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Nguyen MX, Reyes HL, Pence BW, Muessig KE, Hutton H, Latkin CA, Dowdy D, Chander G, Lancaster KE, Frangakis C, Sripaipan T, Tran HV, Go VF. Alcohol use as a mediator of the effect of two alcohol reduction interventions on mental health symptoms of ART clients in Vietnam. AIDS Care 2023; 35:1691-1699. [PMID: 36912652 PMCID: PMC10497730 DOI: 10.1080/09540121.2023.2183378] [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: 08/02/2022] [Accepted: 02/14/2023] [Indexed: 03/14/2023]
Abstract
We aimed to examine the mediating role of alcohol use in the pathway from the interventions to depression and anxiety symptoms using data from a randomized controlled trial among people living with HIV (PWH) with hazardous alcohol use (n = 440) in Thai Nguyen, Vietnam. Participants were randomized into either a combined intervention (CoI), a brief intervention (BI) and a standard of care arm. Both interventions were based on cognitive behavioral therapy and motivational enhancement therapy. Alcohol use was measured as the percentage of days abstinent from alcohol in the last 30 days. Symptoms of depression and anxiety were measured with the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7 scales. Alcohol use was a significant mediator of the effects of two alcohol interventions on depression symptoms, but not anxiety symptoms. There were significant indirect effects via alcohol use of both interventions on depression symptoms at 12 months (CoI: mean difference (MD) = -0.134; 95%CI: -0.251, -0.035); (BI: MD = -0.141; 95%CI: -0.261, -0.038). There were no significant direct or total effects of the interventions on either symptoms at 12 months. Interventions with a dual focus on mental health and alcohol disorders are needed to determine optimal ways to tackle these common comorbidities among PWH.
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Affiliation(s)
- M X Nguyen
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - H L Reyes
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - B W Pence
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - K E Muessig
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - H Hutton
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C A Latkin
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - D Dowdy
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - G Chander
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - K E Lancaster
- Department of Epidemiology, College of Public Health, Ohio State University, Columbus, OH, USA
| | - C Frangakis
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - T Sripaipan
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - H V Tran
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - V F Go
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Nguyen MX, Reyes HL, Pence BW, Muessig KE, Hutton HE, Latkin CA, Dowdy D, Chander G, Lancaster KE, Frangakis C, Sripaipan T, Tran HV, Go VF. Effects of Two Alcohol Reduction Interventions on Depression and Anxiety Symptoms of ART Clients in Vietnam. AIDS Behav 2022; 26:1829-1840. [PMID: 34807321 PMCID: PMC10144180 DOI: 10.1007/s10461-021-03532-1] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2021] [Indexed: 10/19/2022]
Abstract
Little is known about the potential mental health impacts of cognitive behavioral therapy and motivational interviewing interventions that focus on alcohol reduction among people with HIV (PWH). Our study aimed to assess the impact of two evidence-based alcohol reduction interventions on depression and anxiety symptoms of antiretroviral therapy (ART) clients with hazardous alcohol use. We conducted a secondary data analysis of data from a three-arm randomized controlled trial among ART clients in Thai Nguyen, Vietnam that evaluated the impacts of two alcohol reduction interventions in Vietnam. ART clients 18 years old or more with hazardous alcohol use (based on the Alcohol Use Disorders Identification Test-Consumption) were enrolled and randomized into one of three arms: Combined intervention, Brief intervention, and Standard of care (SOC). Symptoms of depression, measured with the Patient Health Questionnaire-9, and anxiety, measured with the Generalized Anxiety Disorder-7 scale, were assessed at baseline and 3, 6, and 12 months post-intervention. Generalized estimating equations were used to evaluate the effects of the interventions on depression and anxiety symptoms. The prevalence of depression and anxiety symptoms at baseline was 25.1% and 16.1%, respectively. Decreases in depression and anxiety symptoms were observed in all three arms from baseline to 12-month follow-up. There were no significant differences in depression and anxiety symptoms among participants receiving either intervention, relative to the SOC. Interventions with a dual focus on alcohol and mental health are needed to achieve more pronounced and sustainable improvements in depression and anxiety symptoms for PWH with hazardous alcohol use.
