• Asian Pacific Journal of Cancer Prevention
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• 제16권9호
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• pp.3709-3713
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• 2015

Background: Many factors, including molecular ones, were demonstrated to be associated with long-term prognosis of hepatocellular carcinoma (HCC). Thus far, the expression and clinicopathologic and prognostic significance of the carboxyl terminus of Hsp70-interacting protein (CHIP) in B-type hepatitis virus (HBV)-related HCC remain unknown. Materials and Methods: CHIP expression was detected by immunohistochemical staining of surgical samples from 79 patients with HCC with HBsAg positivity. In addition, correlations with clinicopathologic parameters and patient survival were evaluated. Results: It was found that positive CHIP staining was observed in tumor, but not non-tumor, tissues. High expression of CHIP was significantly related to larger tumor size, with marginally significant associations noted for presence of portal vein invasion and higher serum a-fetoprotein level. In addition, univariate analysis showed that high CHIP expression was a powerful predictor for dismal overall and disease-free survival. However, independent prognostic implications of CHIP were not proven in multivariate Cox regression test. Conclusions: CHIP is overexpressed in HBV-related HCC and is associated with unfavorable biological behavior as well as poor prognosis. However, its prognostic role needs to be further validated.

• Asian Pacific Journal of Cancer Prevention
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• 제13권8호
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• pp.3663-3667
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• 2012

The hepatitis B virus (HBV) and the hepatitis C virus (HCV) are still public health problems in Yemen, with older individuals having much higher prevalence than younger generations. However, research on the prevalence of viral hepatitis in association with hepatocellular cancer (HCC) has not yet been undertaken in Yemen. The aim of this study was to determine the prevalence of HBV and HCV infection among HCC patients and to estimate the risk of these infections being associated with the development of HCC. A cross-sectional study was conducted on patients attending oncology outpatient in Sana'a, Yemen, through the period 2008-mid 2010 with confirmed diagnosis of HCC. A total of 88 cases were studied thoroughly with different investigations such as CT-scan, ultrasound, tumour marker, alpha-feto-protein and histopathological biopsy. A structured questionnaire was also applied and physical examination done to assess the general condition of the patients. Statistical package (SPSS version 16) was used for analysis of the data. The mean age of the cases was 61.2 years (${\pm}12.6$) with half over 60 years. There were fewer male patients (36%) compared to females and most (97%) only had basic /no formal education. Seventy nine (89%) were diagnosed as HCC cases with histopathological biopsy while the rest were diagnosed by ultrasound, CT scan, tumour marker, and alpha-feto-protein. Around one-third of the subjects were positive for HBsAg and HCV antibodies. Multivariate analysis showed infection with HCV and use of smoking was associated with HCC diagnosis. Although an association was observed between the occurrence of HCC and viral hepatitis (either HBV or HCV) and cigarette smoking, but the rate of viral infection was lower than what has been reported elsewhere.

• Asian Pacific Journal of Cancer Prevention
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• 제14권11호
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• pp.6601-6604
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• 2013

Aim: Associations between polymorphisms in miR-146aG>C, miR-196a2C>T and miR-499A>G and risk of HCC, and interaction with HBV infection in a Chinese population, were the target of the present research. Methods: The duplex polymerase-chain-reaction with confronting-two-pair primers (PCR-RFLP) was performed to determine the genotypes of the miR-146aG>C, miR-196a2C>T and miR-499A>G genotypes. Associations of polymorphisms with the risk of HCC were estimated by conditional logistic regression analysis. Results: Drinking, family history of cancer, HBsAg and HCV were risk factors for HCC. Multivariate regression analyses showed that subjects carrying the miR-196a2 CC genotype had significantly increased risk of HCC, with an adjusted OR (95% CI) of 2.18 (1.23-3.80). In addition, cases carrying the miR-196a2 C allele had a 1.64-fold increase in the risk for HCC (95%CI=1.03-2.49). The miR-196a2 CT and TT genotypes greatly significantly increased the risk of HCC in subjects with HBV infection, with adjusted ORs (95% CI) of 2.02 (1.12-3.68) and 2.69 (1.28-5.71), respectively. Conclusion: Our results demonstrate that miR-196a2 CC genotype and C allele have an important role in HCC risk in Chinese, especially in patients with HBV infection.

