Phytochemical profile and biological activities of Bromelia antiacantha extracts

Abstract Reports from popular medicine usually act as a basis for the development of new drugs from natural compounds with therapeutic actions for serious diseases and prevalence such as cancer. Bromelia antiacantha Bertol. is a species of the Bromeliaceae family, considered an unconventional food plant, found in the south and midwest regions of Brazil. Despite the high nutritional content and pharmacological potential of its fruits, few scientific studies report its biological actions. Thus, this study evaluates the phytochemical profile of aqueous and ethanol extracts obtained from B. antiacantha fruits, as well as their possible antioxidant, antitumor, and cytotoxic activities. The aqueous extract exhibited phenolic compounds and flavonoids, while ethanol extracts indicated the presence of flavonoids and coumarin in their composition, regardless of the region of collection. The ethanolic extract demonstrated a more promising antioxidant effect than the aqueous extract and also induced a significant inhibition in the viability of human cervical cancer cells of the SiHa strain. In addition, treatment with both extracts did not alter the viability of non-tumor cells of the immortalized human keratinocyte lineage (HaCaT). These results bring new data about extracts obtained from a native plant, edible and traditionally used in popular medicine, opening new perspectives for its possible therapeutic application.

Resumo Relatos da medicina popular costumam atuar como referencial para o desenvolvimento de novos fármacos a partir de moléculas naturais com ações terapêuticas para doenças de alta gravidade e prevalência como o câncer. Bromelia antiacantha Bertol. é uma espécie da família Bromeliaceae, considerada uma planta alimentícia não convencional (PANC), encontrada nas regiões sul e centro-oeste do Brasil. Apesar do alto teor nutritivo e potencial farmacológico de seus frutos, poucos estudos científicos relatam suas ações biológicas. Desta forma, este estudo avalia o perfil fitoquímico de extratos aquoso e etanólico obtidos de frutos de B. antiacantha, bem como a sua possível ação antioxidante, antitumoral e citotóxica. O extrato aquoso apresentou compostos fenólicos e flavonoides, enquanto os extratos etanólicos apontam a presença de flavonóides e cumarina em sua composição, independente da região de coleta. O extrato etanólico demonstrou efeito antioxidante mais promissor do que o extrato aquoso e também induziu uma inibição significativa na viabilidade de células humanas de câncer cervical da linhagem SiHa. Além disso, o tratamento com ambos extratos não alterou a viabilidade de células não tumorais da linhagem de queratinócitos humanos imortalizados (HaCaT). Estes dados trazem novas informações sobre extratos obtidos de uma espécie vegetal nativa, comestível e já utilizada tradicionalmente, mas abrindo novas perspectivas quanto a possíveis aplicações terapêuticas.

Phytochemical profile and biological activities of Bromelia antiacantha extracts / Perfil fitoquímico e atividades biológicas de extratos de Bromelia antiacantha

Reports from popular medicine usually act as a basis for the development of new drugs from natural compounds with therapeutic actions for serious diseases and prevalence such as cancer. Bromelia antiacantha Bertol. is a species of the Bromeliaceae family, considered an unconventional food plant, found in the south and midwest regions of Brazil. Despite the high nutritional content and pharmacological potential of its fruits, few scientific studies report its biological actions. Thus, this study evaluates the phytochemical profile of aqueous and ethanol extracts obtained from B. antiacantha fruits, as well as their possible antioxidant, antitumor, and cytotoxic activities. The aqueous extract exhibited phenolic compounds and flavonoids, while ethanol extracts indicated the presence of flavonoids and coumarin in their composition, regardless of the region of collection. The ethanolic extract demonstrated a more promising antioxidant effect than the aqueous extract and also induced a significant inhibition in the viability of human cervical cancer cells of the SiHa strain. In addition, treatment with both extracts did not alter the viability of non-tumor cells of the immortalized human keratinocyte lineage (HaCaT). These results bring new data about extracts obtained from a native plant, edible and traditionally used in popular medicine, opening new perspectives for its possible therapeutic application.

Relatos da medicina popular costumam atuar como referencial para o desenvolvimento de novos fármacos a partir de moléculas naturais com ações terapêuticas para doenças de alta gravidade e prevalência como o câncer. Bromelia antiacantha Bertol. é uma espécie da família Bromeliaceae, considerada uma planta alimentícia não convencional (PANC), encontrada nas regiões sul e centro-oeste do Brasil. Apesar do alto teor nutritivo e potencial farmacológico de seus frutos, poucos estudos científicos relatam suas ações biológicas. Desta forma, este estudo avalia o perfil fitoquímico de extratos aquoso e etanólico obtidos de frutos de B. antiacantha, bem como a sua possível ação antioxidante, antitumoral e citotóxica. O extrato aquoso apresentou compostos fenólicos e flavonoides, enquanto os extratos etanólicos apontam a presença de flavonóides e cumarina em sua composição, independente da região de coleta. O extrato etanólico demonstrou efeito antioxidante mais promissor do que o extrato aquoso e também induziu uma inibição significativa na viabilidade de células humanas de câncer cervical da linhagem SiHa. Além disso, o tratamento com ambos extratos não alterou a viabilidade de células não tumorais da linhagem de queratinócitos humanos imortalizados (HaCaT). Estes dados trazem novas informações sobre extratos obtidos de uma espécie vegetal nativa, comestível e já utilizada tradicionalmente, mas abrindo novas perspectivas quanto a possíveis aplicações terapêuticas.

