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1.
J Low Genit Tract Dis ; 22(4): 415-434, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-29994815

RESUMEN

Female genital cosmetic surgeries (FGCSs) and procedures are increasingly being advertised as common, simple, and complication-free, capable of not only improving aesthetic appearance but also increasing self-esteem and sexual pleasure.Guidelines for physicians and clear, scientifically correct information for patients must be made available, to minimize the number of ineffective or deleterious procedures.The International Society for the Study of Vulvovaginal Disease positions/recommendations regarding FGCS are as follows:1. There is a wide variation regarding genital normalcy; providers must be able to explain this to women.2. There are no data supporting FGCS including, G-spot augmentation, hymenoplasty, vulvar and perianal bleaching/whitening, vaginal tightening procedures, and other procedures aimed at increasing sexual function.3. Women should not be offered FGCS before the age of 18 years.4. Women undergoing FGCS should be evaluated by a provider with expertise in vulvovaginal diseases, including attention to their psychological, social, and sexual context. Evaluation by an experienced mental health provider should be considered when the motivation for seeking surgery and/or expectations are not clear or realistic.5. Female genital cosmetic surgery is not exempt from complications.6. Informed consent must always be obtained.7. Surgeons performing FGCS should refrain from solicitous advertising or promoting procedures without scientific basis, including on Web sites.8. Surgeons should not perform surgery that they do not agree with and explain their rationale/position when pressured by patients.9. The genital surgeon must be adequately trained in performing FGCS including knowledge of the anatomy, physiology and pathophysiology of the vulva, vagina and adjacent organs.


Asunto(s)
Guías de Práctica Clínica como Asunto , Cirugía Plástica/métodos , Enfermedades de la Vulva/patología , Enfermedades de la Vulva/cirugía , Adolescente , Adulto , Anciano , Femenino , Humanos , Persona de Mediana Edad , Sociedades Científicas , Adulto Joven
2.
Mem Inst Oswaldo Cruz ; 111(2): 120-7, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26872340

RESUMEN

This study investigated the rate of human papillomavirus (HPV) persistence, associated risk factors, and predictors of cytological alteration outcomes in a cohort of human immunodeficiency virus-infected pregnant women over an 18-month period. HPV was typed through L1 gene sequencing in cervical smears collected during gestation and at 12 months after delivery. Outcomes were defined as nonpersistence (clearance of the HPV in the 2nd sample), re-infection (detection of different types of HPV in the 2 samples), and type-specific HPV persistence (the same HPV type found in both samples). An unfavourable cytological outcome was considered when the second exam showed progression to squamous intraepithelial lesion or high squamous intraepithelial lesion. Ninety patients were studied. HPV DNA persistence occurred in 50% of the cases composed of type-specific persistence (30%) or re-infection (20%). A low CD4+T-cell count at entry was a risk factor for type-specific, re-infection, or HPV DNA persistence. The odds ratio (OR) was almost three times higher in the type-specific group when compared with the re-infection group (OR = 2.8; 95% confidence interval: 0.43-22.79). Our findings show that bonafide (type-specific) HPV persistence is a stronger predictor for the development of cytological abnormalities, highlighting the need for HPV typing as opposed to HPV DNA testing in the clinical setting.


Asunto(s)
ADN Viral/clasificación , Seropositividad para VIH/virología , VIH/clasificación , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/diagnóstico , Complicaciones Infecciosas del Embarazo/virología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/diagnóstico , Adulto , Recuento de Linfocito CD4 , Enfermedad Crónica , Coinfección , Efecto Citopatogénico Viral , ADN Viral/aislamiento & purificación , Femenino , VIH/aislamiento & purificación , Humanos , Estudios Longitudinales , Tipificación Molecular/métodos , Papillomaviridae/clasificación , Infecciones por Papillomavirus/virología , Filogenia , Valor Predictivo de las Pruebas , Embarazo , Estudios Prospectivos , Recurrencia , Infecciones del Sistema Genital/virología , Factores de Riesgo , Factores Socioeconómicos , Adulto Joven
3.
Exp Mol Pathol ; 98(2): 308-11, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25579180

RESUMEN

BACKGROUND: DNA methylation is the most important epigenetic change involved in the control of gene expression in human cells. Methylation of the p16(INK4a) gene occurs early in the development of cervical cancer. Low-grade squamous intraepithelial lesions (LSILs) are prevalent, and their behavior is variable. OBJECTIVE: To identify the HPV DNA type, detect the methylation status of the p16(INK4A) gene, and analyze their association with the cytological evolution of LSIL over a period of two years. METHODS: We conducted a cohort study with 40 participants. Cervical scrapings were collected for cytological and molecular analysis. HPV DNA detection and typing were performed by means of polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP). Methylation-specific PCR was performed to detect methylation. RESULTS: HPV DNA was detected in 87% of the cases, and type 16 was the most frequent type. Methylation was detected in 11% of the cases and did not exhibit a significant correlation with the HPV type. Unfavorable cytological evolution exhibited a significant association with the presence of methylation. CONCLUSION: HPV 16 was the most frequently detected type of HPV in LSIL. Methylation of the p16(INK4A) gene was infrequent and occurred independent of the presence of HPV DNA. Methylation of the p16(INK4a) gene exhibited a significant correlation with persistence/progression of LSIL.


