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Phillips TK, Kassanjee R, Maxwell N, Anderson K, Johnson L, Moolla H, Myer L, Chi BH, Euvrard J, Boulle A, Davies M, Cornell M, de Waal R. ART history prior to conception: trends and association with postpartum disengagement from HIV care in Khayelitsha, South Africa (2013-2019): a retrospective cohort study. J Int AIDS Soc 2024; 27:e26236. [PMID: 38566482 PMCID: PMC10988117 DOI: 10.1002/jia2.26236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 03/12/2024] [Indexed: 04/04/2024] Open
Abstract
INTRODUCTION In recent years, the expansion of HIV treatment eligibility has resulted in an increase in people with antiretroviral therapy (ART) experience prior to pregnancy but little is known about postpartum engagement in care in this population. We examined differences in disengagement from HIV care after delivery by maternal ART history before conception. METHODS We analysed data from people living with HIV (aged 15-49) in Khayelitsha, South Africa, with ≥1 live birth between April 2013 and March 2019. We described trends over time in ART history prior to estimated conception, classifying ART history groups as: (A) on ART with no disengagement (>270 days with no evidence of HIV care); (B) returned before pregnancy following disengagement; (C) restarted ART in pregnancy after disengagement; and (D) ART new start in pregnancy. We used Kaplan-Meier curves and proportional-hazards models (adjusted for maternal age, number of pregnancy records and year of delivery) to examine the time to disengagement from delivery to 2 years postpartum. RESULTS Among 7309 pregnancies (in 6680 individuals), the proportion on ART (A) increased from 19% in 2013 to 41% in 2019. The proportions of those who returned (B) and restarted (C) increased from 2% to 13% and from 2% to 10%, respectively. There was a corresponding decline in the proportion of new starts (D) from 77% in 2013 to 36% in 2019. In the first recorded pregnancy per person in the study period, 26% (95% CI 25-27%) had disengaged from care by 1 year and 34% (95% CI 33-36%) by 2 years postpartum. Individuals who returned (B: aHR 2.10, 95% CI 1.70-2.60), restarted (C: aHR 3.32, 95% CI 2.70-4.09) and newly started ART (D: aHR 2.41, 95% CI 2.12-2.74) had increased hazards of postpartum disengagement compared to those on ART (A). CONCLUSIONS There is a growing population of people with ART experience prior to conception and postpartum disengagement varies substantially by ART history. Antenatal care presents an important opportunity to understand prior ART experiences and an entry into interventions for strengthened engagement in HIV care.
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Affiliation(s)
- Tamsin Kate Phillips
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
- Division of Epidemiology & BiostatisticsSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Reshma Kassanjee
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Nicola Maxwell
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Kim Anderson
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Leigh Johnson
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Haroon Moolla
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Landon Myer
- Division of Epidemiology & BiostatisticsSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Benjamin H. Chi
- Department of Obstetrics and GynecologySchool of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Jonathan Euvrard
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
- Department of Health and WellnessProvincial Government of the Western CapeCape TownSouth Africa
| | - Andrew Boulle
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
- Department of Health and WellnessProvincial Government of the Western CapeCape TownSouth Africa
| | - Mary‐Ann Davies
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
- Department of Health and WellnessProvincial Government of the Western CapeCape TownSouth Africa
| | - Morna Cornell
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Renee de Waal
- Centre for Infectious Disease Epidemiology & ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
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Smeallie ET, Choi SW, Mody R, Guetterman TC, Nessle CN. "Better at home": Mixed methods report of intricacies in pediatric febrile neutropenia management. Cancer Med 2024; 13:e7106. [PMID: 38506249 PMCID: PMC10952020 DOI: 10.1002/cam4.7106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 02/02/2024] [Accepted: 03/02/2024] [Indexed: 03/21/2024] Open
Abstract
INTRODUCTION Many febrile neutropenia (FN) episodes are low risk (LR) for severe outcomes and can safely receive less aggressive management and early hospital discharge. Validated risk tools are recommended by the Children's Oncology Group to identify LR FN episodes. However, the complex dynamics of early hospital discharge and burdens faced by caregivers associated with the FN episode have been inadequately described. METHODS An adapted quality-of-life (QoL) survey instrument was administered by a convergent mixed methods design; qualitative and quantitative data from two sources, the medical record and the mixed methods survey instrument, were independently analyzed prior to linkage and integration. Code book was informed by conceptual framework; open coding was used. Mixed methods analysis used joint display of results to determine meta-inferences. RESULTS Twenty-eight patient-caregiver dyads participated with a response rate of 87%. Of the 27 FN episodes, 51.8% (14/27) were LR and 40.7% (11/27) had an early hospital discharge. The LR and early hospital discharge groups had higher mean QoL scores comparatively. Meta-inferences are reciprocal influencers and expand the complex situation; FN negatively affects the entire family, and the benefits of hospital management were outweighed by risks and worsened symptoms, so an individualized approach to management and care at home was preferred. CONCLUSION Early discharge of LR FN episodes positively impacts QoL, yet risk-stratified management for FN is intricately complex. Optimal FN management should prioritize the patient's overall health; shared decision-making is recommended and can improve care delivery. These results should be confirmed in a larger, more heterogeneous population.
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Affiliation(s)
| | - Sung W. Choi
- Department of PediatricsUniversity of MichiganAnn ArborMichiganUSA
- Division of Pediatric Hematology OncologyUniversity of MichiganAnn ArborMichiganUSA
| | - Rajen Mody
- Department of PediatricsUniversity of MichiganAnn ArborMichiganUSA
- Division of Pediatric Hematology OncologyUniversity of MichiganAnn ArborMichiganUSA
| | - Timothy C. Guetterman
- Rogel Comprehensive Cancer CenterUniversity of MichiganAnn ArborMichiganUSA
- Department of Family Medicine, Mixed Methods ProgramUniversity of MichiganAnn ArborMichiganUSA
| | - Charles N. Nessle
- Department of PediatricsUniversity of MichiganAnn ArborMichiganUSA
- Division of Pediatric Hematology OncologyUniversity of MichiganAnn ArborMichiganUSA
- Fogarty International CenterNational Institute of HealthBethesdaMarylandUSA
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Aguzzoli Peres F, Haas AN, Martha AD, Chan M, Steele M, Ferretti MT, Ngcobo NN, Ilinca S, Domínguez‐Vivero C, Leroi I, Sajnani N, Zimmer ER, Kornhuber A, Kalache A, Holtzhausen B, Tristão‐Pereira C, Dupont C, Cohen D, de Jong D, Facal D, O'Sullivan D, Mateus E, Roso E, Estrop E, Gamba G, San Martin Elexpe G, Ulises Diaz Hernández H, Quaid H, Govia I, Barbosa J, García del Moral J, Miller J, García García JA, Quaid K, Navarro L, García LZ, Waters L, Molete L, Godoy ME, Sigauke M, de Ataide Schulte MW, Estrop P, San Martin Elexpe Cardoso P, Perez R, Patterson R, Chakrabarti R, Wong R, Marsillas S, Lowe S, Rego TS, Farombi T, Montgomery T, in ‘t Veen T, Yanni V, Weidner W, Ibanez A. Walking the talk for dementia: A unique immersive, embodied, and multi-experiential initiative. Alzheimers Dement 2024; 20:2309-2322. [PMID: 38275208 PMCID: PMC10984440 DOI: 10.1002/alz.13644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 11/26/2023] [Accepted: 11/27/2023] [Indexed: 01/27/2024]
Abstract
Coping with dementia requires an integrated approach encompassing personal, health, research, and community domains. Here we describe "Walking the Talk for Dementia," an immersive initiative aimed at empowering people with dementia, enhancing dementia understanding, and inspiring collaborations. This initiative involved 300 participants from 25 nationalities, including people with dementia, care partners, clinicians, policymakers, researchers, and advocates for a 4-day, 40 km walk through the Camino de Santiago de Compostela, Spain. A 2-day symposium after the journey provided novel transdisciplinary and horizontal structures, deconstructing traditional hierarchies. The innovation of this initiative lies in its ability to merge a physical experience with knowledge exchange for diversifying individuals' understanding of dementia. It showcases the transformative potential of an immersive, embodied, and multi-experiential approach to address the complexities of dementia collaboratively. The initiative offers a scalable model to enhance understanding, decrease stigma, and promote more comprehensive and empathetic dementia care and research.
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Sexton CE, Bitan G, Bowles KR, Brys M, Buée L, Maina MB, Clelland CD, Cohen AD, Crary JF, Dage JL, Diaz K, Frost B, Gan L, Goate AM, Golbe LI, Hansson O, Karch CM, Kolb HC, La Joie R, Lee SE, Matallana D, Miller BL, Onyike CU, Quiroz YT, Rexach JE, Rohrer JD, Rommel A, Sadri‐Vakili G, Schindler SE, Schneider JA, Sperling RA, Teunissen CE, Weninger SC, Worley SL, Zheng H, Carrillo MC. Novel avenues of tau research. Alzheimers Dement 2024; 20:2240-2261. [PMID: 38170841 PMCID: PMC10984447 DOI: 10.1002/alz.13533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 01/05/2024]
Abstract
INTRODUCTION The pace of innovation has accelerated in virtually every area of tau research in just the past few years. METHODS In February 2022, leading international tau experts convened to share selected highlights of this work during Tau 2022, the second international tau conference co-organized and co-sponsored by the Alzheimer's Association, CurePSP, and the Rainwater Charitable Foundation. RESULTS Representing academia, industry, and the philanthropic sector, presenters joined more than 1700 registered attendees from 59 countries, spanning six continents, to share recent advances and exciting new directions in tau research. DISCUSSION The virtual meeting provided an opportunity to foster cross-sector collaboration and partnerships as well as a forum for updating colleagues on research-advancing tools and programs that are steadily moving the field forward.
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Affiliation(s)
| | - Gal Bitan
- Department of NeurologyDavid Geffen School of MedicineBrain Research InstituteMolecular Biology InstituteUniversity of California Los Angeles (UCLA)Los AngelesCaliforniaUSA
| | - Kathryn R. Bowles
- UK Dementia Research Institute at the University of EdinburghCentre for Discovery Brain SciencesUniversity of EdinburghEdinburghUK
| | | | - Luc Buée
- Univ LilleInsermCHU‐LilleLille Neuroscience and CognitionLabEx DISTALZPlace de VerdunLilleFrance
| | - Mahmoud Bukar Maina
- Sussex NeuroscienceSchool of Life SciencesUniversity of SussexFalmerUK
- Biomedical Science Research and Training CentreYobe State UniversityDamaturuNigeria
| | - Claire D. Clelland
- Memory and Aging CenterDepartment of NeurologyWeill Institute for NeurosciencesUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Ann D. Cohen
- University of PittsburghSchool of MedicineDepartment of Psychiatry and Alzheimer's disease Research CenterPittsburghPennsylvaniaUSA
| | - John F. Crary
- Departments of PathologyNeuroscience, and Artificial Intelligence & Human HealthIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Jeffrey L. Dage
- Department of NeurologyIndiana University School of MedicineIndianapolisIndianaUSA
| | | | - Bess Frost
- Sam & Ann Barshop Institute for Longevity & Aging Studies Glenn Biggs Institute for Alzheimer's & Neurodegenerative Disorders Department of Cell Systems and Anatomy University of Texas Health San AntonioSan AntonioTexasUSA
| | - Li Gan
- Helen and Robert Appel Alzheimer Disease Research InstituteFeil Family Brain and Mind Research InstituteWeill Cornell MedicineNew YorkNew YorkUSA
| | - Alison M Goate
- Department of Genetics & Genomic SciencesRonald M. Loeb Center for Alzheimer's diseaseIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Lawrence I. Golbe
- CurePSPIncNew YorkNew YorkUSA
- Rutgers Robert Wood Johnson Medical SchoolNew BrunswickNew JerseyUSA
| | - Oskar Hansson
- Clinical Memory Research UnitDepartment of Clinical Sciences MalmöLund UniversityLundSweden
| | - Celeste M. Karch
- Department of PsychiatryWashington University in St. LouisSt. LouisMissouriUSA
| | | | - Renaud La Joie
- Memory and Aging CenterDepartment of NeurologyWeill Institute for NeurosciencesUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Suzee E. Lee
- Memory and Aging CenterDepartment of NeurologyWeill Institute for NeurosciencesUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Diana Matallana
- Aging InstituteNeuroscience ProgramPsychiatry DepartmentSchool of MedicinePontificia Universidad JaverianaBogotáColombia
- Mental Health DepartmentHospital Universitario Fundaciòn Santa FeBogotaColombia
| | - Bruce L. Miller
- Memory and Aging CenterDepartment of NeurologyWeill Institute for NeurosciencesUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Psychiatry and Behavioral SciencesUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Chiadi U. Onyike
- Division of Geriatric Psychiatry and NeuropsychiatryJohns Hopkins University School of MedicineBaltimoreBaltimoreMarylandUSA
| | - Yakeel T. Quiroz
- Departments of Psychiatry and NeurologyMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Jessica E. Rexach
- Program in NeurogeneticsDepartment of NeurologyDavid Geffen School of MedicineUniversity of CaliforniaLos AngelesCaliforniaUSA
| | - Jonathan D. Rohrer
- Department of Neurodegenerative DiseaseDementia Research CentreUniversity College London Institute of Neurology, Queen SquareLondonUK
| | - Amy Rommel
- Rainwater Charitable FoundationFort WorthTexasUSA
| | - Ghazaleh Sadri‐Vakili
- Sean M. Healey &AMG Center for ALS at Mass GeneralMassachusetts General HospitalBostonMassachusettsUSA
| | - Suzanne E. Schindler
- Department of NeurologyWashington University School of MedicineSt. LouisMissouriUSA
| | | | - Reisa A. Sperling
- Center for Alzheimer Research and TreatmentBrigham and Women's HospitalMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Charlotte E. Teunissen
- Neurochemistry LaboratoryClinical Chemistry departmentAmsterdam NeuroscienceProgram NeurodegenerationAmsterdam University Medical CentersVrije Universiteit AmsterdamAmsterdamThe Netherlands
| | | | | | - Hui Zheng
- Huffington Center on AgingBaylor College of MedicineHoustonTexasUSA
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Shamu T, Egger M, Mudzviti T, Chimbetete C, Manasa J, Anderegg N. Body weight and blood pressure changes on dolutegravir-, efavirenz- or atazanavir-based antiretroviral therapy in Zimbabwe: a longitudinal study. J Int AIDS Soc 2024; 27:e26216. [PMID: 38332525 PMCID: PMC10853595 DOI: 10.1002/jia2.26216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 01/23/2024] [Indexed: 02/10/2024] Open
Abstract
INTRODUCTION Dolutegravir (DTG) is widely used for antiretroviral therapy (ART). We compared weight and blood pressure trends and examined the association between high blood pressure and weight gain among people living with HIV (PLHIV) switching to or starting DTG-based, efavirenz (EFV)-based and ritonavir-boosted atazanavir (ATV/r)-based ART in Zimbabwe. METHODS PLHIV aged 18 years or older who started or switched to DTG, EFV or ATV/r-based ART between January 2004 and June 2022 at Newlands Clinic in Harare, Zimbabwe, were eligible. Weight was measured at all visits (Seca floor scales); blood pressure only at clinician-led visits (Omron M2 sphygmomanometer). We used Bayesian additive models to estimate trends in weight gain and the proportion with high blood pressure (systolic >140 mmHg or diastolic >90 mmHg) in the first 2 years after starting or switching the regimen. Finally, we examined whether trends in the proportion with high blood pressure were related to weight change. RESULTS We analysed 99,969 weight and 35,449 blood pressure records from 9487 adults (DTG: 4593; EFV: 3599; ATV/r: 1295). At 24 months after starting or switching to DTG, estimated median weight gains were 4.54 kg (90% credibility interval 3.88-5.28 kg) in women and 3.71 kg (3.07-4.45 kg) in men, around twice that observed for ATV/r and over four-times the gain observed for EFV. Prevalence of high blood pressure among PLHIV receiving DTG-based ART increased from around 5% at baseline to over 20% at 24 months, with no change in PLHIV receiving EFV- or ATV/r-based ART. High blood pressure in PLHIV switching to DTG was associated with weight gain, with stronger increases in the proportion with high blood pressure for larger weight gains. CONCLUSIONS Among PLHIV starting ART or switching to a new regimen, DTG-based ART was associated with larger weight gains and a substantial increase in the prevalence of high blood pressure. Routine weight and blood pressure measurement and interventions to lower blood pressure could benefit PLHIV on DTG-based ART. Further studies are needed to elucidate the mechanisms and reversibility of these changes after discontinuation of DTG.
