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Tani T, Ishikawa Y. A deuterium tracer experiment for simulating accumulation and elimination of organically bound tritium in an edible flatfish, olive flounder. Sci Total Environ 2023; 903:166792. [PMID: 37666348 DOI: 10.1016/j.scitotenv.2023.166792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/06/2023]
Abstract
Tritium (3H, T) is discharged by nuclear facilities into coastal oceans as tritiated water (HTO). When the concentration of HTO in seawater increases, the accumulation of organically bound tritium (OBT) in edible fish becomes a concern because of its longer residence time than HTO. To evaluate the accumulation potential of OBT in olive flounder (Paralichthys olivaceus), a commercially important edible fish in northeast Asia, we experimentally exposed the fish to seawater enriched with deuterium (2H, D) as a substitute for tritium. Progressive increases and decreases in the concentration of organically bound deuterium (OBD) were observed in the edible part (i.e., muscle) of the fish during the period of exposure to 2H (161 days) and the subsequent period of elimination of OBD (196 days). The measured concentration of OBD was analyzed using a newly developed single-compartment model to describe the metabolism of OBD in muscle via the following three transfer pathways: formation of OBD from 2H in water, elimination of OBD by catabolism, and ingestion of feed with natural abundance of OBD. The model estimates were in good agreement with the measured muscle OBD concentrations. The formation and elimination rate constants for OBD in the muscle were estimated by fitting our model to the measured data. The biological half-life of OBT in the muscle, estimated from the elimination rate constant, was 133 days, which was far longer than that of HTO in the free water of the muscle. Our model facilitates the estimation of OBT accumulation potential in olive flounder inhabiting coastal areas near nuclear facilities, and thus, will help to assess the radiation dose that humans are exposed to from ingesting seafood.
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Affiliation(s)
- Takashi Tani
- Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Aomori 039-3212, Japan.
| | - Yoshio Ishikawa
- Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Aomori 039-3212, Japan
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Mohamed FF, de Oliveira FA, Kinoshita Y, Yalamanchili RR, Eltilib LA, Andras NL, Narisawa S, Tani T, Chu EY, Millán JL, Foster BL. Dentoalveolar Alterations in an Adenine-Induced Chronic Kidney Disease Mouse Model. J Bone Miner Res 2023; 38:1192-1207. [PMID: 37191192 PMCID: PMC10524958 DOI: 10.1002/jbmr.4829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 05/02/2023] [Accepted: 05/08/2023] [Indexed: 05/17/2023]
Abstract
Chronic kidney disease (CKD) is characterized by kidney damage and loss of renal function. CKD mineral and bone disorder (CKD-MBD) describes the dysregulation of mineral homeostasis, including hyperphosphatemia and elevated parathyroid hormone (PTH) secretion, skeletal abnormalities, and vascular calcification. CKD-MBD impacts the oral cavity, with effects including salivary gland dysfunction, enamel hypoplasia and damage, increased dentin formation, decreased pulp volume, pulp calcifications, and altered jaw bones, contributing to clinical manifestations of periodontal disease and tooth loss. Underlying mechanisms are not fully understood, and CKD mouse models commonly require invasive procedures with high rates of infection and mortality. We aimed to characterize the dentoalveolar effects of an adenine diet (AD)-induced CKD (AD-CKD) mouse model. Eight-week-old C57BL/6J mice were provided either a normal phosphorus diet control (CTR) or adenine and high-phosphorus diet CKD to induce kidney failure. Mice were euthanized at 15 weeks old, and mandibles were collected for micro-computed tomography and histology. CKD mice exhibited kidney failure, hyperphosphatemia, and hyperparathyroidism in association with porous cortical bone in femurs. CKD mice showed a 30% decrease in molar enamel volume compared to CTR mice. Enamel wear was associated with reduced ductal components, ectopic calcifications, and altered osteopontin (OPN) deposition in submandibular salivary glands of CKD mice. Molar cusps in CKD mice were flattened, exposing dentin. Molar dentin/cementum volume increased 7% in CKD mice and pulp volume decreased. Histology revealed excessive reactionary dentin and altered pulp-dentin extracellular matrix proteins, including increased OPN. Mandibular bone volume fraction decreased 12% and bone mineral density decreased 9% in CKD versus CTR mice. Alveolar bone in CKD mice exhibited increased tissue-nonspecific alkaline phosphatase localization, OPN deposition, and greater osteoclast numbers. AD-CKD recapitulated key aspects reported in CKD patients and revealed new insights into CKD-associated oral defects. This model has potential for studying mechanisms of dentoalveolar defects or therapeutic interventions. © 2023 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Fatma F. Mohamed
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Flavia Amadeu de Oliveira
- Sanford Children’s Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Yuka Kinoshita
- Sanford Children’s Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Riti R. Yalamanchili
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Leena A. Eltilib
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Natalie L. Andras
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
| | - Sonoko Narisawa
- Sanford Children’s Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Takashi Tani
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Emily Y. Chu
- Department of General Dentistry, Operative Division, University of Maryland School of Dentistry, Baltimore, Maryland, USA
| | - José Luis Millán
- Sanford Children’s Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Brian L. Foster
- Division of Biosciences, College of Dentistry, The Ohio State University, Columbus, OH, USA
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Ohara N, Hirota N, Takada T, Tani T, Terajima K, Ozawa T, Seki Y, Akiyama K, Yoneoka Y. An 81-Year-Old Man Presenting with Asthenia and Anorexia After an Alcohol-Induced Hypoglycemic Coma and a Diagnosis of Central Adrenal Insufficiency: A Case Report. Am J Case Rep 2023; 24:e939840. [PMID: 37394782 DOI: 10.12659/ajcr.939840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
BACKGROUND Alcohol abuse inhibits the ability of the liver to release glucose into the bloodstream, primarily by inhibiting gluconeogenesis, so chronic alcohol abusers exhibit hypoglycemia after drinking alcohol without eating; this is called alcohol-induced hypoglycemia. Central adrenal insufficiency (AI) is characterized by cortisol deficiency due to a lack of adrenocorticotropic hormone. It is challenging to diagnose central AI, as it usually presents with nonspecific symptoms, such as asthenia, anorexia, and a tendency toward hypoglycemia. Here, we report a rare case of central AI that presented with AI symptoms shortly after an alcohol-induced hypoglycemic coma. CASE REPORT An 81-year-old Japanese man who had been a moderate drinker for >40 years developed a hypoglycemic coma after consuming a large amount of sake (alcohol, 80 g) without eating. After the hypoglycemia was treated with a glucose infusion, he rapidly recovered consciousness. After stopping alcohol consumption and following a balanced diet, he had normal plasma glucose levels. However, 1 week later, he developed asthenia and anorexia. The endocrinological investigation results indicated central AI. He was started on oral hydrocortisone (15 mg/day), which relieved his AI symptoms. CONCLUSIONS Cases of central AI associated with alcohol-induced hypoglycemic attacks have been reported. Our patient developed AI symptoms following an alcohol-induced hypoglycemic attack. His alcohol-induced hypoglycemic attack likely occurred in combination with a developing cortisol deficiency. This case highlights the importance of considering central AI in chronic alcohol abusers presenting with nonspecific symptoms, including asthenia and anorexia, especially when patients have previously experienced alcohol-induced hypoglycemic attacks.
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Affiliation(s)
- Nobumasa Ohara
- Department of Endocrinology and Metabolism, Uonuma Kikan Hospital, Minami-Uonuma, Niigata, Japan
| | - Naoko Hirota
- Department of Internal Medicine, Niigata Prefectural Tokamachi Hospital, Tokamachi, Niigata, Japan
| | - Toshinori Takada
- Department of Respiratory Medicine, Uonuma Kikan Hospital, Minami-Uonuma, Niigata, Japan
| | - Takashi Tani
- Department of Neurology, Uonuma Kikan Hospital, Minami-Uonuma, Niigata, Japan
| | - Kenshi Terajima
- Department of Neurology, Uonuma Kikan Hospital, Minami-Uonuma, Niigata, Japan
| | - Tetsutaro Ozawa
- Department of Neurology, Uonuma Kikan Hospital, Minami-Uonuma, Niigata, Japan
| | - Yasuhiro Seki
- Department of Neurosurgery, Uonuma Kikan Hospital, Minami-Uonuma, Niigata, Japan
| | - Katsuhiko Akiyama
- Department of Neurosurgery, Uonuma Kikan Hospital, Minami-Uonuma, Niigata, Japan
| | - Yuichiro Yoneoka
- Department of Neurosurgery, Uonuma Kikan Hospital, Minami-Uonuma, Niigata, Japan
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Sakurai Y, Ohara N, Fukai Y, Seki Y, Akiyama K, Yoneoka Y, Takada T, Tani T, Terajima K, Ozawa T, Sone H. Hypoglycemic Hemiplegia Associated with Reversible Narrowing of the Contralateral Middle Cerebral Artery in a Patient with Adrenal Insufficiency. Intern Med 2023; 62:751-756. [PMID: 35871581 PMCID: PMC10037026 DOI: 10.2169/internalmedicine.0038-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A 56-year-old man with a 2.5-month history of anorexia developed sweating, weakness, and left hemiplegia and hemispatial neglect. Brain magnetic resonance imaging detected no abnormalities, but magnetic resonance angiography revealed narrowing of the right middle cerebral artery (MCA). The focal neurological signs and narrowing of the MCA resolved after detection and correction of hypoglycemia. Endocrinological examinations indicated adrenal insufficiency. Hemiplegia is a rare but important neurological manifestation of hypoglycemia, although the mechanisms involved remain unknown. Combined hypoglycemia and decreased MCA blood flow associated with vasospasm probably induced regionally severe neuroglycopenia with ischemia, which presented as focal neurological symptoms.
