Dorothy Wiley | University of California, Los Angeles (original) (raw)

Papers by Dorothy Wiley

Research paper thumbnail of An effective human papillomavirus vaccination policy will reduce infection- and malignancy-related morbidity and mortality

Nursing Outlook, 2018

Twelve human papillomaviruses (HPVs) are classified as strong human carcinogens, commonly referre... more Twelve human papillomaviruses (HPVs) are classified as strong human carcinogens, commonly referred to as high-risk HPVs (hrHPVs), and are responsible for nearly all cervical malignancies and 40% to 50% of all vaginal and vulvar cancers in women (Bouvard et al.

Research paper thumbnail of Screening for Anal Cancer in Women

Journal of Lower Genital Tract Disease, 2015

The incidence of anal cancer is higher in women than men in the general population and has been i... more The incidence of anal cancer is higher in women than men in the general population and has been increasing for several decades. Similar to cervical cancer, most anal cancers are associated with human papillomavirus (HPV), and it is believed that anal cancers are preceded by anal high-grade squamous intraepithelial lesions (HSIL). Our goals were to summarize the literature on anal cancer, HSIL, and HPV infection in women and to provide screening recommendations in women. Methods: A group of experts convened by the American Society for Colposcopy and Cervical Pathology and the International Anal Neoplasia Society reviewed the literature on anal HPV infection, anal SIL, and anal cancer in women. Results: Anal HPV infection is common in women but is relatively transient in most. The risk of anal HSIL and cancer varies considerably by risk group, with human immunodeficiency virus-infected women and those with a history of lower genital tract neoplasia at highest risk compared with the general population. Conclusions: While there are no data yet to demonstrate that identification and treatment of anal HSIL leads to reduced risk of anal cancer, women in groups at the highest risk should be queried for anal cancer symptoms and required to have digital anorectal examinations to detect anal cancers. Human immunodeficiency virus-infected women and women with lower genital tract neoplasia may be considered for screening with anal cytology with triage to treatment if HSIL is diagnosed. Healthy women with no known risk factors or anal cancer symptoms do not need to be routinely screened for anal cancer or anal HSIL.

Research paper thumbnail of Comparison of anal pre-cancer screening strategies among men who have sex with men

International Journal of STD & AIDS

Purpose Comparison of anal pre-cancer screening strategies in men who have sex with men (MSM). Me... more Purpose Comparison of anal pre-cancer screening strategies in men who have sex with men (MSM). Methods MSM in the Multicenter AIDS Cohort Study underwent repeated anal cytology (aCyt), oncogenic human papillomavirus (oncHPV) testing. A subset received High-Resolution Anoscopy (HRA). We evaluated three screening strategies for their ability to predict anal histological High-Grade Squamous Intraepithelial lesion (HSIL): single aCyt, sequential aCyt, and oncHPV co-testing. Multivariable logistic regression models evaluated risk of HSIL among participants undergoing HRA within 5 years of screening. Sensitivity and specificity were estimated among participants with HRA, and results corrected for verification bias using weighted generalized estimating equations. Results There were 1426 MSM with aCyt screening (48% people with HIV [PWH]) and 428 that underwent HRA. Median age was 57 years, 14% of PWH had CD4< 350 cells/mm3. HSIL probability was higher in MSM with one (39%, p < 0.01) ...

Research paper thumbnail of Univariate and Four Iterations of Multivariate Evaluation of Risk Factors for Anal HPV16/18 DNA Positivity for 340 Men Who Have Sex with Men.<sup>a</sup>

<p><sup>a</sup> Statistically significant associations appear in bold type-face... more <p><sup>a</sup> Statistically significant associations appear in bold type-face, <i>p</i><0.05</p><p><sup>b</sup> Additionally controlled for Hepatitis C virus (HCV), smoking and alcohol use prior to baseline and testosterone testing visit, cumulative pack years prior to baseline, testosterone visit, and HPV testing visit, study site, and time cohort, QIC = 508.5534.</p><p><sup>c</sup> Additionally controlled for Hepatitis C virus (HCV), alcohol use prior to HPV testing visit, study site, and time cohort, QIC = 501.2063.</p><p><sup>d</sup> Additionally controlled for study site, and time cohort, QIC = 506.7745.</p><p><sup>e</sup> QIC = 491.2723</p><p>Univariate and Four Iterations of Multivariate Evaluation of Risk Factors for Anal HPV16/18 DNA Positivity for 340 Men Who Have Sex with Men.<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0119447#t003fn001&quot; target="_blank"><sup>a</sup></a></p

Research paper thumbnail of Low CD4/CD8 ratio predicts cancer risk among adults with HIV

