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Design of the Saitama Cardiometabolic Disease and Organ Impairment Study (SCDOIS): A Multidisciplinary Observational Epidemiological Study

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Open Journal of Endocrine and Metabolic Diseases 2013年第2期3卷 144-156页

作者： Toshitaka Muneyuki Kaname Suwa Haruki Oshida Tomoya Takaoka Ayano Kutsuma Tsukasa Yoshida Masafumi Saito Yumiko Hori Yoshihiko Kannno eiichiro kanda Masafumi Kakei Shin-Ichi Momomura Kei Nakajima Division of Clinical Nutrition Department of Medical Dietetics Faculty of Pharmaceutical Sciences Josai University Sakado Japan

Background: In the past few decades, the incidence of cardiometabolic diseases and disorders of the liver, kidney, pancreas, heart, and lung, have been increasing in Western and Asian countries, including Japan. Numerous factors, including abnormal body weight (obesity, overweight, or underweight), infrequent exercise, and other unfavorable lifestyle factors (e.g., smoking and heavy alcohol drinking) have been proposed as risk factors for the development and the progression of diseases, such as type 2 diabetes, hypertension, and dyslipidemia, which ultimately lead to impaired organ function and possibly death. However, the mechanisms that link these risk factors with diseases are still poorly understood, and the potential treatments, including pharmacotherapy and diet, have not been fully evaluated. Methods: In 2011, we established a new collaborative research program, the Saitama Cardiometabolic Disease and Organ Impairment Study (SCDOIS). This multidisciplinary observational epidemiological research study was designed to cover several high-profile diseases and some traditional fields of internal medicine, as well as apparently unrelated fields and particular lifestyle factors, such as unhealthy eating behaviors. In a series of studies, apparently healthy subjects who underwent a regular medical checkup were retrospectively identified based on the results of their medical checkups. In this way, the incidence, prevalence, causality, and clinical relevance of specific conditions and diseases have been investigated in cross-sectional analyses of 100,000 - 200,000 adults, and in longitudinal studies of several thousand subjects who underwent medical checkups multiple times. Discussion: This article describes the background, rationale, purpose, and methods of the SCDOIS. Using data obtained from annual medical checkups, our goals are to 1) establish criteria or identify clinical features that would enable clinicians to detect the presence of abnormal conditions associat

关键词： Obesity Cardiometabolic Risks Organ Impairments Asians Diabetes Nutrition Saitama Checkup

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Usefulness of Newly Devised Clomiphene Citrate Administration Method Compared with the Conventional Method in Ovulation and Pregnancy

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Open Journal of Obstetrics and Gynecology 2024年第4期14卷 637-649页

作者： Makoto Kawamura Misaki Akiyama Remi Nakajima Eri Satoi Yoko Ogaki Rieko kanda Department of Obstetrics and Gynecology Kohseichuo General Hospital Tokyo Japan

Objective: Since not all women wish to conceive a child through aggressive treatment, we investigated the usefulness of modified repeated intracyclic clomiphene citrate (CC) therapy (repeated CC therapy) as a newly devised administration method. Methods: We evaluated the effects of CC administration on menstrual cycle length and retrospectively compared ovulation and pregnancy in 220 women who received CC at our hospital. Patients in the conventional method group received 50 mg per day for five days, starting on the fifth day of menstruation (withdrawal bleeding). Groups with and without menstrual cycle shortening after conventional CC administration were compared. The repeated CC therapy group was also compared with the non-shortened group. Repeated CC therapy was administered for the first five days as in the conventional method, and a second five-day repeat treatment was administered after an interval of five to seven days. Pregnancy rates, including indirect pregnancies, were evaluated by three different methods. Results: Ovulation and pregnancy rates were significantly better in the shortened group than in the non-shortened group (P < 0.001 and P = 0.010, respectively). Even in the non-shortened group, ovulation and pregnancy rates including indirect pregnancies were significantly improved when ovulation was observed with repeated CC therapy (P < 0.001 and P = 0.022, respectively). Conclusions: For patients whose menstrual cycle was not improved or shortened, repeated CC therapy as the newly devised CC administration method is useful as the next step after the conventional CC administration method.

关键词： Clomiphene Citrate Infertility Menstrual Cycle Ovulation Induction

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Adult-Type Granulosa Cell Tumor with Similar Clinical Findings Seen during Ovarian Cystectomy Performed at the Same Time as Laparoscopic Ovarian Drilling for Polycystic Ovarian Syndrome: An Extremely Rare Case

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Open Journal of Obstetrics and Gynecology 2024年第8期14卷 1197-1206页

作者： Remi Nakajima Risa Kobayashi Marie Kawai Eriko Sakamoto Miho Matsuda Rieko kanda Makoto Kawamura Department of Obstetrics and Gynecology Kohseichuo General Hospital. Tokyo Japan

