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Jain P, Parikh S, Patel P, Shah S, Patel K. Comprehensive insights into herbal P-glycoprotein inhibitors and nanoformulations for improving anti-retroviral therapy efficacy. J Drug Target 2024:1-25. [PMID: 38748868 DOI: 10.1080/1061186x.2024.2356751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 05/10/2024] [Indexed: 05/28/2024]
Abstract
The worldwide HIV cases were 39.0 million (33.1-45.7 million) in 2022. Due to genetic variations, HIV-1 is more easily transmitted than HIV-2 and favours CD4 + T cells and macrophages, producing AIDS. Conventional HIV drug therapy has many drawbacks, including adherence issues leading to resistance, side effects that lower life quality, drug interactions, high costs limiting global access, inability to eliminate viral reservoirs, chronicity requiring lifelong treatment, emerging toxicities, and a focus on managing infections. Conventional dosage forms have bioavailability issues due to intestinal P-glycoprotein (P-gp) efflux, which can reduce anti-retroviral drug efficacy and lead to resistance. Use of phyto-constituents with P-gp regulating actions has great benefits for semi-synthetic modification to create formulations with greater bioavailability and reduced toxicity, which improves drug effectiveness. Lipid-based nanocarriers, solid lipid nanoparticles, nanostructured lipid carriers, polymer-based nanocarriers, and inorganic nanoparticles may inhibit P-gp efflux. Employing potent P-gp inhibitors within nanocarriers as a Trojan horse approach can enhance the intracellular accumulation of anti-retroviral drugs (ARDs), which are substrates for efflux transporters. This technique increases oral bioavailability and offers lower-dose options, boosting HIV patient compliance and lowering costs. Molecular docking of the inhibitor with P-gp may anticipate optimum binding and function, allowing drug efflux to be minimised.
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Affiliation(s)
- Prexa Jain
- Department of Pharmaceutical Technology, L. J. Institute of Pharmacy, L J University, Ahmedabad, India
| | - Shreni Parikh
- Department of Pharmaceutical Technology, L. J. Institute of Pharmacy, L J University, Ahmedabad, India
| | - Paresh Patel
- Department of Pharmaceutical Chemistry, L. J. Institute of Pharmacy, L J University, Ahmedabad, India
| | - Shreeraj Shah
- Department of Pharmaceutical Technology, L. J. Institute of Pharmacy, L J University, Ahmedabad, India
| | - Kaushika Patel
- Department of Pharmaceutical Technology, L. J. Institute of Pharmacy, L J University, Ahmedabad, India
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Asgedom YS, Kebede TM, Gebrekidan AY, Koyira MM, Azeze GA, Lombebo AA, Efa AG, Haile KE, Kassie GA. Prevalence of metabolic syndrome among people living with human immunodeficiency virus in sub-Saharan Africa: a systematic review and meta-analysis. Sci Rep 2024; 14:11709. [PMID: 38777850 PMCID: PMC11111734 DOI: 10.1038/s41598-024-62497-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 05/17/2024] [Indexed: 05/25/2024] Open
Abstract
Metabolic syndrome (MetS) poses a significant clinical challenge for individuals living with HIV (PLHIV). In sub-Saharan Africa (SSA), this condition is becoming a growing concern, owing to lifestyle changes and an increasingly aging population. Several SSA countries have reported on the prevalence of MetS. However, these estimates may be outdated because numerous recent studies have updated MetS prevalence among PLHIV in these countries. Moreover, prior research has focused on various study designs to report the pooled prevalence, which is a methodological limitation. Therefore, this systematic review and meta-analysis aimed to determine the pooled estimates of MetS in PLHIV in SSA by addressing these gaps. We systematically searched Google Scholar, Science Direct, Scopus, Web of Sciences, EMBASE, and PubMed/Medline for the prevalence of MetS and its subcomponents among people with HIV in sub-Saharan Africa. The estimated pooled prevalence was presented using a forest plot. Egger's and Begg's rank regression tests were used to assess evidence of publication bias. Twenty-five studies fulfilled the inclusion criteria after review of the updated PRISMA guidelines. The pooled prevalence of MetS was 21.01% [95% CI: (16.50, 25.51)] and 23.42% [95% CI: (19.16, 27.08)] to the National Cholesterol Education Program Adult Treatment Panel III (NCEP/ATP III) and International Diabetes Federation (IDF) criteria, respectively. Low levels of high-density lipoprotein cholesterol (Low HDL) at 47.25% [95% CI: 34.17, 60.33)] were the highest reported individual subcomponent, followed by abdominal obesity at 38.44% [95% CI: (28.81, 48.88)]. The prevalence of MetS is high in sub-Saharan Africa. Low HDL levels and increased waist circumference/abdominal obesity were the most prevalent components of MetS. Therefore, early screening for MetS components and lifestyle modifications is required. Policymakers should develop strategies to prevent MetS before an epidemic occurs.PROSPERO: CRD42023445294.
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Lakhani DA, Deng F, Lin DDM. Infectious Diseases of the Brain and Spine: Fungal Diseases. Magn Reson Imaging Clin N Am 2024; 32:335-346. [PMID: 38555144 DOI: 10.1016/j.mric.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Advances in treatments of autoimmune diseases, acquired immunodeficiency syndrome, organ transplantation, and the use of long-term devices have increased the rates of atypical infections due to prolonged immune suppression. There is a significant overlap in imaging findings of various fungal infections affecting the central nervous system (CNS), often mimicking those seen in neoplastic and noninfectious inflammatory conditions. Nonetheless, there are imaging characteristics that can aid in distinguishing certain atypical infections. Hence, familiarity with a wide range of infectious agents is an important part of diagnostic neuroradiology. In this article, an in-depth review of fungal diseases of the CNS is provided.
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Affiliation(s)
- Dhairya A Lakhani
- Division of Neuroradiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps B-100 Baltimore, MD 21287, USA
| | - Francis Deng
- Division of Neuroradiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps B-100 Baltimore, MD 21287, USA
| | - Doris D M Lin
- Division of Neuroradiology, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Phipps B-100 Baltimore, MD 21287, USA.
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Pape S, Karki SJ, Heinsohn T, Brandes I, Dierks ML, Lange B. Tuberculosis case fatality is higher in male than female patients in Europe: a systematic review and meta-analysis. Infection 2024:10.1007/s15010-024-02206-z. [PMID: 38521839 DOI: 10.1007/s15010-024-02206-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 02/02/2024] [Indexed: 03/25/2024]
Abstract
PURPOSE Epidemiological TB data indicate differences in infection prevalence, progression rates, and clinical disease incidence between sexes. In contrast, evidence on sex-specific differential (post) TB case fatality in Europe has not been synthesized systematically. METHODS We searched electronic databases and grey literature up to December 2020 for studies reporting sex-stratified TB death data for Europe. The JBI critical appraisal tools served for bias risk assessment and subgroup analyses for studying heterogeneity. Random-effects models meta-analyses enabled estimating pooled relative risks of sex-associated TB fatality. Considering associations of comorbidities and risk factors on fatality differences, we applied relative risk meta-regression. RESULTS Based on 17,400 records screened, 117 studies entered quantitative analyses. Seventy-five studies providing absolute participant data with moderate quality and limited sex stratification reported 33 to 235,000 TB cases and 7 to 27,108 deaths. The pooled male-to-female TB fatality risk ratio was 1.4 [1.3-1.5]. Heterogeneity was high between studies and subgroups. Study time, concurrent comorbidities (e.g., HIV, diabetes, cancers), and mean participant ages showed no effect modification. We identified higher male TB fatality in studies with higher homelessness (coefficient 3.18, 95% CI [-0.59 to 6.94], p-value 0.10) and lower migrants proportion (coefficient - 0.24, 95% CI [- 0.5 to 0.04], p-value 0.09). CONCLUSION We found 30-50% higher TB case fatality for males in Europe. Except for homelessness, migration, and a trend for some comorbidities, assessing effect modification could not reduce our meta-analysis' high heterogeneity. Public health authorities should take heed of this higher risk of dying in male patients' treatment services.
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Affiliation(s)
- Stephanie Pape
- Institute for Epidemiology, Social Medicine and Health Systems, Hannover Medical School, Hannover, Germany.
- Department of Epidemiology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany.
| | - Sudip Jung Karki
- Department of Epidemiology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
- Faculty of Medicine, Université Toulouse III Paul Sabatier, Toulouse, Occitanie, France
| | - Torben Heinsohn
- Department of Epidemiology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
- German Center for Infection Research (DZIF), Braunschweig, Germany
| | - Iris Brandes
- Institute for Epidemiology, Social Medicine and Health Systems, Hannover Medical School, Hannover, Germany
| | - Marie-Luise Dierks
- Institute for Epidemiology, Social Medicine and Health Systems, Hannover Medical School, Hannover, Germany
| | - Berit Lange
- Department of Epidemiology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
- German Center for Infection Research (DZIF), Braunschweig, Germany
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Vallée A, Majerholc C, Zucman D, Livrozet JM, Laurendeau C, Bouée S, Prevoteau du Clary F. Mortality and comorbidities in a Nationwide cohort of HIV-infected adults: comparison to a matched non-HIV adults' cohort, France, 2006-18. Eur J Public Health 2024:ckae031. [PMID: 38409963 DOI: 10.1093/eurpub/ckae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND Human immunodeficiency virus (HIV) remains a significant cause of morbidity and mortality worldwide. The aim of this study was to describe the mortality rate and associated comorbidities in a nationwide population-based cohort of persons living with HIV (PLWHIV) and to compare it with mortality in an age and gender-matched cohort of non-HIV individuals in France. METHODS Using data from the French national health data system, we identified and included 173 712 PLWHIV (66.5% men) and 173 712 non-HIV participants (66.5% men) matched for age and gender. PLHIV were identified based on ICD-10 HIV diagnoses, HIV-specific laboratory tests, and/or prescriptions for antiretroviral therapy specific to HIV. Hazard ratios (HRs) of mortality were assessed using multiple Cox regression models. RESULTS During the 13 years of follow-up (2006-18), we observed 20 018 deaths among PLWHIV compared with 6262 deaths among non-HIV participants (11.52% vs. 3.60%, P < 0.001). The over-mortality of PLWHIV was expressed by univariable HR = 2.135 (2.072-2.199), which remained significant after adjustment for region, Complementary Universal Health Insurance and AME, with multivariable HR = 2.182 (2.118-2.248). The results remained significant after adjusting for comorbidities, including infectious diseases [HR = 1.587 (1.538-1.638)]. Notably, PLWHIV were more importantly associated with mortality in women [HR = 2.966 (2.767-3.180)], compared in men [HR = 1.961 (1.898-2.027)]. CONCLUSION Although the life expectancy of PLWHIV has globally increased, the causes of death should be prioritized in prevention policies and care management. Gender-specific policies should be highlighted, as we observed a higher impact of HIV mortality in women.
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Affiliation(s)
- Alexandre Vallée
- Department of Epidemiology and Public Health, Foch Hospital, Suresnes, France
| | - Catherine Majerholc
- Department of Internal Medicine, Réseau Ville-Hôpital Val de Seine, Foch Hospital, Suresnes, France
| | - David Zucman
- Department of Internal Medicine, Réseau Ville-Hôpital Val de Seine, Foch Hospital, Suresnes, France
| | - Jean-Michel Livrozet
- Department of Infectious and Tropical Diseases, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
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Mabhida SE, Mchiza ZJ, Mokgalaboni K, Hanser S, Choshi J, Mokoena H, Ziqubu K, Masilela C, Nkambule BB, Ndwandwe DE, Kengne AP, Dludla PV. High-sensitivity C-reactive protein among people living with HIV on highly active antiretroviral therapy: a systemic review and meta-analysis. BMC Infect Dis 2024; 24:160. [PMID: 38308222 PMCID: PMC10838000 DOI: 10.1186/s12879-024-09050-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/23/2024] [Indexed: 02/04/2024] Open
Abstract
The pathological consequences of inflammation persist in people living with the human immunodeficiency virus (PLWH), regardless of the positive outcomes of highly active antiretroviral therapy (HAART). The current systematic review and meta-analysis aims to understand and explore the levels of high-sensitivity C-reactive protein (hs-CRP) and other cardiovascular disease (CVD)-risk factors including lipid profiles among PLWH on HAART. Major electronic databases including PubMed, Scopus, and Web of Science were searched to retrieve relevant global literature reporting on hs-CRP levels in PLWH on HAART. A total of twenty-two studies with an average participant age of 40 years were eligible for this systematic review and meta-analysis. Majority of the included studies were from Africa (n = 11), the United States (n = 6), and Europe (n = 5). Our systemic review showed that most studies reported increased levels of hs-CRP among PLWH on HAART when compared to controls (PLWH not on HAART or those without HIV), especially in studies from Africa. This was supported by a meta-analysis showing significantly elevated levels of hs-CRP in PLWH on HAART when compared to PLWH not on HAART (standardised mean difference [SMD] = 0.56; 95% CI = 0.10‑1.01, z = 2.41; p = 0.02) or those without HIV (SMD = 1.19; 95% CI = 0.76‑1.63, z = 5.35; p < 0.001). Where lipid profiles, as a major predictor for CVD risk, were also impaired in PLWH on HAART when compared to PLWH not on HAART and HIV-negative participants. In conclusion, elevated levels of hs-CRP and lipid levels are prevalent in PLWH on HAART, this may increase the risk of CVD complications, especially for those people living in Africa. However, more evidence in larger population studies is required to confirm these outcomes and unveil any possible clinical implications of HAART-induced modulation of hs-CRP levels in PLWH.
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Affiliation(s)
- Sihle E Mabhida
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Tygerberg, 7505, South Africa.
| | - Zandile J Mchiza
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Tygerberg, 7505, South Africa
- School of Public Health, University of the Western Cape, Bellville, 7535, South Africa
| | - Kabelo Mokgalaboni
- Department of Life and Consumer Sciences, University of South Africa, Roodepoort, 1709, South Africa
| | - Sidney Hanser
- Department of Physiology and Environmental Health, University of Limpopo, Sovenga, 0727, South Africa
| | - Joel Choshi
- Department of Physiology and Environmental Health, University of Limpopo, Sovenga, 0727, South Africa
| | - Haskly Mokoena
- Department of Physiology and Environmental Health, University of Limpopo, Sovenga, 0727, South Africa
| | - Khanyisani Ziqubu
- Department of Biochemistry, North-West University, Mmabatho, 2745, South Africa
| | - Charity Masilela
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, Richards Bay, 3880, South Africa
| | - Bongani B Nkambule
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, 4000, South Africa
| | - Duduzile E Ndwandwe
- Cochrane South Africa, South African Medical Research Council, Tygerberg, 7505, South Africa
| | - André P Kengne
- Non-Communicable Diseases Research Unit, South African Medical Research Council, Tygerberg, 7505, South Africa
- Department of Medicine, University of Cape Town, Cape Town, 7700, South Africa
| | - Phiwayinkosi V Dludla
- Cochrane South Africa, South African Medical Research Council, Tygerberg, 7505, South Africa
- Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, Richards Bay, 3880, South Africa
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Wang L, Lv H, Zhang X, Zhang X, Bai J, You S, Li X, Wang Y, Du J, Su Y, Huang W, Dai Y, Zhang W, Xu Y. Global prevalence, burden and trend in HIV and drug-susceptible tuberculosis co-infection from 1990 to 2019 and prediction to 2040. Heliyon 2024; 10:e23479. [PMID: 38205310 PMCID: PMC10776929 DOI: 10.1016/j.heliyon.2023.e23479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024] Open
Abstract
Objectives The purpose of this study is to describe the current situation and forecast the trends of co-infection between the human immunodeficiency virus (HIV) and drug-susceptible tuberculosis (DS-TB) in different countries, across various age groups and genders. Methods We obtained data on the number of cases, age-standardized incidence rate, age-standardized prevalence rate, age-standardized rate of disability-adjusted life years (DALYs), and age-standardized death rate from the Global Burden of Disease (GBD) 2019 database. These data were used to describe the distribution and burden of co-infection between the human immunodeficiency virus (HIV) and DS-TB in different regions, genders, and age groups. We employed joinpoint regression analysis to analyze the temporal trends from 1990 to 2019. Additionally, an age-period-cohort model was established to forecast the future trends of co-infection up to 2040. Results The prevalence and burden of co-infection varied across different age groups and genders. The territories with the higher disease burden were distributed in some Asian and African countries. In terms of temporal trends, the age-standardized incidence rate and age-standardized prevalence rate of HIV and DS-TB co-infection exhibited an overall increasing trend from 1990 to 2019, and the prediction indicated a slow downward trend from 2019 to 2040. Conclusions The co-infection of HIV and DS-TB posed a grave threat to public health and economic development. What's more, there existed a significant disparity between the actual state of co-infection and the desired goals for prevention and control.