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Affiliation(s)
- Tinei Shamu
- Newlands ClinicHarareZimbabwe
- Institute of Social and Preventive MedicineUniversity of BernBernSwitzerland
- Graduate School of Health SciencesUniversity of BernBernSwitzerland
| | - Matthias Egger
- Institute of Social and Preventive MedicineUniversity of BernBernSwitzerland
- Centre for Infectious Disease Epidemiology and ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
- Population Health Sciences, Bristol Medical SchoolUniversity of BristolBristolUK
| | - Tinashe Mudzviti
- Newlands ClinicHarareZimbabwe
- Department of Pharmacy and Pharmaceutical SciencesUniversity of ZimbabweHarareZimbabwe
| | | | | | - Nanina Anderegg
- Institute of Social and Preventive MedicineUniversity of BernBernSwitzerland
- Centre for Infectious Disease Epidemiology and ResearchSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
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Lawal SA, Adedeji IA, Ogunniyi A, Henderson D. Social domains of poor mental health: A qualitative pilot study of community stakeholders' understanding and demarcation of mental illness and its interpretations in rural Nigeria. Health Sci Rep 2024; 7:e1922. [PMID: 38420202 PMCID: PMC10899201 DOI: 10.1002/hsr2.1922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/17/2024] [Accepted: 02/01/2024] [Indexed: 03/02/2024] Open
Abstract
Background and Aims Although previous studies on mental health/illness in Nigeria have explored knowledge and attitude of community members using quantitative approaches, few studies have engaged stakeholders within rural communities on the issue of mental illness using qualitative approaches. Community stakeholders play a critical role in influencing health behaviors. The objective of this pilot study was to explore community stakeholders' understanding and demarcation of mental illness, and its interpretations in a rural Nigerian town. This is with the aim of shaping stakeholders understanding of people when they experience mental distress within the community. Methods The study was conducted in Ijebu-Igbo town of Ogun State in south-west Nigeria. In-depth interviews were conducted among two religious' leaders: a Pastor and an Imam, a traditional healer, a medical doctor, and a registered nurse, and a focus group discussion was held in a church with members of its advisory committee. Results The findings showed that community stakeholders gave multiple interpretations of mental illness and many attribute mental illness to spiritual attack, ancestral curse, anger of the gods, and personal affliction (Ogun-Afowofa). This has been categorized as familial and individual attributes in this study which is part of the main themes derived. The study findings also show that the understanding of community members regarding the root causes of mental illness is somewhat vague based on their poor knowledge of mental illness. This is because of the various interpretations they gave to explain mental health is based on their cultural orientation, socialization, and belief system, and not based on any medical knowledge. Conclusion This pilot study was conducted to justify the main study. There is therefore a need for health education interventions to enlighten and educate community stakeholders with requisite knowledge for better understanding and interpretation of mental illness. Also, through mental health education interventions, community members will gain clarity on what mental health is and what it is not.
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Affiliation(s)
- Saheed A. Lawal
- Department of Public Health, School of Public and Allied HealthBabcock UniversityIlishan‐RemoOgun StateNigeria
| | - Isaac A. Adedeji
- Department of GerontologySimon Fraser UniversityBritish ColumbiaCanada
| | - Adesola Ogunniyi
- Department of Medicine, College of MedicineUniversity of IbadanIbadanNigeria
| | - David Henderson
- Department of Psychiatry, Boston University Medical CenterBoston UniversityBostonMassachusettsUSA
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Hartmann M, Nyblade L, Otticha S, Marton T, Agot K, Roberts ST. The development of a conceptual framework on PrEP stigma among adolescent girls and young women in sub-Saharan Africa. J Int AIDS Soc 2024; 27:e26213. [PMID: 38379129 PMCID: PMC10879468 DOI: 10.1002/jia2.26213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 01/17/2024] [Indexed: 02/22/2024] Open
Abstract
INTRODUCTION Stigma is a well-known barrier to HIV testing and treatment and is an emerging barrier to pre-exposure prophylaxis (PrEP) use. To guide future research, measurement and interventions, we developed a conceptual framework for PrEP stigma among adolescent girls and young women (AGYW) in sub-Saharan Africa, a priority population for PrEP. METHODS A literature review, expert consultations and focus group discussions (FGDs) were conducted to adapt the Health Stigma and Discrimination Framework, describing the stigmatization process nested within the socio-ecological framework. We reviewed all articles on PrEP stigma and on HIV, contraceptive or sexuality stigma among AGYW from 2009 to 2019. Expert consultations were conducted with 10 stigma or PrEP researchers and two Kenyan youth advisory boards to revise the framework. Finally, FGDs were conducted with AGYW PrEP users (4 FGDs; n = 20) and key influencers (14 FGDs; n = 72) in Kenya with the help of a Youth Research Team who aided in FGD conduct and results interpretation. Results from each phase were reviewed and the framework was updated to incorporate new and divergent findings. This was validated against an updated literature search from 2020 to 2023. RESULTS The conceptual framework identifies potential drivers, facilitators and manifestations of PrEP stigma, its outcomes and health impacts, and relevant intersecting stigmas. The main findings include: (1) PrEP stigma is driven by HIV, gender and sexuality stigmas, and low PrEP community awareness. (2) Stigma is facilitated by factors at multiple levels: policy (e.g. targeting of PrEP to high-risk populations), health systems (e.g. youth-friendly service availability), community (e.g. social capital) and individual (e.g. empowerment). (3) Similar to other stigmas, manifestations include labelling, violence and shame. (4) PrEP stigma results in decreased access to and acceptability of PrEP, limited social support and community resistance, which can impact mental health and decrease PrEP uptake and adherence. (5) Stigma may engender resilience by motivating AGYW to think of PrEP as an exercise in personal agency. CONCLUSIONS Our PrEP stigma conceptual framework highlights potential intervention targets at multiple levels in the stigmatization process. Its adoption would enable researchers to develop standardized measures and compare stigma across timepoints and populations as well as design and evaluate interventions.
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Affiliation(s)
- Miriam Hartmann
- Women's Global Health ImperativeRTI InternationalBerkeleyCaliforniaUSA
- Department of Global Public HealthKarolinska InstitutetStockholmSweden
| | - Laura Nyblade
- Women's Global Health ImperativeRTI InternationalBerkeleyCaliforniaUSA
| | | | - Tozoe Marton
- Women's Global Health ImperativeRTI InternationalBerkeleyCaliforniaUSA
| | - Kawango Agot
- Impact Research Development OrganizationKisumuKenya
| | - Sarah T. Roberts
- Women's Global Health ImperativeRTI InternationalBerkeleyCaliforniaUSA
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Toska E, Zhou S, Laurenzi CA, Saal W, Rudgard W, Wittesaele C, Langwenya N, Jochim J, Banougnin BH, Gulaid L, Armstrong A, Sherman G, Edun O, Sherr L, Cluver L. Healthcare provisions associated with multiple HIV-related outcomes among adolescent girls and young women living with HIV in South Africa: a cross-sectional study. J Int AIDS Soc 2024; 27:e26212. [PMID: 38332518 PMCID: PMC10853575 DOI: 10.1002/jia2.26212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 01/16/2024] [Indexed: 02/10/2024] Open
Abstract
INTRODUCTION Adolescent girls and young women (AGYW) living with HIV experience poor HIV outcomes and high rates of unintended pregnancy. Little is known about which healthcare provisions can optimize their HIV-related outcomes, particularly among AGYW mothers. METHODS Eligible 12- to 24-year-old AGYW living with HIV from 61 health facilities in a South African district completed a survey in 2018-2019 (90% recruited). Analysing surveys and medical records from n = 774 participants, we investigated associations of multiple HIV-related outcomes (past-week adherence, consistent clinic attendance, uninterrupted treatment, no tuberculosis [TB] and viral suppression) with seven healthcare provisions: no antiretroviral therapy (ART) stockouts, kind and respectful providers, support groups, short travel time, short waiting time, confidentiality, and safe and affordable facilities. Further, we compared HIV-related outcomes and healthcare provisions between mothers (n = 336) and nulliparous participants (n = 438). Analyses used multivariable regression models, accounting for multiple outcomes. RESULTS HIV-related outcomes were poor, especially among mothers. In multivariable analyses, two healthcare provisions were "accelerators," associated with multiple improved outcomes, with similar results among mothers. Safe and affordable facilities, and kind and respectful staff were associated with higher predicted probabilities of HIV-related outcomes (p<0.001): past-week adherence (62% when neither accelerator was reported to 87% with both accelerators reported), clinic attendance (71%-89%), uninterrupted ART treatment (57%-85%), no TB symptoms (49%-70%) and viral suppression (60%-77%). CONCLUSIONS Accessible and adolescent-responsive healthcare is critical to improving HIV-related outcomes, reducing morbidity, mortality and onward HIV transmission among AGYW. Combining these provisions can maximize benefits, especially for AGYW mothers.
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Affiliation(s)
- Elona Toska
- Centre for Social Science ResearchUniversity of Cape TownCape TownSouth Africa
- Department of Social Policy and InterventionUniversity of OxfordOxfordUK
| | - Siyanai Zhou
- Centre for Social Science ResearchUniversity of Cape TownCape TownSouth Africa
- Division of Social and Behavioural SciencesFaculty of Health SciencesUniversity of Cape TownCape TownSouth Africa
| | - Christina A. Laurenzi
- Institute for Life Course Health ResearchDepartment of Global HealthFaculty of Medicine and Health SciencesStellenbosch UniversityCape TownSouth Africa
| | - Wylene Saal
- Centre for Social Science ResearchUniversity of Cape TownCape TownSouth Africa
| | - William Rudgard
- Department of Social Policy and InterventionUniversity of OxfordOxfordUK
| | - Camille Wittesaele
- Department of Infectious Disease EpidemiologyLondon School of Hygiene & Tropical MedicineLondonUK
| | | | - Janina Jochim
- Department of Social Policy and InterventionUniversity of OxfordOxfordUK
| | | | - Laurie Gulaid
- UNICEF Eastern and Southern Africa Office (UNICEF‐ESARO)NairobiKenya
| | - Alice Armstrong
- UNICEF Eastern and Southern Africa Office (UNICEF‐ESARO)NairobiKenya
| | - Gayle Sherman
- National Institute for Communicable DiseasesJohannesburgSouth Africa
- Department of Paediatrics and Child HealthFaculty of Health SciencesUniversity of the WitwatersrandJohannesburgSouth Africa
| | - Olanrewaju Edun
- MRC Centre for Global Infectious Disease AnalysisSchool of Public HealthImperial College LondonLondonUK
| | - Lorraine Sherr
- Institute for Global HealthUniversity College LondonLondonUK
| | - Lucie Cluver
- Division of Social and Behavioural SciencesFaculty of Health SciencesUniversity of Cape TownCape TownSouth Africa
- Department of Psychiatry and Mental HealthUniversity of Cape TownCape TownSouth Africa
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Beidelman ET, Rosenberg M, Wade AN, Crowther NJ, Kalbaugh CA. Prevalence of and Risk Factors for Peripheral Artery Disease in Rural South Africa: A Cross-Sectional Analysis of the HAALSI Cohort. J Am Heart Assoc 2024; 13:e031780. [PMID: 38156447 PMCID: PMC10863815 DOI: 10.1161/jaha.123.031780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 11/16/2023] [Indexed: 12/30/2023]
Abstract
BACKGROUND The burden of peripheral artery disease (PAD) is increasing in low- and middle-income countries. Existing literature from sub-Saharan Africa is limited and lacks population-representative estimates. We estimated the burden and risk factor profile of PAD for a rural South African population. METHODS AND RESULTS We used data from 1883 participants from a rural, low-income cohort of South African adults aged 40 to 69 years with available ankle-brachial index measurements. We defined clinical PAD as ankle-brachial index ≤0.90 or >1.40, and borderline PAD as ankle-brachial index >0.90 and ≤1.00. We compared the distribution of sociodemographic variables, biomarkers, and comorbidities across PAD classifications. To identify associated factors, we calculated unadjusted and age-sex-adjusted prevalence ratios (PRs) with log-binomial models. Overall, 6.6% (95% CI, 5.6-7.7) of the sample met the diagnostic criteria for clinical PAD, while 44.7% (95% CI, 42.4-47.0) met the diagnostic criteria for borderline PAD. Age (PR: 1.9 [95% CI, 1.2-3.1] for ages 50-59 years compared with 40-49 years; PR: 2.5 [95% CI, 1.5-4.0] for ages 60-69 years compared with 40-49 years); diagnosed hypertension (PR: 1.53 [95% CI, 1.08-2.17]); and C-reactive protein (PR: 1.08 [95% CI, 1.03-1.12]) were associated with increased prevalence of clinical PAD. All other examined factors were not significantly associated with clinical PAD. CONCLUSIONS We found high PAD prevalence for younger age groups compared with previous research and a lack of statistical evidence for the influence of traditional risk factors for this rural, low-income population. Future research should focus on identifying the underlying risk factors for PAD in this setting. South African policymakers and clinicians should consider expanded screening for early PAD detection in rural areas.