Prevalence of high-risk human papillomavirus genotypes among apparently healthy women with normal and abnormal cervical cytology in Kaduna State, Nigeria

Background: About 99.7% of cervical dysplasia and cancer cases are caused by persistent genital high-risk human papillomavirus (hrHPV) infection. Most HPV infections are subclinical and self-limiting but may persists in about 5 to 10% of infected women, resulting in pre-cancerous lesions that can progress to invasive cancer years later. This study is aimed at detecting hrHPV among apparently healthy women of reproductive age in Kaduna State, thus providing more information for effective control of HPV and cervical cancer in Nigeria. Methodology: Cervical smears were taken from 515 randomly selected apparently healthy women across selected secondary and tertiary facilities from 3 Local Government Areas (LGAs) in each Senatorial Zone of Kaduna State, Nigeria. Liquid-based cytology (LBC) technique was used to collect cervical smears and prepare smears for cytology study, while the remaining samples were stored at -80oC for molecular studies. HPV DNA were extracted from the samples and amplified by convectional PCR using specific hrHPV (HPV 16,18,31 and 45) primer sets and a broad spectrum MY09/11 and GP5+/6+ primers for a wider range of HPV genotypes. Data were analysed using the Statistical Package for Social Sciences (SPSS) version 23.0 and relationship between prevalence of hrHPV and socio-demographic factors such as age and marital status were determined using Chisquare or Fisher Exact test with p<0.05 considered statistically significant. Results: The prevalence of total HPV and hrHPV infections in the study population was 11.8% (61/515) and 9.3% (48/515) respectively. A total of 100 HPV genotypes were detected by PCR in the 61 positive smears, with 66 hrHPV types from 48 women, and 34 other HPV types from 13 women. The frequency of hrHPV genotypes detected was HPV 31 (5.8%, n=30), HPV 45 (4.1%, n=21), HPV 16 (1.7%, n=9), and HPV 18 (1.2%, n=6), with other HPV genotypes (6.6%, n=34). The frequency of cervical dysplasia was 6.4% (33/515), which was significantly associated with all HPV genotypes except HPV 16. Single HPV infection was seen in 31 (51.8%) women while multiple infections were seen in 30 (49.2%), with double infection in 21 (34.4%) and triple infections in 9 (14.7%). Conclusion: The prevalence of hrHPV infection was high among women in Kaduna State, Nigeria. DNA-based screening for hrHPV genotypes and production of new vaccine that will protect against the predominant hrHPV genotypes are thus recommended for the prevention of cervical cancer in Nigeria, Africa and beyond.

Análise do perfil epidemiológico dos exames citopatológico do colo do útero em Altamira no período de 2014 a 2020: dados a partir do SISCAN / Analysis of the epidemiological profile of cervical cytopathological exams in Altamira in the period from 2014 to 2020: data from SISCAN / Análisis del perfil epidemiológico de los exámenes citopatológicos de cérvix en Altamira en el periodo de 2014 a 2020: datos del SISCAN

OBJETIVO: Este trabalho aborda sobre características referente aos exames citopatológicos do colo do útero em Altamira, coletado no Sistema de Informação do Câncer, dentro do período de 2014 a 2020. Observou-se também a qualidade da interpretação dos principais resultados encontrados, sobre a técnica de coleta e qualidade de exames. O objetivo é analisar o perfil epidemiológico dos exames citopatológicos do colo do útero do município. MÉTODO: A metodologia realizada foi estudo quantitativo, de corte transversal, epidemiológico, descritiva e analítico. RESULTADOS: Verificou- se um crescimento anual na taxa de cobertura do exame do preventivo no período de 2014 a 2019, que está ligado à implementação do Plano de Desenvolvimento Regional Sustentável do Xingu, e que esse crescimento mostra uma diferença estatística significativa entre a taxa de cobertura de Altamira, Pará, Brasil. Observou-se presença de falhas no preenchimento da ficha de notificação é referente ao campo da escolaridade das pacientes que não apresentam registro. Quanto a faixa etária mais frequente que realizam o exame do preventivo está entre 25 a 34 anos e as lesões intraepiteliais do colo uterino mais frequentes são: a de baixo grau que corresponde à população jovem (<34 anos) e de alto grau entre 25 a 44 anos.

OBJECTIVE: This paper deals with characteristics related to cytopathological examinations of the cervix in Altamira, collected in the Cancer Information System, within the period from 2014 to 2020. It was also observed the quality of interpretation of the main results found, on the technique collection and quality of exams. The objective is to analyze the epidemiological profile of cytopathological tests of the cervix in the city. METHOD: The methodology used was a quantitative, cross- sectional, epidemiological study, descriptive and analytical approach. RESULTS: As a result, there was an annual growth in the coverage rate of the preventive exam in the period from 2014 to 2019, which is linked to the implementation of the Xingu Sustainable Regional Development Plan, and that this growth shows a significant statistical difference between the coverage rate of Altamira, Pará, Brazil. It was observed the presence of failures in completing the notification form referring to the field of education of patients who do not have a record. As for the most frequent age group that undergoes the preventive examination, it is between 25 and 34 years old and the most frequent intraepithelial lesions of the uterine cervix are: low-grade, which corresponds to the young population (<34 years) and high-grade, between 25 and 34 years old. 44 years.

OBJETIVO: En este trabajo se abordan las características relacionadas con los exámenes citopatológicos de cérvix en Altamira, recogidos en el Sistema de Información del Cáncer, en el periodo comprendido entre 2014 y 2020. También se observó la calidad de interpretación de los principales resultados encontrados, sobre la técnica de recolección y calidad de los exámenes. El objetivo es analizar el perfil epidemiológico de los exámenes citopatológicos de cuello uterino en la ciudad. MÉTODO: La metodología utilizada fue un estudio cuantitativo, transversal, epidemiológico, de abordaje descriptivo y analítico. RESULTADOS: Como resultado, se observó un crecimiento anual de la tasa de cobertura del examen preventivo en el período de 2014 a 2019, que está vinculado a la implementación del Plan de Desarrollo Regional Sostenible Xingu, y que este crecimiento muestra una diferencia estadística significativa entre la tasa de cobertura de Altamira, Pará, Brasil. Se observó la presencia de fallas en el llenado del formulario de notificación referente al campo de la educación de los pacientes que no tienen un registro. En cuanto al grupo de edad más frecuente que se somete al examen preventivo, es entre 25 y 34 años y las lesiones intraepiteliales del cuello uterino más frecuentes son: de bajo grado, que corresponde a la población joven (<34 años) y de alto grado, entre 25 y 44 años.

