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Recurrent renal cell carcinoma leading to a misdiagnosis of polycystic liver disease: A case report

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World Journal of Gastroenterology 2019年第18期25卷 2264-2270页

作者： Chen Liang kazuhiro Takahashi Masanao Kurata Shingo Sakashita Tatsuya Oda Nobuhiro Ohkohchi Department of Surgery University of Tsukuba Department of Diagnostic Pathology University of Tsukuba

BACKGROUND Polycystic liver disease(PCLD) with a large cystic volume deteriorates the quality of life of patients through substantial effects on the adjacent organs,recurrent cyst infections, cyst rupture, and hemorrhage. Surgical or radiological intervention is usually needed to alleviate these symptoms. We report a rare case of the cystic metastasis of renal cell carcinoma(RCC), which was misdiagnosed as PCLD, as a result of the clinical and radiological similarity between these *** SUMMARY A 74-year-old female who had undergone nephrectomy for papillary-type RCC(PRCC) was suffering from abdominal pain and the recurrent intracystic hemorrhage of multiple cysts in the liver. Imaging studies and aspiration cytology of the cysts showed no evidence of malignancy. With a diagnosis of autosomal dominant polycystic liver disease, the patient received hepatectomy for the purpose of mass reduction and infectious cyst removal. Surgery was performed without complications, and the patient was discharged on postoperative day 14. Postoperatively, the pathology revealed a diagnosis of recurrent PRCC with cystic *** This case demonstrates the importance of excluding the cystic metastasis of a cancer when liver cysts are observed.

关键词： Polycystic liver disease Polycystic kidney disease Cystic metastasis Renal cell carcinoma Case report

Dietary habits and behaviors associated with nonalcoholic fatty liver disease

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World Journal of Gastroenterology 2014年第7期20卷 1756-1767页

作者： Kenichiro Yasutake Motoyuki Kohjima kazuhiro Kotoh Manabu Nakashima Makoto Nakamuta Munechika Enjoji Department of Health and Nutrition Sciences Faculty of Health and Social Welfare SciencesNishikyushu UniversityKanzaki 842-8585Japan Department of Gastroenterology and Clinical Research Center Kyushu Medical CenterNational Hospital OrganizationFukuoka 810-8563Japan Department of Hepatology and Pancreatology Kyushu University HospitalFukuoka 812-8582Japan Faculty of Pharmaceutical Sciences Fukuoka UniversityFukuoka 814-0180Japan Health Care Center Fukuoka UniversityFukuoka 814-0180Japan

Nonalcoholic fatty liver disease(NAFLD)is one of the most frequent causes of health problems in Western(industrialized)***,the incidence of infantile NAFLD is increasing,with some of these patients progressing to nonalcoholic *** trends depend on dietary habits and *** particular,overeating and its associated obesity affect the development of *** problems in patients with NAFLD include excess intake of energy,carbohydrates,and lipids,and shortages of polyunsaturated fatty acids,vitamins,and *** nutritional therapeutic approaches are required for prophylaxis and treatment of NAFLD,continuous nutrition therapy is difficult for many patients because of their dietary habits and lifestyle,and because the motivation for treatment differs among ***,it is necessary to assess the nutritional background and to identify nutritional problems in each patient with *** assessing dietary habits,it is important to individually evaluate those that are consumed excessively or insufficiently,as well as inappropriate eating *** nutrition therapy requires patient education,based on assessments of individual nutrients,and continuing the *** this article,we update knowledge about NAFLD,review the important aspects of nutritional assessment targeting treatment success,and present some concrete nutritional care plans which can be applied generally.

关键词： Nonalcoholic fatty liver disease Nutritional therapy Carbohydrates Fatty acids Cholesterol

The anti-oncogenic effect of 17-DMAG via the inactivation of HSP90 and MET pathway in osteosarcoma cells

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Oncology Research 2023年第5期31卷 631-643页

作者： MASANORI KAWANO kazuhiro TANAKA ICHIRO ITONAGA TATSUYA IWASAKI YUTA KUBOTA HIROSHI TSUMURA Department of Orthopaedic Surgery Faculty of MedicineOita UniversityOita879-5593Japan