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Affiliation(s)
- Erika Teresa Beidelman
- Department of Epidemiology and BiostatisticsIndiana University Bloomington School of Public HealthBloomingtonINUSA
| | - Molly Rosenberg
- Department of Epidemiology and BiostatisticsIndiana University Bloomington School of Public HealthBloomingtonINUSA
| | - Alisha N. Wade
- MRC/Wits Rural Public Health and Health Transitions Research Unit, School of Public HealthUniversity of the Witwatersrand Johannesburg, South Africa Faculty of Health SciencesJohannesburgSouth Africa
- Division of Endocrinology, Diabetes and MetabolismPerelman School of Medicine, University of PennsylvaniaPhiladelphiaPAUSA
| | - Nigel J. Crowther
- Department of Chemical PathologyNational Health Laboratory Service, University of the Witwatersrand Johannesburg Faculty of Health SciencesJohannesburgSouth Africa
| | - Corey A. Kalbaugh
- Department of Epidemiology and BiostatisticsIndiana University Bloomington School of Public HealthBloomingtonINUSA
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Jankowski CM, Konigsberg IR, Wilson MP, Sun J, Brown TT, Julian CG, Erlandson KM. Skeletal muscle DNA methylation: Effects of exercise and HIV. Aging Cell 2024; 23:e14025. [PMID: 37920126 PMCID: PMC10776118 DOI: 10.1111/acel.14025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 10/13/2023] [Accepted: 10/15/2023] [Indexed: 11/04/2023] Open
Abstract
Aging, human immunodeficiency virus (HIV) infection, and antiretroviral therapy modify the epigenetic profile and function of cells and tissues, including skeletal muscle (SkM). In some cells, accelerated epigenetic aging begins very soon after the initial HIV infection, potentially setting the stage for the early onset of frailty. Exercise imparts epigenetic modifications in SkM that may underpin some health benefits, including delayed frailty, in people living with HIV (PWH). In this first report of exercise-related changes in SkM DNA methylation among PWH, we investigated the impact of 24 weeks of aerobic and resistance exercise training on SkM (vastus lateralis) DNA methylation profiles and epigenetic age acceleration (EAA) in older, virally suppressed PWH (n = 12) and uninfected controls (n = 18), and associations of EAA with physical function at baseline. We identified 983 differentially methylated positions (DMPs) in PWH and controls at baseline and 237 DMPs after training. The influence of HIV serostatus on SkM methylation was more pronounced than that of exercise training. There was little overlap in the genes associated with the probes most significantly differentiated by exercise training within each group. Baseline EAA (mean ± SD) was similar between PWH (-0.4 ± 2.5 years) and controls (0.2 ± 2.6 years), and the exercise effect was not significant (p = 0.79). EAA and physical function at baseline were not significantly correlated (all p ≥ 0.10). This preliminary investigation suggests HIV-specific epigenetic adaptations in SkM with exercise training but confirmation in a larger study that includes transcriptomic analysis is warranted.
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Affiliation(s)
| | - Iain R. Konigsberg
- Department of Biomedical InformaticsUniversity of Colorado Anschutz Medical CampusColoradoAuroraUSA
| | - Melissa P. Wilson
- Division of Infectious Diseases, Department of MedicineUniversity of Colorado Anschutz Medical CampusColoradoAuroraUSA
| | - Jing Sun
- Department of EpidemiologyJohns Hopkins Bloomberg School of Public HealthMarylandBaltimoreUSA
| | - Todd T. Brown
- Division of Endocrinology, Diabetes, & Metabolism, Department of MedicineJohns Hopkins UniversityMarylandBaltimoreUSA
| | - Colleen G. Julian
- Department of Biomedical InformaticsUniversity of Colorado Anschutz Medical CampusColoradoAuroraUSA
| | - Kristine M. Erlandson
- Division of Infectious Diseases, Department of MedicineUniversity of Colorado Anschutz Medical CampusColoradoAuroraUSA
- Division of Geriatric Medicine, Department of MedicineUniversity of Colorado Anschutz Medical CampusColoradoAuroraUSA
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11
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Julius P, Kang G, Siyumbwa S, Musumali J, Tso FY, Ngalamika O, Kaile T, Maate F, Moonga P, West JT, Angeletti P, Wood C. Co-infection and co-localization of Kaposi sarcoma-associated herpesvirus and Epstein-Barr virus in HIV-associated Kaposi sarcoma: a case report. Front Cell Infect Microbiol 2023; 13:1270935. [PMID: 37928187 PMCID: PMC10623342 DOI: 10.3389/fcimb.2023.1270935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/04/2023] [Indexed: 11/07/2023] Open
Abstract
Kaposi sarcoma (KS), a multifocal vascular neoplasm frequently observed in HIV-positive individuals, primarily affects the skin, mucous membranes, visceral organs, and lymph nodes. KS is associated primarily with Kaposi sarcoma-associated herpesvirus (KSHV) infection. In this case report, we present a rare occurrence of co-infection and co-localization of KSHV and Epstein-Barr virus (EBV) in KS arising from the conjunctiva, which, to our knowledge, has not been reported previously. Immunohistochemistry (IHC), DNA polymerase chain reaction (PCR), and EBV-encoded RNA in situ hybridization (EBER-ISH) were utilized to demonstrate the presence of KSHV and EBV infection in the ocular KS lesion. Nearly all KSHV-positive cells displayed co-infection with EBV. In addition, the KS lesion revealed co-localization of KSHV Latency-Associated Nuclear Antigen (LANA) and EBV Epstein Barr virus Nuclear Antigen-1 (EBNA1) by multi-colored immunofluorescence staining with different anti-EBNA1 antibodies, indicating the possibility of interactions between these two gamma herpesviruses within the same lesion. Additional study is needed to determine whether EBV co-infection in KS is a common or an opportunistic event that might contribute to KS development and progression.
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Affiliation(s)
- Peter Julius
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Guobin Kang
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Stepfanie Siyumbwa
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Jane Musumali
- University Teaching Hospitals, Eye Hospital, Ministry of Health, Lusaka, Zambia
| | - For Yue Tso
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Owen Ngalamika
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Trevor Kaile
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Fred Maate
- Department of Pathology and Microbiology, School of Medicine, University of Zambia, Lusaka, Zambia
| | - Phyllis Moonga
- University Teaching Hospitals, Eye Hospital, Ministry of Health, Lusaka, Zambia
| | - John T. West
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
| | - Peter Angeletti
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, United States
| | - Charles Wood
- Department of Interdisciplinary Oncology, Louisiana State University Health Sciences Center – New Orleans, New Orleans, LA, United States
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12
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Powers KA, Mutale W, Rosenberg NE, Graybill LA, Mollan KR, Freeborn K, Saidi F, Maman S, Mulenga PL, Jahn A, Nyirenda RK, Stringer JSA, Vermund SH, Chi BH. Combination HIV prevention during pregnancy and the post-partum period in Malawi and Zambia: a mathematical modelling analysis. J Int AIDS Soc 2023; 26:e26128. [PMID: 37403422 PMCID: PMC10320044 DOI: 10.1002/jia2.26128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 05/25/2023] [Indexed: 07/06/2023] Open
Abstract
INTRODUCTION Despite widespread success in reducing vertical HIV transmission, most antenatal care (ANC) programmes in eastern and southern Africa have not emphasized primary prevention of maternal HIV acquisition during pregnancy and lactation/breastfeeding. We hypothesized that combination HIV prevention interventions initiated alongside ANC could substantially reduce maternal HIV incidence. METHODS We constructed a multi-state model describing male-to-female HIV transmission in steady heterosexual partnerships during pregnancy and lactation/breastfeeding, with initial conditions based on population distribution estimates for Malawi and Zambia in 2020. We modelled individual and joint increases in three HIV prevention strategies at or soon after ANC initiation: (1) HIV testing of male partners, resulting in HIV diagnosis and less condomless sex among those with previously undiagnosed HIV; (2) initiation (or re-initiation) of suppressive antiretroviral therapy (ART) for male partners with diagnosed but unsuppressed HIV; and (3) adherent pre-exposure prophylaxis (PrEP) for HIV-negative female ANC patients with HIV-diagnosed or unknown-status male partners. We estimated the percentage of within-couple, male-to-female HIV transmissions that could be averted during pregnancy and lactation/breastfeeding with these strategies, relative to base-case conditions in which 45% of undiagnosed male partners become newly HIV diagnosed via testing, 75% of male partners with diagnosed but unsuppressed HIV initiate/re-initiate ART and 0% of female ANC patients start PrEP. RESULTS Increasing uptake of any single strategy by 20 percentage points above base-case levels averted 10%-11% of maternal HIV acquisitions during pregnancy and lactation/breastfeeding in the model. Joint uptake increases of 20 percentage points in two interventions averted an estimated 19%-23% of transmissions, and with a 20-percentage-point increase in uptake of all three interventions, 29% were averted. Strategies achieving 95% male testing, 90% male ART initiation/re-initiation and 40% female PrEP use reduced incident infections by 45%. CONCLUSIONS Combination HIV prevention strategies provided alongside ANC and sustained through the post-partum period could substantially reduce maternal HIV incidence during pregnancy and lactation/breastfeeding in eastern and southern Africa.
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Affiliation(s)
- Kimberly A. Powers
- Department of Epidemiology, Gillings School of Global Public HealthThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | | | - Nora E. Rosenberg
- Department of Health Behavior, Gillings School of Global Public HealthThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Lauren A. Graybill
- Department of Epidemiology, Gillings School of Global Public HealthThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Katie R. Mollan
- Department of Epidemiology, Gillings School of Global Public HealthThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Kellie Freeborn
- Department of Obstetrics and Gynecology, School of MedicineThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Friday Saidi
- Department of Obstetrics and Gynecology, School of MedicineThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
- UNC Project MalawiLilongweMalawi
| | - Suzanne Maman
- Department of Health Behavior, Gillings School of Global Public HealthThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | | | - Andreas Jahn
- Department of HIV and AIDSMalawi Ministry of HealthLilongweMalawi
- International Training and Education Center for Health (I‐TECH), Department of Global HealthUniversity of WashingtonSeattleWashingtonUSA
| | - Rose K. Nyirenda
- Department of HIV and AIDSMalawi Ministry of HealthLilongweMalawi
| | - Jeffrey S. A. Stringer
- Department of Obstetrics and Gynecology, School of MedicineThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Sten H. Vermund
- Department of Epidemiology of Microbial DiseasesYale School of Public HealthNew HavenConnecticutUSA
| | - Benjamin H. Chi
- Department of Obstetrics and Gynecology, School of MedicineThe University of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
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13
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Restar AJ, Quilantang MI, Wickersham J, Adia A, Guigayoma J, Bermudez AN, Galárraga O, Flores DD, Cu‐Uvin S, Nazareno J, Operario D, Sison O. Predictors of PrEP awareness, PrEP discussion and interest in long-acting injectable PrEP among Filipina transfeminine adults. J Int AIDS Soc 2023; 26:e26080. [PMID: 37306123 PMCID: PMC10258862 DOI: 10.1002/jia2.26080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 03/08/2023] [Indexed: 06/13/2023] Open
Abstract
INTRODUCTION Transfeminine adults are impacted by the HIV epidemic in the Philippines, and newly approved modalities of pre-exposure prophylaxis (PrEP), including long-acting injectable (LAI-PrEP), could be beneficial for this group. To inform implementation, we analysed PrEP awareness, discussion and interest in taking LAI-PrEP among Filipina transfeminine adults. METHODS We utilized secondary data from the #ParaSaAtin survey that sampled Filipina transfeminine adults (n = 139) and conducted a series of multivariable logistic regressions with lasso selection to explore factors independently associated with PrEP outcomes, including awareness, discussion with trans friends and interest in LAI-PrEP. RESULTS Overall, 53% of Filipina transfeminine respondents were aware of PrEP, 39% had discussed PrEP with their trans friends and 73% were interested in LAI-PrEP. PrEP awareness was associated with being non-Catholic (p = 0.017), having previously been HIV tested (p = 0.023), discussing HIV services with a provider (p<0.001) and having high HIV knowledge (p = 0.021). Discussing PrEP with friends was associated with older age (p = 0.040), having experienced healthcare discrimination due to transgender identity (p = 0.044), having HIV tested (p = 0.001) and having discussed HIV services with a provider (p < 0.001). Very interested in LAI-PrEP was associated with living in Central Visayas (p = 0.045), having discussed HIV services with a provider (p = 0.001) and having discussed HIV services with a sexual partner (p = 0.008). CONCLUSIONS Implementing LAI-PrEP in the Philippines requires addressing systemic improvements across personal, interpersonal, social and structural levels in healthcare access, including efforts to create healthcare settings and environments with providers who are trained and competent in transgender health and can address the social and structural drivers of trans health inequities, including HIV and barriers to LAI-PrEP.
