• Asian Pacific Journal of Cancer Prevention
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• 제17권5호
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• pp.2655-2660
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• 2016

Background: Prostate cancer is the second most common male cancer and remains a leading cause of cancer death worldwide. Heterogeneity regarding recurrence, tumor progression and therapeutic response reflects the inadequacy of traditional prognostic factors and underlies interest in new genetic and molecular markers. In this work, we studied the prognostic value of the expression of 9 proteins, Ki-67, p53, Bcl-2, PSA, HER2, E-cadherin, $p21^{WAF1/Cip1}$, $p27^{Kip1}$ and $p16^{ink4a}$ in prostate cancer. Materials and Methods: We conducted a retrospective study of 50 prostate cancers diagnosed in Pathology Department of Farhet Hached Hospital, Sousse, Tunisia, during a period of 12 months. Clinico-pathological data and survival were investigated. Protein expression was analyzed by immunohistochemistry on archived material. Results: Expression or over-expression of Ki-67, p53, Bcl-2, PSA, HER2, E-Cadherin, $p21^{WAF1/Cip1}$, $p27^{Kip1}$ and $p16^{ink4a}$ was observed in 68%, 24%, 32%, 78%, 12%, 90%, 20%, 44% and 56% of cases, respectively. Overall five-year survival was 68%. A statistically significant correlation was observed between death occurrence and advanced age (p=0.018), degree of tumor differentiation (p=0.0001), perineural invasion (p=0.016) and metastasis occurrence (p=0.05). Death occurrence was significantly correlated with the expression of p53 (p=0.007), Bcl-2 (p=0.02), Ki-67 (p=0.05) and $p27^{Kip1}$ (p=0.04). Conclusions: The p53, Bcl-2, Ki-67 and $p27^{Kip1}$ proteins may be useful additional prognostic markers for prostate cancer. The use of these proteins in clinical practice can improve prognosis prediction, disease screening and treatment response of prostatic cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제16권3호
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• pp.991-996
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• 2015

Side population (SP) cells have stem cell-like properties with a capacity for self-renewal and are resistant to chemotherapy and radiotherapy. Therefore the presence of SP cells in human breast cancer probably has prognostic value. Objective: To investigate the characteristics of SP cells and identify the relationship between the SP cells levels and clinico-pathological parameters of the breast tumor and disease-free survival (DFS) in breast cancer patients. Materials and Methods: A total of 122 eligible breast cancer patients were consecutively recruited from January 1, 2006 to December 31, 2007 at Yunnan Tumor Hospital. All eligible subjects received conventional treatment and were followed up for seven years. Predictors of recurrence and/or metastasis and DFS were analyzed using Cox regression analysis. Human breast cancer cells were also obtained from fresh human breast cancer tissue and cultured by the nucleic acid dye Hoechst33342 with Verapami. Flow cytometry (FCM) was employed to isolate the cells of SP and non-SP types. Results: In this study, SP cells were identified using flow cytometric analysis with Hoechst 33342 dye efflux. Adjusted for age, tumor size, lymph nodal status, histological grade, the Cox model showed a higher risk of recurrence and/or metastasis positively associated with the SP cell level (1.75, 1.02-2.98), as well as with axillary lymph node metastasis (2.99, 1.76-5.09), pathology invasiveness type (1.7, 1.14-2.55), and tumor volume doubling time (TVDT) (1.54, 1.01-2.36). Conclusions: The SP cell level is independently associated with tumor progression and clinical outcome after controlling for other pathological factors. The axillary lymph node status, TVDT and the status of non-invasive or invasive tumor independently predict the prognosis of breast cancer.

