1
|
Feelemyer J, Duncan DT, Akhidenor N, Mazumdar M, Irvine NM, Scheidell JD, Brewer RA, Turpin RE, Hucks-Ortiz C, Dyer TV, Cleland CM, Mayer KH, Khan MR. Police Harassment and Psychiatric, Sexual, and Substance Use Risk Among Black Sexual Minority Men and Black Transgender Women in the HIV Prevention Trials 061 Cohort. J Racial Ethn Health Disparities 2024:10.1007/s40615-024-01909-1. [PMID: 38609695 DOI: 10.1007/s40615-024-01909-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 12/15/2023] [Accepted: 01/04/2024] [Indexed: 04/14/2024]
Abstract
BACKGROUND Black sexual minority men and Black transgender women (BSMM/BTW) experience disproportionate levels of HIV/STI-related risk factors as well as police harassment (PH). PH is linked to psychiatric risk and could play a role in substance use, sexual risk behavior, and HIV/STI risk. METHODS We used data from the HIV Prevention Trials Network 061(HPTN 061) study to examine associations between PH and HIV/STI-related outcomes. Using PH exposure measured at baseline and 6-month study visits, we examined an ordinal exposure (PH reported at both visits, PH reported at either visit, versus PH reported at neither baseline nor 6 months) and a binary exposure of persistent PH reported at both visits (yes versus no). We estimate risk ratios (RR) for associations between PH and depression, use of alcohol and methamphetamine, multiple partnerships, condomless sex, and syphilis. RESULTS Persistent PH (binary) was associated with a 20% or greater increase in the risk of depression (RR, 1.26 (1.07, 1.47)) and multiple partnerships (RR, 1.20 (1.05, 1.39)). There was evidence that ordinal PH was associated with elevated risk of alcohol use (RR, 1.17 (1.00, 1.36)); the point estimate for the association between persistent PH and alcohol use was similar but the imprecision was greater (RR, 1.16 (0.95, 1.42)). CONCLUSION PH may influence not only mental health but also behavioral risks that contribute to HIV/STI among BSMM/BTW, highlighting the potential wide-ranging and downstream effects of PH on health. Further research is required to confirm associations and elucidate pathways through which PH may influence HIV/STI among BSMM/BTW.
Collapse
Affiliation(s)
- Jonathan Feelemyer
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA.
| | - Dustin T Duncan
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Naomi Akhidenor
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Medha Mazumdar
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Natalia M Irvine
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Joy D Scheidell
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | | | - Rodman E Turpin
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, MD, USA
| | | | - Typhanye V Dyer
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, MD, USA
| | - Charles M Cleland
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Kenneth H Mayer
- Fenway Institute, Fenway Health and Department of Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA, USA
| | - Maria R Khan
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| |
Collapse
|
2
|
Feelemyer J, Abrams J, Mazumdar M, Irvine NM, Scheidell JD, Turpin RE, Dyer TV, Brewer RA, Hucks-Ortiz C, Caniglia EC, Remch M, Scanlon F, Gaydos CA, Sandh S, Cleland CM, Mayer KH, Khan MR. Age Differences in the Associations Between Incarceration and Subsequent Substance Use, Sexual Risk-Taking, and Incident STI Among Black Sexual Minority Men and Black Transgender Women in the HIV Prevention Trials 061 Cohort. Am J Mens Health 2023; 17:15579883231204120. [PMID: 37942721 PMCID: PMC10637158 DOI: 10.1177/15579883231204120] [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: 04/28/2023] [Revised: 08/30/2023] [Accepted: 09/12/2023] [Indexed: 11/10/2023] Open
Abstract
Incarceration can lead to different risk behaviors often due to increased distress and disruption of social networks. It is not well known, however, how these associations may differ by age. In this study, we measure age differences in longitudinal associations between incarceration and substance use, sex risk, and sexually transmitted infection (STI) among Black sexual minority men and Black transgender women (BSMM/BTW). We recruited BSMM/BTW from 2009 to 2011 that were part of the HIV Prevention Trials Network 061 study. We compared those less than 30 years old (n = 375) to those 30 years old or greater (n = 794) examining substance use, sex risk, and STI infection stratified by age. Logistic regression with inverse probability weighting was used for the statistical analysis. Approximately 59% of the sample reported incarceration history. In adjusted analysis, incarceration was more strongly associated with alcohol use and stimulant use among older individuals as was sexual risk behaviors including buying and selling sex. Concurrent partnerships were associated with the younger age groups. STI incidence was associated with younger individuals while associations with HIV infection were similar for the two age groups. Understanding differences in substance use and STI risk among age cohorts is imperative to the design and implementation of re-entry programs. Younger BSMM/BTW participating in re-entry support programs may benefit in particular from HIV/STI prevention and care efforts, while post-release substance abuse treatment and harm reduction programs should target older individuals with continued substance abuse.