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Affiliation(s)
- Arjee Javellana Restar
- Department of EpidemiologyUniversity of Washington School of Public HealthSeattleWashingtonUSA
- Department of Behavioral and Social Sciences, Research Education Institute for Diverse Scholars (REIDS)Yale University School of Public HealthNew HavenConnecticutUSA
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
| | - Ma Irene Quilantang
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
- Department of Behavioral and Social SciencesBrown University School of Public HealthProvidenceRhode IslandUSA
- Department of Behavioral SciencesUniversity of Philippines‐ManilaManilaPhilippines
| | - Jeffrey Wickersham
- Department of Behavioral and Social Sciences, Research Education Institute for Diverse Scholars (REIDS)Yale University School of Public HealthNew HavenConnecticutUSA
- Department of Internal MedicineYale University School of MedicineNew HavenConnecticutUSA
| | - Alex Adia
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
- Division of Health Policy and ManagementUniversity of California – Berkeley School of Public HealthBerkeleyCaliforniaUSA
| | - John Guigayoma
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
- Department of Behavioral and Social SciencesBrown University School of Public HealthProvidenceRhode IslandUSA
| | - Amiel Nazer Bermudez
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
- Department of EpidemiologyBrown University School of Public HealthProvidenceRhode IslandUSA
- Department of Epidemiology and BiostatisticsUniversity of Philippines‐ManilaManilaPhilippines
| | - Omar Galárraga
- Department of Health Services, Policy, and PracticeBrown University School of Public HealthProvidenceRhode IslandUSA
| | - Dalmacio Dennis Flores
- Department of Behavioral and Social Sciences, Research Education Institute for Diverse Scholars (REIDS)Yale University School of Public HealthNew HavenConnecticutUSA
- Department of Family and Community HealthUniversity of Pennsylvania School of NursingPhiladelphiaPennsylvaniaUSA
| | - Susan Cu‐Uvin
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
- Department of Behavioral and Social SciencesBrown University School of Public HealthProvidenceRhode IslandUSA
| | - Jennifer Nazareno
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
- Department of Behavioral and Social SciencesBrown University School of Public HealthProvidenceRhode IslandUSA
| | - Don Operario
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
- Department of Behavioral, Social, and Health Education SciencesEmory University Rollins School of Public HealthAtlantaGeorgiaUSA
| | - Olivia Sison
- Philippines Health Initiative for Research, Service & Training (PHIRST)Brown University School of Public HealthProvidenceRhode IslandUSA
- Department of EpidemiologyBrown University School of Public HealthProvidenceRhode IslandUSA
- Institute of Clinical Epidemiology, National Institutes of HealthUniversity of Philippines‐ManilaManilaPhilippines
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Steventon Roberts KJ, Smith C, Toska E, Cluver L, Wittesaele C, Langwenya N, Shenderovich Y, Saal W, Jochim J, Chen‐Charles J, Marlow M, Sherr L. Exploring the cognitive development of children born to adolescent mothers in South Africa. Infant Child Dev 2023; 32:e2408. [PMID: 38439906 PMCID: PMC10909423 DOI: 10.1002/icd.2408] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/27/2023] [Accepted: 02/04/2023] [Indexed: 03/11/2023]
Abstract
This study explores the cognitive development of children born to adolescent mothers within South Africa compared to existing reference data, and explores development by child age bands to examine relative levels of development. Cross-sectional analyses present data from 954 adolescents (10-19 years) and their first-born children (0-68 months). All adolescents completed questionnaires relating to themselves and their children, and standardized child cognitive assessments (Mullen Scales of Early Learning) were undertaken. Cognitive development scores of the sample were lower than USA reference population scores and relative performance compared to the reference population was found to decline with increasing child age. When compared to children born to adult mothers in the sub-Saharan African region, children born to adolescent mothers (human immunodeficiency virus [HIV] unexposed; n = 724) were found to have lower cognitive development scores. Findings identify critical periods of development where intervention may be required to bolster outcomes for children born to adolescent mothers. Highlights An exploration of the cognitive development of children born to adolescent mothers within South Africa utilizing the Mullen Scales of Early Learning.Cognitive development scores of children born to adolescent mothers within South Africa were lower compared to USA norm reference data and declined with child age.Previous studies utilizing the Mullen Scales of Early Learning within sub-Saharan Africa were summarized, and comparisons were made with the current sample.Findings highlight a potential risk of developmental delay among children born to adolescent mothers compared to children of adult mothers in the sub-Saharan African region.
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Affiliation(s)
- Kathryn J. Steventon Roberts
- Department of Social Policy and InterventionUniversity of OxfordUK
- Institute for Global HealthUniversity College LondonUK
| | - Colette Smith
- Institute for Global HealthUniversity College LondonUK
| | - Elona Toska
- Department of Social Policy and InterventionUniversity of OxfordUK
- Centre for Social Science ResearchUniversity of Cape TownSouth Africa
- Department of SociologyUniversity of Cape TownSouth Africa
| | - Lucie Cluver
- Department of Social Policy and InterventionUniversity of OxfordUK
- Department of Psychiatry and Mental HealthUniversity of Cape TownSouth Africa
| | - Camille Wittesaele
- Department of Social Policy and InterventionUniversity of OxfordUK
- London School of Hygiene and Tropical MedicineUK
| | | | - Yulia Shenderovich
- Department of Social Policy and InterventionUniversity of OxfordUK
- Wolfson Centre for Young People's Mental HealthCardiff UniversityUK
- Centre for the Development and Evaluation of Complex Interventions for Public Health Improvement (DECIPHer), School of Social SciencesCardiff UniversityUK
| | - Wylene Saal
- School of HumanitiesSol Plaatje UniversitySouth Africa
| | - Janina Jochim
- Department of Social Policy and InterventionUniversity of OxfordUK
| | | | - Marguerite Marlow
- Institute of Life Course Health ResearchStellenbosch UniversitySouth Africa
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Neumann RB, Paredes Fernández S, Andrews L, Alarcón JA. Influence of Water Hyacinth ( Eichhornia crassipes) on Concentration and Distribution of Escherichia coli in Water Surrounding an Informal Floating Community in Iquitos, Peru. Geohealth 2023; 7:e2022GH000768. [PMID: 37091292 PMCID: PMC10121155 DOI: 10.1029/2022gh000768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/10/2023] [Accepted: 04/11/2023] [Indexed: 05/03/2023]
Abstract
Floating communities exist throughout the world. Many live on water with a high pathogen load due to difficulties associated with sewage management. In Claverito, an informal floating community in Iquitos, Peru, we conducted a controlled experiment to test the ability of water hyacinth (Eichhornia crassipes) to remove Escherichia coli from water. When river E. coli concentrations were at or below ∼1,500 CFU 100 mL-1, water hyacinth reduced shallow concentrations (8 cm depth) down to levels deemed safe by U.S. EPA for recreational use. Above this threshold, plants were able to reduce E. coli levels within shallow water, but not down to "safe" levels. At deeper depths (>25 cm), there was evidence that plants increased E. coli concentrations. Water hyacinth removed E. coli from shallow water by providing a surface (i.e., submerged roots) onto which E. coli sorbed and by protecting organisms that can potentially consume E. coli. Unfortunately, because of root association, the total E. coli load within the water column was greater with water hyacinth present. The use of water hyacinth to keep surface water around floating communities low in E. coli could be beneficial as this is the water layer with which people most likely interact. Aquatic vegetation naturally proliferates in and around Claverito. While this study was based on curating aquatic plants in order to achieve a water-quality outcome, it nonetheless supports concrete actions for Claverito residents under non-curated conditions, which are outlined at the end of the manuscript.
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16
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Ward C, Brown GD, Oleson JJ. An individual level infectious disease model in the presence of uncertainty from multiple, imperfect diagnostic tests. Biometrics 2023; 79:426-436. [PMID: 34636415 PMCID: PMC8653294 DOI: 10.1111/biom.13579] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/29/2021] [Accepted: 10/05/2021] [Indexed: 11/28/2022]
Abstract
Bayesian compartmental infectious disease models yield important inference on disease transmission by appropriately accounting for the dynamics and uncertainty of infection processes. In addition to estimating transition probabilities and reproductive numbers, these statistical models allow researchers to assess the probability of disease risk and quantify the effectiveness of interventions. These infectious disease models rely on data collected from all individuals classified as positive based on various diagnostic tests. In infectious disease testing, however, such procedures produce both false-positives and false-negatives at varying rates depending on the sensitivity and specificity of the diagnostic tests being used. We propose a novel Bayesian spatio-temporal infectious disease modeling framework that accounts for the additional uncertainty in the diagnostic testing and classification process that provides estimates of the important transmission dynamics of interest to researchers. The method is applied to data on the 2006 mumps epidemic in Iowa, in which over 6,000 suspected mumps cases were tested using a buccal or oral swab specimen, a urine specimen, and/or a blood specimen. Although all procedures are believed to have high specificities, the sensitivities can be low and vary depending on the timing of the test as well as the vaccination status of the individual being tested.
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Affiliation(s)
- Caitlin Ward
- Department of BiostatisticsUniversity of IowaIowa CityIowaUSA
| | - Grant D. Brown
- Department of BiostatisticsUniversity of IowaIowa CityIowaUSA
| | - Jacob J. Oleson
- Department of BiostatisticsUniversity of IowaIowa CityIowaUSA
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Thorp M, Ayieko J, Hoffman RM, Balakasi K, Camlin CS, Dovel K. Mobility and HIV care engagement: a research agenda. J Int AIDS Soc 2023; 26:e26058. [PMID: 36943731 PMCID: PMC10029995 DOI: 10.1002/jia2.26058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 01/10/2023] [Indexed: 03/23/2023] Open
Abstract
INTRODUCTION Mobility is common and an essential livelihood strategy in sub-Saharan Africa (SSA). Mobile people suffer worse outcomes at every stage of the HIV care cascade compared to non-mobile populations. Definitions of mobility vary widely, and research on the role of temporary mobility (as opposed to permanent migration) in HIV treatment outcomes is often lacking. In this article, we review the current landscape of mobility and HIV care research to identify what is already known, gaps in the literature, and recommendations for future research. DISCUSSION Mobility in SSA is closely linked to income generation, though caregiving, climate change and violence also contribute to the need to move. Mobility is likely to increase in the coming decades, both due to permanent migration and increased temporary mobility, which is likely much more common. We outline three central questions regarding mobility and HIV treatment outcomes in SSA. First, it is unclear what aspects of mobility matter most for HIV care outcomes and if high-risk mobility can be identified or predicted, which is necessary to facilitate targeted interventions for mobile populations. Second, it is unclear what groups are most vulnerable to mobility-associated treatment interruption and other adverse outcomes. And third, it is unclear what interventions can improve HIV treatment outcomes for mobile populations. CONCLUSIONS Mobility is essential for people living with HIV in SSA. HIV treatment programmes and broader health systems must understand and adapt to human mobility, both to promote the rights and welfare of mobile people and to end the HIV pandemic.
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Affiliation(s)
- Marguerite Thorp
- Division of Infectious DiseasesDavid Geffen School of MedicineUniversity of California Los AngelesLos AngelesCaliforniaUSA
| | - James Ayieko
- Center for Microbiology ResearchKenya Medical Research InstituteKisumuKenya
| | - Risa M. Hoffman
- Division of Infectious DiseasesDavid Geffen School of MedicineUniversity of California Los AngelesLos AngelesCaliforniaUSA
| | | | - Carol S. Camlin
- Department of ObstetricsGynecology & Reproductive SciencesUniversity of California San FranciscoSan FranciscoCaliforniaUSA
- Center for AIDS Prevention StudiesDepartment of MedicineUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Kathryn Dovel
- Division of Infectious DiseasesDavid Geffen School of MedicineUniversity of California Los AngelesLos AngelesCaliforniaUSA
- Partners in HopeLilongweMalawi
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Hampanda KM, Pelowich K, Freeborn K, Graybill LA, Mutale W, Jones KR, Saidi F, Kumwenda A, Kasaro M, Rosenberg NE, Chi BH. Strategies to increase couples HIV testing and counselling in sub-Saharan Africa: a systematic review. J Int AIDS Soc 2023; 26:e26075. [PMID: 36929284 PMCID: PMC10020817 DOI: 10.1002/jia2.26075] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 02/23/2023] [Indexed: 03/18/2023] Open
Abstract
INTRODUCTION Couple HIV testing and counselling (CHTC) is associated with measurable benefits for HIV prevention and treatment. However, the uptake remains limited in much of sub-Saharan Africa, despite an expanded range of strategies designed to promote access. METHODS Following PRIMSA guidelines, we conducted a systematic review to characterize CHTC uptake strategies. Five databases were searched. Full-text articles were included if they were: conducted in sub-Saharan Africa during the study period (1980-2019), targeted heterosexual couples, reported at least one strategy to promote CHTC and provided a quantifiable measure of CHTC uptake. After the initial and full-text screening, key features of the studies were abstracted and synthesized. RESULTS Of the 6188 unique records found in our search, 365 underwent full-text review with 29 distinct studies included and synthesized. Most studies recruited couples through antenatal care (n = 11) or community venues (n = 8) and used provider-based HIV testing (n = 25). The primary demand creation strategies included home-based CHTC (n = 7); integration of CHTC into clinical settings (n = 4); distribution of HIV self-testing kits (n = 4); verbal or written invitations (n = 4); community recruiters (n = 3); partner tracing (n = 2); relationship counselling (n = 2); financial incentives (n = 1); group education with CHTC coupons (n = 1); and HIV testing at other community venues (n = 1). CHTC uptake ranged from negligible to nearly universal. DISCUSSION We thematically categorized a diverse range of strategies with varying levels of intensity and resources used across sub-Saharan Africa to promote CHTC. Offering CHTC within couples' homes was the most common approach, followed by the integration of CHTC into clinical settings. Due to heterogeneity in study characteristics, we were unable to compare the effectiveness across studies, but several trends were observed, including the high prevalence of CHTC promotion strategies in antenatal settings and the promising effects of home-based CHTC, distribution of HIV self-tests and integration of CHTC into routine health services. Since 2019, an updated literature search found that combining partner notification and secondary distribution of HIV self-test kits may be an additionally effective CHTC strategy. CONCLUSIONS There are many effective, feasible and scalable approaches to promote CHTC that should be considered by national programmes according to local needs, cultural context and available resources.