Heat shock protein(HSP)90 plays a crucial role in correcting the misfolded three-dimensional structure of proteins,assisting them in folding into proper ***90 is critical in maintaining the normal functions of various proteins within cells,as essential factors for cellular ***,HSP90 simultaneously supports the maturation of cancer-related proteins,including mesenchymal epithelial transition factor(MET)within tumor *** osteosarcoma cell lines had elevated MET expression in the cDNA array in our ***,a tyrosine kinase receptor,promotes proliferation and an anti-apoptotic state through the activation of the MET pathway constructed by *** this study,we treated osteosarcoma cells with an HSP90 inhibitor,17-demethoxygeldanamycin hydrochloride(17-DMAG),and assessed the changes in the MET signaling pathway and also the antitumor effect of the *** cell cycle in osteosarcoma cells administered 17-DMAG was found to be halted at the G2/M ***,treatment with 17-DMAG inhibited cell proliferation and induced *** of tumor cell proliferation was also observed in an in vivo model system,mice that were treated with *** on the results of this study,we were able to confirm that 17-DMAG promotes inhibition of osteosarcoma cell proliferation and induction of apoptosis by inhibition of MET,a protein highly expressed in osteosarcoma *** approach may be useful for the establishment of a new treatment strategy for patients resistant to the standard treatment for osteosarcoma.

关键词： Osteosarcoma MET HSP90 17-DMAG

Optimal interval for delayed retrieval surgery with reciprocating morcellators after enucleation of giant prostatic hyperplasia in holmium laser enucleation of the prostate

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Asian Journal of Urology 2024年第3期11卷 423-428页

作者： Fumiyasu Endo Masaki Shimbo Kenji Komatsu kazuhiro Ohwaki Kazunori Hattori Department of Urology St.Luke’s International Hospital9-1 Akashi-choChuo-kuTokyoJapan Department of Hygiene and Public Health Teikyo University School of Medicine Graduate School of Medicine2-11-1 KagaItabashi-kuTokyoJapan

Objective:The aim of this research was to evaluate the efficiency of reciprocating morcellation for removing giant benign prostatic hyperplasia during holmium laser enucleation of the prostate,investigate whether performing morcellation as a two-stage procedure improves tissue retrieval efficiency,and seek to determine the optimal interval between the two ***:This study included nine cases of holmium laser enucleation of the prostate with an enucleated prostate weight exceeding 200 g,indicative of substantial prostate *** was performed on Day 0(n=4),Day 4(n=1),Day 6(n=1),and Day 7(n=3).The intervals were compared regarding the morcellation efficiency,beach ball presence,and ***:The mean estimated prostate volume was 383(range 330e528)mL;the median enucleation weight was 252(interquartile range[IQR]222,342)g;and the median enucleation time was 83(IQR 62,100)*** mean morcellation efficiency was 1.44(SD 0.55)g/min on Day 0 and 13.69(SD 2.46)g/min on day *** morcellation efficiency was 4.15 g/min and 10.50 g/min on Day 4 and Day 6,respectively,with significantly higher in the two-stage group compared to one-stage group(11.0 g/min vs.1.5 g/min;p=0.014).Efficiency was strongly correlated with intervals(p<0.001);the incidences of beach balls were 100%(4/4)and 60%(3/5)in the immediate and two-stage surgery groups,***:The efficiency of two-stage morcellation with reciprocating morcellators was highly related to the postoperative interval,with the maximum efficiency reached on Day 7.

关键词： Holmium laser enucleation of the prostate Reciprocating morcellator Giant adenoma Two-stage surgery

Long-term lamivudine treatment for chronic,hepatitis B in Japanese patients:A project of Kyushu University Liver Disease Study

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World Journal of Gastroenterology 2006年第4期12卷 561-567页

作者： Norihiro Furusyo Hiroaki Takeoka kazuhiro Toyoda Masayuki Murata Yuichi Tanabe Eiji Kajiwara Junya Shimono Akihide Masumoto Toshihiro Maruyama Hideyuki Nomura Makoto Nakamuta kazuhiro Takahashi Shinji Shimoda Koichi Azuma Hironori Sakai Jun Hayashi Department of General Medicine Kyushu University Hospital Department of Environmental Medicine and Infectious Diseases Graduate School of Medical Sciences. Kyushu University Fukuoka Japan Department of Medicine Fukuoka City HospitalFukuoka Japan Department of Internal Medicine Nippon SteelYawata Memorial Hospital Kitakyushu Japan Department of Medicine Yahata SaiseikaiHospital Kitakyushu Japan Department of Clinical Research NationalHospital Organization Kokura Hospital Kitakyushu Japan Department of Medicine KitakyushuMunicipal Medical Center Kitakyushu Japan Department of Internal Medicine ShinKokura Hospital Kitakyushu Japan Department of Medicine and Bioregulatory Science Graduate School of Medical Sciences Kyushu University Fukuoka Japan Department of Medicine HamanomachiHospital Fukuoka Japan Department of Medicine and Biosystemic Science Graduate School of Medical Sciences Kyushu University Fukuoka Japan Department of Medicine and Clinical Science Graduate School of Medical Sciences Kyushu University Fukuoka Japan Department of Gastroenterology National Hospital Organization Kyushu Medical Center Fukuoka Japan

