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The Relationships among Community Type, Peat Layer Thickness, Belowground Carbon Storage and Habitat Age of Mangrove Forests in Pohnpei Island, Micronesia

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Open Journal of Forestry 2015年第1期5卷 48-56页

作者： Kiyoshi Fujimoto Yukira Mochida takao kikuchi Ryuichi Tabuchi Yasumasa Hirata Saimon Lihpai Faculty of Policy Studies Nanzan University Seto Japan Graduate School of Environmental and Information Sciences Yokohama National University Yokohama Japan Forestry and Forest Products Research Institute Tsukuba Japan Division of Forestry and Marine Enforcement Department of Land & Natural Resources Pohnpei State Government Kolonia The Federated States of Micronesia

This paper quantifies the relationships among community type, peat layer thickness and habitat age of the mangrove forests in Pohnpei Island, Micronesia and provides a discussion concerning the primary succession and the belowground carbon storage of the main mangrove community types. The ages of the habitat were estimated from a relationship between the thickness of the mangrove peat layer and the formative period, which was decided by calibrated radiocarbon ages. Mangrove communities in the coral reef type habitat were generally arranged in the following order, from seaward to landward: 1) the Rhizophora stylosa or Sonneratia alba community (I or II communities), 2) the typical subunit of the S. alba subcommunity of the Rhizophora apiculata— Bruguiera gymnorrhiza community (III(2)a subunit) and 3) the Xylocarpus granatum subunit of the same subcommunity of the same community (III(2)b subunit). Their habitat ages were estimated to be younger than 460 years, between 360 and 1070 years and between 860 and 2300 years, respectively. Based on these results and other evidences such as photosynthetic characteristics and pollen analysis derived from the previous studies, the primary succession was inferred to have progressed in the order mentioned above. Belowground stored carbon for the main community types in the coral reef type habitat were estimated to be less than 370 t C ha-1 for the I and the II communities, between 290 and 860 t C ha-1 for the III(2)a subunit and between 700 and 1850 t C ha-1 for the III(2)b subunit.

关键词： Mangrove Forest Community Type Habitat Age Belowground Carbon Storage Primary Succession

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Hepatic portal venous gas in pancreatic solitary metastasis from an esophageal squamous cell carcinoma

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Hepatobiliary & Pancreatic Diseases International 2013年第1期12卷 103-105页

作者： Takeshi Sawada Yasushi Adachi Manabu Noda Kimishige Akino Takefumi kikuchi Hiroaki Mita Yoshifumi Ishii takao Endo Division of Gastroenterology Sapporo Shirakaba-dai Hospital Department of Pathology Sapporo Shirakaba-dai Hospital

BACKGROUND:Hepatic portal venous gas(HPVG) is a rare entity commonly associated with intestinal necrosis and fatal outcome,and various underlying diseases have been *** solitary metastasis without local extension is also rare in esophageal squamous cell ***:This report describes an interesting and unusual case of HPVG arising from pancreatic *** revealed pathogenesis of HPVG and synchronous tumors of the esophagus and ***:A 73-year-old man developed synchronous double tumor in the esophagus and pancreas several months before acute abdomen and his death,which were generated by *** revealed that HPVG was caused by gastric wall infarction owing to expansion of an isolated pancreatic metastasis from esophageal squamous cell ***:This is the first case of HPVG that was derived from pancreatic tumor *** he had been diagnosed with solitary pancreatic metastasis from esophageal squamous cell carcinoma in the first time,he might have an option for chemotherapy,which could let him live longer.

关键词： hepatic portal venous gas solitary pancreatic tumor metastasis

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Survival of geriatric patients after percutaneous endoscopic gastrostomy in Japan

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World Journal of Gastroenterology 2010年第40期16卷 5084-5091页

作者： Yutaka Suzuki Seryna Tamez Akihiko Murakami Akihiko Taira Akihiro Mizuhara Akira Horiuchi Chie Mihara Eiji Ako Hirohito Muramatsu Hitoshi Okano Hitoshi Suenaga Kazuaki Jomoto Junya Kobayashi Katsunari Takifuji Kazuhiro Akiyama Koh Tahara Koji Onishi Makoto Shimazaki Masami Matsumoto Masashi Ijima Masato Murakami Masato Nakahori Michiaki Kudo Michio Maruyama Mikako Takahashi Naohiro Washizawa Shigeru Onozawa Satoshi Goshi Satoyoshi Yamashita Shigeki Ono Shin Imazato Shinji Nishiwaki Shuichirou Kitahara takao Endo takao Iiri Takeshi Nagahama Takuto Hikichi Tatsuya Mikami Tetsuo Yamamoto Tetsushi Ogawa Tomoko Ogawa Tomoyuki Ohta Toshifumi Matsumoto Toshiroh Kura Tsutomu kikuchi Tsuyoshi Iwase Tsuyotoshi Tsuji Yukio Nishiguchi Mitsuyoshi Urashima Department of Surgery International Universi-ty of Health and Welfare Hospital Department of Molecular Epidemiology Jikei University School of Medicine Endoscopy Unit Iwate prefectural Central Hospital Department of Internal Medicine Tsuyama Chuo Hospital Department of Surgery Higashi Washi-nomiya Hospital Digestive Disease Center Showa Inan General Hospital Department of Neurology Ebina Medical Sup-port Center Department of Surgery Sumitomo Hospital Department of Gastroenterology Kiyota Hospital Department of Gastroenterology Okano Clinic Department of Geriatrics Hitachikoh Hospital Department of Internal Medicine Jomoto Gastroenteric and Internal Medical Clinic Department of Surgery Fujiyoshida Munici-pal Hospital 2nd Department of Surgery Wakayama Medical University Hospital Department of Surgery Tokatsu-clinic Hospital Department of Surgery Kure Kyosai Hospital Department of Internal Medicine Matsue Sei-kyo Genaral Hospital Department of Gastroenterology Hirano General Hospital Department of Internal Medicin Nara Prefectural Gojo Hospital Department of Internal Medicine Isesaki Mu-nicipal Hospital Department of Internal Medicine Muraka-mi Memorial Hospital Digestive Endoscopy Center Sendai Kousei Hospital Department of Surgery Onishi Hospital Department of Surgery Tokyo Metropoli-tan Ohkubo Hospital Department of Internal Medicine Tsuruoka Kyoritsu Hospital Nutritional Therapy Center Toho Uni-versity Omori Medical Center Home Care Department Kameda Medical Hospital Endoscopic Treatment Center Japan Labour Health and Welfare Organization Niigata Rousai Hospital Department of Gastroenterology and Hepatology Social Insurance Shimonoseki Welfare Hospital Department of Gastroenterology Ako City Hospital Percutaneous Endoscopic Gastrostomy Center Oita Kensei Hospital Department of Internal Medicine Nishimino Kosei Hospital Department of Pediatric Surgery Nagano Red Cross Hospital Department of Internal Medicine Sapporo Shirakaba-dai hospital Department of Gastroenterology Tachikawa

