1.The Significances of Water Volume to Decoct Formulas Described in Classical Chinese Medicine
Tsukasa FUEKI ; Koichiro TANAKA ; Kazuhiko NARA ; Koki CHIBA ; Tadanori KATO ; Takamichi KAWAHARA ; Hiroko MOROHASHI ; Chikano SHIBAYAMA ; Takao NAMIKI ; Masashi BEPPU ; Toshiaki MAKINO
Kampo Medicine 2021;72(2):107-118
Although the descriptions of shigyakukachotanto in “Waitaimiyaofang” and tsumyakushigyakukachotanjuto in “Songban Shanghanlun” are quite similar to each other, the specifications of the dosages of crude drugs and the water volume in the books were considerably different. Focused on the specified water volume to decoct these formulas, each reasonable decocting period was estimated, then the decoctions were prepared using hard water that was common in mainland China. The dosages of aconite root were 2-fold different between these two formulas, but the contents of aconitine-type diester alkaloids (ADA) in both decoctions were found in the range of 1.2—1.4-fold. It was suggested that in order to control the efficacy and the safety of aconite, the decocting period was well regulated by the specification of water volume for decocting at this ancient era. Moreover, the dosages of aconite root and glycyrrhiza in bukuryoshigyakuto (BSGT) formula of “Songban Shanghanlun” are equal to those of shigyakuto (SGT) but the specified water volume to begin decocting is as about twice as that of SGT. When prepared using hard water, BSGT resulted to make the contents of ADA lower and those of non-ester alkaloids higher compared with those of SGT decoction. It was suggested the specific water volume for each formula prescribed in classical Chinese medicine had considerable significance to determine the dosages of chemical ingredients in the decoctions especially in the circumstances using hard water to prepare them.
2.Relationship Between Neurological Degenerative Disorders and a Blood Deficiency Using ki-ketsu-sui Score
Yoshikazu MIZOI ; Shinichiro UEDA ; Koichiro TANAKA ; Koki CHIBA ; Kazuhiko NARA ; Toshimasa YAMAMOTO
Kampo Medicine 2019;70(1):1-7
We evaluated body constituents patterns of 74 consecutive patients with neurological degenerative disorders. They comprise Parkinson's disease (n = 38), amyotrophic lateral sclerosis (n = 19), and multiple system atrophy (n = 17). We compared body constituents patterns between them and 149 consecutive patients with other neurological diseases of the same age. We used ki-ketsu-sui scores to evaluate body constituents patterns in all cases. Ki-ketsu-sui scores measure six factors : qi deficiency (kikyo), qi stagnation (kiutsu), qi counterflow (kigyaku), blood deficiency (kekkyo), blood stasis (oketsu), and fluid retention (suitai). As a result of multivariate analysis, neurological degenerative disorders had large weight of blood deficiency, fluid retention and qi stagnation. Their adjusted odds ratios (95% confidence interval) were 3.02 (1.43-6.48), 2.37 (1.13-5.11), 2.33 (1.01-5.44), respectively. Most relevant factor to neurological degenerative disorders was a blood deficiency. Taking into consideration a prescription of “shimotsuto rui” may contribute to alleviate patient's suffering. In addition to subjective symptoms, we need an oriental medicine scale such as pulse, tongue, and abdominal examinations to judge a therapeutic effect of Kampo medicine.
3.Efficacy and Safety of Goreisan for Chronic Heart Failure Patients with Chronic Kidney Disease
Ryudo KAWAHARA ; Koki CHIBA ; Hiroko TAKAHASHI ; Kazuhiko NARA ; Koichiro TANAKA ; Tomoyuki ATA ; Hiroshi HASHIDOMI ; Hiroshi DOUMAE
Kampo Medicine 2019;70(1):57-64
Although evidence of Western therapy for heart failure has been established, evidence of treatment for heart failure with chronic kidney disease (CKD) has still not been established. The efficacy of additional Oriental medicine to standard therapy for heart failure with CKD is unclear. To address this issue, we retrospectively evaluated 20 consecutive heart failure patients with CKD (≧stage 3) who were orally administered goreisan (7.5 g/day) due to insufficient efficacy of standard therapy in our hospital from November 2015 to December 2017. We assessed symptoms, chest X-ray, BNP concentration, serum electrolytes, eGRF, plasma osmolality, and side effects. Goreisan improved heart failure in 11 of 20 patients, did not significantly deteriorate renal function, plasma osmolality, and did not clinically affect electrolytes. In conclusion, the present study suggested that additional use of goreisan to Western standard therapy is safe and useful for heart failure with CKD.