Combined Oral Contraceptive Use and the Risk of Cervical Cancer: Literature Review / Uso de anticoncepcional oral combinado e o risco de câncer cervical: Revisão da literatura

Abstract Cervical cancer (CC) is caused by persistent infection of human papillomavirus of high oncogenic risk (hr-HPV); however, several cofactors are important in its carcinogenesis, such as smoking, multiparity, and prolonged use of oral hormonal contraceptives (COCs). Worldwide, 16% of women use COCs, whereas in Brazil this rate is of ~ 30%. The safety and adverse effects of COCs are widely discussed in the literature, including the increase in carcinogenic risk. Due to the existence of several drugs, combinations, and dosages of COCs, it is hard to have uniform information in epidemiological studies. Our objective was to perform a narrative review on the role of COCs use in the carcinogenesis of cervical cancer. Several populational studies have suggested an increase in the incidence of cervical cancer for those who have used COCs for > 5 years, but other available studies reach controversial and contradictory results regarding the action of COCs in the development of CC.

Resumo O câncer cervical (CC) é causado pela infecção persistente pelo papilomavírus humano de alto risco oncogênico (hr-HPV); entretanto, vários cofatores são importantes na sua carcinogênese, como tabagismo, multiparidade e uso prolongado de contraceptivos hormonais orais (COCs). No mundo, 16% das mulheres usam AOCs, enquanto no Brasil essa taxa é de ~ 30%. A segurança e os efeitos adversos dos COCs são amplamente discutidos na literatura, incluindo o aumento do risco carcinogênico. Devido à existência de várias drogas, combinações e dosagens de COCs, é difícil ter informações uniformes em estudos epidemiológicos. Nosso objetivo foi realizar uma revisão narrativa sobre o papel do uso de COCs na carcinogênese do câncer cervical. Vários estudos populacionais têm sugerido aumento da incidência de câncer de colo uterino para aquelas que usam COCs há mais de 5 anos, mas outros estudos disponíveis chegam a resultados controversos e contraditórios quanto à ação dos COCs no desenvolvimento do CCU.

Estratégias utilizadas por enfermeiros da atenção primária na prevenção do câncer de colo do útero: revisão integrativa / Strategies used by primary care nurses in the prevention of cervical cancer: integrative review

Objetivo: identificar, na literatura científica, as estratégias utilizadas por enfermeiros da Atenção Primária para a prevenção do câncer de colo do útero. Métodos: revisão integrativa nas bases de dados EMBASE, LILACS (BVS), SCOPUS e Web of Science, entre março e abril de 2023. Após a busca, seguiu-se com leitura na íntegra dos artigos selecionados e extração dos dados para análise. A amostra final foi constituída por 5 estudos. Resultados: as principais estratégias utilizadas foram intervenções educativas, com predominância de palestras e posterior convite ou coleta de material para a realização do exame preventivo. Também foram utilizadas rodas de conversa (círculo de cultura), orientações por contato telefônico e oferta de ficha clínica auto preenchível na consulta de enfermagem. Conclusões: os estudos possibilitaram identificar estratégias positivas na prevenção do câncer de colo do útero, podendo direcionar enfermeiros a investir cada vez mais em metodologias voltadas a uma maior autonomia das mulheres

Objective: to identify, in the scientific literature, the strategies used by primary care nurses to prevent cervical cancer. Methods: An integrative review of the EMBASE, LILACS (BVS), SCOPUS, and Web of Science databases between March and April 2023. After the search, the selected articles were read in full, and the data were extracted for analysis. The final sample consisted of 5 studies. Results: the main strategies used were educational interventions, with a predominance of lectures and subsequent invitations or collection of material to carry out the preventive exam. Conversation circles (culture circles), telephone guidance, and the provision of a self-completed clinical form during the nursing consultation were also used. Conclusions: the studies made it possible to identify positive strategies for preventing cervical cancer, which could direct nurses to increasingly invest in methodologies aimed at increasing women's autonomy

¿Está la virtud en el punto medio? La incertidumbre del CIN2 y el papel del VPH / Is virtue at the midpoint? The uncertainty of CIN2 and the role of HPV

Objetivo: La biopsia guiada por colposcopia (BGC) marca el manejo de la neoplasia intraepitelial cervical. El objetivo de este estudio fue evaluar la concordancia de los resultados entre la BGC y la escisión amplia de la zona de transformación (LLETZ, large loop excision of the transformation zone), y la utilidad del genotipado del virus del papiloma humano (VPH) para seleccionar a las pacientes con riesgo de lesión intraepitelial escamosa de alto grado/neoplasia intraepitelial cervical 3 (HSIL/CIN3). Método: Se compararon los resultados de la BGC y de la LLETZ, siendo esta última el método de referencia. Se evaluó la relación del genotipo del VPH con el diagnóstico final de HSIL/CIN3. Resultados: La precisión de la biopsia comparada con LLETZ fue del 61,4%. La tasa de concordancia fue del 64,4% para CIN1, del 31,4% para CIN2 y del 77,4% para CIN3. La tasa global de sobrediagnóstico fue del 18,68% y la de subdiagnóstico del 19,89%. En mujeres menores de 30 años, la concordancia fue del 62,79% (CIN1 65%, CIN2 39,58% y CIN3 73,08%), la tasa de sobrediagnóstico del 22,67% y la tasa de subdiagnóstico del 15,11%. La infección por VPH16 tuvo una odds ratio de 3,86 para el diagnóstico final de HSIL/CIN3+. Conclusiones: El diagnóstico de CIN2 por BGC parece insuficiente para seleccionar a las pacientes para tratamiento escisional, principalmente en mujeres jóvenes. El hallazgo de VPH16 es un factor de riesgo de HSIL/CIN3+ independientemente del resultado de la biopsia.

Objective: Colposcopy-guided biopsy (CGB) is a basic tool for the management of cervical intraepithelial neoplasia. The aim of this study is to evaluate the concordance of results between CGB and large loop excision of the transformation zone (LLETZ), and the usefulness of human papillomavirus (HPV) genotyping to select patients at risk of H-SIL/CIN3. Method: The results of colposcopy-guided biopsy and LLETZ were compared, with LLETZ being the gold standard. The relationship of HPV genotype to the final diagnosis of CIN3 was assessed. Results: The accuracy of CGB compared to LLETZ was 61.4%. The concordance rate was 64.4% for CIN1, 31.4% for CIN2 and 77.4% for CIN3. The overall overdiagnosis rate was 18.68% and underdiagnosis rate was 19.89%. In women under 30 years of age the concordance rate was 62.79% (CIN1 65%, CIN2 39.58% and CIN3 73.08%), and the rate of overdiagnosis and underdiagnosis was 22.67% and 15.11%, respectively. HPV16 infection had an odds ratio of 3.86 for the final diagnosis of CIN3+ and the result was significant regardless of the biopsy result. Conclusions: The CGB result as CIN2 is inaccurate and seems insufficient to select patients for excisional treatment, mainly in young women. HPV16 infection is a risk factor for CIN3+ regardless of the colposcopy-guided biopsy result.