Collapse
Affiliation(s)
- Jonathan Feelemyer
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Jasmyn Abrams
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Medha Mazumdar
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Natalia M. Irvine
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Joy D. Scheidell
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Rodman E. Turpin
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, MD, USA
| | - Typhanye V. Dyer
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, MD, USA
| | | | | | - Ellen C. Caniglia
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Molly Remch
- UNC Gillings School of Global Public Health, Chapel Hill, NC, USA
| | - Faith Scanlon
- Department of Psychological Sciences, Texas Tech University, Lubbock, TX, USA
| | | | - Simon Sandh
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Charles M. Cleland
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| | - Kenneth H. Mayer
- The Fenway Institute, Fenway Health, Boston, MA, USA
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Maria R. Khan
- Department of Population Health, New York University Grossman School of Medicine, New York, NY, USA
| |
Collapse
|
3
|
Khan MR, Hoff L, Elliott L, Scheidell JD, Pamplin JR, Townsend TN, Irvine NM, Bennett AS. Racial/ethnic disparities in opioid overdose prevention: comparison of the naloxone care cascade in White, Latinx, and Black people who use opioids in New York City. Harm Reduct J 2023; 20:24. [PMID: 36841763 PMCID: PMC9959933 DOI: 10.1186/s12954-023-00736-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 01/12/2023] [Indexed: 02/27/2023] Open
Abstract
BACKGROUND Drug overdose mortality is rising precipitously among Black people who use drugs. In NYC, the overdose mortality rate is now highest in Black (38.2 per 100,000) followed by the Latinx (33.6 per 100,000) and white (32.7 per 100,000) residents. Improved understanding of access to harm reduction including naloxone across racial/ethnic groups is warranted. METHODS Using data from an ongoing study of people who use illicit opioids in NYC (N = 575), we quantified racial/ethnic differences in the naloxone care cascade. RESULTS We observed gaps across the cascade overall in the cohort, including in naloxone training (66%), current possession (53%) daily access during using and non-using days (21%), 100% access during opioid use (20%), and complete protection (having naloxone and someone who could administer it present during 100% of opioid use events; 12%). Naloxone coverage was greater in white (training: 79%, possession: 62%, daily access: 33%, access during use: 27%, and complete protection: 13%, respectively) and Latinx (training: 67%, possession: 54%, daily access: 22%, access during use: 24%, and complete protection: 16%, respectively) versus Black (training: 59%, possession: 48%, daily access:13%, access during use: 12%, and complete protection: 8%, respectively) participants. Black participants, versus white participants, had disproportionately low odds of naloxone training (OR 0.40, 95% CI 0.22-0.72). Among participants aged 51 years or older, Black race (versus white, the referent) was strongly associated with lower levels of being trained in naloxone use (OR 0.20, 95% CI 0.07-0.63) and having 100% naloxone access during use (OR 0.34, 95% CI 0.13-0.91). Compared to white women, Black women had 0.27 times the odds of being trained in naloxone use (95% CI 0.10-0.72). CONCLUSIONS There is insufficient protection by naloxone during opioid use, with disproportionately low access among Black people who use drugs, and a heightened disparity among older Black people and Black women.
