1.Allergy and Flavonoid
Toshio TANAKA ; Toru HIRANO ; Shinji HIGA ; Junsuke ARIMITSU ; Mari KAWAI
Japanese Journal of Complementary and Alternative Medicine 2006;3(1):1-8
The prevalence of allergic diseases such as asthma, allergic rhinitis and atopic dermatitis has increased all over the world during the last two decades. Dietary change is supposed to be associated with this increase. If it is the case, an appropriate intake of foods or drinks with anti-allergic functions is expected to stop the increase. Flavonoids, ubiquitously present in vegetables, fruits or teas possess anti-allergic activities. Flavonoids inhibit histamine release, synthesis of IL-4 and IL-13 and CD40 ligand expression by basophils and mast cells. Analyses of structure-activity relationships of representative flavones showed that luteolin, apigenin and fisetin were the strongest inhibitors of IL-4 production with an IC50 value of 2–5 μM and determined a fundamental structure for the inhibitory activity. Quercetin and kaempferol showed a substantial activity with an IC50 value of 15–18 μM. The inhibitory activity of flavonoids on IL-4 and CD40 ligand expression were thought to be mediated through their inhibitory action on activation of nuclear factor of activated T cells and AP-1. Administration of flavonoids into atopic dermatitis-prone mice prevented the onset of dermatitis and serum IgE elevation and ameliorated the severity of dermatitis even after the onset. In addition a preliminary trial of flavonoids for adult patients with atopic dermatitis showed a significant effect. Recent epidemiological studies reported that a low incidence of asthma was significantly observed by population with a high intake of flavonoids. Thus, these evidences will be helpful for the development of low molecular compounds for allergic diseases and it is expected that an appropriate daily intake of flavonoids may be an effective complementary and alternative medicine and a preventative strategy for allergic diseases.
2.The current state of patient education for opioids by doctors, nurses and pharmacists, and evaluation of a pamphlet
Ikuto Kawamura ; Kousuke Kawai ; Yoshitsugu Sano ; Naomi Kubokawa ; Mari Teramachi ; Takashi Mizui ; Yukio Toyama ; Hiroko Saito ; Takaaki Hasegawa
Palliative Care Research 2009;4(1):214-227
The first step of cancer medical treatment is to eliminate anxiety about opioids. It is recommended to use printed matter in the "Guideline for Cancer Pain Management" edited by Japanese Society of Palliative Medicine,but few medical professionals actually use it. We developed the Opioids' pamphlet designed by Aichi Prefectural Society of Hospital Pharmacists; abbreviated OPA. This pamphlet is little burdened for readers; focusing on eliminating anxiety about opioids. Evaluation of the utility of the OPA and the actual conditions of patient education about the use of opioids by medical professionals were investigated, since there have been no reports on these issues. A questionnaire survey was conducted in hospitals with more than 150 beds in Aichi Prefecture. It targeted doctors, pharmacists and nurses who were practicing palliative care using opioids. There were many pharmacists and nurses who had been consulted about opioids, and most of the consultations were about addiction. 60% of pharmacists and 30% of nurses voluntarily performed patient education. Awareness of the guideline for of cancer pain management was low. OPA, which was reviewed based on the guideline, was applicable to 99% of the cases where the nurses were consulted. Its size and contents were highly acclaimed. Therefore, OPA is extremely valuable in clinical practice. Palliat Care Res 2009; 4(1): 214-227
3.Comparison of the hemodynamic effects of propofol and ketamine as anesthetic induction agents during high-dose remifentanil administration: a single-center retrospective comparative study.
