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1.
Int J Cancer ; 2024 Apr 11.
Artigo em Inglês | MEDLINE | ID: mdl-38602045

RESUMO

Overexpression of HPV-oncoproteins E6 and E7 is necessary for HPV-driven cervical carcinogenesis. Hence, these oncoproteins are promising disease-specific biomarkers. We assessed the technical and operational characteristics of the 8-HPV-type OncoE6/E7 Cervical Test in different laboratories using cervical samples from HPV-positive women living with (WLWH) and without HIV. The 8-HPV-type OncoE6/E7 Test (for short: "OncoE6/E7 test") was performed in 2833 HIV-negative women and 241 WLWH attending multicentric studies in Latin America (ESTAMPA study), and in Africa (CESTA study). Oncoprotein positivity were evaluated at each testing site, according to HIV status as well as type-specific agreement with HPV-DNA results. A feedback questionnaire was given to the operators performing the oncoprotein test to evaluate their impression and acceptability regarding the test. The OncoE6/E7 test revealed a high positivity rate heterogeneity across all testing sites (I2: 95.8%, p < .01) with significant lower positivity in WLWH compared to HIV-negative women (12% vs 25%, p < .01). A similar HPV-type distribution was found between HPV DNA genotyping and oncoprotein testing except for HPV31 and 33 (moderate agreement, k = 0.57). Twenty-one laboratory technicians were trained on oncoprotein testing. Despite operators' concerns about the time-consuming procedure and perceived need for moderate laboratory experience, they reported the OncoE6/E7 test as easy to perform and user-friendly for deployment in resource-limited settings. The high positivity rate variability found across studies and subjectivity in test outcome interpretation could potentially results in oncoprotein false positive/negative, and thus the need for further refinements before implementation of the oncoprotein testing in screen-triage-and-treat approaches is warranted.

2.
Front Med (Lausanne) ; 9: 1006038, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36465901

RESUMO

Background: Replacement of cytology screening with HPV testing is recommended and essential for cervical cancer elimination. HPV testing for primary screening was implemented in 12 laboratories within 9 Latin American countries, as part of the ESTAMPA cervical cancer screening study. Our observations provide information on critical operational aspects for HPV testing implementation in diverse resource settings. Methods: We describe the implementation process of HPV testing in ESTAMPA, focusing on laboratory aspects. We assess the readiness of 12 laboratories to start HPV testing and their continuity capacity to maintain good quality HPV testing until end of recruitment or up to December 2021. Readiness was based on a checklist. Information from the study database; regular meetings and monitoring visits; and a questionnaire on laboratory operational aspects sent in May 2020 were used to assess continuity capacity. Compliance with seven basic requirements (readiness) and eight continuity requirements (continuity capacity) was scored (1 = compliant, 0 = not compliant) and totaled to classify readiness and continuity capacity as very limited, limited, moderate or high. Experiences, challenges, and enablers of the implementation process are also described. Results: Seven of 12 laboratories had high readiness, three moderate readiness, and of two laboratories new to HPV testing, one had limited readiness and the other very limited readiness. Two of seven laboratories with high readiness also showed high continuity capacity, one moderate continuity capacity, and the other four showed limited continuity capacity since they could not maintain good quality HPV testing over time. Among three laboratories with moderate readiness, one kept moderate continuity capacity and two reached high continuity capacity. The two laboratories new to HPV testing achieved high continuity capacity. Based on gained expertise, five laboratories have become part of national screening programs. Conclusion: High readiness of laboratories is an essential part of effective implementation of HPV testing. However, high readiness is insufficient to guarantee HPV testing high continuity capacity, for which a "culture of quality" should be established with regular training, robust monitoring and quality assurance systems tailored to local context. All efforts to strengthen HPV laboratories are valuable and crucial to guarantee effective implementation of HPV-based cervical screening.

