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Journal of Pharmaceutical Health Care and Sciences

Ayumi Tsukamoto, Shunji Ishiwata, Asami Kajimoto, Ryusuke Murata, Rika Kitano, Tomomi Inoue, Takeshi Kotake
BACKGROUND: Exposure to anticancer drugs is hazardous and may lead to chromosomal abnormalities and spontaneous abortion in healthcare workers. Guidelines recommend surface decontamination and cleaning in order to minimize the occupational exposure to anticancer drugs, although no single process has been found to deactivate all currently available hazardous drugs. Ozone gas is oxidative and a decontaminant for bacteria; its characteristic as a gas has advantages in that it does not need to be wiped off or neutralized after use...
2016: Journal of Pharmaceutical Health Care and Sciences
Hironari Tanaka, Takafumi Naito, Yasuaki Mino, Junichi Kawakami
BACKGROUND: This study aimed to develop a simultaneous determination method for tramadol and its desmethylates in human plasma using isocratic liquid chromatography coupled to tandem mass spectrometry and to validate it for pharmacokinetic evaluation in patients with cancer pain or non-cancer pain. METHODS: The pretreatments for human plasma involved protein precipitation using acetonitrile and methanol under basic conditions. Tramadol, O-desmethylate, N-desmethylate, and N,O-didesmethylate were separated on an octadecylsilyl column filled with 3-μm particles using isocratic mixture of methanol and 0...
2016: Journal of Pharmaceutical Health Care and Sciences
Hidenobu Takahata, Kouichi Tanabe, Akiyoshi Takaki, Tsuneaki Yamanouchi, Yasuhiko Mimura, Atsumi Nitta, Hatsuna Yasuda, Tatsuhiko Kashii, Isao Adachi
BACKGROUND: Taxanes are known to cause onychopathy. Previous studies have reported the relationship between onychopathy and paclitaxel dosing intervals and cumulative doses. However, there are no studies of the predictive factors for docetaxel-induced nail changes. The present study used the drug accumulation rate (mg/m(2)/day) as a novel indicator and evaluated its usefulness for the prediction of onychopathy. METHODS: From January 2008 to December 2009, we examined patients who received docetaxel at the Toyama University Hospital and Tonami General Hospital to determine the time to onset of onychopathy, the accumulation rate, and the cumulative dose...
2016: Journal of Pharmaceutical Health Care and Sciences
Toshiyasu Tsujii, Takafumi Ogaki, Kaori Nakae, Kiyotaka Imai, Daisuke Kise, Shoji Tada, Hiroki Ueda, Masahiro Moriyama
BACKGROUND: Hypomagnesemia is one of the characteristic side effects of the human anti-epidermal growth factor receptor (EGFR) monoclonal antibodies, cetuximab and panitumumab. The major mechanism of anti-EGFR antibody-related hypomagnesemia is suppression of EGFR-mediated urinary Mg(2+) reabsorption in both the renal tubule the intestinal tract. Since Mg(2+) is known to affect blood Ca(2+) levels through regulation of parathyroid hormone (PTH) secretion, we investigated the correlation between Ca(2+) and Mg(2+) concentration in blood...
2016: Journal of Pharmaceutical Health Care and Sciences
Yusuke Kunimoto, Hiroshi Ikeda, Satoshi Fujii, Manabu Kitagawa, Kieko Yamazaki, Hiromasa Nakata, Norimasa Noda, Tadao Ishida, Atsushi Miyamoto
BACKGROUND: Plasma tenofovir (TFV) trough concentrations may be relevant for tenofovir disoproxil fumarate (TDF)-induced renal dysfunction. The purpose of this study was to determine the association between plasma TFV trough concentrations and TDF-induced renal dysfunction in Japanese patients with human immunodeficiency virus (HIV) infection. METHODS: A 48-week, retrospective cohort study was performed with Japanese patients with HIV infection who started a TDF-containing combination antiretroviral therapy regimen...