Polycystic ovary syndrome (PCOS) is a major cause of anovulatory infertility. Laparoscopic ovarian drilling (LOD) is a treatment for PCOS that allows the laparoscopic identification of other intra-abdominal lesions and the provision of diagnostic treatment. This study reports a case of PCOS with an ovarian mass in which LOD was aggressively used and a granulosa cell tumor (GCT) was found. A 34-year-old woman with secondary amenorrhea and irregular menstrual cycles presented to the emergency department with abdominal pain of unknown etiology. Imaging studies revealed a 6-cm left ovarian mass with an internal appearance suggestive of a hemorrhage. The patient’s secondary amenorrhea was subsequently diagnosed as PCOS, and LOD was performed to preserve her fertility. Simultaneously, a cystectomy was performed to evaluate the tumor in the left ovary;the diagnosis was adult-type GCT. Although concomitant GCT and PCOS are extremely rare, the two conditions have similar clinical manifestations. In women of reproductive age, the impact of surgery on future fertility should be considered, and the initial surgical technique should be chosen carefully.

关键词： Polycystic Ovary Syndrome Laparoscopic Ovarian Drilling Granulosa Cell Tumor

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Criminal or bystander: imatinib and second primary malignancy in GIST patients

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Chinese Journal of Cancer Research 2013年第5期25卷 490-492页

作者： Tatsuo kanda Sanjo General Hospital

Niigata University Hospital is a regional center institution of cancer therapy where many patients with gastrointestinal stromal tumors （GISTs） are visiting to seek the latest *** the time Ⅰ was treating GIST patients there with imatinib,a tyrosine kinase inhibitor,a small concern was raised：Ⅰ successively encountered patients who were newly diagnosed as having malignant neoplasms during the course of their *** the 70 GIST patients who were enrolled in our prospective study of imatinib therapy,seven suffered from second primary malignancies （SPMs）.One female GIST patient who suffered from advanced esophageal cancer died of the SPM,whereas the remaining six patients continued with their imatinib therapy and their prognoses were not affected by their SPMs.I reported on the risk of SPMs in GIST patients under imatinib therapy to an international journal of clinical oncology （1）.As the patient cohort of our study was so small in number to apply to statistical analysis,our observation was no more than a clinical alert.

关键词： GIST imatinib and second primary malignancy in GIST patients Criminal or bystander

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Experimental and numerical study on hydrodynamics of riparian vegetation

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Journal of Hydrodynamics 2014年第5期26卷 796-806页

作者： UOTANI Takuya kanda Keiichi MICHIOKU Kohji Kobe City Bureau KobeJapan Department of Civil Engineering Akashi National College of TechnologyAkashiJapan Department of Civil and Environmental Engineering Hosei UniversityShinjukuTokyoJapan

Recently, many channelized rivers tend to be heavily vegetated due to regime shifts in hydrological, fluvial and ecological processes. Dense vegetation in a river frequently obstructs a flood flow and reduces conveyance capacity of channels. On the other hand, river vegetation provides various ecological services such as habitats for various species and life, natural cycle of organic and inorganic substances, etc.. It is of engineering importance to understand vegetation hydrodynamics in order to preserve vegetation nature and keep a certain level of flow conveyance capacity. In view that willows tend to be densely vegetated along the shoreline of floodplains or sandbars, a field measurement, a physical model experiment and a numerical analysis were carried out for investigating hydrodynamics in an open channel with riparian vegetation. Discussion was made focusing on flow and shear layer structures developed around the vegetation canopy.

关键词： open channel riparian vegetation drag force velocity profile laboratory experiment hydrodynamic model

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A Switching Controller System for a Wheeled Mobile Robot

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Journal of Bionic Engineering 2007年第4期4卷 281-289页

作者： Masanori Sato Atushi kanda Kazuo Ishii Department of Brain Science and Engineering Kyushu Institute of Technology Kitakyushu 808-0196 Japan

A wheeled mobile mechanism with a passive and/or active linkage mechanism for rough terrain environment is developed and evaluated. The wheeled mobile mechanism which has high mobility in rough terrain needs sophisticated system to adapt various environments. We focus on the development of a switching controller system for wheeled mobile robots in rough terrain. This system consists of two sub-systems： an environment recognition system using link angles and an adaptive control system. In the environment recognition system, we introduce a Self-Organizing Map （SOM） for clustering link angles. In the adaptive controllers, we introduce neural networks to calculate the inverse model of the wheeled mobile robot. The environment recognition system can recognize the environment in which the robot travels, and the adjustable controllers are tuned by experimental results for each environment. The dual sub-system switching controller system is experimentally evaluated. The system recognizes its environment and adapts by switching the adjustable controllers. This system demonstrates superior performance to a well-tuned single PID controller.