BackgroundIndependent of CD4 cell count, low CD4/CD8 ratio in people with HIV (PWH) is associated... more BackgroundIndependent of CD4 cell count, low CD4/CD8 ratio in people with HIV (PWH) is associated with deleterious immune senescence, activation, and inflammation, which may contribute to carcinogenesis and excess cancer risk. We examined whether low CD4/CD8 ratios predicted cancer among PWH in the USA and Canada.MethodsWe examined all cancer-free PWH with one or more CD4/CD8 values from NA-ACCORD observational cohorts with validated cancer diagnoses between 1998-2016. We evaluated the association between time-lagged CD4/CD8 ratio and risk of specific cancers in multivariable, time-updated Cox proportional hazard models using restricted cubic spines.Models were adjusted for age, sex, race/ethnicity, hepatitis C virus, and time-updated CD4 cell count, HIV RNA, and history of AIDS-defining illness.ResultsAmong 83,893 PWH, there were 5,628 incident cancers, including lung cancer (n=755), Kaposi sarcoma (KS, n=501), non-Hodgkin lymphoma (NHL, n=497), and anal cancer (n=439). Median age ...

Research paper thumbnail of Methylation of Human Papillomavirus Genomes in Cells of Anal Epithelia of HIV-Infected Men

JAIDS Journal of Acquired Immune Deficiency Syndromes, 2005

Intra-anal malignancies disproportionately affect individuals who engage in anal intercourse beca... more Intra-anal malignancies disproportionately affect individuals who engage in anal intercourse because of infection with human papillomaviruses (HPVs), with an increased risk attributed to infection with HIV because of a declining immunity against HPVs. Long-term persistence of HPVs suggests yet other mechanisms that determine the clinical outcome, however. Because methylation of HPV DNA represses oncogene expression in cervical samples, we investigated whether this mechanism also occurs in HIV-positive men and studied the methylation of CpG dinucleotides overlapping with the HPV-16 enhancer and promoter in 16 anal samples. Similar to cervical infections, the average methylation frequency was 12.3%, with heterogeneities between clones from different and the same samples. In low-grade anal intraepithelial neoplasia (AIN), methylation was high in CpGs overlapping the viral enhancer but rare in promoter positions, whereas methylation was high in promoter regions in high-grade AIN, especi...

Research paper thumbnail of Soccer-related injuries utilization of U.S. emergency departments for concussions, intracranial injuries, and other-injuries in a national representative probability sample: Nationwide Emergency Department Sample, 2010 to 2013

PLOS ONE, 2021

Soccer participation in the United States (U.S.) has increased over time, and injuries as well as... more Soccer participation in the United States (U.S.) has increased over time, and injuries as well as interest to prevent injuries has become more common. This study described Emergency Department (ED) visits related to concussions, intracranial injuries (ICI), and all-other injuries attributed to soccer play; described healthcare cost and length of hospital stay of soccer-related injuries; and determined independent predictors of concussions, ICI, and all-other soccer injuries leading to ED visits. The study examined soccer-related weighted discharge data from the Nationwide Emergency Department Sample, Healthcare Cost and Utilization Project, Agency for Healthcare Research and Quality. Weighted tabular analysis of univariate and bivariate analyses and weighted and adjusted logistic regression models were conducted. A total of 480,580 of U.S. ED visits related to soccer injuries were available for analysis between 2010 to 2013. Generally, 98% of soccer-related ED visits resulted in rou...

Research paper thumbnail of Short Communication: Plasma Lymphocyte Activation Gene 3 and Subclinical Coronary Artery Disease in the Multicenter AIDS Cohort Study

AIDS Research and Human Retroviruses, 2021

Chronic inflammation, including among people with HIV (PWH), elevates immune cell expression of l... more Chronic inflammation, including among people with HIV (PWH), elevates immune cell expression of lymphocyte activation gene 3 (LAG3); however, low plasma LAG3 predicts cardiovascular disease (CVD) events in the general population. The associations among LAG3 plasma levels, subclinical atherosclerosis, inflammation, and HIV infection have not been well described. We measured plasma LAG3 in 704 men with and without HIV from the multicenter AIDS cohort study, who underwent coronary computed tomography angiography. HIV serostatus was not independently associated with LAG3 after adjustment for sociodemographic and CVD risk factors. Current smoking status and African American race were associated with lower LAG3, and age and sTNFaRI concentration were associated with greater LAG3. LAG3 was not associated with coronary artery stenosis. Thus, no difference was found in plasma LAG3 concentration by HIV serostatus, and no association between LAG3 and subclinical coronary atherosclerosis in men with and without HIV was observed.

