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Mathew JKK, Gaikwad P, Pandian RMK, Rebekah G, Rabi S. Relation of Langerhans cell size to buccal carcinoma. Biotech Histochem 2024; 99:84-91. [PMID: 38293759 DOI: 10.1080/10520295.2024.2305499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024] Open
Abstract
Oral cancer decreases quality of life despite timely medical management. The carcinogens in tobacco products and their role in tumorigenesis are well documented. Langerhans cells (LCs) are a subset of antigen-presenting cells (APCs) that monitor the tumor microenvironment and engulf carcinogens and foreign bodies. We investigated the distribution and size of LCs and their relation to the mode of tobacco consumption and clinical outcome in patients with buccal carcinoma. We recruited patients with oral cancer who were scheduled for tumor excision and men with urethral stricture undergoing substitution urethroplasty using buccal mucosa. Normal and tumor-adjacent tissues were stained with CD1a antibody. The distribution and mean diameter of 100 LCs/patient were determined. We found significantly smaller LCs in patients who chewed only tobacco compared to those who consumed tobacco by other means. The size of LCs decreased significantly with progressive stages of malignant disease. We found that patients with larger LCs survived longer than those with smaller LCs during an average follow-up of 24 months. We suggest a relation between the size of LCs and clinical outcomes in patients with buccal carcinoma.
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Affiliation(s)
| | - Pranay Gaikwad
- Department of General Surgery Unit I, Christian Medical College, Vellore, India
| | | | - Grace Rebekah
- Department of Biostatistics, Christian Medical College, Vellore, India
| | - Suganthy Rabi
- Department of Anatomy, Christian Medical College, Vellore, India
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Mangieri LFL, Cezar-dos-Santos F, Trugilo KP, Watanabe MAE, de Jaime Curti RR, Castilha EP, Moretto SL, Fernandes CYM, de Oliveira JN, de Oliveira KB. Cross-Sectional Analysis of Human Papillomavirus Infection and Cytological Abnormalities in Brazilian Women. Pathogens 2023; 12:pathogens12010148. [PMID: 36678496 PMCID: PMC9863329 DOI: 10.3390/pathogens12010148] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/28/2022] [Accepted: 01/09/2023] [Indexed: 01/18/2023] Open
Abstract
The aim of this study was to determine the incidence of infections and cytological abnormalities and to investigate possible predisposing factors such as sociodemographic characteristics, sexual behavioral habits, and gynecological and obstetric backgrounds. Between 2013 and December 2016, a cross-sectional study was conducted among 429 consenting women, from whom cervical samples were tested for the presence of Human papillomavirus (HPV) by polymerase chain reaction (PCR). Susceptibility to HPV infection was assessed by binary logistic regression in light of possible predisposing factors, which were collected using a questionnaire. In our sample population, the prevalence of HPV infection was 49%; high-risk types had a higher prevalence of 89.1%. A larger proportion of HPV-infected women were under 25 years of age, were single, and had monthly incomes up to minimum wage. Multivariate binary logistic regression analysis showed that age younger than 25 years increased the odds of infection fivefold, while a monthly income of one to three minimum wages provided protection against HPV infection, even if the women were married or had a cohabiting partner. In the HPV-positive group, squamous intraepithelial lesions (SIL) occurred more frequently in women who earned up to one minimum wage monthly, but a monthly income of one to three minimum wages protected against the development of SIL. The results suggest that age, marital status, and monthly income are important cofactors for HPV infection and the development of SIL.