Asunto(s)
Inhibidor p16 de la Quinasa Dependiente de Ciclina/genética , Metilación de ADN/genética , Papillomavirus Humano 16/genética , Lesiones Intraepiteliales Escamosas de Cuello Uterino/genética , Displasia del Cuello del Útero/genética , Adulto , Biomarcadores de Tumor , Estudios de Cohortes , ADN Viral/genética , Femenino , Humanos , Persona de Mediana Edad , Infecciones por Papillomavirus/diagnóstico , Lesiones Intraepiteliales Escamosas de Cuello Uterino/virología , Adulto Joven , Displasia del Cuello del Útero/virología
4.
Exp Mol Pathol ; 98(1): 119-23, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25579181

RESUMEN

OBJECTIVE: To analyze the presence of HPV-DNA and TIMP-2 gene methylation in cervical precursor and invasive lesions, as well as to study the associations among the latter, the presence of HPV-DNA, and the clinical evolution of such lesions. METHODS: Cross-sectional study that includes 49 biopsy or brush smear samples from women with a normal cervix, LSIL, HSIL, microinvasive carcinoma and invasive carcinoma. The presence of HPV-DNA and specific methylation was analyzed using PCR. Thirty-eight biopsy samples for HSIL, microinvasive carcinoma and frank invasive carcinoma as well as 11 brush smear samples for LSIL and normal cervices were analyzed. RESULTS: TIMP-2 gene methylation was detected in 86.8% (33/38) of the samples from the group with lesions and 50% (4/8) of the normal samples (p=0.03). HPV-DNA was detected in 81.6% (31/38) of the samples from the group with lesions and 25% (2/8) of the normal samples (p=0.003). HPV-DNA was more frequent in the methylated samples (50%), and the group with methylation had a higher risk of unfavorable evolution than the group without methylation; however, such observations were not statistically significant (p=0.19). CONCLUSION: TIMP-2 gene methylation and the presence of HPV-DNA were characteristic of the group with cervical lesions. Methylation was not associated with the presence of HPV-DNA or an unfavorable clinical evolution.


Asunto(s)
Biomarcadores de Tumor/genética , Carcinoma de Células Escamosas/genética , Metilación de ADN , Infecciones por Papillomavirus/genética , Inhibidor Tisular de Metaloproteinasa-2/genética , Displasia del Cuello del Útero/genética , Neoplasias del Cuello Uterino/genética , Adulto , Anciano , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/virología , Estudios Transversales , ADN Viral/genética , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Invasividad Neoplásica , Papillomaviridae/genética , Infecciones por Papillomavirus/patología , Infecciones por Papillomavirus/virología , Reacción en Cadena de la Polimerasa , Pronóstico , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/virología , Displasia del Cuello del Útero/patología , Displasia del Cuello del Útero/virología
5.
Gynecol Oncol ; 128(1): 107-112, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-23063764

RESUMEN

OBJECTIVE: HIV(+) pregnant women are at a higher risk of HPV infection and development of cervical cancer. Our objectives were to assess the prevalence and HPV types in HIV(+) pregnant women and to identify risk factors for HPV infection and cytological abnormalities. METHODS: Cervicovaginal smears were collected during pregnancy from 140 women. Partial HPV L1 gene and the exon 4 of the human TP53 gene (containing codon 72) were PCR-amplified and sequenced. Amplified products indicating multiple HPV infection were further cloned and sequenced. The association of demographic, obstetric and HIV-related clinical variables with HPV infection and cervical lesions was tested by univariate analyses, and significant factors were subsequently tested by logistic regression multivariate analysis. RESULTS: HPV DNA tested positive for 118 patients and HPV types were identified in 104 samples. Twenty-eight different types were found, HPV-16 and HPV-58 being the most prevalent. High-risk types were present in 79.8% of samples and multiple infections in 16.3%. Abnormal cervical smears were found in 44 patients (31.4%). Absolute CD4(+) T-cell counts below 350 were associated with HPV infection. Younger age was associated with cervical abnormalities and higher CD4(+) T-cell count was an apparent protective factor. CONCLUSIONS: We found a high prevalence of HPV infection and high-risk types in this cohort. Our results highlighted the relevance of immune system integrity rather than TP53 variants for protecting this highly vulnerable population to HPV infection and carcinogenesis.


Asunto(s)
Cuello del Útero/patología , Coinfección/epidemiología , Infecciones por VIH/epidemiología , Papillomaviridae/clasificación , Infecciones por Papillomavirus/epidemiología , Complicaciones Infecciosas del Embarazo/epidemiología , Adulto , Brasil/epidemiología , Recuento de Linfocito CD4 , Coinfección/etiología , Femenino , Infecciones por VIH/etiología , Infecciones por VIH/inmunología , Humanos , Infecciones por Papillomavirus/etiología , Infecciones por Papillomavirus/inmunología , Infecciones por Papillomavirus/virología , Embarazo , Complicaciones Infecciosas del Embarazo/etiología , Complicaciones Infecciosas del Embarazo/inmunología , Prevalencia , Estudios Prospectivos , Factores de Riesgo , Frotis Vaginal
6.
Front Immunol ; 14: 1147950, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37180114