• Asian Pacific Journal of Cancer Prevention
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• 제16권3호
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• pp.1277-1280
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• 2015

Aim: To report epidemiologic and anatomoclinical transitions of inflammatory breast cancer (IBC) in Tunisia. Materials and Methods: Data including clinico-pathological data for 208 cases of T4d or PEV 3 non-metastatic breast cancer diagnosed between 2005 and 2010 were collected from patient records. Chi2 and Z tests were used to compare variables with two Tunisian historical series and a series about Arab-American patients. Results: Thirty three percent of our patients had their first child before 23 years of age and 56% had their menarche before 12 years, 75% never receiving oral contraception. Obesity was observed in 42% of women and IBC occurred during pregnancy in 13% of cases. Tumor grade was II-III in 90% of cases, HR was negative in 52%, HER2 was over expressed in 31% and invasion of more than 3 axillary nodes occurred in 18% of patients. We observed a pCR rate of 19% after neoadjuvant treatment (anthracyline-taxane used in 79%, trastuzumab in 27% ). Compared to historical Tunisian series (since 1996), IBC epidemiology remained stable in terms of median age, menopausal status and obesity. However we observed a significant decrease in median clinical tumor size and number of positive axillary lymph nodes. Comparison to IBC in Arab-Americans showed a significant difference in terms of median age, menopausal status, positivity of hormonal receptors and educational level. Conclusions: Our assessment of epidemiologic transition showed a reduction of clinco-pathological stage of IBC, keeping the same characteristics as compared to Tunisian historical series over a period of 14 years. Features seem to be different in Arab-American patients, probably related to migration, "occidentalization" of life style and improvement in socio-economic level.

• Clinical and Experimental Pediatrics
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• 제48권2호
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• pp.174-177
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• 2005

목 적 : HSP로 진단된 환아들에서 역학, 임상양상 및 경과를 알아보고자 하였다. 방 법 : 1987년 1월부터 2003년 12월까지 가톨릭대학교 대전 성모병원에 입원하여 HSP로 진단받은 424명의 환아를 대상으로 환아의 의무기록을 통해 임상 양상 및 역학적 지표들을 조사 분석하였다. 결 과 : 연간 평균 발생 수는 $25.1{\pm}7.9$명이었고, 연도별 발생은 일정한 주기를 보이지 않았다. 일년을 통해 지속적인 발생이 있었으나 하절기에 발생이 적었다. 남녀비는 1.3 : 1이었고, 평균 연령은 6.6세이었다. 연령분포는 4-6세를 정점으로 종형의 분포를 보였고 92.7%의 환아가 2-11세 사이에 발생하였다. 임상 증상으로 자반은 100%, 위장 증상이 53.8%, 관절 증상 40.8%, 신장 증상이 18.9%에서 나타났으며, 신증후군은 1%의 환아에서 관찰되었다. 결 론 : 이번 연구에서의 HSP의 임상 및 역학적 특성은 시대적인 변화 없이 미국을 비롯한 외국과 국내의 이전 보고들과 거의 유사하였다.

• Asian Pacific Journal of Cancer Prevention
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• 제15권5호
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• pp.2201-2204
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• 2014

Russian rates for melanoma incidence and mortality are relatively low as compared to some other white populations but the tumor is of increasing importance. In this paper, data are based on a retrospective descriptive analysis of melanoma epidemiology and clinicopathological characteristics in Krasnoyarsk Territory belonging to the Siberian Federal District of the Russian Federation. The age-adjusted incidence and mortality rates for the period 1996-2009 were determined with subsequent retrospective analysis of clinicopathological data of 103 primary melanoma cases. Our results showed that incidence and mortality rates in the region under consideration match the Russian national trends and correspond to epidemiological data of the countries of Eastern Europe. Stratification of melanoma cases by age, sex, clinicopathological state and localization revealed a prevalence of lesions on the trunk and lower extremities. Most melanomas diagnosed were of superficial spreading type and the third Clark's level of tumor invasion and stage II according to AJCC. In spite of comparatively low rates of incidence and mortality the trend to increase of melanoma cases in the region under consideration obviously calls for more attention and further investigation.