关键词： mobile robot rough terrain neural network Self-Organizing Map

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Light is an Important Limiting Factor for the Vertical Distribution of the Largest Extant Benthic Foraminifer Cycloclypeus carpenteri

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Journal of Earth Science 2022年第6期33卷 1460-1468页

作者： Kazuhiko Fujita Yoji kanda Takashi Hosono Department of Physics and Earth Sciences University of the RyukyusOkinawa903-0213Japan Tropical Biosphere Research Center University of the RyukyusOkinawa903-0213Japan Japan Agency for Marine-Earth Science and Technology(JAMSTEC) Global Oceanographic Data Center(GODAC)Kanagawa236-0001Japan

Cycloclypeus carpenteri is the largest extant benthic foraminifer,dwelling in the deep euphotic zone(a water depth between 60 and 130 m)of the warm oligotrophic Indo-West *** foraminifer harbors diatom endosymbionts and the foraminifer-microalgal association acts like a *** verify that light is an important limiting factor controlling the vertical(depth)distribution of living Cycloclypeus holobionts,their physiological responses to light intensity were examined by short-term metabolic measurements and long-term *** oxygen production(OP)rates measured under different light levels using an oxygen microelectrode indicate that Cycloclypeus holobionts are daily net primary producers adapted to low light levels,with slight photoinhibition(reduced net OP rates relative to a light-saturated rate)over 100μmol photons m^(−2)s^(−1).Long-term growth increments of asexually reproduced juveniles incubated for two months at different light levels ranging from 0 to 100μmol photons m^(−2)s^(−1) show that Cycloclypeus holobionts are adapted to a low light level(∼5μmol photons m^(−2)s^(−1)),but can be acclimatized to a certain low light ranges(<50μmol photons m^(−2)s^(−1)).These experimental results confirm that light is an important environmental gradient affecting the vertical distribution of Cycloclypeus holobionts.

关键词： algal symbiosis diatom large benthic foraminifer oxygen production photosynthesis

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Direct-acting antiviral agents against hepatitis C virus and lipid metabolism

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World Journal of Gastroenterology 2017年第31期23卷 5645-5649页

作者： tatsuo kanda mitsuhiko moriyama division of gastro-enterology and hepatology department of medicine nihon university school of medicine

Hepatitis C virus (HCV) infection induces steatosis and is accompanied by multiple metabolic alterations including hyperuricemia, reversible hypocholesterolemia and insulin resistance. Total cholesterol, low-density lipoprotein-cholesterol and triglyceride levels are increased by peginterferon and ribavirin combination therapy when a sustained virologic response (SVR) is achieved in patients with HCV. Steatosis is significantly more common in patients with HCV genotype 3 but interferon-free regimens are not always effective for treating HCV genotype 3 infections. HCV infection increases fatty acid synthase levels, resulting in the accumulation of fatty acids in hepatocytes. Of note, low-density lipoprotein receptor, scavenger receptor class B type I and Niemann-Pick C1-like 1 proteins are candidate receptors that may be involved in HCV. They are also required for the uptake of cholesterol from the external environment of hepatocytes. Among HCV-infected patients with or without human immunodeficiency virus infection, changes in serum lipid profiles are observed during interferon-free treatment and after the achievement of an SVR. It is evident that HCV affects cholesterol metabolism during interferon-free regimens. Although higher SVR rates were achieved with interferon-free treatment of HCV, special attention must also be paid to unexpected adverse events based on host metabolic changes including hyperlipidemia.

关键词： Cholesterol Hepatitis C virus Interferon-free Lipid metabolism

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Cathodoluminescence of diamond synthesized from silicon-carbide

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Chinese Science Bulletin 1996年第3期41卷 208-212页

作者：洪时明 kanda Hisao 芶立 National Institute for Research in Inorganic Materials Namiki 1-1 Tsukuba Ibaraki 305 Japan

As a wide energy gap semiconductor, diamond is expected to play a role in UV light-emitting diode or laser. However, the impurities and vacancies in diamond exert a great influence on optical properties of the crystals. It is important, therefore, to study the relation between impurities and the optical properties, and furthermore, to study the control of the impurities.

关键词： high pressure synthesis diamond cathodoluminescence optical centre.

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Emerging evidence of the molecular landscape specific for hematogenous metastasis from gastric cancer

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World Journal of Gastrointestinal Oncology 2018年第6期10卷 124-136页

作者： Dai Shimizu Mitsuro kanda Yasuhiro Kodera Department of Gastroenterological Surgery(Surgery Ⅱ) Nagoya University Graduate School of MedicineNagoya 466-8550Japan

Gastric cancer(GC) is one of the most frequentlydiagnosed cancers in the world. Most GC patients are diagnosed when the cancer is in an advanced stage, and consequently, some develop metastatic lesions that generally cause cancer-related death. Metastasis establishment is affected by various conditions, such as tumor location, hemodynamics and organotropism. While digestive cancers may share a primary site, certain cases develop hematogenous metastasis with the absence of peritoneal metastasis, and vice versa. Numerous studies have revealed the clinicopathological risk factors for hematogenous metastasis from GC, such as vascular invasion, advanced age, differentiation, Borrmann type 1 or 2 and expansive growth. Recently, molecular mechanisms that contribute to metastatic site determination have been elucidated by advanced molecular biological techniques. Investigating the molecules that specifically participate in metastasis establishment in distinct secondary organs will lead to the development of novel biomarkers for patient stratification according to their metastatic risk and strategies for preventing and treating distinct metastases. We reviewed articles related to the molecular landscape of hematogenous metastasis from GC.

关键词： Gastric cancer Hematogenous metastasis Hepatic metastasis Molecular mechanism Biomarker Premetastatic niche

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