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Affiliation(s)
- M X Nguyen
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27516, USA.
| | - H L Reyes
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27516, USA
| | - B W Pence
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - K E Muessig
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27516, USA
| | - H E Hutton
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C A Latkin
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - D Dowdy
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - G Chander
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - K E Lancaster
- Department of Epidemiology, College of Public Health, Ohio State University, Columbus, OH, USA
| | - C Frangakis
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - T Sripaipan
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27516, USA
| | - H V Tran
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27516, USA
| | - V F Go
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 135 Dauer Dr, Chapel Hill, NC, 27516, USA
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Nguyen MX, Hershow RB, Blackburn NA, Bui QX, Latkin CA, Hutton H, Chander G, Dowdy D, Lancaster KE, Frangakis C, Sripaipan T, Tran HV, Go VF. "I refused to drink but they still forced me": A mixed-methods approach to understanding the pathways to reduce alcohol use among Vietnamese people with HIV. Soc Sci Med 2022; 301:114902. [PMID: 35306269 PMCID: PMC9167721 DOI: 10.1016/j.socscimed.2022.114902] [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: 02/23/2021] [Revised: 03/08/2022] [Accepted: 03/10/2022] [Indexed: 11/16/2022]
Abstract
AIMS This study explores the effects of two evidence-based alcohol reduction counseling interventions on readiness to change, alcohol abstinence self-efficacy, social support, and alcohol abstinence stigma among people with HIV (PWH) who have hazardous alcohol use in Vietnam. METHODS PWH receiving antiretroviral therapy (ART) were screened for hazardous drinking and randomized to one of three study arms: combined intervention (CoI), brief intervention (BI), and standard of care (SOC). A quantitative survey was conducted at baseline (N = 440) and 3-month post-intervention (N = 405), while in-depth interviews were conducted with a subset of BI and CoI participants at baseline (N = 14) and 3 months (N = 14). Data was collected from March 2016 to August 2017. A concurrent mixed-methods model was used to triangulate quantitative and qualitative data to cross-validate findings. RESULTS At 3 months, receiving the BI and CoI arms was associated with 2.64 and 3.50 points higher in mean readiness to change scores, respectively, compared to the SOC group (BI: β = 2.64, 95% CI: 1.17-4.12; CoI: β = 3.50, 95% CI 2.02-4.98). Mean alcohol abstinence self-efficacy scores were 4.03 and 3.93 points higher among the BI and CoI arm at 3 months, compared to SOC (BI: β = 4.03, 95% CI: 0.17-7.89; CoI: β = 3.93, 95% CI: 0.05-7.81). The impacts of the interventions on social support and alcohol abstinence stigma were not significant. Perceived challenges to refusing drinks at social events remained due to strong alcohol abstinence stigma and perceived negative support from family and friends who encouraged participants to drink posed additional barriers to reducing alcohol use. CONCLUSIONS Both the CoI and BI were effective in improving readiness to change and alcohol abstinence self-efficacy among PWH. Yet, participants still faced significant barriers to reducing their drinking due to social influences and pressure to drink. Interventions at different levels addressing social support and alcohol abstinence stigma are warranted.