• Asian Pacific Journal of Cancer Prevention
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• 제15권20호
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• pp.8823-8828
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• 2014

Objective: To explore the most appropriate treatment for patients with hepatocellular cancer (HCC) >10 cm by using the Barcelona Clinic Liver Cancer (BCLC) classification. Materials and Methods: A total of 124 HCC patients undergoing surgery were selected. Disease-free survival (DFS), overall survival (OS) and prognostic factors were respectively assessed. Results: This study showed that the cumulative 1-, 3-, 5-year survival rates were 79.7%, 59.8% and 41.6% in BCLC-A patients, 76.2%, 9.5% and 0% in BCLC-B patients and 44.9%, 0% and 0% in BCLC-C patients, respectively. The 1-, 3-, 5-year DFS rates were 49%, 24.5% and 9.1% in BCLC-A patients, 7.5%, 0% and 0% in BCLC-B patients, respectively. No BCLC-C patients survived 1 year after surgery. Multivariate analysis indicated that hepatitis B surface antigen (HBsAg), vascular invasion, intra-hepatic metastasis, curative resection, tumor rupture and pathologic differentiation were independent prognostic factors. Conclusions: Surgery is effective and safe for patients with HCC >10 cm with sufficient hepatic reserve.

• Asian Pacific Journal of Cancer Prevention
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• 제17권4호
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• pp.1705-1712
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• 2016

Background: The aim of this study was to determine and evaluate the association of different viral infections, with hepatitis B and C viruses, Epstein-Barr virus, cytomegalovirus and human herpes virus-8 (HBV, HCV, EBV, CMV, HHV-8) with the risk of lymphomas (Hodgkin and non-Hodgkin) among Egyptian patients, and correlate with the histopathological staging and typing as well as the prevalence of combined infections. Materials and Methods: A total of 100 newly diagnosed lymphoma patients with 100 healthy age and sex matched normal controls were assayed for viral infection using enzyme linked immunosorbant assay (ELISA) followed by real time polymerase chain reaction (RT-PCR). Results: Our results showed a high statistical significant difference between cases and controls as regards clinical and laboratory findings (P<0.001 and=0.003). A high statistical difference was seen for the association of most viruses and lymphoma cases (p<0.001) except for positive HBs Ag, positive CMV IgG and HHV-8 (p=0.37, 0.70 and 1.0 respectively). No statistical significant difference was found between Hodgkin (HL) and non-Hodgkin (NHL) as regards viral prevalence except HCV antigen, 57.1% for HL and 26.5% for NHL (p = 0.03). Only, HBV DNA showed a high significant value among infiltrated bone marrow cases (p=0.003) and finally, a high significant association of 2 combined viral infections with infiltrated bone marrow lymphoma cases (p=0.04). Conclusions: Our results showed that infection with HBV, HCV, CMV and EBV were associated with increased risk of lymphoma among the Egyptian population. Detection of new associations between infectious agents and risk of cancer development will facilitate progress in elaboration of prophylactic measures, early diagnostic methods and, hopefully, novel therapy of malignant tumours.

• Asian Pacific Journal of Cancer Prevention
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• 제13권5호
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• pp.1963-1969
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• 2012

Objectives: Recent data show that the metabolic syndrome may play a role in several cancers, but the etiology for biliary tract cancer is incompletely defined. The present aim was to evaluate risk factors for biliary tract cancer in China. Methods: A case-control study in which cases were biliary tract cancer patients referred to Peking Union Medical College Hospital (PUMCH). Controls were randomly selected from an existing database of healthy individuals at the Health Screening Center of PUMCH. Data on the metabolic syndrome, liver diseases, family history, and history of diabetes and hypertension were collected by retrospective review of the patients' records and health examination reports or by interview. Results: A total of 281 patients (102 intrahepatic cholangiocarcinoma (ICC), 86 extrahepatic cholangiocarcinoma (ECC) and 93 gallbladder carcinoma (GC)) and 835 age- and sex-matched controls were enrolled. $HBsAg^+/anti-HBc^+$ (P=0.002), history of diabetes (P=0.000), cholelithiasis (P=0.000), TC (P=0.003), and HDL (P=0.000) were significantly related to ICC. Cholelithiasis (P=0.000), Tri (P=0.001), LDL (P=0.000), diabetes (P=0.000), Apo A (P=0.000) and Apo B (P=0.012) were significantly associated with ECC. Diabetes (P=0.017), cholelithiasis (P=0.000) and Apo A (P=0.000) were strongly inversely correlated with GC. Conclusion: Cholelithiasis, HBV infection and metabolic symptoms may be potential risk factors for the development of biliary tract cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제17권7호
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• pp.3381-3384
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• 2016