Research paper thumbnail of Systemic Inflammation Characterizes Lack of Metabolic Health in Nonobese HIV-Infected Men

Mediators of Inflammation, 2018

Background. Increasing body mass index (BMI) is generally associated with loss of metabolic healt... more Background. Increasing body mass index (BMI) is generally associated with loss of metabolic health, although some obese individuals remain metabolically healthy. Among nonobese men, HIV infection has been associated with a lower prevalence of metabolic health. Methods. We conducted a cross-sectional analysis of 470 HIV-infected and 368 HIV-uninfected men enrolled in the Multicenter AIDS Cohort Study Cardiovascular substudy. Circulating biomarker levels were compared by BMI category and by HIV serostatus. Poisson regression with robust variance determined associations between metabolic health and circulating inflammatory biomarker levels after adjusting for factors previously associated with metabolic health. Results. HIV-infected men were younger and less likely to be obese. Among HIV-infected, normal weight metabolically healthy men (compared to unhealthy) had significantly lower circulating levels of interleukin- (IL-) 6, soluble tumor necrosis factor receptors (sTNFR) I and II, a...

Research paper thumbnail of Comparison of nylon‐flocked swab and Dacron swab cytology for anal HSIL detection in transgender women and gay, bisexual, and other men who have sex with men

Cancer Cytopathology, 2019

Comparison of nylon-flocked swab and Dacron swab cytology for anal HSIL detection in transgender ... more Comparison of nylon-flocked swab and Dacron swab cytology for anal HSIL detection in transgender women and gay, bisexual, and other men who have sex with men.

Research paper thumbnail of Cytosine methylation in the HPV16 3’ L1/ 5’LCR region characterized from anal epithelia of HPV-HIV coinfected men

Infectious Agents and Cancer, 2010

Research paper thumbnail of Patterns of repeated anal cytology results among HIV-positive and HIV-negative men who have sex with men

Papillomavirus research (Amsterdam, Netherlands), Jun 1, 2018

Men who have sex with men (MSM) are at increased risk for anal cancer. In cervical cancer screeni... more Men who have sex with men (MSM) are at increased risk for anal cancer. In cervical cancer screening, patterns of repeated cytology results are used to identify low- and high-risk women, but little is known about these patterns for anal cytology among MSM. We analyzed Multicenter AIDS Cohort Study (MACS) data for MSM who were offered anal cytology testing annually (HIV-positive) or every 2 years (HIV-negative) for 4 years. Following an initial negative (normal) cytology, the frequency of a second negative cytology was lower among HIV-positive MSM with CD4 ≥ 500 (74%) or CD4 < 500 (68%) than HIV-negative MSM (83%) (p < 0.001). After an initial abnormal cytology, the frequency of a second abnormal cytology was highest among HIV-positive MSM with CD4 < 500 (70%) compared to CD4 ≥ 500 (53%) or HIV-negative MSM (46%) (p = 0.003). Among HIV-positive MSM with at least three results, 37% had 3 consecutive negative results; 3 consecutive abnormal results were more frequent among CD4 ...

Research paper thumbnail of Metabolic health across the BMI spectrum in HIV-infected and HIV-uninfected men

AIDS, 2017

Objectives-In the general population, metabolic health (MH) often declines as body mass index (BM... more Objectives-In the general population, metabolic health (MH) often declines as body mass index (BMI) increases. However, some obese individuals maintain MH. HIV and antiretroviral therapy (ART) have been associated with metabolic disturbances. We hypothesized that HIVinfected (HIV+) men on suppressive ART experience less MH than HIV-uninfected (HIV−) men across all BMI categories. Design/Methods-In a cross-sectional analysis of 1018 HIV+ and 1092 HIV− men enrolled in the Multicenter AIDS Cohort Study, Poisson regression with robust variance determined associations between HIV serostatus and MH prevalence (defined as meeting ≤2 of 5 NCEP/ATP III metabolic syndrome criteria), adjusting for age, race, BMI category, smoking and hepatitis C virus infection status.

Research paper thumbnail of The association of medication use with clearance or persistence of oral HPV infection

Cancer Causes & Control, 2016

Purpose-Persistent oral human papillomavirus (HPV) infection increases risk for oropharyngeal car... more Purpose-Persistent oral human papillomavirus (HPV) infection increases risk for oropharyngeal carcinoma, and people living with HIV have higher rates of oral HPV infection and related cancers. Some prescription medications have immunomodulatory effects, but the impact of medication use on oral HPV natural history is unknown. Methods-Scope ® oral rinse-and-gargle samples were collected semi-annually from 1,666 participants and tested for 37 types of oral HPV DNA using PCR; 594 HPV-infected participants

Research paper thumbnail of Prevalence of Cervical Dysplasias Among Older, Homeless Women

Research paper thumbnail of Human Papillomavirus (HPV) 16 E6 seropositivity is elevated in subjects with oral HPV16 infection