2016: Journal of Pharmaceutical Health Care and Sciences
Kazuaki Matsumoto, Satoru Kimura, Kenichi Takahashi, Yuta Yokoyama, Masayuki Miyazawa, Satoko Kushibiki, Morio Katamachi, Junko Kizu
BACKGROUND: A new formulation of olanzapine available for terminally ill patients is needed. Rectal administration using suppositories is an alternative for patients for whom administration via the oral route is not feasible. In the present study, we prepared olanzapine suppositories, and confirmed using pharmaceutical tests. Furthermore, we demonstrated the efficacy and safety of olanzapine suppositories in terminally ill patients. METHODS: We prepared olanzapine suppositories using bases consisting of different compositions of Witepsol H-15, Witepsol S-55, and Witepsol E-75...
2016: Journal of Pharmaceutical Health Care and Sciences
Yoshito Zamami, Toru Imai, Masaki Imanishi, Kenshi Takechi, Naoko Shiraishi, Toshihiro Koyama, Hidenori Sagara, Yasukazu Shiino, Toshiaki Sendo, Keisuke Ishizawa
BACKGROUND: Many pharmacists are participating in team-based medical care in emergency hospitals. Therefore, there is a desperate need to improve the education system. In the present study, we provided a "pharmaceutical lifesaving skills training" to the students in their fifth and sixth year of the pharmaceutical school and evaluated the program's impact on the students' learning and confidence in their ability to perform pharmaceutical interventions for emergency patients. METHODS: We conducted a pharmaceutical lifesaving skills training program with 12 participants who were in their fifth and six year of pharmaceutical school...
2016: Journal of Pharmaceutical Health Care and Sciences
Takuma Ozawa, Kiyoshi Mihara, Nobuhiro Yasuno
BACKGROUND: Sivelestat, a neutrophil elastase inhibitor, was previously approved in Japan for the treatment of acute lung injury associated with systemic inflammatory response syndrome. However, sivelestat produced inconsistent therapeutic benefits. This study aimed to identify factors predicting the therapeutic effects of sivelestat. METHODS: We enrolled 53 mechanically ventilated patients who received sivelestat. The patients were classified as effective (n = 28) if they were weaned from the ventilator within 28 days, or as ineffective groups (n = 25)...
2016: Journal of Pharmaceutical Health Care and Sciences
Yuki Tazawa, Akio Shigematsu, Kumiko Kasashi, Junichi Sugita, Tomoyuki Endo, Takeshi Kondo, Takanori Teshima, Ken Iseki, Mitsuru Sugawara, Yoh Takekuma
BACKGROUND: We investigated the pharmacokinetics of etoposide (ETP) to reduce the inter-individual variations of ETP concentrations in patients with acute leukemia who underwent allogeneic hematopoietic stem cell transplantation. We also carried out an in vivo study using rats to verify the dose adjustment. METHODS: This study included 20 adult patients. ETP was administered intravenously at a dose of 15 mg/kg once daily for 2 days (total dose: 30 mg/kg) combined with standard conditioning of cyclophosphamide and total body irradiation...
2016: Journal of Pharmaceutical Health Care and Sciences
Zhi Zhou, Ikuko Yano, Sumiko Odaka, Yosuke Morita, Satoshi Shizuta, Mamoru Hayano, Takeshi Kimura, Akinori Akaike, Ken-Ichi Inui, Kazuo Matsubara
BACKGROUND: Catheter ablation is a non-medication therapy for atrial fibrillation, and during the procedure, warfarin is withdrawn in the preoperative period to prevent the risk of bleeding. In case of emergency, vitamin K2 can be intravenously administered to antagonize the anticoagulant activity of warfarin. The aims of this study were to conduct population pharmacokinetic/pharmacodynamic modeling for retrospective clinical data and to investigate the effect of vitamin K2 on the anticoagulant activity of warfarin in the perioperative period of catheter ablation...
