1.Effects of Commercially Available Mineral Waters on Decoction of Kampo Medicines.
Koji SAKATA ; Sung-Joon KIM ; Haruki YAMADA
Kampo Medicine 2000;51(2):225-232
Kampo medicines containing Bupleuri Radix (Sho-saiko-to and Sho-saiko-to plus Fossilia ossis mastodi and Ostreae testa) were decocted with four kinds of mineral waters and tap water, and the extracts were analyzed for saikosaponin contents by HPLC. The results indicated that the yield of the extracted materials was the largest when Kampo medicines were decocted with the hard water compared with other mineral water extracts. However, the same extract contained the smallest amount of saikosaponin b2 of those tested. Extractions made with the mineral waters having a weakly acidic or weakly alkaline nature gave similar yields of the extracted materials and saikosaponin b2 contents.
Present results suggest a possibility that decoction using a hard water significantly affects extraction of certain ingredients in Kampo medicine.
2.The Analysis of New Patients in Oriental Medicine Research Center of the Kitasato Institute and its Application to Medical Care
Sung-Joon Kim ; Keiko NAKAMURA ; Chiaki OGATA ; Koji SAKATA ; Haruki YAMADA ; Toshihiko HANAWA
Kampo Medicine 2005;56(2):287-293
In general hospitals or clinics, medical treatment and instruction in medical therapies and nursing are carried out by the medical staff (doctors, pharmacists and nurses) on hand. It is necessary to understand overall trends in patient illness, in addition to personal information, in order to practice medical care comprehensively. For these reasons we analyzed popular medicines, patient make up, and major disease distributions at our own Kampo clinic institute, for patients admitted since 2001.
34% of our patients were male and 66% were female. The majority of these patients were between 20 to 30 years old or, 50 to 70 years old. There were few patients, either male or female, in their 40s. As for major disease distribution, atopic dermatitis was most common among both males and females. Next in line were cold sensations and endometriosis, for females, while respiratory organ diseases such as bronchial asthma or nasal inflammation, and Alzheimer's disease were most common, for males.
Among major disease types, atopic dermatitis was treated with Oren-gedoku-to (JTDN: Japanese Traditional Drug Name) and Ogi-kenchu-to (JTDN), while diabetes was treated with Hachi-mi-gan (JTDN) and Seishin-renshi-in (JTDN). Cold sensations were treated with Toki-shigyaku-ka-goshuyu-shokyo-to (JTDN) and Toki-shakuyaku-san (JTDN), while hypertension was treated with Cho-to-san and Saiko-ka-ryukotsu-borei-to (JTDN).
The present report contains information useful for diagnosis with Kampo medicines, as well as instruction in the nursing and use of these medications by doctors, pharmacists and nursing staff. This report may be utilized in order to administer appropriate medical care for patients.
3.Risks in Dispensing Kampo Medicines and Their Prevention
Sung-Joon KIM ; Chiaki OGATA ; Miyuki MIZUSAWA ; Koji SAKATA ; Haruki YAMADA ; Shogo ISHINO ; Toshihiko HANAWA
Kampo Medicine 2005;56(6):953-959
Recently, the number of physicians using Kampo (Japanese traditional herbal) medicines has been increasing in Japan, and it is becoming more common for pharmacists to dispense Kampo medicines. As Kampo medicines become more popular, in addition to extract formulae, the use of decocting formulae that are more suited to each patient's predisposition and symptoms has increased. Therefore, more pharmacists are dispensing such decocting formulae. However, dispensing decocting formulae can be a complicated task. The risk of dispensing errors is not small. In present paper, we examined preventive measures based on investigations of errors involving decocting formulae in our Kampo clinic. From 1990 to 1999, there were 54 cases in which errors were found after patients received their medicines, and 44 of these cases were dispensing errors. To prevent such errors, in addition to having the knowledge of Kampo medicine and medicinal herbs that is needed for dispensing decocting formulae, it is also necessary to understand the contents of the prescription. The most important preventive measures are to re-inspect the weight and contents of the prescription after preparing it, and to do a final inspection of the medicine contents with the patient. It is expected that this report will play a role in preventing dispensing errors of Kampo medicines by pharmacists.
