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Masaki Hashimoto, Shigeki Shimizu, Teruhisa Takuwa, Yoshitane Tsukamoto, Tohru Tsujimura, Seiki Hasegawa
BACKGROUND: An atypical type A thymoma variant was newly added to the WHO classification of type A thymoma family in 2015. CASE PRESENTATION: A 72-year-old female was present a large round mass in the anterior mediastinum. The radiological examination led to a preoperative diagnosis of non-invasive thymoma. Tumor resection was undertaken via median sternotomy. Complete removal of the mediastinal tumor was achieved. Pathological examination revealed that the tumor cells were spindle- and oval-shaped with atypia...
December 2016: Surgical Case Reports
Akihiro Tsuchimoto, Toshiaki Nakano, Shoko Hasegawa, Kosuke Masutani, Yuta Matsukuma, Masahiro Eriguchi, Masaharu Nagata, Takehiro Nishiki, Hidehisa Kitada, Masao Tanaka, Takanari Kitazono, Kazuhiko Tsuruya
BACKGROUND: Lymphangiogenesis occurs in diseased native kidneys and kidney allografts, and correlates with histological injury; however, the clinical significance of lymphatic vessels in kidney allografts is unclear. METHODS: This study retrospectively reviewed 63 kidney transplant patients who underwent protocol biopsies. Lymphatic vessels were identified by immunohistochemical staining for podoplanin, and were classified according to their location as perivascular or interstitial lymphatic vessels...
October 21, 2016: Clinical and Experimental Nephrology
Eri Maeda, Takahiro Higashi, Tomonobu Hasegawa, Susumu Yokoya, Takahiro Mochizuki, Tomohiro Ishii, Junko Ito, Susumu Kanzaki, Akira Shimatsu, Koji Takano, Toshihiro Tajima, Hiroyuki Tanaka, Yusuke Tanahashi, Akira Teramoto, Toshiro Nagai, Kunihiko Hanew, Reiko Horikawa, Toru Yorifuji, Naohiro Wada, Toshiaki Tanaka
BACKGROUND: Treatment costs for children with growth hormone (GH) deficiency are subsidized by the government in Japan if the children meet clinical criteria, including height limits (boys: 156.4 cm; girls: 145.4 cm). However, several funding programs, such as a subsidy provided by local governments, can be used by those who exceed the height limits. In this study, we explored the impacts of financial support on GH treatment using this natural allocation. METHODS: A retrospective analysis of 696 adolescent patients (451 boys and 245 girls) who reached the height limits was conducted...
October 21, 2016: BMC Health Services Research
David J Pulford, Philipp Harter, Anne Floquet, Catherine Barrett, Dong Hoon Suh, Michael Friedlander, José Angel Arranz, Kosei Hasegawa, Hiroomi Tada, Peter Vuylsteke, Mansoor R Mirza, Nicoletta Donadello, Giovanni Scambia, Toby Johnson, Charles Cox, John K Chan, Martin Imhof, Thomas J Herzog, Paula Calvert, Pauline Wimberger, Dominique Berton-Rigaud, Myong Cheol Lim, Gabriele Elser, Chun-Fang Xu, Andreas du Bois
BACKGROUND: The focus on translational research in clinical trials has the potential to generate clinically relevant genetic data that could have importance to patients. This raises challenging questions about communicating relevant genetic research results to individual patients. METHODS: An exploratory pharmacogenetic analysis was conducted in the international ovarian cancer phase III trial, AGO-OVAR 16, which found that patients with clinically important germ-line BRCA1/2 mutations had improved progression-free survival prognosis...
October 21, 2016: BMC Medical Ethics
Mikio Fukuhara, Tomoyuki Kuroda, Fumihiko Hasegawa
The electric capacitance of an amorphous TiO2-x surface increases proportionally to the negative sixth power of the convex diameter d. This occurs because of the van der Waals attraction on the amorphous surface of up to 7 mF/cm(2), accompanied by extreme enhanced electron trapping resulting from both the quantum-size effect and an offset effect from positive charges at oxygen-vacancy sites. Here we show that a supercapacitor, constructed with a distributed constant-equipment circuit of large resistance and small capacitance on the amorphous TiO2-x surface, illuminated a red LED for 37 ms after it was charged with 1 mA at 10 V...
