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https://www.readbyqxmd.com/read/28522945/current-status-of-endoscopic-balloon-dilation-for-crohn-s-disease
#1
REVIEW
Fumihito Hirai
The therapeutic target in Crohn's disease (CD) has been raised to the achievement of mucosal healing. Although effective treatments that target cytokines and other molecules has been widely used for CD, intestinal strictures are still a major cause of surgery. Endoscopic balloon dilation (EBD) is known to be an effective and safe intervention for intestinal strictures in CD. Since frequent intestinal resection often results in short bowel syndrome and can decrease the quality of life, EBD can help avoid surgery...
April 2017: Intestinal Research
https://www.readbyqxmd.com/read/28522018/salvage-resection-of-recurrent-polyp-after-polypectomy-on-the%C3%A2-colorectal-anastomosis-using-endoscopic-submucosal-dissection
#2
Michiko Wada, Motohiko Kato, Yuichiro Hirai, Toshio Uraoka
No abstract text is available yet for this article.
June 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28521284/cytokine-mediated-activation-of-human-ex-vivo-expanded-v%C3%AE-9v%C3%AE-2-t-cells
#3
Eisuke Domae, Yuya Hirai, Takashi Ikeo, Seiji Goda, Yoji Shimizu
Vγ9Vδ2 T cells, the major subset of the human peripheral blood γδ T-cell, respond to microbial infection and stressed cells through the recognition of phosphoantigens. In contrast to the growing knowledge of antigen-mediated activation mechanisms, the antigen-independent and cytokine-mediated activation mechanisms of Vγ9Vδ2 T cells are poorly understood. Here, we show that interleukin (IL) -12 and IL-18 synergize to activate human ex vivo-expanded Vγ9Vδ2 T cells. Vγ9Vδ2 T cells treated with IL-12 and IL-18 enhanced effector functions, including the expression of IFN-γ and granzyme B, and cytotoxicity...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28510689/chronic-enteropathy-associated-with-slco2a1-gene-ceas-characterization-of-an-enteric-disorder-to-be-considered-in-the-differential-diagnosis-of-crohn-s-disease
#4
Naoki Hosoe, Naoki Ohmiya, Fumihito Hirai, Junji Umeno, Motohiro Esaki, Hirokazu Yamagami, Kei Onodera, Shigeki Bamba, Hiroyuki Imaeda, Shunichi Yanai, Tadakazu Hisamatsu, Haruhiko Ogata, Takayuki Matsumoto
Small intestinal ulcers include mucosal damage caused by drugs, particularly nonsteroidal anti-inflammatory drugs (NSAIDs), infectious diseases, and idiopathic inflammatory bowel disease. Previously, a group of Japanese investigators reported an unusual and uncommon type of enteritis and referred to the condition as chronic nonspecific multiple ulcers of the small intestine (CNSU). CNSU is characterized by chronic blood and protein loss through persistent small intestinal ulcers. Recently, four candidate mutations in the solute carrier organic anion transporter family, member 2A1 (SLCO2A1) gene, encoding a prostaglandin transporter, were identified by whole-exam sequencing in patients with CNSU...
May 16, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28508446/triboluminescence-of-lanthanide-coordination-polymers-with-face-to-face-arranged-substituents
#5
Yuichi Hirai, Takayuki Nakanishi, Yuichi Kitagawa, Koji Fushimi, Tomohiro Seki, Hajime Ito, Yasuchika Hasegawa
Luminescence upon the grinding of solid materials (triboluminescence, TL) has long been a puzzling phenomenon in natural science and has also attracted attention because of its broad application in optics. It has been generally considered that the TL spectra exhibit similar profiles as those of photoluminescence (PL), although they occur from distinct stimuli. Herein, we describe for the first time a large spectral difference between these two physical phenomena using lanthanide(III) coordination polymers with efficient TL and PL properties...
May 16, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28508170/viral-vector-based-evaluation-of-regulatory-regions-in-the-neuron-specific-enolase-nse-promoter-in-mouse-cerebellum-in-vivo
#6
Yoichiro Shinohara, Toshinori Ohtani, Ayumu Konno, Hirokazu Hirai
We investigated the neuron-specific enolase (NSE) promoter in terms of its promoter strength and neuronal specificity in the cerebellum in vivo. The 1.8 kb rat NSE promoter was divided into three regions, A (0.8 kb), B (0.7 kb), and C (0.3 kb), starting from the 5' side. Then, we made various deletion constructs and assessed them by virally expressing GFP under the control of one of the deleted promoters. Removing region A reduced GFP expression to ~6% of that of the original 1.8 kb promoter. Further deletion of region B (presence of region C alone) did not influence the promoter strength, but removing region B from the original 1...