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Affiliation(s)
- Luis Fernando Lasaro Mangieri
- Department of Gynecology and Obstetrics, Health Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
| | - Fernando Cezar-dos-Santos
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
| | - Kleber Paiva Trugilo
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
| | - Maria Angelica Ehara Watanabe
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
| | - Rafaela Roberta de Jaime Curti
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
| | - Eliza Pizarro Castilha
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
| | - Sarah Lott Moretto
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
| | | | - Janaina Nicolau de Oliveira
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
| | - Karen Brajão de Oliveira
- Department of Pathological Sciences, Biological Sciences Center, State University of Londrina, Londrina 86057-970, PR, Brazil
- Correspondence: ; Tel.: +55-43-3371-5629
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Ma K, Li S, Wu S, Zhu J, Yang Y. Impact of smoking exposure on human papillomavirus clearance among Chinese women: A follow-up propensity score matching study. Tob Induc Dis 2023; 21:42. [PMID: 36949733 PMCID: PMC10026377 DOI: 10.18332/tid/161026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 02/01/2023] [Accepted: 02/07/2023] [Indexed: 03/24/2023] Open
Abstract
INTRODUCTION Smoking has been proven to increase the risk of cervical cancer, but it is still controversial whether smoking reduces women's ability to clear human papillomavirus (HPV) infection. This study investigated the association between smoking behaviors during follow-up and clearance of HPV infection in women with HPV-positive and pathologically normal uterine cervix in China, using a propensity score matching (PSM) analysis. METHODS The present prospective study included data from women examined in the Gynecology Department of Shanghai General Hospital from January 2018 to June 2020. Twenty patients who smoked throughout follow-up were selected and matched with 60 patients using the 1:3 PSM method on age, marital status, and whether infected with high-risk HPV (HR-HPV). At each visit, smoking and sexual behaviors were collected. The Kaplan-Meier method and a Cox proportional hazard regression model were used to evaluate the probability of clearing HPV infection within a 2-year follow-up. RESULTS A total of 80 patients were included in the study, all of whom were infected with at least one HR-HPV type at baseline. Current smokers had a lower likelihood of clearing the HPV infection than current non-smokers, after adjusting for a history of sexually transmitted diseases (STD), HPV infection status, and sexual behaviors during follow-up (AHR=0.478; 95% CI: 0.239-0.958, p=0.037). Additionally, longer duration, higher frequency and larger doses of smoking correlated with the lower clearance possibility of HPV infection (p for trend=0.029, 0.022 and 0.026, respectively). CONCLUSIONS This study showed that the use of tobacco throughout follow-up could increase the risk of a persistent HPV infection, this risk being higher for smokers with heavier tobacco consumption. Our results should alert HPV-positive women to reiterate the advice to cut-back on or stop smoking.
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Affiliation(s)
- Kangli Ma
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Shu Li
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Sufang Wu
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
| | - Jingfen Zhu
- School of Public Health, Shanghai Jiao Tong University, Shanghai, People’s Republic of China
| | - Yongbin Yang
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China
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Cross-Sectional Association of Blood Selenium with Glycemic Biomarkers among U.S. Adults with Normoglycemia in the National Health and Nutrition Examination Survey 2013–2016. Nutrients 2022; 14:nu14193972. [PMID: 36235626 PMCID: PMC9570941 DOI: 10.3390/nu14193972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/20/2022] [Accepted: 09/20/2022] [Indexed: 11/23/2022] Open
Abstract
Selenium (Se) remains to have an inconsistent relationship with glycemic biomarkers and the risk of developing type 2 diabetes (T2D). Few studies have investigated the relationship between blood Se and glycemic biomarkers among people with normoglycemia. We conducted a cross-sectional analysis using the U.S. National Health and Nutrition Examination Survey 2013–2016. Multivariable linear regression models were developed to examine the associations of blood Se with glycemic biomarkers, namely, fasting plasma glucose (FPG), hemoglobin A1c (HbA1c), insulin, and the oral glucose tolerance test (OGTT). Blood Se was treated as continuous (per log-10 increment) and categorical exposure (in quartiles) in separate regression models. We assessed the dose–response relationships by restricted cubic spline analysis. After excluding the participants with T2D or incomplete data, 2706 participants were analyzed. The highest quartile of blood Se was associated with increased FPG [adjusted β = 0.12, 95% Confidence Intervals (CI) = 0.04, 0.20], OGTT (adjusted β = 0.29, 95% CI = 0.02, 0.56), HbA1c (adjusted β = 0.04, 95% CI = 0.00, 0.07), and insulin (adjusted β = 2.50, 95% CI = 1.05, 3.95) compared with the lowest quartile. Positive associations were also observed between every log-10 increment of blood Se level and glycemic biomarkers, except for OGTT. A positive linear dose–response relationship existed between blood Se and FPG (Poverall = 0.003, Pnonlinear = 0.073) and insulin (Poverall = 0.004, Pnonlinear =0.060). BMI, age, and smoking status modified the associations of the highest quartile of Se (compared with the lowest quartile) with glycemic biomarkers. Overall, positive associations of blood Se with glycemic biomarkers were observed among U.S. adults with normoglycemia. These findings implied that people with normoglycemia need to be aware of the level of Se and other mineral intakes from diet and supplements. Further research is required to identify the mechanisms of excess Se in the progression of diabetes.