October 21, 2016: Scientific Reports
Yaeko Fukushima, Satoshi Kurose, Hiromi Shinno, Ha Cao Thi Thu, Nana Takao, Hiromi Tsutsumi, Takaaki Hasegawa, Toshiaki Nakajima, Yutaka Kimura
BACKGROUND: Irisin is a myokine implicated in lipid and glucose metabolism. The objective of this study is to examine the effect of a body weight reduction on the serum irisin level and physical indicators in obese Japanese patients without diabetes. METHODS: The subjects were 22 patients (male/female, 5/17; age, 46.1±16.0 years; body mass index [BMI], 36.9±5.0 kg/m(2)) who completed a 6-month body weight reduction program at our clinic. The program included diet, exercise therapy and cognitive behavioral therapy...
October 2016: Diabetes & Metabolism Journal
Kotaro Horiguchi, Takashi Nakakura, Saishu Yoshida, Takehiro Tsukada, Naoko Kanno, Rumi Hasegawa, Shu Takigami, Shunji Ohsako, Takako Kato, Yukio Kato
Contact-dependent (juxtacrine) signaling is important for local cell-to-cell interaction and has received attention in recent years regarding its role in pituitary function, differentiation, and development. This study investigated one of the juxtacrine-related molecules, thymocyte differentiation antigen 1 (THY1), in the anterior lobe of the rat pituitary gland. Western blot analysis revealed expression of the THY1 protein in the adult rat anterior lobe. We also found that the THY1 ligand, integrin-β2 (ITGB2), is also expressed in the pituitary gland...
October 17, 2016: Biochemical and Biophysical Research Communications
Kosuke Toda, Kenji Kawada, Masayoshi Iwamoto, Susumu Inamoto, Takehiko Sasazuki, Senji Shirasawa, Suguru Hasegawa, Yoshiharu Sakai
A number of clinical trials have shown that KRAS mutations of colorectal cancer (CRC) can predict a lack of responses to anti-epidermal growth factor receptor-based therapy. Recently, there have been several studies to elucidate metabolism reprogramming in cancer. However, it remains to be investigated how mutated KRAS can coordinate the metabolic shift to sustain CRC tumor growth. In this study, we found that KRAS mutation in CRC caused alteration in amino acid metabolism. KRAS mutation causes a marked decrease in aspartate level and an increase in asparagine level in CRC...
October 17, 2016: Neoplasia: An International Journal for Oncology Research
Yuanrong Xin, Junji Sakamoto, André J van der Vlies, Urara Hasegawa, Hiroshi Uyama
This data article provides supplementary figures to the research article entitled, "Phase separation approach to a reactive polycarbonate monolith for "click" modifications" (Xin et al., Polymer, 2015, doi:10.1016/j.polymer.2015.04.008). Here, the nitrogen adsorption/desorption isotherms of the prepared porous polycarbonate monolith are shown to classify its inner structure and calculate the specific surface area. The monoliths were modified by using the thiol-ene click chemistry and the olefin metathesis, which was examined by contact angle measurements, FT-IR, solid state (13)C NMR spectroscopy as well as thermogravimetric analysis...
June 2016: Data in Brief
Katsuaki Hirano, Masahiro Kurosaki, Satoshi Nihei, Hiroki Hasegawa, Suguru Shinoda, Mitsuru Haruki, Nobutaka Hirano
The cellulosome is a supramolecular multienzyme complex comprised of a wide variety of polysaccharide-degrading enzymes and scaffold proteins. The cellulosomal enzymes that bind to the scaffold proteins synergistically degrade crystalline cellulose. Here, we report in vitro reconstitution of the Clostridium thermocellum cellulosome from 40 cellulosomal components and the full-length scaffoldin protein that binds to nine enzyme molecules. These components were each synthesized using a wheat germ cell-free protein synthesis system and purified...