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Affiliation(s)
- Yuhki Sakurai
- Department of Endocrinology and Metabolism, Uonuma Kikan Hospital, Japan
- Department of Hematology, Endocrinology and Metabolism, Niigata University Faculty of Medicine, Japan
| | - Nobumasa Ohara
- Department of Endocrinology and Metabolism, Uonuma Kikan Hospital, Japan
| | - Yumi Fukai
- Department of Endocrinology and Metabolism, Uonuma Kikan Hospital, Japan
| | - Yasuhiro Seki
- Department of Neurosurgery, Uonuma Kikan Hospital, Japan
| | | | | | - Toshinori Takada
- Department of Respiratory Medicine, Uonuma Kikan Hospital, Japan
| | - Takashi Tani
- Department of Neurology, Uonuma Kikan Hospital, Japan
| | | | | | - Hirohito Sone
- Department of Hematology, Endocrinology and Metabolism, Niigata University Faculty of Medicine, Japan
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Tani T, Senda Miyake E, Sugino K, Hashimoto K, Kashiwagi T, Sakai Y, Iwabu M. Imaging Findings in a Case of Bacteremia Caused by Non-Typhoidal Salmonella Associated with a Congenital Venous Malformation. J NIPPON MED SCH 2023; 89:570-571. [PMID: 36725000 DOI: 10.1272/jnms.jnms.2022_89-614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Non-typhoidal Salmonella infection is a typical food-poisoning disease, which rarely causes bacteremia, except in immunocompromised individuals. We report the case of a healthy adult in whom a varicose vein associated with a lower-leg venous malformation was considered the source of Salmonella bacteremia.
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Affiliation(s)
- Takashi Tani
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School.,Department of Internal Medicine, Tokyo Rinkai Hospital
| | | | - Kenta Sugino
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School.,Department of Internal Medicine, Tokyo Rinkai Hospital
| | - Kazumasa Hashimoto
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School.,Department of Internal Medicine, Tokyo Rinkai Hospital
| | - Tetsuya Kashiwagi
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School
| | - Yukinao Sakai
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School
| | - Masato Iwabu
- Department of Endocrinology, Metabolism and Nephrology, Graduate School of Medicine, Nippon Medical School
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Tani T, Satoh Y. Development of a carbon accumulation model for estimating the concentration of 14C in Japanese radish. J NUCL SCI TECHNOL 2022. [DOI: 10.1080/00223131.2022.2123407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Takashi Tani
- Department of Radioecology, Institute for Environmental Sciences, Aomori, Japan
| | - Yuhi Satoh
- Department of Radioecology, Institute for Environmental Sciences, Aomori, Japan
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Masuda T, Tani T, Arai R, Tako Y. METABOLISMS OF 13C IN CATTLE SEMITENDINOSUS MUSCLE AFTER ADMINISTRATION OF 13C LABELED ORCHARD GRASS. Radiat Prot Dosimetry 2022; 198:1150-1154. [PMID: 36083767 DOI: 10.1093/rpd/ncac083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 05/08/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
14C released from nuclear facilities is transferred to cattle through their consumption of 14C contaminated grasses. To estimate the concentrations of 14C in their meat, we conducted two sets of experiments. In the first experiment, 230 mg of 13C per day was administered to cattle aged 10 months for 28 days in the form of 13C-labeled grass. The 13C concentration in the semitendinosus muscle decreased exponentially after reaching its peak value. The mean half-life was 76 ± 13 days. In the second experiment, 550 mg of 13C per day was administered to 24-month-old cattle. The change in the semitendinosus muscle was smaller than that recorded in the first experiment, even though the amount of 13C administered per body weight was slightly higher than that in the first experiment. Consequently, the half-life was not determined. Therefore, further studies are required to clarify the metabolism of carbon in 2-year-old cattle.
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Affiliation(s)
- Tsuyoshi Masuda
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-Mura, Aomori-Ken 039-3212, Japan
| | - Takashi Tani
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-Mura, Aomori-Ken 039-3212, Japan
| | - Ryuji Arai
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-Mura, Aomori-Ken 039-3212, Japan
| | - Yasuhiro Tako
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho-Mura, Aomori-Ken 039-3212, Japan
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Tani T, Nagai M. RETENTION OF ORGANICALLY BOUND DEUTERIUM IN GRASS PLANTS EXPOSED TO HEAVY WATER VAPOUR AT DIFFERENT GROWTH STAGES. Radiat Prot Dosimetry 2022; 198:886-890. [PMID: 36083732 DOI: 10.1093/rpd/ncab192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/14/2021] [Accepted: 11/02/2021] [Indexed: 06/15/2023]
Abstract
Potted timothy grass plants were exposed to heavy water (HDO) vapour at seven different periods during the third growth of harvestable shoots (the part 5-cm above the ground surface), and the concentration of non-exchangeable organically bound deuterium (NE-OBD) was measured in harvestable shoots, stubbles and roots at the third harvest. The excess concentration of NE-OBD was obtained as an increase in the concentration of NE-OBD against the background level. On average, this value was 1.8- to 2.6-fold higher in the harvestable shoots than in the stubble for plants exposed to HDO vapour during the period when the harvestable shoots grew faster than the stubble. Our results suggest that the separation of harvestable shoots and stubble, both of which are generally combined as one part in studies on the metabolism of organically bound tritium (OBT) in grass, could contribute to a realistic evaluation of OBT transfer from timothy to livestock.
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Affiliation(s)
- Takashi Tani
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Aomori 039-3212 Japan
| | - Masaru Nagai
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Aomori 039-3212 Japan
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Tani T, Sugino K, Hashimoto K, Mii A, Kashiwagi T, Shimizu A, Sakai Y, Iwabu M. Concomitant Anti-GBM glomerulonephritis and acute interstitial nephritis following PD-1 blockade with nivolumab. Kidney Int Rep 2022; 7:2317-2318. [PMID: 36217512 PMCID: PMC9546764 DOI: 10.1016/j.ekir.2022.08.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 11/26/2022] Open
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Satoh Y, Imada S, Tani T, Ishimine A, Arai R. Investigation of ratio of carbon to hydrogen (C/H ratio) in agricultural plants for further estimation of their productivity of organically bound tritium. J Environ Radioact 2022; 246:106845. [PMID: 35172229 DOI: 10.1016/j.jenvrad.2022.106845] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 06/14/2023]
Abstract
The carbon to hydrogen ratio (C/H ratio, w/w) in plants is a key factor in estimating the amount of hydrogen in the photosynthetic product. The amount of hydrogen calculated from photosynthetic model estimation associated with the C/H ratio is an essential parameter of the estimation model of productivity of organically bound tritium (OBT) by plants. To propose a sophisticated estimation model of OBT by agricultural plants, temporal changes in the C/H ratio of six plant species (Japanese radish, cabbage, orchard grass, paddy field rice, apple, and radish) during their cultivation were investigated for each plant part. The C/H ratio in the plants cultivated in the field and growth chamber generally exceeded 6, which is the value for the primary photosynthetic monosaccharides, such as glucose and fructose (both chemical formulae, C6H12O6). In the vegetative parts (e.g. Japanese radish leaves, cabbage leaves and roots, rice leaves and roots, and radish leaves and fine roots) the C/H ratio fluctuated irregularly or remained constant within an approximate range of 6.6-7.3 during cultivation. The C/H ratio in enlarged organs (e.g. Japanese radish root, rice ear, apple fruit, and radish main root) decreased continuously, approaching 6. These results suggest that the C/H ratio can be generally set as approximately 6.9 except for enlarged organs, in which the ratio may change over time during cultivation, within an approximate range of 6-7.
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Affiliation(s)
- Yuhi Satoh
- Department of Radioecology, Institute for Environmental Sciences (IES), 1-7 Rokkasho, Aomori, 039-3212, Japan.
| | - Shogo Imada
- Department of Radioecology, Institute for Environmental Sciences (IES), 1-7 Rokkasho, Aomori, 039-3212, Japan
| | - Takashi Tani
- Department of Radioecology, Institute for Environmental Sciences (IES), 1-7 Rokkasho, Aomori, 039-3212, Japan
| | - Akinobu Ishimine
- Department of Radioecology, Institute for Environmental Sciences (IES), 1-7 Rokkasho, Aomori, 039-3212, Japan
| | - Ryuji Arai
- Department of Radioecology, Institute for Environmental Sciences (IES), 1-7 Rokkasho, Aomori, 039-3212, Japan
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Kawasaki S, Tani T, Haraguchi S, Funakoshi T, Mii A, Kashiwagi T, Kurita J, Sakai Y, Ishii Y. A Case of Acute Kidney Injury Associated with Leriche Syndrome. J NIPPON MED SCH 2022; 88:514-515. [PMID: 34980741 DOI: 10.1272/jnms.jnms.2021_88-610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Leriche syndrome is an aortoiliac occlusive disease with three chief symptoms: claudication, impotence, and weak femoral pulse. It can also cause occlusion of the aorta up to the level of the renal arteries. We report a case in which aortoiliac bypass and renal artery thrombectomy were effective in ameliorating acute kidney injury caused by bilateral renal artery thrombosis.