Percepção de mulheres residentes em Barreiras (BA) quanto ao rastreamento do câncer de colo do útero / Perception of women living in Barreiras regarding cervical cancer screening / Percepción de las mujeres residentes en Barreiras, Bahía, sobre el cribado de cáncer del cuello uterino

O rastreamento do câncer de colo do útero (CCU) é uma das estratégias para diminuição da incidência e morbimortalidade dessa neoplasia. Portanto, é necessário estudar os fatores que estão associados à sua realização. Este estudo visa analisar a adesão ao rastreamento do CCU na cidade de Barreiras (BA), com vistas às ações de educação em saúde e ao papel dos profissionais de saúde nessa prevenção. A abordagem da pesquisa foi descritiva qualitativa, com utilização de questionário. Os dados coletados foram organizados pelo software Excel 2016. Na análise inferencial, foi utilizado o software GraphPad Prism 5.0 e o teste de Spearman. A maioria da amostra (37%) tem entre 30 e 40 anos e possui ensino médio completo (65%). Ademais, 71% consideram realizar regularmente o preventivo. A maior parcela iniciou o Papanicolau antes dos 20 anos, principalmente devido ao aconselhamento do profissional de saúde (58%). Constatou-se correlação positiva entre frequência e presença de educação em saúde na Unidade Básica de Saúde (r = 0,2982; p = 0,0122); e entre realização do exame regular e incentivo pelo profissional de saúde (r = 0,4284; p = 0,0015). Conclui-se que a maioria das questionadas possuía conhecimento prévio a respeito do preventivo, sendo importante ressaltar a educação em saúde e o incentivo do profissional como fundamentais para essa adesão.

Since cervical cancer (CC) screening is a major strategy used to decrease the morbidity and mortality rate of this neoplasm, research on its associated factors is necessary. This study analyzes adherence to CC screening in the municipality of Barreiras, Bahia, focusing on health education actions and the role of health professionals in CC prevention. A qualitative and descriptive research was conducted by means of a questionnaire. Collected data were organized using the Excel 2016 software. Inferential analysis was performed using the GraphPad Prism 5.0 software and Spearman's test. Most research participants (37%) are between 30 and 40 years, have completed high school (65%), and considered doing pap smear regularly (71%). Most (58%) started pap smear before 20, mainly due to advice from health professionals. Results showed a positive correlation between frequency and health education actions offered at the Basic Health Unity (r = 0.2982; p = 0.0122), and between regular examination and incentive by a health professional (r = 0.4284; p = 0.0015). In conclusion, most of the respondents have previous knowledge about preventive screening, highlighting the prominent role played by health education and professional incentive for this adherence.

El cribado del cáncer de cuello uterino (CCU) es una de las estrategias para reducir la incidencia y la morbimortalidad por esta neoplasia. En este sentido, es necesario estudiar los factores que están asociados a su prevención. Este estudio tuvo por objetivo analizar la adherencia a la prevención de CCU en la ciudad de Barreiras (Bahía, Brasil), teniendo en cuenta las acciones de educación en salud y la función de los profesionales de la salud en esa prevención. La investigación fue descriptiva y cualitativa, utilizando un cuestionario. Los datos recolectados se organizaron mediante el software Excel 2016. En el análisis de inferencia, se utilizó el software GraphPad Prism 5.0 y la prueba de Spearman. La mayoría de la muestra (37%) tiene edad entre 30 y 40 años, y la secundaria completa (65%). Además, el 71% informaron realizar el Papanicolaou con regularidad. Gran parte de las participantes dijeron que empezaron a realizar el PAP antes de cumplir los 20 años, sobre todo, por recomendaciones de un profesional de la salud (58%). Se constató correlación positiva entre frecuencia y presencia de educación en salud en la Unidad Básica de Salud (UBS) (r = 0,2982; p = 0,0122); y entre la realización de estudios regulares y el estímulo a hacerlo por parte del profesional de la salud (r = 0,4284; p = 0,0015). Se concluye que la mayoría de las encuestadas tiene conocimientos previos acerca de cuidados preventivos, lo que demuestra que la educación en salud y el estímulo de los profesionales son importantes para la adherencia al cribado del CCU.

Correlation between Colposcopic Findings and Histopathological Results from Colposcopy Directed Biopsy in VIA(+VE) Cases

Background: Cervical cancer is a major global health problem, with a high burden in developing countries. Early detection and management of precancerous conditions, such as cervical intraepithelial neoplasia (CIN), can help to prevent the development of cervical cancer. Colposcopy, which involves the visualization of the cervix through optical instruments, is considered the gold standard for the diagnosis of cervical abnormalities. The aim of the study was to assess the correlation between colposcopy findings and histopathological results in cases where visual inspection of the cervix with acetic acid (VIA) was positive. Material & Methods: This cross-sectional study was conducted at the Department of Gynecology, Institute of Child and Mother Health, Matuail, Dhaka, Bangladesh. The study duration was 1 year, from November 2017 to October 2018. Participants were recruited from the hospital’s gynecology outpatient department and included 95 women who had a positive VIA test. A Purposive consecutive sampling method was followed for the selection of the participants. Results: The study included 95 patients in Bangladesh who had a positive VIA test. The age distribution of the patients ranged from 25 to 60 years, with a mean age of 35.89±8.88 years. The majority of patients (85.3%) had acetowhite areas, followed by 11 (11.5%) punctuation and 3 (3.2%) mixed (acetowhite area and mosaicism). Histopathological findings revealed that one-third (33.6%) of patients had chronic cervicitis, with 36 (378.8%) having moderate dysplasia, 16 (16.8%) having mild dysplasia, 7 (7.5%) having invasive carcinoma, and 4 (4.2%) having chronic cervicitis with sq. metaplasia. Among the cases, the comparison between colposcopy-directed biopsy results and Colposcopy findings. It was observed that more than one-fourth of 24(29.7%) patients were chronic cervicitis in pure acetowhite area, 8(72.7%) in punctuation, and all patients were mild dysplasia in mixed (acetowhite area and mosaicism). Among 81 patients 53 patients presented with pre-cancerous lesions. The difference was statically significant (p<0.05) in the study patients. Conclusion: Colposcopy, which involves the visualization of the cervix through optical instruments, was found to be an effective tool for the diagnosis of cervical abnormalities in these cases. These findings highlight the importance of colposcopy as a diagnostic tool for cervical abnormalities, particularly in resource-limited settings where access to other screening methods may be limited.