May 15, 2017: Cerebellum
https://www.readbyqxmd.com/read/28507289/cells-reprogramming-to-stem-cells-inhibit-the-reprogramming-of-adjacent-cells-in-the-moss-physcomitrella-patens
#7
Yoshikatsu Sato, Nagisa Sugimoto, Tadayoshi Hirai, Akihiro Imai, Minoru Kubo, Yuji Hiwatashi, Tomoaki Nishiyama, Mitsuyasu Hasebe
Under certain circumstances differentiated cells can be reprogrammed to form stem cells in land plants, but only a portion of the cells reprograms successfully. A long-distance inhibitory signal from reprogrammed cells to surrounding cells has been reported in some ferns. Here we show the existence of anisotropic inhibitory signal to regulate stem cell formation in the moss Physcomitrella patens. When single cells were isolated from a gametophore leaf, over 90% of them were reprogrammed to stem cells with characteristic nuclear expansion...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28505516/induction-of-experimental-autoimmune-orchitis-by-immunization-with-xenogenic-testicular-germ-cells-in-mice
#8
Ning Qu, Hayato Terayama, Yoshie Hirayanagi, Miyuki Kuramasu, Yuki Ogawa, Shogo Hayashi, Shuichi Hirai, Munekazu Naito, Masahiro Itoh
We previously showed that immunization of mice with syngeneic or allogeneic testicular germ cells (TGC) alone induces autoimmune inflammation in the testes without using any adjuvant. In the present study, we examined testicular autoimmune response against xenogenic TGC antigens in mice. The mice were immunized with murine, rat or guinea pig TGC and then the histopathology, delayed type hypersensitivity (DTH) response and humoral autoimmunity were investigated. The results showed that immunization with not only murine but also rat TGC caused experimental autoimmune orchitis (EAO) with hypospermatogenesis in mice, while that with guinea pig TGC could not...
April 27, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28502927/mizoribine-synchronized-methotrexate-therapy-should-be-considered-when-treating-rheumatoid-arthritis-patients-with-an-inadequate-response-to-various-combination-therapies
#9
Keigo Ikeda, Kozo Watanabe, Takuya Hirai, Kana Tanji, Tomoko Miyashita, Shihoko Nakajima, Kaori Uomori, Shinji Morimoto, Kenji Takamori, Hideoki Ogawa, Yoshinari Takasaki, Iwao Sekigawa
Objective The objective of this study was to confirm the efficacy of low-dose mizoribine (MZR), an inhibitor of inosine monophosphate dehydrogenase, as part of synchronized methotrexate (MTX) therapy for rheumatoid arthritis (RA) patients with an inadequate response to various combination therapies of MTX, other synthetic disease-modifying anti-rheumatic drugs (DMARDs) and biological DMARDs. Methods Low-dose MZR was administered to 56 uncontrolled RA patients being treated with MTX and various biological DMARDs...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28498447/dec2-expression-antagonizes-cisplatin%C3%A2-induced-apoptosis-in-human-esophageal-squamous-cell-carcinoma
#10
Hidenobu Sato, Yunyan Wu, Yukio Kato, Qiang Liu, Hideaki Hirai, Tadashi Yoshizawa, Satoko Morohashi, Jun Watanabe, Hiroshi Kijima
Differentiated embryonic chondrocyte expressed gene 1 (DEC1) and differentiated embryonic chondrocyte expressed gene 2 (DEC2) belong to the Hairy/Enhancer of Split subfamily of basic helix‑loop‑helix factors. Previous studies have demonstrated that DEC proteins are involved in the regulation of circadian rhythms, response to hypoxia, and tumorigenesis. However, the roles of DEC1 and DEC2 in apoptosis of esophageal carcinoma remain unclear. In the present study, alterations in expression of apoptosis‑related markers in human esophageal squamous cell carcinoma TE‑11 cells treated with cisplatin were examined by western blot, while overall cell viability and apoptosis were analyzed by MTS assay and hematoxylin and eosin staining, respectively...