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Affiliation(s)
| | | | | | | | - Akiko Mii
- Department of Nephrology, Nippon Medical School
| | | | - Jiro Kurita
- Department of Cardiovascular Surgery, Nippon Medical School
| | | | - Yosuke Ishii
- Department of Cardiovascular Surgery, Nippon Medical School
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Ueda S, Hasegawa H, Ohtsuka Y, Ochiai S, Tani T. Ten-year radiocesium fluvial discharge patterns from watersheds contaminated by the Fukushima nuclear power plant accident. J Environ Radioact 2021; 240:106759. [PMID: 34700123 DOI: 10.1016/j.jenvrad.2021.106759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
After the Fukushima Dai-ichi nuclear power plant accident in March 2011, the fluvial discharge of 137Cs from watersheds to rivers was analyzed between 2011 and 2021. The concentrations of dissolved and particulate 137Cs were measured in river water samples collected from two rivers (the Hiso and Wariki rivers, mainly draining farmlands and forests, respectively) draining approximately 4-7 km2 watersheds in a montane area (the areal deposition of 134+137Cs; 1-3 MBq·m-2 in March 2011) of Iitate Village, Fukushima. Over the 10 yr analysis, the particulate 137Cs concentrations in the Hiso and Wariki rivers decreased by 70 and 50 times, respectively, and that of the dissolved form decreased by 150 and 130 times, respectively. Moreover, the apparent Kd (distribution coefficient) of 137Cs for water samples from both rivers have increased gradually over these periods. In 2011, the 137Cs discharge rates through the Hiso and Wariki rivers were 0.63% and 0.46% per year of the total amount of 137Cs deposited in their catchments, respectively; however, by 2021, these rates had decreased to 0.09% and 0.03% per year. The cumulative 137Cs discharge rates over 10 yr in the farmland- and forest-dominated rivers were 1.95% and 1.33%, respectively. These rates of the farmland-dominated river were ∼1.4-fold greater than those of the forest-dominated river. Moreover, ∼90% of the of the discharge occurred in particulate form while the remaining ∼10% was in the dissolved form. Thus, 137Cs deposited within these watersheds due to the accident was gradually discharged by the rivers over the 10-yr period; however, the majority remains stored in soils and litters etc. of the catchment area. These results indicate that 137Cs outflow from land-to-ocean will be limited in the future, as the river export of 137Cs is expected to continue decreasing.
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Affiliation(s)
- Shinji Ueda
- Department of Radioecology, Institute for Environmental Sciences 1-7 Rokkasho, Aomori 039-3212, Japan.
| | - Hidenao Hasegawa
- Department of Radioecology, Institute for Environmental Sciences 1-7 Rokkasho, Aomori 039-3212, Japan
| | - Yoshihito Ohtsuka
- Department of Radioecology, Institute for Environmental Sciences 1-7 Rokkasho, Aomori 039-3212, Japan
| | - Shinya Ochiai
- Institute of Nature and Environmental Technology, Kanazawa University Kakuma, Kanazawa, Ishikawa 920-1192, Japan
| | - Takashi Tani
- Department of Radioecology, Institute for Environmental Sciences 1-7 Rokkasho, Aomori 039-3212, Japan
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Toyoshima Y, Takahashi H, Katada S, Kojima N, Tada M, Tani T, Koike R, Nozawa T, Aida I, Nakajima T, Onodera O, Kakita A. Parkinson's disease and parkinsonism: Clinicopathological discrepancies on diagnosis in three patients. Neuropathology 2021; 41:450-456. [PMID: 34779072 DOI: 10.1111/neup.12777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/12/2021] [Accepted: 08/12/2021] [Indexed: 11/28/2022]
Abstract
Parkinson's disease (PD) is one of the most common neurodegenerative disorders. The cardinal neuropathological features of PD include selective and progressive loss of pigmented neurons in the substantia nigra, deficiencies in dopaminergic signaling in the striatum, and occurrence of phosphorylated α-synuclein-identified Lewy bodies in the nervous system. Parkinsonism, the clinical presentation of movement disorders seen in PD, is a feature shared commonly by other pathologically distinct neurodegenerative diseases, such as progressive supranuclear palsy (PSP), corticobasal degeneration (CBD), and multiple system atrophy (MSA). Consequently, it is sometimes difficult to distinguish PD from such parkinsonism-related neurological disorders. In addition, parkinsonism is not always a feature of certain neurodegenerative diseases, and it can sometimes develop as a result of various forms of drug intoxication or cerebrovascular disease. Here, we describe the clinicopathological features of three patients (cases 1, 2, and 3) diagnosed as having PSP, MSA, and PD, respectively, in each of whom the postmortem histopathological diagnosis differed from the final clinical diagnosis. Neuropathologically, they had suffered from coexistent disorders: PD, MSA, and argyrophilic grain disease (case 1); PD (case 2); and vascular parkinsonism (case 3). The variety of patients showing features of parkinsonism underlines the importance of careful long-term follow up followed by postmortem neuropathological evaluation.
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Affiliation(s)
- Yasuko Toyoshima
- Department of Neurology, Brain Disease Center, Agano Hospital, Agano, Japan.,Departments of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Hitoshi Takahashi
- Department of Pathology and Laboratory Medicine, Niigata Neurosurgical Hospital, Niigata, Japan
| | | | | | - Mari Tada
- Departments of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Takashi Tani
- Department of Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Ryoko Koike
- Department of Neurology, NHO Nishiniigata Chuo Hospital, Niigata, Japan
| | - Takanori Nozawa
- Departments of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Izumi Aida
- Department of Neurology, NHO Niigata National Hospital, Niigata, Japan
| | - Takashi Nakajima
- Department of Neurology, NHO Niigata National Hospital, Niigata, Japan
| | - Osamu Onodera
- Neurology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Akiyoshi Kakita
- Departments of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
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14
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Nguyen N, Yamada A, Naka S, Tani T. Zero-ischemic and sutureless partial nephrectomy by using microwave surgical device: Initial results in canine models. EUR UROL SUPPL 2021. [DOI: 10.1016/s2666-1683(21)01220-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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15
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Imada S, Tani T, Tako Y, Moriya Y, Hisamatsu S. In situ experimental exposure of fruit-bearing shoots of apple trees to 13CO 2 and construction of a dynamic transfer model of carbon. J Environ Radioact 2021; 233:106595. [PMID: 33827008 DOI: 10.1016/j.jenvrad.2021.106595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/13/2021] [Accepted: 03/18/2021] [Indexed: 06/12/2023]
Abstract
Evaluating the transfer and metabolism of carbon (C) in apple fruit is key to estimating the potential accumulation of atmospheric 14C in fruit near and around nuclear facilities. We developed a dynamic compartment model for apple fruit-bearing shoots, assuming that the shoots are a simple unit of source and sink for photoassimilates. Fruit-bearing shoots of Malus domestica "Fuji" at different fruit growth stages were exposed to 13CO2in situ, followed by sampling at 72 h after exposure or at harvest. The 13C/(13C+12C) mole ratio in fruits, leaves, and current branch were measured to construct a five-compartment model of 13C (fruit, each fast and slow component of leaves, and current branch). The C inventories in the compartments were presented in accordance with the measured growth curves of C in the organs. The model simulated the 13C dynamics in plant tissues well. Simulation results of photoassimilate distribution using the model indicated that the retention of photoassimilated C at the harvest depended on the growth rate of C in the organs at the exposure.
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Affiliation(s)
- Shogo Imada
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan.
| | - Takashi Tani
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan
| | - Yasuhiro Tako
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan
| | - Yuki Moriya
- Division of Apple Research, Institute of Fruit Tree and Tea Science, NARO, Nabeyashiki-92 Shimokuriyagawa, Morioka, Iwate, 020-0123, Japan
| | - Shun'ichi Hisamatsu
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan
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16
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Salmivuori M, Grönroos M, Tani T, Pölönen I, Räsänen J, Annala L, Snellman E, Neittaanmäki N. Hexyl aminolevulinate, 5-aminolevulinic acid nanoemulsion and methyl aminolevulinate in photodynamic therapy of non-aggressive basal cell carcinomas: A non-sponsored, randomized, prospective and double-blinded trial. J Eur Acad Dermatol Venereol 2020; 34:2781-2788. [PMID: 32196772 DOI: 10.1111/jdv.16357] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 02/28/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND In the photodynamic therapy (PDT) of non-aggressive basal cell carcinomas (BCCs), 5-aminolevulinic acid nanoemulsion (BF-200ALA) has shown non-inferior efficacy when compared with methyl aminolevulinate (MAL), a widely used photosensitizer. Hexyl aminolevulinate (HAL) is an interesting alternative photosensitizer. To our knowledge, this is the first study using HAL-PDT in the treatment of BCCs. OBJECTIVES To compare the histological clearance, tolerability (pain and post-treatment reaction) and cosmetic outcome of MAL, BF-200 ALA and low-concentration HAL in the PDT of non-aggressive BCCs. METHODS Ninety-eight histologically verified non-aggressive BCCs met the inclusion criteria, and 54 patients with 95 lesions completed the study. The lesions were randomized to receive LED-PDT in two repeated treatments with MAL, BF-200 ALA or HAL. Efficacy was assessed both clinically and confirmed histologically at three months by blinded observers. Furthermore, cosmetic outcome, pain, post-treatment reactions fluorescence and photobleaching were evaluated. RESULTS According to intention-to-treat analyses, the histologically confirmed lesion clearance was 93.8% (95% confidence interval [CI] = 79.9-98.3) for MAL, 90.9% (95% CI = 76.4-96.9) for BF-200 ALA and 87.9% (95% CI = 72.7-95.2) for HAL, with no differences between the arms (P = 0.84). There were no differences between the arms as regards pain, post-treatment reactions or cosmetic outcome. CONCLUSIONS Photodynamic therapy with low-concentration HAL and BF-200 ALA has a similar efficacy, tolerability and cosmetic outcome compared to MAL. HAL is an interesting new option in dermatological PDT, since good efficacy is achieved with a low concentration.
