• Asian Pacific Journal of Cancer Prevention
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• 제14권2호
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• pp.1023-1026
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• 2013

Cervical cancer is the most important female gynecological cancer, the second leading cause of cancer mortality in women worldwide and the second most common cancer in Thai women. The major cause of cervical cancer is persistent infection of human papillomavirus (HPV), leading to abnormal epithelial lesions, with progression to precancerous and invasive cancer. This study was conducted to investigate the frequency and type distribution of HPV in Thai women who had abnormal cytology. HPV detection from FFPE confirmed abnormal of high grade cervical intraepithelial lesions were for SPF-10-Innogenic Line Probe Assay. HPV-positivity was detected in 320/355 cases (90.14%) and HPV-negativity in 35/355 (9.86%). HPV-positive was found 147/320 cases (41.4%) of single infection, whereas 173/320 cases (48.7%) showed the multiple HPV infection. The most common seven types were HPV-16, -52, -18, -11, -51, -31 and -33, in that order. HPV 16 and 18, the important oncogenic HPV type, were observed in 64.8% of HSIL cases. Interestingly, a high proportion of multiple infections was found in this study and more than ten types could be detected in one case. Therefore, HPV infection screening program in women is essential, particularly in Thailand. Effective primary and secondary prevention campaigns that reinforce HPV screening for HPV detection and typing may be decrease the incidence and mortality of cervical cancer in the future and may lead to significantly improve the quality of life in Thai women.

• Asian Pacific Journal of Cancer Prevention
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• 제14권10호
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• pp.5843-5847
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• 2013

Background: Persistent infection with high risk human papillomavirus (hrHPV) is strongly associated with cervical cancer. Normal cervical cells may also harbor hrHPV, and detection of early hrHPV infection may minimize risk of cervical cancer development. This study aimed to compare two commercial HPV genotyping assays that may affordable for early screening in a limited-resource setting in Bandung, Indonesia. Materials and Methods: DNA from cervical biopsies with histologically confirmed as squamous cell cervical cacinoma were HPV genotyped by Linear Assay 1 (Roche Diagnostics, Mannheim, Germany) or Linear Assay 2 (Digene HPV Genotyping RH Test, Qiagen Gaithersburg, MD). In a subset of samples of each group, HPV genotype results were then compared. Results: Of 28 samples genotyped by linear assay 1, 22 (78.6%) demonstrated multiple infections with HPV-16 and other hrHPV types 18, 45 and/or 52. In another set of 38 samples genotyped by linear assay 2, 28 (68.4%) were mostly single infections by hrHPV type 16 or 18. Interestingly, 4 samples that had been tested by both kits showed discordant results. Conclusions: In a limited-resource area such as in Indonesia, country with a high prevalence of HPV infection a reliable cervical screening test in general population for early hrHPV detection is needed. Geographical variation in HPV genotyping result might have impacts for HPV prevalence and molecular epidemiology as the distribution in HPV genotypes should give clear information to assess the impact of HPV prophylactic vaccines.

• Asian Pacific Journal of Cancer Prevention
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• 제14권11호
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• pp.6459-6463
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• 2013

We investigated the cancer screening rates for five types of cancer (stomach, liver, colorectal, breast, and cervix uteri) using data from the Korean National Cancer Screening Survey (KNCSS), which is a nationwide, annual cross-sectional survey. The eligible study population included cancer-free men 40 years of age and older and women 30 years of age and older. The lifetime screening rate and screening rate with recommendation were calculated. The lifetime screening rates for gastric, liver, colorectal, breast, and cervical cancers were 77.9%, 69.9%, 65.8%, 82.9%, and 77.1%, respectively. The screening rates with recommendation were 70.9%, 21.5%, 44.7%, 70.9%, and 67.9%, respectively. The most common reason for all types of cancer was "no symptoms", followed by "lack of time" and "fear of the examination procedure". Efforts to facilitate participation in liver and colorectal cancer screening among Korean men and women are needed.