RESUMEN

The relationship among microbiome, immunity and cervical cancer has been targeted by several studies, yet many questions remain unanswered. We characterized herein the virome and bacteriome from cervical samples and correlated these findings with innate immunity gene expression in a Brazilian convenience sample of HPV-infected (HPV+) and uninfected (HPV-) women. For this purpose, innate immune gene expression data were correlated to metagenomic information. Correlation analysis showed that interferon (IFN) is able to differentially modulate pattern recognition receptors (PRRs) expression based on HPV status. Virome analysis indicated that HPV infection correlates to the presence of Anellovirus (AV) and seven complete HPV genomes were assembled. Bacteriome results unveiled that vaginal community state types (CST) distribution was independent of HPV or AV status, although bacterial phyla distribution differed between groups. Furthermore, TLR3 and IFNαR2 levels were higher in the Lactobacillus no iners-dominated mucosa and we detected correlations among RIG-like receptors (RLR) associated genes and abundance of specific anaerobic bacteria. Collectively, our data show an intriguing connection between HPV and AV infections that could foster cervical cancer development. Besides that, TLR3 and IFNαR2 seem to create a protective milieu in healthy cervical mucosa (L. no iners-dominated), and RLRs, known to recognize viral RNA, were correlated to anaerobic bacteria suggesting that they might be related to dysbiosis.


Asunto(s)
Microbiota , Infecciones por Papillomavirus , Neoplasias del Cuello Uterino , Femenino , Humanos , Cuello del Útero , Neoplasias del Cuello Uterino/genética , Neoplasias del Cuello Uterino/metabolismo , Brasil , Receptor Toll-Like 3/genética , Bacterias/genética , Expresión Génica
7.
J Low Genit Tract Dis ; 16(2): 133-9, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22371043

RESUMEN

OBJECTIVE: The purpose of this study was to discuss our investigation of the hypermethylation of promoter regions of tumor suppressor genes, such as death-associated protein kinase (DAPK) and p16, in vulvar lichen sclerosus (LS), in comparison with a control group. MATERIALS AND METHODS: Promoter hypermethylation of DAPK and p16 was investigated using 24 vulvar biopsies of patients with LS who had received no previous treatment. The control group was composed of 15 patients with no vulvar disease. The DNA of subjects was treated with sodium bisulphate, and the genes under study were subjected to methylation-specific polymerase chain reaction. The resulting polymerase chain reaction products were amplified and analyzed using a 10% polyacrylamide gel. RESULTS: The mean age of the patients with LS was 57 years (the majority were postmenopausal). In the control group, the mean age of the patients was 50 years (p = .151). Methylation of the promoter region of DAPK was found in 4 (17%) of the 23 patients analyzed, and p16 promoter region methylation was found in 8 patients (35%). Two cases of methylation of the DAPK gene were also found to be methylated for the p16 gene. In the control group, no methylation was found in the patients analyzed for the DAPK gene and methylation was found in 3 (21%) of the 14 patients analyzed for the p16 gene (p = .190 and p = .316, respectively). CONCLUSIONS: Methylation of the DAPK and p16 genes, although not sufficient to dictate prognosis of the disease, should not be underestimated because it may form part of a process of genetic and epigenetic alterations that in the future could become relevant to malignant transformation.


Asunto(s)
Proteínas Reguladoras de la Apoptosis/genética , Proteínas Quinasas Dependientes de Calcio-Calmodulina/genética , Metilación de ADN , Proteínas de Neoplasias/genética , Regiones Promotoras Genéticas , Liquen Escleroso Vulvar/genética , Inhibidor p16 de la Quinasa Dependiente de Ciclina , Proteínas Quinasas Asociadas a Muerte Celular , Electroforesis en Gel de Poliacrilamida , Femenino , Humanos , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa/métodos , Pronóstico , Vulva/patología , Liquen Escleroso Vulvar/diagnóstico , Liquen Escleroso Vulvar/patología
8.
Rev Bras Ginecol Obstet ; 44(5): 483-488, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35139566

RESUMEN

OBJECTIVE: To determine the prevalence of the atypical glandular cells (AGCs) cytology and to analyze its clinical significance in different age ranges. METHODS: Retrospective observational study using computerized data from the Brazilian National Cancer Institute, including women screened between January 2002 and December 2008. The women included were those with an AGC result who were properly followed-up with colposcopy and a second cytology. RESULTS: A total of 132,147 cytopathological exams were performed during the study period. Five-hundred and thirty-three (0.4%) women with AGC cytology were identified and, of these, 69.41% (370/533) were properly referred for colposcopy and a new cytology. Most of the women (79.2%) with a 1st or 2nd AGC cytology were between the ages of 25 and 54 years. The 2nd cytology demonstrated 67.6% (250/370) of normality, 24.5% (91/370) of squamous atypia, and 6.2% (23/370) of AGC, 0.8% (3/370) adenocarcinoma in situ and 0.8% (3/370) adenocarcinoma invasor. On biopsy of the women with a second AGC cytology, 43.4% (10/23) had normal histology, 43.4% (10/23) had squamous lesions, 8.7% (2/23) had invasive adenocarcinoma, and 1.2% (1/23) had an inconclusive report. All of the women with high-grade squamous intraepithelial lesion (HSIL) or invasive adenocarcinoma (respectively 5 and 2 patients), after a 2nd AGC cytology were 25 years old or older. CONCLUSION: The prevalence of the AGC cytology was low in the studied population. Most of the AGC cytology cases occurred in adult women between the ages of 25 and 54. Although most of the patients had normal histology after follow-up, several of them presented with squamous intraepithelial lesions or invasive adenocarcinoma.