Cancer Epidemiology, 2016

Introduction-Human Papillomavirus (HPV) 16 E6 serum antibodies are common in people with HPV-rela... more Introduction-Human Papillomavirus (HPV) 16 E6 serum antibodies are common in people with HPV-related oropharyngeal cancers (HPV-OPC), but not the general population. We explored HPV16 seroprevalence in people with and without oral HPV16 infection, the cause of HPV-OPC. Methods-Oral rinse samples were collected semiannually and tested for 36 types of HPV DNA by PCR. HPV16 E6 serum antibodies were tested at the visit of first oral HPV detection in participants with prevalent (n=54), or incident (n=39) oral HPV16 DNA; or at baseline in matched

Research paper thumbnail of Association of serum cytokines with oral HPV clearance

Cytokine, 2016

Background-Initial studies suggest higher serum levels of some pro-inflammatory cytokines may be ... more Background-Initial studies suggest higher serum levels of some pro-inflammatory cytokines may be associated with decreased cervical human papillomavirus (HPV) clearance. However, the relationship of cytokines with oral HPV clearance has not been explored. Methods-From 2010 to 2014, oral rinse and serum samples were collected semi-annually from 1,601 adults. Oral rinse samples were tested for HPV DNA using PCR. Based on oral HPV results,

Research paper thumbnail of Physical Activity and Its Association with Insulin Resistance in Multicenter AIDS Cohort Study Men

AIDS Research and Human Retroviruses, 2015

The association between physical activity (PA), degree of insulin resistance (IR), and HIV infect... more The association between physical activity (PA), degree of insulin resistance (IR), and HIV infection is unclear. We hypothesized that PA might differentially affect the degree of IR through the direct and indirect influences of HIV, antiretroviral medications, and sociodemographic characteristics. The International Physical Activity Questionnaire (IPAQ) was administered to Multicenter AIDS Cohort Study (MACS) participants from 4/2010 to 3/2011 to generate metabolic equivalents (METs) total score and PA category. We determined the concurrent homeostatic model assessment IR (mmol/liter) (HOMA-IR) value from fasting glucose and insulin. We examined the HIV-PA relationship using quantile regression and the HIV-PA-HOMA-IR value relationship using linear regression. Among the 1,281 men, the proportions of men in the low (25% in HIV + vs. 23% in HIV-), moderate (26% vs. 27%), and high (49% vs. 49%) PA categories were similar by HIV status. The HOMA-IR value was higher among the HIV + men (p < 0.001), and both HIV infection and low PA were associated with a higher degree of IR (p < 0.0001 and p = 0.0007). However, the PA-HOMA-IR value interaction was not different by HIV status. The HOMA-IR value was higher among HIV + men although the PA was similar. It is unknown if more exercise will overcome the metabolic derangements associated with HIV and its treatment.

Research paper thumbnail of High oral HPV16 viral load predicts long-term persistence in HIV-infected and at risk HIV-uninfected individuals

The Journal of infectious diseases, Jan 7, 2015

The association between oral HPV16 DNA viral load and infection clearance was evaluated among 88 ... more The association between oral HPV16 DNA viral load and infection clearance was evaluated among 88 individuals with oral HPV16 infection identified within a prospective cohort of 1,470 HIV-infected and uninfected individuals. Oral rinses were collected semi-annually for up to five years. Oral HPV16 viral load at the first positive test was significantly associated with time to clearance of infection (continuous p-trends<0.01). Notably, clearance rates by 24-month were 41% and 94% in the highest and lowest HPV16 viral load tertiles (p=0.03), respectively. High oral HPV16 viral load warrants consideration as a biomarker for infection persistence, the presumed precursor of HPV16-associated oropharyngeal cancer.

Research paper thumbnail of Sexual Intercourse and the Age Difference between Adolescent Females and Their Romantic Partners

Perspectives on Sexual and Reproductive Health, 2002

The age difference between a female and her partner may influence relationship dynamics in ways t... more The age difference between a female and her partner may influence relationship dynamics in ways that put the female at increased risk of unintended pregnancies and sexually transmitted diseases. Very little is known, however, about how romantic involvement progresses to intercourse, particularly among adolescent females with older male partners. METHODS: Data from 1,975 female participants in the National Longitudinal Study of Adolescent Health were analyzed using logistic regression to determine whether the age difference between an adolescent female and her romantic partner is a risk factor for sexual intercourse. RESULTS: Adolescent females involved with an older partner have higher odds of having intercourse with that partner than females with partners their own age, after adjustment for demographic covariates. The magnitude of this association is most dramatic among the youngest females-for example, the odds of intercourse among 13-year-old females with a partner six years older are more than six times the odds among 13-year-old females with a same-age partner (odds ratio, 6.4), while 17-year-old females with partners six years older have about twice the odds of intercourse when compared with those who have a same-age partner (2.1). CONCLUSIONS: Young adolescent females with substantially older partners are much more likely than their peers to have sex with their partner, which exposes them to the risks of pregnancy and sexually transmitted diseases.