• 대한의생명과학회지
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• 제26권1호
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• pp.8-13
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• 2020

Cervical cancer is the fourth most common cancer in women, with approximately 528,000 new cases and 266,000 women dying of it per year in the world. MicroRNAs have recently been in the spotlight as potential biomarkers that regulate gene expression and are involved in tumorigenesis. In the present study, we evaluated miR-1260b as a potential biomarker for screening of cervical cancer by quantitative reverse transcription PCR. We profiled the TCGA data of miR-1260b in 307 cervical cancer tissues. Then, miR-1260b expression levels in 10 cervical cancer tissues and 10 noncancerous tissues were investigated in a pilot study. miR-1260b was found to be significantly up-regulated in cervical cancer FFPE tissues as compared to those in cervical normal FFPE tissues (P = 0.006). The mean expression level of miR-1260b in late-stage (IIB-IVB) was higher than in those with early-stage (IA-IIA). Furthermore, high miR-1260b was found to be associated with high hTERT and Ki-67 mRNA expression, which are representative of tumor prognosis. The results of the pilot study suggest that miR-1260b may be used as a novel biomarker for improving the diagnosis of cervical cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제17권9호
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• pp.4409-4413
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• 2016

Background: Cervical cancer is the second most common of malignancy found in Thai women. Human papillomavirus (HPV) infection is a major cause. The objective of the present study was to evaluate the prevalence of HPV infection and association with abnormal cervical cytology in Thai women. Materials and Methods: This study was conducted at the Gynecologic Clinic, Thammasat University, Pathum Thani, Thailand. A total of 2,144 cases who underwent annual cervical cancer screening by co-testing (liquid based cytology and HPV testing, DNA versus mRNA) during the priod from July 2013 to June 2016 were recruited in this study. Results: Prevalence of positive high risk (HR) HPV DNA and mRNA test were 19.7 and 8.4%, respectively with a statistically significant difference. Majority of cases of abnormal cytology in this study were atypical squamous cells of undetermined significance (ASC-US). In patients with ASC-US, positive HR HPV DNA was greater than in the mRNA group (10.1 and 4.5%, p<0.001). Nonetheless, there was no significant difference in participants with cervical intraepithelial neoplasia (CIN). HPV mRNA test had slightly lower sensitivity but higher negative predictive value (NPV) than the DNA test to detect abnormal cytology during cervical cancer screening (p<0.001). Both HPV test (DNA and mRNA) had equally efficacy to detect high grade precancerous lesion or higher (CIN 2+). Conclusions: Prevalence of HR HPV DNA and mRNA were 19.7 and 8.4 percent, respectively. NPV of HPV mRNA was higher than DNA test. Both tests had equal efficacy to detect CIN 2+ with sensitivity and specificity of 63% vs 55.7% and 83% vs 92%, respectively.

• Asian Pacific Journal of Cancer Prevention
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• 제14권8호
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• pp.4865-4869
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• 2013

Background: The objectives of this present study were to assess the awareness of cervical cancer and its risk factors among female undergraduates in South Africa, and to determine the their level of acceptability of Human Papillomavirus (HPV) vaccination. Materials and Methods: This cross-sectional study was conducted in March 2013 among 440 full time undergraduate female students. Results: Of those students who never had sex (n=163), 96 (58.9%) had ever heard of cervical cancer and only 12 students (12.5%) knew that HPV causes cervical cancer. More than a third (35.4%) of the students correctly said that sexual intercourse before age of 18 years is a risk factor for cervical cancer and 55.2% of the students knew about the Pap smear test which is used for screening cervical cancer. The majority (77.3%) were willing to accept HPV vaccination. Results revealed that students who knew about the Pap smear test, and were aware that having multiple sex partners, sexual intercourse before the age of 18 years, smoking and having contracted any STDs are risk factors for cervical cancer were more likely to accept HPV vaccination compared to other groups. Conclusions: The general knowledge of South African female university students about cervical cancer is not sufficient but they have positive attitudes toward getting vaccinated with the HPV vaccine.

• Asian Pacific Journal of Cancer Prevention
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• 제16권18호
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• pp.8495-8501
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• 2016