May 11, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28494764/possible-benefits-of-tomato-juice-consumption-a-pilot-study-on-irradiated-human-lymphocytes-from-healthy-donors
#11
Ayumi Nakamura, Chieko Itaki, Ayako Saito, Toko Yonezawa, Koichi Aizawa, Ayumi Hirai, Hiroyuki Suganuma, Tomisato Miura, Yasushi Mariya, Siamak Haghdoost
BACKGROUND: Reactive oxygen species (ROS) mediate much of the DNA damage caused by ionizing radiation. Among carotenoids, lycopene and β-carotene, present in tomato juice, are known to be strong radical scavengers. The aim of the study was to investigate the effect of tomato juice intake on the levels of DNA damage and oxidative stress in human whole blood induced by in vitro exposure to X-rays. METHODS: Ten healthy adults were asked to drink 190 g of tomato juice, containing 17 mg lycopene and 0...
May 12, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28490713/phospholipase-d-is-dispensable-for-epidermal-growth-factor-induced-chemotaxis
#12
Chihoko Hirai, Shaymaa Mohamed Mohamed Badawy, Lifang Zhang, Taro Okada, Taketoshi Kajimoto, Shunichi Nakamura
α-Synuclein (α-Syn) is implicated in several neurodegenerative disorders, including Parkinson's disease, known collectively as the synucleinopathies. α-Syn is known to be secreted from the cells and may contribute to the progression of the disease. Although extracellular α-Syn is shown to impair platelet-derived growth factor-induced chemotaxis, molecular mechanism of α-Syn-induced motility failure remains elusive. Here we have aimed at phospholipase D (PLD) as a potential target for α-Syn and examined the involvement of this enzyme in α-Syn action...
May 9, 2017: Kobe Journal of Medical Sciences
https://www.readbyqxmd.com/read/28490712/application-of-physiologically-based-pharmacokinetic-modeling-for-the-prediction-of-tofacitinib-exposure-in-japanese
#13
Misaki Suzuki, Susanna Tse, Midori Hirai, Yoichi Kurebayashi
Tofacitinib (3-[(3R,4R)-4-methyl-3-[methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino]piperidin-1-yl]-3 -oxopropanenitrile) is an oral Janus kinase inhibitor that is approved in countries including Japan and the United States for the treatment of rheumatoid arthritis, and is being developed across the globe for the treatment of inflammatory diseases. In the present study, a physiologically-based pharmacokinetic model was applied to compare the pharmacokinetics of tofacitinib in Japanese and Caucasians to assess the potential impact of ethnicity on the dosing regimen in the two populations...
May 9, 2017: Kobe Journal of Medical Sciences
https://www.readbyqxmd.com/read/28490208/plasma-kisspeptin-levels-in-lactational-amenorrhea
#14
Masato Kotani, Fumihiko Katagiri, Tsuyoshi Hirai, Jiro Kagawa, Issei Tanaka
The kisspeptin is a neuropeptide to play physiological roles in regulating gonadotropin-releasing hormone secretion in the hypothalamus. In human plasma, the kisspeptin concentration is measured, but gonadotropin-releasing hormone is not. This study aims to understand the physiological roles of the circulating kisspeptin in lactational amenorrhea in humans because prolactin reduces the kisspeptin expression and luteinizing hormone secretion resulting in anovulations in rodent brains. Plasma kisspeptin levels were measured in 11 subjects in lactational amenorrhea and in four cases with pathological amenorrhea by different etiologies for comparison using the enzyme immunoassay specific for human kisspeptin...
May 11, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28487999/chemotherapy-induced-neutropenia-as-a-prognostic-factor-in-patients-with-metastatic-pancreatic-cancer-treated-with-gemcitabine
#15
Aki Otake, Daiki Tsuji, Keisei Taku, Yohei Kawasaki, Mari Yokoi, Harumi Nakamori, Marika Osada, Megumi Matsumoto, Kazuyuki Inoue, Keita Hirai, Kunihiko Itoh
PURPOSE: Chemotherapy-induced neutropenia (CIN) is a common side effect of chemotherapy and an important dose-limiting factor. However, an association between CIN development and longer survival was recently reported in several solid cancers. In the present study, we aimed to assess whether CIN could be a prognostic factor and clarify other prognostic factors for patients with metastatic pancreatic cancer. METHODS: We retrospectively analyzed the medical records of 84 patients who received gemcitabine monotherapy as first-line chemotherapy for metastatic pancreatic cancer to assess whether CIN could be a prognostic factor...
