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Logie CH, MacKenzie F, Malama K, Lorimer N, Lad A, Zhao M, Narasimhan M, Fahme S, Turan B, Kagunda J, Konda K, Hasham A, Perez-Brumer A. Sexual and reproductive health among forcibly displaced persons in urban environments in low and middle-income countries: scoping review findings. Reprod Health 2024; 21:51. [PMID: 38609975 PMCID: PMC11010352 DOI: 10.1186/s12978-024-01780-7] [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: 06/28/2023] [Accepted: 03/22/2024] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND Most forcibly displaced persons are hosted in low- and middle-income countries (LMIC). There is a growing urbanization of forcibly displaced persons, whereby most refugees and nearly half of internally displaced persons live in urban areas. This scoping review assesses the sexual and reproductive health (SRH) needs, outcomes, and priorities among forcibly displaced persons living in urban LMIC. METHODS Following The Joanna Briggs Institute scoping review methodology we searched eight databases for literature published between 1998 and 2023 on SRH needs among urban refugees in LMIC. SHR was operationalized as any dimension of sexual health (comprehensive sexuality education [CSE]; sexual and gender based violence [GBV]; HIV and STI prevention and control; sexual function and psychosexual counseling) and/or reproductive health (antental, intrapartum, and postnatal care; contraception; fertility care; safe abortion care). Searches included peer-reviewed and grey literature studies across quantitative, qualitative, or mixed-methods designs. FINDINGS The review included 92 studies spanning 100 countries: 55 peer-reviewed publications and 37 grey literature reports. Most peer-reviewed articles (n = 38) discussed sexual health domains including: GBV (n = 23); HIV/STI (n = 19); and CSE (n = 12). Over one-third (n = 20) discussed reproductive health, including: antenatal, intrapartum and postnatal care (n = 13); contraception (n = 13); fertility (n = 1); and safe abortion (n = 1). Eight included both reproductive and sexual health. Most grey literature (n = 29) examined GBV vulnerabilities. Themes across studies revealed social-ecological barriers to realizing optimal SRH and accessing SRH services, including factors spanning structural (e.g., livelihood loss), health institution (e.g., lack of health insurance), community (e.g., reduced social support), interpersonal (e.g., gender inequitable relationships), and intrapersonal (e.g., low literacy) levels. CONCLUSIONS This review identified displacement processes, resource insecurities, and multiple forms of stigma as factors contributing to poor SRH outcomes, as well as producing SRH access barriers for forcibly displaced individuals in urban LMIC. Findings have implications for mobilizing innovative approaches such as self-care strategies for SRH (e.g., HIV self-testing) to address these gaps. Regions such as Africa, Latin America, and the Caribbean are underrepresented in research in this review. Our findings can guide SRH providers, policymakers, and researchers to develop programming to address the diverse SRH needs of urban forcibly displaced persons in LMIC. Most forcibly displaced individuals live in low- and middle-income countries (LMICs), with a significant number residing in urban areas. This scoping review examines the sexual and reproductive health (SRH) outcomes of forcibly displaced individuals in urban LMICs. We searched eight databases for relevant literature published between 1998 and 2023. Inclusion criteria encompassed peer-reviewed articles and grey literature. SRH was defined to include various dimensions of sexual health (comprehensive sexuality education; sexual and gender-based violence; HIV/ STI prevention; sexual function, and psychosexual counseling) and reproductive health (antenatal, intrapartum, and postnatal care; contraception; fertility care; and safe abortion care). We included 90 documents (53 peer-reviewed articles, 37 grey literature reports) spanning 100 countries. Most peer-reviewed articles addressed sexual health and approximately one-third centered reproductive health. The grey literature primarily explored sexual and gender-based violence vulnerabilities. Identified SRH barriers encompassed challenges across structural (livelihood loss), health institution (lack of insurance), community (reduced social support), interpersonal (gender inequities), and individual (low literacy) levels. Findings underscore gaps in addressing SRH needs among urban refugees in LMICs specifically regarding sexual function, fertility care, and safe abortion, as well as regional knowledge gaps regarding urban refugees in Africa, Latin America, and the Caribbean. Self-care strategies for SRH (e.g., HIV self-testing, long-acting self-injectable contraception, abortion self-management) hold significant promise to address SRH barriers experienced by urban refugees and warrant further exploration with this population. Urgent research efforts are necessary to bridge these knowledge gaps and develop tailored interventions aimed at supporting urban refugees in LMICs.
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Affiliation(s)
- Carmen H Logie
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street W, Toronto, M5S 1V4, Canada.
- Centre for Gender and Sexual Health Equity, Vancouver, Canada.
- Women's College Research Institute, Women's College Hospital, Toronto, Canada.