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Alimena S, Davis J, Fichorova RN, Feldman S. The vaginal microbiome: A complex milieu affecting risk of human papillomavirus persistence and cervical cancer. Curr Probl Cancer 2022; 46:100877. [PMID: 35709613 DOI: 10.1016/j.currproblcancer.2022.100877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/13/2022] [Accepted: 05/20/2022] [Indexed: 11/17/2022]
Abstract
The purpose of this review is to describe the existing literature regarding the relationship between the vaginal microbiome, human papillomavirus persistence, and cervical cancer risk, as well as to discuss factors that mediate these relationships. Data suggest that alterations in the vaginal microbiome affect the risk of human papillomavirus infection and persistence, which has downstream effects on cervical dysplasia and cancer risk. The homeostatic Lactobillus species L. crispatus, L. gasseri, L. jensenii act to promote a healthy vaginal environment, while L. iners and pathogens causing bacterial vaginosis are associated with increased inflammation, human papillomavirus infection, cervical dysplasia, and potentially cancer. There are, however, still several large gaps in the literature, particularly related to the modifiable and non-modifiable factors that affect the vaginal microbiome and ensuing risk of pre-cancerous and cancerous lesions. Evidence currently suggests that endogenous and exogenous hormones, tobacco products, and sexual practices influence vaginal microbiome composition, but the nuances of these relationships and how changes in these factors affect dysplasia risk are yet to be delineated. Other studies examining how diet, exercise, race, socioeconomic status, and genetic factors influence the vaginal microbiome are difficult to interpret in the setting of multiple confounders. Future studies should focus on how changes in these modulatory factors might promote a healthy vaginal microbiome to prevent or treat dysplasia in the lower female genital tract.
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Affiliation(s)
- Stephanie Alimena
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA.
| | | | - Raina N Fichorova
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA
| | - Sarah Feldman
- Department of Obstetrics, Gynecology and Reproductive Biology, Brigham and Women's Hospital, Boston, MA; Harvard Medical School, Boston, MA
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Morales-Prieto DM, Fuentes-Zacarías P, Murrieta-Coxca JM, Gutierrez-Samudio RN, Favaro RR, Fitzgerald JS, Markert UR. Smoking for two- effects of tobacco consumption on placenta. Mol Aspects Med 2021; 87:101023. [PMID: 34521556 DOI: 10.1016/j.mam.2021.101023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/22/2021] [Accepted: 09/07/2021] [Indexed: 12/14/2022]
Abstract
Tobacco smoking is an important public health issue recognized by the world health organization as one of the most serious, preventable risk factors for developing a series of pregnancy pathologies. Maternal smoking is positively associated with intrauterine growth restriction (IUGR) and gestational diabetes (GDM), but negatively associated with preeclampsia (PE). In this review, we examine epidemiological, clinical and laboratory studies of smoking effects on immunoregulation during pregnancy, trophoblast function, and placental vasculature development and metabolism. We aim to identify effects of tobacco smoke components on specific placental compartments or cells, which may contribute to the understanding of the influences of maternal smoking on placenta function in normal and pathological pregnancies. Data corroborates that in any trimester, smoking is unsafe for pregnancy and that its detrimental effects outweigh questionable benefits. The effects of maternal smoking on the maternal immune regulation throughout pregnancy and the impact of different tobacco products on fetal growth have not yet been fully understood. Smoking cessation rather than treatment with replacement therapies is recommended for future mothers because also single components of tobacco and its smoke may have detrimental effects on placental function.
