The IL-12/23/ISG15-IFN-γ pathway is the main immunological pathway for controlling intra-macrophagic microorganisms such as Mycobacteria, Salmonella, and Leishmania spp. Consequently, upon mutations in genes of the IL-12/23/ISG15-IFN-γ pathway cause increased susceptibility to intra-macrophagic pathogens, particularly to Mycobacteria. Therefore, the purpose of this study was to characterize the mutations in genes of the IL-12/23/ISG15-IFN-γ pathway in severe tuberculosis (TB) patients.Methods: Clinically suspected TB was initially confirmed in four patients (P) (P1, P2, P3, and P4) using the GeneXpert MTB/RIF and culturing techniques. The patients' Peripheral blood mononuclear cells (PBMCs) were then subjected to ELISA to measure Interleukin 12 (IL-12) and interferon gamma (IFN-γ). Flow cytometry was used to detect the surface expressions of IFN-γR1 and IFN-γR2 as well as IL-12Rβ1and IL-12Rβ2 on monocytes and T lymphocytes, respectively.The phosphorylation of signal transducer and activator of transcription 1(STAT1) on monocytes and STAT4 on T lymphocytes were also detected by flow cytometry. Sanger sequencing was used to identify mutations in the IL-12Rβ1, STAT1, NEMO, and CYBB genes.Results: P1's PBMCs exhibited reduced IFN-γ production, while P2's and P3's PBMCs exhibited impaired IL-12 induction. Low IL-12Rβ1 surface expression and reduced STAT4 phosphorylation were demonstrated by P1's T lymphocytes, while impaired STAT1 phosphorylation was detected in P2's monocytes. The impaired IκB-α degradation and abolished H2O2 production in monocytes and neutrophils of P3 and P4 were observed, respectively. Sanger sequencing revealed novel nonsense homozygous mutation: c.191 G>A/p.W64 * in exon 3 of the IL-12Rβ1 gene in P1, novel missense homozygous mutation: c.107 A>T/p.Q36L in exon 3 of the STAT1 gene in P2, missense hemizygous mutation:: c.950 A>C/p.Q317P in exon 8 of the NEMO gene in P3, and nonsense hemizygous mutation: c.868 C>T/p.R290X in exon 8 of CYBB gene in P4.Conclusion: Our findings broaden the clinical and genetic spectra associated with IL-12/23/ISG15-IFN-γ axis anomalies. Additionally, our data suggest that TB patients in Pakistan should be investigated for potential genetic defects due to high prevalence of parental consanguinity and increased incidence of TB in the country.
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| 2. |
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| 3. |
- Kheir, Sahar M., et al.
(författare)
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Results of application of the ISPD guidelines to the management of peritoneal dialysis in a single center in Sudan
- 2017
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Ingår i: Journal of Infection and Public Health. - : ELSEVIER SCIENCE LONDON. - 1876-0341 .- 1876-035X. ; 10:3, s. 348-352
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Tidskriftsartikel (refereegranskat)abstract
- The culture negative peritonitis in Sudan 2010 was 46% exceeding 20% of the recommended ISPD (International Society for Peritoneal Dialysis) guidelines. This study reports an update after applying the standard ISPD protocol. The routine method was replaced by ISPD protocol. The culture negative rate using the ISPD guidelines dropped from 46% in the year 2010, to 39% in the year 2011, to 5% in the 2012 and to zero percent in the year 2013. Bacterial and fungal species represent (86.76%) and (13.23%) of infection and most isolates showed low resistance rate to antibiotics. Touch contamination added significantly (p = 0.0006) to the risk of contracting Peritonitis. The risk of contracting Peritonitis was 1.53 times higher in the group exposed by touch contamination. None of the other risk factors contributed significantly to Peritonitis. The study highlights the importance of implementing high hygiene practice. (C) 2016 King Saud Bin Abdulaziz University for Health Sciences. Published by Elsevier Limited. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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| 4. |
- Kumari, Khushbu, et al.