2016: Journal of Pharmaceutical Health Care and Sciences
Aya Goto, Haruka Kotani, Masayuki Miyazaki, Kiyofumi Yamada, Kazuhiro Ishikawa, Yasuhiko Shimoyama, Toshimitsu Niwa, Yoshinori Hasegawa, Yukihiro Noda
BACKGROUND: Genotype frequencies for chemotherapy-induced nausea and vomiting (CINV)-related polymorphisms have not yet been reported for Japanese subjects. METHODS: We analyzed 10 genotype frequencies for following polymorphisms associated with the development of CINV: serotonin 5-HT3 receptors (HTR3); neurokinin-1 receptors (Tachykinin-1 receptors, TACR1); dopamine D2 receptors (DRD2); and catechol-O-methyltransferase (COMT). RESULTS: All polymorphisms were successfully genotyped in 200 Japanese subjects and were in Hardy-Weinberg equilibrium...
2016: Journal of Pharmaceutical Health Care and Sciences
Hironori Kitade, Azusa Hiromasa-Yamasaki, Kengo Hokkoku, Mitsue Mori, Michio Watanabe, Masuo Nakai, Seiji Yano
BACKGROUND: Regorafenib and its metabolites may inhibit the activities of several CYP or UDP-glucuronosyltransferase isoforms, including that of CYP2C9. Therefore, pharmacological agents that are CYP2C9 substrates may show elevated circulating levels and enhanced drug efficacy when concurrently used with regorafenib. Previous studies showed that the area under the plasma concentration-time curve of warfarin, which is the substrate for CYP2C9, increased upon co-administration of regorafenib...
2016: Journal of Pharmaceutical Health Care and Sciences
Junko Abe, Ryogo Umetsu, Kanako Mataki, Yamato Kato, Natsumi Ueda, Yoko Nakayama, Yuuki Hane, Toshinobu Matsui, Haruna Hatahira, Sayaka Sasaoka, Yumi Motooka, Hideaki Hara, Zenichiro Kato, Yasutomi Kinosada, Naoki Inagaki, Mitsuhiro Nakamura
BACKGROUND: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are severe cutaneous adverse reactions associated with fatal disorders. Although many causes of SJS/TEN have been proposed, the time-to-onset for SJS/TEN and the relationship between aging and SJS/TEN are still not clear. Therefore, the aim of this study was to determine the relationship between aging and SJS/TEN using the Japanese Adverse Drug Event Report (JADER) database and analyze the time-to-onset profile of SJS/TEN...
2016: Journal of Pharmaceutical Health Care and Sciences
Masayuki Hashiguchi, Tomomi Tsuru, Kumika Miyawaki, Midori Suzaki, Jun Hakamata, Mikiko Shimizu, Shin Irie, Mayumi Mochizuki
BACKGROUND: Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by systemic inflammatory status, joint destruction, disability, and pain. Methotrexate (MTX) has been confirmed to reduce disease activity and delay or stabilize the development of bone erosions. However, major drawbacks are that patients show great interindividual variability in response to MTX and the unpredictable occurrence of side effects. A strategy for personalized MTX treatment to predict its efficacy and toxicity has not yet been determined...
2016: Journal of Pharmaceutical Health Care and Sciences
Shuichi Nawata, Noriko Kohyama, Naoki Uchida, Satoshi Numazawa, Masayuki Ohbayashi, Yasuna Kobayashi, Masanori Iwata, Takanori Nakajima, Hiroshi Saito, Akira Izuka, Toshinori Yamamoto
BACKGROUND: We formulated mianserin suppositories for the treatment of delirium and evaluated their pharmacokinetics by measuring plasma drug concentrations in dogs and healthy human volunteers. METHODS: Mianserin suppositories were prepared by a melting technique using Tetramide® tablets and Witepsol H-15 as the suppository base. Pharmacokinetics of this 30-mg mianserin preparation were evaluated in three beagle dogs and three healthy adult males, in line with ethics committee approval...
