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Construction of In Vivo Fluorescent Imaging of Echinococcus granulosus in a Mouse Model

  • Wang, Sibo;Yang, Tao;Zhang, Xuyong;Xia, Jie;Guo, Jun;Wang, Xiaoyi;Hou, Jixue;Zhang, Hongwei;Chen, Xueling;Wu, Xiangwei
    • Parasites, Hosts and Diseases
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    • v.54 no.3
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    • pp.291-299
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    • 2016
  • Human hydatid disease (cystic echinococcosis, CE) is a chronic parasitic infection caused by the larval stage of the cestode Echinococcus granulosus. As the disease mainly affects the liver, approximately 70% of all identified CE cases are detected in this organ. Optical molecular imaging (OMI), a noninvasive imaging technique, has never been used in vivo with the specific molecular markers of CE. Thus, we aimed to construct an in vivo fluorescent imaging mouse model of CE to locate and quantify the presence of the parasites within the liver noninvasively. Drug-treated protoscolices were monitored after marking by JC-1 dye in in vitro and in vivo studies. This work describes for the first time the successful construction of an in vivo model of E. granulosus in a small living experimental animal to achieve dynamic monitoring and observation of multiple time points of the infection course. Using this model, we quantified and analyzed labeled protoscolices based on the intensities of their red and green fluorescence. Interestingly, the ratio of red to green fluorescence intensity not only revealed the location of protoscolices but also determined the viability of the parasites in vivo and in vivo tests. The noninvasive imaging model proposed in this work will be further studied for long-term detection and observation and may potentially be widely utilized in susceptibility testing and therapeutic effect evaluation.

Expression of N-Methylpurine-DNA Glycosylase Gene during Fetal Development and Adult in Mice (생쥐 태아 및 성체 조직에서의 N-Methylpurine-DNA Glycosylase 유전자의 발현)

  • Sohn, Tae-Jong;Kim, Nam-Keun;Lee, Sook-Hwan;Han, Sei-Yul;Ko, Jung-Jae;Park, Chan;Lee, Woo-Sik;Lee, Chan;Lee, Yong-Hee;Cha, Kwang-Yul
    • Development and Reproduction
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    • v.3 no.1
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    • pp.101-105
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    • 1999
  • N-Methylpurine-DNA glycosylase (MPG) removes N-methylpurine and other damaged purines in DNA. RT-PCR analysis revealed MPG mRNA expression at various tissues of fetal development from day 8 to day 18 fetus and day 400 mature adult. The MPG transcripts were abundant during fetal development in mice. In placenta, the MPG mRNA was continuously decreased from day 8 post coitum (p.c) to day 18 p.c. fetus. The high level of mRNA in fetal brain and liver was drastically declined in day 400 mature adult. The expression of MPG, originally characterized by its highest level of expression in the epididymis of adult mouse, was detected with high level in several other reproductive organ, including the ovary, oviduct, testis, vas deference, uterus, and seminal vesicles. These results demonstrate developmental stage- and tissue-specific variation of MPG gene expression.

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Prostate Cancer Epidemiology in a Rural Area of North Western Greece

  • Grivas, N.;Hastazeris, K.;Kafarakis, V.;Tsimaris, I.;Xousianitis, Z.;Makatsori, A.;Raptis, P.;Aspiotis, S.;Ioachim, E.;Ntemou, A.;Kitsiou, E.;Malamou-Mitsi, V.;Sofikitis, N.;Kordela, V.;Papandreou, C.;Agnantis, N.J.;Stavropoulos, N.E.
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.3
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    • pp.999-1002
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    • 2012
  • Epirus is a rural area of North-Western Greece. We reviewed data from 4 hospitals for 4.975 patients who underwent prostate biopsy in Epirus in the twelve year period from 1999 to 2010. Two six -year periods were compared (1999-2004 and 2004-2010). All cases of prostate cancer confirmed by biopsy were recorded and age-standardized incidence rates per 100,000 males were calculated. We also recorded the clinical stage for patients diagnosed in our hospital and correlated this with PSA and Gleason scores. Percentage of positive prostate biopsies was also calculated. There were a total of 1714 new cases during 1999-2010 and the mean annual age-adjusted incidence was 34/100.000. The mean incidences during 1999-2004 and 2005-2010 were 26/100,000 and 42/100,000, respectively. The mean age at diagnosis was 74. The most common Gleason score was 6 and the prevalent clinical stage was T2. Median PSA at diagnosis was 10.8 ng/ml. There was a significant difference between stage cT4 and all other stages regarding PSA value (p=0.000). A positive correlation was found between Gleason score and PSA (p=0.013). These results are in accordance with the incidence rise recorded in neighboring countries of South-East Europe. However we should keep in mind the risk of overdiagnosis and the detection of low-risk cancers that would not have caused morbidity or death during a man's lifetime anyway.