- United Nations University Institute for Water, Environment, and Health, Hamilton, Canada.
| | - Frannie MacKenzie
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street W, Toronto, M5S 1V4, Canada
| | - Kalonde Malama
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street W, Toronto, M5S 1V4, Canada
| | - Nicole Lorimer
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street W, Toronto, M5S 1V4, Canada
| | - Anoushka Lad
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street W, Toronto, M5S 1V4, Canada
| | - Michelle Zhao
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street W, Toronto, M5S 1V4, Canada
| | - Manjulaa Narasimhan
- Department of Sexual and Reproductive Health and Research, including the UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction (HRP), World Health Organization, Geneva, Switzerland
| | - Sasha Fahme
- Center for Global Health, Weill Cornell Medicine, New York, NY, USA
- Department of Health Promotion and Community Health, Faculty of Health Sciences, American University of Beirut, Beirut, Lebanon
| | - Bülent Turan
- Department of Psychology, Koc University, Istanbul, Turkey
| | - Julia Kagunda
- Elim Trust, Nairobi, Kenya
- Daystar University, Nairobi, Kenya
| | - Kelika Konda
- Universidad Peruana Cayetano Heredia, Lima, Peru
- Department of Population and Public Health Sciences, Keck School of Medicine of USC, University of Southern California, Los Angeles, USA
| | - Aryssa Hasham
- Factor-Inwentash Faculty of Social Work, University of Toronto, 246 Bloor Street W, Toronto, M5S 1V4, Canada
| | - Amaya Perez-Brumer
- Universidad Peruana Cayetano Heredia, Lima, Peru
- Dalla Lana School of Public Health, University of Toronto, Toronto, Canada
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Navarro S, Keith K, Stafylis C, Konda K, Klausner JD. Safety of Linezolid During Pregnancy. Sex Transm Dis 2023; 50:e37-e40. [PMID: 37643415 DOI: 10.1097/olq.0000000000001860] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
ABSTRACT With growing maternal and congenital syphilis epidemics and shortages of benzathine penicillin, alternative syphilis treatments are needed. Linezolid has shown efficacy against syphilis in animal models. This review found no teratogenic effects. Some adverse effects were seen in animals, but none were reported in a small number of human studies.
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Affiliation(s)
- Sabrina Navarro
- From the Department of Population and Public Health Sciences, Keck School of Medicine of University of Southern California, Los Angeles, CA
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3
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Murphy L, Bowra A, Adams E, Cabello R, Clark JL, Konda K, Perez-Brumer A. PrEP policy implementation gaps and opportunities in Latin America and the Caribbean: a scoping review. Ther Adv Infect Dis 2023; 10:20499361231164030. [PMID: 37114192 PMCID: PMC10126665 DOI: 10.1177/20499361231164030] [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: 10/29/2022] [Accepted: 02/28/2023] [Indexed: 04/29/2023] Open
Abstract
Background Pre-exposure prophylaxis (PrEP) is an important tool for HIV prevention in Latin America and the Caribbean (LAC). Yet, little is known about the PrEP policies landscape in the region. Addressing this gap, this scoping review assessed current PrEP policies throughout LAC to better understand existing PrEP implementation gaps and identify opportunities to improve access. Methods We conducted a scoping review, using a modified PRISMA extension, through 28 July 2022, to identify country-level PrEP policies. Data were collected in English, Spanish, French, and Portuguese utilizing online platforms for screening and data extraction (Google Forms, Zotero, and Excel). Extracted data were divided by data source, including country-level government policies, gray literature, and peer-reviewed literature, with at least one full-text reviewer and data extractor per publication. An iterative summative content analysis was performed to compare and interpret themes across phases and data sources. Results Of the 33 countries in LAC, 22 (67%) had policies approving daily oral PrEP for HIV prevention, which outlined specific key populations, including men who have sex with men, transgender women, sex workers, and serodiscordant couples. Generic tenofovir disoproxil fumarate/emtricitabine has been approved in 15 of the 33 countries, and 13 of the 33 countries have incorporated PrEP into their public health system. No countries were found to have approved cabotegravir. Costing data were reported by only one country, Ecuador, in its national health ministry guidelines. Findings also document a lag between the media/gray-literature announcement of PrEP and implementation of policies. Conclusion Findings underscore significant advances in PrEP policies in the region and signal opportunities for greater PrEP implementation. Since 2017, an increasing number of countries have begun to provide PrEP to communities at heightened need, although significant gaps remain. Policy approval is a key step to further increasing access to PrEP in LAC, necessary to reduce the burden of HIV in LAC, specifically among marginalized populations.