Collapse
Affiliation(s)
- Maria R. Khan
- grid.137628.90000 0004 1936 8753Department of Population Health, New York University Grossman School of Medicine, New York, NY USA ,grid.137628.90000 0004 1936 8753Center for Drug Use and HIV/HCV Research, New York University School of Global Public Health, New York, NY USA ,grid.137628.90000 0004 1936 8753Center for Opioid Epidemiology and Policy, New York University Grossman School of Medicine, New York, NY USA
| | - Lee Hoff
- grid.137628.90000 0004 1936 8753Department of Population Health, New York University Grossman School of Medicine, New York, NY USA
| | - Luther Elliott
- grid.137628.90000 0004 1936 8753Center for Drug Use and HIV/HCV Research, New York University School of Global Public Health, New York, NY USA ,grid.137628.90000 0004 1936 8753Center for Opioid Epidemiology and Policy, New York University Grossman School of Medicine, New York, NY USA ,grid.137628.90000 0004 1936 8753Department of Social and Behavioral Sciences, New York University School of Global Public Health, New York, NY USA
| | - Joy D. Scheidell
- grid.137628.90000 0004 1936 8753Department of Population Health, New York University Grossman School of Medicine, New York, NY USA ,grid.137628.90000 0004 1936 8753Center for Drug Use and HIV/HCV Research, New York University School of Global Public Health, New York, NY USA ,grid.137628.90000 0004 1936 8753Center for Opioid Epidemiology and Policy, New York University Grossman School of Medicine, New York, NY USA
| | - John R. Pamplin
- grid.137628.90000 0004 1936 8753Center for Opioid Epidemiology and Policy, New York University Grossman School of Medicine, New York, NY USA ,grid.21729.3f0000000419368729Columbia University Mailman School of Public Health, Department of Epidemiology, New York, NY USA
| | - Tarlise N. Townsend
- grid.137628.90000 0004 1936 8753Department of Population Health, New York University Grossman School of Medicine, New York, NY USA ,grid.137628.90000 0004 1936 8753Center for Opioid Epidemiology and Policy, New York University Grossman School of Medicine, New York, NY USA
| | - Natalia M. Irvine
- grid.137628.90000 0004 1936 8753Department of Population Health, New York University Grossman School of Medicine, New York, NY USA
| | - Alex S. Bennett
- grid.137628.90000 0004 1936 8753Center for Drug Use and HIV/HCV Research, New York University School of Global Public Health, New York, NY USA ,grid.137628.90000 0004 1936 8753Center for Opioid Epidemiology and Policy, New York University Grossman School of Medicine, New York, NY USA ,grid.137628.90000 0004 1936 8753Center for Anti-Racism, Social Justice, and Public Health, New York University School of Global Public Health, New York, NY USA
| |
Collapse
|
4
|
Scheidell JD, Kapadia F, Turpin RE, Mazumdar M, Dyer TV, Feelemyer J, Cleland CM, Brewer R, Parker SD, Irvine NM, Remch M, Mayer KH, Khan MR. Incarceration, Social Support Networks, and Health among Black Sexual Minority Men and Transgender Women: Evidence from the HPTN 061 Study. Int J Environ Res Public Health 2022; 19:12064. [PMID: 36231367 PMCID: PMC9564690 DOI: 10.3390/ijerph191912064] [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] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Support from social networks buffers against negative effects of stress but is disrupted by incarceration. Few studies examine incarceration, social support networks, and health among Black sexual minority men (BSMM) and Black transgender women (BTW). We conducted a secondary analysis using HIV Prevention Trials Network 061 (HPTN 061), a sample of BSMM/BTW recruited from six US cities. We measured associations between recent incarceration reported at six months follow-up and social support networks at twelve months follow-up, and cross-sectional associations between support networks and twelve-month health outcomes (e.g., sexual partnerships, substance use, healthcare access and depressive symptoms). Among the analytic sample (N = 1169), recent incarceration was associated with small medical support networks (adjusted risk ratio [aRR] 1.16, 95% CI 1.01, 1.34) and small financial support networks (aRR 1.18, 95% CI 1.04, 1.35). Support networks were associated with multiple partnerships (adjusted prevalence ratio [aPR] 0.77, 95% CI 0.65, 0.90), unhealthy alcohol use (aPR 1.20, 95% CI 0.96, 1.51), and depressive symptoms (aPR 1.16, 95% CI 0.99, 1.36). Incarceration adversely impacts social support networks of BSMM/BTW, and support networks were associated with a range of important health outcomes.