2016: Journal of Pharmaceutical Health Care and Sciences
Erisa Tomishige-Mukai, Akio Kawachi, Erika Kiyohara, Fuminori Esaki, Junichiro Sonoda, Tomohiro Shinya, Keiko Narumi, Keizo Sato, Toshiro Motoya
BACKGROUND: Osteoporosis is estimated to afflict over 200 million people worldwide and healthcare professionals are needed to successfully intervene. The aim of this study was to assess cognitive changes in students pertaining to the primary prevention of osteoporosis after measuring their bone density and having them participate in a simulated health class during pharmacy school. METHODS: Third year pharmacy students participated in the training program, which consisted of measuring their bone density using quantitative ultrasound and preparing educational materials and conducting a simulated health class...
2016: Journal of Pharmaceutical Health Care and Sciences
Satoshi Dote, Maki Sawai, Ayumu Nozaki, Kazumasa Naruhashi, Yuka Kobayashi, Hirokazu Nakanishi
BACKGROUND: Voriconazole concentrations display a large variability, which cannot completely be explained by known factors. We investigated the relationships of voriconazole concentration with patient-specific variables and concomitant medication to identify clinical factors affecting voriconazole clearance. METHODS: A retrospective chart review of voriconazole trough concentration, laboratory data, and concomitant medication in patients was performed. The concentration/dose ratio (C/D-ratio) was assessed as a surrogate marker of total clearance by dividing voriconazole concentration by daily dose per kg of body weight...
2016: Journal of Pharmaceutical Health Care and Sciences
Toshiaki Komatsu, Takayuki Inomata, Ichiro Watanabe, Masahiro Kobayashi, Hideya Kokubun, Junya Ako, Koichiro Atsuda
BACKGROUND: This study was designed to evaluate the population pharmacokinetics (popPK) of penicillin G in patients with infective endocarditis and establish a dosage regimen based on pharmacokinetic data and clinical outcome. METHOD: Forty-six serum penicillin G samples from 25 individuals were analyzed using a nonlinear mixed-effects model. popPK were estimated using a one-compartment model. We created a receiver operating characteristic (ROC) curve for penicillin G efficacy and the ratio of its minimum concentration (Cmin)/minimum inhibitory concentration (MIC)...
2016: Journal of Pharmaceutical Health Care and Sciences
Nobuhiro Ooba, Shoutarou Tanaka, Yu Yasukawa, Nariyasu Yoshino, Hiroyuki Hayashi, Shinji Hidaka, Toshiichi Seki, Noriyasu Fukuoka
BACKGROUND: The increased risk of new-onset diabetes with statin use, including high-potency statins, is well known. However, the effects of high-potency statins on HbA1c are unclear. A retrospective cohort study was conducted to examine the effect of high-potency statins on HbA1c in patients with or without diabetes. The study enrolled new statin users identified via the electronic healthcare database of the general hospital in Japan. METHODS: Following identification of all individuals (n = 4,672) who had been prescribed a lipid lowering drug at least once between January 1, 2010 and July 31, 2014, new statin users were selected (n = 1,136)...
2016: Journal of Pharmaceutical Health Care and Sciences
Tetsuya Kaneko, Takashi Fujioka, Yosuke Suzuki, Yuhki Sato, Hiroki Itoh
BACKGROUND: High-dose methotrexate (HDMTX) is used in the treatment of certain malignancies, including leptomeningeal metastases, systemic non-Hodgkin lymphoma, acute lymphoblastic leukemia, and osteosarcoma. High circulating levels of methotrexate can cause severe myelosuppression. The present study aimed to examine the differences in plasma MTX concentrations measured by two immunoassay systems currently available in the Japanese market, a TDX/FLX analyzer and a TBA-25FR analyzer. METHODS: A total of 69 plasma samples from 16 patients were assayed by a fluorescence polarization immunoassay technique using a TDx/FLx analyzer (Abbott Diagnostics, Chicago, Illinois, U...
2016: Journal of Pharmaceutical Health Care and Sciences
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