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Affiliation(s)
- Luke Murphy
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Andrea Bowra
- Division of Social and Behavioural Health, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | - Ellithia Adams
- Division of Social and Behavioural Health, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
| | | | - Jesse L. Clark
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Kelika Konda
- Universidad Peruana Cayetano Heredia, Lima, Peru
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Amaya Perez-Brumer
- Division of Social and Behavioural Health, Dalla Lana School of Public Health, University of Toronto, 155 College Street, Toronto, ON, Canada, M5T 3M7
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4
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Konda K, Kojima N, Vargas SK, Calvo G, Reyes-Díaz M, Giacani L, Cáceres CF, Klausner JD. Syphilis naïve patients achieve treatment success more quickly: A comparison of time to syphilis treatment success in patients with repeat versus naïve infection. Clin Infect Dis 2021; 74:1887-1888. [PMID: 34596682 DOI: 10.1093/cid/ciab877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K Konda
- Division of Infectious Disease, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - N Kojima
- Division of Infectious Disease, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - S K Vargas
- Center for Interdisciplinary Studies in Sexuality, AIDS and Society, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - G Calvo
- Center for Interdisciplinary Studies in Sexuality, AIDS and Society, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - M Reyes-Díaz
- Center for Interdisciplinary Studies in Sexuality, AIDS and Society, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - L Giacani
- Department of Medicine, Division of Allergy and Infectious Diseases, and Department of Global Health, University of Washington, Seattle WA, United States
| | - C F Cáceres
- Center for Interdisciplinary Studies in Sexuality, AIDS and Society, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - J D Klausner
- Department of Medicine, Division of Allergy and Infectious Diseases, and Department of Global Health, University of Washington, Seattle WA, United States.,Department of Preventive Medicine, Keck School of Medicine University of Southern California, Los Angeles, CA, United States
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Flores JA, Coit J, Mendoza M, Leon SR, Konda K, Lecca L, Franke MF. Is exclusive breastfeeding for six-months protective against pediatric tuberculosis? Glob Health Action 2021; 14:1861922. [PMID: 33393436 PMCID: PMC7782219 DOI: 10.1080/16549716.2020.1861922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Experts recommend exclusive breastfeeding from birth to six months because it protects against deadly childhood illness, including respiratory tract infections and diarrhea. We hypothesized that exclusive breastfeeding would decrease the risk of active tuberculosis (TB) in children. We analyzed cross-sectional data from 279 children in Lima, Peru aged 6 to 59 months with TB symptoms and a close adult contact with TB. Mothers self-reported breastfeeding, and children were evaluated for TB per national guidelines. To quantify the association between exclusive breastfeeding and TB, we estimated prevalence ratios using a generalized linear model with a log link, binomial distribution, and robust variance. Twenty-two percent of children were diagnosed with TB and 72% were exclusively breastfed for six months. We found no evidence that six months of exclusive breastfeeding was associated with TB disease in either bivariate analyses (prevalence ratio [PR] = 1.5; 95%CI = 0.8–2.5) or multivariable analyses adjusting for sex and socioeconomic status (adjusted PR = 1.6; 95%[CI] = 0.9–2.7). In post hoc analyses among children whose close TB contact was their mother, we found evidence of a weak positive association between breastfeeding and TB (aPR = 2.1; 95%[CI] = 0.9–4.9). This association was not apparent among children whose close contact was not the mother (aPR = 1.2; 95%[CI] = 0.6–2.4). Our results raise the possibility that children who are breastfed by mothers with TB may be at increased risk for TB, given the close contact. Due to the cross-sectional study design, these results should be interpreted with caution. If these findings are confirmed in longitudinal analyses, future interventions could aim to minimize TB transmission from mothers with TB to breastfeeding infants.
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Affiliation(s)
- Juan A Flores
- Escuela Profesional de Tecnología Médica, Universidad Privada San Juan Bautista , Lima, Peru.,Facultad de Salud Pública, Universidad Peruana Cayetano Heredia , Lima, Peru
| | - Julia Coit
- Department of Global Health and Social Medicine, Harvard Medical School , Boston, MA, USA
| | - Milagros Mendoza
- Direction of Research, Socios En Salud at Partners in Health , Lima, Peru
| | - Segundo R Leon
- Escuela Profesional de Tecnología Médica, Universidad Privada San Juan Bautista , Lima, Peru
| | - Kelika Konda
- Division of Infectious Diseases, University of California , Los Angeles, CA, USA.,Center for Interdisciplinary Studies in Sexuality, AIDS and Society, and Laboratory of Sexual Health, Universidad Peruana Cayetano Heredia , Lima, Peru
| | - Leonid Lecca
- Direction of Research, Socios En Salud at Partners in Health , Lima, Peru
| | - Molly F Franke
- Department of Global Health and Social Medicine, Harvard Medical School , Boston, MA, USA
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Bórquez A, Rich K, Farrell M, Degenhardt L, McKetin R, Tran LT, Cepeda J, Silva‐Santisteban A, Konda K, Cáceres CF, Kelly S, Altice FL, Martin NK. Integrating HIV pre-exposure prophylaxis and harm reduction among men who have sex with men and transgender women to address intersecting harms associated with stimulant use: a modelling study. J Int AIDS Soc 2020; 23 Suppl 1:e25495. [PMID: 32562365 PMCID: PMC7305413 DOI: 10.1002/jia2.25495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 09/28/2019] [Revised: 02/27/2020] [Accepted: 04/03/2020] [Indexed: 12/11/2022] Open
Abstract
INTRODUCTION Among men who have sex with men (MSM) and transgender women (TW), stimulant use is high and has been associated with an increased risk of HIV infection, suicide and cardiovascular disease (CVD) mortality. We used epidemic modelling to investigate these intersecting health harms among MSM/TW in Lima, Peru and assess whether they could be mitigated by prioritizing HIV pre-exposure prophylaxis (PrEP) and harm reduction interventions among MSM/TW who use stimulants. METHODS We adapted a dynamic model of HIV transmission among MSM/TW in Lima to incorporate stimulant use and increased HIV risk, suicide and CVD mortality. Among 6% to 24% of MSM/TW using stimulants (mostly cocaine), we modelled an increased risk of unprotected anal sex (RR = 1.35 [95%CI: 1.17 to 1.57]) obtained from local data, and increased risk of suicide (SMR = 6.26 [95%CI: 2.84 to 13.80]) and CVD (SMR = 1.83 [95%CI: 0.39 to 8.57]) mortality associated with cocaine use based on a global systematic review. We estimated the proportion of health harms occurring among MSM/TW who use stimulants in the next year (01-2020/01-2021). We also investigated the 10-year impact (01-2020/01-2030) of: (1) PrEP prioritization for stimulant-using MSM/TW compared to random allocation, and (2) integrating PrEP with a theoretical intervention halving stimulant-associated risk. RESULTS MSM/TW in Lima will experience high HIV incidence, suicide mortality and CVD mortality (1.6/100 py, and 0.018/100 py, 0.13/100 py respectively) in 2020. Despite stimulant using MSM/TW comprising an estimated 9.5% (95%CI: 7.8 to 11.5) of all MSM/TW, in the next year, 11% 95%CI (i.e. 2.5% to 97.5% percentile) 10% to 13%) of new HIV infections, 39% (95%CI: 18% to 60%) of suicides and 15% (95%CI: 3% to 44%) of CVD deaths could occur among this group. Scaling up PrEP among all stimulant using MSM/TW could prevent 19% (95%CI: 11% to 31%) more HIV infections over 10 years compared to random allocation. Integrating PrEP and an intervention to halve stimulant-associated risks could reduce new HIV infections by 20% (95%CI: 10% to 37%), suicide deaths by 14% (95%CI: 5% to 27%) and CVD deaths by 3% (95%CI: 0% to 16%) over a decade. CONCLUSIONS MSM/TW who use stimulants experience a disproportionate burden of health harms. Prioritizing PrEP based on stimulant use, in addition to sexual behaviour/gender identity criteria, could increase its impact. Integrated substance use, harm reduction, mental health and HIV care among MSM/TW is needed.