Collapse
Affiliation(s)
- Joy D. Scheidell
- Department of Population Health, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Farzana Kapadia
- School of Global Public Health, New York University, New York, NY 10012, USA
| | - Rodman E. Turpin
- School of Public Health, Epidemiology and Biostatistics, University of Maryland at College Park, College Park, MD 20742, USA or
- Department of Global and Community Health, College of Health and Human Services, George Mason University, Fairfax, VA 22030, USA
| | - Medha Mazumdar
- Department of Population Health, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Typhanye V. Dyer
- School of Public Health, Epidemiology and Biostatistics, University of Maryland at College Park, College Park, MD 20742, USA or
| | - Jonathan Feelemyer
- Department of Population Health, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Charles M. Cleland
- Department of Population Health, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Russell Brewer
- Department of Medicine, University of Chicago, Chicago, IL 60637, USA
| | - Sharon D. Parker
- Department of Social Work, North Carolina Agricultural and Technical State University, Greensboro, NC 27411, USA
| | - Natalia M. Irvine
- Department of Population Health, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Molly Remch
- Department of Epidemiology, UNC Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Kenneth H. Mayer
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA 02115, USA
- The Fenway Institute, Fenway Health, Boston, MA 02215, USA
| | - Maria R. Khan
- Department of Population Health, New York University Grossman School of Medicine, New York, NY 10016, USA
| |
Collapse
|
5
|
Hoff L, Scheidell JD, Mazumdar M, Feelemyer J, Dyer TV, Turpin RE, Cleland CM, Caniglia EC, Remch M, Brewer R, Hucks-Ortiz C, Irvine NM, Mayer KH, Khan MR. The associations of incarceration and depression with healthcare experiences and utilization among Black men who have sex with men in HPTN 061. AIDS Care 2022; 34:1169-1178. [PMID: 34384304 PMCID: PMC8837705 DOI: 10.1080/09540121.2021.1966695] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/03/2021] [Indexed: 01/26/2023]
Abstract
Associations of incarceration with healthcare access and utilization among Black sexual minority men (BSMM) and differences in association among those with and without pre-incarceration symptoms of depression were measured. Secondary analysis using survey data from the longitudinal cohort HIV Prevention Trials Network 061 study was conducted among 1553 BSMM from six major U.S. cities from 2009 to 2011. We used modified log-binomial regression with robust standard errors to estimate associations of incarceration (reported at 6 month follow-up) on next six-month healthcare utilization and access (reported at the 12 month follow-up). We tested the significance of baseline depressive symptoms by incarceration interaction and reported differences in associations when observed. Participants with a history of incarceration were more likely to have depressive symptoms at baseline compared to those without. Recent incarceration was associated with almost twice the risk of mistrust in healthcare providers and emergency room utilization. Among men reporting depressive symptoms, a history of incarceration was associated with almost tripled risk of reporting providers do not communicate understandably. Among those with depression, one in five reported a missed visit regardless of incarceration status.
Collapse
Affiliation(s)
- Lee Hoff
- SUNY Downstate Medical Center School of Public Health, New York, NY
- New York University Grossman School of Medicine, Department of Population Health, New York, NY
| | - Joy D Scheidell
- New York University Grossman School of Medicine, Department of Population Health, New York, NY
| | - Medha Mazumdar
- New York University Grossman School of Medicine, Department of Population Health, New York, NY
| | - Jonathan Feelemyer
- New York University Grossman School of Medicine, Department of Population Health, New York, NY
| | - Typhanye V Dyer
- University of Maryland School of Public Health, Department of Epidemiology and Biostatistics, College Park, MD
| | - Rodman E Turpin
- University of Maryland School of Public Health, Department of Epidemiology and Biostatistics, College Park, MD
| | - Charles M Cleland
- New York University Grossman School of Medicine, Department of Population Health, New York, NY
| | - Ellen C Caniglia
- New York University Grossman School of Medicine, Department of Population Health, New York, NY
| | - Molly Remch
- University of North Carolina at Chapel Hill Gillings School of Global Public Health, Department of Epidemiology, Chapel Hill, NC
| | - Russell Brewer
- University of Chicago, Department of Medicine, Chicago, IL
| | | | - Natalia M Irvine
- New York University Grossman School of Medicine, Department of Population Health, New York, NY
| | | | - Maria R Khan
- New York University Grossman School of Medicine, Department of Population Health, New York, NY
| |
Collapse
|
6
|