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Affiliation(s)
- M X Nguyen
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - R B Hershow
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - N A Blackburn
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Q X Bui
- UNC Project Vietnam, Hanoi, Viet Nam
| | - C A Latkin
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - H Hutton
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - G Chander
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - D Dowdy
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - K E Lancaster
- Department of Epidemiology, College of Public Health, Ohio State University, Columbus, OH, USA
| | - C Frangakis
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - T Sripaipan
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - H V Tran
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; UNC Project Vietnam, Hanoi, Viet Nam
| | - V F Go
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Guo X, Peterson J, Tran HV. Quantitative homogenization in a balanced random environment. ELECTRON J PROBAB 2022. [DOI: 10.1214/22-ejp851] [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: 11/06/2022]
Affiliation(s)
- Xiaoqin Guo
- Department of Mathematical Sciences, University of Cincinnati
| | | | - Hung V. Tran
- Department of Mathematics, University of Wisconsin Madison
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Nguyen MX, Dowdy D, Latkin CA, Hutton HE, Chander G, Frangakis C, Lancaster KE, Sripaipan T, Bui QX, Tran HV, Go VF. Social support modifies the association between hazardous drinking and depression symptoms among ART clients in Vietnam. Drug Alcohol Depend 2020; 215:108249. [PMID: 32871505 PMCID: PMC8277424 DOI: 10.1016/j.drugalcdep.2020.108249] [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: 06/25/2020] [Revised: 08/05/2020] [Accepted: 08/17/2020] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Hazardous drinking is widespread among people with HIV (PWH). PWH are also vulnerable to depression due to HIV-related social stigma, and social support can play an important role in improving mental health for this population. No studies have explored whether social support modifies the association of hazardous drinking and depressive symptoms among PWH. METHODS We used baseline data from a randomized controlled trial of two evidence-based alcohol reduction interventions among antiretroviral therapy clients in Vietnam. Hazardous alcohol use was defined as having a score ≥8 for men and ≥ 7 for women on the Alcohol Use Disorders Identification Test. The presence of depression symptoms was defined as a score ≥ 5 on the Patient Health Questionnaire-9. Social support was measured with a 5-question modified version of the Medical Outcomes Study Social Support Instrument. Crude (CPRs) and adjusted prevalence ratios (aPRs) of the association were presented. RESULTS Hazardous drinking was significantly associated with increased likelihood of having depressive symptoms (aPR = 1.26;95%CI 1.04-1.52). Hazardous drinking and depression symptoms were not associated among those with high social support (aPR = 1.01;95%CI 0.76-1.35), but were associated among those with medium (aPR = 1.24;95%CI 0.92-1.69) and low social support (aPR = 1.71;95%CI 1.25-2.34). CONCLUSIONS Social support significantly modified the association between hazardous drinking and depression symptoms among ART clients in Vietnam. Interventions to decrease hazardous alcohol use are broadly indicated for PWH in Vietnam and other low-resource settings, but special attention or modifications may be needed to support mental health among those with lower levels of social support.
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Affiliation(s)
- M X Nguyen
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; Department of Epidemiology, Institute of Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Vietnam.
| | - D Dowdy
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - C A Latkin
- Department of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - H E Hutton
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - G Chander
- Department of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - C Frangakis
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - K E Lancaster
- Department of Epidemiology, College of Public Health, Ohio State University, Columbus, OH, USA
| | - T Sripaipan
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Q X Bui
- UNC Project Vietnam, Hanoi, Vietnam
| | - H V Tran
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA; UNC Project Vietnam, Hanoi, Vietnam
| | - V F Go
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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Heymann JJ, Yoxtheimer LM, Park HJ, Fernandez EM, Facey KE, Alperstein SA, Tran HV, Baek I, Scognamiglio T, Rennert H, Siddiqui MT, Song W. Preanalytic variables in quality and quantity of nucleic acids extracted from FNA specimens of thyroid gland nodules collected in CytoLyt: Cellularity and storage time. Cancer Cytopathol 2020; 128:656-672. [PMID: 32267620 DOI: 10.1002/cncy.22270] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 03/06/2020] [Accepted: 03/10/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Morphologic and genetic analysis of thyroid nodules may be performed from a single vial. Preanalytic variables that affect nucleic acid extracted from a single vial are evaluated. METHODS Thyroid fine-needle aspiration (FNA) specimens collected in CytoLyt were evaluated. A ThinPrep slide was prepared. Extracted nucleic acids were analyzed using Oncomine Comprehensive Panel, version 2, after Ion AmpliSeq library preparation. A pathologist and a cytotechnologist enumerated specimen cellularity. RESULTS Fifty-six samples were collected from 55 nodules in 53 patients. Bethesda category correlated with cellularity (P = .01), and storage time (median, 43 days; range, 7-77 days) was longer for specimens in categories II and III than for those in categories IV and VI (P = .01). The mean specimen DNA concentration was 4.5 ng/µL (range, 0-23.8 ng/µL), and 25 (45%) had concentrations >3.3 ng/µL. The mean specimen RNA concentration was 4.8 ng/µL (range, 0-42.4 ng/µL), and 31 (55%) had concentrations >1.4 ng/µL. Nucleic acid quantity increased with epithelial cellularity. Storage time weakly correlated with the quantity of extracted DNA, independent of cellularity, but not extracted RNA. Greater proportions of cell-free DNA and lesser proportions of long, intact RNA fragments were extracted from a subset of samples with longer storage time. Among 15 single nucleotide variants, the median mutant allelic fraction was 15.1%. One false-negative result was identified. Five specimens subsequently determined to harbor a genetic alteration failed quality metrics. CONCLUSIONS Cellularity and storage time affect the quantity and quality of nucleic acid extracted from thyroid FNA specimens collected in CytoLyt. Further investigation will serve to quantify the magnitude of such effects and to elucidate other contributing factors.