OBJETIVO: Determinar a prevalência de citologia com laudo de células glandulares atípicas (AGCs, na sigla em inglês) e analisar a significância clínica nas diferentes faixas etárias MéTODOS: Estudo observacional retrospectivo, usando os dados arquivados no sistema do Instituto Nacional de Câncer no Brasil, que incluiu mulheres rastreadas entre janeiro de 2002 a dezembro de 2008. As mulheres incluídas tinham citologia com resultado de AGCs, que foram acompanhadas com colposcopia e nova citologia RESULTADOS: Um total de132,147 exames citopatológicos foram incluídos durante o período de estudo. Quinhentas e trinta e três mulheres com citologia de AGC foram identificadas e destas, 69.41% (370) foram encaminhadas para colposcopia e nova citologia. A prevalência de citologia de AGC na população estudada foi 0.4%. A maioria das mulheres (79.22%) com resultado citológico de AGC tinham idade entre 25 e 54 anos. A segunda citologia demonstrou 67.56% (250/370) de normalidade, 24.5% (91/370) de atipias escamosas, e 6.2% (23/370) de AGC. Na biopsia das mulheres com a 2ª citologia de AGC, 43.4% (10/23) tinham histologia normal, 43.4% (10/23) tinha lesões escamosas, 8.7% (2/23) tinha adenocarcinoma invasor e 1.2% (1/23) tinha laudo inconclusivo. Todas as mulheres com lesões intraepiteliais escamosas de alto grau (HSIL, na sigla em inglês) ou adenocarcinoma invasor (respectivamente 5 e 2 pacientes), após a 2ª citologia com AGC, tinham 25 anos de idade ou mais. CONCLUSãO: A prevalência de citologia com AGC foi baixa na população estudada. Muitos casos de citologia com AGC apareceram em mulheres adultas, entre 25 e 54 anos de idade. Embora a maioria das pacientes tiveram histologia normal após seguimento, várias apresentaram lesões intraepiteliais escamosas ou glandulares invasoras.


Asunto(s)
Adenocarcinoma , Carcinoma de Células Escamosas , Displasia del Cuello del Útero , Neoplasias del Cuello Uterino , Adenocarcinoma/epidemiología , Adenocarcinoma/patología , Adenocarcinoma/prevención & control , Adulto , Carcinoma de Células Escamosas/patología , Cuello del Útero/patología , Colposcopía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Embarazo , Neoplasias del Cuello Uterino/epidemiología , Neoplasias del Cuello Uterino/patología , Neoplasias del Cuello Uterino/prevención & control , Frotis Vaginal , Displasia del Cuello del Útero/patología
9.
Am J Obstet Gynecol ; 205(4): 360.e1-4, 2011 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-21855846

RESUMEN

OBJECTIVE: The purpose of this study was to evaluate colposcopic sensitivity in the diagnosis of microinvasive squamous carcinoma of the cervix. STUDY DESIGN: We conducted a cross-sectional study in 151 patients from 1991-2008. The colposcopic findings of microinvasion suspicion were described by the International Federation for Cervical Pathology and Colposcopy in 2003. RESULTS: There has been colposcopic suspicion of invasion in 35 patients, which represents a sensitivity of 23%. The major colposcopic findings that were observed in the transformation zone included acetowhite epithelium in 21% (32/151 patients), coarse punctuation in 19% (29/151 patients), coarse mosaic in 17% (26/151 patients), and atypical vessels in 3.9% (6/151 patients). Suspicion of microinvasion was found in 14.5% of unsatisfactory colposcopy and in 8.6% of satisfactory colposcopy. CONCLUSION: The sensitivity of colposcopy in the diagnosis of microinvasive carcinoma of the cervix was low. Colposcopy plays an important role in directing the biopsy to the most suspicious area. The definitive diagnosis of microinvasive squamous carcinoma is established only by histologic study.


Asunto(s)
Carcinoma de Células Escamosas/patología , Colposcopía , Neoplasias del Cuello Uterino/patología , Adulto , Anciano , Estudios Transversales , Femenino , Humanos , Persona de Mediana Edad , Invasividad Neoplásica , Estadificación de Neoplasias , Sensibilidad y Especificidad , Adulto Joven
10.
J Low Genit Tract Dis ; 14(4): 282-6, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20885153

RESUMEN

OBJECTIVE: This article aimed to investigate the hypermethylation of promoter regions of tumor suppressor genes, such as death-associated protein kinase (DAPK) and p16, in vulvar lichen sclerosus (LS). MATERIALS AND METHODS: The promoter hypermethylation of DAPK and p16 was investigated from 15 vulvar biopsies of patients with LS who had had no previous treatment. DNA was treated with sodium bisulfate and underwent methylation-specific polymerase chain reaction of these genes. The amplified polymerase chain reaction products were analyzed by 10% polyacrylamide gel. RESULTS: The mean age of the patients was 57 years (most were postmenopausal). Methylation of the promoter region of DAPK was found in 2 (13%) of 15 patients analyzed, and p16 promoter region methylation was found in 7 patients (47%). The samples that showed DAPK methylation also showed p16 methylation. CONCLUSIONS: Methylation of DAPK and p16 represent alterations that might occur in cell cycle control in LS. The hypothesis is that patients who had methylated genes in this study, mainly the 2 cases in which there has been methylation in both studied genes, may be more susceptible to the development of differentiated vulvar intraepithelial neoplasia or vulvar cancer. Methylation may play a role in progress of vulvar carcinogenesis.