• Parasites, Hosts and Diseases
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• 제57권4호
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• pp.341-357
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• 2019

Acanthamoeba, one of free-living amoebae (FLA), remains a high risk of direct contact with this protozoan parasite which is ubiquitous in nature and man-made environment. This pathogenic FLA can cause sight-threatening amoebic keratitis (AK) and fatal granulomatous amoebic encephalitis (GAE) though these cases may not commonly be reported in our clinical settings. Acanthamoeba has been detected from different environmental sources namely; soil, water, hotspring, swimming pool, air-conditioner, or contact lens storage cases. The identification of Acanthamoeba is based on morphological appearance and molecular techniques using PCR and DNA sequencing for clinico-epidemiological purposes. Recent treatments have long been ineffective against Acanthamoeba cyst, novel anti-Acanthamoeba agents have therefore been extensively investigated. There are efforts to utilize synthetic chemicals, lead compounds from medicinal plant extracts, and animal products to combat Acanthamoeba infection. Applied nanotechnology, an advanced technology, has shown to enhance the anti-Acanthamoeba activity in the encapsulated nanoparticles leading to new therapeutic options. This review attempts to provide an overview of the available data and studies on the occurrence of pathogenic Acanthamoeba among the Association of Southeast Asian Nations (ASEAN) members with the aim of identifying some potential contributing factors such as distribution, demographic profile of the patients, possible source of the parasite, mode of transmission and treatment. Further, this review attempts to provide future direction for prevention and control of the Acanthamoeba infection.

• Asian Pacific Journal of Cancer Prevention
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• 제13권11호
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• pp.5433-5438
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• 2012

Background: Hepatocellular carcinoma (HCC) is a common and aggressive malignancy. Despite of the improvements in its treatment, HCC prognosis remains poor due to its recurrence after resection. This study provides complete genetic profile for Egyptian HCC. Genome-wide analyses were performed to identify the predictive signatures. Patients and Methods: Liver tissue was collected from 31 patients with diagnosis of HCC and gene expression levels in the tumours and their adjacent non-neoplastic tissues samples were studied by analyzing changes by microarray then correlate these with the clinico-pathological parameters. Genes were validated in an independent set by qPCR. The genomic profile was associated with genetic disorders and cancer focused on gene expression, cell cycle and cell death. Molecular profile analysis revealed cell cycle progression and arrest at G2/M, but progression to mitosis; unregulated DNA damage check-points, and apoptosis. Result: Nine hundred fifty eight transcripts out of the 25,000 studied cDNAs were differentially expressed; 503 were up-regulated and 455 were down-regulated. A total of 19 pathways were up-regulated through 27 genes and 13 pathways were down-regulated through 19 genes. Thirty-seven genes showed significant differences in their expression between HCC cases with high and low Alpha Feto Protein ($AFP{\geq}600$ IU/ml). The validation for the microarray was done by real time PCR assay in which PPP3CA, ATG-5, BACE genes showed down-regulation and ABCG2, RXRA, ELOVL2, CXR3 genes showed up-regulation. cDNA microarrays showed that among the major upregulated genes in HCC are sets. Conclusion: The identified genes could provide a panel of new diagnostic and prognostic aids for HCC.

• Asian Pacific Journal of Cancer Prevention
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• 제17권5호
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• pp.2439-2443
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• 2016

Purpose: To determine the risk factors, clinical symptoms and patterns of spread in laryngeal cancer. Materials and Methods: A cross sectional study was carried out in the Regional Cancer Centre, Imphal, Manipur, India. One hundred and sixteen patients with laryngeal cancer were retrospectively reviewed for epidemiological data and descriptive statistics were reported for various variables. Results: Median age at presentation was 65 years and 32.8% were undernourished at presentation. The male to female ratio was 5.4:1. Heavy smoking and tobacco chewing was associated in 91.4% and 33.6% of patients respectively. Tracheostomy was required in 21.5% leading to diagnosis of laryngeal cancer. Almost all were squamous cell carcinoma with neuroendocrine and verrucous carcinoma accounting for less than 2%. Supraglottic, glottic and trans-glottic tumors were 56.9%, 36.3% and 6.9% respectively. Nodal metastases were seen in 81.8% of supraglottic cancers and 31.6% of glottic cancers with supraglottic involvement. Level II neck nodes were the commonest site followed by level III. Distant metastases (only liver) were apparent in 1.7% at presentation. Including these liver metastases, unresectable cases were limited to 6% of the patients. Conclusions: Tobacco use is implicated in almost all of the cases and the sex ratio has also decreased due to increased female smokers. The supraglottis remains the commonest site and incidence of nodal metastases is higher than in other countries. There is also a higher requirement for tracheostomy at presentation in this region.