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Affiliation(s)
- Karen M. Hampanda
- Department of Obstetrics and GynecologyUniversity of Colorado Anschutz Medical CampusAuroraColoradoUSA
- Center for Global HealthUniversity of Colorado Anschutz Medical CampusAuroraColoradoUSA
| | - Krysta Pelowich
- Center for Global HealthUniversity of Colorado Anschutz Medical CampusAuroraColoradoUSA
| | - Kellie Freeborn
- Department of Obstetrics and GynecologySchool of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Lauren A. Graybill
- Department of Obstetrics and GynecologySchool of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
- Department of EpidemiologyGillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Wilbroad Mutale
- Department of Health PolicySchool of Public HealthUniversity of ZambiaLusakaZambia
| | - Katelyn R. Jones
- Department of Health BehaviorGillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | | | - Andrew Kumwenda
- Department of Obstetrics and GynecologySchool of MedicineUniversity of ZambiaLusakaZambia
| | - Margaret Kasaro
- Department of Obstetrics and GynecologySchool of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
- UNC Global Projects ZambiaLusakaZambia
| | - Nora E. Rosenberg
- Department of Health BehaviorGillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Benjamin H. Chi
- Department of Obstetrics and GynecologySchool of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
- Department of EpidemiologyGillings School of Global Public HealthUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
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Chowdhury F, Akter A, Bhuiyan TR, Biswas R, Firoj MG, Tauheed I, Harris JB, Larocque RC, Ross AG, McMillan NAJ, Charles RC, Ryan ET, Calderwood SB, Qadri F. Long-term sialidase-specific immune responses after natural infection with cholera: Findings from a longitudinal cohort study in Bangladesh. Front Immunol 2022; 13:1067737. [PMID: 36618409 PMCID: PMC9813220 DOI: 10.3389/fimmu.2022.1067737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Background Immune responses that target sialidase occur following natural cholera and have been associated with protection against cholera. Sialidase is a neuraminidase that facilitates the binding of cholera toxin (CT) to intestinal epithelial cells. Despite this, little is known about age-related sialidase-specific immune responses and the impact of nutritional status and co-infection on sialidase-specific immunity. Methods We enrolled 50 culture-confirmed Vibrio cholerae O1 cholera cases presenting to the icddr,b Dhaka hospital with moderate to severe dehydration. We evaluated antibody responses out to 18 months (day 540) following cholera. We assessed immune responses targeting sialidase, lipopolysaccharide (LPS), cholera toxin B subunit (CtxB), and vibriocidal responses. We also explored the association of sialidase-specific immune responses to nutritional parameters and parasitic co-infection of cases. Results This longitudinal cohort study showed age-dependent differences in anti-sialidase immune response after natural cholera infection. Adult patients developed plasma anti-sialidase IgA and IgG responses after acute infection (P<0.05), which gradually decreased from day 30 on. In children, no significant anti-sialidase IgA, IgM, and IgG response was seen with the exception of a late IgG response at study day 540 (p=0.05 compared to adults). There was a correlation between anti-sialidase IgA with vibriocidal titers, as well as anti-sialidase IgA and IgG with anti-LPS and anti-CtxB antibody responses in adult patients, whereas in children, a significant positive correlation was seen only between anti-sialidase IgA and CtxB IgA responses. Stunted children showed significantly lower anti-sialidase IgA, IgG, and IgM antibody responses and higher LPS IgG and IgM antibody responses than healthy children. The anti-sialidase IgA and IgG responses were significantly higher in cases with concomitant parasitic infection. Conclusion Our data suggest that cholera patients develop age-distinct systemic and mucosal immune responses against sialidase. The stunted children have a lower anti-sialidase antibody response which may be associated with gut enteropathy and the neuraminidase plays an important role in augmented immune response in cholera patients infected with parasites.
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Affiliation(s)
- Fahima Chowdhury
- Infectious Diseases Division, icddr, b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
- Menzies Health Institute Queensland, Griffith University, Gold Coast, Australia
| | - Afroza Akter
- Infectious Diseases Division, icddr, b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Taufiqur Rahman Bhuiyan
- Infectious Diseases Division, icddr, b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Rajib Biswas
- Infectious Diseases Division, icddr, b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
- Department of Biology, Xavier University of Louisiana, New Orleans, AK, United States
| | - Md. Golam Firoj
- Infectious Diseases Division, icddr, b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Imam Tauheed
- Infectious Diseases Division, icddr, b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
| | - Jason B. Harris
- Department of Pediatrics, Harvard Medical School, Boston, MA, United States
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States
| | - Regina C. Larocque
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States
- Department of Medicine, Harvard Medical School, Boston, MA, United States
| | - Allen G. Ross
- Rural Health Research Institute, Charles Sturt University, Orange, New South Wales, Australia
| | | | - Richelle C. Charles
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States
- Department of Medicine, Harvard Medical School, Boston, MA, United States
- Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, MA, United States
| | - Edward T. Ryan
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States
- Department of Medicine, Harvard Medical School, Boston, MA, United States
- Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, MA, United States
| | - Stephen B. Calderwood
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States
- Department of Medicine, Harvard Medical School, Boston, MA, United States
- Department of Microbiology, Harvard Medical School, Boston, MA, United States
| | - Firdausi Qadri
- Infectious Diseases Division, icddr, b (International Centre for Diarrhoeal Disease Research, Bangladesh), Dhaka, Bangladesh
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Joseph Davey D, Nyemba DC, Castillo‐Mancilla J, Wiesner L, Norman J, Mvududu R, Mashele N, Johnson LF, Bekker L, Gorbach P, Coates TJ, Myer L. Adherence challenges with daily oral pre-exposure prophylaxis during pregnancy and the postpartum period in South African women: a cohort study. J Int AIDS Soc 2022; 25:e26044. [PMID: 36480171 PMCID: PMC9731362 DOI: 10.1002/jia2.26044] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Daily oral pre-exposure prophylaxis (PrEP) can reduce HIV acquisition. However, prevention effectiveness requires daily adherence prior to and during periods of sexual activity. Little is known about pharmacologic measures of PrEP adherence during pregnancy and postpartum and the factors related to optimal adherence during periods of sexual activity in this population. METHODS Between August 2019 and October 2021, we enrolled pregnant women without HIV at their first antenatal care visit followed-up through 12 months postpartum. Eligible women ≥16 years old received HIV prevention counselling and were offered oral PrEP (TDF-FTC). We quantified tenofovir-diphosphate (TFV-DP) in dried blood spots in women who reported taking PrEP in the past 30 days (at quarterly follow-up visits). We used regression models with generalized estimating equations to evaluate correlates of TFV-DP (any vs. none, and ≥2 vs. <2 doses/week), adjusting for maternal age and pregnancy status. RESULTS AND DISCUSSION In 382 women who started PrEP in pregnancy, returned for follow-up and reported PrEP use in the past 30 days, the median age was 27 years (interquartile range [IQR] = 23-32), and the median time on PrEP was 168 days (IQR = 84-252 days). Half of the samples had quantifiable TFV-DP at any time point (52%), declining from 67% of pregnant women 3 months post-initiation to 31% of postpartum women by 12 months. Overall, 72% had concentrations corresponding to <2 doses/week; 25% ≥2 doses/week; 3% 7 doses/week. Concentrations were lower in postpartum versus pregnancy (age-adjusted odds ratio [aOR] = 0.44; 95% confidence interval [CI] = 0.35-0.54). The correlation of self-reported adherence and TFV-DP ranged from -0.07 in pregnancy to 0.25 in postpartum women. Variables associated with having quantifiable TFV-DP included partner living with HIV/unknown serostatus (aOR = 1.50; 95% CI = 1.01-2.22), and reported frequency of sexual activity in the past month (aOR sex >5/month vs. no sex or <5 times/month = 2.11; 95% CI = 1.58-2.82) adjusting for age and pregnancy versus postpartum status. TFV-DP concentrations declined over follow-up time (aOR for 6 vs. 3 months = 0.49; 95% CI = 0.36-0.67). CONCLUSIONS Objectively measured adherence to PrEP was low overall and did not correlate with self-reported use. There is an urgent need for objective adherence measures to support clinical decision-making as well as adherence support interventions as part of PrEP services for pregnant and postpartum women at risk of HIV.
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Affiliation(s)
- Dvora Joseph Davey
- Division of Infectious DiseasesGeffen School of MedicineUniversity of California Los AngelesLos AngelesCaliforniaUSA
- Division of Epidemiology and BiostatisticsSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
- The Desmond Tutu Health FoundationUniversity of Cape TownCape TownSouth Africa
| | - Dorothy C. Nyemba
- Division of Epidemiology and BiostatisticsSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Jose Castillo‐Mancilla
- Division of Infectious DiseasesSchool of MedicineUniversity of Colorado‐Anschutz Medical CampusAuroraColoradoUSA
| | - Lubbe Wiesner
- Division of Clinical PharmacologyDepartment of MedicineUniversity of Cape TownCape TownSouth Africa
| | - Jennifer Norman
- Division of Clinical PharmacologyDepartment of MedicineUniversity of Cape TownCape TownSouth Africa
| | - Rufaro Mvududu
- Division of Epidemiology and BiostatisticsSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Nyiko Mashele
- Division of Epidemiology and BiostatisticsSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
| | - Leigh F. Johnson
- Centre for Infectious Disease Epidemiology and ResearchUniversity of Cape TownCape TownSouth Africa
| | - Linda‐Gail Bekker
- The Desmond Tutu Health FoundationUniversity of Cape TownCape TownSouth Africa
| | - Pamina Gorbach
- Division of Infectious DiseasesGeffen School of MedicineUniversity of California Los AngelesLos AngelesCaliforniaUSA
| | - Thomas J. Coates
- Division of Infectious DiseasesGeffen School of MedicineUniversity of California Los AngelesLos AngelesCaliforniaUSA
| | - Landon Myer
- Division of Epidemiology and BiostatisticsSchool of Public HealthUniversity of Cape TownCape TownSouth Africa
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Doughan A, Salifu SP. Genes associated with diagnosis and prognosis of Burkitt lymphoma. IET Syst Biol 2022; 16:220-229. [PMID: 36354023 PMCID: PMC9675412 DOI: 10.1049/syb2.12054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 08/30/2022] [Accepted: 10/27/2022] [Indexed: 11/11/2022] Open
Abstract
Burkitt lymphoma (BL) is one of the most aggressive forms of non-Hodgkin's lymphomas that affect children and young adults. The expression of genes and other molecular markers during carcinogenesis can be the basis for diagnosis, prognosis and the design of new and effective drugs for the management of cancers. The aim of this study was to identify genes that can serve as prognostic and therapeutic targets for BL. We analysed RNA-seq data of BL transcriptome sequencing projects in Africa using standard RNA-seq analyses pipeline. We performed pathway enrichment analyses, protein-protein interaction networks, gene co-expression and survival analyses. Gene and pathway enrichment analyses showed that the differentially expressed genes are involved in tube development, signalling receptor binding, viral protein interaction, cell migration, external stimuli response, serine hydrolase activity and PI3K-Akt signalling pathway. Protein-protein interaction network analyses revealed the genes to be highly interconnected, whereas module analyses revealed 25 genes to possess the highest interaction score. Overall survival analyses delineated six genes (ADAMTSL4, SEMA5B, ADAMTS15, THBS2, SPON1 and THBS1) that can serve as biomarkers for prognosis for BL management.
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Affiliation(s)
- Albert Doughan
- Department of Biochemistry and BiotechnologyCollege of ScienceFaculty of BiosciencesKwame Nkrumah University of Science and Technology (KNUST)KumasiGhana
| | - Samson Pandam Salifu
- Department of Biochemistry and BiotechnologyCollege of ScienceFaculty of BiosciencesKwame Nkrumah University of Science and Technology (KNUST)KumasiGhana
- Kumasi Centre for Collaborative Research in Tropical Medicine (KCCR)KumasiGhana
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22
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Madureira AC. Programmed Cell Death-Ligand-1 expression in Bladder Schistosomal Squamous Cell Carcinoma – There’s room for Immune Checkpoint Blockage? Front Immunol 2022; 13:955000. [PMID: 36148227 PMCID: PMC9486959 DOI: 10.3389/fimmu.2022.955000] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/16/2022] [Indexed: 11/17/2022] Open
Abstract
Schistosoma haematobium, the causative agent of urogenital schistosomiasis, is a carcinogen type 1 since 1994. It is strongly associated with bladder squamous-cell carcinoma in endemic regions, where it accounts for 53-69% of bladder-carcinoma cases. This histological subtype is associated with chronic inflammation being more aggressive and resistant to conventional chemo and radiotherapy. Immune-Checkpoint-Blockage (ICB) therapies targeting the Programmed-Cell-Death-Protein-1(PD-1)/Programmed-Cell-Death-Ligand-1(PD-L1) axis showed considerable success in treating advanced bladder urothelial carcinoma. PD-L1 is induced by inflammatory stimuli and expressed in immune and tumor cells. The binding of PD-L1 with PD-1 modulates immune response leading to T-cell exhaustion. PD-L1 presents in several isoforms and its expression is dynamic and can serve as a companion marker for patients’ eligibility, allowing the identification of positive tumors that are more likely to respond to ICB therapy. The high PD-L1 expression in bladder-urothelial-carcinoma and squamous-cell carcinoma may affect further ICB-therapy application and outcomes. In general, divergent histologies are ineligible for therapy. These treatments are expensive and prone to auto-immune side effects and resistance. Thus, biomarkers capable of predicting therapy response are needed. Also, the PD-L1 expression assessment still needs refinement. Studies focused on squamous cell differentiation associated with S. haematobium remain scarce. Furthermore, in low and middle-income-regions, where schistosomiasis is endemic, SCC biomarkers are needed. This mini-review provides an overview of the current literature regarding PD-L1 expression in bladder-squamous-cell-carcinoma and schistosomiasis. It aims to pinpoint future directions, controversies, challenges, and the importance of PD-L1 as a biomarker for diagnosis, disease aggressiveness, and ICB-therapy prognosis in bladder-schistosomal-squamous-cell carcinoma.