4.Comparison between Constituents of the Extracts by Decoction of Adult and Child doses of Kampo Formulas
Hidefumi NISHIGORI ; Sung-Joon KIM ; Koji SAKATA ; Haruki YAMADA ; Shogo ISHINO ; Toshihiko HANAWA
Kampo Medicine 2006;57(1):37-44
For the dispensing of Kampo formulas, only an adult dose is described by conventional formulary. Therefore a child's dose is often prescribed by reducing instructions for the fraction-times of an adult dose. However, it is necessary to study whether the content of Kampo-extract pharmaceutical preparations at a child's dose, are similar to decoctions prepared by reducing the dose of crude drugs, and reducing the quantity of water by fraction-times. Therefore it was compared whether the constituents of a decoction liquid at an adult dose, were equal to those of a child's dose. In the decoction method of our clinic, adult doses are decocted with an initial 600mL quantity of water to half volume, as per the normal decoction method, whereas children's doses are reduced to 2/3 or 1/3 times that of adult dose, and decocted to half of the early-stage quantity of water that they are with adults. In the present study, three Kampo formulas which have been used frequently in our clinic and have different prescription weights i.e., Oren-gedoku-to (9g), Keishi-bukuryo-gan-ryo (20g), and Juzen-taiho-to (33g) were studied. When child and adult doses were compared, a difference was noted in pH, extraction rate and extracted constituents. Extraction rates for a child's dose of Oren-gedoku-to and Juzen-taiho-to were lower than that of an adult dose. Extraction rates of component gradients? ferulic acid in Oren-gedoku-to, pae-oniflorin in Keishi-bukuryo-gan-ryo, and paeoniflorin and liquiritin in Juzen-taiho-to? for a child's dose were lower than those of an adult dose. However, extraction rates of component gradients? albiflorin in Keishi-bukuryo-gan-ryo and albiflorin and trans-cinnamic acid in Juzen-taiho-to ? for a child's dose (quantity of 1/3 times) were higher than those of an adult dose. These results suggest that the content of a decoction, which was prepared by reducing an adult dose to the fraction-time of a child's dose, is not the same as reducing the amount of Kampo-extract pharmaceutical preparation to the fraction-time of a child's dose.
5.Incidence of Medical Errors by Interns in Japan
Koji WADA ; Yumi SAKATA ; Masashi TSUNODA ; Rie NARAI ; Katsutoshi TANAKA ; Yoshiharu AIZAWA
Medical Education 2007;38(4):239-244
Recently, patient safety has become a social concern in Japan. Even though cases of “incidents” and “accidents” by interns have been collected and analyzed in each hospital, few published reports have concerned teaching hospitals. The purpose of this study was to identify the incidence of “incidents” and “accidents” by first-year and second-year interns in Japan.
1) In August 2005, a questionnaire was mailed to 231 interns at 14 teaching hospitals. A total of 192 interns participated in this study, with a response rate of 83.1%.
2) The number of cases of “incidents” and “accidents” involving interns since the start of their training was collected.An “incident” was defined as an error that was prevented before occurrence, whereas an “accident” was defined as an unplanned, unexpected, and undesired event with adverse consequences.
3) Among first-year interns, “incidents” occurred at a rate of 0.79 per resident-month (95% confidence interval [CI]: 0.30-1.28), while “accidents” were observed at a rate of 0.13 per resident-month (95% CI: 0.06-0.20).
4) Among second-year interns, “incidents” occurred at a rate of 0.24 per resident-month (95% CI: 0.14-1.34), and “accidents” were observed at a rate of 0.06 per resident-month (95% CI: 0.01-0.11).
5) There was no significant difference in the number of cases of “incidents” and “accidents” in regards to sex, age, or the number of beds of teaching hospitals.
6.Upregulation of macrophage migration inhibitory factor and calgizzarin by androgen in TM4 mouse Sertoli cells.
Hiroyuki KASUMI ; Shinji KOMORI ; Kazuko SAKATA ; Naoko YAMAMOTO ; Tomohiko YAMASAKI ; Yonehiro KANEMURA ; Koji KOYAMA
Asian Journal of Andrology 2006;8(5):549-554
AIMTo identify proteins induced by androgen in Sertoli cells during spermatogenesis.