Background: Hepatitis B virus (HBV) is a key factor for hepatocellular carcinoma (HCC). About 350 million people are affected by chronic infection which is related to the rapid development of liver diseases as well as hepatitis, cirrhosis and hepatocellular carcinoma. Expression of tumor necrosis factor alpha (TNF-${\alpha}$) in the liver demonstrates a major genetic polymorphism which is involved in resistance or susceptibility to chronic HBV infection. Materials and Methods: In this study, two populations were studied by the sequence specific primer-polymerase chain reaction (SSP-PCR) method: HBV cases (n=409), who were HBS-Ag+, and healthy controls (n=483). Results: The results shown that the frequency of TNF-${\alpha}$ -308 G/G genotype in healthy controls (47.2%) was significantly higher than in HBV infected patients (28%) (CI = 1.29-2.61, OR = 1.83, P = 0.0004). Also TNF-${\alpha}$ -308 A/A and A/G genotype frequencies in the healthy controls were 4.6% and 48.2% and in patient group were 19.5% and 52.5% (CI = 2.23-7.12, p: 0.0001, OR: 3.94) respectively. Conclusions: We found that among Iranian people TNF-${\alpha}$ -308A allele not only has the highest genotype frequency but also it has the highest frequency in the world population. In addition, TNF-${\alpha}$-308 G/G polymorphism was associated with HBV resistance, whereas TNF-${\alpha}$-308A (A/A or A/G) polymorphism appeared to associated with chronic HBV infection. These data suggested that among the Iranian population, the -308 G/G polymorphism of TNF-${\alpha}$ gene promoter region has the potential to influence the susceptibility to HBV infection and it may be responsible for viral antigen clearance.

• Journal of Preventive Medicine and Public Health
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• 제24권4호
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• pp.465-472
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• 1991

약물남용자들의 C형간염 감염 상태를 파악하고자 methamphetamine 남용에 의한 중독 증상으로 입원하고 있는 141명을 대상으로 하여 약물남용의 빈도와 기간, 약물 투여경로 등에 관한 조사와 함께 혈청내 C형간염 항체, B형간염 표식자 및 간기능 검사를 실시하고 이들 사이의 관련성을 검토하여 다음과 같은 결과를 얻었다. 1. C형간염 항체 양성률은 60.3%(85/141)이었으며 성별로는 차이가 없었으나 연령군별로는 40세 이상군에서 증가되는 경향이 있었다. 2. C형간염 항체의 양성률은 약물남용의 빈도가 높았던 군과 약물남용의 기간이 길었던 군에서 유의하게 높았으나 B형간염 표면항원의 양성률은 약물남용의 빈도 및 기간과 유의한 차이가 없었다. 이상의 결과로 보아 methamphetamine 남용자에서 C형간염 유병률은 매우 높을 것이며 감염 전파경로에 있어서 C형간염은 반복적인 경주적 폭로가 중요 전파 요인일 것으로 추측된다.