3.
PLoS One ; 17(7): e0272205, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35905130

RESUMO

The proportion of HPV16 and 18-associated cervical cancer (CC) appears rather constant worldwide (≥70%), but the relative importance of the other HR-HPV differs slightly by geographical region. Here, we studied the HPV genotype distribution of HPV positive Latin American (LA) women by histological grade, in a sub-cohort from the ESTAMPA study; we also explored the association of age-specific HPV genotypes in severe lesions. Cervical samples from 1,252 participants (854 ≤CIN1, 121 CIN2, 194 CIN3 and 83 CC) were genotyped by two PCRs-Reverse Blotting Hybridization strategies: i) Broad-Spectrum General Primers 5+/6+ and ii) PGMY9/11 PCRs. HPV16 was the most frequently found genotype in all histological grades, and increased with the severity of lesions from 14.5% in ≤ CIN1, 19.8% in CIN2, 51.5% in CIN3 to 65.1% in CC (p < 0.001). For the remaining HR-HPVs their frequency in CC did not increase when compared to less severe categories. The nonavalent vaccine HR-types ranked at the top in CC, the dominant ones being HPV16 and HPV45. HR-HPV single infection occurs, respectively, in 57.1% and 57.0% of ≤CIN1 and CIN2, increasing to 72.2% and 91.6% in CIN3 and CC (p<0.001). No association between age and HPV type was observed in CC, although the risk of HPV16 infection in CIN3 cases increased with age. Results confirm the relevance of HPV16 in the whole clinical spectrum, with a strong rise of its proportion in CIN3 and cancer. This information will be relevant in evaluating the impact of HPV vaccination, as a baseline against which to compare genotype changes in HPV type-specific distribution as vaccinated women participate in screening in LA region. Likewise, these data may help select the best HPV testing system for HPV-based efficient, affordable, and sustainable screening programmes.


Assuntos
Infecções por Papillomavirus , Displasia do Colo do Útero , Neoplasias do Colo do Útero , Feminino , Genótipo , Papillomavirus Humano 16/genética , Humanos , América Latina/epidemiologia , Papillomaviridae/genética , Neoplasias do Colo do Útero/diagnóstico , Displasia do Colo do Útero/diagnóstico
4.
PLoS One ; 14(6): e0218016, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31246959

RESUMO

BACKGROUND: Cervical cancer (CC) is one of the leading causes of cancer mortality among women from Paraguay, with high incidence and mortality rates (31.2 and 16 per 100 000 women, respectively). Although the risk factors associated with high-risk human papillomavirus (hrHPV) infection and preneoplastic cervical lesions are widely studied, population-based characteristics of particular settings may influence the feasibility of HPV-based CC screening implementation. This study aimed to explore factors associated with hrHPV infection and high-grade cervical neoplasia in hrHPV-positive (hrHPV+) women from Paraguay. METHODS: A total of 5677 women aged 30-64 years from the Central Department of Paraguay were screened with HPV test (Hybrid Capture 2) and Pap smear. Sociodemographic and risk factor interviews were conducted. hrHPV+ women were referred to colposcopy and women with an abnormal colposcopy had a biopsy taken. The outcomes recorded were the hrHPV status and the presence of high-grade cervical intraepithelial neoplasia or worse (CIN2+) among hrHPV+ women. Associations were investigated using multivariate logistic regressions. RESULTS: hrHPV prevalence was 13.8% (95%CI 13.0-14.8). This value decreased with the age of women (p-trend<0.001) and increased with the lifetime number of sexual partners (p-trend<0.001) and number of previous female partners of their current male partner if women had had one lifetime sexual partner (p-trend<0.001), increasing from 3.06 (95%CI 0.073-20.9) if partners had had one previous female partner to 9.19 (95%CI 2.36-61.1) if they had had eight or more. In hrHPV+ women, CIN2+ prevalence was 10.7% (95%CI 8.58-13.2) and increased with time since the last Pap smear (p-trend<0.001) and with the increasing number of pregnancies (p-trend = 0.05). CONCLUSION: In these settings, the sexual behavior of women and their male partners is associated with hrHPV infection. In hrHPV+ women, underscreening practices and multiple pregnancies are associated with CIN2+. This knowledge can contribute to public health policies for CC prevention and control in Paraguay.