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Affiliation(s)
- Longhao Wang
- Department of Health Statistics, Faculty of Military Preventive Medicine, Army Medical University, Chongqing, China
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Hengliang Lv
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
| | - Xueli Zhang
- Changchun University of Chinese Medicine, Changchun, China
| | - Xin Zhang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
| | - Junzhu Bai
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
| | - Shumeng You
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
| | - Xuan Li
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Yong Wang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Jingli Du
- Tuberculosis Prevention and Control Key Laboratory/Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The 8th Medical Center of PLA General Hospital, Beijing, China
| | - Yue Su
- Tuberculosis Prevention and Control Key Laboratory/Beijing Key Laboratory of New Techniques of Tuberculosis Diagnosis and Treatment, Senior Department of Tuberculosis, The 8th Medical Center of PLA General Hospital, Beijing, China
| | - Weilin Huang
- College of Basic Medicine, Army Medical University, Chongqing, China
| | - Yingzhong Dai
- College of Basic Medicine, Army Medical University, Chongqing, China
| | - Wenyi Zhang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China
| | - Yuanyong Xu
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
- Department of Epidemiology, School of Public Health, China Medical University, Shenyang, China
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Albertsen A. Discrimination Based on Personal Responsibility: Luck Egalitarianism and Healthcare Priority Setting. Camb Q Healthc Ethics 2024; 33:23-34. [PMID: 37646187 DOI: 10.1017/s0963180123000415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Luck egalitarianism is a responsibility-sensitive theory of distributive justice. Its application to health and healthcare is controversial. This article addresses a novel critique of luck egalitarianism, namely, that it wrongfully discriminates against those responsible for their health disadvantage when allocating scarce healthcare resources. The philosophical literature about discrimination offers two primary reasons for what makes discrimination wrong (when it is): harm and disrespect. These two approaches are employed to analyze whether luck egalitarian healthcare prioritization should be considered wrongful discrimination. Regarding harm, it is very plausible to consider the policies harmful but much less reasonable to consider those responsible for their health disadvantages a socially salient group. Drawing on the disrespect literature, where social salience is typically not required for something to be discrimination, the policies are a form of discrimination. They are, however, not disrespectful. The upshot of this first assessment of the discrimination objection to luck egalitarianism in health is, thus, that it fails.
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Affiliation(s)
- Andreas Albertsen
- Centre for the Experimental-Philosophical Study of Discrimination, Department of Political Science, Aarhus BSS, Aarhus University, Aarhus, Denmark
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Teymouri S, Pourhajibagher M, Bahador A. Exosomes: Friends or Foes in Microbial Infections? Infect Disord Drug Targets 2024; 24:e170124225730. [PMID: 38317472 DOI: 10.2174/0118715265264388231128045954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/24/2023] [Accepted: 10/27/2023] [Indexed: 02/07/2024]
Abstract
The use of new approaches is necessary to address the global issue of infections caused by drug-resistant pathogens. Antimicrobial photodynamic therapy (aPDT) is a promising approach that reduces the emergence of drug resistance, and no resistance has been reported thus far. APDT involves using a photosensitizer (PS), a light source, and oxygen. The mechanism of aPDT is that a specific wavelength of light is directed at the PS in the presence of oxygen, which activates the PS and generates reactive oxygen species (ROS), consequently causing damage to microbial cells. However, due to the PS's poor stability, low solubility in water, and limited bioavailability, it is necessary to employ drug delivery platforms to enhance the effectiveness of PS in photodynamic therapy (PDT). Exosomes are considered a desirable carrier for PS due to their specific characteristics, such as low immunogenicity, innate stability, and high ability to penetrate cells, making them a promising platform for drug delivery. Additionally, exosomes also possess antimicrobial properties, although in some cases, they may enhance microbial pathogenicity. As there are limited studies on the use of exosomes for drug delivery in microbial infections, this review aims to present significant points that can provide accurate insights.
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Affiliation(s)
- Samane Teymouri
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Pourhajibagher
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Bahador
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Fellowship in Clinical Laboratory Sciences, BioHealth Lab, Tehran, Iran
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Powell-Jackson T, King JJC, Makungu C, Quaife M, Goodman C. Management Practices and Quality of Care: Evidence from the Private Health Care Sector in Tanzania. ECONOMIC JOURNAL (LONDON, ENGLAND) 2024; 134:436-456. [PMID: 38077853 PMCID: PMC10702364 DOI: 10.1093/ej/uead075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 09/05/2023] [Indexed: 02/12/2024]
Abstract
We measure the adoption of management practices in over 220 private for-profit and non-profit health facilities in 64 districts across Tanzania and link these data to process quality-of-care metrics, assessed using undercover standardised patients and clinical observations. We find that better managed health facilities are more likely to provide correct treatment in accordance with national treatment guidelines, adhere to a checklist of essential questions and examinations, and comply with infection prevention and control practices. Moving from the 10th to the 90th percentile in the management practice score is associated with a 48% increase in correct treatment. We then leverage a large-scale field experiment of an internationally recognised management support intervention in which health facilities are assessed against comprehensive standards, given an individually tailored quality improvement plan and supported through training and mentoring visits. We find zero to small effects on management scores, suggesting that improving management practices in this setting may be challenging.
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Odhiambo JN, Dolan C, Malik AA, Tavel A. China's hidden role in malaria control and elimination in Africa. BMJ Glob Health 2023; 8:e013349. [PMID: 38114239 DOI: 10.1136/bmjgh-2023-013349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 11/15/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Insufficient funding is hindering the achievement of malaria elimination targets in Africa, despite the pressing need for increased investment in malaria control. While Western donors attribute their inaction to financial constraints, the global health community has limited knowledge of China's expanding role in malaria prevention. This knowledge gap arises from the fact that China does not consistently report its foreign development assistance activities to established aid transparency initiatives. Our work focuses on identifying Chinese-funded malaria control projects throughout Africa and linking them to official data on malaria prevalence. By doing so, we aim to shed light on China's contributions to malaria control efforts, analysing their investments and assessing their impact. This would provide valuable insights into the development of effective financing mechanisms for future malaria control in Africa. METHODS Our research used AidData' s recently released Global Chinese Development Finance Dataset V.2.0 providing comprehensive coverage of all official sector Chinese development financing across Africa, from which we identify 224 Chinese-funded malaria projects in Sub-Saharan Africa (SSA) committed between 2002 and 2017. We conducted an analysis of the spending patterns by year, country and regions within Africa and compared it with data on population-adjusted malaria prevalence, sourced from the Malaria Atlas Project. RESULTS Chinese-financed malaria projects Africa mainly focused on three areas: the provision of medical supplies (72.32%), the construction of basic health infrastructure (17.86%) and the deployment of anti-malaria experts (3.57%). Moreover, nearly 39% of the initiatives were concentrated in just four countries: the Democratic Republic of Congo, Central African Republic, Uganda and Liberia. Additionally, China's development financing amount showed a weak negative correlation (-0.2393) with population-weighted malaria prevalence. We concluded that the extent and direction of China's support are not adequately tailored to address malaria challenges in different countries. CONCLUSION With China's increasing engagement in global health, it is anticipated that malaria control will continue to be a prominent priority on its development assistance agenda. This is attributed to China's vast expertise in malaria elimination, coupled with its substantial contribution as a major producer of malaria diagnostics and treatments.
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Affiliation(s)
- Julius Nyerere Odhiambo
- Department of Kinesiology and Health Sciences, William & Mary, Williamsburg, Virginia, USA
- Ignite Global Health Research Lab, Global Research Institute, William & Mary, Williamsburg, Virginia, USA
| | - Carrie Dolan
- Department of Kinesiology and Health Sciences, William & Mary, Williamsburg, Virginia, USA
- Ignite Global Health Research Lab, Global Research Institute, William & Mary, Williamsburg, Virginia, USA
| | - Ammar A Malik
- AidData, Global Research Institute, William & Mary, Williamsburg, Virginia, USA
| | - Aaron Tavel
- Ignite Global Health Research Lab, Global Research Institute, William & Mary, Williamsburg, Virginia, USA
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Bruckner TA, Lin TK, Liu J, Bornemisza O, Ajuebor O, Diallo K, Cometto G. A novel approach to estimate the impact of health workforce investments on health outcomes through increased coverage of HIV, TB and malaria services. HUMAN RESOURCES FOR HEALTH 2023; 21:67. [PMID: 37605211 PMCID: PMC10441693 DOI: 10.1186/s12960-023-00854-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 08/08/2023] [Indexed: 08/23/2023]
Abstract
BACKGROUND Globally, HIV, TB and malaria account for an estimated three million deaths annually. The Global Fund partnered with the World Health Organization to assist countries with health workforce planning in these areas through the development of an integrated health workforce investment impact tool. Our study illustrates the development of a user-friendly tool (with two MS Excel calculator subcomponents) that computes associations between human resources for health (HRH) investment inputs and reduced morbidity and mortality from HIV, TB, and malaria via increased coverage of effective treatment services. METHODS We retrieved from the peer-reviewed literature quantitative estimates of the relation among HRH inputs and HRH employment and productivity. We converted these values to additional full-time-equivalent doctors, nurses and midwives (DNMs). We used log-linear regression to estimate the relation between DNMs and treatment service coverage outcomes for HIV, TB, and malaria. We then retrieved treatment effectiveness parameters from the literature to calculate lives saved due to expanded treatment coverage for HIV, TB, and malaria. After integrating these estimates into the tool, we piloted it in four countries. RESULTS In most countries with a considerable burden of HIV, TB, and malaria, the health workforce investments include a mix of pre-service education, full remuneration of new hires, various forms of incentives and in-service training. These investments were associated with elevated HIV, TB and malaria treatment service coverage and additional lives saved. The country case studies we developed in addition, indicate the feasibility and utility of the tool for a variety of international and local actors interested in HRH planning. CONCLUSIONS The modelled estimates developed for illustrative purposes and tested through country case studies suggest that HRH investments result in lives saved across HIV, TB, and malaria. Furthermore, findings show that attainment of high targets of specific treatment coverage indicators would require a substantially greater health workforce than what is currently available in most LMICs. The open access tool can assist with future HRH planning efforts, particularly in LMICs.
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Affiliation(s)
- Tim A Bruckner
- Program in Public Health and Center for Population, Inequality, and Policy, University of California, Irvine, USA
| | - Tracy K Lin
- Institute for Health and Aging, Bixby Center for Global Reproductive Health, University of California, San Francisco. 409 Illinois St. 123J, San Francisco, CA, 94158, USA
| | - Jenny Liu
- Institute for Health and Aging, Bixby Center for Global Reproductive Health, University of California, San Francisco. 409 Illinois St. 123J, San Francisco, CA, 94158, USA
| | - Olga Bornemisza
- Technical Advice and Partnerships Department, The Global Fund, Chem. du Pommier 40, Le Grand-Saconnex, 1218, Geneva, Switzerland
| | - Onyema Ajuebor
- Health Workforce Department, World Health Organization, 20 Avenue Appia, 1211, Geneva, Switzerland.
| | - Khassoum Diallo
- Health Workforce Department, World Health Organization, 20 Avenue Appia, 1211, Geneva, Switzerland
| | - Giorgio Cometto
- Health Workforce Department, World Health Organization, 20 Avenue Appia, 1211, Geneva, Switzerland
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Siyu Y, Shihong L, Hanzhao L, Qiufang X, Jingyi L, Fengzhu C, Shaotan X, Gengsheng H. The burden of tuberculosis among adolescents and young adults in five Asian countries from 1990 to 2019. Arch Public Health 2023; 81:143. [PMID: 37553708 PMCID: PMC10410780 DOI: 10.1186/s13690-023-01160-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 07/27/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND Previous studies have shown that the risk of tuberculosis (TB) increases dramatically during adolescence. The objective of this article was to analyze the burdens and trends of TB incidence and mortality rates in Asian adolescents and young adults. METHODS Time series ecological study of TB incidence and mortality rates of adolescents and young adults aged 10-24 years from 1990 to 2019, using data extracted from the Global Burden of Disease website for 5 Asian countries. The annual percentage change was calculated by joinpoint regression analysis to estimate the trends in the age-standardized incidence rate (ASIR) and age-standardized death rate (ASDR). RESULTS The highest ASIR per 100,000 person-years in 2019 was in Mongolia [74 (95% uncertainty interval (UI), 51 to 105)], while the lowest was in Japan [4 (95% UI, 2 to 6)]. The highest ASDR per 100,000 person-years was in Mongolia [2 (95% UI, 1 to 3)], while the lowest was in Japan [0.009 (95% UI, 0.008 to 0.010)]. As the absolute number of cases and deaths decreased from 1990 to 2019, the ASIRs and ASDRs in all five countries also decreased. CONCLUSIONS Our finding revealed that although all five countries in Asia experienced descending TB incidence and mortality trend in past three decades, the trends were especially significant in developed countries and varied across geographic regions. This study may be crucial in helping policymakers make decisions and allocate appropriate resources to adolescent TB control strategies.