METHODSWe analyzed protein profiles in TM4 Sertoli cells treated with dihydrotestosterone (DHT) using surface enhanced laser desorption ionization time-of-flight mass spectrometry (SELDI-TOF-MS).
RESULTSWe found increases in the expression of a 5.0-kDa protein at 15 min, an 11.3-kDa protein at 24 h and 4.3 kDa, 5.7 kDa, 5.8 kDa, 9.95 kDa and 9.98 kDa proteins at 48 h after the treatment. In contrast, the expression of 6.3 kDa and 8.6 kDa proteins decreased at 30 min, and 4.9 kDa, 5.0 kDa, 12.4 kDa and 19.8 kDa proteins at 48 h after the treatment. The 11.3-kDa protein was identified as macrophage migration inhibitory factor (MIF) known to having various functions. The 9.98-kDa protein was identified as calgizzarin related to calcium channels. The timing of their expression suggests that MIF and calgizzarin are involved in late regulation of spermatogenesis in Sertoli cells by androgen.
CONCLUSIONMIF and calgizzarin are two important androgen-responsive proteins produced by Sertoli cells and they might play a role in regulating spermatogenesis.
Androgens ; pharmacology ; Animals ; Cell Line ; Dihydrotestosterone ; pharmacology ; Gene Expression Regulation ; drug effects ; Kinetics ; Macrophage Migration-Inhibitory Factors ; genetics ; Male ; Mice ; Protein Array Analysis ; S100 Proteins ; genetics ; Sertoli Cells ; drug effects ; physiology ; Spermatogenesis
7.Cerebrovascular reactivity to hypercapnia during sevoflurane or desflurane anesthesia in rats
Koji SAKATA ; Kazuhiro KITO ; Naokazu FUKUOKA ; Kiyoshi NAGASE ; Kumiko TANABE ; Hiroki IIDA
Korean Journal of Anesthesiology 2019;72(3):260-264
BACKGROUND: Hypercapnia causes dilation of cerebral vessels and increases cerebral blood flow, resulting in increased intracranial pressure. Sevoflurane is reported to preserve cerebrovascular carbon dioxide reactivity. However, the contribution of inhaled anesthetics to vasodilatory responses to hypercapnia has not been clarified. Moreover, the cerebrovascular response to desflurane under hypercapnia has not been reported. We examined the effects of sevoflurane and desflurane on vasodilatory responses to hypercapnia in rats. METHODS: A closed cranial window preparation was used to measure the changes in pial vessel diameters. To evaluate the cerebrovascular response to hypercapnia and/or inhaled anesthetics, the pial vessel diameters were measured in the following states: without inhaled anesthetics at normocapnia (control values) and hypercapnia, with inhaled end-tidal minimal alveolar concentration (MAC) of 0.5 or 1.0 of either sevoflurane or desflurane at normocapnia, and an MAC of 1.0 of sevoflurane or desflurane at hypercapnia. RESULTS: Under normocapnia, 1.0 MAC, but not 0.5 MAC, of sevoflurane or desflurane dilated the pial arterioles and venules. In addition, under both 1.0 MAC of sevoflurane and 1.0 MAC of desflurane, hypercapnia significantly dilated the pial arterioles and venules in comparison to their diameters without inhaled anesthetics. The degrees of vasodilation were similar for desflurane and sevoflurane under both normocapnia and hypercapnia. CONCLUSIONS: Desflurane induces cerebrovascular responses similar to those of sevoflurane. Desflurane can be used as safely as sevoflurane in neurosurgical anesthesia.
Anesthesia
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Anesthetics
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Animals
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Arterioles
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Carbon Dioxide
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Cerebrovascular Circulation
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Hypercapnia
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Intracranial Pressure
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Rats
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Vasodilation
;
Venules
8.Cerebrovascular reactivity to hypercapnia during sevoflurane or desflurane anesthesia in rats
Koji SAKATA ; Kazuhiro KITO ; Naokazu FUKUOKA ; Kiyoshi NAGASE ; Kumiko TANABE ; Hiroki IIDA
Korean Journal of Anesthesiology 2019;72(3):260-264
BACKGROUND:
Hypercapnia causes dilation of cerebral vessels and increases cerebral blood flow, resulting in increased intracranial pressure. Sevoflurane is reported to preserve cerebrovascular carbon dioxide reactivity. However, the contribution of inhaled anesthetics to vasodilatory responses to hypercapnia has not been clarified. Moreover, the cerebrovascular response to desflurane under hypercapnia has not been reported. We examined the effects of sevoflurane and desflurane on vasodilatory responses to hypercapnia in rats.