4.Seven Infertility Cases Treated by Kampo Medicine for Stagnation of Liver qi
Tomoko ITOGA ; Koki CHIBA ; Hiroko TAKAHASHI ; Kazuhiko NARA ; Koichiro TANAKA
Kampo Medicine 2018;69(3):300-304
ART (Assisted Reproductive Technology) is making impressive advancements. However, not all patients will successfully conceive even with this technique. Patients undergoing infertility treatment are predominantly in a state of mental stress for being unable to conceive, and the importance of stress care in treating infertility has been reported. This time, to investigate the relationship between infertility, mental stress and Kampo treatment, we have conducted a retrospective study on 7 patients who achieved conception by a combination treatment of Kampo medicine and ovulation day prediction. Patients'occupation, menstruation history, pregnancy history, premenstrual symptoms, and oriental medical examination findings were extracted from their medical records. The clinical background were age (mean age: 36 [29-39]), time to pregnancy (mean: 6 months [2-9 months]), and outcome (normal vaginal delivery [3 cases], caesarean section [2 cases], abortion [1 case], transfer to other facility [1 case]). The oriental medical diagnosis in all cases found stagnation of liver qi. Two cases had only stagnation of liver qi. As comorbidities, kidney deficiency (3 cases), blood stasis syndrome (1 case), and blood stasis syndrome with syndrome of dual deficiency of qi and blood (1 case) were found. The Kampo prescriptions were as follows: nyoshinsan (2), kamishoyosan (2), tsudosan (1), shigyakusan (1) and kyukichoketsuin (1). Stagnation of liver (TM) qi was considered to play a role in infertility and is one of the important factors in Kampo prescriptions.
5.Characterization of the Body Constituent Patterns for Symptomatic Acute Cerebral Infarction Using qi-ketsu-sui Score
Yoshikazu MIZOI ; Koichiro TANAKA ; Shinichiro UEDA ; Hideyuki ISOBE ; Kazuhiko NARA ; Koki CHIBA ; Nobuo ARAKI ; Toshimasa YAMAMOTO
Kampo Medicine 2018;69(4):321-327
We evaluated body constituent patterns of 130 consecutive patients with symptomatic acute cerebral infarction. They comprise lacunar infarction (n = 47), atherothrombotic infarction (n = 70), cardiogenic embolism (n = 11), and other type of infarction (n = 2). We compared body constituent patterns between them and 93 consecutive patients with other neurological diseases of the same age. We used qi-ketsu-sui scores to evaluate body constituent patterns in all cases. Qi-ketsu-sui scores measure six factors : qi deficiency (kikyo), qi stagnation (kiutsu), qi counterflow (kigyaku), blood deficiency (kekkyo), blood stasis (oketsu), and fluid retention (suitai). As a result of multivariate model analysis, symptomatic acute cerebral infarction had the largest weight of blood stasis and an adjusted odds ratio (95% confidence interval) was 4.6 (2.45-8.91). Even when gender as a confounding factor was adjusted by stratified analysis, adjusted odds ratios of blood stasis (95% confidence interval) were 7.46 (3.02-20.25) for males and 2.63 (1.02-7.11) for females, and those were maximum. The point (median, interquartile range) of blood stasis was more severe in acute cerebral infarction (24 points, 18-33 points) than other neurological diseases (16 points, 9-23 points). We examined relationships between body constituent patterns and clinical disease type, severity at hospitalization, and sex in patients with symptomatic acute cerebral infarction. Ratio of blood stasis was the largest in any clinical disease type, severity and sex. Blood stasis seemed to be the most important factor in symptomatic acute cerebral infarction.
6.A Case of Low Vision with Tonic Accommodation Exacerbated by Fatigue and Successfully Treated by Shokenchuto
Hiroko TAKAHASHI ; Koichiro TANAKA ; Koki CHIBA ; Kazuhiko NARA
Kampo Medicine 2017;68(1):23-28
An 8-year-old girl was admitted with vision loss. She had no history of amblyopia or other eye diseases. On examination, both eyes showed vision loss and uncorrected myopia, regardless of visual acuity correction by glasses. Her symptoms were considered exacerbated by fatigue. We diagnosed tonic accommodation because a regulatory paralysis agent provided relief. The patient had been treated with tropicamide methyl sulfate and neostigmine, but her visual acuity did not change. Based on a Kampo diagnosis, she was prescribed Shokenchuto. After 4 months' administration, her uncorrected vision improved by 1.2 in both eyes, and her visual acuity was maintained even when fatigued. Kampo medicine can be a treatment option for tonic accommodation in cases where standard treatments are ineffective.