October 19, 2016: Scientific Reports
Masaya Okura, Souichi Yanamoto, Masahiro Umeda, Mitsunobu Otsuru, Yoshihide Ota, Hiroshi Kurita, Takahiro Kamata, Tadaaki Kirita, Nobuhiro Yamakawa, Tetsuro Yamashita, Michihiro Ueda, Takahide Komori, Takumi Hasegawa, Tomonao Aikawa
A multi-institutional study was undertaken to determine whether mandibular canal (MC) invasion and mandibular medullary bone invasion are independent factors in lower gingival squamous cell carcinoma (SCC). A total of 345 patients with lower gingival SCC were retrospectively reviewed. Mandibular bone invasion was categorized into three types; no bone invasion; invasion through cortical bone (medullary); and MC invasion. The overall survival rate and factors affecting local, regional, and distant failures were assessed by Cox proportional hazards regression analysis and Kaplan-Meier estimates...
October 19, 2016: Cancer Medicine
Hisako Hara, Makoto Mihara, Kyoko Hasegawa, Kazuko Yamanaka
OBJECTIVE: Although the lymphatic complications such as lymphocele sometimes occur after surgery for varicose veins, the lymphatic function of such patients has not been evaluated. In this case report, we present a case of lymphocele after ligation surgery for varicose vein. We also detected subclinical dysfunction in lower limb using indocyanine green (ICG) lymphography. CASE REPORT: A 76 year- old female underwent ligation surgery for right lower leg varicose vein, and she noticed the squashy lesion in the medial side of the right knee...
2016: SAGE Open Med Case Rep
Yusuke Miyazaki, Yasufumi Katanasaka, Yoichi Sunagawa, Sae Hirano-Sunagawa, Masafumi Funamoto, Eriko Morimoto, Maki Komiyama, Akira Shimatsu, Noriko Satoh-Asahara, Hajime Yamakage, Hiromichi Wada, Koji Hasegawa, Tatsuya Morimoto
PURPOSE: HMG-CoA reductase inhibitors, also termed statins, are used to reduce the risk of coronary artery disease. Two oxidatively modified low-density lipoprotein (LDL) complexes, serum amyloid A-LDL (SAA-LDL) and α1-antitrypsin-LDL (AT-LDL), serve as atherosclerotic, inflammatory, and cardiovascular risk markers. In this study, we examined the effects of hydrophilic rosuvastatin (RSV) and lipophilic pitavastatin (PTV) on these markers in patients with hypercholesterolemia. METHODS: The present study was a sub-analysis of our previous STAT-LVDF study...
October 3, 2016: International Journal of Cardiology
Hirokazu Muraoka, Kazuhiro Hasegawa, Shu Wakino
OBJECTIVE: Nicotinamide phosphoribosyltransferase (Nampt) cooperates with a longevity gene, Sirt1, to exert the potentiation of stress resistance. We have reported that the high expression level of Nampt in PTs contributes to the sufficient supply of NMN to glomeruli. We also showed that downregulation of Nampt and NMN in PT in DN leads to glomerular damages (Nature Medicine 2013). However, the regulation mechanisms of Nampt expression remain unknown. DESIGN AND METHOD: We investigated how Nampt expression is consistently retained at high levels in PTs under normal conditions and how Nampt levels are decreased in DN...
September 2016: Journal of Hypertension
Yu Hasegawa, Shokei Kim-Mitsuyama
OBJECTIVE: Although hypertensive patients show significant elevation of blood pressure (BP) in acute phase after cerebral infarction, it is still unknown how it should be managed to carry the best prognosis. To address this issue, we investigated the effect of acute control of elevated BP by bilateral renal denervation (RD) against ischemic stroke in SHRSP rats with 90 minutes transient middle cerebral arterial occlusion (MCAO). DESIGN AND METHOD: Seventy-five male SHRSP rats of 15 weeks of age were assigned to sham-operated (control, n = 15) and MCAO + sham (sham, n = 30), and MCAO + RD (RD, n = 30)...