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Affiliation(s)
- M Salmivuori
- Department of Dermatology and Allergology, Päijät-Häme Social and Health Care Group, Lahti, Finland.,Department of Dermatology, Faculty of Medicine and Health Technology, Tampere University Hospital and Tampere University, Tampere, Finland.,Department of Dermatology and Allergology, Helsinki University Hospital, Helsinki, Finland
| | - M Grönroos
- Department of Dermatology and Allergology, Päijät-Häme Social and Health Care Group, Lahti, Finland.,Department of Dermatology, Faculty of Medicine and Health Technology, Tampere University Hospital and Tampere University, Tampere, Finland
| | - T Tani
- Department of Dermatology and Allergology, Päijät-Häme Social and Health Care Group, Lahti, Finland.,HUSLAB Laboratory Services, Helsinki University Hospital, Hospital District of Helsinki and Uusimaa, Helsinki, Finland
| | - I Pölönen
- Faculty of Information Technology, University of Jyväskylä, Jyväskylä, Finland
| | - J Räsänen
- Department of Dermatology and Allergology, Päijät-Häme Social and Health Care Group, Lahti, Finland.,Department of Dermatology, Faculty of Medicine and Health Technology, Tampere University Hospital and Tampere University, Tampere, Finland
| | - L Annala
- Faculty of Information Technology, University of Jyväskylä, Jyväskylä, Finland
| | - E Snellman
- Department of Dermatology, Faculty of Medicine and Health Technology, Tampere University Hospital and Tampere University, Tampere, Finland.,Department of Dermatology, Satasairaala, Pori, Finland
| | - N Neittaanmäki
- Departments of Pathology and Dermatology, Institutes of Biomedicine and Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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17
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Imai S, Tani T, Ishikawa Y, Tako Y, Takaku Y, Hisamatsu S. Short-term metabolism of biologically incorporated 125I ingested by olive flounder (Paralichthys olivaceus). J Environ Radioact 2020; 214-215:106161. [PMID: 32063287 DOI: 10.1016/j.jenvrad.2020.106161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 01/10/2020] [Accepted: 01/10/2020] [Indexed: 06/10/2023]
Abstract
Iodine-129 with a long half-time of 1.6 × 107 y was discharged into the Pacific Ocean during the final safety tests of the first commercial nuclear fuel reprocessing plant in Japan, at Rokkasho, Aomori Prefecture. Olive flounder (Paralichthys olivaceus) is an important fishery along this coast. It is necessary to determine whether 129I accumulates in this species to assess the possible public acceptance. We developed a short-term metabolism model of 125I in the flounder using retention data for 1-6 days after the olive flounder had ingested a freshwater fish species, medaka (Oryzias latipes), that had been labeled with 125I by keeping them in water containing 125I for 7 days. A single compartment model constructed from whole-body retention data for 125I in the olive flounder, excluding the gastrointestinal tract and its contents, revealed a biological half-time of 2.9 days for 125I. When the gill and other tissues were separated to individual compartments, the biological half-time in the gill was three times longer than that in the other tissue, though the half-time in the gill is not statistically significant. The distribution of 125I among various tissues in the flounder 6 days after the ingestion of labeled medaka once a day for 6 days differed from that of stable I, suggesting that the biological half-time is longer in certain tissues. Further study is necessary to elucidate the metabolism of radioiodine in the flounder.
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Affiliation(s)
- Shoko Imai
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan.
| | - Takashi Tani
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan
| | - Yoshio Ishikawa
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan
| | - Yasuhiro Tako
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan
| | - Yuichi Takaku
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan
| | - Shun'ichi Hisamatsu
- Department of Radioecology, Institute for Environmental Sciences, 1-7 Ienomae, Obuchi, Rokkasho, Kamikita, Aomori, 039-3212, Japan
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18
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Komatsu T, Ohara N, Hirota N, Yoneoka Y, Tani T, Terajima K, Ozawa T, Sone H. Isolated Adrenocorticotropic Hormone Deficiency Presenting with Severe Hyponatremia and Rhabdomyolysis: A Case Report and Literature Review. Am J Case Rep 2019; 20:1857-1863. [PMID: 31827062 PMCID: PMC6931390 DOI: 10.12659/ajcr.918427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 10/08/2019] [Indexed: 01/04/2023]
Abstract
BACKGROUND Isolated adrenocorticotropic hormone deficiency (IAD) is a rare disorder characterized by central adrenal insufficiency (AI) but normal secretion of pituitary hormones other than adrenocorticotropic hormone. IAD usually presents with unspecific symptoms of AI, such as anorexia and fatigue, but some patients present with a variety of atypical manifestations. Rhabdomyolysis is a potentially life-threatening clinical syndrome caused by skeletal muscle injury with the release of muscle cell contents into the circulation. A wide variety of disorders can cause rhabdomyolysis. Herein, we report an unusual case of IAD presenting with hyponatremia and rhabdomyolysis. CASE REPORT A 67-year-old Japanese woman with a 2-month history of anorexia and fatigue was diagnosed with severe hyponatremia (serum sodium, 118 mEq/L) and rhabdomyolysis (serum creatine phosphokinase, 6968 IU/L), after 2 days of vomiting and muscle weakness. Physical and laboratory findings did not show dehydration or peripheral edema. Her rhabdomyolysis resolved with normalization of serum sodium levels during administration of sodium chloride. However, her anorexia and fatigue remained unresolved. After reducing the amount of sodium chloride administered, the patient still had hyponatremia. Detailed endocrinological examinations indicated IAD; her hyponatremia was associated with inappropriately high plasma arginine vasopressin levels. The patient received corticosteroid replacement therapy, which resolved her anorexia, fatigue, excessive arginine vasopressin, and hyponatremia. CONCLUSIONS This case highlights the importance of considering the possibility of central AI in patients with hyponatremia and excessive arginine vasopressin levels. In addition, rhabdomyolysis associated with hyponatremia can be an important manifestation of IAD.
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Affiliation(s)
- Takeshi Komatsu
- Department of Endocrinology and Metabolism, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata City, Niigata, Japan
| | - Nobumasa Ohara
- Department of Endocrinology and Metabolism, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata City, Niigata, Japan
| | - Naoko Hirota
- Department of Internal Medicine, Niigata Prefectural Tokamachi Hospital, Niigata City, Niigata, Japan
| | - Yuichiro Yoneoka
- Department of Neurosurgery, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata City, Niigata, Japan
| | - Takashi Tani
- Department of Neurology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata City, Niigata, Japan
| | - Kenshi Terajima
- Department of Neurology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata City, Niigata, Japan
| | - Tetsutaro Ozawa
- Department of Neurology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Niigata City, Niigata, Japan
| | - Hirohito Sone
- Department of Hematology, Endocrinology and Metabolism, Niigata University Faculty of Medicine, Niigata City, Niigata, Japan
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19
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Tani T, Fujiwara M, Orimo H, Shimizu A, Narisawa S, Pinkerton AB, Millán JL, Tsuruoka S. Inhibition of tissue-nonspecific alkaline phosphatase protects against medial arterial calcification and improves survival probability in the CKD-MBD mouse model. J Pathol 2019; 250:30-41. [PMID: 31509234 DOI: 10.1002/path.5346] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/30/2019] [Accepted: 09/05/2019] [Indexed: 01/07/2023]
Abstract
Medial arterial calcification (MAC) is a major complication of chronic kidney disease (CKD) and an indicator of poor prognosis. Aortic overexpression of tissue-nonspecific alkaline phosphatase (TNAP) accelerates MAC formation. The present study aimed to assess whether a TNAP inhibitor, SBI-425, protects against MAC and improves survival probability in a CKD-mineral and bone disorder (MBD) mouse model. CKD-MBD mice were divided in three groups: vehicle, SBI-10, and SBI-30. They were fed a 0.2% adenine and 0.8% phosphorus diet from 14 to 20 weeks of age to induce CKD, followed by a high-phosphorus (0.2% adenine and 1.8% phosphorus) diet for another 6 weeks. At 14-20 weeks of age, mice in the SBI-10 and SBI-30 groups were given 10 and 30 mg/kg SBI-425 by gavage once a day, respectively, while vehicle-group mice were given distilled water as vehicle. Control mice were fed a standard chow (0.8% phosphorus) between the ages of 8 and 20 weeks. Computed tomography imaging, histology, and aortic tissue calcium content revealed that, compared to vehicle animals, SBI-425 nearly halted the formation of MAC. Mice in the control, SBI-10 and SBI-30 groups exhibited 100% survival, which was significantly better than vehicle-treated mice (57.1%). Aortic mRNA expression of Alpl, encoding TNAP, as well as plasma and aortic tissue TNAP activity, were suppressed by SBI-425 administration, whereas plasma pyrophosphate increased. We conclude that a TNAP inhibitor successfully protected the vasculature from MAC and improved survival rate in a mouse CKD-MBD model, without causing any adverse effects on normal skeletal formation and residual renal function. © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Takashi Tani
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan.,Department of Metabolism and Nutrition, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Megumi Fujiwara
- Department of Metabolism and Nutrition, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Hideo Orimo
- Department of Metabolism and Nutrition, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Akira Shimizu
- Department of Analytic Human Pathology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Sonoko Narisawa
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | | | - José Luis Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Shuichi Tsuruoka
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
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20
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Salmivuori M, Grönroos M, Tani T, Pölönen I, Räsänen J, Annala L, Snellman E, Neittaanmäki N. 115 Hexylaminolevulinate and Aminolevulinic acid Nanoemulsion have Similar Tolerability, Initial Efficacy and Cosmetic Outcome as Methylaminolevulinate in Photodynamic Therapy of Basal Cell Carcinoma in a Prospective Randomized Double-blinded Trial. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Tani T, Okamoto K, Fujiwara M, Katayama A, Tsuruoka S. Metabolomics analysis elucidates unique influences on purine / pyrimidine metabolism by xanthine oxidoreductase inhibitors in a rat model of renal ischemia-reperfusion injury. Mol Med 2019; 25:40. [PMID: 31438839 PMCID: PMC6704627 DOI: 10.1186/s10020-019-0109-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 08/06/2019] [Indexed: 12/19/2022] Open
Abstract
Background Clinically applied as anti-gout drugs, xanthine oxidoreductase (XOR) inhibitors, especially the potent, selective, non-purine-analog XOR inhibitors febuxostat and topiroxostat, exert organ-protective effects. We tested the hypothesis that preservation of tissue concentrations of high-energy phosphates, such as ATP and ADP, contributes to organ-protective effects through CE-TOFMS metabolomics. Methods Rats were subjected to 30 min of renal ischemia-reperfusion (I/R) injury 60 min after oral administration of 10 mg/kg febuxostat, 10 mg/kg topiroxostat, 50 mg/kg allopurinol, or vehicle. Results In non-purine-analog XOR inhibitor-treated groups, renal concentrations of high-energy phosphates were greater before and after I/R injury, and renal adenine compounds were less depleted by I/R injury than in the vehicle and allopurinol groups. These findings were well in accordance with the proposed hypothesis that the recomposition of high-energy phosphates is promoted by non-purine-analog XOR inhibitors via the salvage pathway through blockade of hypoxanthine catabolism, whereas non-specific inhibitory effects of allopurinol on purine/pyrimidine enzymes impede this re-synthesis process. Conclusions This metabolic approach shed light on the physiology of the organ-protective effects of XOR inhibitors. Electronic supplementary material The online version of this article (10.1186/s10020-019-0109-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Takashi Tani
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan. .,Department of Metabolism and Nutrition, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan.