Exame físico em ginecologia / Physical examination in gynecology

O exame físico na prática ginecológica diuturna é o sustentáculo de uma perspectiva diagnóstica com vistas a uma abordagem individualizada, oportuna e humanizada da paciente. Lança mão de técnica semiótica clássica, inicialmente, após avaliação de sinais vitais, minuciosa inspeção ectoscópica, seguida de exame físico especial. E deverá ser realizado em ambiente adequadíssimo, sem nenhuma improvisação e ou adaptações não compatíveis, com a importância e a segurança garantidas por um exame físico de boa qualidade. O exame físico de mamas tem como objetivo primordial a identificação de nódulos mamários e, eventualmente, de tumores localmente avançados; e relativa tranquilidade é assegurada às pacientes quando ele é considerado normal. O exame físico vulvar permite a identificação de prolapso de órgãos pélvicos, neoplasia intraepitelial e/ou invasiva vulvar e distúrbios de desenvolvimento sexual, além de oferecer subsídios para a propedêutica da vulvodínea, sendo, principalmente, uma oportunidade para o diagnóstico em dermatologia vulvar, mesmo a vulva correspondendo a apenas 1% da pele feminina. O exame especular, um clássico da ginecologia, é indispensável para a triagem do câncer de colo uterino. Por fim, o toque genital, a despeito de sua subjetividade, permite a avaliação dos órgãos genitais internos.

Physical examination in daytime gynecological practice is the mainstay of a diagnostic perspective with a view to an individualized, timely and humanized approach to the patient; resorting to the classical semiotic technique, initially, after assessing vital signs, a thorough ectoscopic inspection, followed by a special physical examination; which should be carried out in a very suitable environment, without any improvisation or adaptations that are not compatible with the importance and safety guaranteed by a good quality physical examination. The primary objective of the physical examination of the breasts is to identify breast nodules and possibly locally advanced tumors; in addition to relative tranquility, assured to patients, when the respective exam is considered normal. Vulvar physical examination allows the identification of pelvic organ prolapse; vulvar intraepithelial and/or invasive neoplasia; sexual development disorders; in addition to offering subsidies for the propaedeutics of vulvodynia; and, above all, it is an opportunity for diagnosis in vulvar dermatology, even though the vulva accounts for only 1% of female skin. Specular examination, a classic in gynecology, is essential for screening for cervical cancer. Finally, the genital touch which, despite its subjectivity, allows the evaluation of the internal genital organs.

HPV vaccination programs in LMIC: is it time to optimize schedules and recommendations?

Abstract Objectives: Prophylactic HPV vaccines are a fundamental tool to reduce infections and tumors caused by the most prevalent types of these viruses, as this review points out. Several countries have adopted immunization programs that recommend vaccination against HPV for girls and adolescents between 9 and 14 years of age and, in some of them, also for boys. The programs also contemplate the immunization of adults, particularly in the case of individuals with different immunodeficiencies. Sources of data: The available vaccines are recommended for the prevention of tumors of the uterine cervix, vulva, vagina, penis, and anal canal. Moreover, two of the vaccines prevent the occurrence of genital warts, having been recently indicated for the prevention of oropharyngeal cancer. Data synthesis: Based on the evidence that antibody responses in girls were non-inferior after two doses when compared to three doses, several countries have decided to reduce the vaccination schedule for girls and boys up to 14 years of age from three to two doses, with an interval of six months between them. Recently, knowledge has been accumulating about the immunogenicity, duration of protection, and efficacy of a single-dose HPV vaccine regimen in girls and young women. Conclusion: Single-dose HPV vaccination could substantially reduce the incidence of pre-cancer and cervical cancer attributable to HPV, with reduced costs for vaccine delivery and simplified implementation, allowing more countries to introduce HPV vaccination or increase the adherence of the target population.

Atitudes e crenças de médicos ginecologistas- -obstetras e de pacientes do Hospital Universitário de Brasília sobre o rastreamento cervical e o exame pélvico / Attitudes and beliefs of obstetrician-gynecologists and patients at the University Hospital of Brasília about cervical screening and pelvic examination

Objetivo: Avaliar as atitudes e crenças de pacientes e médicos ginecologistas-obstetras sobre o rastreamento cervical e o exame pélvico no Hospital Universitário de Brasília (HUB). Métodos: Foram realizadas entrevistas com pacientes que aguardavam por uma consulta previamente agendada no ambulatório de ginecologia e com médicos ginecologistas-obstetras que atuavam no HUB. Cada grupo respondeu a um questionário que enfocava a realização do rastreamento cervical e do exame pélvico (EP). Resultados: No total, 387 pacientes responderam ao questionário. Dessas, apenas 4,13% sabiam que, de acordo com as diretrizes brasileiras, o rastreamento cervical deveria ser iniciado aos 25 anos de idade, 5,17% sabiam que ele deveria ser encerrado aos 64 anos e 97,93% esperavam um intervalo menor do que o trienal recomendado. Após serem informadas sobre as diretrizes, 66,93% acreditavam que o início aos 25 anos é tardio, 61,5%, que o encerramento aos 64 anos é precoce, 88,37%, que o intervalo trienal é muito longo e 94,06% ficaram com receio de que problemas de saúde pudessem aparecer nesse intervalo. Dos 44 médicos que responderam ao questionário, embora a maioria concordasse com as diretrizes, somente 31,82%, 38,64% e 34,1% as seguia com relação à frequência, à idade de início e à idade de encerramento, respectivamente. Quanto ao EP, aproximadamente metade dos participantes de cada grupo considerava que o exame deveria ser realizado nas consultas regulares com o ginecologista. Conclusão: Foi observada uma discrepância entre as expectativas das pacientes e as diretrizes para o rastreamento de câncer cervical. A maior parte das pacientes não as conhecia e, quando informadas, não concordava com elas. Quanto aos médicos ginecologistas- obstetras, a maioria não as seguia, apesar de conhecê-las. Quanto ao EP, grande parte dos médicos e pacientes considerava-o importante e acreditava que ele deveria ser realizado de forma rotineira nas consultas ginecológicas.