Asunto(s)
Proteínas Reguladoras de la Apoptosis/genética , Proteínas Quinasas Dependientes de Calcio-Calmodulina/genética , Metilación de ADN , ADN/metabolismo , Proteínas de Neoplasias/genética , Regiones Promotoras Genéticas , Liquen Escleroso Vulvar/patología , Inhibidor p16 de la Quinasa Dependiente de Ciclina , Proteínas Quinasas Asociadas a Muerte Celular , Electroforesis en Gel de Poliacrilamida/métodos , Femenino , Humanos , Persona de Mediana Edad , Patología Molecular/métodos , Reacción en Cadena de la Polimerasa/métodos
11.
J Low Genit Tract Dis ; 14(4): 319-22, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20885159

RESUMEN

OBJECTIVE: We investigated the presence of the Epstein-Barr virus (EBV) and human papillomavirus (HPV) in patients with vulvar lichen sclerosus (LS). MATERIALS AND METHODS: We investigated the presence of HPV and EBV from 34 vulvar biopsies of patients with LS who had had no previous treatment and from 17 normal vulvar brushings used as controls. We used polymerase chain reaction to amplify DNA sequences of these viruses. Human papillomavirus and EBV DNA detection was carried out using MY09/MY11 and TC67/TC69 consensus primers, respectively. The amplified polymerase chain reaction products were analyzed by 10% polyacrylamide gel. RESULTS: The mean age of the patients was 57 years old, with the majority postmenopausal. Human papillomavirus DNA was not found in the LS samples studied, but it was found in 23.2% (4/17) of the controls. However, EBV DNA was found in 26.5% (9/34) of the LS samples analyzed, and it was not found in the controls. CONCLUSIONS: Our results showed no relationship between HPV and LS. This result is in accordance with the literature. We have found 26.5% of EBV in our samples. This is a preliminary study, and the follow-up of these patients will elucidate whether EBV could play a role in cases of LS.


Asunto(s)
Infecciones por Virus de Epstein-Barr/complicaciones , Herpesvirus Humano 4/aislamiento & purificación , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/complicaciones , Liquen Escleroso Vulvar/virología , Biopsia , Cartilla de ADN/genética , ADN Viral/genética , ADN Viral/aislamiento & purificación , Electroforesis en Gel de Poliacrilamida , Femenino , Humanos , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa/métodos , Virología/métodos , Vulva/patología , Vulva/virología
12.
Front Immunol ; 11: 2078, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33013878

RESUMEN

While most HPV infections are asymptomatic and clear spontaneously, persistent infection with high-risk HPVs is associated with cervical cancer and with increased risk of HIV acquisition. Although several hypotheses have been proposed to explain this phenomenon, none has been confirmed. Our aim was to investigate the expression of host factors involved in the susceptibility to HIV infection among HPV-infected women. Cervical samples were collected to characterize the expression levels of HIV susceptibility markers in the mucosa of HPV-infected compared with HPV-uninfected women. No differences in the frequency of CCR5+, integrin α4ß7+, activated and memory CD4+ T-cell were detected between the groups. We additionally evaluated the expression levels of genes involved in innate immune responses and in cell adhesion. HPV infected patients expressed higher levels of TLR9 and lower levels of pattern recognition receptors that recognize RNA (TLR3, TLR7, and MDA5/IFIH1). We also detected an impaired IFN pathway, with an increased Type I IFN and a decreased IFNα2 receptor expression. HPV+ samples displayed reduced expression of genes for adherens and tight junctions. Taken together, these results suggest that although HPV infection does not result in the recruitment/activation of susceptible CD4+ T-cell in the female genital tract, it leads to changes in the innate antiviral immune responses and in cell adhesion that are likely to favor HIV infection.


Asunto(s)
Moléculas de Adhesión Celular/genética , Cuello del Útero/patología , Infecciones por VIH/inmunología , VIH-1/fisiología , Membrana Mucosa/inmunología , Papillomaviridae/fisiología , Infecciones por Papillomavirus/inmunología , Neoplasias del Cuello Uterino/inmunología , Adulto , Biomarcadores/metabolismo , Susceptibilidad a Enfermedades , Femenino , Humanos , Inmunidad Innata , Persona de Mediana Edad , Riesgo , Transcriptoma , Neoplasias del Cuello Uterino/virología , Adulto Joven
13.
J Reprod Med ; 52(1): 35-7, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17286066

RESUMEN

BACKGROUND: Extraosseous chondromas are cartilaginous tissue tumors with a nodular appearance on the hands and feet. There are reports of these tumors occurring on the knee, neck, back, liver and testis and in the oral cavity. Occurrence in the pelvis is generally rare. The origin is metaplastic and may be mesenchymal or subcelomic. Treatment is by surgery and requires removing the tumor with a safety margin. Recurrences are infrequent, and distant metastasis has never been reported. CASE: An 11-year-old girl was referred for a painless solid tumor located on the mons pubis. Surgical removal of the tumor with a safety margin was performed. Macroscopically, the tumor was shiny when cut open and yellowish. Microscopic examination revealed a very distinct cartilage-forming tumor compatible with extraosseous chondroma. Two years after the operation, the patient had no recurrence. CONCLUSION: Extraosseous chondroma is a rare benign tumor. Finding it in children is even less frequent, and localization in the vulvar region has never before been reported. This appears to be the first such report of this type of tumor in this region and age range.