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Affiliation(s)
- Jonas J Heymann
- Division of Cytopathology, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Lorene M Yoxtheimer
- Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, New Orleans, Louisiana
| | - Hyeon Jin Park
- Clinical Genomics Laboratory, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York.,Caryl and Israel Englander Institute for Precision Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Evan M Fernandez
- Caryl and Israel Englander Institute for Precision Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Kirk E Facey
- Division of Cytopathology, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Susan A Alperstein
- Division of Cytopathology, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Hung V Tran
- Clinical Genomics Laboratory, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York.,Caryl and Israel Englander Institute for Precision Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Inji Baek
- Clinical Genomics Laboratory, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York.,Caryl and Israel Englander Institute for Precision Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Theresa Scognamiglio
- Division of Head and Neck Pathology, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Hanna Rennert
- Division of Molecular and Genomic Pathology, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Momin T Siddiqui
- Division of Cytopathology, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
| | - Wei Song
- Clinical Genomics Laboratory, Department of Pathology and Laboratory Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York.,Caryl and Israel Englander Institute for Precision Medicine, New York-Presbyterian Hospital-Weill Cornell Medical College, New York, New York
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Tran HV, Erskine NA, Kiefe CI, Barton BA, Lapane KL, Do VTH, Goldberg RJ. Is low iodine a risk factor for cardiovascular disease in Americans without thyroid dysfunction? Findings from NHANES. Nutr Metab Cardiovasc Dis 2017; 27:651-656. [PMID: 28689680 DOI: 10.1016/j.numecd.2017.06.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/25/2017] [Accepted: 06/07/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIMS Low body iodine levels are associated with cardiovascular disease, in part through alterations in thyroid function. While this association suggested from animal studies, it lacks supportive evidence in humans. This study examined the association between urine iodine levels and presence of coronary artery disease (CAD) and stroke in adults without thyroid dysfunction. METHODS AND RESULTS This cross-sectional study included 2440 adults (representing a weighted n = 91,713,183) aged ≥40 years without thyroid dysfunction in the nationally-representative 2007-2012 National Health and Nutrition Examination Survey. The age and sex-adjusted urine iodine/creatinine ratio (aICR) was categorized into low (aICR<116 μg/day), medium (116 μg/day ≤ aICR < 370μg/day), and high (aICR ≥ 370μg/day) based on lowest/highest quintiles. Stroke and CAD were from self-reported physician diagnoses. We examined the association between low urine aICR and CAD or stroke using multivariable logistic regression modeling. The mean age of this population was 56.0 years, 47% were women, and three quarters were non-Hispanic whites. Compared with high urine iodine levels, multivariable adjusted odds ratios aOR (95% confidence intervals) for CAD were statistically significant for low, aOR = 1.97 (1.08-3.59), but not medium, aOR = 1.26 (0.75-2.13) urine iodine levels. There was no association between stroke and low, aOR = 1.12 (0.52-2.44) or medium, aOR = 1.48 (0.88-2.48) urine iodine levels. CONCLUSION The association between low urine iodine levels and CAD should be confirmed in a prospective study with serial measures of urine iodine. If low iodine levels precede CAD, then this potential and modifiable new CAD risk factor might have therapeutic implications.