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Affiliation(s)
- Yu Siyu
- School of Public Health/Key Laboratory of Public Health Safety, Ministry of Education, Department of Nutrition and Food Science, Fudan University, Shanghai, 200032, China
- Shanghai Pudong New Area Center for Disease Control and Prevention, Fudan University Pudong Institute of Preventive Medicine, Shanghai, 200136, China
| | - Li Shihong
- Shanghai Pudong New Area Center for Disease Control and Prevention, Fudan University Pudong Institute of Preventive Medicine, Shanghai, 200136, China
| | - Liu Hanzhao
- Shanghai Pudong New Area Center for Disease Control and Prevention, Fudan University Pudong Institute of Preventive Medicine, Shanghai, 200136, China
| | - Xu Qiufang
- Shanghai Qingpu Area Center for Disease Control and Prevention, Shanghai, 201799, China
| | - Liu Jingyi
- Shanghai Pudong New Area Center for Disease Control and Prevention, Fudan University Pudong Institute of Preventive Medicine, Shanghai, 200136, China
| | - Cai Fengzhu
- Shanghai Pudong New Area Center for Disease Control and Prevention, Fudan University Pudong Institute of Preventive Medicine, Shanghai, 200136, China
| | - Xiao Shaotan
- Shanghai Pudong New Area Center for Disease Control and Prevention, Fudan University Pudong Institute of Preventive Medicine, Shanghai, 200136, China.
| | - He Gengsheng
- School of Public Health/Key Laboratory of Public Health Safety, Ministry of Education, Department of Nutrition and Food Science, Fudan University, Shanghai, 200032, China.
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Rikhotso MC, Ledwaba SE, Ngandu JPK, Mavumengwana V, Kinnear CJ, Warren R, Potgieter N, Traoré AN. Favourable outcomes in RR-TB patients using BPaL and other WHO-recommended second-line anti-TB drugs. Int J Tuberc Lung Dis 2023; 27:599-605. [PMID: 37491748 PMCID: PMC10365554 DOI: 10.5588/ijtld.22.0649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/25/2023] [Indexed: 07/27/2023] Open
Abstract
SETTING: According to reports in South Africa, treatment failure rates for rifampicin-resistant TB (RR-TB) are significant and below the WHO target of ≥70%. HIV infection and the use of highly active antiretroviral therapy (HAART) influence how patients receiving anti-TB drugs respond to therapy. In the treatment of RR-TB, more recent medications, including bedaquiline, pretomanid and linezolid (BPaL), have shown promising results.OBJECTIVE: To assess treatment outcomes in RR-TB patients using BPaL and other second-line anti-TB drugs as recommended by the WHO in the South African population.DESIGN: The databases Medline, PubMed, Google Scholar and Embase were searched for studies between 2015 and 2022, which investigated BPaL outcomes in South Africa.RESULTS: Of the 27,259 participants, 21% were on bedaquiline, 1% were taking pretomanid and 9% were taking linezolid as part of their background regimen. About 68% of the patients were HIV-positive, with 59% of them taking HAART.CONCLUSION: Overall, 66% of patients taking BPaL drugs as part of their background regimen had favourable treatment outcomes. Additionally, patients with RR-TB who were HIV-positive and taking HAART while receiving BPaL drugs as part of a background regimen had improved treatment outcomes.
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Affiliation(s)
- M C Rikhotso
- Department of Biochemistry and Microbiology, Faculty of Sciences, Engineering & Agriculture, University of Venda, Thohoyandou
| | - S E Ledwaba
- Department of Biochemistry and Microbiology, Faculty of Sciences, Engineering & Agriculture, University of Venda, Thohoyandou
| | - J-P K Ngandu
- Department of Biochemistry and Microbiology, Faculty of Sciences, Engineering & Agriculture, University of Venda, Thohoyandou
| | - V Mavumengwana
- Department of Science and Innovation - National Research FoundationCentre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South African Medical Research Council Genomics Centre, Cape Town, South Africa
| | - C J Kinnear
- Department of Science and Innovation - National Research FoundationCentre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South African Medical Research Council Genomics Centre, Cape Town, South Africa
| | - R Warren
- Department of Science and Innovation - National Research FoundationCentre of Excellence for Biomedical Tuberculosis Research, South African Medical Research Council Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South African Medical Research Council Genomics Centre, Cape Town, South Africa
| | - N Potgieter
- Department of Biochemistry and Microbiology, Faculty of Sciences, Engineering & Agriculture, University of Venda, Thohoyandou
| | - A N Traoré
- Department of Biochemistry and Microbiology, Faculty of Sciences, Engineering & Agriculture, University of Venda, Thohoyandou
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Chen L, Zhou W, Hu P, Zhou Z. A series of tuberculous cold abscesses at uncommon anatomic sites. Quant Imaging Med Surg 2023; 13:5393-5397. [PMID: 37581047 PMCID: PMC10423395 DOI: 10.21037/qims-22-743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 05/15/2023] [Indexed: 08/16/2023]
Affiliation(s)
- Lei Chen
- Department of Radiology, Minhang Branch, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Wenshen Zhou
- Department of Radiology, Luchun County People’s Hospital of Yunnan Province, Honghe, China
| | - Peian Hu
- Department of Radiology, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
| | - Zhengrong Zhou
- Department of Radiology, Minhang Branch, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Radiology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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Liu B, Li K, Li S, Zhao R, Zhang Q. The association between the CD4/CD8 ratio and surgical site infection risk among HIV-positive adults: insights from a China hospital. Front Immunol 2023; 14:1135725. [PMID: 37497209 PMCID: PMC10366603 DOI: 10.3389/fimmu.2023.1135725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 06/20/2023] [Indexed: 07/28/2023] Open
Abstract
Purpose It is well known that the CD4/CD8 ratio is a special immune-inflammation marker. We aimed to explore the relationship between the CD4/CD8 ratio and the risk of surgical site infections (SSI) among human immunodeficiency virus (HIV)-positive adults undergoing orthopedic surgery. Methods We collected and analyzed data from 216 HIV-positive patients diagnosed with fractures at the department of orthopedics, Beijing Ditan Hospital between 2011 and 2019. The demographic, surgical, and hematological data for all patients were collected in this retrospective cohort study. We explored the risk factors for SSI using univariate and multivariate logistic regression analysis. Then, the clinical correlation between the CD4 count, CD4/CD8 ratio, and SSI was studied using multivariate logistic regression models after adjusting for potential confounders. Furthermore, the association between the CD4/CD8 ratio and SSI was evaluated on a continuous scale with restricted cubic spline (RCS) curves based on logistic regression models. Results A total of 23 (10.65%) patients developed SSI during the perioperative period. Patients with hepatopathy (OR=6.10, 95%CI=1.46-28.9), HIV viral load (OR=8.68, 95%CI=1.42-70.2; OR=19.4, 95%CI=3.09-179), operation time (OR=7.84, 95%CI=1.35-77.9), and CD4 count (OR=0.05, 95%CI=0.01-0.23) were risk factors for SSI (P-value < 0.05). Our study demonstrated that a linear relationship between CD4 count and surgical site infection risk. In other words, patients with lower CD4 counts had a higher risk of developing SSI. Furthermore, the relationship between CD4/CD8 ratio and SSI risk was non-linear, inverse 'S' shaped. The risk of SSI increased substantially when the ratio was below 0.913; above 0.913, the risk of SSI was almost unchanged. And there is a 'threshold-saturation' effect between them. Conclusion Our research shows the CD4/CD8 ratio could be a useful predictor and immune-inflammation marker of the risk of SSI in HIV-positive fracture patients. These results, from a Chinese hospital, support the beneficial role of immune reconstitution in HIV-positive patients prior to orthopedic surgery.
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Rafiemanesh H, Shadloo B, Amin-Esmaeili M, Rahimi Y, Gholami J, Rahimi-Movaghar A. Prevalence of Tuberculosis among People Who Use Drugs in Iran: A Systematic Review and Meta-analysis. ADDICTION & HEALTH 2023; 15:219-227. [PMID: 38026719 PMCID: PMC10658100 DOI: 10.34172/ahj.2023.1399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 01/28/2023] [Indexed: 12/01/2023]
Abstract
Background Drug use, especially injecting drug use, is associated with a higher risk of tuberculosis (TB). This study aimed to systematically review the prevalence of TB among people who use drugs (PWUD) in Iran. Methods A systematic search was conducted in international and national databases. All studies that provided data on the prevalence of TB among PWUD based on screening tests and diagnosis from 1990 up to August 2019 were assessed. Meta-analysis was performed on the prevalence of active TB among people who inject drugs (PWID). Findings Overall, nine studies were included. The studies were carried out from 1994 to 2012 in seven out of the 31 provinces of Iran. Seven studies provided data on the prevalence of TB diagnosis among 1087 PWID. The pooled prevalence of TB diagnosis was 10.1% (95% CI: 4.5, 15.8) in studies carried out in hospitals and 0.54% (95% CI: 0.04, 1.04) in other settings. Conclusion The present review suggests an approximately 40 times higher prevalence of TB among PWID compared to the general population. However, most of the included studies were conducted on a subpopulation of drug users, and caution should be exercised when generalizing the findings.
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Affiliation(s)
- Hosein Rafiemanesh
- Non-communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
- Department of Epidemiology and Biostatistics, School of Public Health, Alborz University of Medical Sciences, Karaj, Iran
| | - Behrang Shadloo
- Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Amin-Esmaeili
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 21205, USA
| | - Yekta Rahimi
- Student Research Committee, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jaleh Gholami
- Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran
| | - Afarin Rahimi-Movaghar
- Iranian National Center for Addiction Studies (INCAS), Tehran University of Medical Sciences, Tehran, Iran
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Nguyen TT, Nguyen HT, Do HP, Ho CSH, Ho RCM. Characterizing the Development of Research Landscapes in Substance Use and HIV/AIDS During 1990 to 2021. Subst Abuse 2023; 17:11782218231177515. [PMID: 37304210 PMCID: PMC10251474 DOI: 10.1177/11782218231177515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 05/07/2023] [Indexed: 06/13/2023]
Abstract
Mitigating the impacts of Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) and substance use requires comprehensive and systematic thinking in designing interventions and developing policies. This study describes the growth of research publications from 1991 to 2021 in the Web of Science database and points out current research landscapes in the fields of HIV/AIDS and substance use. Latent Dirichlet Allocation was used for classifying 21 359 papers into corresponding topics. The most common topics were HIV transmission, HIV infection, quality of life and mental health of substance users, and the biomedical effect of substance use. Emerging research landscapes include vulnerabilities of people who inject drugs to HIV transmission and related health problems. This study found a lack of research on health services, interdisciplinary and inter-sectoral in combination with clinical evaluation and treatment services. Future investment and implementation of HIV/AIDS and substance use programs should focus on research of health services and clinical evaluation, especially context-specific interventions.
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Affiliation(s)
- Tham Thi Nguyen
- Institute for Global Health Innovations, Duy Tan University, Da Nang, Vietnam
- Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
| | - Hien Thu Nguyen
- Institute for Global Health Innovations, Duy Tan University, Da Nang, Vietnam
- Faculty of Medicine, Duy Tan University, Da Nang, Vietnam
| | - Huyen Phuc Do
- Institute of Health Economics and Technology, Hanoi, Vietnam
| | - Cyrus SH Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Roger CM Ho
- Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Institute for Health Innovation and Technology (iHealthtech), National University of Singapore, Singapore
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Jagga WM, Biccard B, Bailly J, Esmail A, Antel K, Opie J. Point of care ultrasound findings in critically ill SARS-COV2 patients in an HIV endemic, resourced constrained setting. Heliyon 2023; 9:e16519. [PMID: 37251448 PMCID: PMC10205134 DOI: 10.1016/j.heliyon.2023.e16519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/31/2023] Open
Abstract
Objectives To describe the incidence of venous thromboembolism (VTE) in mechanically ventilated COVID-19 patients in an HIV endemic, resourced constrained setting. To describe the incidence of VTE in relation to HIV status and anticoagulant therapy, and to evaluate VTE-associated cardio-respiratory changes. To establish the contribution of HIV, anticoagulation therapy and other risk factors to mortality. Design Prospective descriptive study. Setting Single-center tertiary teaching hospital. Participants One hundred and one consecutively admitted critically ill adult patients with COVID-19 acute respiratory distress syndrome. Interventions Point of care ultrasound (POCUS) assessment of the lower limbs and the cardio-respiratory system was performed on intensive care unit (ICU) admission and repeated if clinically indicated. Measurements and main results DVT was diagnosed by POCUS, whilst pulmonary embolism was diagnosed using a combination of clinical criteria and POCUS (echocardiography and chest wall ultrasound). VTE was diagnosed in 16/101 (16%) patients, despite 14/16 (88%) receiving prior therapeutic dosage of low molecular weight heparin. Clinically significant PE was diagnosed in 5/16 (31%) with 11/16 (69%) having DVT only. The majority of VTE patients, 12/16 (75%), demised 16/101 (16%) patients had HIV co-infection, and 4/16 (25%) with HIV had VTE. Valvular abnormalities were the most common cardiac abnormality with marked tricuspid regurgitation detected in 51/101 (51%). The absence of right atrial enlargement had a 93% negative predictive value for the absence of VTE. Univariate analysis did not demonstrate statistically significant individual risk factors for mortality. Conclusions Mechanically ventilated COVID- 19 patients at ICU admission had a low incidence of VTE (16%). Therapeutic dose anticoagulation did not reduce mortality compared to prophylactic dosage. In contrast to findings from other studies, no individual risk factor contributed significantly to mortality, likely due to small sample size. POCUS is an ideal screening tool to aid in the assessment of critically ill patients.
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Affiliation(s)
- Willem Marcelle Jagga
- Department of Anaesthesia and Perioperative Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
- Faculty of Health Sciences, Private Bag, Observatory, 7935, South Africa
| | - Bruce Biccard
- Department of Anaesthesia and Perioperative Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
- Faculty of Health Sciences, Private Bag, Observatory, 7935, South Africa
| | - Jenique Bailly
- Division of Haematology, Department of Pathology, University of Cape Town and National Health Laboratory Service, South Africa
| | - Ali Esmail
- University of Cape Town Lung Institute and Division of Pulmonology, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - Katherine Antel
- Division of Clinical Haematology, Department of Medicine, University of Cape Town, South Africa
| | - Jessica Opie
- Division of Haematology, Department of Pathology, University of Cape Town and National Health Laboratory Service, South Africa
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M'pele P, Seyi-Olajide JO, Elongo T, Lemvik J, Dovlo D, Ameh EA. From research to a political commitment to strengthen access to surgical, obstetric, and anesthesia care in Africa by 2030. Front Public Health 2023; 11:1168805. [PMID: 37261243 PMCID: PMC10228736 DOI: 10.3389/fpubh.2023.1168805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/03/2023] [Indexed: 06/02/2023] Open
Abstract
Objective This study aimed to engage African leaders and key stakeholders to commit themselves toward the strengthening of surgical, obstetric, and anesthesia care systems by 2030 in Africa. Methods From research to a political commitment, a baseline assessment was performed to foster the identification of the gaps in surgical care as a first step of an inclusive process. The preliminary findings were discussed during the International Symposium on Surgical, Obstetric, and Anesthesia Systems Strengthening by 2030 in Africa. The conclusions served to draft the Dakar Declaration and its Regional Action Plan 2022-2030 to improve access to surgical care by 2030 in Africa, endorsed by Heads of State. Results The International Symposium was composed of two meetings that gathered (i) 85 scientific experts and (ii) 28 ministers of health or representatives from 28 sub-Saharan African countries. The 28 African countries represent (i) 51% of the continent's total population, (ii) 68% of the 47 African countries of the WHO Africa Region, (iii) 58% of all African Union countries, and (vi) 79% (3,371) of the WHO Africa Region's total (4,271) health districts. The International Symposium and the Heads of State Summit successfully produced the Dakar Declaration on access to equitable, affordable, and quality Surgical, Obstetric, and Anesthesia Care by 2030 in Africa and its Regional Actions Plan 2022-2030 which prioritizes 12 urgent actions needed to be implemented, six strategic priorities, 16 key indicators, and an annual dashboard to monitor progress. Conclusion The Dakar Declaration and its Regional Action Plan 2022-2030 are a commitment to establish quality and sustainable surgical, obstetric, and anesthesia care in each African country within the ambitious framework of "The Africa we want" Agenda 2063.