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Affiliation(s)
- Annick Bórquez
- Department of MedicineUniversity of California San DiegoLa JollaCAUSA
- National Drug and Alcohol Research CenterUniversity of New South WalesSydneyNSWAustralia
| | | | - Michael Farrell
- National Drug and Alcohol Research CenterUniversity of New South WalesSydneyNSWAustralia
| | - Louisa Degenhardt
- National Drug and Alcohol Research CenterUniversity of New South WalesSydneyNSWAustralia
| | - Rebecca McKetin
- National Drug and Alcohol Research CenterUniversity of New South WalesSydneyNSWAustralia
| | - Lucy T. Tran
- National Drug and Alcohol Research CenterUniversity of New South WalesSydneyNSWAustralia
| | - Javier Cepeda
- Department of MedicineUniversity of California San DiegoLa JollaCAUSA
| | - Alfonso Silva‐Santisteban
- Centro de Investigación Interdisciplinaria en SexualidadSIDA y SociedadUniversidad Peruana Cayetano HerediaLimaPeru
| | - Kelika Konda
- Centro de Investigación Interdisciplinaria en SexualidadSIDA y SociedadUniversidad Peruana Cayetano HerediaLimaPeru
| | - Carlos F. Cáceres
- Centro de Investigación Interdisciplinaria en SexualidadSIDA y SociedadUniversidad Peruana Cayetano HerediaLimaPeru
| | - Sherrie Kelly
- Modelling and BiostatisticsBurnet InstituteMelbourneVICAustralia
| | - Frederick L. Altice
- National Drug and Alcohol Research CenterUniversity of New South WalesSydneyNSWAustralia
- Yale University Center for Interdisciplinary Research on AIDSNew HavenCTUSA
- Centre of Excellence in Research on AIDSFaculty of MedicineUniversity of MalayaKuala LumpurMalaysia
| | - Natasha K. Martin
- Department of MedicineUniversity of California San DiegoLa JollaCAUSA
- Population Health SciencesUniversity of BristolBristolUnited Kingdom
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Allan-Blitz LT, Rivera SV, Konda K, De Cortina SH, Caceres C, Klausner J. High Correlation of Visual Inspection and a Smartphone-Based Electronic Reader of Two Dual Rapid Diagnostic HIV/Syphilis Assays. Open Forum Infect Dis 2017. [PMCID: PMC5631601 DOI: 10.1093/ofid/ofx163.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background The HRDR-200 automated reader (Cellmic, LLC, CA, USA) is an opto-mechanical smartphone attachment that reads lateral flow-based rapid HIV/Syphilis combo assays. The reader may minimize human errors in interpreting rapid tests as well as provide a centralized data system for epidemiologic monitoring. Methods We enrolled men who have sex with men and transgender women >18 years old seeking services at a sexually transmitted disease clinic in Lima between October 2016 and April 2017. Venous blood was tested using two dual HIV and Syphilis rapid tests (SD BIOLINE HIV/Syphilis Duo (SD), Republic of Korea; and First Response HIV 1 + 2/Syphilis Combo (FR), India). HIV infection was confirmed with fourth-generation EIA tests, while Syphilis was confirmed with RPR, TPPA, and TPHA titers. Clinic staff visually inspected rapid tests, after which the tests were read by the HRDR-200. To assess how well the reader results correlated with visual inspection we calculated negative and positive percent agreement, concordance, and kappa statistic. Results Of 283 participants, 34% were HIV-infected and 46% had treponemal antibodies (69% of whom had reactive RPR titers). The concordance of reader results with visual inspection was high for both antibodies and both rapid assays (see Table). Conclusion Given the high correlation of the reader with visual inspection, further investigation is warranted into the potential utility of the reader for epidemiologic monitoring as well as for improving HIV and Syphilis diagnosis in areas without technicians trained in visual inspection of rapid tests. Disclosures All authors: No reported disclosures.