Objective: Evaluate the attitudes and beliefs of patients and obstetrician-gynecologists about cervical screening and pelvic examination in the University Hospital of Brasília (HUB). Methods: Face-to-face interviews with patients waiting for a previously scheduled consultation at the gynecology outpatient clinics and attending obstetrician-gynecologists at the HUB. Each group answered a questionnaire addressing cervical screening and pelvic examination (PE). Results: 387 patients answered the questionnaire. Of these, only 4.13% were aware that, according to Brazilian guidelines, cervical screening should begin at age 25, 5.17% that it should stop at age 64 and 97.93% expected a shorter interval than the recommended triennial. After being informed of the guidelines, 66.93% believed that starting at age 25 is late, 61.5% that stopping at 64 is early, 88.37% that the triennial interval is too long, and 94.06% would be afraid that health problems could appear during the interval. Of the 44 participating physicians, although most agreed with the guidelines, only 31.82%, 38.64% and 34.1% followed them regarding frequency, starting and stopping age, respectively. As for EP, approximately half of the participants in each group believed that it should be performed in regular consultations with the gynecologist. Conclusion: There was a discrepancy between patients' expectations and cervical screening guidelines. Most patients didn't know and, when informed, didn't agree with them. As for Ob-Gyn physicians, most did not follow these guidelines, despite knowing them. As for pelvic exam, most physicians and patients considered it important and believed it should be routinely performed during gynecological consultations.

Screening practices for breast and cervical cancer and associated factors, among rural women in Vellore, Tamil Nadu

Background: Population-based screening coverage for breast and cervical cancer screening in the community is inadequately reported in India. This study assessed screening rates, awareness, and other factors affecting screening, among rural women aged 25� years in Vellore, Tamil Nadu. Methods: Women aged 25� years, from five randomly selected villages of a rural block were included in this cross-sectional study in Vellore, Tamil Nadu. Households were selected by systematic random sampling, followed by simple random sampling of eligible women in the house. A semi-structured questionnaire was used to assess screening practices, awareness, and other factors related to cervical and breast cancer. Results: Although 43.8% and 57.9% were aware of the availability of screening for cervical and breast cancer respectively, screening rates were only 23.4% (95% confidence interval [CI]: 18.4-28.4%) and 16.2% (95% CI: 11.9-20.5%), respectively. Adequate knowledge (score of ?50%) on breast cancer was only 5.9%, with 27.2% for cervical cancer. Only 16.6% of women had ever attended any health education program on cancer. Exposure to health education (breast screening odds ratio [OR]: 6.89, 95% CI: 3.34-14.21; cervical screening OR: 6.92, 95% CI: 3.42-14.00); and adequate knowledge (breast OR: 4.69, 95% CI: 1.55-14.22; cervix OR: 3.01, 95% CI: 1.59-5.68) were independently associated with cancer screening. Conclusion: Awareness and screening rates for breast and cervical cancer are low among rural women in Tamil Nadu, a south Indian state with comparatively good health indices, with health education being an important factor associated with screening practices.

Conexões históricas entre as políticas de rastreamento do câncer de colo do útero e a educação profissional em citopatologia no Brasil / Historical connections between cervical cancer screening policies and professional education in cytopathology in Brazil / Conexiones históricas entre las políticas de rastreo del cáncer de cuello uterino y la formación profesional en citopatología en Brasil

Resumo Os técnicos em citopatologia são fundamentais para o rastreamento do câncer de colo do útero, porém existem lacunas na sua formação. Nesta revisão de literatura, com abordagem qualitativa, realizada na Biblioteca Virtual em Saúde e na SciELO, sem recorte temporal, descrevemos o histórico das políticas públicas de combate ao câncer de colo de útero, relacionando-o à história da educação profissional técnica em citopatologia, analisando as conexões entre tais sequências de eventos. Numa perspectiva histórica, a educação profissional em anatomia patológica se deu principalmente pela formação em serviço, porém o campo da formação técnica em citopatologia destoa desse modelo. Esforços diversos para estruturar os currículos na área e reduzir as discrepâncias nessa formação foram realizados. Contudo, disputas entre interesses político-econômicos, marcando a divisão técnica do trabalho no país, somadas a embates corporativos no trabalho em citopatologia, e o descompasso entre ações de educação e de rastreamento impediram a materialização efetiva desses esforços. A demanda pela incorporação de novas tecnologias acentua ainda mais a fragilidade na formação da categoria. Somente com ações governamentais concretas de formação e de regulamentação profissional será possível transformar esse cenário, favorecendo o desenvolvimento e a ampliação das campanhas de detecção precoce do câncer.

Abstract Cytopathology technicians are fundamental for cervical cancer screening, but there are gaps in their training. In this literature review, with a qualitative approach, carried out in the Virtual Health Library and in SciELO, without temporal clipping, we describe the history of public policies to combat cervical cancer, relating it to the history of technical professional education in cytopathology, analyzing the connections between such sequences of events. In a historical perspective, professional education in pathological anatomy was mainly through in-service training, but the field of technical training in cytopathology differs from this model. Various efforts have been made to structure curricula in the area and reduce discrepancies in this training. However, disputes between political and economic interests, marking the technical division of labor in the country, added to corporate clashes in the work on cytopathology, and the mismatch between education and screening actions prevented the effective materialization of these efforts. The demand for the incorporation of new technologies further accentuates the fragility in the formation of the category. Only with concrete government actions of training and professional regulation will it be possible to transform this scenario, favoring the development and expansion of campaigns for early detection of cancer in Brazil.