September 2016: Journal of Hypertension
Koki Takane, Yu Hasegawa, Lin Bowen, Takashi Yokoo, Shokei Kim-Mitsuyama
OBJECTIVE: Increasing evidences suggest that patients with Alzheimer's disease (AD) show not only cognitive impairment but also physical disorder including cardiac dysfunction and sarcopenia. In this study, we investigated whether central angiotensin II, inducer of oxidative stress, led to the organ dysfunction in a mouse model of AD. DESIGN AND METHOD: 5XFAD which is an animal model of AD and C57BL/6 (WT) were each assigned to 1) normal saline and 2) angiotensin II (20 mg/kg/h) groups...
September 2016: Journal of Hypertension
Satoshi Nagayama, Suguru Hasegawa, Koya Hida, Kenji Kawada, Etsuro Hatano, Kojiro Nakamura, Satoru Seo, Kojiro Taura, Kentaro Yasuchika, Takashi Matsuo, Masazumi Zaima, Akiyoshi Kanazawa, Hiroaki Terajima, Masaharu Tada, Yukihito Adachi, Ryuta Nishitai, Dai Manaka, Tsunehiro Yoshimura, Koji Doi, Takahiro Horimatsu, Akira Mitsuyoshi, Kenichi Yoshimura, Miyuki Niimi, Shigemi Matsumoto, Yoshiharu Sakai, Shinji Uemoto
BACKGROUND: Although liver resection combined with preoperative chemotherapy is expected to improve outcomes of patients with resectable colorectal liver metastasis (CRLM), there is as yet insufficient clinical evidence supporting the efficacy of preoperative systemic chemotherapy. The aim of this phase II study was to assess the feasibility and efficacy of preoperative FOLFOX systemic chemotherapy for patients with initially resectable CRLM. METHODS: A prospective multi-institutional phase II study was conducted to evaluate the feasibility and efficacy of preoperative chemotherapy for resectable CRLM (ClinicalTrials...
October 17, 2016: International Journal of Clinical Oncology
Masaaki Ikeda, Yoshitaka Yoshimura, Takashi Kikuiri, Mino Matsuno, Tomokazu Hasegawa, Kumu Fukushima, Takako Hayakawa, Hajime Minamikawa, Kuniaki Suzuki, Junichiro Iida
Bone remodeling is an important factor in orthodontic tooth movement. During orthodontic treatment, osteoclasts are subjected to various mechanical stimuli, and this promotes or inhibits osteoclast differentiation and fusion. It has been previously reported that the release from tensile force induces osteoclast differentiation. However, little is known about how release from compressive force affects osteoclasts. The present study investigated the effects of release from compressive force on osteoclasts. The number of tartrate‑resistant acid phosphatase (TRAP)‑positive multinucleated osteoclasts derived from RAW264...
October 5, 2016: Molecular Medicine Reports
Yuji Fujita, Sho Hasegawa, Yuri Kato, Ken Ishii, Akito Iwasaki, Takamitsu Sato, Yusuke Sekino, Kunihiro Hosono, Atsushi Nakajima, Kensuke Kubota
Background and study aims: Several meta-analyses and randomized control trials have demonstrated the efficacy of rectal nonsteroidal anti-inflammatory drugs for preventing post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP). Diclofenac or indomethacin was administered at a dose of 100 mg in those studies, which may be too high for Asian population. In addition, rectal administration can be considered complicated. Patients and methods: This study was a prospective, randomized, placebo-controlled trial...
October 2016: Endoscopy International Open
Rikako Hiramatsu, Yoshifumi Ubara, Naoki Sawa, Eiko Hasegawa, Masahiro Kawada, Aya Imafuku, Keiichi Sumida, Junichi Hoshino, Kenmei Takaichi
We performed a bone histomorphometric analysis in two patients demonstrating Fanconi syndrome with hypophosphatemia, adefovir-related bone disease and chronic hepatitis B infection. Both patients had osteomalacia, but showed two different histological patterns. The osteoid volume of the patient without risedronate increased with [(osteoid volume/ bone volume)×100=18.6%]. However, the osteoid volume of the patient receiving risedronate without vitamin D analogue showed a greater increase of 53.8%. In both patients bone pain and hypophosphatemia subsided soon after the discontinuation of adefovir and the administration of phosphate derivative...
2016: Internal Medicine
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