Assuntos
Infecções por Papillomavirus/epidemiologia , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/virologia , Adulto , Idoso , Feminino , Geografia , Humanos , Pessoa de Meia-Idade , Gradação de Tumores , Razão de Chances , Infecções por Papillomavirus/patologia , Paraguai/epidemiologia , Prevalência , Fatores de Risco , Neoplasias do Colo do Útero/patologia
5.
Rev. Univ. Ind. Santander, Salud ; 48(1): 37-44, Febrero 16, 2016. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-779691

RESUMO

Introducción: El cáncer de cuello uterino es un problema de salud pública en Paraguay. Objetivo: Determinar conocimientos, actitudes y prácticas sobre virus del papiloma humano (VPH) y cáncer de cuello uterino en mujeres de 12 Unidades de Salud Familiar (USF) de Bañado Sur-Asunción, periodo abril-octubre 2012. Metodología: Estudio descriptivo de corte transversal, utilizando cuestionario estructurado autoadministrado. Resultados: La edad promedio de las encuestadas fue 42 años, la mayoría en unión libre o casadas (70%); 65% tienen educación básica y media, 56% son amas de casa. El 83% tienen seguro médico; 78% escuchó hablar sobre cáncer de cuello uterino, 74% de éstas en los centros de salud. El 10% de las encuestadas conoce el VPH y lo relaciona con la enfermedad, 90 % escuchó hablar sobre la prueba de Papanicolaou, el 27 % de ellas sabe en qué consiste; 90% de las mujeres demostró actitud favorable y 56% prácticas favorables respecto a la prevención de la enfermedad. Conclusiones: El estudio permite conocer la percepción que tiene una población de mujeres de un barrio marginal de la capital del país, respecto al cáncer de cuello uterino y el principal factor de riesgo que lo produce, a fin de incrementar la prestación de servicios de prevención de este tipo de cáncer, además de propiciar el trabajo interinstitucional e intersectorial en la prevención y control de la enfermedad en el país.


Introduction: Cervix cancer is a public health problem in Paraguay. Objective: To determine knowledge, attitudes and practices on human papilloma virus (HPV) and uterine cervix cancer in women from 12 Family Health Units (FHU) of the Bañado Sur- Asunción, April-October 2,012 period. Methodology: Descriptive cross-sectional study that used self-administered structured questionnaires. Results: The mean age was 42 years, most of them cohabitated or were married (70%); 65% had elementary and secondary education and 56% was housewife; 83% had medical insurance and 78% heard about uterine cervix cancer, 74% of them in health posts. Only 10% knew HPV and related it to a disease, 90% heard about Papanicolaou test, but only 27% knew what is, 90% showed favorable attitude and 56% favorable practices in relation to the disease prevention. Conclusions: The study provided information on the perception that a population of women from a marginal zone of the capital have in relation to cervical cancer and its main risk factor. This will allow increasing the supply of prevention services for this type of cancer, along with promoting inter-institutional and inter-sectorial work on the prevention and control of this disease in the country.


Assuntos
Humanos , Feminino , Paraguai , Neoplasias do Colo do Útero , Estágio Clínico , Conhecimento , Papillomaviridae , Atitude , Displasia do Colo do Útero , Colo do Útero
6.
Rev. Univ. Ind. Santander, Salud ; 47(3): 271-280, Octubre 28, 2015. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-768100

RESUMO

Introducción: Las comunidades indígenas presentan un mayor riesgo de inseguridad alimentaria y malnutrición, menor disponibilidad de recursos, y una creciente dependencia de alimentos más baratos aunque con un alto grado de procesamiento. Objetivo: Identificar el estado nutricional y aspectos alimentarios en mujeres indígenas de tres comunidades del Departamento de Presidente Hayes, Chaco Paraguayo. Metodología: Estudio observacional de diseño transversal con componente analítico, que incluyó a 81 mujeres de 15 a 44 años de edad, de las etnias Maká y Toba Qom. Previo consentimiento informado, se realizó la valoración nutricional y la entrevista para obtener los datos sociodemográficos y alimentarios. Resultados: Las mujeres indígenas presentaron una frecuencia de sobrepeso de 30,8% y obesidad del 21,0%, mientras que el 1,2 % presentó desnutrición. No encontramos diferencia significativa entre las etnias, en relación al sobrepeso y obesidad, (p>0,05). Observamos que las indígenas tenían una alta ingesta de frutas, azúcares y mieles. El 87 y 88% de las mujeres indígenas de ambas etnias estudiadas refirieron no consumir lácteos y derivados y entre 65 y 69% refirieron no consumir verduras. Conclusiones: Observamos un elevado porcentaje de obesidad y sobrepeso, un bajo consumo de lácteos y verduras y un alto consumo de azúcares, relacionados posiblemente a cambios en los aspectos alimentarios y sus costumbres, influenciados por la cercanía a las zonas urbanas y el acceso a alimentos de menor precio y mayor contenido energético.