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Affiliation(s)
- Pierre M'pele
- Scientific Secretariat of the International Symposium on Surgical, Obstetric, and Anesthesia Systems Strengthening by 2030 in Africa, Mercy Ships Africa Office, Cotonou, Benin
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Shri N, Bhattacharyya K, Dhamnetiya D, Singh M, Jha RP, Patel P. Long-term trends of HIV/AIDS incidence in India: an application of joinpoint and age-period-cohort analyses: a gendered perspective. Front Public Health 2023; 11:1093310. [PMID: 37261236 PMCID: PMC10227429 DOI: 10.3389/fpubh.2023.1093310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 04/06/2023] [Indexed: 06/02/2023] Open
Abstract
Background Monitoring the transmission patterns of human immunodeficiency virus (HIV) in a population is fundamental for identifying the key population and designing prevention interventions. In the present study, we aimed to estimate the gender disparities in HIV incidence and the age, period, and cohort effects on the incidence of HIV in India for identifying the predictors that might have led to changes in the last three decades. Data and methods This study utilizes data from the Global Burden of Disease Study for the period 1990-2019. The joinpoint regression analysis was employed to identify the magnitude of the changes in age-standardized incidence rates (ASIRs) of HIV. The average annual percentage changes in the incidence were computed, and the age-period-cohort analysis was performed. Results A decreasing trend in the overall estimates of age-standardized HIV incidence rates were observed in the period 1990-2019. The joinpoint regression analysis showed that the age-standardized incidence significantly declined from its peak in 1997 to 2019 (38.0 and 27.6 among males and females per 100,000 in 1997 to 5.4 and 4.6, respectively, in 2019). The APC was estimated to be 2.12 among males and 1.24 among females for the period 1990-2019. In recent years, although the gender gap in HIV incidence has reduced, females were observed to bear a proportionately higher burden of HIV incidence. Age effect showed a decline in HIV incidence by 91.1 and 70.1% among males and females aged between 15-19 years and 75-79 years. During the entire period from 1990-1994 to 2015-2019, the RR of HIV incidence decreased by 36.2 and 33.7% among males and females, respectively. Conclusion India is experiencing a decline in new HIV infections in recent years. However, the decline is steeper for males than for females. Findings highlight the necessity of providing older women and young women at risk with effective HIV prevention. This study emphasizes the need for large-scale HIV primary prevention efforts for teenage girls and young women.
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Affiliation(s)
- Neha Shri
- Department of Survey Research and Data Analytics, International Institute for Population Sciences, Mumbai, Maharashtra, India
| | | | - Deepak Dhamnetiya
- Scientist II (Epidemiology), Clinical Research Unit, All India Institute of Medical Sciences, New Delhi, India
| | - Mayank Singh
- Department of Fertility and Social Demography, International Institute for Population Sciences, Mumbai, India
| | - Ravi Prakash Jha
- Department of Community Medicine Dr. Baba Saheb Ambedkar Medical College and Hospital, New Delhi, India
| | - Priyanka Patel
- Department of Family & Generations, International Institute for Population Sciences, Mumbai, India
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Lei Y, Wang J, Wang Y, Xu C. Geographical evolutionary pathway of global tuberculosis incidence trends. BMC Public Health 2023; 23:755. [PMID: 37095497 PMCID: PMC10123998 DOI: 10.1186/s12889-023-15553-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 03/28/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUNDS Tuberculosis (TB) remains a serious public health and human development problem, especially in developing countries. Despite the effectiveness of directly observed therapy, short course programs in reducing transmission and progression of TB, poverty reduction and socioeconomic development remain crucial factors in decreasing TB incidence. However, the geographical pathway on the planet is not yet clear. OBJECTIVES This study was to reconstruct the geographical evolutionary process of TB in 173 countries and territories from 2010 to 2019 to analyze the socioeconomic determinants that impact the global TB epidemic. In addition, the TB incidence in 2030 was predicted. METHODS This study analyses TB incidence data from 173 countries and territories between 2010 and 2019. The Geotree model would be used to reconstruct the geographical evolutionary process of TB, which provides a simplified schema for geo-visualizing the trajectories of TB incidence and their socioeconomic drivers. Additionally, to estimate the future TB incidence in 2030, a multilevel model was utilized in conjunction with the hierarchical nature of the Geotree based on a stratified heterogeneity analysis. RESULTS Global TB incidence was found to be associated with the country type and development stages. Between 2010 and 2019, the average TB incidence rate in 173 countries and territories was -27.48%, with marked spatially stratified heterogeneity by country type and development stage. Low-income and lower-middle-income countries were most vulnerable to TB. Upper-middle-income countries experienced a faster decline in TB incidence than high-income countries, and TB incidence generally decreased as the development stage increased, except for the lower-middle development stage in 2019.The highest average rate of decline in TB incidence was observed in the upper-middle development stage of high-income countries, with a reduction of 45.24%. Meanwhile, 37 high-income countries in the high development stage demonstrated an average rate of change of -13.93%. Socioeconomic determinants, including gross domestic product per capita, urbanization rate, and sociodemographic index, were found to inhibit TB incidence. Based on current trends, the predicted average global TB incidence in 2030 is 91.581 per 100,000 population. CONCLUSIONS The trajectories of the global TB incidence have been reconstructed to formulate targeted public health responses. To eliminate TB, countries at similar development stage can draw on the experiences of countries at higher development stages that are tailored to their unique characteristics. By learning from successful TB control strategies, countries can take strategic steps toward eradicating TB and improving public health outcomes.
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Affiliation(s)
- Yanhui Lei
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jinfeng Wang
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yang Wang
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chengdong Xu
- State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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23
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Ibba R, Corona P, Nonne F, Caria P, Serreli G, Palmas V, Riu F, Sestito S, Nieddu M, Loddo R, Sanna G, Piras S, Carta A. Design, Synthesis, and Antiviral Activities of New Benzotriazole-Based Derivatives. Pharmaceuticals (Basel) 2023; 16:ph16030429. [PMID: 36986528 PMCID: PMC10054465 DOI: 10.3390/ph16030429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/16/2023] Open
Abstract
Several human diseases are caused by enteroviruses and are currently clinically untreatable, pushing the research to identify new antivirals. A notable number of benzo[d][1,2,3]triazol-1(2)-yl derivatives were designed, synthesized, and in vitro evaluated for cytotoxicity and antiviral activity against a wide spectrum of RNA positive- and negative-sense viruses. Five of them (11b, 18e, 41a, 43a, 99b) emerged for their selective antiviral activity against Coxsackievirus B5, a human enteroviruses member among the Picornaviridae family. The EC50 values ranged between 6 and 18.5 μM. Among all derivatives, compounds 18e and 43a were interestingly active against CVB5 and were selected to better define the safety profile on cell monolayers by transepithelial resistance test (TEER). Results indicated compound 18e as the hit compound to investigate the potential mechanism of action by apoptosis assay, virucidal activity test, and the time of addition assay. CVB5 is known to be cytotoxic by inducing apoptosis in infected cells; in this study, compound 18e was proved to protect cells from viral infection. Notably, cells were mostly protected when pre-treated with derivative 18e, which had, however, no virucidal activity. From the performed biological assays, compound 18e turned out to be non-cytotoxic as well as cell protective against CVB5 infection, with a mechanism of action ascribable to an interaction on the early phase of infection, by hijacking the viral attachment process.
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Affiliation(s)
- Roberta Ibba
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni, 23/A, 07100 Sassari, Italy; (R.I.); (P.C.); (F.R.); (M.N.)
| | - Paola Corona
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni, 23/A, 07100 Sassari, Italy; (R.I.); (P.C.); (F.R.); (M.N.)
| | - Francesca Nonne
- GSK Vaccine Institute for Global Health GSK, Via Fiorentina, 1, 53100 Siena, Italy;
| | - Paola Caria
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (P.C.); (G.S.); (V.P.); (R.L.)
| | - Gabriele Serreli
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (P.C.); (G.S.); (V.P.); (R.L.)
| | - Vanessa Palmas
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (P.C.); (G.S.); (V.P.); (R.L.)
| | - Federico Riu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni, 23/A, 07100 Sassari, Italy; (R.I.); (P.C.); (F.R.); (M.N.)
- Department of Chemistry, Biomedicinskt Centrum, BMC, Uppsala University, Box 576, 75123 Uppsala, Sweden
| | - Simona Sestito
- Department of Chemical, Physical, Mathematical and Natural Sciences, University of Sassari, Via Vienna 2, 07100 Sassari, Italy;
| | - Maria Nieddu
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni, 23/A, 07100 Sassari, Italy; (R.I.); (P.C.); (F.R.); (M.N.)
| | - Roberta Loddo
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (P.C.); (G.S.); (V.P.); (R.L.)
| | - Giuseppina Sanna
- Department of Biomedical Sciences, Section of Microbiology and Virology, University of Cagliari, Cittadella Universitaria, 09042 Monserrato, Italy; (P.C.); (G.S.); (V.P.); (R.L.)
- Correspondence: (G.S.); (S.P.)
| | - Sandra Piras
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni, 23/A, 07100 Sassari, Italy; (R.I.); (P.C.); (F.R.); (M.N.)
- Correspondence: (G.S.); (S.P.)
| | - Antonio Carta
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Via Muroni, 23/A, 07100 Sassari, Italy; (R.I.); (P.C.); (F.R.); (M.N.)
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24
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Hollowell T, Sewe MO, Rocklöv J, Obor D, Odhiambo F, Ahlm C. Public health determinants of child malaria mortality: a surveillance study within Siaya County, Western Kenya. Malar J 2023; 22:65. [PMID: 36823600 PMCID: PMC9948786 DOI: 10.1186/s12936-023-04502-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 02/18/2023] [Indexed: 02/25/2023] Open
Abstract
BACKGROUND Malaria deaths among children have been declining worldwide during the last two decades. Despite preventive, epidemiologic and therapy-development work, mortality rate decline has stagnated in western Kenya resulting in persistently high child malaria morbidity and mortality. The aim of this study was to identify public health determinants influencing the high burden of malaria deaths among children in this region. METHODS A total of 221,929 children, 111,488 females and 110,441 males, under the age of 5 years were enrolled in the Kenya Medical Research Institute/Center for Disease Control Health and Demographic Surveillance System (KEMRI/CDC HDSS) study area in Siaya County during the period 2003-2013. Cause of death was determined by use of verbal autopsy. Age-specific mortality rates were computed, and cox proportional hazard regression was used to model time to malaria death controlling for the socio-demographic factors. A variety of demographic, social and epidemiologic factors were examined. RESULTS In total 8,696 (3.9%) children died during the study period. Malaria was the most prevalent cause of death and constituted 33.2% of all causes of death, followed by acute respiratory infections (26.7%) and HIV/AIDS related deaths (18.6%). There was a marked decrease in overall mortality rate from 2003 to 2013, except for a spike in the rates in 2008. The hazard of death differed between age groups with the youngest having the highest hazard of death HR 6.07 (95% CI 5.10-7.22). Overall, the risk attenuated with age and mortality risks were limited beyond 4 years of age. Longer distance to healthcare HR of 1.44 (95% CI 1.29-1.60), l ow maternal education HR 3.91 (95% CI 1.86-8.22), and low socioeconomic status HR 1.44 (95% CI 1.26-1.64) were all significantly associated with increased hazard of malaria death among children. CONCLUSIONS While child mortality due to malaria in the study area in Western Kenya, has been decreasing, a final step toward significant risk reduction is yet to be accomplished. This study highlights residual proximal determinants of risk which can further inform preventive actions.
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Affiliation(s)
- Thomas Hollowell
- Department of Clinical Microbiology, Infection and Immunology, Umeå University, Umeå, Sweden. .,Department of Infectious Diseases, Karlstad Central Hospital, Region Värmland, Karlstad, Sweden.
| | - Maquins Odhiambo Sewe
- grid.33058.3d0000 0001 0155 5938KEMRI Centre for Global Health Research, Kisumu, Kenya ,grid.12650.300000 0001 1034 3451Department of Public Health and Clinical Medicine, Section of Sustainable Health, Umeå University, Umeå, Sweden
| | - Joacim Rocklöv
- grid.12650.300000 0001 1034 3451Department of Public Health and Clinical Medicine, Section of Sustainable Health, Umeå University, Umeå, Sweden ,grid.7700.00000 0001 2190 4373Heidelberg Institute of Global Health and Interdisciplinary Center for Scientific Computing, University of Heidelberg, Heidelberg, Germany
| | - David Obor
- grid.33058.3d0000 0001 0155 5938KEMRI Centre for Global Health Research, Kisumu, Kenya
| | - Frank Odhiambo
- grid.33058.3d0000 0001 0155 5938KEMRI Centre for Global Health Research, Kisumu, Kenya
| | - Clas Ahlm
- grid.12650.300000 0001 1034 3451Department of Clinical Microbiology, Infection and Immunology, Umeå University, Umeå, Sweden
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25
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Abdalal SA, Yukich J, Andrinopoulos K, Alghanmi M, Wakid MH, Zawawi A, Harakeh S, Altwaim SA, Gattan H, Baakdah F, Gaddoury MA, Niyazi HA, Mokhtar JA, Alruhaili MH, Alsaady I, Alhabbab R, Alfaleh M, Hashem AM, Alahmadey ZZ, Keating J. Livelihood activities, human mobility, and risk of malaria infection in elimination settings: a case-control study. Malar J 2023; 22:53. [PMID: 36782234 PMCID: PMC9926773 DOI: 10.1186/s12936-023-04470-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 01/24/2023] [Indexed: 02/15/2023] Open
Abstract
BACKGROUND Livelihood activities and human movements participate in the epidemiology of vector-borne diseases and influence malaria risk in elimination settings. In Saudi Arabia, where malaria transmission intensity varies geographically, it is vital to understand the components driving transmission within specific areas. In addition, shared social, behavioural, and occupational characteristics within communities may provoke the risk of malaria infection. This study aims to understand the relationship between human mobility, livelihood activities, and the risk of malaria infection in the border region of Jazan to facilitate further strategic malaria interventions. In addition, the study will complement and reinforce the existing efforts to eliminate malaria on the Saudi and Yemen border by providing a deeper understanding of human movement and livelihood activities. METHODS An unmatched case-control study was conducted. A total of 261 participants were recruited for the study, including 81 cases of confirmed malaria through rapid diagnostic tests (RDTs) and microscopy and 180 controls in the Baish Governorate in Jazan Provinces, Saudi Arabia. Individuals who received malaria tests were interviewed regarding their livelihood activities and recent movement (travel history). A questionnaire was administered, and the data was captured electronically. STATA software version 16 was used to analyse the data. Bivariate and multivariate analyses were conducted to determine if engaging in agricultural activities such as farming and animal husbandry, recent travel history outside of the home village within the last 30 days and participating in spiritual gatherings were related to malaria infection status. RESULTS A logistical regression model was used to investigate components associated with malaria infection. After adjusting several confounding factors, individuals who reported travelling away from their home village in the last 30 days OR 11.5 (95% CI 4.43-29.9), and those who attended a seasonal night spiritual gathering OR 3.04 (95% CI 1.10-8.42), involved in animal husbandry OR 2.52 (95% CI 1.10-5.82), and identified as male OR 4.57 (95% CI 1.43-14.7), were more likely to test positive for malaria infection. CONCLUSION Human movement and livelihood activities, especially at nighttime, should be considered malaria risk factors in malaria elimination settings, mainly when the targeted area is limited to a confined borderland area.