| | - Ken Okamoto
- Department of Metabolism and Nutrition, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Megumi Fujiwara
- Department of Metabolism and Nutrition, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Akira Katayama
- Department of Metabolism and Nutrition, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Shuichi Tsuruoka
- Department of Nephrology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
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22
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Ohara N, Hirokawa M, Kobayashi M, Ikeda Y, Yoneoka Y, Seki Y, Akiyama K, Tani T, Terajima K, Ozawa T. Reversible Non-parkinsonian Bradykinesia with Impaired Frontal Lobe Function as the Predominant Manifestation of Adrenal Insufficiency. Intern Med 2018; 57:3399-3406. [PMID: 30101905 PMCID: PMC6306535 DOI: 10.2169/internalmedicine.1101-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
A 69-year-old Japanese man with a history of suprasellar surgery and irradiation developed bradykinesia and mild fatigue without muscle weakness, myalgia, pyramidal or extrapyramidal signs, parkinsonian symptoms, or ataxia. An endocrinological work-up revealed anterior hypopituitarism associated with secondary adrenal insufficiency. Higher brain function tests indicated an impaired frontal lobe function. The patient's bradykinesia, fatigue, and frontal lobe dysfunction improved within 2 weeks after the initiation of corticosteroid replacement therapy. To our knowledge, this is the first reported case of adrenal insufficiency manifesting as non-parkinsonian bradykinesia. Physicians should consider reversible non-parkinsonian bradykinesia associated with frontal lobe dysfunction as an unusual manifestation of adrenal insufficiency.
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Affiliation(s)
- Nobumasa Ohara
- Department of Endocrinology and Metabolism, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Mayuko Hirokawa
- Department of Endocrinology and Metabolism, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Michi Kobayashi
- Department of Endocrinology and Metabolism, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Yohei Ikeda
- Department of Radiology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Yuichiro Yoneoka
- Department of Neurosurgery, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Yasuhiro Seki
- Department of Neurosurgery, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Katsuhiko Akiyama
- Department of Neurosurgery, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Takashi Tani
- Department of Neurology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Kenshi Terajima
- Department of Neurology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
| | - Tetsutaro Ozawa
- Department of Neurology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
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Tani T, Fukui T, Sunata K, Funatsu Y, Koh H. P3.01-98 The Onset and Clinical Course of Transverse Myelopathy with Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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24
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Azumi Y, Tani T, Ishibashi K, Konda T, Sumida T, Sasaki Y, Ota M, Kim K, Kitai T, Yamane T, Kobori A, Ehara N, Kinoshita M, Kaji S, Furukawa Y. 1470Impact of left atrial enlargement on very long-term outcomes in patients with hypertrophic cardiomyopathy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Azumi
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - T Tani
- Kobe City College of Nursing, kobe, Japan
| | - K Ishibashi
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - T Konda
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - T Sumida
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - Y Sasaki
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - M Ota
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - K Kim
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - T Kitai
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - T Yamane
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - A Kobori
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - N Ehara
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - M Kinoshita
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - S Kaji
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
| | - Y Furukawa
- Kobe City Medical Center General Hospital, Cardiovascular Medicine, Kobe, Japan
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Nakayama Y, Shinohara M, Tani T, Kawaguchi T, Furuta T, Izawa T, Kaise H, Miyazaki W, Nakano Y. The Plasmin Heavy Chain - Urokinase Conjugate: A Specific Thrombolytic Agent. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1661684] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryLow molecular weight urokinase (LMW-UK) was coupled to the heavy chain of plasmin to make it able to bind to fibrin. The purified conjugate (PHC-UK conjugate), which consisted of equimolar concentrations of each starting material had a molecular weight of 93,600, bound tightly to fibrin-monomer-Sepharose and was not washed off with 1 M NaCl, but was eluted specifically with s-amino caproic acid. The conjugate showed higher fibrinolytic activity than HMW-UK. A control conjugate prepared by coupling human serum albumin to LMW-UK (HSA-UK conjugate) showed the same fibrinolytic activity as HMW-UK. The half-lives of these two conjugates in rabbits were about 3 times that of HMW-UK. In an experimental pulmonary embolism model in rabbits, the PHC-UK conjugate showed about 10 times higher thrombolytic activity than HMW-UK, while the HSA-UK conjugate showed similar thrombolytic activity as HMW-UK, and moreover caused severe systemic fibrinogen breakdown. Thus the significant increase in thrombolytic activity after injection of PHC-UK conjugate into rabbits may be due to its newly acquired fibrin binding activity, and not to increase in its half-life. It is concluded that the PHC-UK conjugate may be useful in treatment of thrombosis.
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Affiliation(s)
- Y Nakayama
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
| | - M Shinohara
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
| | - T Tani
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
| | - T Kawaguchi
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
| | - T Furuta
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
| | - T Izawa
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
| | - H Kaise
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
| | - W Miyazaki
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
| | - Y Nakano
- Tokushima Research Institute, Otsuka Pharmaceutical Co. Ltd., Tokushima, Japan
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Wada R, Takaki H, Matsuda T, Tani T, Taki K, Saito H. Transcatheter embolization for the management of traumatic coronary venous injury. Diagn Interv Imaging 2018; 99:585-587. [PMID: 29716846 DOI: 10.1016/j.diii.2018.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/08/2018] [Accepted: 04/09/2018] [Indexed: 11/24/2022]
Affiliation(s)
- R Wada
- Department of Radiology, Sapporo Higashi Tokushukai hospital, Hokkaido, Japan.