AIM： To determine the efficacy of long-term lamivudine treatment of a large number of Japanese patients with chronic hepatitis B. METHODS： In this retrospective, multi-center trial, 318 Japanese patients with chronic hepatitis B received 100 mg of lamivudine daily for up to 36 （median 21） mo. Virological response was a decline to a serum HBV DNA level less than 3.7 log copies/mL. Virological breakthrough was defined as the reappearance of a serum HBV DNA level to more than 10-fold the minimum during treatment. RESULTS： Lamivudine produced virological response in 86.8% of the 318 patients at 6 mo, in 80.2% of 252 patients at 12 mo, in 69.2% of 133 patients at 24 mo, and in 53.6% of 28 patients at 36 mo. Forward stepwise logistic regression analysis showed an HBV DNA level less than 6.8 log copies/mL （P〈 0.0001）, HBeAg negativity （P〈 0.0001）, a platelet count of 100×10^9/L or more （P= 0.0162） at baseline, and a decline of the HBV DNA level of more than 3.2 log copies/mL as compared with the baseline level at 3 mo after the start of treatment （P= 0.0003） to be significantly associated with virological response. Among patients with a virological response, virological breakthrough was seen in 5.3% of 19 patients who responded virologically at 1 mo, in 20.7% of 203 patients at 3 mo, in 27.5% of 51 patients at 6 mo, in 33.3% of 12 patients at 9 mo, and in 100% of 3 patients at ≥15 mo. A virological breakthrough was found significantly more often in patients with delayed virological response. CONCLUSION： Lamivudine treatment could suppress serum HBV DNA in most of the tested Japanese patients. Long-term efficacy might be seen in patients without HBeAg at baseline, in the absence of cirrhosis, and in patients with a decline in HBV DNA level soon after the start of treatment.

关键词： Hepatitis B virus Lamivudine HBeAg Cirrhosis

In Vivo Investigation of Zr-Based Bulk Metallic Glasses Sub-Periosteally Implanted on the Bone Surface

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Journal of Materials Science and Chemical Engineering 2016年第1期4卷 46-51页

作者： kazuhiro Imai Department of Life Sciences Graduate School of Arts and Sciences The University of Tokyo Tokyo Japan

Bulk metallic glasses (BMG) show higher strength and lower Young’s modulus than SUS 316L stainless steel and Ti-6Al-4V alloys. This study aimed to investigate the reaction of Zr-based BMG sub-periosteally implanted on the surface of the rat femur, thereby evaluate the possibility of the BMG as biomaterials for osteosynthetic devices. Zr65Al7.5Ni10Cu17.5 BMG ribbons with 10 mm length, 2 mm width and 0.5 mm thickness were implanted sub-periosteally on the femur surface in three male Wistar rats for 6 weeks. Systemic effects were evaluated by measuring Cu and Ni levels in the blood, and local effects were evaluated by the histological observation of the surrounding soft tissues in contact with the BMG. The reaction of the surface of the BMG was examined with scanning electron microscopy. No increase of Cu and Ni levels in the blood was recognized. In the scanning electron microscopy observation, spherical deposits which were considered as sodium chloride crystals were observed. Neither breakage nor pitting corrosion was noted. BMG will be a promising metallic biomaterial for osteosynthetic device that must be removed.

关键词： Amorphous Alloy Bulk Metallic Glasses Biomaterial Osteosynthetic Device

High relative fat-free mass is important for maintaining serum albumin levels in patients with compensated liver cirrhosis

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World Journal of Gastroenterology 2005年第9期11卷 1356-1360页

作者： kazuhiro Kotoh Makoto Nakamuta Marie Fukushima Chitose Matsuzaki Munechika Enjoji Hironori Sakai Hajime Nawata Department of Medicine and Bioregulatory Science Department of Gastroenterology

AIM: In patients with liver cirrhosis, hypoalbuminemia causes edema and ascites, and a reduction in the quality of life. Since musculature is catabolized to supply amino acids for albumin synthesis in malnutritional cirrhotic patients, muscular volume is hypothesized to play an important role in albumin production. Therefore, we investigated the correlation between serum albumin levels and the fat-free mass (FFM) in cirrhotic ***: Fifty-seven patients (26 males and 31 females)with compensated liver cirrhosis were evaluated. Patients with edema or ascites were excluded from the *** volunteers (n = 104; 48 males and 56 females)were also evaluated as controls. FFM was measured using 5-500 kHz multifrequency bioelectric impedance *** minimize the difference in FFM distribution between males and females, we introduced a new marker, relative FFM (rFFM), which represents the ratio of FFM in a patient relative to that in a volunteer of the same height. Following FFM measurement, the serum albumin levels of patients were assayed ***: In patients with active cirrhosis (alanine aminotransaminase [ALT] ＞50 U/L), both albumin (the difference between maximum and minimum levels) and the standard deviation of albumin levels (SD-albumin) during the observation period showed a significant correlation with rFFM. Multiple linear regression analysis using variables such as rFFM, platelet number, and serum cholesterol levels,choline esterase, albumin, bilirubin, and ALT revealed that rFFM and ALT were significant and independent factors that influenced albumin or SD-albumin in cirrhotic ***: Our results indicate that cirrhotic patients with high rFFM showed less of a decrease in albumin levels, and that the muscle volume is one of the most important factors for maintaining serum albumins level in active cirrhosis. Exercise and protein-rich nutrition at the early stage of liver cirrhosis may be advisable for maintaining or increas