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Affiliation(s)
- Shaymaa A. Abdalal
- grid.412125.10000 0001 0619 1117Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Joshua Yukich
- grid.265219.b0000 0001 2217 8588School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA USA
| | - Katherine Andrinopoulos
- grid.265219.b0000 0001 2217 8588School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA USA
| | - Maimonah Alghanmi
- grid.412125.10000 0001 0619 1117Vaccines and Immunotherapy Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Majed H. Wakid
- grid.412125.10000 0001 0619 1117Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ayat Zawawi
- grid.412125.10000 0001 0619 1117Vaccines and Immunotherapy Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Steve Harakeh
- grid.412125.10000 0001 0619 1117King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sarah A. Altwaim
- grid.412125.10000 0001 0619 1117Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hattan Gattan
- grid.412125.10000 0001 0619 1117Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fadi Baakdah
- grid.412125.10000 0001 0619 1117Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mahmoud A. Gaddoury
- grid.412125.10000 0001 0619 1117Department of Community Medicine, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hatoon A. Niyazi
- grid.412125.10000 0001 0619 1117Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jawahir A. Mokhtar
- grid.412125.10000 0001 0619 1117Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohammed H. Alruhaili
- grid.412125.10000 0001 0619 1117Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Isra Alsaady
- grid.412125.10000 0001 0619 1117Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Special Infectious Agents Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rowa Alhabbab
- grid.412125.10000 0001 0619 1117Vaccines and Immunotherapy Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohamed Alfaleh
- grid.412125.10000 0001 0619 1117Vaccines and Immunotherapy Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589 Saudi Arabia
| | - Anwar M. Hashem
- grid.412125.10000 0001 0619 1117Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia ,grid.412125.10000 0001 0619 1117Vaccines and Immunotherapy Unit, King Fahd Medical Research Centre, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Ziab Zakey Alahmadey
- grid.415696.90000 0004 0573 9824Microbiology and Serology Departments, Al-Ansar Hospital, Ministry of Health, Medina, Saudi Arabia
| | - Joseph Keating
- grid.265219.b0000 0001 2217 8588School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA USA
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Human Immunodeficiency Virus and Uveitis. Viruses 2023; 15:v15020444. [PMID: 36851658 PMCID: PMC9962278 DOI: 10.3390/v15020444] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/31/2023] [Accepted: 02/03/2023] [Indexed: 02/09/2023] Open
Abstract
Uveitis is one of the most common ocular complications in people living with the Human immunodeficiency virus (HIV) and can be classified into HIV-induced uveitis, co-infection related uveitis, immune recovery uveitis, and drug-induced uveitis. The introduction of antiretroviral therapy has considerably changed the incidence, diagnosis, and treatment of different types of HIV-related uveitis. Furthermore, the specific immune condition of patients infected with HIV makes diagnosing HIV-related uveitis difficult. Recent studies have focused on the growing prevalence of syphilis/tuberculosis co-infection in uveitis. Simultaneously, more studies have demonstrated that HIV can directly contribute to the incidence of uveitis. However, the detailed mechanism has not been studied. Immune recovery uveitis is diagnosed by exclusion, and recent studies have addressed the role of biomarkers in its diagnosis. This review highlights recent updates on HIV-related uveitis. Furthermore, it aims to draw the attention of infectious disease physicians and ophthalmologists to the ocular health of patients infected with HIV.
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Abdalal SA, Yukich J, Andrinoplous K, Harakeh S, Altwaim SA, Gattan H, Carter B, Shammaky M, Niyazi HA, Alruhaili MH, Keating J. An insight to better understanding cross border malaria in Saudi Arabia. Malar J 2023; 22:37. [PMID: 36732819 PMCID: PMC9893606 DOI: 10.1186/s12936-023-04467-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 01/23/2023] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Border malaria is a major obstacle for the malaria elimination in Saudi Arabia. Today, the southern border of Saudi Arabia is a region where malaria cases are resurging, and malaria control is dwindling mainly due to the humanitarian crisis and the conflict in Yemen. This study analyses the current border malaria epidemiology along the southern border of Saudi Arabia from 2015 to 2018. METHODS All reported cases maintained by the malaria elimination centres in Aledabi and Baish, Jazan Province, Saudi Arabia, from 2015 to 2018 were analysed to examine the epidemiological changes over time. Pearson's Chi-Square test of differences was utilized to assess differences between the characteristics of imported and local causes and between border cases. A logistic regression model was used to predict imported status was related to living along side of the border area. RESULTS A total of 3210 malaria cases were reported in Baish and Aledabi malaria centres between 2015 and 2018, of which 170 were classified as local cases and 3040 were classified as imported cases. Reported malaria cases were mainly among males, within the imported cases 61.5% (1868/3039) were residents of the border areas. CONCLUSIONS Given the complexity of cross-border malaria, creating a malaria buffer zone that covers a certain margin from both sides of the border would allow for a joint force, cross-border malaria elimination programme. To initiate a malaria elimination activity and cases reported as belonging to this zone, rather than being pushed from one country to the other, would allow malaria elimination staff to work collaboratively with local borderland residents and other stakeholders to come up with innovative solutions to combat malaria and reach malaria-free borders.
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Affiliation(s)
- Shaymaa A. Abdalal
- grid.412126.20000 0004 0607 9688Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University and King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Joshua Yukich
- grid.265219.b0000 0001 2217 8588Tulane University School of Public Health and Tropical Medicine, New Orleans, LA USA
| | - Katherine Andrinoplous
- grid.265219.b0000 0001 2217 8588Tulane University School of Public Health and Tropical Medicine, New Orleans, LA USA
| | - Steve Harakeh
- Saudi Arabia Ministry of Health, Jazan, Saudi Arabia
| | - Sarah A. Altwaim
- grid.412126.20000 0004 0607 9688Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University and King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Hattan Gattan
- grid.412125.10000 0001 0619 1117Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Brendan Carter
- grid.265219.b0000 0001 2217 8588Tulane University School of Public Health and Tropical Medicine, New Orleans, LA USA
| | | | - Hatoon A. Niyazi
- grid.412126.20000 0004 0607 9688Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University and King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Mohammed H. Alruhaili
- grid.412126.20000 0004 0607 9688Department of Medical Microbiology and Parasitology, Faculty of Medicine, King Abdulaziz University and King Abdulaziz University Hospital, Jeddah, Saudi Arabia
| | - Joseph Keating
- grid.265219.b0000 0001 2217 8588Tulane University School of Public Health and Tropical Medicine, New Orleans, LA USA
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Mondal S, Tseng CJ, Tan JJY, Lin DY, Lin HY, Weng JH, Lin CH, Mong KKT. Tunable Strategy for the Asymmetric Synthesis of Sulfoglycolipids from Mycobacterium tuberculosis To Elucidate the Structure and Immunomodulatory Property Relationships. Angew Chem Int Ed Engl 2023; 62:e202212514. [PMID: 36349422 DOI: 10.1002/anie.202212514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Indexed: 11/11/2022]
Abstract
We developed a versatile asymmetric strategy to synthesize different classes of sulfoglycolipids (SGLs) from Mycobacterium tuberculosis. The strategy features the use of asymmetrically protected trehaloses, which were acquired from the glycosylation of TMS α-glucosyl acceptors with benzylidene-protected thioglucosyl donors. The positions of the protecting groups at the donors and acceptors can be fine-tuned to obtain different protecting-group patterns, which is crucial for regioselective acylation and sulfation. In addition, a chemoenzymatic strategy was established to prepare the polymethylated fatty acid building blocks. The strategy employs inexpensive lipase as a desymmetrization agent in the preparation of the starting substrate and readily available chiral oxazolidinone as a chirality-controlling agent in the construction of the polymethylated fatty acids. A subsequent investigation on the immunomodulatory properties of each class of SGLs showed how the structures of SGLs impact the host innate immunity response.
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Affiliation(s)
- Soumik Mondal
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Chieh-Jen Tseng
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Janet Jia-Yin Tan
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Ding-Yuan Lin
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
| | - Hsien-Ya Lin
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Jui-Hsia Weng
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan
| | - Chun-Hung Lin
- Institute of Biological Chemistry, Academia Sinica, No.128, Academia Road Section2, Nan-Kang, Taipei, 11529, Taiwan.,Graduate Institute of Biotechnology and Biotechnology Center, National Chung-Hsing University, Taichung, 40227, Taiwan.,Department of Chemistry and Institute of Biochemical Sciences, National Taiwan University, Taipei, 10617, Taiwan
| | - Kwok-Kong Tony Mong
- Applied Chemistry Department, National Yang Ming Chiao Tung University (Previously National Chiao Tung University), 1001, University Road, Hsinchu City, Taiwan, R. O. C
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29
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Tuberculosis burden in India and its control from 1990 to 2019: Evidence from global burden of disease study 2019. Indian J Tuberc 2023; 70:87-98. [PMID: 36740324 DOI: 10.1016/j.ijtb.2022.03.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 09/04/2021] [Accepted: 03/09/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Tuberculosis is still a major public health problem in India. This study aims to assess trends in the burden of tuberculosis from 1990 to 2019 for tracking success of tuberculosis control programme in India. METHODS In this study, the 2019 global burden of disease study data were used to measure the incidence, prevalence, mortality, and disability-adjusted life years lost (DALY)rates of Tuberculosis during 1990-2019 for India and its states. Age and gender-specific rates were also analyzed for India. All rates were age-standardized and 95% uncertainty intervals (UIs) were computed. RESULT Overall incidence, prevalence, death and DALY of TB decreased in India from 1990 to 2019. Tuberculosis morbidity and mortality was higher in males as compared to females. Incidence of TB was low in children up to 14 years of age. Prevalence of TB was higher in females as compared to males till 29 years of age, whereas higher prevalence was reported in males as compared to females in adults aged 30 years and more. Death rate of TB was low in children and young adults up to 29 years of age. CONCLUSION This study shows that overall incidence, prevalence, death and DALY of tuberculosis decreased from 1990 to 2019 in India. The burden of TB was higher among males as compared to females during study period. TB affects all the age groups but deaths were higher in older age groups.
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Andom AT, Gilbert HN, Ndayizigiye M, Mukherjee JS, Lively CT, Nthunya J, Marole TA, Ratsiu M, Smith Fawzi MC, Yuen CM. Understanding barriers to tuberculosis diagnosis and treatment completion in a low-resource setting: A mixed-methods study in the Kingdom of Lesotho. PLoS One 2023; 18:e0285774. [PMID: 37167298 PMCID: PMC10174523 DOI: 10.1371/journal.pone.0285774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 04/28/2023] [Indexed: 05/13/2023] Open
Abstract
BACKGROUND Lesotho is one of the 30 countries with the highest tuberculosis incidence rates in the world, estimated at 650 per 100,000 population. Tuberculosis case detection is extremely low, particularly with the rapid spread of COVID-19, dropping from an estimated 51% in 2020 to 33% in 2021. The aim of this study is to understand the barriers to tuberculosis diagnosis and treatment completion. METHODS We used a convergent mixed methods study design. We collected data on the number of clients reporting symptoms upon tuberculosis screening, their sputum test results, the number of clients diagnosed, and the number of clients who started treatment from one district hospital and one health center in Berea district, Lesotho. We conducted in-depth interviews and focus group discussions with 53 health workers and patients. We used a content analysis approach to analyze qualitative data and integrated quantitative and qualitative findings in a joint display. FINDINGS During March-August, 2019, 218 clients at the hospital and 292 clients at the health center reported tuberculosis symptoms. The full diagnostic testing process was completed for 66% of clients at the hospital and 68% at the health center. Among clients who initiated tuberculosis treatment, 68% (61/90) at the hospital and 74% (32/43) at the health center completed treatment. The main barriers to testing and treatment completion were challenges at sample collection, lack of decentralized diagnostic services, and socioeconomic factors such as food insecurity and high patient movement to search for jobs. CONCLUSIONS Tuberculosis diagnosis could be improved through the effective decentralization of laboratory services at the health facility level, and treatment completion could be improved by providing food and other forms of social support to patients.
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Affiliation(s)
- Afom T Andom
- Partners In Health-Lesotho, Maseru, Lesotho
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, United States of America
| | - Hannah N Gilbert
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, United States of America
| | | | - Joia S Mukherjee
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, United States of America
- Division of Global Health Equity, Brigham and Women's Hospital, Boston, MA, United States of America
- Partners In Health, Boston, MA, United States of America
| | - Christina Thompson Lively
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, United States of America
| | | | | | | | - Mary C Smith Fawzi
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, United States of America
| | - Courtney M Yuen
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA, United States of America
- Division of Global Health Equity, Brigham and Women's Hospital, Boston, MA, United States of America
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Moradzadeh R, Navidi I, Zamanian M. Validity and Reliability of the Human Immunodeficiency Virus-Related Stigma Questionnaire in Persian. J Int Assoc Provid AIDS Care 2023; 22:23259582231189094. [PMID: 37525568 PMCID: PMC10395164 DOI: 10.1177/23259582231189094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 06/12/2023] [Accepted: 06/30/2023] [Indexed: 08/02/2023] Open
Abstract
Background: It was aimed to adapt a 12-item questionnaire into Persian among people living with human immunodeficiency virus (PLHIV) in Markazi province. Material and Methods: Content validity was evaluated based on the opinions of the relevant experts, and by calculating the scale-level content validity index (S-CVI) and the item-level content validity index (I-CVI). Reliability was assessed via test-retest, intraclass correlation coefficient (ICC), and Cronbach's alpha. Results: The obtained scores on clarity and relevancy (I-CVI) ranged from 0.9 to 1. The S-CVI also had an acceptable validity of 0.99. The Cronbach's alpha index of the whole questionnaire was 0.84 and ranged from 0.69 to 0.82 for subscales. The ICC in test-retest for all questionnaires was 0.88 and for subscales ranged from 0.77 to 0.88. Conclusion: The Persian version of the 12-item human immunodeficiency virus-related stigma questionnaire was found to be, in addition to being short and comprehensive, acceptable reliability and high validity to use in order to determine the stigma related to Persian-speaker PLHIV.