| | - H Takaki
- Department of Radiology, Hyogo College of medicine, Hyogo, Japan
| | - T Matsuda
- Department of Emergency and Acute Care medicine, Sapporo Higashi Tokushukai hospital, Hokkaido, Japan
| | - T Tani
- Division of Cardiology, Sapporo Higashi Tokushukai hospital, Hokkaido, Japan
| | - K Taki
- Department of Emergency and Acute Care medicine, Sapporo Higashi Tokushukai hospital, Hokkaido, Japan
| | - H Saito
- Department of Radiology, Sapporo Higashi Tokushukai hospital, Hokkaido, Japan
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Hasegawa A, Kuroha Y, Tani T, Takahashi T, Matsubara N, Koike R. Association between sleep disturbances in Parkinson’s disease and clinical course: A questionnaire-based study. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Tani T, Orimo H, Shimizu A, Tsuruoka S. SP359HYPERPHOSPHATEMIA PROGRESSES CHRONIC KIDNEY DISEASE - MINERAL BONE DISEASE IN VASCULAR AND BONES: ESTABLISHMENT AND ANALYSIS OF NOVEL MOUSE MODEL. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx147.sp359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Shinohara K, Sato M, Kawashima H, Tsuzuki K, Suzuki S, Urata K, Isei N, Tani T, Kikuchi K, Shibata T, Kimura H, Miura Y, Kusama Y, Yamamoto M. Ripple Reduction with Ferritic Insert in JFT-2M. Fusion Science and Technology 2017. [DOI: 10.13182/fst06-a1094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Shinohara
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - M. Sato
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - H. Kawashima
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - K. Tsuzuki
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - S. Suzuki
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - K. Urata
- Mitsubishi Heavy Industries, Ltd., Kobe Shipyard and Machinery Works, 1-1-1 Wadasaki, Hyogo-ku Kobe, Hyogo 652-8585, Japan
| | - N. Isei
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - T. Tani
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - K. Kikuchi
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - T. Shibata
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - H. Kimura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - Y. Miura
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - Y. Kusama
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
| | - M. Yamamoto
- Japan Atomic Energy Research Institute, Naka Fusion Research Establishment, Naka, Ibaraki 311-0193, Japan
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Hayashi H, Takamura H, Ohbatake Y, Nakanuma S, Tajima H, Fushida S, Onishi I, Tani T, Shimizu K, Ohta T. Postoperative changes in neutrophil-to-lymphocyte ratio and platelet count: A simple prognostic predictor for adult-to-adult living donor liver transplantation. Asian J Surg 2017; 41:341-348. [PMID: 28365200 DOI: 10.1016/j.asjsur.2017.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/06/2017] [Accepted: 02/13/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND/OBJECTIVE The neutrophil-to-lymphocyte ratio (NLR) is a simple index that represents systemic inflammatory change. The number of platelets is also known to reflect both post-transplant graft regeneration and dysfunction. Thus, we aimed to investigate the usefulness of NLR and platelet number in predicting the clinical course after adult-to-adult living donor liver transplantation (AA-LDLT) in the acute postoperative period in recipients. METHODS Between January 1999 and December 2013, 61 patients underwent their first AA-LDLT at our institute. We retrospectively analyzed their clinical data, including NLR and number of platelets, until postoperative day 14, and evaluated their ability to predict prognosis after AA-LDLT. RESULTS The optimal cutoff values of postoperative maximum NLR and maximum platelets to predict prognosis were 50 and 80 × 103/μL, respectively. The 1- and 5-year survival rates were 87.5% and 79.1% in the normal maximum NLR group, respectively, and 46.2% for both in the high maximum NLR group (p = 0.0033). The 1- and 5-year survival rates, respectively, were 90.9% and 84.1% in the high maximum platelets group and 47.1% and 41.2% in the low maximum platelets group (p < 0.0001). In multivariate analysis, maximum NLR ≥ 50 and maximum platelets < 80 × 103/μL were independently associated with 1-year mortality. CONCLUSION A high NLR and a low platelet count during acute postoperative period might correlate with poor prognosis after AA-LDLT.
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Affiliation(s)
- Hironori Hayashi
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan.
| | - Hiroyuki Takamura
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan
| | - Yoshinao Ohbatake
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan
| | - Shinichi Nakanuma
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan
| | - Hidehiro Tajima
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan
| | - Sachio Fushida
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan
| | - Ichiro Onishi
- Department of Surgery, National Hospital Organization Kanazawa Medical Center, 1-1 Shimoishibiki-machi, Kanazawa, Ishikawa 920-8650, Japan
| | - Takashi Tani
- Department of Surgery, Public Central Hospital of Matto Ishikawa, 3-8 Kuramitsu, Hakusan, Ishikawa 924-0865, Japan
| | - Koichi Shimizu
- Department of Surgery, Toyama Prefectural Central Hospital, 2-2-78 Nishinagae, Toyama, Toyama 930-8550, Japan
| | - Tetsuo Ohta
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan
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Tani T. Electronic and Molecular Structures of Dyes VI: Estimation of Redox Potentials and Excitation Energies of Cyanine Dyes by Means of HMO Calculation with Regard to Steric Effects. ACTA ACUST UNITED AC 2016. [DOI: 10.1080/00223638.1971.11737604] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Tani T, Tasaka T, Murofushi M, Hosoi K, Hirano A. Silver clusters of photographic interest Part 5: formation of R centres and P centres by reduction sensitization and light absorption of silver bromide grains. The Imaging Science Journal 2016. [DOI: 10.1080/13682199.1999.11736447] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Nakane S, Yoshioka M, Oda N, Tani T, Chida K, Suzuki M, Funakawa I, Inukai A, Hasegawa K, Kuroda K, Mizoguchi K, Shioya K, Sonoda Y, Matsuo H. The characteristics of camptocormia in patients with Parkinson's disease: A large cross-sectional multicenter study in Japan. J Neurol Sci 2015; 358:299-303. [DOI: 10.1016/j.jns.2015.09.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Revised: 08/14/2015] [Accepted: 09/06/2015] [Indexed: 10/23/2022]
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Ikeuchi M, Izumi M, Aso K, Sugimura N, Kato T, Tani T. Effects of intra‐articular hyaluronic acid injection on immunohistochemical characterization of joint afferents in a rat model of knee osteoarthritis. Eur J Pain 2015; 19:334-40. [DOI: 10.1002/ejp.551] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2014] [Indexed: 12/11/2022]
Affiliation(s)
- M. Ikeuchi
- Department of Orthopaedic Surgery Kochi Medical School Kochi University Nankoku Japan
| | - M. Izumi
- Department of Orthopaedic Surgery Kochi Medical School Kochi University Nankoku Japan
| | - K. Aso
- Department of Orthopaedic Surgery Kochi Medical School Kochi University Nankoku Japan
| | - N. Sugimura
- Department of Orthopaedic Surgery Kochi Medical School Kochi University Nankoku Japan
| | - T. Kato
- Department of Orthopaedic Surgery Kochi Medical School Kochi University Nankoku Japan
| | - T. Tani
- Department of Orthopaedic Surgery Kochi Medical School Kochi University Nankoku Japan
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Ishii K, Kanamoto A, Miyanaga S, Noto M, Takeda T, Tani T, Yagi M. [The present status of CapeOX as adjuvant chemotherapy for colorectal cancer]. Gan To Kagaku Ryoho 2015; 42:319-322. [PMID: 25812500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report on treatment with capecitabine plus oxaliplatin (CapeOX) as adjuvant therapy for patients with colorectal cancer. Twenty patients were treated. The mean age was 69 years; 15 patients were male and 5 were female. Thirteen patients with colon cancer and 7 patients with rectal cancer were enrolled after curative surgery. In total, 55% of patients completed the planned number of treatment cycles. Dose modifications were required for oxaliplatin in 60% of patients and for capecitabine in 67% of patients. The median relative dose intensities of oxaliplatin and capecitabine were 86% and 88%, respectively. Treatment-related Grade 3/4 neutropenia and Grade 3/4 thrombocytopenia were documented in 2 and 3 patients, respectively. Grade 3/4 hand-foot syndrome occurred in 1 patient. Treatment with CapeOX as adjuvant therapy for patients with colorectal cancer seems to be safe.
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Affiliation(s)
- Kaname Ishii
- Dept. of Surgery, Public Central Hospital of Matto Ishikawa
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37
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Takamura H, Nakanuma S, Hayashi H, Tajima H, Kakinoki K, Kitahara M, Sakai S, Makino I, Nakagawara H, Miyashita T, Okamoto K, Nakamura K, Oyama K, Inokuchi M, Ninomiya I, Kitagawa H, Fushida S, Fujimura T, Onishi I, Kayahara M, Tani T, Arai K, Yamashita T, Yamashita T, Kitamura H, Ikeda H, Kaneko S, Nakanuma Y, Matsui O, Ohta T. Severe Veno-occlusive Disease/Sinusoidal Obstruction Syndrome After Deceased-donor and Living-donor Liver Transplantation. Transplant Proc 2014; 46:3523-35. [DOI: 10.1016/j.transproceed.2014.09.110] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2014] [Accepted: 09/17/2014] [Indexed: 12/13/2022]
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Nakanuma S, Takamura H, Shoji M, Hayashi H, Tajima H, Nakagawara H, Miyashita T, Kitagawa H, Tani T, Ohta T. Case Report of an ABO-Incompatible Living-Donor Liver Transplant for a Familial Amyloid Polyneuropathy Patient. EXP CLIN TRANSPLANT 2014; 13:479-81. [PMID: 25247607 DOI: 10.6002/ect.2014.0076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Liver transplant is a treatment for familial amyloid polyneuropathy. Few cases of ABO-incompatible living-donor liver transplant for familial amyloid polyneuropathy exist. The outcome of an ABO-incompatible living-donor liver transplant has improved recently, using local infusion therapy and rituximab prophylaxis. Here, we describe a successful ABO-incompatible living-donor liver transplant in a patient with familial amyloid polyneuropathy in whom disease progression ceased at 2 years' follow-up. Additionally, no evidence of acute or chronic rejection, or adverse events of the immunosuppressive therapy, was seen. As a postoperative complication, fatty changes in the grafted liver because of malnutrition or adverse events of corticosteroids were confirmed by a liver biopsy taken early after transplant. The main cause of malnutrition was considered to be gastrointestinal dysfunction caused by familial amyloid polyneuropathy. Therefore, before deterioration of digestive function, liver transplants should be considered for familial amyloid polyneuropathy. This case suggests that an ABO-incompatible living-donor liver transplant may provide greater opportunities for familial amyloid polyneuropathy patients.