METHODS:
A closed cranial window preparation was used to measure the changes in pial vessel diameters. To evaluate the cerebrovascular response to hypercapnia and/or inhaled anesthetics, the pial vessel diameters were measured in the following states: without inhaled anesthetics at normocapnia (control values) and hypercapnia, with inhaled end-tidal minimal alveolar concentration (MAC) of 0.5 or 1.0 of either sevoflurane or desflurane at normocapnia, and an MAC of 1.0 of sevoflurane or desflurane at hypercapnia.
RESULTS:
Under normocapnia, 1.0 MAC, but not 0.5 MAC, of sevoflurane or desflurane dilated the pial arterioles and venules. In addition, under both 1.0 MAC of sevoflurane and 1.0 MAC of desflurane, hypercapnia significantly dilated the pial arterioles and venules in comparison to their diameters without inhaled anesthetics. The degrees of vasodilation were similar for desflurane and sevoflurane under both normocapnia and hypercapnia.
CONCLUSIONS
Desflurane induces cerebrovascular responses similar to those of sevoflurane. Desflurane can be used as safely as sevoflurane in neurosurgical anesthesia.
9.Upper Gastrointestinal Symptoms Are More Frequent in Female than Male Young Healthy Japanese Volunteers as Evaluated by Questionnaire.
Hiroharu KAWAKUBO ; Yuichiro TANAKA ; Nanae TSURUOKA ; Megumi HARA ; Koji YAMAMOTO ; Hidenori HIDAKA ; Yasuhisa SAKATA ; Ryo SHIMODA ; Ryuichi IWAKIRI ; Motoyasu KUSANO ; Kazuma FUJIMOTO
Journal of Neurogastroenterology and Motility 2016;22(2):248-253
BACKGROUND/AIMS: Upper gastrointestinal symptoms are more frequent and severe in female than in male outpatients in Japan. This study compared the upper gastrointestinal symptoms between healthy male and female young adult volunteers using a questionnaire. METHODS: In total, 581 third-grade medical students at Saga Medical School aged 22 to 30 years underwent upper gastrointestinal endoscopy and completed a questionnaire (frequency scale for symptoms of gastroesophageal reflux disease) from 2007 to 2013. Of these 581 students, 298 who were negative for Helicobacter pylori infection and had no particular lesions on endoscopic examination were enrolled in the present evaluation. A symptom was defined as positive when the subject evaluated the frequency of the symptom as sometimes, often, or always. RESULTS: The subjects comprised of 163 males (average age, 23.7 years) and 135 females (average age, 23.1 years). Upper gastrointestinal symptoms were more frequent in the females (75 of 135, 55.6%) than males (69 of 163, 42.3%; P < 0.05), with a high score for 4 symptoms (bloated stomach, heavy feeling in the stomach after meals, subconscious rubbing of the chest with the hand, and feeling of fullness while eating meals). Of the 144 subjects (69 males and 75 females) who complained of these symptoms, the females complained of dysmotility symptoms more often than did the males, but this was not true for reflux symptoms. CONCLUSIONS: This study suggests that females develop upper gastrointestinal symptoms more frequently than do males among the young healthy Japanese population.
Asian Continental Ancestry Group*
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Dyspepsia
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Eating
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Endoscopy
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Endoscopy, Gastrointestinal
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Esophagitis
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Female*
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Gastroesophageal Reflux
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Gastrointestinal Motility
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Hand
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Helicobacter pylori
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Humans
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Japan
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Male*
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Meals
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Outpatients
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Schools, Medical
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Stomach
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Students, Medical
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Thorax
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Unconscious (Psychology)
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Volunteers*
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Young Adult