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Affiliation(s)
| | | | - Kelika Konda
- Department of Medicine, Division of Infectious Diseases and Center for World Health, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, Washington
| | - Sasha Herbst De Cortina
- Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Carlos Caceres
- Unit of Health, Sexuality and Human Development, and Laboratory of Sexual Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Jeffrey Klausner
- Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, Los Angeles, California
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Prochazka M, Otero L, Konda K, Gonzalez E, Gotuzzo E. Patient-Nominated Treatment Supporters And Retention in Care Among People Living With Human Immunodeficiency Virus/Acquired Immune Deficiency Syndrome (HIV/AIDS) in Peru. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Mateo Prochazka
- Instituto De Medicina Tropical Alexander Von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Larissa Otero
- Instituto De Medicina Tropical Alexander Von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Kelika Konda
- Department of Medicine, Division of Infectious Diseases and Center for World Health, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, California
| | - Elsa Gonzalez
- Instituto De Medicina Tropical Alexander Von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Eduardo Gotuzzo
- Department of Infectious, Tropical and Dermatological Diseases, Hospital Cayetano Heredia, Lima, Peru
- Instituto De Medicina Tropical “Alexander Von Humboldt”, Universidad Peruana Cayetano Heredia, Lima, Peru
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Maiorana A, Kegeles S, Salazar X, Konda K, Silva-Santiesteban A, Cáceres C. 'Proyecto Orgullo', an HIV prevention, empowerment and community mobilisation intervention for gay men and transgender women in Callao/Lima, Peru. Glob Public Health 2016; 11:1076-92. [PMID: 27373578 PMCID: PMC5034735 DOI: 10.1080/17441692.2016.1161814] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [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] [Indexed: 01/12/2023]
Abstract
We used qualitative, quantitative, and observational methods to assess the feasibility, acceptability, and potential efficacy of Proyecto Orgullo (PO), a pilot community mobilisation intervention to decrease sexual risk, promote health-seeking behaviours, and facilitate personal and community empowerment among gay men (GM) and transgender women (TW) in Peru. PO was adapted from Mpowerment and Hermanos de Luna y Sol, two US interventions. PO included six interrelated core elements: (1) Self-reflection Small Group sessions; (2) Supporting peers in HIV prevention; (3) Mobilisation Activities addressing HIV, GM/TW issues, and community empowerment; (4) A Core Group (staff + GM/TW volunteers) designing/implementing those activities; (5) A Project Space; (6) Publicity. PO included specific components for TW, but promoted that GM/TW, who historically have not worked well together, collaborate for a common goal. We found that PO was embraced by GM/TW. PO positively influenced GM/TW's HIV prevention beliefs, self-efficacy, and behaviours; provided social support and created community; facilitated individual and community empowerment; achieved that GM/TW collaborate; and established a functional Community Centre for socialising/conducting mobilisation activities. Community mobilisation strategies, lacking from HIV prevention efforts in Peru but considered key to HIV prevention, can help improve health-seeking behaviours and consolidate social norms supporting preventive behaviours among GM/TW.
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Affiliation(s)
- Andre Maiorana
- Center for AIDS Prevention Studies, University of California San Francisco, San Francisco, US
| | - Susan Kegeles
- Center for AIDS Prevention Studies, University of California San Francisco, San Francisco, US
| | - Ximena Salazar
- Unit of Health, Sexuality and Human Development, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Kelika Konda
- Department of Medicine, University of California Los Angeles, Los Angeles, US
| | | | - Carlos Cáceres
- Unit of Health, Sexuality and Human Development, Universidad Peruana Cayetano Heredia, Lima, Peru
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Kojima N, Bristow C, Maecker H, Rosenberg-Hasson Y, Leon S, Rivera SV, Konda K, Klausner J. A Pilot Study of 63 Cytokines in Patients With and Without Syphilis in Lima, Peru. Open Forum Infect Dis 2015. [DOI: 10.1093/ofid/ofv133.600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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11
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Caceres CF, Konda K, Silva-Santisteban A, Salazar X, Romero L, Leon S, Klausner JD. The Continuum of HIV Care in Peru - Where Are We Now? Key Lessons from an Estimation in the Context of Very Limited Data. AIDS Res Hum Retroviruses 2014. [DOI: 10.1089/aid.2014.5206.abstract] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Carlos F. Caceres
- Cayetano Heredia University, Unit of Health, Sexuality and Human Development, Lima, Peru
| | - Kelika Konda
- University of California at Los Angeles, Program in Global Health, Lima, Peru
| | | | - Ximena Salazar
- Cayetano Heredia University, Unit of Health, Sexuality and Human Development, Lima, Peru
| | - Lottie Romero
- Cayetano Heredia University, Unit of Health, Sexuality and Human Development, Lima, Peru
| | - Segundo Leon
- Cayetano Heredia University, Unit of Health, Sexuality and Human Development, Lima, Peru
| | - Jeffrey D. Klausner
- University of California at Los Angeles, School of Medicine, Los Angeles, CA, United States
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Clark J, Salvatierra J, Segura E, Salazar X, Konda K, Perez-Brumer A, Hall E, Klausner J, Caceres C, Coates T. Moderno love: sexual role-based identities and HIV/STI prevention among men who have sex with men in Lima, Peru. AIDS Behav 2013; 17:1313-28. [PMID: 22614747 DOI: 10.1007/s10461-012-0210-5] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Role-based sexual identities structure male same-sex partnerships and influence HIV/STI epidemiology among MSM in Latin America. We explored shifting relationships between sexual roles, identities and practices among MSM in Lima, Peru, and implications for HIV/STI prevention. Patterns of HIV/STI epidemiology reflected differential risks for transmission within role-based partnerships with relatively low prevalences of HIV, syphilis, and HSV-2 but higher prevalences of urethral gonorrhea/chlamydia among activo MSM compared with moderno and pasivo participants. Qualitative analysis of how MSM in Peru integrate sexual identities, roles, and practices identified four key themes: pasivo role as a gay approximation of cultural femininity; activo role as a heterosexual consolidation of masculinity; moderno role as a masculine reconceptualization of gay identity; and role-based identities as social determinants of partnership, network, and community formation. The concept of role-based sexual identities provides a framework for HIV prevention for Latin American MSM that integrates sexual identities, practices, partnerships, and networks.