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Affiliation(s)
- Rahmatollah Moradzadeh
- Department of Epidemiology, School of Health, Arak University of Medical Sciences, Arak, Iran
| | - Iman Navidi
- Arak University of Medical Sciences, Arak, Iran
| | - Maryam Zamanian
- Department of Epidemiology, School of Health, Arak University of Medical Sciences, Arak, Iran
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Chen Q, Yu S, Rui J, Guo Y, Yang S, Abudurusuli G, Yang Z, Liu C, Luo L, Wang M, Lei Z, Zhao Q, Gavotte L, Niu Y, Frutos R, Chen T. Transmissibility of tuberculosis among students and non-students: an occupational-specific mathematical modelling. Infect Dis Poverty 2022; 11:117. [PMID: 36461098 PMCID: PMC9716537 DOI: 10.1186/s40249-022-01046-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 11/17/2022] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Recently, despite the steady decline in the tuberculosis (TB) epidemic globally, school TB outbreaks have been frequently reported in China. This study aimed to quantify the transmissibility of Mycobacterium tuberculosis (MTB) among students and non-students using a mathematical model to determine characteristics of TB transmission. METHODS We constructed a dataset of reported TB cases from four regions (Jilin Province, Xiamen City, Chuxiong Prefecture, and Wuhan City) in China from 2005 to 2019. We classified the population and the reported cases under student and non-student groups, and developed two mathematical models [nonseasonal model (Model A) and seasonal model (Model B)] based on the natural history and transmission features of TB. The effective reproduction number (Reff) of TB between groups were calculated using the collected data. RESULTS During the study period, data on 456,423 TB cases were collected from four regions: students accounted for 6.1% of cases. The goodness-of-fit analysis showed that Model A had a better fitting effect (P < 0.001). The average Reff of TB estimated from Model A was 1.68 [interquartile range (IQR): 1.20-1.96] in Chuxiong Prefecture, 1.67 (IQR: 1.40-1.93) in Xiamen City, 1.75 (IQR: 1.37-2.02) in Jilin Province, and 1.79 (IQR: 1.56-2.02) in Wuhan City. The average Reff of TB in the non-student population was 23.30 times (1.65/0.07) higher than that in the student population. CONCLUSIONS The transmissibility of MTB remains high in the non-student population of the areas studied, which is still dominant in the spread of TB. TB transmissibility from the non-student-to-student-population had a strong influence on students. Specific interventions, such as TB screening, should be applied rigorously to control and to prevent TB transmission among students.
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Affiliation(s)
- Qiuping Chen
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China ,grid.8183.20000 0001 2153 9871CIRAD, URM 17, Intertryp, Montpellier, France ,grid.121334.60000 0001 2097 0141Université de Montpellier, Montpellier, France
| | - Shanshan Yu
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Jia Rui
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China ,grid.8183.20000 0001 2153 9871CIRAD, URM 17, Intertryp, Montpellier, France ,grid.121334.60000 0001 2097 0141Université de Montpellier, Montpellier, France
| | - Yichao Guo
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Shiting Yang
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Guzainuer Abudurusuli
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Zimei Yang
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Chan Liu
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Li Luo
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Mingzhai Wang
- Xiamen Center for Disease Control and Prevention, Xiamen, Fujian People’s Republic of China
| | - Zhao Lei
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
| | - Qinglong Zhao
- Jilin Provincial Center for Disease Control and Prevention, Changchun, Jilin People’s Republic of China
| | - Laurent Gavotte
- grid.121334.60000 0001 2097 0141Espace-Dev, Université de Montpellier, Montpellier, France
| | - Yan Niu
- grid.198530.60000 0000 8803 2373Chinese Center for Disease Control and Prevention, 155 Changbai Road, Changping District, Beijing, China
| | - Roger Frutos
- grid.8183.20000 0001 2153 9871CIRAD, URM 17, Intertryp, Montpellier, France
| | - Tianmu Chen
- grid.12955.3a0000 0001 2264 7233State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, Fujian People’s Republic of China
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Akoolo L, Rocha SC, Parveen N. Protozoan co-infections and parasite influence on the efficacy of vaccines against bacterial and viral pathogens. Front Microbiol 2022; 13:1020029. [PMID: 36504775 PMCID: PMC9732444 DOI: 10.3389/fmicb.2022.1020029] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 11/07/2022] [Indexed: 11/26/2022] Open
Abstract
A wide range of protozoan pathogens either transmitted by vectors (Plasmodium, Babesia, Leishmania and Trypanosoma), by contaminated food or water (Entamoeba and Giardia), or by sexual contact (Trichomonas) invade various organs in the body and cause prominent human diseases, such as malaria, babesiosis, leishmaniasis, trypanosomiasis, diarrhea, and trichomoniasis. Humans are frequently exposed to multiple pathogens simultaneously, or sequentially in the high-incidence regions to result in co-infections. Consequently, synergistic or antagonistic pathogenic effects could occur between microbes that also influences overall host responses and severity of diseases. The co-infecting organisms can also follow independent trajectory. In either case, co-infections change host and pathogen metabolic microenvironments, compromise the host immune status, and affect microbial pathogenicity to influence tissue colonization. Immunomodulation by protozoa often adversely affects cellular and humoral immune responses against co-infecting bacterial pathogens and promotes bacterial persistence, and result in more severe disease symptoms. Although co-infections by protozoa and viruses also occur in humans, extensive studies are not yet conducted probably because of limited animal model systems available that can be used for both groups of pathogens. Immunosuppressive effects of protozoan infections can also attenuate vaccines efficacy, weaken immunological memory development, and thus attenuate protection against co-infecting pathogens. Due to increasing occurrence of parasitic infections, roles of acute to chronic protozoan infection on immunological changes need extensive investigations to improve understanding of the mechanistic details of specific immune responses alteration. In fact, this phenomenon should be seriously considered as one cause of breakthrough infections after vaccination against both bacterial and viral pathogens, and for the emergence of drug-resistant bacterial strains. Such studies would facilitate development and implementation of effective vaccination and treatment regimens to prevent or significantly reduce breakthrough infections.
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Affiliation(s)
- Lavoisier Akoolo
- Biorepository and Tissue Research Facility, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Sandra C. Rocha
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School, Newark, NJ, United States
| | - Nikhat Parveen
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School, Newark, NJ, United States,*Correspondence: Nikhat Parveen,
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Li C, Wang S, Yu H, Wang J, Deng J, Wang H, Hua C, Zhuo Z, Chen L, Hao J, Gao W, Zhang H, Zhang T, Xu H, Wang C. Research of childhood tuberculosis in suspected populations by molecular methods: A multicenter study in China. Front Cell Infect Microbiol 2022; 12:1018699. [PMID: 36339333 PMCID: PMC9626968 DOI: 10.3389/fcimb.2022.1018699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 09/27/2022] [Indexed: 10/16/2023] Open
Abstract
The research of childhood tuberculosis is inadequate in china. The cross-priming amplification (CPA) of specific DNA in clinical samples is increasingly adopted for the diagnosis of childhood tuberculosis. In this study, a multicenter research was performed to investigate the incidence and characteristics of childhood tuberculosis in suspected populations mainly by CPA method. 851 children suspected of tuberculosis were enrolled in seven centers across China. All samples were tested by a CPA method and 159 subjects were tested by Xpert MTB/RIF and liquid culture method in parallel to assess the reliability of the CPA method. A positive result in any one of the three methods provided a definitive diagnosis of Mycobacterium tuberculosis complex (MTBC) infection. The MTBC-positive rate was 9.5% (81/851) by the combined methods; 93.8% of the cases were detected by CPA technology (76/81). The rate of pulmonary infection was significantly higher than that of extrapulmonary infection (7.1%, 60/851 vs 2.5%, 21/851; P < 0.001). Scrofula was the predominant type of extrapulmonary tuberculosis. The MTBC positive rates in 12-18-year-old group (middle school), was 28.4% (23/81), higher than in those under-six-year-old (preschool; 39/525) and the 6~11-year-old (primary school; 18/235) groups combined (P < 0.001). The MTBC positive rate in patients with a clear history of tuberculosis exposure was significantly higher than in cases in which there was no history of tuberculosis contact(35.3%, 18/51 vs 7.8%, 61/782; P < 0.001). In conclusion, this multicenter investigation showed that pulmonary tuberculosis and extrapulmonary tuberculosis are not uncommon in children in China, with teenagers being particularly susceptible to infection. The incidence of pulmonary tuberculosis in children is higher than that of extrapulmonary tuberculosis. History of exposure to tuberculosis is a high risk factor for childhood tuberculosis.
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Affiliation(s)
- Chunling Li
- Clinical Microbiology Laboratory, Children’s Hospital of Fudan University, Children’s National Medical Center, Shanghai, China
| | - Shifu Wang
- Shandong Provincial Clinical Research Center for Children's Health and Disease, Children’s Hospital Affiliated to Shandong University, Jinan, Shandong Province, China
| | - Hui Yu
- Division of Infectious Diseases, Children’s Hospital of Fudan University, Children’s National Medical Center, Shanghai, China
| | - Jiangxia Wang
- Department of Infection Diseases Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jikui Deng
- Department of Infectious Diseases, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Hongmei Wang
- Department of Infectious Diseases, Shenzhen Children's Hospital, Shenzhen, Guangdong Province, China
| | - Chunzhen Hua
- Division of Infectious Diseases, The Children’s Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
| | - Zhiqiang Zhuo
- Department of Infectious Diseases, Xiamen Children’s Hospital (Children’s Hospital of Fudan University Xiamen Branch), Xiamen, Fujian Province, China
| | - Lei Chen
- Department of Medical Laboratory Diagnosis Center, Xiamen Children’s Hospital (Children's Hospital of Fudan University Xiamen Branch), Xiamen, Fujian Province, China
| | - Jianhua Hao
- Department of Medical Laboratory Diagnosis Center, Children’s Hospital of Kaifeng City, Kaifeng, Henan Province, China
| | - Wei Gao
- Department of Infectious Diseases, Children’s Hospital of Kaifeng City, Kaifeng, Henan Province, China
| | - Hong Zhang
- Department of Medical Laboratory Diagnosis Center, Children’s Hospital of Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ting Zhang
- Institue of Pediatric Infection, Immunity and Critical Care Medicine, Shanghai Children’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongmei Xu
- Department of Infection Diseases Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Chuanqing Wang
- Clinical Microbiology Laboratory, Children’s Hospital of Fudan University, Children’s National Medical Center, Shanghai, China
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Bal C, Gompelmann D, Krebs M, Antoniewicz L, Guttmann-Ducke C, Lehmann A, Milacek CO, Gysan MR, Wolf P, Jentus MM, Steiner I, Idzko M. Associations of hyponatremia and SIADH with increased mortality, young age and infection parameters in patients with tuberculosis. PLoS One 2022; 17:e0275827. [PMID: 36227934 PMCID: PMC9560481 DOI: 10.1371/journal.pone.0275827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 09/24/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Hyponatremia and the syndrome of inappropriate antidiuretic hormone secretion (SIADH) are associated with and can be caused by tuberculosis (TB) through meningitis by locally invading the hypothalamus, adrenal, or pituitary glands or possibly through ectopic ADH production. This study assessed the association of TB mortality with hyponatremia and SIADH in a large cohort of a university hospital in Austria. METHODS This retrospective study enrolled patients with hyponatremia and patients diagnosed with TB from 01/2001-11/2019 to assess the prevalence of TB in hyponatremia and TB morbidity and mortality in patients with and without hyponatremia. Sex, age, microbiological results, laboratory tests and comorbidities were analysed and used to calculate survival rates. RESULTS Of 107.532 patients with hyponatremia (0.07%) and 186 patients with TB (43%), 80 patients were diagnosed with both-hyponatremia and TB. Only three TB patients had SIADH, precluding further SIADH analysis. In hyponatremia, young age and high CRP levels showed significant associations with TB diagnosis (p<0.0001). Survival rates of patients diagnosed with TB with moderate to profound hyponatremia were significantly lower than those without hyponatremia (p = 0.002). CONCLUSION In this study of a large cohort from a tertiary care hospital in a non-endemic area of TB, 0.07% of patients presenting with hyponatremia, but especially younger patients and patients with high CRP values, were diagnosed with TB. Crucially, patients with moderate to profound hyponatremia had a significantly higher mortality rate and thus required increased medical care.
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Affiliation(s)
- Christina Bal
- Department of Pneumology, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
- * E-mail:
| | - Daniela Gompelmann
- Department of Pneumology, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
| | - Michael Krebs
- Department of Medicine III, Division of Endocrinology and Metabolism, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
| | - Lukasz Antoniewicz
- Department of Pneumology, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
| | - Claudia Guttmann-Ducke
- Department of Pneumology, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
| | - Antje Lehmann
- Department of Pneumology, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
| | | | - Maximilian Robert Gysan
- Department of Pneumology, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
| | - Peter Wolf
- Department of Medicine III, Division of Endocrinology and Metabolism, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
| | - Maaia-Margo Jentus
- Department of Pneumology, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
| | - Irene Steiner
- Center for Medical Statistics, Informatics, and Intelligent Systems (CeMSIIS), Section for Medical Statistics, Medical University of Vienna, Vienna, Austria
| | - Marco Idzko
- Department of Pneumology, University Hospital Vienna AKH, Medical University of Vienna, Vienna, Austria
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Mandala W, Munyenyembe A, Sulani I, Soko M, Mallewa J, Hiestand J. Acute Malaria in Malawian Children and Adults is Characterized by Thrombocytopenia That Normalizes in Convalescence. J Blood Med 2022; 13:485-494. [PMID: 36092852 PMCID: PMC9462550 DOI: 10.2147/jbm.s376476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/23/2022] [Indexed: 11/23/2022] Open
Abstract
Background Plasmodium falciparum malaria has been linked with significant perturbations of the peripheral cell-mediated immune system during acute phase. Some of these changes include lower than normal platelet counts. Although the exact mechanisms that drive thrombocytopenia in P. falciparum malaria are not fully known, a number of hypotheses have been proposed. We conducted two sets of studies with one aimed at determining platelet counts in Malawian children, and the other in adults during acute P. falciparum malaria and a month post treatment. Materials and Methods We recruited a total of 113 HIV-uninfected children with acute malaria [n=54 with uncomplicated malaria (UCM), n=30 with severe malarial anemia (SMA), n=29 presenting with cerebral malaria (CM)]. We also recruited 42 HIV-uninfected healthy controls. Out of the 113 participants with malaria, 73 (65%) [n=34 (63%) UCM, n=21 (70%) SMA and n=18 (62%) CM] were successfully followed-up one month after treatment. A 5mL peripheral blood sample was collected for platelet count using HMX Haematological Analyzer analysis both at baseline (acute malaria) and at follow-up a month later. Platelet counts were also determined in blood samples of 106 HIV-uninfected adults, 47 of whom presented with UCM and 29 with severe malaria (SM) and these counts were compared to those of 30 healthy controls. Of the malaria cases, platelet counts for 44 UCM and 21 SM were determined again during follow-up a month after treatment. Results In both children and adults, platelet counts were significantly lower during acute disease compared to the levels in the healthy controls with the lowest levels observed in CM (children) or SM (adults). These lower than normal levels increased close to normal levels a month post treatment. Conclusion P. falciparum malaria in Malawian children and adults was characterized by profound thrombocytopenia which recovered during convalescence.