A STATISTICAL SURVEY OF DENTAL TREATMENT IN DISABLED PATIENTS (장애인의 치과치료에 관한 통계적 연구)

  • Rhee, Ye-Ri;Lee, Keung-Ho;Park, Jae-Hong;Choi, Sung-Chul;Kim, Kwang-Chul
    • The Journal of Korea Assosiation for Disability and Oral Health
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    • v.3 no.1
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    • pp.6-10
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    • 2007
  • Many disabled patients need extensive dental treatment because they have much difficulty in maintaining their oral hygiene. However, because they are not cooperative and not manageable, they require physical restraints, drug induced sedation or general anesthesia. General anesthesia is useful in control of the patients who cannot be treated in other ways. Additionally, general anesthesia provides more safe environment for medically compromised patients. The aim of the present study was to investigate a kind of disorder, sources of referral, preoperative oral condition, experience of dental visit, and performing general anesthesia or not of 930 disabled patients in Kyung-Hee University dental hospital for 30 years.

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GROWTH AND FEED UTILIZATION IN BLACK BENGAL GOATS ON ROAD SIDE GRASS BASED DIET SUPPLEMENT WITH FISH MEAL AND UREA MOLASSES BLOCK

  • Huq, M.A.;Akhter, S.;Hashem, M.A.;Howlider, M.A.R.;Saadullah, M.;Hossain, M.M.
    • Asian-Australasian Journal of Animal Sciences
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    • v.9 no.2
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    • pp.155-158
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    • 1996
  • Seventy two Black Bengal goats on road side grass based diet were fed on 0, 20, 40, 80, 100 or 120 g of fish meal (FM)/goat/day with or without ad libitum access to urea molasses block(UMB). The purpose was to assess the interaction of undegradable protein (UDP) and fermentable nitrogen(N) supplementation on feed intake, nutrient digestibility and growth of goats. Live weight gain of goats increased linearly with the increasing of dietary fish meal as an undegradable protein source. With the increasing level of fish meal the live weight gain(g/day) was 17, 23, 46, 48, 48 and 52 with urea molasses block and 12, 21, 31, 49, 47 and 47 without urea molasses block. It was concluded that the beneficial effects of urea molasses feeding to accelerate the dry matter intake, TDN intake and nutrient digestibility observed could not be exploited in terms of live weight gain.

miR-27a as an Oncogenic microRNA of Hepatitis B Virus-related Hepatocellular Carcinoma

  • Wu, Xin-Jun;Li, Yan;Liu, Dong;Zhao, Lun-De;Bai, Bin;Xue, Ming-Hui
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.2
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    • pp.885-889
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    • 2013
  • microRNAs (miRNAs) are small non-coding RNAs that regulate gene expression through post-transcriptional interactions with mRNA. miRNAs have recently emerged as key regulators of various cancers. Although miR-27a has been implicated in several other cancers, its role in hepatitis B virus-related hepatocellular carcinoma (HCC) is unknown. In this study, we showed miR-27a to be frequently up-regulated in HCC tissues and HCC cell lines (HepG2 and Huh7). Overexpression of miR-27a enhanced cell proliferation, promoted migration and invasion, and activated cell cycling in HepG2 and Huh7 cells. In summary, our results suggest that up-regulation of miR-27a may play an oncogenic role in the development of HCC and might thus be a new therapeutic target in HCC patients.