Research paper thumbnail of An effective human papillomavirus vaccination policy will reduce infection- and malignancy-related morbidity and mortality

Nursing Outlook, 2018

Twelve human papillomaviruses (HPVs) are classified as strong human carcinogens, commonly referre... more Twelve human papillomaviruses (HPVs) are classified as strong human carcinogens, commonly referred to as high-risk HPVs (hrHPVs), and are responsible for nearly all cervical malignancies and 40% to 50% of all vaginal and vulvar cancers in women (Bouvard et al.

Research paper thumbnail of Screening for Anal Cancer in Women

Journal of Lower Genital Tract Disease, 2015

The incidence of anal cancer is higher in women than men in the general population and has been i... more The incidence of anal cancer is higher in women than men in the general population and has been increasing for several decades. Similar to cervical cancer, most anal cancers are associated with human papillomavirus (HPV), and it is believed that anal cancers are preceded by anal high-grade squamous intraepithelial lesions (HSIL). Our goals were to summarize the literature on anal cancer, HSIL, and HPV infection in women and to provide screening recommendations in women. Methods: A group of experts convened by the American Society for Colposcopy and Cervical Pathology and the International Anal Neoplasia Society reviewed the literature on anal HPV infection, anal SIL, and anal cancer in women. Results: Anal HPV infection is common in women but is relatively transient in most. The risk of anal HSIL and cancer varies considerably by risk group, with human immunodeficiency virus-infected women and those with a history of lower genital tract neoplasia at highest risk compared with the general population. Conclusions: While there are no data yet to demonstrate that identification and treatment of anal HSIL leads to reduced risk of anal cancer, women in groups at the highest risk should be queried for anal cancer symptoms and required to have digital anorectal examinations to detect anal cancers. Human immunodeficiency virus-infected women and women with lower genital tract neoplasia may be considered for screening with anal cytology with triage to treatment if HSIL is diagnosed. Healthy women with no known risk factors or anal cancer symptoms do not need to be routinely screened for anal cancer or anal HSIL.

Research paper thumbnail of Comparison of anal pre-cancer screening strategies among men who have sex with men

International Journal of STD & AIDS

Purpose Comparison of anal pre-cancer screening strategies in men who have sex with men (MSM). Me... more Purpose Comparison of anal pre-cancer screening strategies in men who have sex with men (MSM). Methods MSM in the Multicenter AIDS Cohort Study underwent repeated anal cytology (aCyt), oncogenic human papillomavirus (oncHPV) testing. A subset received High-Resolution Anoscopy (HRA). We evaluated three screening strategies for their ability to predict anal histological High-Grade Squamous Intraepithelial lesion (HSIL): single aCyt, sequential aCyt, and oncHPV co-testing. Multivariable logistic regression models evaluated risk of HSIL among participants undergoing HRA within 5 years of screening. Sensitivity and specificity were estimated among participants with HRA, and results corrected for verification bias using weighted generalized estimating equations. Results There were 1426 MSM with aCyt screening (48% people with HIV [PWH]) and 428 that underwent HRA. Median age was 57 years, 14% of PWH had CD4< 350 cells/mm3. HSIL probability was higher in MSM with one (39%, p < 0.01) ...

Research paper thumbnail of Univariate and Four Iterations of Multivariate Evaluation of Risk Factors for Anal HPV16/18 DNA Positivity for 340 Men Who Have Sex with Men.<sup>a</sup>

<p><sup>a</sup> Statistically significant associations appear in bold type-face... more <p><sup>a</sup> Statistically significant associations appear in bold type-face, <i>p</i><0.05</p><p><sup>b</sup> Additionally controlled for Hepatitis C virus (HCV), smoking and alcohol use prior to baseline and testosterone testing visit, cumulative pack years prior to baseline, testosterone visit, and HPV testing visit, study site, and time cohort, QIC = 508.5534.</p><p><sup>c</sup> Additionally controlled for Hepatitis C virus (HCV), alcohol use prior to HPV testing visit, study site, and time cohort, QIC = 501.2063.</p><p><sup>d</sup> Additionally controlled for study site, and time cohort, QIC = 506.7745.</p><p><sup>e</sup> QIC = 491.2723</p><p>Univariate and Four Iterations of Multivariate Evaluation of Risk Factors for Anal HPV16/18 DNA Positivity for 340 Men Who Have Sex with Men.<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0119447#t003fn001&quot; target="_blank"><sup>a</sup></a></p

Research paper thumbnail of Low CD4/CD8 ratio predicts cancer risk among adults with HIV