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Affiliation(s)
- Jesse Clark
- Program in Global Health, Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, 10833 Leconte Avenue, CHS 37-121, Los Angeles, CA 90095, USA.
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Clark JL, Salvatierra HJ, Segura ER, Salazar X, Konda K, Galea J, Klausner JD, Coates TJ, Caceres CF. Frequency, patterns, and preferences of lubricant use during anal intercourse within male sexual partnerships in Lima, Peru: implications for a rectal microbicide HIV prevention intervention. AIDS Care 2012; 25:579-85. [PMID: 23082796 DOI: 10.1080/09540121.2012.726335] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Understanding current practices of lubricant use during anal intercourse can help to assess the contexts for the introduction of topical rectal microbicides as an HIV prevention tool for men who have sex with men (MSM). We used quantitative and qualitative methods to assess: current patterns of lubricant use; preferred characteristics of commercial lubricant formulations; and social and behavioral contexts of lubricant use within male sexual partnerships in Lima, Peru. Between 2007 and 2008, we conducted a quantitative behavioral survey with 547 MSM followed by qualitative individual and group interviews with 36 MSM from Lima, Peru. Approximately half of all participants in the quantitative survey (50.3%) reported using commercial lubricant during intercourse occasionally or consistently during the preceding two months, with lack of availability at the time of intercourse the most commonly reported reason for non-use. No clear preferences regarding the color, smell, taste, or viscosity of commercial lubricants were identified, and all participants who reported using a commercial lubricant used the same product ("Love-Lub"). In the qualitative analysis, participants characterized lubricant use as a sexual practice consistently controlled by the receptive partner, who typically obtained and applied lubricant independently, with or without the consent of the insertive partner. Quantitative findings supported this differential pattern of lubricant use, with men who reported sexual identities or roles consistent with receptive anal intercourse, including unprotected receptive intercourse, more likely to report lubricant use than MSM who claimed an exclusively insertive sexual role. Given the social, behavioral, and biological factors contributing to increased vulnerability for HIV and STI acquisition by the receptive partner in anal intercourse, delivery of a topical rectal microbicide as a lubricant formulation could provide an important HIV prevention resource for at-risk MSM in Lima, Peru.
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Affiliation(s)
- Jesse L Clark
- David Geffen School of Medicine at UCLA, Department of Medicine, Infectious Diseases/Program in Global Health, Los Angeles, CA, USA.
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Akl EA, Kennedy C, Konda K, Caceres CF, Horvath T, Ayala G, Doupe A, Gerbase A, Wiysonge CS, Segura ER, Schünemann HJ, Lo YR. Using GRADE methodology for the development of public health guidelines for the prevention and treatment of HIV and other STIs among men who have sex with men and transgender people. BMC Public Health 2012; 12:386. [PMID: 22640260 PMCID: PMC3490932 DOI: 10.1186/1471-2458-12-386] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2011] [Accepted: 03/21/2012] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The World Health Organization (WHO) Department of HIV/AIDS led the development of public health guidelines for delivering an evidence-based, essential package of interventions for the prevention and treatment of HIV and other sexually transmitted infections (STIs) among men who have sex with men (MSM) and transgender people in the health sector in low- and middle-income countries. The objective of this paper is to review the methodological challenges faced and solutions applied during the development of the guidelines. METHODS The development of the guidelines followed the WHO guideline development process, which utilizes the GRADE approach. We identified, categorized and labeled the challenges identified in the guidelines development process and described the solutions through an interactive process of in-person and electronic communication. RESULTS We describe how we dealt with the following challenges: (1) heterogeneous and complex interventions; (2) paucity of trial data; (3) selecting outcomes of interest; (4) using indirect evidence; (5) integrating values and preferences; (6) considering resource use; (7) addressing social and legal barriers; (8) wording of recommendations; and (9) developing global guidelines. CONCLUSION We were able to successfully apply the GRADE approach for developing recommendations for public health interventions. Applying the general principles of the approach while carefully considering specific challenges can enhance both the process and the outcome of guideline development.
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Affiliation(s)
- Elie A Akl
- Department of Medicine, State University of New York at Buffalo, NY, USA.