Complications in Total Thyroidectomy (갑상선 전절제의 합병증)

  • Han Gwang-Hee;Chin Hyung-Min;Park Woo-Bae;Kim Jun-Gi;Chun Chung-Soo
    • Korean Journal of Head & Neck Oncology
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    • v.10 no.2
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    • pp.106-111
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    • 1994
  • During a 9-year period(March 1985 to February 1994), 111 consecutive total thyroidectomies and modified or radical neck dissections were performed at 81. Vincent Hospital, Catholic University Medical College, for benign and malignant disease. There were three permanent complications, persistent hypoparathyroidism, in total thyroidectomies. Overall complications were observed 20(62.5%) in benign diseases, 47(59.5%) in malignancy. In benign and malignant thyroid diseases. the complications were transient hypoparathyroidisms (28.8%), transient hoarsenesses(21.6%), wound infections (3.6%), bleedings(3.6%), and permanent hypoparathyroidisms(2.7%). Our experience suggests that the morbidity of total thyroidectomy relates primarily to the extracapsular extension, necessitating en bloc exision accompanied by additional lymph node dissection. The low incidence of permanent complications in thyroid disease suggests the feasibility of total thyroidectomy as the operation of choice when surgeons are familiar with the technique and indications.

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The Status of Comprehensive Dental Treatment and Type of Disabilities of the Patients Treated under Outpatient General Anesthesia at the Clinic for the Disabled in Seoul National University Dental Hospital (서울대학교치과병원 장애인진료실에서 전신마취 하 치과치료를 받은 환자의 장애 질환 및 협진 현황 조사)

  • Jang, Ki-Taeg;Kim, Hyun-Jeong;Yum, Kwang-Won;Seo, Kwang-Suk
    • Journal of The Korean Dental Society of Anesthesiology
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    • v.6 no.2 s.11
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    • pp.82-88
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    • 2006
  • Background: The number of patients with disabilities who require general anesthesia for dental treatment is increasing. Methods: We reviewed the cases of 538 patients with disabilities who underwent outpatient general anesthesia for dental treatment at the clinic for the disabled in Seoul national university dental hospital according to the types of disabilities and comprehensive treatments. Results: The patients mean age was 17.4 years and fifty-eight percent of the patients had epilepsy, autism, mental retardation and cerebral palsy. About twenty-five percent of the patients were medically compromised such as brain disease, heart disease and genetic problem. In 142 cases, more than two dentists from the clinical departments systemically co-worked to provide the patients with comprehensive treatment as accurately and quickly as possible under general anesthesia. Conclusions: The number of medically compromised patients was high and the system of comprehensive dental treatment was well run.

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Prognostic Significance of Beclin-1 Expression in Colorectal Cancer: a Meta-analysis

  • Han, Ye;Xue, Xiao-Feng;Shen, Hu-Gang;Guo, Xiao-Bo;Wang, Xu;Yuan, Bin;Guo, Xing-Po;Kuang, Yu-Ting;Zhi, Qiao-Ming;Zhao, Hong
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.11
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    • pp.4583-4587
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    • 2014
  • Objective: Beclin-1 has recently been observed as an essential marker of autophagy in several cancers. However, the prognostic role of Beclin-1 in colorectal neoplasia remains controversial. Our study aimed to evaluate the potential association between Beclin-1 expression and the outcome of colorectal cancer patients. Materials and Methods: All related studies were systematically searched in Pubmed, Embase, Springer and Chinese National Knowledge Infrastructure databases (CNKI), and then a meta-analysis was performed to determine the association of Beclin-1 expression with clinical outcomes. Finally, a total of 6 articles were included in our analysis. Results: Our data showed that high Beclin-1 expression in patients with CRC was associated with poor prognosis in terms of tumor distant metastasis (OR=2.090, 95%CI=1.061-4.119, p=0.033) and overall survival (RR=1.422, 95%CI=1.032-1.959, p=0.031). However, we did not found any correlation between Beclin-1 over-expression and tumor differentiation (OR=1.711, 95%CI=0.920-3.183, p=0.090). In addition, there was no evidence of publication bias as suggested by Egger's tests for tumor distant metastasis (p=1.000), differentiation (p=1.000) and OS (p=0.308). Conclusions: Our present meta-analysis indicated that elevated Beclin-1 expression iss associated with tumor metastasis and a poor prognosis in patients with CRC. Beclin-1 might serve as an efficient prognostic indicator in CRC, and could be a new molecular target in CRC therapy.