BackgroundIndependent of CD4 cell count, low CD4/CD8 ratio in people with HIV (PWH) is associated... more BackgroundIndependent of CD4 cell count, low CD4/CD8 ratio in people with HIV (PWH) is associated with deleterious immune senescence, activation, and inflammation, which may contribute to carcinogenesis and excess cancer risk. We examined whether low CD4/CD8 ratios predicted cancer among PWH in the USA and Canada.MethodsWe examined all cancer-free PWH with one or more CD4/CD8 values from NA-ACCORD observational cohorts with validated cancer diagnoses between 1998-2016. We evaluated the association between time-lagged CD4/CD8 ratio and risk of specific cancers in multivariable, time-updated Cox proportional hazard models using restricted cubic spines.Models were adjusted for age, sex, race/ethnicity, hepatitis C virus, and time-updated CD4 cell count, HIV RNA, and history of AIDS-defining illness.ResultsAmong 83,893 PWH, there were 5,628 incident cancers, including lung cancer (n=755), Kaposi sarcoma (KS, n=501), non-Hodgkin lymphoma (NHL, n=497), and anal cancer (n=439). Median age ...

Research paper thumbnail of Methylation of Human Papillomavirus Genomes in Cells of Anal Epithelia of HIV-Infected Men

JAIDS Journal of Acquired Immune Deficiency Syndromes, 2005

Intra-anal malignancies disproportionately affect individuals who engage in anal intercourse beca... more Intra-anal malignancies disproportionately affect individuals who engage in anal intercourse because of infection with human papillomaviruses (HPVs), with an increased risk attributed to infection with HIV because of a declining immunity against HPVs. Long-term persistence of HPVs suggests yet other mechanisms that determine the clinical outcome, however. Because methylation of HPV DNA represses oncogene expression in cervical samples, we investigated whether this mechanism also occurs in HIV-positive men and studied the methylation of CpG dinucleotides overlapping with the HPV-16 enhancer and promoter in 16 anal samples. Similar to cervical infections, the average methylation frequency was 12.3%, with heterogeneities between clones from different and the same samples. In low-grade anal intraepithelial neoplasia (AIN), methylation was high in CpGs overlapping the viral enhancer but rare in promoter positions, whereas methylation was high in promoter regions in high-grade AIN, especi...

Research paper thumbnail of Soccer-related injuries utilization of U.S. emergency departments for concussions, intracranial injuries, and other-injuries in a national representative probability sample: Nationwide Emergency Department Sample, 2010 to 2013

PLOS ONE, 2021

Soccer participation in the United States (U.S.) has increased over time, and injuries as well as... more Soccer participation in the United States (U.S.) has increased over time, and injuries as well as interest to prevent injuries has become more common. This study described Emergency Department (ED) visits related to concussions, intracranial injuries (ICI), and all-other injuries attributed to soccer play; described healthcare cost and length of hospital stay of soccer-related injuries; and determined independent predictors of concussions, ICI, and all-other soccer injuries leading to ED visits. The study examined soccer-related weighted discharge data from the Nationwide Emergency Department Sample, Healthcare Cost and Utilization Project, Agency for Healthcare Research and Quality. Weighted tabular analysis of univariate and bivariate analyses and weighted and adjusted logistic regression models were conducted. A total of 480,580 of U.S. ED visits related to soccer injuries were available for analysis between 2010 to 2013. Generally, 98% of soccer-related ED visits resulted in rou...

Research paper thumbnail of Short Communication: Plasma Lymphocyte Activation Gene 3 and Subclinical Coronary Artery Disease in the Multicenter AIDS Cohort Study

AIDS Research and Human Retroviruses, 2021

Chronic inflammation, including among people with HIV (PWH), elevates immune cell expression of l... more Chronic inflammation, including among people with HIV (PWH), elevates immune cell expression of lymphocyte activation gene 3 (LAG3); however, low plasma LAG3 predicts cardiovascular disease (CVD) events in the general population. The associations among LAG3 plasma levels, subclinical atherosclerosis, inflammation, and HIV infection have not been well described. We measured plasma LAG3 in 704 men with and without HIV from the multicenter AIDS cohort study, who underwent coronary computed tomography angiography. HIV serostatus was not independently associated with LAG3 after adjustment for sociodemographic and CVD risk factors. Current smoking status and African American race were associated with lower LAG3, and age and sTNFaRI concentration were associated with greater LAG3. LAG3 was not associated with coronary artery stenosis. Thus, no difference was found in plasma LAG3 concentration by HIV serostatus, and no association between LAG3 and subclinical coronary atherosclerosis in men with and without HIV was observed.