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Affiliation(s)
| | | | | | | | - Rodolfo R Favaro
- Placenta Lab, Department of Obstetrics, University Hospital Jena, Jena, Germany
| | - Justine S Fitzgerald
- Placenta Lab, Department of Obstetrics, University Hospital Jena, Jena, Germany; Zentrum für ambulante Medizin, University Hospital Jena, Jena, Germany
| | - Udo R Markert
- Placenta Lab, Department of Obstetrics, University Hospital Jena, Jena, Germany.
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Analysis of the Prevalence of HTLV-1 Proviral DNA in Cervical Smears and Carcinomas from HIV Positive and Negative Kenyan Women. Viruses 2016; 8:v8090245. [PMID: 27608036 PMCID: PMC5035959 DOI: 10.3390/v8090245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 08/08/2016] [Accepted: 08/26/2016] [Indexed: 01/20/2023] Open
Abstract
The oncogenic retrovirus human T-cell lymphotropic virus type 1 (HTLV-1) is endemic in some countries although its prevalence and relationship with other sexually transmitted infections in Sub-Saharan Africa is largely unknown. A novel endpoint PCR method was used to analyse the prevalence of HTLV-1 proviral DNA in genomic DNA extracted from liquid based cytology (LBC) cervical smears and invasive cervical carcinomas (ICCs) obtained from human immunodeficiency virus-positive (HIV+ve) and HIV-negative (HIV−ve) Kenyan women. Patient sociodemographic details were recorded by structured questionnaire and these data analysed with respect to HIV status, human papillomavirus (HPV) type (Papilocheck®) and cytology. This showed 22/113 (19.5%) of LBC’s from HIV+ve patients were positive for HTLV-1 compared to 4/111 (3.6%) of those from HIV−ve women (p = 0.0002; odds ratio (OR) = 6.42 (2.07–26.56)). Only 1/37 (2.7%) of HIV+ve and none of the 44 HIV−ve ICC samples were positive for HTLV-1. There was also a significant correlation between HTLV-1 infection, numbers of sexual partners (p < 0.05) and smoking (p < 0.01). Using this unique method, these data suggest an unexpectedly high prevalence of HTLV-1 DNA in HIV+ve women in this geographical location. However, the low level of HTLV-1 detected in HIV+ve ICC samples was unexpected and the reasons for this are unclear.