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Affiliation(s)
- Shinichi Nakanuma
- From the Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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Sugimura N, Ikeuchi M, Izumi M, Kawano T, Aso K, Kato T, Ushida T, Yokoyama M, Tani T. Repeated intra-articular injections of acidic saline produce long-lasting joint pain and widespread hyperalgesia. Eur J Pain 2014; 19:629-38. [PMID: 25158678 DOI: 10.1002/ejp.584] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2014] [Indexed: 11/08/2022]
Abstract
BACKGROUND Synovial fluid in inflamed joint shows a drop in pH, which activates proton-gated ion channels in nociceptors. No studies have ever tried to develop and characterize acid-induced joint pain. METHODS Rats were injected intra-articularly with pH 4.0 acidic saline twice, 5 days apart. Pain-related behaviour tests including weight-bearing asymmetry, paw withdrawal threshold and knee compression threshold were conducted. To clarify the roles of proton-gated ion channels, rats were injected intra-articularly with selective antagonists for ASIC1a, ASIC3 and TRPV1 on day 5 (before the second injection) or on day 14. Underlying peripheral and central pain mechanisms were evaluated using joint histology, interleukin-1β concentrations in the synovium, single-fibre recording of the knee afferent and expression of phosphorylated cyclic adenosine monophosphate-responsive element-binding protein (p-CREB) in the spinal dorsal horn. RESULTS Repeated injections of acidic saline induced weight-bearing asymmetry, decrease in paw withdrawal threshold and knee compression threshold bilaterally, which lasted until day 28. Early administration of ASIC3 antagonist reduced the bilateral and long-lasting hyperalgesia. Neither articular degeneration nor synovial inflammation was observed. C-fibre of the knee afferent was activated by acidic saline, which was attenuated by pre-injection of ASIC3 antagonist. p-CREB expression was transiently up-regulated bilaterally on day 6, but not on day 14. CONCLUSION We developed and characterized a model of acid-induced long-lasting bilateral joint pain. Peripheral ASIC3 and spinal p-CREB played important roles for the development of hyperalgesia. This animal model gives insights into the mechanisms of joint pain, which is helpful in developing better pain treatments.
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Affiliation(s)
- N Sugimura
- Department of Orthopaedic Surgery, Kochi Medical School, Kochi University, Nankoku, Japan
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Hayashi H, Takamura H, Higashi Y, Shoji M, Nakanuma SI, Tajima H, Kitagawa H, Fushida S, Kosaka K, Kitahara M, Kakinoki K, Tani T, Kaneko S, Ohta T. Relationship between midgut malrotation and anatomy of the hepatoduodenal ligament: a rare anatomical variation in a deceased donor. Transplant Proc 2014; 46:1087-9. [PMID: 24815135 DOI: 10.1016/j.transproceed.2013.09.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 09/20/2013] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Anatomical variations around the hepatoduodenal ligament greatly influence surgical procedures and the difficulty of operations. Here, we report the case of a deceased donor with midgut malrotation (MgM) and anatomical variation. We also present an anatomical comparison between MgM and normal cases. CASE REPORT The donor, a male in his 60s, was diagnosed with MgM based on preoperative computed tomography. Intraoperatively, the liver graft was harvested from the proper hepatic artery (PHA), but its length was too short for reconstruction. Therefore, the hepatic artery was reconstructed at both the left and right hepatic arteries. METHODS The length of the proper hepatic artery (l-PHA) and main trunk of the portal vein (l-PV) was compared between MgM and control groups (n = 9) using computed tomography. The ratio of PHA (r-PHA) and PV (r-PV), which was calculated as the l-PHA or l-PV divided by the patient's height, was also compared. RESULTS The r-PV was 1.3% in the MgM group and 1.6% in the control group (P = .09). The r-PHA was 0.23% in the MgM group and 0.92% in the control group (P < .01). Thus, the PHA was significantly shorter in the MgM group. Additionally, anatomical variations of the hepatic artery were confirmed in four cases. CONCLUSION Preoperative radiological evaluation is not always adequate for identifying anatomical abnormalities in deceased donors. MgM is a rare but important anomaly because of the possibility of associated anatomical variations of the hepatic artery.
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Affiliation(s)
- H Hayashi
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan.
| | - H Takamura
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Y Higashi
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - M Shoji
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - S-I Nakanuma
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - H Tajima
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - H Kitagawa
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - S Fushida
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - K Kosaka
- Division of Cardiovascular Medicine, Department of Radiology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - M Kitahara
- Division of Environmental Science, Department of Gastroenterology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - K Kakinoki
- Division of Environmental Science, Department of Gastroenterology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - T Tani
- Department of Surgery, Public Central Hospital of Matto Ishikawa, Hakusan, Japan
| | - S Kaneko
- Division of Environmental Science, Department of Gastroenterology, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - T Ohta
- Division of Cancer Medicine, Department of Gastroenterologic Surgery, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
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Shimizu T, Sonoda H, Murata S, Takebayashi K, Ohta H, Miyake T, Mekata E, Shiomi H, Naka S, Tani T. Hyperthermic intraperitoneal chemotherapy using a combination of mitomycin C,5-fluorouracil, and oxaliplatin in patients at high risk of colorectal peritoneal metastasis: A Phase I clinical study. Eur J Surg Oncol 2013; 40:521-528. [PMID: 24388411 DOI: 10.1016/j.ejso.2013.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 11/15/2013] [Accepted: 12/05/2013] [Indexed: 01/19/2023] Open
Abstract
INTRODUCTION The drugs and protocols used for hyperthermic intraperitoneal chemotherapy (HIPEC) vary among institutions. Here we show the efficacy of the 3-drug combination of mitomycin C (MMC), 5-fluorouracil (5FU), and oxaliplatin (OHP) in an in vitro simulation of HIPEC and the safety of HIPEC with these drugs during a Phase I study of patients at high risk of developing colorectal peritoneal metastasis. METHODS To simulate HIPEC, we used HCT116 and WiDr cells to assess the growth inhibitory efficacy of MMC 2 μg/mL, 5FU 200 μg/mL, and OHP 40 μg/mL as single drugs or their combination after an exposure time of 30 min at 37 or 42 °C. In addition, nine patients underwent surgical resection of tumors and HIPEC with MMC, 5FU, and an escalating dose of OHP (90/110/130 mg/m²). Dose-limiting toxicity was monitored. RESULTS In the simulation, the 3-drug combination showed marked tumor-suppressive effects compared with those from ten times higher dose of OHP 400 μg/mL, with significant augmentation under hyperthermic conditions. No dose-limiting toxicity occurred in the clinical study. Dose escalation was completed at the final level of OHP. CONCLUSIONS The MMC-5FU-OHP combination showed marked growth inhibition against colorectal cancer cells under hyperthermic conditions in vitro. In the phase I study, the recommended dose of OHP was determined as 130 mg/m² when used with MMC and 5FU; HIPEC using MMC-5FU-OHP appears to be safe and feasible for patients at high risk of colorectal peritoneal metastasis.
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Affiliation(s)
- T Shimizu
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan.
| | - H Sonoda
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
| | - S Murata
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
| | - K Takebayashi
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
| | - H Ohta
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
| | - T Miyake
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
| | - E Mekata
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
| | - H Shiomi
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
| | - S Naka
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
| | - T Tani
- Department of Surgery, Shiga University of Medical Science, Seta-Tsukinowacho, Otsu, Shiga 520-2192, Japan
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42
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Tani T, Ishihara C, Kaneko T, Tsuruoka S, Iino Y. Multiple cerebral lesions as the unique complication of idiopathic retroperitoneal fibrosis. Mod Rheumatol 2013; 25:468-71. [PMID: 24252042 DOI: 10.3109/14397595.2013.843754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We present a case of idiopathic retroperitoneal fibrosis (IRF) complicated by severe renal failure and multiple intracranial lesions, which are probable results of cerebral vasculitis. IRF is an idiopathic hyperplasia of the retroperitoneal tissue that often entraps the ureters and causes post-renal failure. While the etiology of IRF is unclear, researchers consider IRF a systemic autoimmune disease complicated by immune-mediated vasculitides. The chief complaints of the patient were cognitive disorders, and brain MRI findings revealed multiple intracranial lesions with accompanying central degeneration. Given that vasogenic cerebral edemas derive from uremia, we speculated that the lesions in our case were related to more destructive changes such as aortic and periaortic inflammation. Details on this case manifesting rare cerebrovascular complications may help elucidate the pathogenesis of IRF.
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Affiliation(s)
- Takashi Tani
- Department of Nephrology, Nippon Medical School , Tokyo , Japan
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43
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Takamura H, Nakanuma S, Hayashi H, Tajima H, Kakinoki K, Sakai S, Makino I, Nakagawara H, Miyashita T, Okamoto K, Nakamura K, Oyama K, Inokuchi M, Ninomiya I, Kitagawa H, Fushida S, Fujimura T, Ohnishi I, Kayahara M, Tani T, Arai K, Yamashita T, Yamashita T, Kitamura H, Ikeda H, Kaneko S, Nakanuma Y, Matsui O, Ohta T. Evaluation of eligibility criteria in living donor liver transplantation for hepatocellular carcinoma by α-SMA-positive cancer-associated fibroblasts. Oncol Rep 2013; 30:1561-74. [PMID: 23863893 PMCID: PMC3810217 DOI: 10.3892/or.2013.2616] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Accepted: 06/07/2013] [Indexed: 12/26/2022] Open
Abstract
The eligibility criteria of liver transplantation (LT) for hepatocellular carcinoma (HCC) must clearly confirm the prognosis not only from pathological diagnosis but also from pre-operative imaging diagnosis. In the present study, we evaluated published eligibility criteria for LT based on both pre-operative imaging diagnosis and pathological diagnosis using living donor liver transplantation (LDLT) recipients at our hospital by α-smooth muscle actin (SMA)-positive cancer-associated fibroblasts (CAFs) in HCC. The Up-to-seven (Up-to-7), Asan and Tokyo criteria were evaluated, in both overall survival and HCC disease-free survival, to be statistically significantly beneficial criteria to define post-LDLT prognosis. Recipients only within Up-to-7 criteria based on both pre-operative imaging diagnosis and pathological diagnosis survived without HCC recurrence. Recipients with proliferation of α-SMA-positive CAFs in HCC had significantly poorer prognosis. All survival recipients without HCC recurrence, who were above the Up-to-7 criteria in pathological diagnosis, had no proliferation of α-SMA-positive CAFs. As a result of multivariate analysis, the significant independent factors defining prognosis of recipients after LDLT for HCC were Up-to-7 criteria and proliferation of α-SMA-positive CAFs. The ideal eligibility criteria for LDLT with HCC is Up-to-7 criteria and α-SMA-positive CAFs was considered to be an important factor in HCC recurrence. LDLT should be limited to recipients within Up-to-7 criteria or without proliferation of α-SMA-positive CAFs.