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Affiliation(s)
- H V Tran
- Clinical and Population Health Research Program, Graduate School of Biomedical Sciences, University of Massachusetts Medical School, USA; Department of Quantitative Health Sciences, University of Massachusetts Medical School, USA.
| | - N A Erskine
- Clinical and Population Health Research Program, Graduate School of Biomedical Sciences, University of Massachusetts Medical School, USA; Department of Quantitative Health Sciences, University of Massachusetts Medical School, USA
| | - C I Kiefe
- Department of Quantitative Health Sciences, University of Massachusetts Medical School, USA
| | - B A Barton
- Department of Quantitative Health Sciences, University of Massachusetts Medical School, USA
| | - K L Lapane
- Department of Quantitative Health Sciences, University of Massachusetts Medical School, USA
| | - V T H Do
- Internal Medicine, Department of Medicine, Bridgeport Hospital - Yale Medicine, USA
| | - R J Goldberg
- Department of Quantitative Health Sciences, University of Massachusetts Medical School, USA
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Tran HV, Moret E, Vaclavik V, Marcelli F, Abitbol MM, Munier FL, Schorderet DF. Swiss Family with Dominant Stargardt Disease Caused by a Recurrent Mutation in the ELOVL4 Gene. Klin Monbl Augenheilkd 2016; 233:475-7. [PMID: 27116512 DOI: 10.1055/s-0042-102585] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- H V Tran
- Jules-Gonin Eye Hospital, Department of Ophthalmology, University of Lausanne, Lausanne, Switzerland
| | - E Moret
- IRO-Institute for Research in Ophthalmology, Sion, Switzerland
| | - V Vaclavik
- Jules-Gonin Eye Hospital, Department of Ophthalmology, University of Lausanne, Lausanne, Switzerland
| | - F Marcelli
- IRO-Institute for Research in Ophthalmology, Sion, Switzerland
| | - M M Abitbol
- Department of Ophthalmology of Necker-Enfants-Malades, University Hospital, Paris Descartes University, Paris, France
| | - F L Munier
- Jules-Gonin Eye Hospital, Department of Ophthalmology, University of Lausanne, Lausanne, Switzerland
| | - D F Schorderet
- Jules-Gonin Eye Hospital, Department of Ophthalmology, University of Lausanne, Lausanne, Switzerland
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Tran HV, Piro B, Reisberg S, Huy Nguyen L, Dung Nguyen T, Duc HT, Pham MC. An electrochemical ELISA-like immunosensor for miRNAs detection based on screen-printed gold electrodes modified with reduced graphene oxide and carbon nanotubes. Biosens Bioelectron 2014; 62:25-30. [PMID: 24973539 DOI: 10.1016/j.bios.2014.06.014] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 06/06/2014] [Accepted: 06/10/2014] [Indexed: 11/17/2022]
Abstract
We design an electrochemical immunosensor for miRNA detection, based on screen-printed gold electrodes modified with reduced graphene oxide and carbon nanotubes. An original immunological approach is followed, using antibodies directed to DNA.RNA hybrids. An electrochemical ELISA-like amplification strategy was set up using a secondary antibody conjugated to horseradish peroxidase (HRP). Hydroquinone is oxidized into benzoquinone by the HRP/H2O2 catalytic system. In turn, benzoquinone is electroreduced into hydroquinone at the electrode. The catalytic reduction current is related to HRP amount immobilized on the surface, which itself is related to miRNA.DNA surface density on the electrode. This architecture, compared to classical optical detection, lowers the detection limit down to 10 fM. Two miRNAs were studied: miR-141 (a prostate biomarker) and miR-29b-1 (a lung cancer biomarker).