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Prevalence and risk factors associated with anal intraepithelial neoplasia among HIV-positive men in Brazil. J Low Genit Tract Dis 2014; 18:128-35. [PMID: 24556612 DOI: 10.1097/lgt.0b013e31829ee855] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This study aimed to assess the prevalence of, and associated factors with, anal intraepithelial neoplasia (AIN) among HIV-positive men evaluated at public health services in Brazil. MATERIALS AND METHODS This is a multicenter cross-sectional study of HIV-positive male patients attending 6 public AIDS referral clinics in urban Brazil. Participants were interviewed for sociodemographic and behavioral characteristics. Anal swab specimens were collected for anal cytology and HPV DNA testing using L1 polymerase chain reaction. Univariate and multivariate analyses were performed to evaluate risk factors associated with the presence of low-grade squamous intraepithelial lesion (LSIL) and/or high-grade squamous intraepithelial lesion (HSIL). RESULTS Anal swabs were collected from 343 participants. Prevalence of LSIL/HSIL was 24.8%. The majority (60.1%) reported sexual intercourse with both men and women in their lifetime. At least 36.7% had 1 or more oncogenic HPV types. Four variables were independently associated with the presence of LSIL/HSIL in multivariate analysis: history of sex with both men and women (odds ratio [OR] = 4.8) or men only (OR = 6.2) compared with those having sex with women only; current cigarette smoking (OR = 2.2); current CD4(+) level between 200 and 500 cells/mm(3) (OR = 2.9) or below 200 cells/mm(3) (OR = 3.8) compared with CD4(+) level above 500 cells/mm(3); and presence of oncogenic anal HPV infection (OR = 9.6). CONCLUSIONS We found a high prevalence of AIN among HIV-positive men in Brazil. This population may serve as an important bridge population to women with implications for anogenital HPV infection in both men and women. Our findings confirm the need to assess screening programs for AIN among high-risk groups, similar to those used to prevent cervical cancer.
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Bedoya AM, Tate DJ, Baena A, Córdoba CM, Borrero M, Pareja R, Rojas F, Patterson JR, Herrero R, Zea AH, Sanchez GI. Immunosuppression in cervical cancer with special reference to arginase activity. Gynecol Oncol 2014; 135:74-80. [PMID: 25084511 DOI: 10.1016/j.ygyno.2014.07.096] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 07/16/2014] [Accepted: 07/23/2014] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Cervical cancer is characterized by an immunosuppressive microenvironment and a Th2-type cytokine profile. Expression of arginase (ASE), the enzyme that converts L-arginine into L-ornithine and urea, is stimulated by Th2-type cytokines. OBJECTIVE To assess the association of ASE activity and L-Arg metabolism products with cervical cancer. METHODS Sera of 87 and 41 women with histologically confirmed by colposcopy-directed biopsy SCC and CIN3 respectively and 79 with normal cytology or Low-Grade Squamous Intraepithelial Lesion (LSIL), were evaluated. Cytokines were measured using Milliplex Human cytokine/chemokine kit. Arginase (ASE) activity was determined using an enzymatic assay. Levels of L-arginine, L-ornithine, putrescine and spermine were determined by HPLC. RESULTS Significantly higher levels of ASE activity were observed in women with CIN3 (age-adjusted OR: 24.3; 95%CI: 3.82-155) and SCC (AOR: 9.8; 95%CI: 2.34-40.8). As expected, possibly due to high levels of ASE activity, higher levels of l-Arg were negatively associated with CIN3 (AOR: 0.03; 95%CI: 0.004-0.19) and SSC (AOR: 0.06; 95%CI: 0.02-0.24). Consistent with the role of ASE in the conversion of L-arginine to L-ornithine and polyamine production therefrom, women with cervical cancer had higher levels of spermine and putrescine. A correlation analysis revealed a significant albeit weak relationship between high levels of IL-10 and high levels of ASE (Pearson r=0.32, p-value=0.003) in women with cervical cancer. CONCLUSION This study indicates that ASE activity and L-Arg degradation mechanisms of immunosuppression are present in cervical cancer. The results foster research in the design of possible strategies to inhibit ASE activity for therapy of cervical cancer.