Asunto(s)
Condroma/diagnóstico , Enfermedades de la Vulva/diagnóstico , Niño , Condroma/patología , Condroma/cirugía , Femenino , Humanos , Enfermedades de la Vulva/patología , Enfermedades de la Vulva/cirugía
14.
J Reprod Med ; 52(1): 38-42, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17286067

RESUMEN

OBJECTIVE: To characterize decorin and chondroitin sulfate (CS) expression in lichen sclerosus (LS). STUDY DESIGN: Thirty-one untreated vulvar LS lesions were biopsed, and hematoxylin-eosin-stained cases were graded according to Hewitt's classification. Immunohistochemistry was performed using antibodies directed against human decorin diluted 1:500 and CS diluted 1:200. The control group, made up of cutaneous fragments from vulvoperineal corrective surgeries or nymphoplasties, represented 22 patients. RESULTS: Decorin and CS were present at the LS hyaline zone in different moments of matrix modulation. In all Hewitt stages CS prevailed at the extracellular matrix in cases with a compact aspect of the hyaline zone, while decorin was seen only in areas of less compactness. Normal vulvar tissue revealed only the presence of CS in juxtaepithelial zones. No decorin immunoexpression was found in normal vulvar skin. CONCLUSION: Decorin and CS deposition in vulvar LS varies in the distinct histologic stages, which probably reflect the importance of these molecules in matricial remodeling in this disorder. Decorin may play an important role in cases of LS.


Asunto(s)
Sulfatos de Condroitina/metabolismo , Proteínas de la Matriz Extracelular/metabolismo , Proteoglicanos/metabolismo , Liquen Escleroso Vulvar/metabolismo , Liquen Escleroso Vulvar/patología , Decorina , Femenino , Humanos , Distribución Tisular
15.
Rev. bras. ginecol. obstet ; 44(5): 483-488, May 2022. tab, graf
Artículo en Inglés | LILACS | ID: biblio-1387909

RESUMEN

Abstract Objective To determine the prevalence of the atypical glandular cells (AGCs) cytology and to analyze its clinical significance in different age ranges. Methods Retrospective observational study using computerized data from the Brazilian National Cancer Institute, including women screened between January 2002 and December 2008. The women included were those with an AGC result who were properly followed-up with colposcopy and a second cytology. Results A total of 132,147 cytopathological exams were performed during the study period. Five-hundred and thirty-three (0.4%) women with AGC cytology were identified and, of these, 69.41% (370/533) were properly referred for colposcopy and a new cytology. Most of the women (79.2%) with a 1st or 2nd AGC cytology were between the ages of 25 and 54 years. The 2nd cytology demonstrated 67.6% (250/370) of normality, 24.5% (91/370) of squamous atypia, and 6.2% (23/370) of AGC, 0.8% (3/370) adenocarcinoma in situ and 0.8% (3/370) adenocarcinoma invasor. On biopsy of the women with a second AGC cytology, 43.4% (10/23) had normal histology, 43.4% (10/23) had squamous lesions, 8.7% (2/23) had invasive adenocarcinoma, and 1.2% (1/23) had an inconclusive report. All of the women with high-grade squamous intraepithelial lesion (HSIL) or invasive adenocarcinoma (respectively 5 and 2 patients), after a 2nd AGC cytology were 25 years old or older. Conclusion The prevalence of the AGC cytology was low in the studied population. Most of the AGC cytology cases occurred in adult women between the ages of 25 and 54. Although most of the patients had normal histology after follow-up, several of them presented with squamous intraepithelial lesions or invasive adenocarcinoma.


Resumo Objetivo Determinar a prevalência de citologia com laudo de células glandulares atípicas (AGCs, na sigla em inglês) e analisar a significância clínica nas diferentes faixas etárias Métodos Estudo observacional retrospectivo, usando os dados arquivados no sistema do Instituto Nacional de Câncer no Brasil, que incluiu mulheres rastreadas entre janeiro de 2002 a dezembro de 2008. As mulheres incluídas tinham citologia com resultado de AGCs, que foram acompanhadas com colposcopia e nova citologia Resultados Um total de132,147 exames citopatológicos foram incluídos durante o período de estudo. Quinhentas e trinta e três mulheres com citologia de AGC foram identificadas e destas, 69.41% (370) foram encaminhadas para colposcopia e nova citologia. A prevalência de citologia de AGC na população estudada foi 0.4%. A maioria das mulheres (79.22%) com resultado citológico de AGC tinham idade entre 25 e 54 anos. A segunda citologia demonstrou 67.56% (250/370) de normalidade, 24.5% (91/370) de atipias escamosas, e 6.2% (23/370) de AGC. Na biopsia das mulheres com a 2ª citologia de AGC, 43.4% (10/23) tinham histologia normal, 43.4% (10/23) tinha lesões escamosas, 8.7% (2/23) tinha adenocarcinoma invasor e 1.2% (1/23) tinha laudo inconclusivo. Todas as mulheres com lesões intraepiteliais escamosas de alto grau (HSIL, na sigla em inglês) ou adenocarcinoma invasor (respectivamente 5 e 2pacientes), após a 2ª citologia com AGC, tinham 25 anos de idade ou mais. Conclusão A prevalência de citologia com AGC foi baixa na população estudada. Muitos casos de citologia com AGC apareceram em mulheres adultas, entre 25 e 54 anos de idade. Embora a maioria das pacientes tiveram histologia normal após seguimento, várias apresentaram lesões intraepiteliais escamosas ou glandulares invasoras.