Resumen Los técnicos en citopatología son fundamentales para el rastreo del cáncer de cuello uterino, pero existen lagunas en su formación. En esta revisión bibliográfica, con abordaje cualitativo, realizada en la Biblioteca Virtual en Salud y en SciELO, sin marco temporal, se describe la historia de las políticas públicas de combate al cáncer de cuello uterino, relacionándola con la historia de la formación técnico-profesional en citopatología, analizando las conexiones entre tales secuencias de eventos. Desde una perspectiva histórica, la formación profesional en anatomía patológica se basó principalmente en la formación en servicio, pero el campo de la formación técnica en citopatología difiere de este modelo. Se han hecho varios esfuerzos para estructurar los planes de estudio en el área y reducir las discrepancias en esta formación. Sin embargo, las disputas entre intereses políticos y económicos, que marcan la división técnica del trabajo en el país, sumadas a los enfrentamientos empresariales en el trabajo de citopatología, y la discrepancia entre las acciones de educación y de rastreo impidieron la materialización efectiva de estos esfuerzos. La demanda por la incorporación de nuevas tecnologías acentúa aún más la fragilidad en la formación de la categoría. Solo con acciones gubernamentales concretas de capacitación y regulación profesional será posible transformar este escenario, favoreciendo el desarrollo y la expansión de las campañas de detección temprana del cáncer en Brasil.

Concordancia de los hallazgos citológicos, colposcópicos e histológicos en lesiones premalignas del cuello uterino / Concordance in cytological, colposcopic and histological findings in premalignant lesions of the cervix

Resumen OBJETIVO: Determinar la concordancia de los hallazgos citológicos, colposcópicos e histopatológicos en lesiones premalignas del cuello uterino. MATERIALES Y MÉTODOS: Estudio transversal, retrospectivo y comparativo, efectuado en la Clínica de Displasias del Hospital General Regional 1 del estado de Querétaro, México, del 1 de enero a diciembre del 2020, con base en la información de los expedientes de mujeres con reporte citológico, colposcópico e histopatológico (biopsia) de lesión intraepitelial de bajo y alto grado. El plan de análisis estadístico incluyó intervalos de confianza para promedios y porcentajes. Se utilizó el Índice de Kappa ponderado para conocer el nivel de concordancia. RESULTADOS: Se analizaron 290 expedientes. La edad promedio de las pacientes fue 36 años, el índice de kappa ponderado fue k = 0.41 (IC95%: 0.33-0.53) para la citología y la colposcopia con un valor moderado (regular). Para la citología y la biopsia fue de k= 0.33 (IC95%: 0.22-0.49) con un valor escaso (medio). En cuanto a la colposcopia y la biopsia fue de k = 0.61 (IC95%: 0.49-0.72) con un valor de buena (sustancial) concordancia. CONCLUSIÓN: Entre la citología y la colposcopia el coeficiente de concordancia fue moderado, para la citología y la biopsia fue escaso, mientras que para la colposcopia y la biopsia fue un sustancial.

Abstract OBJECTIVE: To determine the concordance in cytologic, colposcopic and histopathologic findings in premalignant lesions of the uterine cervix. MATERIALS AND METHODS: Cross-sectional, retrospective and comparative study, carried out in the dysplasia clinic of the Hospital General Regional 1 of the state of Querétaro, Mexico, from January 1 to December 2020, based on information from the records of women with cytology, colposcopy and histopathology (biopsy) report with low- and high-grade intraepithelial lesion. The statistical analysis plan included confidence intervals for averages and percentages. The weighted Kappa Index was used to determine the level of concordance. RESULTS: Two hundred and ninety records were analyzed. The mean age of the patients was 36 years, the weighted kappa index was k = 0.41 (95%CI: 0.33-0.53) for cytology and colposcopy with a moderate value (fair). For cytology and biopsy, it was k= 0.33 (95%CI: 0.22-0.49) with a poor value (medium). For colposcopy and biopsy, it was k = 0.61 (95%CI: 0.49-0.72) with a value of good (substantial) agreement. CONCLUSION: Between cytology and colposcopy the concordance coefficient was moderate, for cytology and biopsy it was poor, while for colposcopy and biopsy it was a substantial.

Determining the relationship between serum acute phase reactants and cervical premalignant lesions: a cohort study

Abstract BACKGROUND: Acute phase reactants play a role in the progression and prognosis of many malignant and premalignant tumors. This study investigated the diagnostic value of certain reactants as markers for cervical premalignant lesions. OBJECTIVES: Despite advanced screening and vaccination programs, cervical cancer remains a serious health problem worldwide. We aimed to determine the possible relationship between premalignant cervical disease and serum acute phase reactant levels. DESIGN AND SETTING: This study included 124 volunteers who underwent cervical cancer screening. We divided the patients into three groups according to cervical cytology and histopathological findings as follows: no cervical lesion, low-grade neoplasia, or high-grade neoplasia. METHODS: We included women aged 25-65 years with benign smear or colposcopy results, low- and high-grade squamous intraepithelial lesions. The benign group was based only on cytology findings, whereas the other groups were based on histopathology findings. Demographic data and serum albumin, fibrinogen, ferritin, and procalcitonin levels were evaluated in the three groups. RESULTS: We found significant differences among the three groups in terms of age, albumin level, albumin/fibrinogen ratio, and procalcitonin level. The regression analysis revealed lower serum albumin levels in the low- and high-grade squamous intraepithelial lesion groups compared with the benign group. CONCLUSION: This is the first study to evaluate the importance of serum inflammatory markers in cervical intraepithelial lesions. Our results indicate that serum albumin level, albumin/fibrinogen ratio, procalcitonin level, and neutrophil values differ among cervical intraepithelial lesions.