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Affiliation(s)
- Astrid M Bedoya
- Group Infection and Cancer, School of Medicine and Corporación Académica para el Estudio de Patologías Tropicales, Universidad de Antioquia UdeA, Calle 70 No 52-21, Medellín, Colombia; School of Microbiology, Universidad de Antioquia UdeA, Calle 70 No 52-21, Medellín, Colombia
| | - David J Tate
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA70112, USA
| | - Armando Baena
- Group Infection and Cancer, School of Medicine and Corporación Académica para el Estudio de Patologías Tropicales, Universidad de Antioquia UdeA, Calle 70 No 52-21, Medellín, Colombia
| | - Carlos M Córdoba
- Group Infection and Cancer, School of Medicine and Corporación Académica para el Estudio de Patologías Tropicales, Universidad de Antioquia UdeA, Calle 70 No 52-21, Medellín, Colombia; Hospital San Vicente Fundación, Calle 54 No 51D-154, Medellín, Colombia; Department of Gynecology and Obstetrics, School of Medicine, Universidad de Antioquia, UdeA, Calle 70 No 52-52, Medellin, Colombia
| | - Mauricio Borrero
- Group Infection and Cancer, School of Medicine and Corporación Académica para el Estudio de Patologías Tropicales, Universidad de Antioquia UdeA, Calle 70 No 52-21, Medellín, Colombia; Department of Gynecology and Obstetrics, School of Medicine, Universidad de Antioquia, UdeA, Calle 70 No 52-52, Medellin, Colombia; Instituto de Cancerología Las Américas, Carrera 70 No 1-35, Torre 5, Medellín, Colombia
| | - René Pareja
- Instituto de Cancerología Las Américas, Carrera 70 No 1-35, Torre 5, Medellín, Colombia
| | - Fredy Rojas
- Instituto de Cancerología Las Américas, Carrera 70 No 1-35, Torre 5, Medellín, Colombia
| | - John R Patterson
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA70112, USA
| | - Rolando Herrero
- Prevention and Intervention Group, International Agency for Research on Cancer, 150 Cours Albert Thomas, 69372 Lyon CEDEX 08, France
| | - Arnold H Zea
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center, New Orleans, LA70112, USA.
| | - Gloria I Sanchez
- Group Infection and Cancer, School of Medicine and Corporación Académica para el Estudio de Patologías Tropicales, Universidad de Antioquia UdeA, Calle 70 No 52-21, Medellín, Colombia.
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Ayari C, LaRue H, Hovington H, Caron A, Bergeron A, Têtu B, Fradet V, Fradet Y. High level of mature tumor-infiltrating dendritic cells predicts progression to muscle invasion in bladder cancer. Hum Pathol 2013; 44:1630-7. [DOI: 10.1016/j.humpath.2013.01.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Revised: 01/14/2013] [Accepted: 01/16/2013] [Indexed: 12/31/2022]
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Nyitray AG, Carvalho da Silva RJ, Baggio ML, Smith D, Abrahamsen M, Papenfuss M, Lin HY, Quiterio M, Salmerón J, Lazcano-Ponce E, Villa LL, Giuliano AR. Six-month incidence, persistence, and factors associated with persistence of anal human papillomavirus in men: the HPV in men study. J Infect Dis 2011; 204:1711-22. [PMID: 21964400 DOI: 10.1093/infdis/jir637] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Although there are limited numbers of incidence and persistence estimates for anal human papillomavirus (HPV) in women and in men who have sex with men (MSM), there are no such reports for men who have sex with women (MSW). METHODS Genotyping was performed on anal samples from men, aged 18-70, from São Paulo, Brazil; Cuernavaca, Mexico; and Tampa, Florida, who provided specimens at enrollment and the 6-month visit of a 4-year prospective study. Eligibility included no history of genital warts or human immunodeficiency virus. A total of 954 MSW and 156 MSM provided evaluable specimens at both visits. Persistence was defined as type-specific infection at each visit. RESULTS Incident anal infection was common among both MSM and MSW but generally higher for MSM for HPV groups and specific genotypes. A total of 5.1% of MSM and 0.0% of MSW had a persistent HPV-16 infection at the 6-month visit. Cigarette smoking among MSM and age among MSW were associated with persistent infection with any HPV genotype. CONCLUSIONS Although anal HPV infection is commonly acquired by both MSW and MSM, incident events and persistence occurred more often among MSM. Cigarette smoking is a modifiable risk factor that may contribute to HPV persistence among MSM.
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Affiliation(s)
- Alan G Nyitray
- H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA.
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