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Affiliation(s)
- Wilson Mandala
- Basic Sciences Department, Kamuzu University of Health Sciences, Blantyre, Malawi.,Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi.,Academy of Medical Sciences, Malawi University of Science and Technology, Thyolo, Malawi
| | - Alinane Munyenyembe
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Innocent Sulani
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Monica Soko
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre, Malawi
| | - Jane Mallewa
- Medicine Department, Kamuzu University of Health Sciences, Blantyre, Malawi
| | - Jasmin Hiestand
- Medicine Department, Kamuzu University of Health Sciences, Blantyre, Malawi
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Molecular Pathways in Pulmonary Arterial Hypertension. Int J Mol Sci 2022; 23:ijms231710001. [PMID: 36077398 PMCID: PMC9456336 DOI: 10.3390/ijms231710001] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/20/2022] [Accepted: 08/23/2022] [Indexed: 11/16/2022] Open
Abstract
Pulmonary arterial hypertension is a multifactorial, chronic disease process that leads to pulmonary arterial endothelial dysfunction and smooth muscular hypertrophy, resulting in impaired pliability and hemodynamics of the pulmonary vascular system, and consequent right ventricular dysfunction. Existing treatments target limited pathways with only modest improvement in disease morbidity, and little or no improvement in mortality. Ongoing research has focused on the molecular basis of pulmonary arterial hypertension and is going to be important in the discovery of new treatments and genetic pathways involved. This review focuses on the molecular pathogenesis of pulmonary arterial hypertension.
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Ayisi-Boateng NK, Enimil A, Essuman A, Lawson H, Mohammed A, Aninng DO, Fordjour EA, Spangenberg K. Family APGAR and treatment outcomes among HIV patients at two ART Centres in Kumasi, Ghana. Ghana Med J 2022; 56:160-168. [PMID: 37448990 PMCID: PMC10336640 DOI: 10.4314/gmj.v56i3.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
OBJECTIVES This study aimed to examine the association between Family Adaptability, Partnership, Growth, Affection and Resolve (Family APGAR) and HIV treatment outcomes. DESIGN A cross-sectional study using the Family APGAR questionnaire. SETTING The study was conducted in Kumasi, Ghana, at the Komfo Anokye Teaching Hospital and the Kwame Nkrumah University of Science and Technology Hospital. PARTICIPANTS Consenting HIV-positive patients who had been on treatment for at least 12 months were recruited. MAIN OUTCOME MEASURES The Family APGAR questionnaire was administered, and relevant data were extracted from hospital records and analysed using STATA® software. The relationship between Family APGAR and treatment outcomes was determined using Chi-squared tests or Fisher's exact test. RESULTS Approximately 70.1% of 304 participants were females with a mean age of 41.8 years (±9.9). At treatment initiation, 47.4% of the patients presented at World Health Organisation (WHO) clinical stages I and II and had a CD4 count ≥ 200 cells/mm3. Females were less likely (Odds Ratio= 0.52; 95% CI=0.31 - 0.90, p = 0.018) to report late for treatment compared with the males. After 12 months of treatment, approximately 70% recorded undetectable viral load. Patients with functional families constituted 70.4%, which had a statistically significant relationship with viral load (p = 0.041). CONCLUSION HIV care providers should incorporate family functionality evaluation into clinical practice and provide early essential support to enhance treatment outcomes. FUNDING None declared.
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Affiliation(s)
- Nana K Ayisi-Boateng
- Department of Medicine, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- University Hospital, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Anthony Enimil
- Department of Child Health, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Akye Essuman
- Family Medicine Unit, Department of Community Health, University of Ghana Medical School, Accra, Ghana
| | - Henry Lawson
- Family Medicine Unit, Department of Community Health, University of Ghana Medical School, Accra, Ghana
| | - Aliyu Mohammed
- Department of Epidemiology and Biostatistics, School of Public Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Douglas O Aninng
- Department of Epidemiology and Biostatistics, School of Public Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Emmanuel A Fordjour
- Department of Modern Languages, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
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Santos FA, Cruz GS, Vieira FA, Queiroz BR, Freitas CD, Mesquita FP, Souza PF. Systematic Review of Antiprotozoal Potential of Antimicrobial Peptides. Acta Trop 2022; 236:106675. [DOI: 10.1016/j.actatropica.2022.106675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/01/2022]
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Mandala WL, Ward S, Taylor TE, Wassmer SC. Characterization of Lymphocyte Subsets in Lymph Node and Spleen Sections in Fatal Pediatric Malaria. Pathogens 2022; 11:851. [PMID: 36014972 PMCID: PMC9413449 DOI: 10.3390/pathogens11080851] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 02/05/2023] Open
Abstract
Secondary lymphoid tissues play a major role in the human immune response to P. falciparum infection. Previous studies have shown that acute falciparum malaria is associated with marked perturbations of the cellular immune system characterized by lowered frequency and absolute number of circulating T cell subsets. A temporary relocation of T cells, possibly by infiltration to secondary lymphoid tissue, or their permanent loss through apoptosis, are two proposed explanations for this observation. We conducted the present study to determine the phenotype of lymphocyte subsets that accumulate in the lymph node and spleen during acute stages of falciparum malaria infection in Malawian children, and to test the hypothesis that lymphocytes are relocated to lymphoid tissues during acute infection. We stained tissue sections from children who had died of the two common clinical forms of severe malaria in Malawi, namely severe malarial anemia (SMA, n = 1) and cerebral malaria (CM, n = 3), and used tissue sections from pediatric patients who had died of non-malaria sepsis (n = 2) as controls. Both lymph node and spleen tissue (red pulp) sections from CM patients had higher percentages of T cells (CD4+ and CD8+) compared to the SMA patient. In the latter, we observed a higher percentage of CD20+ B cells in the lymph nodes compared to CM patients, whereas the opposite was observed in the spleen. Both lymph node and spleen sections from CM patients had increased percentages of CD69+ and CD45RO+ cells compared to tissue sections from the SMA patient. These results support the hypothesis that the relocation of lymphocytes to spleen and lymph node may contribute to the pan-lymphopenia observed in acute CM.
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Affiliation(s)
- Wilson L. Mandala
- Academy of Medical Sciences, Malawi University of Science and Technology, Thyolo 310106, Malawi
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre 312233, Malawi;
| | - Steve Ward
- Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK;
| | - Terrie E. Taylor
- Blantyre Malaria Project, Kamuzu University of Health Sciences, Blantyre 312233, Malawi;
- College of Osteopathic Medicine, Michigan State University, E. Lansing, MI 48824, USA
| | - Samuel C. Wassmer
- Malawi Liverpool Wellcome Trust Clinical Research Programme, Blantyre 312233, Malawi;
- Department of Infection Biology, London School of Hygiene & Tropical Medicine, London WC1E 7HT, UK
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Wagle A, Goerlich E, Post WS, Woldu B, Wu KC, Hays AG. HIV and Global Cardiovascular Health. Curr Cardiol Rep 2022; 24:1149-1157. [PMID: 35802233 DOI: 10.1007/s11886-022-01741-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/19/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE OF REVIEW Because of effective combination antiretroviral therapy, people living with HIV (PLWH) are living longer but developing chronic age-related conditions including cardiovascular disease (CVD), the leading cause of death globally. This review aims to discuss the epidemiology, mechanisms, and clinical considerations of CVD in PLWH from a global perspective. RECENT FINDINGS PLWH are at greater risk for CVD at chronologically younger ages than those without HIV. Potential underlying mechanisms for CVD in PLWH include systemic inflammation, comorbidities, immune-mediated, or treatment-related mechanisms. There is also risk factor variation based on geographical location, including non-traditional CVD risk factors. CVD is prevalent in PLWH and increasing on a global scale. Further understanding the unique epidemiology, risk factors, and treatment of CVD in this population will improve the care of PLWH.
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Affiliation(s)
- Anjali Wagle
- Department of Medicine, Johns Hopkins Division of Cardiology, Baltimore, MD, USA
| | - Erin Goerlich
- Department of Medicine, Johns Hopkins Division of Cardiology, Baltimore, MD, USA
| | - Wendy S Post
- Department of Medicine, Johns Hopkins Division of Cardiology, Baltimore, MD, USA.,Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Bethel Woldu
- Department of Medicine, Johns Hopkins Division of Cardiology, Baltimore, MD, USA.,MedStar Heart and Vascular Institute, Baltimore, MD, USA.,Department of Medicine, Division of Cardiology, MedStar Georgetown University, Washington, DC, USA
| | - Katherine C Wu
- Department of Medicine, Johns Hopkins Division of Cardiology, Baltimore, MD, USA.,Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Allison G Hays
- Department of Medicine, Johns Hopkins Division of Cardiology, Baltimore, MD, USA. .,Ciccarone Center for the Prevention of Cardiovascular Disease, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Zhang Y, Wang L, Jiang Z, Yan H, Liu X, Gu J, Wang G, Cheng X, Leng Q, Long Q, Liang Z, Wang J, Liang L, Qiu Y, Chen L, Hong H. Estimating Costs of the HIV Comprehensive Intervention Using the Spectrum Model - China, 2015-2019. China CDC Wkly 2022; 4:554-559. [PMID: 35813887 PMCID: PMC9260083 DOI: 10.46234/ccdcw2022.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/10/2022] [Indexed: 12/03/2022] Open
Abstract
INTRODUCTION In order to facilitate human immunodeficiency virus (HIV) treatment and prevention, the resource needs for HIV national strategic planning in developing regions were estimated based on Spectrum, the universal HIV cost-effectiveness analysis software. METHODS Based on the theoretical framework of Spectrum, the study developed a cost measurement tool for HIV, and calculated the cost of HIV prevention and control in 6 sampled cities in China during 2015-2019 using the Spectrum model. RESULTS From 2015 to 2019, the average annual costs for HIV prevention and control for Shijiazhuang, Yantai, Ningbo, Zhenjiang, Foshan, and Wuxi cities were 46.78, 47.55, 137.49, 24.73, 74.37, and 58.30 million Chinese yuan (CNY), respectively. The per capita costs were 4.37, 6.73, 17.33, 7.77, 17.56, and 8.91 CNY, respectively. In terms of the cost structure, the ratio of preventive intervention funds to therapeutic intervention funds (antiviral treatment) varied in sampled cities. DISCUSSION Developing comprehensive and systematic HIV fund calculation methods can provide a research basis for rational resource allocation in the field of HIV.
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Affiliation(s)
- Youran Zhang
- School of Health Service Management, Anhui Medical University, Hefei City, Anhui Province, China
| | - Lili Wang
- School of Health Service Management, Anhui Medical University, Hefei City, Anhui Province, China
| | - Zhen Jiang
- Division of Prevention and intervention, National Center for AIDS and STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing Municipality, China,Jiangzhen,
| | - Hongjing Yan
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing City, Guangxi Zhuang Autonomous Region, China
| | - Xiaoxia Liu
- Zhenjiang Center for Disease Control and Prevention, Zhenjiang City, Jiangsu Province, China
| | - Jing Gu
- Wuxi Center for Disease Control and Prevention, Wuxi City, Jiangsu Province, China
| | - Guoyong Wang
- Shandong Provincial Center for Disease Control and Prevention, Jinan City, Jiangsu Province, China
| | - Xiaosong Cheng
- Yantai Center for Disease Control and Prevention, Yantai City, Shandong Province, China
| | - Qiyan Leng
- Yantai Center for Disease Control and Prevention, Yantai City, Shandong Province, China
| | - Qisui Long
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou City, Guangdong Province, China
| | - Zimian Liang
- Foshan Center for Disease Control and Prevention, Foshan City, Guangdong Province, China
| | - Jing Wang
- Foshan Center for Disease Control and Prevention, Foshan City, Guangdong Province, China
| | - Liang Liang
- Hebei Provincial Center for Disease Control and Prevention, Shijiazhuang City, Hebei Province, China
| | - Yanchao Qiu
- Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang City, Hebei Province, China
| | - Lin Chen
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou City, Zhejiang Province, China
| | - Hang Hong
- Ningbo Center for Disease Control and Prevention, Ningbo City, Zhejiang Province, China
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Zhang L, Liu Y, Zhao S, Wang Z, Zhang M, Zhang S, Wang X, Zhang S, Zhang W, Hao L, Jiao G. The Incidence and Prevalence of Pulmonary Hypertension in the COPD Population: A Systematic Review and Meta-Analysis. Int J Chron Obstruct Pulmon Dis 2022; 17:1365-1379. [PMID: 35711174 PMCID: PMC9196913 DOI: 10.2147/copd.s359873] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 04/30/2022] [Indexed: 12/22/2022] Open
Abstract
Purpose Chronic obstructive pulmonary disease (COPD)-related pulmonary hypertension (PH) is one of the most common comorbidities of COPD, and often leads to a worse prognosis. Although the estimated prevalence and risk factors of COPD-related PH have been widely reported, these results have not been well integrated. This study aimed to review the worldwide incidence and prevalence of COPD-related PH and explore possible factors affecting its prevalence. Patients and Methods We searched four electronic databases (Web of Science, Embase, Cochrane, and MEDLINE) to identify all observational studies on the prevalence of COPD-related PH from database creation until July 20, 2021. Eligibility screening, quality assessment, and data extraction of the retrieved studies were independently conducted by two reviewers. Meta-analyses were performed to determine the prevalence of PH in the COPD population. Random-effects meta-regression model analyses were conducted to investigate the sources of heterogeneity. Results Altogether, 38 articles were included in the meta-analyses. The pooled prevalence was 39.2% (95% CI: 34.0–44.4, I2 = 97.6%) for COPD-related PH. Subgroup analyses showed that the prevalence of PH increased with COPD severity, where the majority (30.2%) had mild PH and the minority had severe PH (7.2%). Furthermore, we found a significant regional difference in the prevalence of COPD-related PH (P = 0.000), which was the highest in Africa (64.0%) and the lowest in Europe (30.4%). However, stratified studies on other factors involving mean age, sex, enrolment time, participant recruitment settings, and PH diagnostic methods showed no significant differences in prevalence (P >0.05). Conclusion The global incidence of PH in the COPD population is very high, and there are significant regional and international variations. Patients with COPD should be screened for PH and contributing risk factors to reduce the burden on individuals and society.