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Hill LM, Golin CE, Saidi F, Phanga T, Tseka J, Young A, Pearce LD, Maman S, Chi BH, Mutale W. Understanding PrEP decision making among pregnant women in Lilongwe, Malawi: A mixed-methods study. J Int AIDS Soc 2022; 25:e26007. [PMID: 36074034 PMCID: PMC9454413 DOI: 10.1002/jia2.26007] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 08/23/2022] [Indexed: 11/08/2022] Open
Abstract
INTRODUCTION Pre-exposure prophylaxis (PrEP) is a promising tool for HIV prevention during pregnancy. With increasing rollout in antenatal settings, counselling strategies to help pregnant women make appropriate decisions about PrEP use are needed. Understanding women's motivations and concerns for PrEP use-and how these inform their decision making and feelings about the decision to start PrEP-are critical to inform these strategies. METHODS We conducted a convergent mixed-methods study from June 2020 to June 2021 in the context of a PrEP adherence support trial among HIV-negative pregnant women in Lilongwe, Malawi. Two hundred women completed a survey reporting their motivations and concerns about PrEP use, and their feelings about the decision to start PrEP (Decisional Regret Scale). Thirty women completed in-depth interviews to better understand the decision-making process, including motivations and concerns weighed in women's decision to use PrEP. Analyses comprised descriptive and bivariate statistics, thematic qualitative analysis, and integration of quantitative and qualitative results. RESULTS Women initiating PrEP during pregnancy were highly motivated to obtain HIV protection for themselves and their unborn child, often due to perceived HIV risk connoted by a recent sexually transmitted infection and/or concerns about partner non-monogamy. These motivations prevailed despite some concerns about safety and side effects, anticipated stigmatization, and concerns about adherence burden and pill attributes. Many women had informed their partner of their decision to use PrEP yet few felt their decision was contingent upon partner approval. Most women felt positively about the decision to start PrEP (mean decisional regret = 1.2 out of 5), but those with a greater number of concerns reported greater decisional regret (B = 0.036; p = 0.005). Furthermore, women who were specifically concerned about partner disclosure, who disliked pills or who had no perceived HIV risk reported greater decisional regret. CONCLUSIONS Pregnant women were strongly motivated by the promise of HIV protection offered by PrEP and accepted it despite diverse concerns. A shared decision-making approach that centres pregnant women and offers partner involvement may help identify and address initial concerns about PrEP use and support prevention-effective use of PrEP during this important period.
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Affiliation(s)
- Lauren M. Hill
- Department of Health BehaviorUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Carol E. Golin
- Department of Health BehaviorUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
- Department of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Friday Saidi
- UNC Project‐MalawiLilongweMalawi
- Department of Obstetrics and GynecologySchool of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | | | | | - Alinda Young
- Department of Maternal and Child HealthUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Lisa D. Pearce
- Department of SociologyUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Suzanne Maman
- Department of Health BehaviorUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Benjamin H. Chi
- Department of Obstetrics and GynecologySchool of MedicineUniversity of North Carolina at Chapel HillChapel HillNorth CarolinaUSA
| | - Wilbroad Mutale
- Department of Health PolicyUniversity of Zambia School of Public HealthLusakaZambia
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Onyango DO, van der Sande MAB, Yuen CM, Mecha J, Matemo D, Oele E, Kinuthia J, John‐Stewart G, LaCourse SM. Drop-offs in the isoniazid preventive therapy cascade among children living with HIV in western Kenya, 2015-2019. J Int AIDS Soc 2022; 25:e25939. [PMID: 35927793 PMCID: PMC9352867 DOI: 10.1002/jia2.25939] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 05/17/2022] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Isoniazid preventive therapy (IPT) can reduce the risk of tuberculosis (TB) in children living with HIV (CLHIV), but data on the outcomes of the IPT cascade in CLHIV are limited. METHODS We evaluated the IPT cascade among CLHIV aged <15 years and newly enrolled in HIV care in eight HIV clinics in western Kenya. Medical record data were abstracted from September 2015 through July 2019. We assessed the proportion of CLHIV completing TB symptom screening, IPT eligibility assessment, IPT initiation and completion. TB incidence rate was calculated stratified by IPT initiation and completion status. Risk factors for IPT non-initiation and non-completion were assessed using Poisson regression with generalized linear models. RESULTS Overall, 856 CLHIV were newly enrolled in HIV care, of whom 98% ([95% CI 97-99]; n = 841) underwent screening for TB symptoms and IPT eligibility. Of these, 13 (2%; 95% CI 1-3) were ineligible due to active TB and 828 (98%; 95% CI 97-99) were eligible. Five hundred and fifty-nine (68%; 95% CI 64-71) of eligible CLHIV initiated IPT; median time to IPT initiation was 3.6 months (interquartile range [IQR] 0.5-10.2). Overall, 434 (78%; 95% CI 74-81) IPT initiators completed. Attending high-volume HIV clinics (aRR = 2.82; 95% CI 1.20-6.62) was independently associated with IPT non-initiation. IPT non-initiation had a trend of being higher among those enrolled in the period 2017-2019 versus 2015-2016 (aRR = 1.91; 0.98-3.73) and those who were HIV virally non-suppressed (aRR = 1.90; 95% CI 0.98-3.71). Being enrolled in 2017-2019 versus 2015-2016 (aRR = 1.40; 1.01-1.96) was independently associated with IPT non-completion. By 24 months after IPT screening, TB incidence was four-fold higher among eligible CLHIV who never initiated (8.1 per 1000 person years [PY]) compared to CLHIV who completed IPT (2.1 per 1000 PY; rate ratio [RR] = 3.85; 95% CI 1.08-17.15), with a similar trend among CLHIV who initiated but did not complete IPT (8.2/1000 PY; RR = 4.39; 95% CI 0.82-23.56). CONCLUSIONS Despite high screening for eligibility, timely IPT initiation and completion were suboptimal among eligible CLHIV in this programmatic cohort. Targeted programmatic interventions are needed to address these drop-offs from the IPT cascade by ensuring timely IPT initiation after ruling out active TB and enhancing completion of the 6-month course to reduce TB in CLHIV.
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Affiliation(s)
- Dickens Otieno Onyango
- Kisumu County Department of HealthKisumuKenya
- Institute of Tropical MedicineAntwerpBelgium
- Julius Global Health, Julius Center for Health Sciences and Primary CareUniversity Medical Center UtrechtUtrechtthe Netherlands
| | - Marianne A. B. van der Sande
- Institute of Tropical MedicineAntwerpBelgium
- Julius Global Health, Julius Center for Health Sciences and Primary CareUniversity Medical Center UtrechtUtrechtthe Netherlands
| | | | - Jerphason Mecha
- Department of Research and ProgramsKenyatta National HospitalNairobiKenya
| | - Daniel Matemo
- Department of Research and ProgramsKenyatta National HospitalNairobiKenya
| | | | - John Kinuthia
- Department of Research and ProgramsKenyatta National HospitalNairobiKenya
- Department of Global HealthUniversity of WashingtonSeattleWashingtonUSA
| | - Grace John‐Stewart
- Department of Global HealthUniversity of WashingtonSeattleWashingtonUSA
- Division of Allergy and Infectious DiseasesDepartment of Medicine, University of WashingtonSeattleWashingtonUSA
- Department of EpidemiologyUniversity of WashingtonSeattleWashingtonUSA
- Department of PediatricsUniversity of WashingtonSeattleWashingtonUSA
| | - Sylvia M. LaCourse
- Department of Global HealthUniversity of WashingtonSeattleWashingtonUSA
- Division of Allergy and Infectious DiseasesDepartment of Medicine, University of WashingtonSeattleWashingtonUSA
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Palma AM, Marra G, Bray R, Saito S, Awor AC, Jalloh MF, Kailembo A, Kirungi W, Mgomella GS, Njau P, Voetsch AC, Ward JA, Bärnighausen T, Harling G. Correcting for selection bias in HIV prevalence estimates: an application of sample selection models using data from population-based HIV surveys in seven sub-Saharan African countries. J Int AIDS Soc 2022; 25:e25954. [PMID: 35929226 PMCID: PMC9353488 DOI: 10.1002/jia2.25954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 06/09/2022] [Indexed: 11/25/2022] Open
Abstract
Introduction Population‐based biomarker surveys are the gold standard for estimating HIV prevalence but are susceptible to substantial non‐participation (up to 30%). Analytical missing data methods, including inverse‐probability weighting (IPW) and multiple imputation (MI), are biased when data are missing‐not‐at‐random, for example when people living with HIV more frequently decline participation. Heckman‐type selection models can, under certain assumptions, recover unbiased prevalence estimates in such scenarios. Methods We pooled data from 142,706 participants aged 15–49 years from nationally representative cross‐sectional Population‐based HIV Impact Assessments in seven countries in sub‐Saharan Africa, conducted between 2015 and 2018 in Tanzania, Uganda, Malawi, Zambia, Zimbabwe, Lesotho and Eswatini. We compared sex‐stratified HIV prevalence estimates from unadjusted, IPW, MI and selection models, controlling for household and individual‐level predictors of non‐participation, and assessed the sensitivity of selection models to the copula function specifying the correlation between study participation and HIV status. Results In total, 84.1% of participants provided a blood sample to determine HIV serostatus (range: 76% in Malawi to 95% in Uganda). HIV prevalence estimates from selection models diverged from IPW and MI models by up to 5% in Lesotho, without substantial precision loss. In Tanzania, the IPW model yielded lower HIV prevalence estimates among males than the best‐fitting copula selection model (3.8% vs. 7.9%). Conclusions We demonstrate how HIV prevalence estimates from selection models can differ from those obtained under missing‐at‐random assumptions. Further benefits include exploration of plausible relationships between participation and outcome. While selection models require additional assumptions and careful specification, they are an important tool for triangulating prevalence estimates in surveys with substantial missing data due to non‐participation.
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Affiliation(s)
- Anton M. Palma
- ICAP at Columbia UniversityNew YorkNew YorkUSA
- Institute for Clinical and Translational SciencesUniversity of California IrvineIrvineCaliforniaUSA
| | | | - Rachel Bray
- ICAP at Columbia UniversityNew YorkNew YorkUSA
| | - Suzue Saito
- ICAP at Columbia UniversityNew YorkNew YorkUSA
| | - Anna Colletar Awor
- Division of Global HIV and TuberculosisCenter for Global HealthCDCKampalaUganda
| | - Mohamed F. Jalloh
- Division of Global HIV and TuberculosisCenter for Global HealthCDCDar es SalaamTanzania
| | - Alexander Kailembo
- National Institutes of HealthNational Institute of Dental and Craniofacial ResearchBethesdaMarylandUSA
| | | | - George S. Mgomella
- Division of Global HIV and TuberculosisCenter for Global HealthCDCDar es SalaamTanzania
- University of CambridgeCambridgeUK
| | - Prosper Njau
- Division of Global HIV and TuberculosisCenter for Global HealthCDCDar es SalaamTanzania
| | | | - Jennifer A. Ward
- Division of Global HIV and TuberculosisCenter for Global HealthCDCKampalaUganda
| | - Till Bärnighausen
- Africa Health Research InstituteKwaZulu‐NatalSouth Africa
- MRC/Wits Rural Public Health & Health Transitions Research Unit (Agincourt)University of the WitwatersrandJohannesburgSouth Africa
- Department of Epidemiology & Harvard Center for Population and Development StudiesHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
- Heidelberg Institute of Global HealthUniversity of HeidelbergHeidelbergGermany
| | - Guy Harling
- Africa Health Research InstituteKwaZulu‐NatalSouth Africa
- MRC/Wits Rural Public Health & Health Transitions Research Unit (Agincourt)University of the WitwatersrandJohannesburgSouth Africa
- Department of Epidemiology & Harvard Center for Population and Development StudiesHarvard T.H. Chan School of Public HealthBostonMassachusettsUSA
- Institute for Global HealthUniversity College LondonLondonUK
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LeeVan E, Hu F, Mitchell AB, Kokogho A, Adebajo S, Garges EC, Qian H, Ake JA, Robb ML, Charurat ME, Baral SD, Nowak RG, Crowell TA. Associations of gender identity with sexual behaviours, social stigma and sexually transmitted infections among adults who have sex with men in Abuja and Lagos, Nigeria. J Int AIDS Soc 2022; 25:e25956. [PMID: 35794838 PMCID: PMC9259961 DOI: 10.1002/jia2.25956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/23/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction Sexual and gender minority populations are disproportionately affected by the global syndemic of HIV and other sexually transmitted infections (STIs). We hypothesized that transgender women (TGW) and non‐binary individuals in Nigeria have more STIs than cis‐gender men who have sex with men (cis‐MSM), and that experiences of stigma and sexual practices differ between these three groups. Methods From 2013 to 2020, TRUST/RV368 enrolled adults assigned male sex at birth who reported anal sex with men in Abuja and Lagos, Nigeria. Participants were tested for STIs and completed questionnaires about sexual behaviours and social stigma every 3 months. Participants were categorized as cis‐MSM, TGW or non‐binary/other based on self‐reported gender identity. Gender group comparisons were made of HIV, gonorrhoea and chlamydia prevalence and incidence; stigma indicators; and condom use during anal sex. Results Among 2795 participants, there were 2260 (80.8%) cis‐MSM, 284 (10.2%) TGW and 251 (9.0%) non‐binary/other individuals with median age of 23 years (interquartile range 20–27). HIV prevalence among cis‐MSM, TGW and non‐binary/other participants was 40.8%, 51.5% and 47.6%, respectively (p = 0.002). HIV incidence was 8.7 cases per 100 person‐years (PY) (95% confidence interval [CI] 6.9–10.8), 13.1 cases/100 PY (95% CI 6.5–23.4) and 17.6 cases/100 PY (95% CI 9.8–29.0, p = 0.025), respectively. Anorectal gonorrhoea incidence was lower in cis‐MSM than TGW (22.2 [95% CI 19.6–25.0] vs. 35.9 [95% CI 27.3–46.3]). TGW were more likely than cis‐MSM to report being affected by stigma, including assault (47.2% vs. 32.3%), fear of walking around (32.4% vs. 19.2%) and healthcare avoidance (25.0% vs. 19.1%; all p < 0.05). TGW were more likely to report always using condoms than non‐binary/other individuals (35.3% vs. 26.2%, p = 0.041) during receptive anal sex. Conclusions Sexual and gender minorities in Nigeria have heterogeneous sexual behaviours and experiences of social stigma that may influence the vulnerability to HIV and other STIs. There is a need for tailored interventions that acknowledge and are informed by gender. Further research is needed, particularly among understudied non‐binary individuals, to better understand disparities and inform tailored interventions to improve outcomes among these communities.