(författare)
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The paradigm of prophylactic viral outbreaks measures by microbial biosurfactants
- 2023
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Ingår i: Journal of Infection and Public Health. - : Elsevier. - 1876-0341 .- 1876-035X. ; 16:4, s. 575-587
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Forskningsöversikt (refereegranskat)abstract
- The recent emergence and outbreak of the COVID-19 pandemic confirmed the incompetence of countries across the world to deal with a global public health emergency. Although the recent advent of vaccines is an important prophylactic measure, effective clinical therapy for SARS-Cov-2 is yet to be discovered. With the increasing mortality rate, research has been focused on understanding the pathogenic mechanism and clinical parameters to comprehend COVID-19 infection and propose new avenues for naturally occurring molecules with novel therapeutic properties to alleviate the current situation. In accordance with recent clinical studies and SARS-CoV-2 infection markers, cytokine storm and oxidative stress are entwined pathogenic processes in COVID-19 progression. Lately, Biosurfactants (BSs) have been studied as one of the most advanced biomolecules of microbial origin with anti-inflammatory, antioxidant, antiviral properties, antiadhesive, and antimicrobial properties. Therefore, this review inspects available literature and proposes biosurfactants with these properties to be encouraged for their extensive study in dealing with the current pandemic as new pharmaceutics in the prevention and control of viral spread, treating the symptoms developed after the incubation period through different therapeutic approaches and playing a potential drug delivery model.
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| 5. |
- Lindberg, Maria, et al.
(författare)
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MRSA-colonized persons’ and healthcare personnel's experiences of patient-professional interactions in and responsibilities for infection prevention in Sweden
- 2014
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Ingår i: Journal of Infection and Public Health. - : Elsevier BV. - 1876-0341 .- 1876-035X. ; 7:5, s. 427-435
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Tidskriftsartikel (refereegranskat)abstract
- Background: Patient-professional interactions and adherence to infection control measures are central to the quality of care and patient safety in healthcare. Persons colonized with methicillin-resistant Staphylococcus aureus (MRSA) describe insufficient support and unprofessional behavior among healthcare personnel. Methods: A descriptive qualitative study was conducted to investigate managers', physicians', registered nurses' and MRSA-colonized persons' experiences of patient-professional interactions in relation to and responsibilities for infection prevention in the care of colonized patients. Five persons with MRSA colonization and 20 healthcare personnel employed within infection, hematology, nephrology or primary healthcare settings participated. The data were collected using open-ended semi-structured individual interviews with the MRSA-colonized persons and semi-structured focus group interviews with the healthcare personnel. Results: The participants perceived MRSA as an indefinable threat and described that the responsibility for infection prevention is important, but such adherence was a neglected and negotiable issue. The described actions that were acknowledged as unprofessional and inappropriate adherence to infection prevention resulted in stigmatized patients. Conclusion: Colonized persons' and healthcare personnel's understanding of MRSA determines whether the personnel's behavior is perceived as proper or improper. Individual responsibility for patient-professional interactions in relation to MRSA colonization and adherence to infection control measures should be more stringent.
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| 6. |
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| 7. |
- Parsia, Yasaman, et al.
(författare)
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Minimization of nosocomial infections risks by a decision algorithm for upgrading of healthcare facilities
- 2020
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Ingår i: Journal of Infection and Public Health. - : Elsevier BV. - 1876-0341 .- 1876-035X. ; 13:5, s. 746-752
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Tidskriftsartikel (refereegranskat)abstract
- © 2020 Background: Nosocomial infection (NI) increased the rate of mortality, morbidity and financial load for patients and Healthcare Facilities (HFs). Regarding to many advances in controlling NIs, it is still a worldwide problem. Layout of HF (department configuration) has a vital role in controlling NIs, because the pathogen microorganisms can transmit among departments. Some departments can transmit microorganisms much more than the other departments, called cause, and some of them received the microorganisms more than the others, called effect. Both are risky. Objective: This study attempts to propose a comprehensive algorithm for selecting low risky department(s) for upgrading of HFs by use of Multiple Criteria Decision-Making (MCDM) methods. Methodology: Among MCDM methods, this study has hybrid WSM and Expanded DEMATEL, beside modified Nominal Group Technique to minimize NIs risk in upgrading of HFs. The resulted decision-making algorithm is validated by implementing in a HF as a case study. Results: The final proposed algorithm and the resulted low risky departments are approved by head and manager of the HF. Therefore, the algorithm is valid, and the feasibility of algorithm is approved by achieving the result from implementing of algorithm in the case study. Conclusion: To conclude, the proposed algorithm can be a solution to minimize the risks of NIs, while upgrading, in each HFs and make the decision of HF's managers easier and logic.