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Affiliation(s)
- H V Tran
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France; USTH, University of Science and Technology of Hanoi, 18 Hoang Quoc Viet, Hanoi, Vietnam; School of Chemical Engineering, Hanoi University of Science and Technology, 1st Dai Co Viet Road, Hanoi, Vietnam
| | - B Piro
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - S Reisberg
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - L Huy Nguyen
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - T Dung Nguyen
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France
| | - H T Duc
- Université Paris 11, INSERM U-1014, Hôpital Paul Brousse 94800 Villejuif, France
| | - M C Pham
- Université Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France.
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Tran HV, Piro B, Reisberg S, Anquetin G, Duc HT, Pham MC. An innovative strategy for direct electrochemical detection of microRNA biomarkers. Anal Bioanal Chem 2013; 406:1241-4. [PMID: 23963573 DOI: 10.1007/s00216-013-7292-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 07/24/2013] [Accepted: 08/05/2013] [Indexed: 01/10/2023]
Abstract
We report an electrochemical method for direct, reagentless, and label-free detection of microRNA, based on a conjugated copolymer, poly(5-hydroxy-1,4-naphthoquinone-co-5-hydroxy-2-carboxyethyl-1,4-naphthoquinone), acting as hybridization transducer. Hybridization between the oligonucleotide capture probe and a microRNA target of 22 base pairs generates an increase in the redox current ("signal-on"), which is evidenced by square wave voltammetry. Selectivity is good, with little hybridization for non-complementary targets, and the limit of detection reaches 650 fM. It is also evidenced that this sensitivity benefits from the high affinity of DNA for RNA.
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Affiliation(s)
- H V Tran
- Univ. Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205, Paris Cedex 13, France
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Tan MH, Vanakker OM, Tran HV, Robson AG, Lai-Cheong JE, Groves R, Holder GE, Moore AT. Angioid streaks with severe macular dysfunction and generalised retinal involvement due to a homozygous duplication in the ABCC6 gene. Eye (Lond) 2012; 26:753-5. [PMID: 22261738 DOI: 10.1038/eye.2011.344] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Andrei SM, Tran HV, Beknazar E, Saiji E, Guex-Crosier Y. Therapeutic strategies for nonendemic onchocerciasis. Klin Monbl Augenheilkd 2011; 228:372-3. [PMID: 21484656 DOI: 10.1055/s-0031-1273267] [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: 10/18/2022]
Affiliation(s)
- S M Andrei
- Jules Gonin Eye Hospital, Lausanne, Switzerland
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Tran HV. Simple Method for Vancomycin Dosage Adjustment Based on Serum Creatinine Variation. Hosp Pharm 2010. [DOI: 10.1310/hpj4509-674] [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: 11/11/2022]
Affiliation(s)
- Hung V. Tran
- Pharmacy Department Metroplex Hospital Killeen, Texas
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Tran HV, Charleux F, Rachik M, Ehrlacher A, Ho Ba Tho MC. In vivocharacterization of the mechanical properties of human skin derived from MRI and indentation techniques. Comput Methods Biomech Biomed Engin 2007; 10:401-7. [PMID: 17891674 DOI: 10.1080/10255840701550287] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [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: 10/22/2022]
Abstract
The human skin is an exceedingly complex and multi-layered material. This paper aims to introduce the application of the finite element analysis (FEA) to the in vivo characterization of the non-linear mechanical behaviour of three human skin layers. Indentation tests combined with magnetic resonance imaging (MRI) technique have been performed on the left dorsal forearm of a young man in order to reveal the mechanical behaviour of all skin layers. Using MRI images processing and a pre and post processor allows to make numerically individualized 2D model which consists of three skin layers and the muscles. FEA has been applied to simulate indentation tests. Neo-Hookean slightly compressible material model of two material constants (C(10), K) has been used to model the mechanical behaviour of the three skin layers and the muscles. The identification of material model parameters was done by applying Levenberg-Marquardt algorithm (LMA). Our methodology of identification provides a range of values for each constant. Range of values of different material properties of epidermis, dermis, hypodermis are respectively, C10(E)=0.12+/-0.06 MPa, C10(D)=1.11+/-0.09 MPa, C10(H)=0.42+/-0.05 KPa, K(E)=5.45+/-1.7 MPa, K(D)=29.6+/-1,28 MPa, K(H)=36.0+/-0.9 KPa.