• Clinical and Experimental Pediatrics
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• 제48권2호
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• pp.154-157
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• 2005

목 적 : 1993년부터 2003년까지 발생한 마이코플라즈마 폐렴의 역학적 특성을 알아보고자 하였다. 방 법 : 1993-2003년, 11년 동안 가톨릭대학교 대전성모병원 소아과에 입원한 마이코플라즈마 폐렴 환아 559명을 대상으로 입원기록지를 후향적으로 분석하였다. 성별, 연령별, 연도별, 및 월별 발생에 대해 분석하였으며, 1994년과 2003년의 자료를 비교, 분석하였다. 결 과 : 연간 평균 환아 수는 51명이었으며, 1993-94년, 1997년, 2001년 및 2003년에 많은 환아가 발생하였다. 계절별 발생에서 가을(9-11월)에 233명(41.7%)으로 가장 많이 발생하였으며, 겨울 26.7%, 여름 19.0%, 봄 12.7%을 보였다. 남녀비는 1.2 : 1, 연령은 5-6세를 정점으로 3-8세 사이에 68.2%의 환아가 발생하였다. 1994년과 2003년 비교에서 최고 발생 연령군이 5-6세에서 3-4세로, 2세 미만 발생 환아 비율이 1.1%에서 26%로 최근 유행에서 어린 소아의 이환이 많았다. 1994년에서는 1월을 중심으로한 가을-겨울철 유행을, 2003년에서는 9월을 중심으로 한 여름-가을철 유행을 보였다. 결 론 : 최근 10년간 마이코플라즈마 폐렴의 양상은 2-4년 유행 주기를 보였으며, 전국적인 유행과 일치하였다. 또한 서구에 비해 더 어린 연령의 소아가 감염되고, 최대 발병 연령이 근자에 가까울수록 더 어려지는 경향을 보였다.

• Pediatric Infection and Vaccine
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• 제16권2호
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• pp.123-130
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• 2009

목 적: 원내 감염 로타바이러스 위장관염의 역학적 및 임상적 특성을 지역사회 획득 감염과 비교하고자 하였다. 방 법: 2001년 1월부터 2005년 12월까지 5년간 로타바이러스 위장관염으로 입원한 환아 들 중, 원내 감염군(100명)과 지역사회 획득 감염군(528명)의 역학적 특성을 비교하였다. 또한 지역사회 획득 감염군 중 연령을 일치시킨 100명을 대상으로 임상적 특성을 비교하였다. 결 과: 양군 간에서 남녀비는 1:4 및 1:5를 보였으며, 원내 감염군의 평균 연령이 지역사회 획득 감염군에 비해 더 낮았다 (21.9${\pm}$15.5개월 vs.16.6${\pm}$10.3개월, P <0.001). 연령별, 연도별 분포와 계절별 발생은 양군에서 비슷한 양상을 보였다. 5년간 연도별 발생 수에 대한 원내 감염 비율은 9.8-22.4 %를 보였으며, 원내 감염 발생 수는 2003년에, 지역사회획득 감염 발생 수는 2002년에 가장 많았다. 임상 양상 비교에서 원내 감염군에서 발열 기간이 길었으나(P<0.001), 설사 중등도에 서는 양군에서 차이가 없었다(P =0.07). 검사실 소견에서 원내 감염군의 백혈구 수가 더 높았으나(P =0.04), BUN의 평균값(P =0.02) 및 20 mg/dL 이상인 환아의 수(16% vs. 4%, P=0.01)는 지역사회 획득 감염군에서 더 많았다. 결 론: 원내 감염 로타바이러스 위장관염은 사회획득 감염 위장염과 비교하여 연령별, 연도별, 계절적 발생 양상 및 임상양상에서 유사하였다.