1.Purification and Antihypertensive Activity of a Novel Angiotensin-I Converting Enzyme Inhibitory Peptide from Fish Sauce, Ishiru
Tetsuya SASAKI ; Mari KOUDOU ; Toshihide MICHIHATA ; Shizuo NAKAMURA ; Miyuki ABURATANI ; Kouji TOKUDA ; Takashi KOYANAGI ; Toshiki ENOMOTO
Japanese Journal of Complementary and Alternative Medicine 2013;10(1):45-49
We purified a novel angiotensin-I converting enzyme (ACE) inhibitor from fish sauce Ishiru prepared from squid, and identified it as the tripeptide Leu-Ala-Arg (LAR). IC50 of this ACE inhibitor was 2.5 μM, demonstrating high potency among peptides previously purified from fish sauces. Moreover, LAR acted as an antihypertensive peptide, reducing systolic blood pressure in spontaneously hypertensive rats.
2.The Role of Myocardial Gap Junction in Ischemia-Reperfusion Injury in Senescent Rabbit Myocardium.
Yasunari Nakai ; Hitoshi Horimoto ; Hiroaki Shimomura ; Tetsuya Hayashi ; Yasushi Kitaura ; Keiichiro Kondo ; Kunio Asada ; Shinjiro Sasaki
Japanese Journal of Cardiovascular Surgery 2001;30(4):165-170
Objective. We investigated whether the aging-related decrease in gap junction expression affects myocardial response against ischemia-reperfusion injury of the rabbit myocardium. Methods. Isolated aged (≥135 weeks) or mature (15-20 weeks) rabbit hearts were perfused with Krebs-Henseleit solution via a Langendorff apparatus, and were divided into five groups as follows: 7 mature hearts served as mature controls (Group A), 7 mature hearts underwent ischemic preconditioning (IPC) consisting of two cycles of global ischemia for 5min followed by reperfusion for 5min (Group B), 7 aged hearts served as aged control (Group C), 7 aged hearts underwent IPC (Group D) and 7 mature hearts received 1mM of gap junction uncoupler heptanol for 5min (Group E). Then, all hearts were subjected to 1h of left anterior descending coronary artery occlusion followed by 1h of reperfusion. Left ventricular pressure, ischemic zone monophasic action potential and coronary flow were measured throughout the experiment and the infarct size (IS) was determined at the end of the experiment. Gap junction expression was investigated by the electron microscopy. Results. The IS of Group A was 39.1±3.8 (%) and that of Group B was 26.9±3.8 (%)* (*p<0.05 vs. Group A). The IS of Group C was 19.3± 1.6(%)*. That of Group D was 43.6±5.8 (%)# (#p<0.05 vs. Group C). IS of Group E was 24.3±1.6 (%)*. Electron microscopic findings demonstrated that gap junction expression in aged hearts was less prominent than in mature ones. Conclusion. These data suggested that aged myocardium might be more tolerant of ischemic insult than that of mature heart, and that the mechanism might be related to the aging-related change of gap junction expression.
4.Effect of Fermented Okara Feeding on Cecum Microflora in Rat
Masato NISHI ; Yasunori KURITA ; Hiroshi MATSUI ; Hidehiko KUMAGAI ; Harumi TAKE ; Toshihide MICHIHATA ; Tetsuya SASAKI ; Masao KAWASHIMA ; Eiji FUJIHARA ; Takashi KUDA ; Takashi KOYANAGI ; Toshiki ENOMOTO
Japanese Journal of Complementary and Alternative Medicine 2014;11(2):89-94
Objective: The purpose of this study was to confirm the effect of feeding Okara fermented by Bacillus coagulans on cecum microflora in rat. Method: Three groups of SD rat of 8 weeks old were used in the experiment. The experimental animals were fed control diet, 2% okara diet, 2% fermented okara diet in each group for two weeks. The experimental diet and water were provided ad libitum. Food intake was measured every day. After 24 hours fast, we performed drawing blood with heparin after the experimental period. After drawing blood, several organs were removed for measuring their weight. In addition, we removed cecum after drawing blood about each three groups and studied their microflora. We also measured about plasma albumin, ALT, AST, ALP, LDH, total cholesterol, triacylglycerol, glucose, and cytokine level. Result: Bifidobacteria of cecum and blood IFN-g levels significantly increased in the fermented okara group. The total cholesterol level in blood significantly decreased. Conclusion: Okara fermented by Bacillus coagulans had an influence on not only intestinal microflora but also the immune system in rat, suggesting that the fermented okara can expect development as functional materials.
5.A pulmonary nodule in a patient with Crohn's disease
Akira HOKAMA ; Shusaku HARANAGA ; Takanobu SASAKI ; Hirofumi MATSUMOTO ; Tetsuya OHIRA ; Atsushi IRAHA ; Tetsu KINJO ; Saifun NAHAR ; Jiro FUJITA
Intestinal Research 2019;17(3):438-439
No abstract available.
Crohn Disease
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Humans
6.Development of a Training Program on the Proper Use of Over-the-Counter Drugs for Pharmacy Pharmacists
Chie HIRAOKA ; Keiko (Sasaki) AKAGAWA ; Yoshiaki FUJITA ; Yuki ODANAKA ; Atsuhiko SANO ; Mika NAGANUMA ; Tetsuya OGINO ; Hajime KATO ; Akihiro NAKAMURA
Japanese Journal of Social Pharmacy 2022;41(2):155-166
The importance of promoting self-medication is increasing, and the active participation of pharmacies is required to support this. We developed a training program based on the Attention, Relevance, Confidence, and Satisfaction (ARCS) model, which is a motivational design process to train pharmacists who support the proper use of OTC drugs, and for insurance pharmacists who usually perform dispensing work. In the six months of training, we conducted six sessions for insurance pharmacists on the subject of colds and constipation. In addition to conducting lectures and exercises on OTC drugs, we provided pharmacists with an opportunity to practice the training content during their daily work, and discuss solutions to the problems that they encountered. Of the eight participants who attended all workshops and were part of the final evaluation, seven provided OTC drugs after considering whether it was necessary to provide them. A total of six advised patients who came to the pharmacy to have their prescription medications dispensed that there were OTC medications that they should be careful about taking. These results suggest the usefulness of this training program based on the ARCS motivational design model.