关键词： Muscular volume Fat-free mass (FFM) Multifrequency bioelectric impedance analysis Albumin Liver cirrhosis

Re-evaluation of antitumor effects of combination chemotherapy with interferon-α and 5-fluorouracil for advanced hepatocellular carcinoma

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World Journal of Gastroenterology 2005年第36期11卷 5685-5687页

作者： Munechika Enjoji Shusuke Morizono kazuhiro Kotoh Motoyuki Kohjima Yuzuru Miyagi Tsuyoshi Yoshimoto Makoto Nakamuta Department of Medicine and Bioregulatory Science Graduate School of Medical Sciences Kyushu University Fukuoka Japan

AIM： To evaluate the efficacy of combination chemotherapy with interferon-α （IFNα） and 5-fluorouracil （5-FU） in patients with advanced hepatocellular carcinoma （HCC）. METHODS： Twenty-eight HCC patients in advanced stage were enrolled in the study. They were treated with IFNα/ 5-FU combination chemotherapy. One cycle of therapy lasted for 4 wk. IFNα （3×10^6 units） was subcutaneously injected thrice weekly on days 1, 3, and 5 for 3 wk, and 5-FU （500 mg/d） was administered via the proper hepatic artery for 5 consecutive days per week for 3 wk. No drugs were administered during the 4th wk. The effect of combination chemotherapy was evaluated in each patient alter every cycle based on the reduction of tumor volume. RESULTS： Alter the 1^st cycle of therapy, 16 patients showed a partial response （PR, 57.1%） but none showed a complete response （CR, 0%）. At the end of therapy, the number of patients who showed a CR, PR, or no response （NR） was 1, 10, and 17, respectively. The response rate for therapy （CR＋PR） was 21.5%. Biochemical tests before therapy were compared between responsive （CR＋PR） and non-responsive （NR） patients, but no significant differences were found for any of the parameters examined, indicating that no reasonable predictors could be identified in our analysis. CONCLUSION： Attempts should be made to discriminate between responders and non-responders by evaluating tumor size alter the first cycle of IFNα/5-FU combination chemotherapy. For non-responders, therapy should not proceed to the next cycle, and instead, different combination of anticancer drugs should be explored. 2005 The WJG Press and Elsevier Inc. All rights reserved

关键词： Interferon-α 5-Fluorouracil Hepatocellular carcinoma Chemotherapy

Impairment of IFN-a production capacity in patients with hepatitis C virus and the risk of the development of hepatocellular carcinoma

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World Journal of Gastroenterology 2005年第46期11卷 7330-7334页

作者： Kazuko Uno Yoshiki Suginoshita kazuhiro Kakimi Fuminori Moriyasu Mayumi Hirosaki Taro Shirakawa Tsunataro Kishida Louis Pasteur Center for Medical ResearchKyoto Japan Department of Gastroenterology and HepatologyFaculty of Medicine Kyoto UniversityKyotoJapan Department of Health Promotion and Human BehaviorKyoto University Graduate School of Public Health KyotoJapan

AIM: To determine the utility of interferon (IFN) -αproduction capacity in patients with hepatitis C virus (HCV) infection for the measurement of immunosurveillance potential and for the early detection of hepatocellular carcinoma (HCC) by investigating the Sendai virus (HVJ) stimulated IFN-α production capacity of patients with HCV ***: HVJ stimulated IFN-α production was determined in a large number of patients with HCV infection and the development of HCC was monitored for 3 years in patients with liver cirrhosis (LC).RESULTS: IFN-α production capacity decreases gradually with the progression of liver disease from chronic hepatitis (CH) to HCC. A significant correlation between the duration of HCV infection and impaired IFN-α production capacity was observed. IFN-α production in patients who developed HCC within 3 years was significantly lower than that of patients who remained in LC without developing ***: Measurement of IFN-α production in LC patients may be useful for the early detection of HCC.

关键词： IFN-α production capacity Hepatitis C virus Hepatocellular carcinoma