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| 8. |
- Suleiman, Adeiza Shuaibu, et al.
(författare)
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A meta-meta-analysis of co-infection, secondary infections, and antimicrobial resistance in COVID-19 patients
- 2023
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Ingår i: Journal of Infection and Public Health. - : Elsevier BV. - 1876-0341 .- 1876-035X. ; 16:10, s. 1562-1590
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Forskningsöversikt (refereegranskat)abstract
- The newly discovered coronavirus SARS-CoV-2 has sparked a worldwide pandemic of COVID-19, which has caused havoc on medical infrastructures, economies, and cultures around the world. Determining the whole scenario is essential since SARS-CoV-2 variants and sub-variants keep appearing after vaccinations and booster doses. The objective of this secondary meta-analysis is to analysis co-infection, secondary infections, and antimicrobial resistance (AMR) in COVID-19 patients. This study used five significant databases to conduct a systematic review and an overlap meta-analysis to evaluate the pooled estimates of co-infections and secondary infections. The summary of the meta-analysis showed an overall co-infection effect of 26.19% (95% confidence intervals CI: 21.39–31.01, I2 =98.78, n = 14 meta-analysis) among patients with COVID-19. A coinfection effect of 11.13% (95% CI: 9.7–12.56, I2 =99.14, n = 11 meta-analysis) for bacteria; 9.69% (95% CI: 1.21–7.90, I2 =98.33) for fungal and 3.48% (95% CI: 2.15–4.81, I2 =95.84) for viruses. A secondary infection effect of 19.03% (95% CI: 9.53–28.54, I2 =85.65) was pooled from 2 meta-analyses (Ave: 82 primary studies). This is the first study that compiles the results of all the previous three years meta-analyses into a single source and offers strong proof of co-infections and secondary infections in COVID-19 patients. Early detection of co-infection and AMR is crucial for COVID-19 patients in order to effective treatment.
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| 9. |
- Zahl, Per-Henrik, et al.
(författare)
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Mortality in Norway and Sweden during the COVID-19 pandemic 2020-22 : A comparative study
- 2024
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Ingår i: Journal of Infection and Public Health. - : ELSEVIER SCIENCE LONDON. - 1876-0341 .- 1876-035X. ; 17:4, s. 719-726
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Tidskriftsartikel (refereegranskat)abstract
- Background: Norway and Sweden picked two different ways to mitigate the dissemination of the SARS-CoV2 virus. Norway introduced the strictest lockdown in Europe with strict border controls and intense virus tracking of all local outbreaks while Sweden did not. That resulted in 477 COVID-19 deaths (Norway) and 9737 (Sweden) in 2020, respectively. Methods: Weekly number of COVID-19 related deaths and total deaths for 2020-22 were collected as well as weekly number of deaths for 2015-19 which were used as controls when calculating excess mortality. During the first 12-18 months with high rate of virus transmission in the society, excess mortality rates were used as substitute for COVID-19 deaths. When excess mortality rates later turned negative because of mortality displacement, COVID-19 deaths adjusted for bias due to overreporting were used. Results: There were 17521 COVID-19 deaths in Sweden and 4272 in Norway in the study period. The rate ratio (RR) of COVID-19 related deaths in Sweden vs. Norway to the end of week 43, 2022, was 2.11 (95% CI 2.05-2.19). RR of COVID-19 related deaths vs. excess number of deaths were 2.5 (Sweden) and 1.3 (Norway), respectively. RR of COVID-19 deaths in Sweden vs. Norway after adjusting for mortality displacement and lockdown, was 1.35 (95% CI 1.31-1.39), corresponding to saving 2025 life in Norway. If including all deaths in 2022, RR= 1.28 (95% CI 1.24-1.31). Conclusions: Both COVID-19 related mortality and excess mortality rates are biased estimates. When adjusting for bias, mortality differences declined over time to about 30% higher mortality in Sweden after 30 months with pandemics. (c) 2023 The Author(s). Published by Elsevier Ltd on behalf of King Saud Bin Abdulaziz University for Health Sciences. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/ 4.0/).
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