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Affiliation(s)
- Elyse LeeVan
- U.S. Military HIV Research ProgramWalter Reed Army Institute of ResearchSilver SpringMarylandUSA
- Henry M. Jackson Foundation for the Advancement of Military MedicineBethesdaMarylandUSA
| | - Fengming Hu
- U.S. Military HIV Research ProgramWalter Reed Army Institute of ResearchSilver SpringMarylandUSA
- Henry M. Jackson Foundation for the Advancement of Military MedicineBethesdaMarylandUSA
| | | | | | - Sylvia Adebajo
- Center for International Health and Biosecurity (Ciheb)AbujaNigeria
| | - Eric C. Garges
- Department of Preventive Medicine and BiostaticsUniformed Services UniversityBethesdaMarylandUSA
| | - Haoyu Qian
- U.S. Military HIV Research ProgramWalter Reed Army Institute of ResearchSilver SpringMarylandUSA
- Henry M. Jackson Foundation for the Advancement of Military MedicineBethesdaMarylandUSA
| | - Julie A. Ake
- U.S. Military HIV Research ProgramWalter Reed Army Institute of ResearchSilver SpringMarylandUSA
| | - Merlin L. Robb
- U.S. Military HIV Research ProgramWalter Reed Army Institute of ResearchSilver SpringMarylandUSA
- Henry M. Jackson Foundation for the Advancement of Military MedicineBethesdaMarylandUSA
| | | | - Stefan D. Baral
- Johns Hopkins Bloomberg School of Public HealthBaltimoreMarylandUSA
| | - Rebecca G. Nowak
- Institute of Human VirologyUniversity of MarylandBaltimoreMarylandUSA
| | - Trevor A. Crowell
- U.S. Military HIV Research ProgramWalter Reed Army Institute of ResearchSilver SpringMarylandUSA
- Henry M. Jackson Foundation for the Advancement of Military MedicineBethesdaMarylandUSA
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DeBoer RJ, Nguyen C, Mutoniwase E, Ho A, Umutesi G, Bigirimana JB, Triedman SA, Shyirambere C. Procedural fairness for radiotherapy priority setting in a low resource context. Bioethics 2022; 36:500-510. [PMID: 34415636 PMCID: PMC9292884 DOI: 10.1111/bioe.12939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 05/22/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Radiotherapy is an essential component of cancer treatment, yet many countries do not have adequate capacity to serve their populations. This mismatch between demand and supply creates the need for priority setting. There is no widely accepted system to guide patient prioritization for radiotherapy in a low resource context. In the absence of consensus on allocation principles, fair procedures for priority setting should be established. Research is needed to understand what elements of procedural fairness are important to decision makers in diverse settings, assess the feasibility of implementing fair procedures for priority setting in low resource contexts, and improve these processes. This study presents the views of decision makers engaged in everyday radiotherapy priority setting at a cancer center in Rwanda. Semi-structured interviews with 22 oncology physicians, nurses, program leaders, and advisors were conducted. Participants evaluated actual radiotherapy priority setting procedures at the program (meso) and patient (micro) levels, reporting facilitators, barriers, and recommendations. We discuss our findings in relation to the leading Accountability for Reasonableness (AFR) framework. Participants emphasized procedural elements that facilitate adherence to normative principles, such as objective criteria that maximize lives saved. They ascribed fairness to AFR's substantive requirement of relevance more than transparency, appeals, and enforcement. They identified several challenges unresolved by AFR, such as conflicting relevant rationales and unintended consequences of publicity and appeals. Implementing fair procedure itself is resource intensive, a paradox that calls for innovative, context-appropriate solutions. Finally, socioeconomic and structural barriers to care that undermine procedural fairness must be addressed.
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Affiliation(s)
- Rebecca J. DeBoer
- Division of Hematology/OncologyUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Cam Nguyen
- Partners in Health/Inshuti Mu BuzimaKigaliRwanda
| | | | - Anita Ho
- Division of Hematology/OncologyUniversity of California San FranciscoSan FranciscoCaliforniaUSA
- University of British ColumbiaVancouverBritish ColumbiaCanada
| | | | | | - Scott A. Triedman
- Warren Alpert Medical School of Brown University, ProvidenceRhode IslandUSA
- Dana Farber Cancer InstituteBostonMassachusettsUSA
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Neylan JH, Patel SS, Erickson TB. Strategies to Counter Disinformation for Healthcare Practitioners and Policymakers. World Med Health Policy 2022; 14:423-431. [PMID: 35755311 PMCID: PMC9216217 DOI: 10.1002/wmh3.487] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/20/2021] [Accepted: 11/02/2021] [Indexed: 12/04/2022]
Abstract
Medical disinformation has interfered with healthcare workers' ability to communicate with the general population in a wide variety of public health contexts globally. This has limited the effectiveness of evidence-based medicine and healthcare capacity. Disinformation campaigns often try to integrate or co-opt healthcare workers in their practices which hinders effective health communication. We describe a critical overview of issues health practitioners and communicators have experienced when dealing with medical disinformation online and offline as well as best practices to overcome these issues when disseminating health information. This article lists disinformation techniques that have yet to be used against the medical community but need to be considered in future communication planning as they may be highly effective. We also present broad policy recommendations and considerations designed to mitigate the effectiveness of medical disinformation campaigns.
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Affiliation(s)
- Julian H. Neylan
- Harvard Humanitarian InitiativeT.H. Chan Harvard School of Public HealthCambridgeMassachusettsUSA
| | - Sonny S. Patel
- Harvard Humanitarian InitiativeT.H. Chan Harvard School of Public HealthCambridgeMassachusettsUSA
- Department of Medicine and Health, Sydney School of Health SciencesThe University of SydneyNew South WalesAustralia
| | - Timothy B. Erickson
- Harvard Humanitarian InitiativeT.H. Chan Harvard School of Public HealthCambridgeMassachusettsUSA
- Division of Medical Toxicology, Department of Emergency MedicineMass General Brigham, Harvard Medical SchoolBostonMassachusettsUSA
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Simino LADP, Fontana MF, de Fante T, Panzarin C, Ignacio-Souza LM, Milanski M, Torsoni MA, Desai M, Ross MG, Torsoni AS. Hepatic Epigenetic Reprogramming After Liver Resection in Offspring Alleviates the Effects of Maternal Obesity. Front Cell Dev Biol 2022; 10:830009. [PMID: 35433669 PMCID: PMC9009519 DOI: 10.3389/fcell.2022.830009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Obesity has become a public health problem in recent decades, and during pregnancy, it can lead to an increased risk of gestational complications and permanent changes in the offspring resulting from a process known as metabolic programming. The offspring of obese dams are at increased risk of developing non-alcoholic fatty liver disease (NAFLD), even in the absence of high-fat diet consumption. NAFLD is a chronic fatty liver disease that can progress to extremely severe conditions that require surgical intervention with the removal of the injured tissue. Liver regeneration is necessary to preserve organ function. A range of pathways is activated in the liver regeneration process, including the Hippo, TGFβ, and AMPK signaling pathways that are under epigenetic control. We investigated whether microRNA modulation in the liver of the offspring of obese dams would impact gene expression of Hippo, TGFβ, and AMPK pathways and tissue regeneration after partial hepatectomy (PHx). Female Swiss mice fed a standard chow or a high-fat diet (HFD) before and during pregnancy and lactation were mated with male control mice. The offspring from control (CT-O) and obese (HF-O) dams weaned to standard chow diet until day 56 were submitted to PHx surgery. Prior to the surgery, HF-O presented alterations in miR-122, miR-370, and Let-7a expression in the liver compared to CT-O, as previously shown, as well as in its target genes involved in liver regeneration. However, after the PHx (4 h or 48 h post-surgery), differences in gene expression between CT-O and HF-O were suppressed, as well as in microRNA expression in the liver. Furthermore, both CT-O and HF-O presented a similar regenerative capacity of the liver within 48 h after PHx. Our results suggest that survival and regenerative mechanisms induced by the partial hepatectomy may overcome the epigenetic changes in the liver of offspring programmed by maternal obesity.
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Affiliation(s)
- Lais A. de Paula Simino
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas—UNICAMP, Limeira, Brazil
| | - Marina Figueiredo Fontana
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas—UNICAMP, Limeira, Brazil
| | - Thais de Fante
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas—UNICAMP, Limeira, Brazil
| | - Carolina Panzarin
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas—UNICAMP, Limeira, Brazil
| | | | - Marciane Milanski
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas—UNICAMP, Limeira, Brazil
| | - Marcio Alberto Torsoni
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas—UNICAMP, Limeira, Brazil
| | - Mina Desai
- The Lundquist Institute and David Geffen School of Medicine at Harbor-UCLA Medical Center, University of California, Los Angeles, Los Angeles, CA, United States
| | - Michael G. Ross
- The Lundquist Institute and David Geffen School of Medicine at Harbor-UCLA Medical Center, University of California, Los Angeles, Los Angeles, CA, United States
| | - Adriana Souza Torsoni
- Laboratory of Metabolic Disorders, School of Applied Sciences, University of Campinas—UNICAMP, Limeira, Brazil
- *Correspondence: Adriana Souza Torsoni,
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Tymejczyk O, Deschamps MM, Rouzier V, McNairy ML, Peck RN, Malha L, Macius Y, Fitzgerald DW, Pape JW, Nash D. Estimated blood pressure trajectories and hypertension patterns among pregnant women living with HIV, Haiti, 2007-2017. J Clin Hypertens (Greenwich) 2022; 24:237-245. [PMID: 35129266 PMCID: PMC8925004 DOI: 10.1111/jch.14432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 12/27/2021] [Accepted: 12/30/2021] [Indexed: 01/17/2023]
Abstract
Hypertension in pregnancy is a key driver of mortality and morbidity among Haitian women. HIV infection and treatment may worsen hypertension and increase cardiovascular disease risk. The authors examined blood pressure and hypertension patterns among 1965 women (2306 pregnancies ending in live births) in a prevention of maternal-to-child transmission (PMTCT) program in Port-au-Prince, Haiti, between 2007 and 2017. Hypertension was defined as blood pressure ≥140/90 mm Hg on two consecutive visits. Latent class analysis assessed trajectories of mean arterial pressure (MAP) and multinomial ordinal logistic regression examined factors associated with higher trajectories. Between 2007-2009 and 2013-2016, hypertension at PMTCT entry increased from 1.3% to 3.8% (p = .005), while incidence at any time during PMTCT follow-up increased from 5.0 to 16.1 per 100 person-years (p < .001). Hypertension detected ≤20 weeks and > 20 weeks of gestation (possible gestational hypertension) increased from 1.1% to 3.5% (p = .003) and from 2.3% to 6.9% (p < .001), respectively. Five MAP trajectories ranged from low-stable to high-increasing. In multivariable analysis controlling for history of antiretroviral therapy, age, parity, and weight, program entry in more recent years was associated with greater odds of higher MAP trajectory (adjusted odds ratio for 2013-2016 vs. 2007-2009 = 3.1, 95% confidence interval: 1.7-5.6). The increasing prevalence and incidence of hypertension highlight a need for screening and management prior to PMTCT entry and during follow-up. In a population with limited access to chronic disease care, and where many deliveries occur outside of a clinical setting, the period of PMTCT follow-up represents an opportunity to diagnose and initiate management of preexisting and pregnancy-related hypertension.