Khan MR, Brewer R, Abrams J, Mazumdar M, Scheidell JD, Feelemyer J, Dyer TV, Turpin RE, Hucks-Ortiz C, Gaydos CA, Severe M, Irvine NM, Kaufman JS, Cleland CM, Mayer KH. Incarceration and Sexual Risk Behavior and Incident Sexually Transmitted Infection/HIV in HIV Prevention Trials Network 061: Differences by Study City and Among Black Sexual Minority Men Who Have Sex With Men, Black Sexual Minority Men Who Have Sex With Men and Women, and Black Transgender Women. Sex Transm Dis 2022; 49:284-296. [PMID: 35312668 PMCID: PMC9387752 DOI: 10.1097/olq.0000000000001594] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Black sexual minority men (BSMM) and Black transgender women face a disproportionate risk of incarceration and sexually transmitted infection (STI)/HIV, yet research on the longitudinal association between incarceration and STI/HIV risk in these groups is limited. METHODS We used data from the HIV Prevention Trials Network (HPTN) 061 study conducted among BSMM and Black transgender women in Atlanta, Boston, Los Angeles, New York City, San Francisco, and Washington, DC, restricting analyses to those who returned for the 6-month follow-up visit when recent incarceration was measured (n = 1169). Using inverse probability of treatment weighting, we measured associations between incarceration and next 6-month multiple partnerships; selling or buying sex; condomless anal intercourse; and incident chlamydia, gonorrhea, syphilis, and HIV. We explored differences by study city, and among BSMM who had sex with men only, BSMM who had sex with men and women, and Black transgender women. RESULTS Approximately 14% reported past 6-month incarceration. Incarceration was associated with next 6-month selling sex (adjusted risk ratio [ARR], 1.80; 95% confidence interval [CI], 1.12-2.87) in the overall sample and multiple partnerships among BSMM who had sex with men and women (ARR, 1.34; 95% CI, 1.10-1.63) and transgender women (ARR, 1.77; 95% CI, 1.22-2.57). There is evidence suggesting that incarceration may predict gonorrhea (ARR, 2.35; 95% CI, 0.95-5.77), with particularly strong associations observed in Los Angeles (ARR, 6.48; 95% CI, 1.48-28.38). CONCLUSIONS Incarceration may increase STI/HIV risk among BSMM and Black transgender women. Additional mixed-methods research is needed to validate associations and understand pathways.
Collapse
Affiliation(s)
- Maria Rabia Khan
- From the Department of Population Health, New York University School of Medicine, New York, University, New York, NY
| | - Russell Brewer
- Department of Medicine, University of Chicago, Chicago, IL
| | - Jasmyn Abrams
- From the Department of Population Health, New York University School of Medicine, New York, University, New York, NY
| | - Medha Mazumdar
- From the Department of Population Health, New York University School of Medicine, New York, University, New York, NY
| | - Joy D Scheidell
- From the Department of Population Health, New York University School of Medicine, New York, University, New York, NY
| | - Jonathan Feelemyer
- From the Department of Population Health, New York University School of Medicine, New York, University, New York, NY
| | - Typhanye V Dyer
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, MD
| | - Rodman E Turpin
- Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, MD
| | | | - Charlotte A Gaydos
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University, Baltimore, MD
| | - MacRegga Severe
- From the Department of Population Health, New York University School of Medicine, New York, University, New York, NY
| | - Natalia M Irvine
- From the Department of Population Health, New York University School of Medicine, New York, University, New York, NY
| | - Jay S Kaufman
- Department of Epidemiology, Biostatistics, and Occupational Health, McGill University, Montreal, Quebec, Canada
| | - Charles M Cleland
- From the Department of Population Health, New York University School of Medicine, New York, University, New York, NY
| | - Kenneth H Mayer
- The Fenway Institute, and Department of Medicine, Beth Israel Deaconess Medical Center/Harvard Medical School, Boston, MA
| |
Collapse
|
7
|
Irvine NM, Rose PA, Cutler AJ, Squires TM, Abrams SR. Anthracenone ABA analogue as a potential photoaffinity reagent for ABA-binding proteins. Phytochemistry 2000; 53:349-355. [PMID: 10703056 DOI: 10.1016/s0031-9422(99)00482-3] [Citation(s) in RCA: 4] [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: 05/23/2023]
Abstract
An anthracenone analogue of abscisic acid (ABA) was synthesized as a potential photoaffinity reagent and tested for biological activity. Reaction between 10,10'-dimethoxy-9-anthrone with two equivalents of the lithiated dianion of cis-3-methylpent-2-en-4-yn-1-ol afforded an acetylenic alcohol key intermediate. Subsequent reduction of the triple bond, functional group manipulation of the side chain alcohol and deprotection of the dimethoxy protected anthrone provided anthracenone ABA analogue 7 as a potential photoaffinity reagent for ABA-binding proteins. The effect of natural ABA and the potential photoaffinity anthracenone ABA 7 on corn cell growth was determined at various concentrations. The results show that anthracenone ABA 7 is perceived as ABA-like, although producing less inhibition than ABA itself. For example, 7 at 33 microM produces approximately the same inhibition as ABA at 10 microM.
Collapse
Affiliation(s)
- N M Irvine
- Plant Biotechnology Institute, National Research Council of Canada, Saskatoon, Sask, Canada
| | | | | | | | | |
Collapse
|