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Konda K, Celentano D, Kegeles S, Coates T, Caceres C. P2-S3.02 Latent class analysis of sexual risk patterns among heterosexually-identified, socially marginalised men in urban, coastal Peru. Br J Vener Dis 2011. [DOI: 10.1136/sextrans-2011-050108.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Cáceres CF, Konda K, Segura ER, Lyerla R. Epidemiology of male same-sex behaviour and associated sexual health indicators in low- and middle-income countries: 2003-2007 estimates. Sex Transm Infect 2008; 84 Suppl 1:i49-i56. [PMID: 18647866 PMCID: PMC2569188 DOI: 10.1136/sti.2008.030569] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/16/2008] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES To conduct a systematic review of published and unpublished data from research and public health information systems on the prevalence of male-to-male sex in the total male population; as well as among men who have sex with men (MSM), data on prevalence of heterosexual activity and heterosexual unions; prevalence of condom use with male and female partners; and prevalence of HIV infection and other sexually transmitted infections (STIs). METHODS Key indicators were defined (a) among men in the general population: prevalence of sex with a man ever and last year; (b) among MSM: prevalence of heterosexual experiences ever and last year; proportion of male-female transgenders; proportion of sex workers; prevalence of HIV and other STIs, condom use in last sexual encounter; consistent condom use with men last year; never used a condom with a man. With help from key informants, study searches were conducted in Pubmed, LILLACS, institutional databases, conference records and other sources. Methodology and quality of information were assessed, and the best data available for 2003-7 were selected. Indicator estimates from each study were used to propose regional estimate ranges. RESULTS A total of 83 new entries were entered into the database in addition to the previous 561, totalling 644. Of these, 107 showing 2003-7 data were selected. Many new studies came from sub-Saharan Africa, portraying hidden HIV epidemics among MSM. The most frequently reported estimate was HIV infection, with high estimate ranges in most of the regions, except for Middle East and North Africa and Eastern Europe. The next most frequently reported was lifetime frequency of heterosexual sex, showing that roughly 50% of MSM ever had sex with a woman. The small number of newer studies reporting prevalence of "sex with a man in last 12 months" between 2003 and 2007, did not warrant enough new evidence to revise our 2005 size estimates for MSM populations. CONCLUSIONS A considerable number of new studies with estimates of relevance to understanding sexual behaviour and HIV among MSM were identified, with an encouraging amount of new data coming from sub-Saharan Africa. However, limitations in the quality, utility and comparability of available information persist. At least three measures could be promoted for use in surveillance and academic studies: standardised indicators for MSM studies; standardised operational definitions of, and instructions to describe, variables; and standardised research designs and data gathering strategies. A prerequisite for this all is intense advocacy to ensure a social climate in which research into such matters is prioritised, resources are made available as needed and the human rights of MSM are respected.
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Affiliation(s)
- C F Cáceres
- Cayetano Heredia University, School of Public Health, Av Armendáriz 445, Lima 18, Peru.
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Zavaleta C, Fernández C, Konda K, Valderrama Y, Vermund SH, Gotuzzo E. High prevalence of HIV and syphilis in a remote native community of the Peruvian Amazon. Am J Trop Med Hyg 2007; 76:703-5. [PMID: 17426174 PMCID: PMC2745971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023] Open
Abstract
Little data are available on how HIV and other sexually transmitted infections (STIs) affect indigenous people in Latin America, including Peru. We conducted a sero-epidemiologic survey of HIV infection and syphilis in a native community, the Chayahuita, an indigenous population in the Amazon region of Peru. The seroprevalences of HIV and syphilis in adults were 7.5% (6 of 80) and 6.3% (5 of 80), respectively. None of the participants had ever used a condom. Male to male sexual behavior was common. At the current levels of HIV prevalence, there is the risk of a negative impact on the survival of the Chayahuita ethnic group as a whole. The outcomes of this study highlight the need for urgent medical and anthropologic approaches to stop HIV transmission in indigenous Amazonian communities.
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Affiliation(s)
- Carol Zavaleta
- Instituto de Medicina Tropical “Alexander von Humboldt,” Universidad Peruana Cayetano Heredia, Lima, Peru; Hospital de Apoyo Yurimaguas, Loreto, Peru; Facultad de Salud Pública, Universidad Peruana Cayetano Heredia, Lima, Peru; Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Connie Fernández
- Instituto de Medicina Tropical “Alexander von Humboldt,” Universidad Peruana Cayetano Heredia, Lima, Peru; Hospital de Apoyo Yurimaguas, Loreto, Peru; Facultad de Salud Pública, Universidad Peruana Cayetano Heredia, Lima, Peru; Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Kelika Konda
- Instituto de Medicina Tropical “Alexander von Humboldt,” Universidad Peruana Cayetano Heredia, Lima, Peru; Hospital de Apoyo Yurimaguas, Loreto, Peru; Facultad de Salud Pública, Universidad Peruana Cayetano Heredia, Lima, Peru; Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Yadira Valderrama
- Instituto de Medicina Tropical “Alexander von Humboldt,” Universidad Peruana Cayetano Heredia, Lima, Peru; Hospital de Apoyo Yurimaguas, Loreto, Peru; Facultad de Salud Pública, Universidad Peruana Cayetano Heredia, Lima, Peru; Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Sten H. Vermund
- Instituto de Medicina Tropical “Alexander von Humboldt,” Universidad Peruana Cayetano Heredia, Lima, Peru; Hospital de Apoyo Yurimaguas, Loreto, Peru; Facultad de Salud Pública, Universidad Peruana Cayetano Heredia, Lima, Peru; Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Eduardo Gotuzzo