Introduction: Indigenous communities present higher risk of food insecurity and malnutrition, lower availability of resources and growing dependence on cheaper food but with high degree of processing. Objective: To identify the nutritional state and food aspects in indigenous women from three communities of Presidente Hayes Department, Paraguayan Chaco. Methodology: Cross-sectional observational study with analytical component including 81 women who were 15 to 44 years old from the Maká and Toba Qom ethnic groups. After giving their informed consent, the nutritional assessment and the interview to collect socio-demographic and food data were carried out. Results: The indigenous women presented an overweight frequency of 30.8 % and obesity of 21.0%, while malnutrition was observed in 1.2%. No significant differences were found between ethnic groups in relation to overweight and obesity (p>0.05). High ingestion of fruits, sugar and honey was observed and 87% and 88% of the indigenous women from both ethnic groups referred that they did not consume dairy products and derivatives and 65% and 69% referred that they did not consume vegetables. Conclusions: High percentages of obesity and overweight were observed. Low consumption of dairy products, its by products and vegetables and a high consumption of sugar were observed, related probably to changes in food aspects and the habits of these groups, influenced by the proximity to urban areas and the access to low prices food with high energetic content.


Assuntos
Humanos , Feminino , Estado Nutricional , Dieta , Paraguai , Mulheres , Povos Indígenas
7.
Int J Infect Dis ; 39: 44-9, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26283550

RESUMO

OBJECTIVE: To determine the frequency of human papillomavirus (HPV) types and to assess bacterial vaginosis (BV) possible associations with cervical infections in indigenous Paraguayan women of the Department of Presidente Hayes. METHODS: This study included 181 sexually active women without cervical lesions. HPV typing was performed by polymerase chain reaction with primers PGMY 09/11 followed by reverse line hybridization. BV was diagnosed by the Nugent criteria using the results from a Gram stain smear. RESULTS: Sixteen percent of women were positive for at least one high risk HPV type (HR-HPV). The most frequent genotypes were HPV 16 (4.4%), followed by HPV 58 (3.3%), HPV 45 (3.3%), HPV 53 (2.8%) and HPV 11 (2.8%). A significant association between HR-HPV and BV was observed (p=0.01). In addition, women with BV had a higher frequency of Chlamydia trachomatis (p=0.0007), Trichomonas vaginalis (p=0.00009), Mycoplasma hominis (p=0.001). CONCLUSIONS: A large variety of HPV genotypes was detected and showed a slightly different pattern from previous studies on urban women in Paraguay, with the predominance of HR-HPV. Furthermore, the information of co-infections involved in BV could be useful for the improvement of national prevention programs, as well as for laboratory surveillance of these genital infections.


Assuntos
Papillomaviridae/genética , Infecções por Papillomavirus/virologia , Vaginose Bacteriana/microbiologia , Adulto , Alphapapillomavirus/genética , Alphapapillomavirus/isolamento & purificação , Colo do Útero/microbiologia , Colo do Útero/virologia , Chlamydia trachomatis/isolamento & purificação , Coinfecção/complicações , Feminino , Genótipo , Papillomavirus Humano 16/genética , Papillomavirus Humano 16/isolamento & purificação , Humanos , Mycoplasma hominis/isolamento & purificação , Papillomaviridae/classificação , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/epidemiologia , Paraguai/epidemiologia , Trichomonas vaginalis/isolamento & purificação , Vaginose Bacteriana/epidemiologia , Adulto Jovem
8.
Mem. Inst. Invest. Cienc. Salud (Impr.) ; 12(1): 7-13, jun. 2014. tab
Artigo em Espanhol | LILACS, BDNPAR | ID: lil-736912