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Affiliation(s)
- Limin Zhang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Yujia Liu
- College of Traditional Chinese Medicine, Liaoning University of Traditional Chinese Medicine, Shenyang, Liaoning, 110032, People's Republic of China
| | - Shuai Zhao
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Zhen Wang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Miaomiao Zhang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Su Zhang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Xinzhuo Wang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Shuang Zhang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Wenyan Zhang
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
| | - Liying Hao
- Department of Pharmaceutical Pharmacology and Toxicology, China Medical University, Shenyang, Liaoning, 110000, People's Republic of China
| | - Guangyu Jiao
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, 110004, People's Republic of China
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Ahmed HA, Mohamed J, Akuku IG, Lee KK, Alam SR, Perel P, Shah J, Ali MK, Eskander S, Chung MH, Shah AS. Cardiovascular risk factors and markers of myocardial injury and inflammation in people living with HIV in Nairobi, Kenya: a pilot cross-sectional study. BMJ Open 2022; 12:e062352. [PMID: 35667720 PMCID: PMC9171254 DOI: 10.1136/bmjopen-2022-062352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES To determine the prevalence of cardiovascular disease (CVD) risk factors and explore associations with high-sensitivity cardiac troponin I (hscTnI) and high-sensitivity C-reactive protein (hsCRP) in people living with HIV (PLHIV) in Kenya. DESIGN Pilot cross-sectional study. SETTING Data were collected from community HIV clinics across two sites in Nairobi, Kenya, from July 2019 to May 2020. PARTICIPANTS Convenience sample of 200 PLHIV (≥30 years with no prior history of CVD). OUTCOME MEASURES Prevalence of cardiovascular risk factors and its association with hsTnI and hsCRP levels. RESULTS Across 200 PLHIV (median age 46 years, IQR 38-53; 61% women), the prevalence of hypercholesterolaemia (total cholesterol >6.1 mmol/L) and hypertension were 19% (n=30/199) and 30% (n=60/200), respectively. Smoking and diabetes prevalence was 3% (n=5/200) and 4% (n=7/200). HscTnI was below the limit of quantification (<2.5 ng/L) in 65% (n=109/169). High (>3 mg/L), intermediate (1-3 mg/L) and low (<1 mg/L) hsCRP levels were found in 38% (n=75/198), 33% (n=65/198) and 29% (n=58/198), respectively. Framingham laboratory-based risk scores classified 83% of PLHIV at low risk with 12% and 5% at intermediate and high risk, respectively. Older age (adjusted OR (aOR) per year increase 1.05, 95% CI 1.01 to 1.08) and systolic blood pressure (140-159 mm Hg (aOR 2.96; 95% CI 1.09 to 7.90) and >160 mm Hg (aOR 4.68, 95% CI 1.55 to 14) compared with <140 mm Hg) were associated with hscTnI levels. No associations were observed between hsCRP and CVD risk factors. CONCLUSION The majority of PLHIV-using traditional risk estimation systems-have a low estimated CVD risk likely reflecting a younger aged population predominantly consisting of women. Hypertension and hypercholesterolaemia were common while smoking and diabetes rates remained low. While hscTnI values were associated with increasing age and raised blood pressure, no associations between hsCRP levels and traditional cardiovascular risk factors were observed.
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Affiliation(s)
- Hassan Adan Ahmed
- Internal Medicine, The Aga Khan University Hospital Nairobi, Nairobi, Kenya
| | - Jeilan Mohamed
- Internal Medicine, The Aga Khan University Hospital Nairobi, Nairobi, Kenya
| | - Isaiah G Akuku
- Institute of Tropical and Infectious Diseases, University of Nairobi, Nairobi, Kenya
| | - Kuan Ken Lee
- BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Shirjel R Alam
- Department of Non-communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
- Cardiology, North Bristol Trust, Bristol, UK
| | - Pablo Perel
- Department of Non-communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Jasmit Shah
- Internal Medicine, The Aga Khan University Hospital Nairobi, Nairobi, Kenya
| | - Mohammed K Ali
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
- Department of Family and Preventive Medicine, School of Medicine, Emory University, Atlanta, Georgia, USA
| | - Sherry Eskander
- Department of Medicine, Coptic Hospital and Coptic Hope Center for Infectious Diseases, Nairobi, Kenya
| | - Michael H Chung
- Department of Medicine, Emory University, Atlanta, Georgia, USA
| | - Anoop Sv Shah
- Department of Non-communicable Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
- Department of Cardiovascular Medicine, Imperial College Healthcare NHS Trust, London, UK
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González-Domenech CM, Plaza-Andrades IJ, Garrido-Sanchez L, Queipo-Ortuño MI. Synergic effect of metabolic syndrome and lipodystrophy on oxidative stress and inflammation process in treated HIV-patients. ENFERMEDADES INFECCIOSAS Y MICROBIOLOGIA CLINICA (ENGLISH ED.) 2022; 40:310-316. [PMID: 35680349 DOI: 10.1016/j.eimce.2020.11.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 11/23/2020] [Indexed: 06/15/2023]
Abstract
The aim of this study was to assess the effect of lipodystrophy (LD) associated to metabolic syndrome (MS) on oxidative stress and inflammation in a cohort of 243 HIV-infected patients with MS, all of them under three different antiretroviral regimens. We collected immunovirological, biochemical and metabolic data, as well as anthropometric measurements. In addition, cardiovascular risk was also assessed by means of Atherogenic Index of Plasma (API) and Framingham Risk Score. The MS-LD patient set was characterized by a lower initial lymphocyte CD4 count and CD4/CD8 ratio and a higher initial viral load than the group without LD. We also found worse lipidic and glycaemic profiles (with lower HDL-cholesterol and higher triglyceride and glucose levels) in the MS-LD group. BMI, systolic blood pressure and Framingham score were significantly increased compared to MS-Non LD. In addition, patients with MS and LD had significantly higher levels of carbonylated proteins, lipid peroxidation, IL-6 and IL-8, as well as a significant decrease in the levels of leptin, adiponectin and antioxidant activities of catalase, super oxide dismutase and glutathione associated enzymes. In MS-LD HIV-1 patients, a significant negative correlation was found between Framingham Risk Score and the antioxidant biomarkers, however a positive association was found between API and protein-C reactive and carbonylated proteins. Segregating by ART, the above-mentioned conditions were worse within the MS-LD group whose treatment contained protease inhibitors, such as lopinavir. In conclusion, HIV-1 infected patients treated for at least six months, especially with regimens including PIs, showed a worsening of inflammatory process and oxidative stress.
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Affiliation(s)
| | - Isaac J Plaza-Andrades
- Unidad de Gestión Clínica de Endocrinología y Nutrición del Hospital Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga (IBIMA), UMA, Málaga, Spain
| | - Lourdes Garrido-Sanchez
- Unidad de Gestión Clínica de Endocrinología y Nutrición del Hospital Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga (IBIMA), UMA, Málaga, Spain.
| | - María Isabel Queipo-Ortuño
- Unidad de Gestión Clínica Intercentros de Oncología Médica, Hospitales Universitarios Regional y Virgen de la Victoria, Instituto de Investigación Biomédica de Málaga (IBIMA)-CIMES-UMA, Málaga, Spain
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Factors associated with viral suppression and rebound among adult HIV patients on treatment: a retrospective study in Ghana. AIDS Res Ther 2022; 19:21. [PMID: 35614510 PMCID: PMC9131580 DOI: 10.1186/s12981-022-00447-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/04/2022] [Indexed: 11/30/2022] Open
Abstract
Background Viral suppression remains the most desired outcome in the management of patients with Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) and this can be achieved by an effective Antiretroviral Therapy (ART). However, some patients who achieve viral suppression may experience viral rebound with dire consequence. We evaluated viral suppression and rebound and their associated factors among adult patients on ART in Kumasi, Ghana. Methods This hospital-based retrospective study was conducted at the Komfo Anokye Teaching Hospital in Ghana. We reviewed the medical records of 720 HIV patients on ART. Statistical analyses were performed using SPSS Version 26.0 and GraphPad prism version 8.0. p < 0.05 was considered statistically significant. Results Proportions of patients with viral suppression and viral rebound were 76.1% and 21.0% respectively. Being diagnosed at WHO stage I [aOR = 11.40, 95% CI (3.54–36.74), p < 0.0001], having good adherence to ART [aOR = 5.09, 95% CI (2.67–9.73), p < 0.0001], taking Nevirapine-based regimen [aOR = 4.66, 95% CI (1.20–18.04), p = 0.0260] and increasing duration of treatment (p < 0.0001) were independently associated with higher odds of viral suppression. However, being diagnosed at WHO stage II (aOR = 7.39, 95% CI 2.67–20.51; p < 0.0001) and stage III (aOR = 8.62, 95% CI 3.16–23.50; p < 0.0001), having poor adherence (aOR = 175.48, 95% CI 44.30–695.07; p < 0.0001), recording baseline suppression value of 20–49 copies/mL (aOR = 6.43, 95% CI 2.72–15.17; p < 0.0001) and being treated with Zidovudine/Lamivudine/Efavirenz (aOR = 6.49, 95% CI 1.85–22.79; p = 0.004) and Zidovudine/Lamivudine/Nevirapine (aOR = 18.68, 95% CI 1.58–220.90; p = 0.02) were independently associated with higher odds of viral rebound. Conclusion Approximately 76% viral suppression rate among HIV patients on ART in Kumasi falls below the WHO 95% target by the year 2030. Choice of ART combination, drug adherence, WHO clinical staging and baseline viral load are factors associated with suppression or rebound. These clinical characteristics of HIV patients must be monitored concurrently with the viral load.
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Teixeira AR, Pérez-Cabezas B, Costa DM, Sá M, Golba S, Sefiane-Djemaoune H, Ribeiro J, Kaneko I, Iwanaga S, Yuda M, Tsuji M, Boscardin SB, Amino R, Cordeiro-da-Silva A, Tavares J. Immunization with CSP and a RIG-I Agonist is Effective in Inducing a Functional and Protective Humoral Response Against Plasmodium. Front Immunol 2022; 13:868305. [PMID: 35669785 PMCID: PMC9163323 DOI: 10.3389/fimmu.2022.868305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/07/2022] [Indexed: 11/13/2022] Open
Abstract
Malaria is a major public health concern, as a highly effective human vaccine remains elusive. The efficacy of a subunit vaccine targeting the most abundant protein of the sporozoite surface, the circumsporozoite protein (CSP) has been hindered by difficulties in generating an effective humoral response in both quantity and quality. Using the rodent Plasmodium yoelii model we report here that immunization with CSP adjuvanted with 5’ppp-dsRNA, a RIG-I agonist, confers early and long-lasting sterile protection in mice against stringent sporozoite and mosquito bite challenges. The immunization induced high levels of antibodies, which were functional in targeting and killing the sporozoites and were sustained over time through the accumulation of long-lived plasma cells in the bone marrow. Moreover, 5’ppp-dsRNA-adjuvanted immunization with the CSP of P. falciparum was also significantly protective against challenges using a transgenic PfCSP-expressing P. yoelii parasite. Conversely, using the TLR3 agonist poly(A:U) as adjuvant resulted in a formulation that despite inducing high antibody levels was unable to generate equally functional antibodies and was, consequently, less protective. In conclusion, we demonstrate that using 5’ppp-dsRNA as an adjuvant to vaccines targeting CSP induces effective anti-Plasmodium humoral immunity.
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Affiliation(s)
- Ana Rafaela Teixeira
- Host-Parasite Interactions Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Begoña Pérez-Cabezas
- Host-Parasite Interactions Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - David M. Costa
- Host-Parasite Interactions Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Mónica Sá
- Host-Parasite Interactions Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Sylvain Golba
- Center for Production and Infection of Anopheles, Institut Pasteur, Paris, France
| | | | - Joana Ribeiro
- Host-Parasite Interactions Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - Izumi Kaneko
- Department of Medical Zoology, Mie University Graduate School of Medicine, Mie, Japan
| | - Shiroh Iwanaga
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Masao Yuda
- Department of Medical Zoology, Mie University Graduate School of Medicine, Mie, Japan
| | - Moriya Tsuji
- Aaron Diamond AIDS Research Center, Department of Medicine, Columbia University Irving Medical Center, New York, NY, United States
| | - Silvia Beatriz Boscardin
- Institute for Investigation in Immunology (iii)-INCT, São Paulo, Brazil
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Rogerio Amino
- Unit of Malaria Infection and Immunity, Institut Pasteur, Paris, France
| | - Anabela Cordeiro-da-Silva
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- Parasite Disease Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Joana Tavares
- Host-Parasite Interactions Group, Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
- Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
- *Correspondence: Joana Tavares,
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Analysis of Environmental and Pathogenic Bacteria Attached to Aerosol Particles Size-Separated with a Metal Mesh Device. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19095773. [PMID: 35565166 PMCID: PMC9099785 DOI: 10.3390/ijerph19095773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 02/01/2023]
Abstract
Metal mesh devices (MMDs) are novel materials that enable the precise separation of particles by size. Structurally, MMDs consist of a periodic arrangement of square apertures of characteristic shapes and sizes on a thin nickel membrane. The present study describes the separation of aerosol particles using palm-top-size collection devices equipped with three types of MMDs differing in pore size. Aerosols were collected at a farm located in the suburbs of Nairobi, Kenya; aerosol particles were isolated, and pathogenic bacteria were identified in this microflora by next-generation sequencing analysis. The composition of the microflora in aerosol particles was found to depend on particle size. Gene fragments were obtained from the collected aerosols by PCR using primers specific for the genus Mycobacterium. This analysis showed that Mycobacterium obuense, a non-tuberculous species of mycobacteria that causes lung diseases, was present in these aerosols. These findings showed that application of this MMD analytical protocol to aerosol particles can facilitate the investigation of airborne pathogenic bacteria.
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Friedman W, Wilson N. Can nudging overcome procrastinating on preventive health investments? ECONOMICS AND HUMAN BIOLOGY 2022; 45:101040. [PMID: 35176570 DOI: 10.1016/j.ehb.2021.101040] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 06/13/2021] [Accepted: 07/01/2021] [Indexed: 06/14/2023]
Abstract
A fundamental puzzle about human behavior is low investment in preventive health inputs. Present-biased preferences have frequently been put forth as a theoretical explanation for this, but with limited empirical evidence supporting it, especially in developing countries. We extend our previous analysis of a field experiment testing advertising strategies to increase demand for a potentially life-saving preventive health technology, voluntary medical male circumcision. Offering compensation of US$10 conditional on a complement to the procedure, a short counseling session at a providing clinic, tripled uptake of the procedure. This is consistent with the idea that subsidizing a complement encouraged procrastinating men with latent demand to invest in preventive health. In addition, framing the basic advertisement using the statement "Are you tough enough?" doubled uptake.
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Affiliation(s)
- Willa Friedman
- Department of Economics, University of Houston, Houston, TX, United States.
| | - Nicholas Wilson
- Office of Evaluation Sciences and Department of Economics, Reed College, Portland, OR, United States.
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Underestimation of travel-associated risks by adult and paediatric travellers compared to expert assessment: A cross-sectional study at a hospital-based family pre-travel clinic. Travel Med Infect Dis 2022; 47:102315. [PMID: 35331951 DOI: 10.1016/j.tmaid.2022.102315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 02/20/2022] [Accepted: 03/17/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND Travellers' perception of their risk for acquiring travel-related conditions is an important contributor to decisions and behaviors during travel. In this study, we aimed to assess the differences between traveller-perceived and expert-assessed risk of travel-related conditions in children and adults travelling internationally and describe factors that influence travellers' perception of risk. METHODS Children and adults were recruited at the Hospital for Sick Children's Family Travel Clinic between October 2014 and July 2015. A questionnaire was administered to participants to assess their perceived risk of acquiring 32 travel-related conditions using a 7-point Likert scale. Conditions were categorized as vector-borne diseases, vaccine-preventable diseases, food and water borne diseases, sexually transmitted infections and other conditions. Two certified travel medicine experts reviewed each patient's chart and assigned a risk score based on the same 7-point Likert scale. Traveller and expert risk scores were compared using paired t-tests. RESULTS In total, 207 participants were enrolled to participate in this study, 97 children (self-reported, n = 8; parent-reported, n = 89), and 110 adults. Travel-related risk for adults and parents answering for their children were significantly underestimated when compared to expert-assessed risk for 26 of the 32 assessed conditions. The underestimated conditions were the same for both adults and parents answering for children. Travel-related risk was not over-estimated for any condition. CONCLUSIONS Adults underestimated their children's and their own risk for most travel-related conditions. Strategies to improve the accuracy of risk perception of travel-related conditions by travellers are needed to optimize healthy travel for children and their families.
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