Research paper thumbnail of Systemic Inflammation Characterizes Lack of Metabolic Health in Nonobese HIV-Infected Men

Mediators of Inflammation, 2018

Background. Increasing body mass index (BMI) is generally associated with loss of metabolic healt... more Background. Increasing body mass index (BMI) is generally associated with loss of metabolic health, although some obese individuals remain metabolically healthy. Among nonobese men, HIV infection has been associated with a lower prevalence of metabolic health. Methods. We conducted a cross-sectional analysis of 470 HIV-infected and 368 HIV-uninfected men enrolled in the Multicenter AIDS Cohort Study Cardiovascular substudy. Circulating biomarker levels were compared by BMI category and by HIV serostatus. Poisson regression with robust variance determined associations between metabolic health and circulating inflammatory biomarker levels after adjusting for factors previously associated with metabolic health. Results. HIV-infected men were younger and less likely to be obese. Among HIV-infected, normal weight metabolically healthy men (compared to unhealthy) had significantly lower circulating levels of interleukin- (IL-) 6, soluble tumor necrosis factor receptors (sTNFR) I and II, a...

Research paper thumbnail of Comparison of nylon‐flocked swab and Dacron swab cytology for anal HSIL detection in transgender women and gay, bisexual, and other men who have sex with men

Cancer Cytopathology, 2019

Comparison of nylon-flocked swab and Dacron swab cytology for anal HSIL detection in transgender ... more Comparison of nylon-flocked swab and Dacron swab cytology for anal HSIL detection in transgender women and gay, bisexual, and other men who have sex with men.

Research paper thumbnail of Cytosine methylation in the HPV16 3’ L1/ 5’LCR region characterized from anal epithelia of HPV-HIV coinfected men

Infectious Agents and Cancer, 2010

Research paper thumbnail of Patterns of repeated anal cytology results among HIV-positive and HIV-negative men who have sex with men

Papillomavirus research (Amsterdam, Netherlands), Jun 1, 2018

Men who have sex with men (MSM) are at increased risk for anal cancer. In cervical cancer screeni... more Men who have sex with men (MSM) are at increased risk for anal cancer. In cervical cancer screening, patterns of repeated cytology results are used to identify low- and high-risk women, but little is known about these patterns for anal cytology among MSM. We analyzed Multicenter AIDS Cohort Study (MACS) data for MSM who were offered anal cytology testing annually (HIV-positive) or every 2 years (HIV-negative) for 4 years. Following an initial negative (normal) cytology, the frequency of a second negative cytology was lower among HIV-positive MSM with CD4 ≥ 500 (74%) or CD4 < 500 (68%) than HIV-negative MSM (83%) (p < 0.001). After an initial abnormal cytology, the frequency of a second abnormal cytology was highest among HIV-positive MSM with CD4 < 500 (70%) compared to CD4 ≥ 500 (53%) or HIV-negative MSM (46%) (p = 0.003). Among HIV-positive MSM with at least three results, 37% had 3 consecutive negative results; 3 consecutive abnormal results were more frequent among CD4 ...

Research paper thumbnail of Metabolic health across the BMI spectrum in HIV-infected and HIV-uninfected men

AIDS, 2017

Objectives-In the general population, metabolic health (MH) often declines as body mass index (BM... more Objectives-In the general population, metabolic health (MH) often declines as body mass index (BMI) increases. However, some obese individuals maintain MH. HIV and antiretroviral therapy (ART) have been associated with metabolic disturbances. We hypothesized that HIVinfected (HIV+) men on suppressive ART experience less MH than HIV-uninfected (HIV−) men across all BMI categories. Design/Methods-In a cross-sectional analysis of 1018 HIV+ and 1092 HIV− men enrolled in the Multicenter AIDS Cohort Study, Poisson regression with robust variance determined associations between HIV serostatus and MH prevalence (defined as meeting ≤2 of 5 NCEP/ATP III metabolic syndrome criteria), adjusting for age, race, BMI category, smoking and hepatitis C virus infection status.

Research paper thumbnail of The association of medication use with clearance or persistence of oral HPV infection

Cancer Causes & Control, 2016

Purpose-Persistent oral human papillomavirus (HPV) infection increases risk for oropharyngeal car... more Purpose-Persistent oral human papillomavirus (HPV) infection increases risk for oropharyngeal carcinoma, and people living with HIV have higher rates of oral HPV infection and related cancers. Some prescription medications have immunomodulatory effects, but the impact of medication use on oral HPV natural history is unknown. Methods-Scope ® oral rinse-and-gargle samples were collected semi-annually from 1,666 participants and tested for 37 types of oral HPV DNA using PCR; 594 HPV-infected participants

Research paper thumbnail of Prevalence of Cervical Dysplasias Among Older, Homeless Women

Research paper thumbnail of Human Papillomavirus (HPV) 16 E6 seropositivity is elevated in subjects with oral HPV16 infection