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Affiliation(s)
- Hiroyuki Takamura
- Department of Gastroenterologic Surgery, Graduate School of Medicine, Kanazawa University, Kanazawa, Ishikawa 920-8641, Japan.
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44
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Nakane S, Yoshioka M, Oda N, Tani T, Chida K, Suzuki M, Funakawa I, Inukai A, Hasegawa K, Kuroda K, Mizoguchi K, Shioya K, Sonoda Y, Matsuo H. Camptocormia in Parkinson's disease: A multicenter study in Japan. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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45
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Hayashi H, Kitagawa H, Shoji M, Nakanuma SI, Makino I, Oyama K, Inokuchi M, Nakagawara H, Miyashita T, Tajima H, Takamura H, Ninomiya I, Fushida S, Fujimura T, Tani T, Ohta T. Duodenal ulcer penetration into the liver at the previous left hemihepatectomy site. Int J Surg Case Rep 2013; 4:1110-2. [PMID: 24240081 PMCID: PMC3860026 DOI: 10.1016/j.ijscr.2013.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 09/18/2013] [Indexed: 11/27/2022] Open
Abstract
INTRODUCTION Duodenal ulcer penetration into the liver is a rare, but serious complication. Its frequency was thought to have decreased owing to advances in therapies for peptic ulcers. However, we encountered a case in which the duodenal ulcer had penetrated into a previous hemihepatectomy site. PRESENTATION OF CASE A 69-year-old man with a history of left hemihepatectomy 20 months previously presented to the emergency room with sudden-onset abdominal pain and nausea. An upper gastrointestinal examination with a fiberscope revealed a giant ulcer in the duodenal bulb. In addition, a foreign body was detected at the ulcer floor and was strongly suspected of being a ligature from previous hemihepatectomy. DISCUSSION The presence of a gas-filled liver mass and bowel wall thickening with inflammatory changes are important imaging findings for prompt diagnosis of such a condition, but in this case, none of these were reported. Further, no definite abscess was found. Thus, the patient was treated conservatively with a proton pump inhibitor. CONCLUSION This case demonstrates the importance of using absorbable suture materials, adequate lavage in the postoperative peritoneal space and gastroduodenal mucosal protection postoperatively.
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Affiliation(s)
- Hironori Hayashi
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, Ishikawa 920-8641, Japan.
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46
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Ehara N, Furukawa Y, Kaji S, Kinoshita M, Kobori A, Tani T, Kitai T, Kim K, Morimoto T, Kimura T. Effect of preoperative diabetic treatment on long-term cardiovascular outcomes in diabetic patients undergoing coronary revascularization therapy. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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48
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Aso K, Ikeuchi M, Izumi M, Sugimura N, Kato T, Ushida T, Tani T. Nociceptive phenotype of dorsal root ganglia neurons innervating the subchondral bone in rat knee joints. Eur J Pain 2013; 18:174-81. [DOI: 10.1002/j.1532-2149.2013.00360.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2013] [Indexed: 11/10/2022]
Affiliation(s)
- K. Aso
- Department of Orthopedic Surgery, Kochi Medical School; Kochi University; Nankoku Japan
| | - M. Ikeuchi
- Department of Orthopedic Surgery, Kochi Medical School; Kochi University; Nankoku Japan
| | - M. Izumi
- Department of Orthopedic Surgery, Kochi Medical School; Kochi University; Nankoku Japan
| | - N. Sugimura
- Department of Orthopedic Surgery, Kochi Medical School; Kochi University; Nankoku Japan
| | - T. Kato
- Department of Orthopedic Surgery, Kochi Medical School; Kochi University; Nankoku Japan
| | - T. Ushida
- Multidisciplinary Pain Center; Aichi Medical School; Japan
| | - T. Tani
- Department of Orthopedic Surgery, Kochi Medical School; Kochi University; Nankoku Japan
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Onishi I, Kitagawa H, Harada K, Maruzen S, Sakai S, Makino I, Hayashi H, Nakagawara H, Tajima H, Takamura H, Tani T, Kayahara M, Ikeda H, Ohta T, Nakanuma Y. Intraductal papillary neoplasm of the bile duct accompanying biliary mixed adenoneuroendocrine carcinoma. World J Gastroenterol 2013; 19:3161-3164. [PMID: 23716999 PMCID: PMC3662959 DOI: 10.3748/wjg.v19.i20.3161] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2012] [Revised: 03/13/2013] [Accepted: 04/04/2013] [Indexed: 02/06/2023] Open
Abstract
We present the first case of an intraductal papillary neoplasm of the bile duct (IPNB) accompanying a mixed adenoneuroendocrine carcinoma (MANEC). A 74-year-old woman presented with fever of unknown cause. Laboratory data revealed jaundice and liver injury. Contrast-enhanced computed tomography revealed a 20 mm polypoid tumor in the dilated distal bile duct, which exhibited early enhancement and papillary growth. Upper gastrointestinal endoscopy revealed mucus production from the papilla of Vater, characterized by its protruding and dilated orifice. Endoscopic ultrasonography visualized the polypoid tumor in the distal bile duct, but no invasive region was suggested by diagnostic imaging. Therefore, the initial diagnosis was IPNB. After endoscopic nasobiliary drainage, a pylorus-preserving pancreaticoduodenectomy was performed. Pathological examination of the resected bile duct revealed papillary proliferation of biliary-type cells with nuclear atypia, indicating pancreaticobiliary-type IPNB. In addition, solid portions comprised of tumor cells with characteristic salt-and-pepper nuclei were evident. Immunohistochemistry revealed expression of the neuroendocrine marker synaptophysin in this solid component, diagnosing it as a neuroendocrine tumor (NET). Furthermore, the MIB-1 proliferation index of NET was higher than that of IPNB, and microinvasion of the NET component was found, indicating neuroendocrine carcinoma (NET G3). This unique case of MANEC, comprising IPNB and NET, provides insight into the pathogenesis of biliary NET.
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MESH Headings
- Adenocarcinoma/chemistry
- Adenocarcinoma/pathology
- Adenocarcinoma/surgery
- Aged
- Bile Duct Neoplasms/chemistry
- Bile Duct Neoplasms/pathology
- Bile Duct Neoplasms/surgery
- Biomarkers, Tumor/analysis
- Biopsy
- Carcinoma, Neuroendocrine/chemistry
- Carcinoma, Neuroendocrine/pathology
- Carcinoma, Neuroendocrine/surgery
- Carcinoma, Papillary/chemistry
- Carcinoma, Papillary/pathology
- Carcinoma, Papillary/surgery
- Drainage
- Endoscopy, Gastrointestinal
- Endosonography
- Female
- Humans
- Immunohistochemistry
- Neoplasms, Complex and Mixed/chemistry
- Neoplasms, Complex and Mixed/pathology
- Neoplasms, Complex and Mixed/surgery
- Neoplasms, Multiple Primary/chemistry
- Neoplasms, Multiple Primary/pathology
- Neoplasms, Multiple Primary/surgery
- Pancreaticoduodenectomy
- Predictive Value of Tests
- Tomography, X-Ray Computed
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50
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Hayashi H, Takamura H, Tani T, Makino I, Nakagawara H, Tajima H, Kitagawa H, Onishi I, Shimizu K, Ohta T. Partial portal arterialization for hepatic arterial thrombosis after living-donor liver transplant. EXP CLIN TRANSPLANT 2013; 10:247-51. [PMID: 22631061 DOI: 10.6002/ect.2011.0173] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVES The most serious, life-threatening complication after living-donor liver transplant is a hepatic arterial thrombosis. Although possible therapies for acute hepatic arterial thrombosis include revascularization to salvage the graft, or retransplant, these may be difficult to perform owing to technical aspects and donor shortages. Previously, we reported the usefulness of partial portal arterialization in such cases. MATERIALS AND METHODS Four cases of partial portal arterialization for hepatic arterial occlusion after living-donor liver transplant were reviewed. The surgical procedure of partial portal arterializations involves making an arteriovenous shunt via a side-to-side anastomosis, using mesenteric vessels approximately 2 mm in diameter. RESULTS After partial portal arterialization, hepatic arterial flow was not detected, but graft injury owing to hypoxia gradually improved in all cases. In 1 case, occlusion of the arteriovenous shunt itself and the collateral artery to the graft were identified by angiography 45 days after partial portal arterialization. In another case, massive ascites, pleural effusion, and variceal changes of the mesenteric veins owing to portal hypertension were identified, and surgical closure of the shunt was performed 152 days after partial portal arterialization. In the other 2 cases, there were no definite problems related to partial portal arterialization, but the patients died owing to other complications. CONCLUSIONS When hepatic arterial thrombosis occurs after living-donor liver transplant, revascularization should be performed first. However, this sometimes may be difficult, as when the arterial dissection reaches into the graft. Partial portal arterialization is an easy and effective surgical procedure. Therefore, partial portal arterialization appears to be a useful option to gain time until collateral arterial vessels develop or retransplant, even if revascularization cannot be performed.
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Affiliation(s)
- Hironori Hayashi
- Department of Gastroenterologic Surgery, Division of Cancer Medicine, Graduate School of Medical Science, Kanazawa University, Kanazawa, Ishikawa, Japan.
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