Asunto(s)
Humanos , Femenino , Displasia del Cuello del Útero , Células Epiteliales , Detección Precoz del Cáncer
16.
J Reprod Med ; 49(10): 796-9, 2004 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-15568402

RESUMEN

OBJECTIVE: To clarify the role of human papillomavirus (HPV) and Epstein-Barr virus (EBV) infection in vulvar carcinogenesis in relation to the mutated p53 gene. STUDY DESIGN: Polymerase chain reaction (PCR) was used to amplify DNA sequences of the viruses and PCR-single-strand conformation polymorphism analysis to screen for p53 gene mutations in exons 5-8 from formalin-fixed, paraffin-embedded blocks including 10 undifferentiated vulvar intraepithelial neoplasia (VIN) specimens. RESULTS: HPV and EBV DNA was found in 75% (6/8) and 0% (0/10) of VIN tissues, respectively. Oncogenic HPV 16 was the predominant type. HPV DNA extraction was not possible in 2 VIN specimens. p53 Gene mutation was shown in 20% (2/10) of VIN lesions. No correlation was found between p53 gene mutation the presence of viral HPV or EBV DNA. Mutated p53 was equally distributed between HPV-positive and -negative VIN cases. CONCLUSION: Our results suggest that although most undifferentiated VIN lesions are associated with HPV infection, p53 mutations may occur independent of viral infection even in the presence of oncogenic HPV. HPV, but not EBV or p53 gene mutation, can play a role in the pathogenesis of undifferentiated VIN.


Asunto(s)
Carcinoma in Situ/virología , Genes p53/genética , Herpesvirus Humano 4/aislamiento & purificación , Mutación , Papillomaviridae/aislamiento & purificación , Neoplasias de la Vulva/virología , Adulto , Anciano , Secuencia de Bases , Carcinoma in Situ/genética , Carcinoma in Situ/mortalidad , Estudios de Cohortes , Sondas de ADN de HPV/análisis , ADN Viral/análisis , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Persona de Mediana Edad , Datos de Secuencia Molecular , Reacción en Cadena de la Polimerasa , Pronóstico , Medición de Riesgo , Sensibilidad y Especificidad , Tasa de Supervivencia , Neoplasias de la Vulva/genética , Neoplasias de la Vulva/mortalidad
17.
J. Bras. Patol. Med. Lab. (Online) ; 54(6): 393-400, Nov.-Dec. 2018. tab, graf
Artículo en Inglés | LILACS-Express | LILACS | ID: biblio-975863

RESUMEN

ABSTRACT Introduction: Sexually transmitted infections (STI) remain a major public health problem and surveillance is crucial for prevention and control strategies. Objective: Our aim was to assess the prevalence of STI in a reference center for gynecology in Rio de Janeiro, Brazil. Materials and methods: It is a cross-sectional study conducted between August 2016 and June 2017. Whole blood and cervical cells were collected from 62 women and tested for human papillomavirus (HPV), human immunodeficiency virus (HIV), syphilis, chlamydia, gonorrhea and herpes simples virus 1 and 2 (HSV-1/2). Cervical lesions were diagnosed by cytopathology and in some patients by colposcopy (79%). Other STI were evaluated during clinical examination. Results: Cervical lesions were detected by cytopathology examinations in 46.8% of patients; those with a history of four sexual partners were at higher risk of developing them. There was moderate agreement between the cytopathology e colposcopy results (Kappa = 0.69). The prevalence of HSV (96.7%), syphilis (6.4%) and HIV (3.2%) were higher than that described in the literature, while the prevalence of chlamydia (6.4%) and gonorrhea (1.6%) were similar. HPV was detected in 53.2% of women, 32.3% of which were infected by HPV 16. In the context of co-infections, 38 women (61.3%) presented more than one STI. Conclusion: Since most of the women analyzed were affected by more than one STI, our results suggest that routine screening for these infections at health centers would help in early detection, treatment and prevention of these infections. These measures would also impact on patients' cervical cancer control.


RESUMO Introdução: As infecções sexualmente transmissíveis (ISTs) ainda são um importante problema de saúde pública, e a vigilância é essencial para sua prevenção e seu controle. Objetivo: Avaliar a prevalência das ISTs em uma unidade de referência ginecológica no Rio de Janeiro, Brasil. Materiais e métodos: Trata-se de um estudo transversal realizado entre agosto de 2016 e junho de 2017. Foram coletados sangue total e células cervicais de 62 mulheres e realizados testes para detecção de papiloma vírus humano (HPV), vírus da imunodeficiência humana (HIV), sífilis, clamídia, gonorreia e vírus do herpes simples 1 e 2 (HSV-1/2). As lesões cervicais foram diagnosticadas por citopatologia, e em algumas pacientes, por colposcopia (79%). Outras ISTs foram avaliadas durante o exame clínico. Resultados: Foram encontradas lesões cervicais pelo exame citopatológico em 46,8% das pacientes; aquelas com história de quatro parceiros sexuais tiveram mais risco de desenvolvê-las. Houve concordância moderada entre os resultados da citopatologia e colposcopia (Kappa = 0,69). A prevalência de HSV (96,7%), sífilis (6,4%) e HIV (3,2%) foi maior que a descrita na literatura, enquanto a prevalência de clamídia (6,4%) e gonorreia (1,6%) foi similar. O HPV foi detectado em 53,2% das mulheres, sendo 32,3% delas infectadas pelo HPV 16. No contexto das coinfecções, 38 mulheres (61,3%) tinham mais de uma IST. Conclusão: Visto que a maioria das mulheres analisadas era acometida por mais de uma IST, nossos resultados sugerem que uma triagem rotineira dessas infecções nas unidades de saúde poderia auxiliar na detecção precoce, bem como no tratamento e na prevenção. Essas medidas também impactariam no controle do câncer cervical das pacientes.