RESUMO

Trabajos han demostrado la utilidad de la captura híbrida II (CH II®) en la detección del virus de papiloma humano de alto riesgo oncogénico (HR-HPV) como método de tamizaje primario para detección de cáncer de cuello uterino, así como las bondades de la PCR que permite acceder a métodos de tipificación viral. Por ello el objetivo fue detectar el genoma del HPV por PCR a partir de muestras de CH II® cien veces diluidas. Estudio transversal en 141 muestras cervicales de mujeres con citología normal y anormal que concurrieron al IICS, UNA. Las muestras fueron procesadas por CH II® y almacenadas con reactivo desnaturalizante a -80ºC. Luego, las muestras fueron diluidas 100 veces con agua destilada y posteriormente procesadas por PCR. Se detectó HPV en 51% y 43% de las muestras analizadas por CH II® y PCR, respectivamente. Diecisiete de 23 muestras positivas por CH II® con carga viral relativa baja fueron negativas por PCR. Esto podría deberse a la degradación del material. Además, 6 muestras negativas por CH II® fueron positivas por PCR sugiriendo presencia de infección con tipos virales no incluidos en CH II® . Estos resultados sugieren que es posible realizar la detección de HPV por PCR en muestras procesadas por CH II® previa dilución. Esta propuesta rápida, sencilla y económica, minimiza el riesgo de perder el material genético en la extracción y permite acceder a métodos de tipificación viral que podrían contribuir con datos sobre tipos de HPV circulantes para realizar una vigilancia en la era post-vacunal.


Studies havedemonstrated the usefulness of the hybrid capture II (CHII) in thedetection of oncogenic high risk human papillomavirus (HR-HPV) asaprimaryscreeningmethod for detection of cervical cancer, as well as the benefits of PCR that allows accessto viral typing methods. The objective was todetect HPV by PCR from cervical samplesprocessed by CH II.It was a cross-sectional study including141cervicalsamples ofwomenattendingtheIICS,UNA. Thesampleswereprocessed by CH IIand storedwithdenaturing reagent at-80ºC.Then,theywere diluted 100 times with distilled water andsubsequently processed by PCR. HPV was detected in 51% and 43% of the samples analyzed by CH IIand PCR respectively. Seventeen of 23 positive samples by CH IIwith relatively low viral load were negative by PCR. This could be due to degradation ofthe material. In addition,sixnegative samples by CH IIwere positive by PCR suggestingthe presence of infection with HPV types not included in CH II. These results suggestthat it is possible to detect HPV by PCRfrom samples processed by CH IIprior dilution.This is a quick, easy and economic alternative which minimizes the risk of losing thegenetic material in the extraction process,and allows access to viral typing methods thatcouldprovide data aboutcirculating HPVtypesto carry out surveillance in thepost-vaccine era.


Assuntos
Colo do Útero , Neoplasias do Colo do Útero , Reação em Cadeia da Polimerase
9.
BMC Infect Dis ; 13: 531, 2013 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-24206645

RESUMO

BACKGROUND: The incidence of cervical cancer in Paraguay is among the highest in the world, with the human papillomavirus (HPV) being a necessary factor for cervical cancer. Knowledge about HPV infection among indigenous women is limited. This cross-sectional study analyzed the frequency of HPV and other genital infections in indigenous Paraguayan women of the Department of Presidente Hayes. METHODS: This study included 181 sexually active women without cervical lesions. They belonged to the following ethnicities: Maká (n = 40); Nivaclé (n = 23); Sanapaná (n = 33); Enxet Sur (n = 51) and Toba-Qom (n = 34). The detection of HPV and other gynecological infectious microorganisms was performed by either molecular methods (for Mycoplasma hominis, Ureaplasma urealyticum, Chlamydia trachomatis), gram staining and/or culture (for Gardnerella vaginalis, Candida sp, Trichomonas vaginalis, Neisseria gonorrhoeae), serological methods (for Treponema pallidum, human immunodeficiency virus [HIV]) or cytology (cervical inflammation). RESULTS: A high prevalence (41.4%) of women positive for at least one sexually transmitted infection (STI) was found (23.2% any-type HPV, 11.6% T pallidum, 10.5% T vaginalis, 9.9% C trachomatis and 0.6% HIV) with 12.2% having more than one STI. HPV infection was the most frequent, with 16.1% of women positive for high-risk HPV types. There was a statistically significant association observed between any-type HPV and C trachomatis (p = 0.004), which indicates that the detection of one of these agents should suggest the presence of the other. There was no association between any-type HPV and other genital infections or cervical inflammation, suggesting that other mechanism could exist to favor infection with the virus. CONCLUSION: This multidisciplinary work suggests that STIs are frequent, making it necessary to implement control measures and improve diagnosis in order to increase the number of cases detected, especially in populations with poor access to health centers.