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Affiliation(s)
- Olga Tymejczyk
- City University of New York Institute for Implementation Science in Population HealthNew YorkNew YorkUSA
| | - Marie Marcelle Deschamps
- Haitian Group for the Study of Kaposi's Sarcoma and Opportunistic Infections (GHESKIO)Port‐au‐PrinceHaiti
| | - Vanessa Rouzier
- Haitian Group for the Study of Kaposi's Sarcoma and Opportunistic Infections (GHESKIO)Port‐au‐PrinceHaiti
- Center for Global HealthDepartment of MedicineWeill Cornell MedicineNew YorkNew YorkUSA
| | - Margaret L. McNairy
- Center for Global HealthDepartment of MedicineWeill Cornell MedicineNew YorkNew YorkUSA
| | - Robert N. Peck
- Center for Global HealthDepartment of MedicineWeill Cornell MedicineNew YorkNew YorkUSA
- Weill Bugando School of MedicineMwanzaTanzania
| | - Line Malha
- Division of Nephrology and HypertensionWeill Cornell MedicineNew YorkNew YorkUSA
| | - Youry Macius
- Haitian Group for the Study of Kaposi's Sarcoma and Opportunistic Infections (GHESKIO)Port‐au‐PrinceHaiti
| | - Daniel W. Fitzgerald
- Center for Global HealthDepartment of MedicineWeill Cornell MedicineNew YorkNew YorkUSA
| | - Jean W. Pape
- Haitian Group for the Study of Kaposi's Sarcoma and Opportunistic Infections (GHESKIO)Port‐au‐PrinceHaiti
- Center for Global HealthDepartment of MedicineWeill Cornell MedicineNew YorkNew YorkUSA
| | - Denis Nash
- City University of New York Institute for Implementation Science in Population HealthNew YorkNew YorkUSA
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Karanović S, Ardin M, Tang Z, Tomić K, Villar S, Renard C, Venturini E, Lorch AH, Lee DS, Stipančić Ž, Slade N, Vuković Brinar I, Dittrich D, Karlović K, Borovečki F, Dickman KG, Olivier M, Grollman AP, Jelaković B, Zavadil J. Molecular profiles and urinary biomarkers of upper tract urothelial carcinomas associated with aristolochic acid exposure. Int J Cancer 2022; 150:374-386. [PMID: 34569060 PMCID: PMC8627473 DOI: 10.1002/ijc.33827] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/25/2021] [Accepted: 08/31/2021] [Indexed: 12/23/2022]
Abstract
Recurrent upper tract urothelial carcinomas (UTUCs) arise in the context of nephropathy linked to exposure to the herbal carcinogen aristolochic acid (AA). Here we delineated the molecular programs underlying UTUC tumorigenesis in patients from endemic aristolochic acid nephropathy (AAN) regions in Southern Europe. We applied an integrative multiomics analysis of UTUCs, corresponding unaffected tissues and of patient urines. Quantitative microRNA (miRNA) and messenger ribonucleic acid (mRNA) expression profiling, immunohistochemical analysis by tissue microarrays and exome and transcriptome sequencing were performed in UTUC and nontumor tissues. Urinary miRNAs of cases undergoing surgery were profiled before and after tumor resection. Ribonucleic acid (RNA) and protein levels were analyzed using appropriate statistical tests and trend assessment. Dedicated bioinformatic tools were used for analysis of pathways, mutational signatures and result visualization. The results delineate UTUC-specific miRNA:mRNA networks comprising 89 miRNAs associated with 1,862 target mRNAs, involving deregulation of cell cycle, deoxyribonucleic acid (DNA) damage response, DNA repair, bladder cancer, oncogenes, tumor suppressors, chromatin structure regulators and developmental signaling pathways. Key UTUC-specific transcripts were confirmed at the protein level. Exome and transcriptome sequencing of UTUCs revealed AA-specific mutational signature SBS22, with 68% to 76% AA-specific, deleterious mutations propagated at the transcript level, a possible basis for neoantigen formation and immunotherapy targeting. We next identified a signature of UTUC-specific miRNAs consistently more abundant in the patients' urine prior to tumor resection, thereby defining biomarkers of tumor presence. The complex gene regulation programs of AAN-associated UTUC tumors involve regulatory miRNAs prospectively applicable to noninvasive urine-based screening of AAN patients for cancer presence and recurrence.
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Affiliation(s)
- Sandra Karanović
- Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Center ZagrebSchool of Medicine, University of ZagrebZagrebCroatia
| | - Maude Ardin
- Epigenomics and Mechanisms BranchInternational Agency for Research on Cancer, WHOLyonFrance
| | - Zuojian Tang
- Institute for Systems GeneticsNew York University Langone Medical CenterNew YorkNew YorkUSA
- Present address:
Boehringer Ingelheim Pharmaceuticals, Inc.RidgefieldCTUSA
| | - Karla Tomić
- Department of PathologyGeneral Hospital Dr. Josip BenčevićSlavonski BrodCroatia
- Present address:
Department of PathologyÅlesund Hospital, Møre and Romsdal Health TrustÅlesundNorway
| | - Stephanie Villar
- Epigenomics and Mechanisms BranchInternational Agency for Research on Cancer, WHOLyonFrance
| | - Claire Renard
- Epigenomics and Mechanisms BranchInternational Agency for Research on Cancer, WHOLyonFrance
| | - Elisa Venturini
- Office for Collaborative ScienceNew York University Langone Medical CenterNew YorkNew YorkUSA
- Present address:
Natera, Inc.San CarlosCAUSA
| | - Adam H. Lorch
- Biochemistry and Molecular GeneticsNorthwestern University Feinberg School of MedicineChicagoIllinoisUSA
| | - Daniel S. Lee
- Office for Collaborative ScienceNew York University Langone Medical CenterNew YorkNew YorkUSA
| | - Želimir Stipančić
- Department for Dialysis OdžakCounty Hospital OrašjeOdžakBosnia and Herzegovina
| | - Neda Slade
- Division of Molecular MedicineInstitute Ruđer BoškovićZagrebCroatia
| | - Ivana Vuković Brinar
- Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Center ZagrebSchool of Medicine, University of ZagrebZagrebCroatia
| | - Damir Dittrich
- Department of UrologyGeneral Hospital Dr. Josip BenčevićSlavonski BrodCroatia
| | - Krešimir Karlović
- Department of UrologyGeneral Hospital Dr. Josip BenčevićSlavonski BrodCroatia
| | - Fran Borovečki
- Department for Functional Genomics, Center for Translational and Clinical ResearchUniversity Hospital Center Zagreb, School of Medicine, University of ZagrebZagrebCroatia
| | - Kathleen G. Dickman
- Department of MedicineStony Brook UniversityStony BrookNew YorkUSA
- Department of Medicine/NephrologyStony Brook UniversityStony BrookNew YorkUSA
| | - Magali Olivier
- Epigenomics and Mechanisms BranchInternational Agency for Research on Cancer, WHOLyonFrance
| | | | - Bojan Jelaković
- Department of Nephrology, Arterial Hypertension, Dialysis and Transplantation, University Hospital Center ZagrebSchool of Medicine, University of ZagrebZagrebCroatia
| | - Jiri Zavadil
- Epigenomics and Mechanisms BranchInternational Agency for Research on Cancer, WHOLyonFrance
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Sanchez-Samaniego G, Hartinger SM, Tallman PS, Mäusezahl D. Cardiovascular Disease in the Peruvian Andes: Local Perceptions, Barriers, and Paths to Preventing Chronic Diseases in the Cajamarca Region. Int J Public Health 2021; 66:1604117. [PMID: 34646111 PMCID: PMC8504254 DOI: 10.3389/ijph.2021.1604117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 09/09/2021] [Indexed: 11/24/2022] Open
Abstract
Objectives: Public health interventions can be improved by understanding peoples' explanatory models of disease. We explore awareness and perceptions of cardiovascular diseases (CVD) and options for preventative actions in young adults living in rural Andean communities. Methods: We used convenience sampling to select 46 men and women from communities in Cajamarca (Peru). Subjects participated in eight focus groups where they discussed their understanding and perceived causes of CVD as well as barriers and pathways to healthy lifestyles. Results: Fresh foods, physical activity, unpleasant emotions, and healthcare access were cited as important determinants of healthy lifestyles. Barriers to healthy diets included lacking nutritional knowledge, fluctuating food prices, and limited access to foodstuffs. Women felt particularly vulnerable to CVD and identified gendered barriers to manage stress and engage in sports. Low health literacy, poor doctor-patient relationships, and long distances prevented participants from fully accessing healthcare. Conclusion: CVD prevention interventions should consider local knowledge of these diseases and of healthy lifestyles, and harness ongoing programmes that have successfully promoted good nutrition in children and pregnant women. In concert with public-private parterships, governments should include disease prevention interventions for the entire family.
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Affiliation(s)
- Giuliana Sanchez-Samaniego
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute (Swiss TPH), Basel, Switzerland
- University of Basel, Basel, Switzerland
- Faculty of Public Health and Administration, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Stella M. Hartinger
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute (Swiss TPH), Basel, Switzerland
- University of Basel, Basel, Switzerland
- Faculty of Public Health and Administration, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Paula S. Tallman
- Field Museum of Natural History, Chicago, IL, United States
- Department of Anthropology, Loyola University Chicago, Chicago, IL, United States
| | - Daniel Mäusezahl
- Department of Epidemiology and Public Health, Swiss Tropical and Public Health Institute (Swiss TPH), Basel, Switzerland
- University of Basel, Basel, Switzerland
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Stover J, Glaubius R, Kassanjee R, Dugdale CM. Updates to the Spectrum/AIM model for the UNAIDS 2020 HIV estimates. J Int AIDS Soc 2021; 24 Suppl 5:e25778. [PMID: 34546648 PMCID: PMC8454674 DOI: 10.1002/jia2.25778] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 07/14/2021] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION The Spectrum/AIM model is used by national HIV programs and UNAIDS to prepare annual estimates of key HIV indicators. This article describes key updates to paediatric and adult models for the 2021 round of HIV estimates. METHODS Potential updates to Spectrum arise due to newly available data, new analyses of existing data, and the need for new issues to be addressed. Updates are guided by experts through the UNAIDS Reference Group on Estimates, Modelling and Projections. Changes are tested and assessed for impact before being accepted into the final model. RESULTS Spectrum tracks children living with HIV by CD4% for ages 0-4 and CD4 count for ages 5-14. Data from IeDEA treatment sites have been used to map the transition from CD4% to CD4 count at age 5. Breastfeeding patterns in sub-Saharan Africa have been updated with the latest survey data and estimates of continuation on antiretroviral therapy (ART) with breastfeeding have been revised based on recent studies. Model assumptions about the CD4 counts of people who drop out of ART have been revised to account for CD4 count increases while on treatment. If available, monthly data on numbers on ART can now be used to estimate the effects of COVID-19-related disruptions during 2020. CONCLUSIONS These changes are intended to provide more accurate estimates of HIV burden. The effects of these changes on paediatric indicators are small except in countries with new surveys that might have updated patterns of breastfeeding. Changes to the adult model have little effect on total new infections. AIDS-related deaths will be somewhat lower in countries that have data on ART drop out but might be increased by HIV care disruptions due to COVID-19. The updated model uses newly available data to improve the estimation of paediatric and adult HIV indicators.
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Affiliation(s)
- John Stover
- Center for Modeling, Planning and Policy AnalysisAvenir HealthGlastonburyCTUSA
| | - Robert Glaubius
- Center for Modeling, Planning and Policy AnalysisAvenir HealthGlastonburyCTUSA
| | - Reshma Kassanjee
- Centre for Infectious Disease Epidemiology and Research (CIDER)University of Cape TownCape TownSouth Africa
| | - Caitlin M. Dugdale
- Division of Infectious DiseasesMassachusetts General HospitalBostonMAUSA
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Argyropoulos DC, Ruybal‐Pesántez S, Deed SL, Oduro AR, Dadzie SK, Appawu MA, Asoala V, Pascual M, Koram KA, Day KP, Tiedje KE. The impact of indoor residual spraying on Plasmodium falciparum microsatellite variation in an area of high seasonal malaria transmission in Ghana, West Africa. Mol Ecol 2021; 30:3974-3992. [PMID: 34143538 PMCID: PMC8456823 DOI: 10.1111/mec.16029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/26/2021] [Accepted: 06/01/2021] [Indexed: 01/16/2023]
Abstract
Here, we report the first population genetic study to examine the impact of indoor residual spraying (IRS) on Plasmodium falciparum in humans. This study was conducted in an area of high seasonal malaria transmission in Bongo District, Ghana. IRS was implemented during the dry season (November-May) in three consecutive years between 2013 and 2015 to reduce transmission and attempt to bottleneck the parasite population in humans towards lower diversity with greater linkage disequilibrium. The study was done against a background of widespread use of long-lasting insecticidal nets, typical for contemporary malaria control in West Africa. Microsatellite genotyping with 10 loci was used to construct 392 P. falciparum multilocus infection haplotypes collected from two age-stratified cross-sectional surveys at the end of the wet seasons pre- and post-IRS. Three-rounds of IRS, under operational conditions, led to a >90% reduction in transmission intensity and a 35.7% reduction in the P. falciparum prevalence (p < .001). Despite these declines, population genetic analysis of the infection haplotypes revealed no dramatic changes with only a slight, but significant increase in genetic diversity (He : pre-IRS = 0.79 vs. post-IRS = 0.81, p = .048). Reduced relatedness of the parasite population (p < .001) was observed post-IRS, probably due to decreased opportunities for outcrossing. Spatiotemporal genetic differentiation between the pre- and post-IRS surveys (D = 0.0329 [95% CI: 0.0209 - 0.0473], p = .034) was identified. These data provide a genetic explanation for the resilience of P. falciparum to short-term IRS programmes in high-transmission settings in sub-Saharan Africa.
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Affiliation(s)
- Dionne C. Argyropoulos
- School of BioSciencesBio21 InstituteThe University of MelbourneMelbourneVic.Australia
- Department of Microbiology and ImmunologyBio21 Institute and Peter Doherty InstituteThe University of MelbourneMelbourneVic.Australia
| | - Shazia Ruybal‐Pesántez
- School of BioSciencesBio21 InstituteThe University of MelbourneMelbourneVic.Australia
- Present address:
Population Health and Immunity Division, Walter and Eliza Hall Institute of Medical ResearchMelbourneVic.Australia
- Present address:
Department of Medical Biology and Bio21 InstituteThe University of MelbourneMelbourneVic.Australia
- Present address:
Burnet InstituteMelbourneVic.Australia
| | - Samantha L. Deed
- School of BioSciencesBio21 InstituteThe University of MelbourneMelbourneVic.Australia
- Department of Microbiology and ImmunologyBio21 Institute and Peter Doherty InstituteThe University of MelbourneMelbourneVic.Australia
| | - Abraham R. Oduro
- Navrongo Health Research CentreGhana Health ServiceNavrongoGhana
| | - Samuel K. Dadzie
- Noguchi Memorial Institute for Medical ResearchUniversity of GhanaLegonGhana
| | - Maxwell A. Appawu
- Noguchi Memorial Institute for Medical ResearchUniversity of GhanaLegonGhana
| | - Victor Asoala
- Navrongo Health Research CentreGhana Health ServiceNavrongoGhana
| | - Mercedes Pascual
- Department of Ecology and EvolutionUniversity of ChicagoChicagoUSA
| | - Kwadwo A. Koram
- Noguchi Memorial Institute for Medical ResearchUniversity of GhanaLegonGhana
| | - Karen P. Day
- School of BioSciencesBio21 InstituteThe University of MelbourneMelbourneVic.Australia
- Department of Microbiology and ImmunologyBio21 Institute and Peter Doherty InstituteThe University of MelbourneMelbourneVic.Australia
| | - Kathryn E. Tiedje
- School of BioSciencesBio21 InstituteThe University of MelbourneMelbourneVic.Australia
- Department of Microbiology and ImmunologyBio21 Institute and Peter Doherty InstituteThe University of MelbourneMelbourneVic.Australia
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