- Instituto de Medicina Tropical “Alexander von Humboldt,” Universidad Peruana Cayetano Heredia, Lima, Peru; Hospital de Apoyo Yurimaguas, Loreto, Peru; Facultad de Salud Pública, Universidad Peruana Cayetano Heredia, Lima, Peru; Vanderbilt University School of Medicine, Nashville, Tennessee
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Cáceres C, Konda K, Pecheny M, Chatterjee A, Lyerla R. Estimating the number of men who have sex with men in low and middle income countries. Sex Transm Infect 2006; 82 Suppl 3:iii3-9. [PMID: 16735290 PMCID: PMC2576725 DOI: 10.1136/sti.2005.019489] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES To collect and analyse published and unpublished surveillance and research data on the prevalence of same sex sexual activity among male adults (including male-to-female transgenders and sex workers) in low and middle income countries. METHODS Key indicators were operationalised (ever sex with a man, sex with a man last year, high risk sex last year (as defined by unprotected anal sex or commercial sex)) and a database was designed for data collection. Searches were conducted (PubMed, databases (US Census Bureau, World Bank, conferences)) and regional informants helped. Reference reports were used to assess the methodology and quality of information in each record. The best data available per region were identified and indicator estimates were used to propose regional range estimates. RESULTS Of 561 studies on male sexual behaviour and/or MSM population characteristics, 67 addressed prevalence of sex between men, with diverse numbers per region and virtual unavailability in sub-Saharan Africa, Middle East/North Africa, and the English speaking Caribbean. Overall, data on lifetime prevalence of sex with men (among males) yielded figures of 3-5% for East Asia, 6-12% for South and South East Asia, 6-15% for Eastern Europe, and 6-20% for Latin America. Last year figures were approximately half of lifetime figures, and prevalence of high risk sex among MSM last year was approximately 40-60% in all regions except South Asia, where it is 70-90%. CONCLUSIONS Data available on the prevalence of male same sex sexual activity across regions are scarce (non-existent in some areas), with validity and comparability problems. In South and South East Asia, Eastern Europe, and Latin America, a lifetime prevalence of 6-20% was estimated, with smaller figures in East Asia. A cross cultural analysis of terminology and practices is needed, as is continued work on epidemiological and social analysis of male-male sexual practices in societies across regions.
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Uchida H, Naito N, Asada N, Wada M, Ikeda M, Kobayashi H, Asanagi M, Mori K, Fujita Y, Konda K, Kusuhara N, Kamioka T, Nakashima K, Honjo M. Secretion of authentic 20-kDa human growth hormone (20K hGH) in Escherichia coli and properties of the purified product. J Biotechnol 1997; 55:101-12. [PMID: 9232032 DOI: 10.1016/s0168-1656(97)00062-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Using Bacillus amyloliquefaciens neutral protease gene (npr), we have constructed a secretion system of 20-kDA human growth hormone (20K hGH) in E. coli. The secretion-signal region from npr was modified inserting a fragment coding a 2Lys-5Leu cluster. In this system we found that co-expression of glutathione reductase remarkably increased accumulation level of 20K hGH in periplasm and confirmed that secreted 20K hGH was correctly processed. The recombinant 20K hGH was highly purified and subjected to analyses of physicochemical properties and biological activities which are still unclear and controversial due to difficulty in preparing the sample with authentic structure. The secreted recombinant product had authentic disulfide linkages and showed molecular weight of 20,270.5 +/- 3.7 (theoretical value, 20,269.9). The results suggest that the recombinant 20K hGH is a full agonist on rat growth promotion and lipolysis stimulation in isolated rat adipose tissues. In particular, the lipolysis-stimulating activity of 20K hGH was distinct as compared with that of 22K hGH under physiological concentration. Cell proliferation activity via prolactin-receptor in Nb-2 lymphoma was obviously low as compared with that of 22K hGH.
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Affiliation(s)
- H Uchida
- Life Science Laboratories, Mitsui Toatsu Chemicals Inc., Chiba, Japan
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Yamaguchi Y, Konda K, Hayashi A. Studies on the chemical structure of neutral glycosphingolipids in eggs of the sea hare, Aplysia juliana. Biochim Biophys Acta 1992; 1165:110-8. [PMID: 1420340 DOI: 10.1016/0005-2760(92)90082-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Six neutral glycosphingolipids (GL-1-GL-6) were obtained from eggs of the sea hare (Aplysia juliana) and were characterized by FABMS, 1H-NMR, partial acid hydrolysis, methylation studies and GC analysis of the component sugars, fatty acids and long-chain bases. The following structures were determined to be Glc beta 1-1Cer (89%) and Gal beta 1-1Cer (11%) for GL-1, Glc beta 1-1Cer (47%) and Gal beta 1-1Cer (53%) for GL-2 having hydroxy fatty acids in the ceramide moiety, Gal beta 1-4Glc beta 1-1Cer for GL-3, Fuc alpha 1-2Gal beta 1-4Glc beta 1-1Cer for GL-4, Gal alpha 1-2Gal beta 1-4Glc beta 1-1Cer for GL-5 and GalNAc alpha 1-3(Gal alpha 1-2)Gal beta 1-4Glc beta 1-1Cer for GL-6. The fatty acid composition of each glycosphingolipid, except for GL-2, which contained 2-hydroxypalmitic acid, consisted of mostly saturated C16-C20 acids, especially palmitic acid and stearic acid. The long-chain bases of all glycosphingolipids consisted mainly of branched nonadeca-4-sphingenine and octadeca-4-sphingenine. GL-6, which was one of the major glycosphingolipids, may be a precursor of a series of phosphonoglycosphingolipids which have been isolated from the skin of A. kurodai.
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Affiliation(s)
- Y Yamaguchi
- Department of Chemistry, Faculty of Science and Technology, Kinki University, Osaka, Japan
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