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Affiliation(s)
- H V Tran
- Laboratoire de Biomécanique et Biomédical, CNRS, UTC, UMR, 6600, Compiègne, France
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Klainguti G, Tran HV, Nguyen C, Bremart-Strickler J. [Surgical correction of subjective excyclotorsion by tucking the anterior part of the superior oblique muscle tendon]. Klin Monbl Augenheilkd 2006; 223:386-9. [PMID: 16705511 DOI: 10.1055/s-2006-926831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 10/24/2022]
Abstract
BACKGROUND Asymmetrical folding of the anterior portion of the superior oblique muscle is a simplified variant of the Harada-Ito procedure that is supposed to selectively correct ocular torsion. PATIENTS AND METHODS This surgical technique was applied to 22 patients suffering from bilateral acquired IV nerve palsy. Ocular torsion was evaluated with the Harms tangent screen. Pre- and post-operative torsional values were compared. Post-operative follow-up was 12 months. RESULTS Pre-operatively, mean excyclotropia was 8.8 degrees in primary position and 15.9 degrees in downgaze. Post-operatively, these values decreased to 1.5 degrees and 4.1 degrees, respectively. An enlarged field of binocular single vision, extending beyond 10 degrees inferiorly, was obtained in 17/22 patients. CONCLUSIONS The selective technique of superior oblique muscle anterior tendon tucking allows one to efficiently correct the ocular torsion induced by acquired bilateral IV nerve palsy.
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Affiliation(s)
- G Klainguti
- Hôpital Ophtalmique Jules Gonin, Lausanne, Suisse.
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Tran HV, Borruat FX, Reymond-Gruber S, Schorderet D, Munier F. Evanescent White Linear Flecks and Posterior Microphthalmos: New Features of a Recently Established Disease. Klin Monbl Augenheilkd 2006; 223:397-9. [PMID: 16705514 DOI: 10.1055/s-2006-926563] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND Posterior microphthalmos is a rare autosomal recessive condition with normal anterior segment and small posterior segment resulting in axial hyperopia and retinal folding. HISTORY AND SIGNS The proband from a consanguineous Turkish family was clinically investigated at 5 months of age and followed for the next 8 years. At five months of age, refraction revealed a severe hyperopia of + 10 diopters in both eyes (OU) with a mean axial length of 16.5 mm. Fundus examination showed a dystrophic maculo-papillar bundle. Multiple whitish deep intraretinal linear lesions sparing the macula were present in the mid-periphery with no preferential orientation. THERAPY AND OUTCOME By 8 years of age, visual acuity was 20/25 in the right eye (OD) and 20/30 in the left eye (OS) with S + 14 OU. The whitish linear lesions had disappeared and were replaced by retinal pigment epithelium alterations. Optical coherence tomography (OCT) revealed a thickened retina with normal appearance at the site of the linear lesions. CONCLUSIONS This is the first report of long-term follow-up and OCT findings in this rare ocular developmental abnormality.
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Affiliation(s)
- H V Tran
- Oculogenetic Unit, Jules Gonin Eye Hospital, Lausanne, Switzerland
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Drouet KE, Tran HV, Theodorakis EA. Efficient Synthesis of the C1-C8 Fragment of Reveromycins. SYNTHETIC COMMUN 2000. [DOI: 10.1080/00397910008087279] [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: 10/22/2022]
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Abstract
[structure: see text] Reveromycin A (1) belongs to a family of microbial polyketides with unusual structural features and biological activities. The structure of 1 is composed of a [6,6] spiroketal core decorated with highly unsaturated side chains. As a prelude to the synthesis of 1, we present herein a short, efficient, and enantioselective synthesis of the C9-C21 fragment 5 (spiroketal core) of reveromycin A.
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Affiliation(s)
- K E Drouet
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla 92093-0358, USA
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