18.
Rev Col Bras Cir ; 39(1): 54-9, 2012.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-22481707

RESUMEN

OBJECTIVE: To analyze the use of immediate reconstruction techniques of the vulva after surgical resection, with fasciocutaneous flaps of the medial and/or posterior thigh. METHODS: We conducted a transversal, retrospective study to analyse the outcome of immediate surgical reconstruction with fasciocutaneous flaps in nine patients who underwent vulvectomy from May 2009 to August 2010. RESULTS: Mean age was 61 years (range 36-82). In 56% of cases, diagnosis was vulvar intraepithelial neoplasia (VIN), usual type. Radical vulvectomy was performed in 45% of patients, simple vulvectomy in 33% and wide resections in 22%. Eleven fasciocutaneous flaps were made, of which 36.3% were flap transpositions from the posterior thigh, 18.2% from the medial thigh, 18.2% were in advancement flaps, 18.2% simple advancement flaps and 9.1% flap rotation from the posterior thigh. There were no major losses of the flaps made. CONCLUSION: Thigh fasciocutaneous flaps are currently the best options for immediate reconstruction after resection of vulvar cancer due to the preservation of sensibility and tissue availability in the donor areas. The association of the Plastic Surgeon with the Gynecologist offers tranquility for patients and provides good postoperative results.


Asunto(s)
Procedimientos de Cirugía Plástica/métodos , Colgajos Quirúrgicos , Vulva/cirugía , Neoplasias de la Vulva/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Estudios Transversales , Fascia/trasplante , Femenino , Procedimientos Quirúrgicos Ginecológicos/métodos , Humanos , Persona de Mediana Edad , Estudios Retrospectivos , Trasplante de Piel , Factores de Tiempo
19.
Hered Cancer Clin Pract ; 10(1): 3, 2012 Mar 28.
Artículo en Inglés | MEDLINE | ID: mdl-22455664

RESUMEN

BACKGROUND: Germline mutations in p53 are associated with the Li-Fraumeni Syndrome which is characterized by childhood cancers, including pediatric adrenal cortical carcinomas and early onset breast cancer. The high incidence of adrenal cortical carcinomas in southern Brazil is mostly attributed to the R337H mutation in TP53. The relatively high population frequency of this mutation in southern Brazil, along with the clustering of early onset breast cancer in Li-Frameni families, suggests this mutation may also be a low-penetrance breast cancer susceptibility polymorphism. METHODS: We undertook this study to evaluate the frequency of the R337H mutation in breast cancer patients from Rio de Janeiro, Brazil. R337H mutation status was determined in 390 unselected breast cases and 324 controls identified from clinics in Rio de Janeiro, Brazil using a PCR-based assay. RESULTS: Two of the breast cancer cases (0.5%) and none of the controls carried the mutation. Both cases had an early age at diagnosis (< 40 years old) and a family history of breast and other cancers. CONCLUSIONS: These data suggest genetic screening of young onset breast cancer patients should include testing for the R337H mutation.

20.
Mem. Inst. Oswaldo Cruz ; 111(2): 120-127, Feb. 2016. tab
Artículo en Inglés | LILACS | ID: lil-772616

RESUMEN

This study investigated the rate of human papillomavirus (HPV) persistence, associated risk factors, and predictors of cytological alteration outcomes in a cohort of human immunodeficiency virus-infected pregnant women over an 18-month period. HPV was typed through L1 gene sequencing in cervical smears collected during gestation and at 12 months after delivery. Outcomes were defined as nonpersistence (clearance of the HPV in the 2nd sample), re-infection (detection of different types of HPV in the 2 samples), and type-specific HPV persistence (the same HPV type found in both samples). An unfavourable cytological outcome was considered when the second exam showed progression to squamous intraepithelial lesion or high squamous intraepithelial lesion. Ninety patients were studied. HPV DNA persistence occurred in 50% of the cases composed of type-specific persistence (30%) or re-infection (20%). A low CD4+T-cell count at entry was a risk factor for type-specific, re-infection, or HPV DNA persistence. The odds ratio (OR) was almost three times higher in the type-specific group when compared with the re-infection group (OR = 2.8; 95% confidence interval: 0.43-22.79). Our findings show that bonafide (type-specific) HPV persistence is a stronger predictor for the development of cytological abnormalities, highlighting the need for HPV typing as opposed to HPV DNA testing in the clinical setting.


Asunto(s)
Adulto , Femenino , Humanos , Embarazo , Adulto Joven , ADN Viral/clasificación , VIH , Seropositividad para VIH/virología , Papillomaviridae/aislamiento & purificación , Infecciones por Papillomavirus/diagnóstico , Complicaciones Infecciosas del Embarazo/virología , Lesiones Intraepiteliales Escamosas de Cuello Uterino/diagnóstico , Enfermedad Crónica , Coinfección , Efecto Citopatogénico Viral , ADN Viral/aislamiento & purificación , VIH , Estudios Longitudinales , Tipificación Molecular/métodos , Filogenia , Valor Predictivo de las Pruebas , Estudios Prospectivos , Papillomaviridae/clasificación , Infecciones por Papillomavirus/virología , Recurrencia , Factores de Riesgo , Infecciones del Sistema Genital/virología , Factores Socioeconómicos
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