May 9, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28485210/cytotoxic-compounds-against-cancer-cells-from-bombyx-mori-inoculated-with-cordyceps-militaris
#16
Weitao Qiu, Jing Wu, Jae-Hoon Choi, Hirofumi Hirai, Hiroshi Nishida, Hirokazu Kawagishi
Two compounds, 3'-deoxyinosine and cordycepin, were isolated from Bombyx mori inoculated with Cordyceps militaris. In the bioassay examining cytotoxicity against cancer cells, both compounds showed toxicity against A549, PANC-1, and MCF-7 cancer cells.
June 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28483570/contribution-of-maternal-age-and-pregnancy-checkbox-on-maternal-mortality-ratios-in-the-united-states-1978-2012
#17
Nicole L Davis, Donna L Hoyert, David A Goodman, Ashley H Hirai, William M Callaghan
BACKGROUND: Maternal mortality ratios (MMR) appear to have increased in the United States over the last decade. Three potential contributing factors are: 1) a shifting maternal age distribution, 2) changes in age-specific MMR, and 3) the addition of a checkbox indicating recent pregnancy on the death certificate. OBJECTIVE: Determine the contribution of rising maternal age on changes in MMR from 1978-2012, and estimate the contribution of the pregnancy checkbox on increases in MMR over the last decade...
May 5, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28483472/neck-failure-after-elective-neck-dissection-in-patients-with-oral-squamous-cell-carcinoma
#18
Hiroaki Shimamoto, Yu Oikawa, Toshimitsu Osako, Hideaki Hirai, Yumi Mochizuki, Kae Tanaka, Hirofumi Tomioka, Hiroyuki Harada
OBJECTIVE: Analysis of the incidence and clinical relevance of neck failure after elective neck dissection (END) in patients with oral squamous cell carcinoma (OSCC). STUDY DESIGN: A retrospective study of 188 patients with OSCC without cervical lymph node metastases was conducted; these patients had undergone END from 2005 to 2015. The most common primary tumor location was lower gingiva, followed by tongue. RESULTS: Supraomohyoid neck dissection (SOHND) was the most common procedure...
March 10, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28476582/enhanced-karyopherin-%C3%AE-2-expression-is-associated-with-carcinogenesis-in-patients-with-intraductal-papillary-mucinous-neoplasms
#19
Norio Kubo, Kenichiro Araki, Bolag Altan, Kouki Hoshino, Norihiro Ishii, Mariko Tsukagoshi, Takamichi Igarashi, Akira Watanabe, Toshihide Kato, Keitaro Hirai, Takehiko Yokobori, Fumiyoshi Saito, Hideki Suzuki, Hiroyuki Kuwano, Ken Shirabe
BACKGROUND/OBJECTIVES: Intraductal papillary mucinous neoplasms (IPMN) can become malignant. Karyopherin-α2 (KPNA2) plays a central role in nucleocytoplasmic transport and is associated with various types of cancer. The current study examined pancreatic KPNA2 expression in cancer patients and evaluated its association with clinicopathological factors, cancer cell proliferation. METHODS: KPNA2 expression was investigated by immunohistochemistry in 40 surgically resected IPMN samples and its association with clinicopathological factors and Ki-67 expression were examined...
April 23, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28475594/development-of-heterotopic-transplantation-of-the-testis-with-the-epididymis-to-evaluate-an-aspect-of-testicular-immunology-in-rats
#20
Kai Yi, Naoyuki Hatayama, Shuichi Hirai, Ning Qu, Shogo Hayashi, Shinichi Kawata, Kenta Nagahori, Munekazu Naito, Masahiro Itoh
Transplantation of testicular cells and tissues has been studied for the investigation of immunology of the testis, which is an immunologically privileged organ. However, reports of transplant of the testis at organ level have been extremely limited because of technical difficulties of the orthotopic testis transplantation (OTT) in experimental animals. In the present study, we developed a new and simple model of the heterotopic testis transplantation (HTT), which is donor testis transplantation into the cervical region of recipients, in a syngeneic model in rats [donor Lewis (LEW) graft to LEW recipient]...
2017: PloS One
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