Cancer Epidemiology, 2016

Introduction-Human Papillomavirus (HPV) 16 E6 serum antibodies are common in people with HPV-rela... more Introduction-Human Papillomavirus (HPV) 16 E6 serum antibodies are common in people with HPV-related oropharyngeal cancers (HPV-OPC), but not the general population. We explored HPV16 seroprevalence in people with and without oral HPV16 infection, the cause of HPV-OPC. Methods-Oral rinse samples were collected semiannually and tested for 36 types of HPV DNA by PCR. HPV16 E6 serum antibodies were tested at the visit of first oral HPV detection in participants with prevalent (n=54), or incident (n=39) oral HPV16 DNA; or at baseline in matched

Research paper thumbnail of Association of serum cytokines with oral HPV clearance

Cytokine, 2016

Background-Initial studies suggest higher serum levels of some pro-inflammatory cytokines may be ... more Background-Initial studies suggest higher serum levels of some pro-inflammatory cytokines may be associated with decreased cervical human papillomavirus (HPV) clearance. However, the relationship of cytokines with oral HPV clearance has not been explored. Methods-From 2010 to 2014, oral rinse and serum samples were collected semi-annually from 1,601 adults. Oral rinse samples were tested for HPV DNA using PCR. Based on oral HPV results,

Research paper thumbnail of Physical Activity and Its Association with Insulin Resistance in Multicenter AIDS Cohort Study Men

AIDS Research and Human Retroviruses, 2015

The association between physical activity (PA), degree of insulin resistance (IR), and HIV infect... more The association between physical activity (PA), degree of insulin resistance (IR), and HIV infection is unclear. We hypothesized that PA might differentially affect the degree of IR through the direct and indirect influences of HIV, antiretroviral medications, and sociodemographic characteristics. The International Physical Activity Questionnaire (IPAQ) was administered to Multicenter AIDS Cohort Study (MACS) participants from 4/2010 to 3/2011 to generate metabolic equivalents (METs) total score and PA category. We determined the concurrent homeostatic model assessment IR (mmol/liter) (HOMA-IR) value from fasting glucose and insulin. We examined the HIV-PA relationship using quantile regression and the HIV-PA-HOMA-IR value relationship using linear regression. Among the 1,281 men, the proportions of men in the low (25% in HIV + vs. 23% in HIV-), moderate (26% vs. 27%), and high (49% vs. 49%) PA categories were similar by HIV status. The HOMA-IR value was higher among the HIV + men (p < 0.001), and both HIV infection and low PA were associated with a higher degree of IR (p < 0.0001 and p = 0.0007). However, the PA-HOMA-IR value interaction was not different by HIV status. The HOMA-IR value was higher among HIV + men although the PA was similar. It is unknown if more exercise will overcome the metabolic derangements associated with HIV and its treatment.

Research paper thumbnail of High oral HPV16 viral load predicts long-term persistence in HIV-infected and at risk HIV-uninfected individuals

The Journal of infectious diseases, Jan 7, 2015

The association between oral HPV16 DNA viral load and infection clearance was evaluated among 88 ... more The association between oral HPV16 DNA viral load and infection clearance was evaluated among 88 individuals with oral HPV16 infection identified within a prospective cohort of 1,470 HIV-infected and uninfected individuals. Oral rinses were collected semi-annually for up to five years. Oral HPV16 viral load at the first positive test was significantly associated with time to clearance of infection (continuous p-trends<0.01). Notably, clearance rates by 24-month were 41% and 94% in the highest and lowest HPV16 viral load tertiles (p=0.03), respectively. High oral HPV16 viral load warrants consideration as a biomarker for infection persistence, the presumed precursor of HPV16-associated oropharyngeal cancer.

Research paper thumbnail of Sexual Intercourse and the Age Difference between Adolescent Females and Their Romantic Partners

Perspectives on Sexual and Reproductive Health, 2002

The age difference between a female and her partner may influence relationship dynamics in ways t... more The age difference between a female and her partner may influence relationship dynamics in ways that put the female at increased risk of unintended pregnancies and sexually transmitted diseases. Very little is known, however, about how romantic involvement progresses to intercourse, particularly among adolescent females with older male partners. METHODS: Data from 1,975 female participants in the National Longitudinal Study of Adolescent Health were analyzed using logistic regression to determine whether the age difference between an adolescent female and her romantic partner is a risk factor for sexual intercourse. RESULTS: Adolescent females involved with an older partner have higher odds of having intercourse with that partner than females with partners their own age, after adjustment for demographic covariates. The magnitude of this association is most dramatic among the youngest females-for example, the odds of intercourse among 13-year-old females with a partner six years older are more than six times the odds among 13-year-old females with a same-age partner (odds ratio, 6.4), while 17-year-old females with partners six years older have about twice the odds of intercourse when compared with those who have a same-age partner (2.1). CONCLUSIONS: Young adolescent females with substantially older partners are much more likely than their peers to have sex with their partner, which exposes them to the risks of pregnancy and sexually transmitted diseases.