Takuro SANUKI ; Gaku MISHIMA ; Shinji KURATA ; Toshihiro WATANABE ; Kensuke KIRIISHI ; Mizuki TACHI ; Yu OZAKI ; Ichiro OKAYASU ; Mari KAWAI ; Yuki MATSUSHITA ; Keiichiro MIURA ; Takao AYUSE
Journal of Dental Anesthesia and Pain Medicine 2015;15(3):129-134
BACKGROUND: We hypothesized that ketamine, when administered as the anesthetic induction agent, may prevent cardiovascular depression during high-dose remifentanil administration, unlike propofol. To test our hypothesis, we retrospectively compared the hemodynamic effects of ketamine, during high-dose remifentanil administration, with those of propofol. METHODS: Thirty-eight patients who underwent oral surgery at the Nagasaki University Hospital between April 2014 and June 2015 were included in this study. Anesthesia was induced by the following procedure: First, high-dose remifentanil (0.3-0.5 µg/kg/min) was administered 2-3 min before anesthesia induction; next, the anesthetic induction agent, either propofol (Group P) or ketamine (Group K), was administered. Mean arterial pressure (MAP) and the heart rate were recorded by the automated anesthesia recording system at four time points: immediately before the administration of high-dose remifentanil (T1); immediately before the administration of propofol or ketamine (T2); 2.5 min (T3), and 5 min (T4) after the administration of the anesthetic induction agent. RESULTS: In Group P, the MAP at T3 (75.7 ± 15.5 mmHg, P = 0.0015) and T4 (68.3 ± 12.5 mmHg, P < 0.001) were significantly lower than those at T1 (94.0 ± 12.4 mmHg). However, the MAP values in the K group were very similar (P = 0.133) at all time points. The heart rates in both Groups P (P = 0.254) and K (P = 0.859) remained unchanged over time. CONCLUSIONS: We showed that ketamine, when administered as the anesthetic induction agent during high-dose remifentanil administration, prevents cardiovascular depression.
Anesthesia
;
Arterial Pressure
;
Depression
;
Heart Rate
;
Hemodynamics*
;
Humans
;
Ketamine*
;
Propofol*
;
Retrospective Studies*
;
Surgery, Oral
4.Comparison of the hemodynamic effects of propofol and ketamine as anesthetic induction agents during high-dose remifentanil administration: a single-center retrospective comparative study.
Takuro SANUKI ; Gaku MISHIMA ; Shinji KURATA ; Toshihiro WATANABE ; Kensuke KIRIISHI ; Mizuki TACHI ; Yu OZAKI ; Ichiro OKAYASU ; Mari KAWAI ; Yuki MATSUSHITA ; Keiichiro MIURA ; Takao AYUSE
Journal of Dental Anesthesia and Pain Medicine 2015;15(3):129-134
BACKGROUND: We hypothesized that ketamine, when administered as the anesthetic induction agent, may prevent cardiovascular depression during high-dose remifentanil administration, unlike propofol. To test our hypothesis, we retrospectively compared the hemodynamic effects of ketamine, during high-dose remifentanil administration, with those of propofol. METHODS: Thirty-eight patients who underwent oral surgery at the Nagasaki University Hospital between April 2014 and June 2015 were included in this study. Anesthesia was induced by the following procedure: First, high-dose remifentanil (0.3-0.5 µg/kg/min) was administered 2-3 min before anesthesia induction; next, the anesthetic induction agent, either propofol (Group P) or ketamine (Group K), was administered. Mean arterial pressure (MAP) and the heart rate were recorded by the automated anesthesia recording system at four time points: immediately before the administration of high-dose remifentanil (T1); immediately before the administration of propofol or ketamine (T2); 2.5 min (T3), and 5 min (T4) after the administration of the anesthetic induction agent. RESULTS: In Group P, the MAP at T3 (75.7 ± 15.5 mmHg, P = 0.0015) and T4 (68.3 ± 12.5 mmHg, P < 0.001) were significantly lower than those at T1 (94.0 ± 12.4 mmHg). However, the MAP values in the K group were very similar (P = 0.133) at all time points. The heart rates in both Groups P (P = 0.254) and K (P = 0.859) remained unchanged over time. CONCLUSIONS: We showed that ketamine, when administered as the anesthetic induction agent during high-dose remifentanil administration, prevents cardiovascular depression.
Anesthesia
;
Arterial Pressure
;
Depression
;
Heart Rate
;
Hemodynamics*
;
Humans
;
Ketamine*
;
Propofol*
;
Retrospective Studies*
;
Surgery, Oral