Application to help physiotherapists in the evaluation of pelvic dysfunctions after cervical cancer / Aplicativo para auxiliar fisioterapeutas na avaliação de disfunções pélvicas após câncer de colo do útero

Abstract Introduction Cervical cancer is caused by a persistent infection with some types of human papillomavirus (HPV), and its treatment entails chemotherapy, radiotherapy and surgery. This may cause different kinds of dysfunction in the pelvic floor. Hence, physiotherapy plays an important role in the evaluation and treatment of urogynecological dysfunctions occasioned by the oncological treatment. Objective To develop a digital technology in application format to help physiotherapists in the assessment of pelvic dysfunctions after cervical cancer. Methods A digital technology in application format was developed after approval from the Ethics in Research Committee of the Tropical Medical Center. The instrument was developed by a physiotherapist with expertise and experience in the area. The researchers held meetings to finalize the creation of the checklist, and the application was programmed using the Android Studio Environment. In the end, the application was evaluated by two physiotherapist experts in the field. Results The application created displays five sections addressing the symptoms of urinary dysfunction, sexual function, anal function, pain and alterations such as: lymphedema, vaginal stenosis and vaginal fibrosis. Conclusion The use of the application may help physiotherapists in the assessment of pelvic dysfunctions after cervical cancer.

Resumo Introdução O câncer de colo do útero é causado pela infecção persistente por alguns tipos de papilomavírus humano e o seu tratamento envolve quimioterapia, radioterapia e cirurgia, podendo ocasio-nar diferentes disfunções no assoalho pélvico. Desta forma, a fisioterapia tem papel importante na avaliação e tratamento das disfunções pélvicas decorrentes do tratamento oncológico. Objetivo Desenvolver uma tecnologia digital em formato de aplicativo para auxiliar fisioterapeutas na avaliação de disfunções pélvicas após câncer de colo do útero. Métodos Trata-se do desenvolvimento de uma tecnologia digital em formato de aplicativo, que foi realizado após aprovação do Comitê de Ética em Pesquisa do Núcleo de Medicina Tropical. O instrumento foi elaborado por fisioterapeutas com expertise e experiência na área. Os pesquisadores realizaram reuniões para finalizar o processo de criação do checklist, e o aplicativo foi programado em ambiente Androide Studio. Ao final, o aplicativo foi avaliado por duas fisioterapeutas especialistas na área. Resultados O aplicativo criado apresenta cinco capítulos abordando sintomas de disfunção urinária, função sexual, função anal, dor e alterações como linfedema, estenose vaginal e fibrose vaginal. Conclusão A utilização do aplicativo poderá auxiliar os profissionais fisioterapeutas na avaliação de disfunções pélvicas após câncer de colo do útero.

Embryonal rhabdomyosarcoma of the uterine cervix in an adult female

ABSTRACT Embryonal rhabdomyosarcoma (RMS) of the female genital tract is an uncommon malignancy, presenting mainly in the pediatric and adolescent populations, primarily affecting the first two decades of life. This malignancy presentation in adulthood is rare and is seldom seen. The incidence of this tumor affecting adult females is approximately 0.4 - 1%, with the common site being the vagina. This tumor infrequently involves the cervix. RMS has a poor survival rate and once diagnosed, it requires aggressive management by radical surgery accompanied by chemoradiation. We present a case of an anaplastic variant of embryonal RMS of the uterine cervix presenting as a cervical polyp in a 36-year-old female who complained of dyspareunia and post-coital bleeding.

HPV 18 variants in women with cervical cancer in Northeast Brazil

Abstract Background Human Papillomavirus (HPV) is the main etiological factor for the development of cervical cancer. HPV 18 is the second most frequent type, accounting for up to 65% of all cases. HPV intratypic variation may influence the potential for progression to invasive cancer. The aim of this study was to evaluate the prevalence of human papillomavirus 18 intratypic variants in cervical cancer samples from women in the state of Maranhão, Brazil. Methods The study included 118 women over 18 years of age with a diagnosis of cervical cancer. Tumor fragments were collected and subjected to DNA extraction and Polymerase Chain Reaction (PCR) for HPV detection using the PGMY09/11 and GP+5/6 primers. Positive samples were submitted to automated sequencing for viral genotyping. To determine the HPV 18 lineages, positive samples were submitted to PCR, using specific primers to amplify the LCR and E6 regions of HPV 18 virus. Results HPV was present in 88 women (73.3%). Of those, 48 (54%) were HPV 16, the most prevalent, followed by 12 (13.6%) HPV 18. Histologically, squamous cell carcinoma was predominant (79.1%). Among the HPV 18 variants identified, 10 (80%) belonged to lineage A, and sublineages A1, A2, A3, and A4. Two (29%) HPV 18 B variant was also detected, with the sublineages B1 and B2. In this study, the C variant was not found. There was no statistically significant association between the HPV 18 lineages found and sociodemographic and lifestyle variables (p > 0.05). Conclusions A higher frequency of HPV 16 and 18 were found in women with cervical cancer in the state of Maranhão, Brazil, with a high prevalence of the lineage A among women with HPV 18.

Comparison between gynecologic oncology ultrasound and magnetic resonance imaging in the assessment of early-stage cervical cancer: A local experience in cancer imaging / Philippine Journal of Obstetrics and Gynecology

Objective@#This study aimed to compare the diagnostic accuracy of gynecologic oncology ultrasound and magnetic resonance imaging (MRI) in the assessment of early-stage cervical cancer.@*Methodology@#This was a prospective, cross-sectional study of patients with early-stage cervical cancer eligible for radical hysterectomy in a tertiary government institution from November 25, 2020, to August 2, 2022. Preoperative gynecologic oncology (transabdominal/transvaginal/transrectal) ultrasound and MRI measurements were obtained and compared with histopathologic findings. Sensitivity, specificity, positive predictive value, negative predictive value, and positive likelihood ratio were used to check for the diagnostic accuracy of each modality.@*Results@#A total of 27 patients were enrolled in the study. Four were stage IB1 (14.81%), 10 were stage IB2 (37.03%), nine were stage IB3 (33.33%), two were stage IIA1 (7.40%), and two were stage IIA2 (7.40%). Ultrasound has a comparable diagnostic accuracy with MRI to assess tumor size length, width, and height with an area under the curve of 0.789, 0.753, and 0.806, respectively. Both modalities can predict the absence of parametrial invasion and nodal involvement with a specificity of 100% and a negative predictive value of 88.89% and 81.48%, respectively. The results of the gynecologic oncology ultrasound showed good agreement with MRI.@*Conclusion@#Ultrasound has comparable diagnostic accuracy with MRI in assessing tumor size, parametrial invasion, and nodal involvement in patients with early-stage cervical cancer. It is a good alternative imaging modality to MRI in staging cervical cancer, especially in low- to middle-income countries.