• KSBB Journal
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• 제9권3호
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• pp.253-265
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• 1994

혈청의 종류에 따른 하이브라도마 2c3.1세포의 성 장과 간염 표면 항원에 대한 단얼클론항체 생산에 미치는 영향을 조사하였다. 혈청은 fetal bovine s sera, newborn bovine calf sera, including supple m mented calf sera, horse serum, goat serum의 종류 를 사용하였다. 혈 청농도를 0.5%, 1.25%, 2.5%, 5%(v/v)로 변화시키고, 초기 세포농도를 $5{\times}10^4, 1{\times}10^5, 2{\times}10^5,$ cells/ml로 변화하여 현탁배양한 후 각각의 배지에서 하이브리도마 세포성장과 생산된 단일클론항체의 최대값을 비교하였다. 초기 세포농도를 $1{\times}10^5,$ cells/mlcells/ml로 일정하게 유지하였을 때 세포성장은 혈청의 종류에 관계없이 혈청농도의 증가와 밀접한 관련이 있었고, 혈청농도의 증가에 따른 서l포성장 증가로 인하여 항체 생산도 또한 증가되였 다. 5%의 혈청농도에셔 세포성장과 항체 생산은 초기 세포농도의 증가함에 따라 증가하였다. 같은 종 류의 혈청이라도 혈청 제조사에 따라 세포성장과 항 체 생산에 따른 영향을 끼침을 알았다. 이들 결과로 부터 하이브라도마 세포성장과 항체 생산을 증가하고 세포배양 비용을 줄일 수 있는 혈청의 종류와 농도를 결정하였다.

• Journal of Preventive Medicine and Public Health
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• 제29권4호
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• pp.801-814
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• 1996

연구배경 : 약물복용에 관한 엄격한 규제가 없는 국내 의료현실상, 각종 건강에 관련된 약물이 범람하고 있어 약물 오 남용에 따른 심각한 약물부작용의 발생 가능성이 클 것으로 추정된다. 이에 건강한 성인 남성에서 영양제, 한약을 포함한 자가약물복용에 따라 간 기능 장애를 유발하는지를 코호트 내 환자-대조군 연구로 알아보았다. 방법 : ' 서울코호트' 대상자 중 (1)1990년도 정기 건강검진의 혈청결과상 HBsAg이 음성이면서 AST, ALT 모두 40 IU/L 이하인 대상자 (2) 1990년도 입원진료청구 전산자료상 간질환을 포함한 각종 질병으로 수진받은 적이 없는 자 (3)설문서 응답내용상 1991년 한해 동안 각종 질병이 발생되어 해당 약물을 복용한 적이 없는 자 (4)1992년도 정기 건강검진상 종합소견이 정상이면서 혈청검사상 HBsAg 음성인 자로 국한하여 본 연구를 위한 새로운 코호트를 구축하였다. 2년간의 추적조사 결과 1992년도 검사치상 AST/ALT 모두 40 IU/L 이상이면서 1990년도 AST/ALT에 비하여 100%이상 상승한 경우를 '간효소치 상승군(case group)'으로 정하였고, 반대로 1992년도 검사치상 AST/ALT 모두 40 IU/L 미만이면서 1990년도 ALT/ALT 에 비하여 상승 정도가 100% 미만인 경우를 '대조군(control group)'으로 하여, 약물복용과의 관련성을 카이자승법과 로지스틱 회귀법으로 알아보았다. 결과 : '간기능치 상승군(n=30)'은 대조군(n=2,625)' 에 비하여 44세 이하가 많았고, 경제수준이 높았으며 보다 비만하였으나 교육수준, 직업, 가족력, 수술력, 방사선 촬영력, 침구이용력, 흡연 및 음주습관에서 차이가 없었다. 약물복용에 있어서는 간장제와 한약복용은 차이가 없었으나, 스쿠알렌, 알로에 등의 건강보조식품 복용력은 '간기능치 상승군'에서 유의하게 많았다. 단변수 분석에서 유의성을 보인 변수들을 보정하여 보았을 때도 건강보조식품 복용력은 여전히 통계적 유의성을 잃지 않았다. 결론 : 본 연구결과는 건강인이라 하더라도 '건강보조식품'의 임의 복용은 간기능 장애를 유발할 가능성이 있다고 보아진다. 따라서 현재 '건강보조식품'의 사용이 급증하는 추세 속에서 치료제가 아닌 보조식품으로써의 '건강보조식품'이라 하더라도 장기간 임의 복용에 따라 어떤 부작용이 얼마나 발생할 것인지에 대한 연구가 향후 이루어져야 할 것으로 판단된다.