AIM: To examine the long term survival of geriatric patients treated with percutaneous endoscopic gastrostomy (PEG) in Japan. METHODS: We retrospectively included 46 Japanese community and tertiary hospitals to investigate 931 consecutive geriatric patients (≥ 65 years old) with swallowing difficulty and newly performed PEG between Jan 1st 2005 and Dec 31st 2008. We set death as an outcome and explored the associations among patient’s characteristics at PEG using log-rank tests and Cox proportional hazard models. RESULTS: Nine hundred and thirty one patients were followed up for a median of 468 d. A total of 502 deaths were observed (mortality 53%). However, 99%, 95%, 88%, 75% and 66% of 931 patients survived more than 7, 30, 60 d, a half year and one year, respectively. In addition, 50% and 25% of the patients survived 753 and 1647 d, respectively. Eight deaths were considered as PEG-related, and were associated with lower serum albumin levels (P = 0.002). On the other hand, among 28 surviving patients (6.5%), PEG was removed. In a multivariate hazard model, older age [hazard ratio (HR), 1.02; 95% confidence interval (CI), 1.00-1.03; P = 0.009], higher C-reactive protein (HR, 1.04; 95% CI: 1.01-1.07; P = 0.005), and higher blood urea nitrogen (HR, 1.01; 95% CI: 1.00-1.02; P = 0.003) were significant poor prognostic factors, whereas higher albumin (HR, 0.67; 95% CI: 0.52-0.85; P = 0.001), female gender (HR, 0.60; 95% CI: 0.48-0.75; P < 0.001) and no previous history of ischemic heart disease (HR, 0.69; 95% CI: 0.54-0.88, P = 0.003) were markedly better prognostic factors. CONCLUSION: These results suggest that more than half of geriatric patients with PEG may survive longer than 2 years. The analysis elucidated prognostic factors.

关键词： Percutaneous endoscopic gastrostomy Enteral nutrition Comorbidity Survival Risk factor

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Prediction of the effect on antihyperglycaemic action of sitagliptin by plasma active form glucagon-like peptide-1

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世界糖尿病杂志：英文版（电子版） 2016年第11期7卷 230-238页

作者： Akifumi Kushiyama Takako kikuchi Kentaro Tanaka Tazu Tahara Toshiko takao Yukiko Onishi Yoko Yoshida Shoji Kawazu Yasuhiko Iwamoto Division of Diabetes and Metabolism Institute for Adult Diseases Asahi Life Foundation Department of Nephrology School of Medicine Faculty of Medicine Toho University

AIM: To investigate whether active glucagon-like peptide-1(GLP-1) is a prediction Factor of Effect of sitagliptin on patients with type 2 diabetes mellitus(GLP-1 FEST:UMIN000010645). METHODS: Seventy-six patients with type 2 diabetes, who had insufficient glycemic control [Hemoglobin A1c(Hb A1c) ≥ 7%] in spite of treatment with metformin and/or sulfonylurea, were included in the investigation. Patients were divided into three groups by tertiles of fasting plasma active GLP-1 level, before the administration of 50 mg sitagliptin. RESULTS: At baseline, body mass index, serum UA, insulin and HOMA-IR were higher in the high active GLP-1 group than in the other two groups. The high active GLP-1 group did not show any decline of Hb A1c(7.6% ± 1.4% to 7.5% ± 1.5%), whereas the middle and low groups indicated significant decline of Hb A1c(7.4 ± 0.7 to 6.8 ± 0.6 and 7.4 ± 1.2 to 6.9 ± 1.3, respectively) during six months. Only the low and middle groups showed a significant increment of active GLP-1, C-peptide level, a decreased log and proinsulin/insulin ratio after administration. In logistic analysis, the low or middle group is a significantexplanatory variable for an Hb A1 c decrease of ≥ 0.5%, and its odds ratio is 4.5(1.40-17.6)(P = 0.01) against the high active GLP-1 group. This remains independent when adjusted for Hb A1 c level before administration, patients' medical history, medications, insulin secretion and insulin ***: Plasma fasting active GLP-1 is an independent predictive marker for the efficacy of dipeptidyl peptidase 4 inhibitor sitagliptin.

关键词： Dipeptidyl peptidase-4 inhibitor Active form glucagon-like peptide-1 Hemoglobin A1c Regression analysis

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