Purpose: This study was conducted to assess the agreement and differences between cervical self-sampling with a Kato device (KSSD) and gynecologist sampling for Pap cytology and human papillomavirus DNA (HPV DNA) detection. Materials and Methods: Women underwent self-sampling followed by gynecologist sampling during screening at two primary health clinics. Pap cytology of cervical specimens was evaluated for specimen adequacy, presence of endocervical cells or transformation zone cells and cytological interpretation for cells abnormalities. Cervical specimens were also extracted and tested for HPV DNA detection. Positive HPV smears underwent gene sequencing and HPV genotyping by referring to the online NCBI gene bank. Results were compared between samplings by Kappa agreement and McNemar test. Results: For Pap specimen adequacy, KSSD showed 100% agreement with gynecologist sampling but had only 32.3% agreement for presence of endocervical cells. Both sampling showed 100% agreement with only 1 case detected HSIL favouring CIN2 for cytology result. HPV DNA detection showed 86.2%agreement (K=0.64, 95% CI 0.524-0.756, p=0.001) between samplings. KSSD and gynaecologist sampling identified high risk HPV in 17.3% and 23.9% respectively (p=0.014). Conclusion: The self-sampling using Kato device can serve as a tool in Pap cytology and HPV DNA detection in low resource settings in Malaysia. Self-sampling devices such as KSSD can be used as an alternative technique to gynaecologist sampling for cervical cancer screening among rural populations in Malaysia.

• Asian Pacific Journal of Cancer Prevention
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• 제15권18호
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• pp.7679-7686
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• 2014

Background: This study aimed to seek insights into Chinese women's lay beliefs about cervical cancer causal attributions and prevention. Materials and Methods: Twenty-three new immigrant adult women from Mainland China and thirty-five Hong Kong adult women underwent semi-structured in-depth interviews. Interviews were audio taped, transcribed and analyzed using a Grounded Theory approach. Results: This study generated three foci: causal beliefs about cervical cancer, perceived risk of cervical cancer, and beliefs about cervical cancer prevention. Personal risky practices, contaminated food and environment pollution were perceived as the primary causes of cervical cancer. New immigrant women more likely attributed cervical cancer to external factors. Most participants perceived cervical cancer as an important common fatal female cancer with increased risk/prevalence. Many participants, particularly new immigrant women participants, expressed helplessness about cervical cancer prevention due to lack of knowledge of prevention, it being perceived as beyond individual control. Many new immigrant participants had never undergone regular cervical screening while almost all Hong Kong participants had done so. Conclusions: Some Chinese women hold pessimistic beliefs about cervical cancer prevention with inadequate knowledge about risk factors. Future cervical cancer prevention programs should provide more information and include capacity building to increase Chinese women's knowledge and self-efficacy towards cervical cancer prevention.

• 디지털융복합연구
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• 제12권5호
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• pp.305-310
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• 2014

본 연구는 20세 이상 여성들의 Pap 도말검사를 통한 자궁암 검진 수용도에 영향을 미치는 요인들을 규명하기 위해 시도하였다. 이를 위해 2013년 4월 22일부터 5월 24일까지 건강검진센터에 내원한 검진자들 192명을 대상으로 설문 및 면접조사를 실시하였다. 연구결과 첫째, 종교가 없는 집단에서 비검진 수용군이 45.8%로 검진 수용군의 32.3%보다 유의하게 높은 분포를 보였다($X^2=4.82$, p<.05). 둘째, 모유수유를 하는 집단의 비검진 수용군이 61.5%로 검진 수용군의 46.9%보다 유의하게 높은 분포를 하였다($X^2=0.61$, p<.05). 셋째, 타검진력은 검진을 하는 군이 검진을 하지 않는 수용군보다 4.62배 유의하게 높은 것으로 나타났다(95% Cl=1.15-9.84, P=0.006). 본 연구결과를 토대로 자궁암 Pap 도말검사 수용도에 일반인들의 부정적인 태도를 변화시킬 수 있는 더 많은 자궁암 검진 정보를 제공하는 것이 필요하다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권5호
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• pp.1719-1724
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• 2015

Background: Breast and cervical cancers are the most common types of cancer in women worldwide. Previous studies in Asia have shown that related knowledge and awareness is low among female university students. The goal of this study was to assess breast and cervical cancer knowledge, practices, and awareness among female university students in Samsun,Turkey. Materials and Methods: This research was a cross-sectional survey of female university students using a self-administered. questionnaire to investigate participant awareness and knowledge of breast and cervical cancer. A total of 301 female university students participated. Descriptive statistics and chi square tests were used for data analysis. Results: The mean age of the participants in this study was $22.0{\pm}5.91$ years. Regarding family history, 89.7 % of the students had no known familial history of breast cancer. Students (65.4%) had knowledge about breast self examination and 52.2 % of them had performed breast self examinationm while 55.1% of them had knowledge about prevention of cervical cancer. Conclusions: Although the results are preliminary, the study points to an insufficient knowledge of university students in Samsun about breast and cervical cancer.