Assuntos
Infecções por Papillomavirus/epidemiologia , Infecções Sexualmente Transmissíveis/epidemiologia , Adulto , Estudos Transversais , Feminino , Humanos , Paraguai/epidemiologia , Prevalência , Adulto Jovem
10.
Rev Bras Epidemiol ; 16(1): 40-8, 2013 Mar.
Artigo em Espanhol | MEDLINE | ID: mdl-23681321

RESUMO

OBJECTIVE: To determinate the frequency of high risk human papillomavirus (HR-HPV) by hybrid capture II (r) (CH II(r)), according cytology results in women treated for squamous intraepithelial lesions of the cervix (SIL). MATERIAL AND METHODS: A descriptive cross-sectional study of a series of cases that included 122 women treated, 79 (75%) for low grade SIL (LSIL) and 43 (35%) for high grade SIL (HSIL) attending at the HPV Laboratory at the Health Sciences Research Institute (IICS), National University of Asunción (UNA), for post-treatment control during period 2006/2010. RESULTS: A total of 28% (34/122) of women treated for SIL were positive for HR-HPV, detecting viral infection in 20% of women with no SIL (NSIL) (22/108), in 83% of women with LSIL (10/12) and in 100% of women with HSIL (2/2). Of 34 women positive for HR-HPV, 10 women (29%) had high values (100 pg / mL or more) of relative viral load, detecting an increase of positive cases with severity of the lesion (28% NSIL, 30% LSIL, 50% HSIL). CONCLUSION: HR-HPV detection by CH II(r) and high relative viral load values especially in women with NSIL could help to identify treated women at risk of developing recurrence, thereby contributing to strengthening the cervical cancer prevention program.


Assuntos
Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/diagnóstico , Displasia do Colo do Útero/patologia , Displasia do Colo do Útero/virologia , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/virologia , Adulto , Estudos Transversais , Sondas de DNA de HPV , Feminino , Humanos , Infecções por Papillomavirus/terapia , Fatores de Risco , Fatores de Tempo , Neoplasias do Colo do Útero/terapia
11.
Int J Gynaecol Obstet ; 122(1): 44-7, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23507556

RESUMO

OBJECTIVE: To determine the distribution of HPV-16 variants among Paraguayan women with different grades of cervical lesions. METHODS: Sixty-seven HPV-16-positive cervical samples obtained from women attending health centers in Paraguay between March 2007 and April 2009 were examined, including 29 low-grade squamous intraepithelial lesion (LSIL), 29 high-grade squamous intraepithelial lesion (HSIL), 4 cervical cancer, and 5 normal cytology samples. The specimens were analyzed by PCR-directed sequencing of a 364-bp fragment of the long control region of HPV-16, and a phylogenetic tree was compiled with MEGA 5.0 software. RESULTS: Most HPV-16 variants belonged to the European branch (82%); these variants were detected among 25 of 29 women with LSIL, 22 of 29 women with HSIL, 3 of 4 women with cervical cancer, and all women with normal cytology. Two isolates yielded new variants of the European branch with nucleotide substitutions at positions A7752C and A7810T. Non-European variants, such as African type 1 (1.5%) and Asian-American (16.5%), were detected only among women with cervical lesions (4/29, LSIL; 6/29, HSIL; 1/29, cervical cancer). These variants had at least 6 nucleotide substitutions adjacent to or within transcription factor binding sites. CONCLUSION: All branches of HPV-16 variants were detected among Paraguayan women with cervical lesions.


