RESUMEN
OBJECTIVE: To determine the prevalence of cytologic abnormalities in cervical smears from women attending the first organized screening program in Suriname and to compare the prevalences in 4 Surinamese ethnicities with different cervical carcinoma incidences. STUDY DESIGN: Cervical scrapes were taken from women with 4 different ethnicities: Maroons, Amerindians, Javanese and Hindustani. Papanicolaou staining and cytologic screening were performed on 807 cervical smears. RESULTS Cervical cytologic abnormalities were seen in 13.4%, of which 8.1% (62 of 764) had atypical changes, 2.6% (20 of 764) had mild and 2.6% (20 of 764) had moderate and severe dysplasia/carcinoma in situ (CIS). The cytologic abnormalities varied between the ethnicities: 42.1% (83 of 197) in the Maroons and 2.3% (4 of 176), 5.0% (9 of 183) and 3.0% (6 of 208) in the Javanese, Amerindians, and Hindustani, respectively. CONCLUSION: The high prevalence of moderate and severe dysplasia/CIS in all ethnicities correlates with the high cervical carcinoma incidence in Suriname. A significantly higher prevalence of mild abnormalities in the Maroons was observed; it did not reflect the relatively low cervical cancer incidence in this ethnicity. However, this can be explained by the possibility that these women have a different sexual lifestyle, leading to a higher prevalence of
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Etnicidad , Prueba de Papanicolaou , Displasia del Cuello del Útero/etnología , Neoplasias del Cuello Uterino/etnología , Frotis Vaginal , Femenino , Humanos , Tamizaje Masivo , Oportunidad Relativa , Prevalencia , Suriname/epidemiología , Tricomoniasis/etnología , Tricomoniasis/patología , Neoplasias del Cuello Uterino/patología , Displasia del Cuello del Útero/patologíaRESUMEN
In cervical cancer, human papillomavirus type 18 (HPV 18) and HPV 16 are predominantly related to adenocarcinomas (ADCs) and squamous cell carcinomas (SCCs), respectively. Here, we studied whether the geographically distributed HPV intratypic variants are also associated with histologically different tumors. A total of 44 HPV 18-positive and 91 HPV 16-positive cervical carcinomas from Indonesian, Surinamese and Dutch patients were histologically classified using hematoxilin and eosin, periodic acid Schiff plus and Alcian Blue staining. Samples were sequenced and intratypic variants were classified into the known phylogenetic branches. The Asian Amerindian HPV 18 variant was observed in 56% of ADCs compared to 15% of SCCs (p < 0.006). The African HPV 18 variant was exclusively found in SCCs. By sequencing the HPV 18 E6 and E7 open reading frames, we found predicted amino acid changes only in 8 samples. Two amino acid changes were consistent throughout the African branch. In HPV 16-positive tumors, we did not find a specific linkage between intratypic variants and histopathology. We conclude that HPV 18 intratypic variants are differentially associated with adenocarcinoma and squamous cell carcinoma of the cervix. The findings described here stress the biologic significance of intratypic HPV variants and might help explaining differences in the pathogenesis of cervical ADCs and SCCs.
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Adenocarcinoma/epidemiología , Adenocarcinoma/virología , Carcinoma de Células Escamosas/epidemiología , Carcinoma de Células Escamosas/virología , Proteínas de Unión al ADN/genética , Proteínas Oncogénicas Virales/genética , Papillomaviridae/genética , Papillomaviridae/patogenicidad , Polimorfismo Genético , Proteínas Represoras/genética , Neoplasias del Cuello Uterino/epidemiología , Neoplasias del Cuello Uterino/virología , Adenocarcinoma/etiología , Secuencia de Bases , Carcinoma de Células Escamosas/etiología , ADN Viral/análisis , Femenino , Geografía , Humanos , Incidencia , Indonesia/epidemiología , Datos de Secuencia Molecular , Países Bajos/epidemiología , Proteínas E7 de Papillomavirus , Filogenia , Análisis de Secuencia de ADN , Suriname/epidemiología , Neoplasias del Cuello Uterino/etiologíaRESUMEN
Aims to compare coronary stent implantation and bypass surgery for multivessel coronary disease in patients with renal insufficiency. Methods and results In the ARTS trial, 142 moderate renal insufficient patients (Ccr , 60 mL/min) with multivessel coronary disease were randomly assigned to stent implantation (n » 69) or CABG (n » 73).At 5 years, there was no significant difference between the two groups in terms of mortality (14.5% in the stent group vs. 12.3% in the CABG group, P » 0.81), or combined endpoint of death, cerebrovascular accident (CVA), or myocardial infarction (MI) (30.4% in the stent group vs. 23.3% in the CABG group, P » 0.35). Among patients who survived without CVA or MI, 18.8% in the stent group underwent a second revascularization procedure when compared with 8.2% in the surgery group (P » 0.08). Theevent-free survival at 5 years was 50.7% in the stent group and 68.5% in the surgery group (P » 0.04).Conclusion At 5 years, the differences in mortality and combined incidence of death, CVA, and MI between coronary stenting and surgery did not reach statistically significant level. However, the occurrence of MACCE in the stent group was higher than in the CABG group, mainly driven by the higher incidence of repeat revascularization in the stent group...
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Accidente Cerebrovascular , Enfermedad de la Arteria Coronaria , Infarto del Miocardio , Insuficiencia Renal , Revascularización Miocárdica , Stents , Tasa de SupervivenciaRESUMEN
OBJECTIVE: Human papillomavirus type 16 (HPV 16) has several intratypic variants, and some are associated with enhanced oncogenic potential. For risk determination as well as for future vaccine development, knowledge about variants is important. Regarding the geographical distribution of HPV variants and the lack of data from Indonesia and Suriname, we studied the prevalence of HPV 16 variants in cervical cancer in these high incidence countries. Data were compared with The Netherlands, a low-risk country. METHODS: DNA samples from 74 formalin-fixed paraffin-embedded HPV 16-positive cervical carcinomas from Indonesia (Java, N = 22), Suriname (N = 25), and The Netherlands (N = 27) were amplified using primers specific for the E6, E7, and part of the L1 regions. Products were sequenced and analyzed. RESULTS: A specific Javanese variant, with mutations 666A in E7 and 6826T in L1, was found in 73% of the Indonesian samples, 56% having an additional mutation in the E6 open reading frame (ORF; 276G), giving the predicted amino acid change N58S. This Javanese variant was also found in three Surinamese samples, which reflects what could be expected from migration of Javanese people to Surinam. Other non-European variants were identified in Indonesian, Surinamese, and Dutch samples in 14%, 28%, and 19%, respectively. CONCLUSION: The majority of the HPV 16-positive cervical cancers in Indonesia are caused by a specific intratypic variant that was rarely found before in other countries.