Assuntos
Papillomavirus Humano 16/isolamento & purificação , Infecções por Papillomavirus/virologia , Displasia do Colo do Útero/virologia , Neoplasias do Colo do Útero/virologia , Adolescente , Adulto , Idoso , Sítios de Ligação , Feminino , Papillomavirus Humano 16/genética , Humanos , Pessoa de Meia-Idade , Nucleotídeos/genética , Infecções por Papillomavirus/epidemiologia , Paraguai/epidemiologia , Reação em Cadeia da Polimerase , Análise de Sequência de DNA , Fatores de Transcrição/genética , Neoplasias do Colo do Útero/epidemiologia , Adulto Jovem , Displasia do Colo do Útero/epidemiologia
12.
Rev. bras. epidemiol ; 16(1): 40-48, mar. 2013. tab
Artigo em Espanhol | LILACS | ID: lil-674795

RESUMO

OBJETIVO: Determinar la frecuencia del virus de papiloma humano de alto riesgo oncogénico (HR-HPV) por captura híbrida II (r) (CH II(r)) según hallazgos citológicos en mujeres tratadas por lesiones escamosas intraepiteliales (SIL) de cuello uterino. MATERIAL Y MÉTODO: Estudio descriptivo de corte transverso de una serie de casos, en donde se incluyeron 122 mujeres tratadas, 79 (65%) por SIL de bajo grado (LSIL) y 43 (35%) por SIL de alto grado (HSIL) que concurrieron al Laboratorio de HPV del Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, para realizarse un control post-tratamiento, periodo 2006/2010. RESULTADOS: Se observó un total del 28% (34/122) de mujeres tratadas por SIL positivas para HR-HPV, detectándose infección viral en un 20% de las mujeres con ausencia de SIL (NSIL) (22/108), 83% de las mujeres con LSIL (10/12) y 100% de las mujeres con HSIL (2/2). De las 34 mujeres positivas para HR-HPV, 10 mujeres (29%) presentaron valores altos (100 pg/mL o más) de carga viral relativa, detectándose un aumento de casos positivos con la severidad de la lesión (28% NSIL, 30% LSIL, 50% HSIL). CONCLUSION: La detección de HR-HPV por CH II(r), así como los valores de carga viral relativa altos, en especial en mujeres con NSIL podrían ayudar a identificar mujeres tratadas con riesgo a desarrollar recidivas, contribuyendo así a fortalecer el programa de prevención de cáncer de cuello uterino. .


OBJECTIVE: To determinate the frequency of high risk human papillomavirus (HR-HPV) by hybrid capture II (r) (CH II(r)), according cytology results in women treated for squamous intraepithelial lesions of the cervix (SIL). MATERIAL AND METHODS: A descriptive cross-sectional study of a series of cases that included 122 women treated, 79 (75%) for low grade SIL (LSIL) and 43 (35%) for high grade SIL (HSIL) attending at the HPV Laboratory at the Health Sciences Research Institute (IICS), National University of Asunción (UNA), for post-treatment control during period 2006/2010. RESULTS: A total of 28% (34/122) of women treated for SIL were positive for HR-HPV, detecting viral infection in 20% of women with no SIL (NSIL) (22/108), in 83% of women with LSIL (10/12) and in 100% of women with HSIL (2/2). Of 34 women positive for HR-HPV, 10 women (29%) had high values (100 pg / mL or more) of relative viral load, detecting an increase of positive cases with severity of the lesion (28% NSIL, 30% LSIL, 50% HSIL). CONCLUSION: HR-HPV detection by CH II(r) and high relative viral load values especially in women with NSIL could help to identify treated women at risk of developing recurrence, thereby contributing to strengthening the cervical cancer prevention program. .


Assuntos
Adulto , Feminino , Humanos , Displasia do Colo do Útero/patologia , Displasia do Colo do Útero/virologia , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/diagnóstico , Neoplasias do Colo do Útero/patologia , Neoplasias do Colo do Útero/virologia , Estudos Transversais , Sondas de DNA de HPV , Infecções por Papillomavirus/terapia , Fatores de Risco , Fatores de Tempo , Neoplasias do Colo do Útero/terapia
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