7.Patient Taking Daikenchuto for More than 10 years Suffers from Excess Heat
Tomoko ITOGA ; Koki CHIBA ; Hiroko TAKAHASHI ; Kazuhiko NARA ; Koichiro TANAKA
Kampo Medicine 2017;68(2):123-126
A 54-year-old female had cesarean sections at ages 26 and 29, a left salpingophrectomy for left ovarian cyst at age 31, and a total abdominal hysterectomy for fibroids at age 41. After total abdominal hysterectomy, she had repeated bouts of ileus and started taking daikenchuto (DKT), which is commonly used to prevent ileus. At age 54, she visited our hospital when DKT failed to relieve her constipation and lower abdominal pain and had occasional heat flash above her neck. Tongue examination revealed pale red tongue and fissured tongue signs with yellow fur and dilation of the sublingual collateral vessels. Kampo diagnosis was blood stasis and excess heat, for which keishibukuryogan was prescribed to be taken daily and with which her symptoms dissipated after 7 days. Despite the popular use of DKT, its potential to cause excess heat after long-term use is not as well known. It is extremely important to warn clinicians who prescribe Kampo not to focus solely on a disease-to-prescription model but also to be learned of the discipline and to take measures to prevent adverse long-term effects and complications.
8.Effects of implant tilting and the loading direction on the displacement and micromotion of immediately loaded implants: an in vitro experiment and finite element analysis.
Tsutomu SUGIURA ; Kazuhiko YAMAMOTO ; Satoshi HORITA ; Kazuhiro MURAKAMI ; Sadami TSUTSUMI ; Tadaaki KIRITA
Journal of Periodontal & Implant Science 2017;47(4):251-262
PURPOSE: The purpose of this study was to investigate the effects of implant tilting and the loading direction on the displacement and micromotion (relative displacement between the implant and bone) of immediately loaded implants by in vitro experiments and finite element analysis (FEA). METHODS: Six artificial bone blocks were prepared. Six screw-type implants with a length of 10 mm and diameter of 4.3 mm were placed, with 3 positioned axially and 3 tilted. The tilted implants were 30° distally inclined to the axial implants. Vertical and mesiodistal oblique (45° angle) loads of 200 N were applied to the top of the abutment, and the abutment displacement was recorded. Nonlinear finite element models simulating the in vitro experiment were constructed, and the abutment displacement and micromotion were calculated. The data on the abutment displacement from in vitro experiments and FEA were compared, and the validity of the finite element model was evaluated. RESULTS: The abutment displacement was greater under oblique loading than under axial loading and greater for the tilted implants than for the axial implants. The in vitro and FEA results showed satisfactory consistency. The maximum micromotion was 2.8- to 4.1-fold higher under oblique loading than under vertical loading. The maximum micromotion values in the axial and tilted implants were very close under vertical loading. However, in the tilted implant model, the maximum micromotion was 38.7% less than in the axial implant model under oblique loading. The relationship between abutment displacement and micromotion varied according to the loading direction (vertical or oblique) as well as the implant insertion angle (axial or tilted). CONCLUSIONS: Tilted implants may have a lower maximum extent of micromotion than axial implants under mesiodistal oblique loading. The maximum micromotion values were strongly influenced by the loading direction. The maximum micromotion values did not reflect the abutment displacement values.
Dental Implants
;
Finite Element Analysis*
;
Immediate Dental Implant Loading
;
In Vitro Techniques*
9.A Case of Fatigue-Related Gingival Bleeding with Spleen Failing to Control the Blood Successfully Treated with Kamikihito During theTreatment of Other Symptoms
Noritada KATO ; Koichiro TANAKA ; Tomoko NIIMI ; Sadahiro TAMASHIMA ; Kazuhiko NARA ; Koki CHIBA ; Hiroko TAKAHASHI ; Chiho OTANI
Kampo Medicine 2017;68(3):218-221
In dentistry, it is empirically known that the acute exacerbation of periodontal disease often occurs at the time of fatigue, but scientific verification has never been made about the relationship of fatigue and bleeding. In Kampo medicine, there is the concept of spleen failing to control the blood as bleeding at the time of fatigue. Kihito and kamikihito are often used for this condition. Spleen failing to control the blood means that lack of vital energy causes the bleeding. Kamikihito is most often used in the treatment of idiopathic thrombocytopenic purpura. Moreover, there have been some reports on the use of kamikihito in the treatment of gynecological fraud bleeding and aplastic anemia. However, there has been no report on the use of it in the treatment of gingival bleeding. In this case, neither cytopenia nor obvious coagulopathy was recognized. In Kampo medicine, not only spleen failing to control the blood but also blood stasis or blood heat is considered to be the cause of bleeding, but the effectiveness of kamikihito for this case suggested pathophysiology of spleen failing to control the blood. Kamikihito could be a choice to treat gingival bleeding at the time of fatigue.
10.The effects of bone density and crestal cortical bone thickness on micromotion and peri-implant bone strain distribution in an immediately loaded implant: a nonlinear finite element analysis.
Tsutomu SUGIURA ; Kazuhiko YAMAMOTO ; Satoshi HORITA ; Kazuhiro MURAKAMI ; Sadami TSUTSUMI ; Tadaaki KIRITA
Journal of Periodontal & Implant Science 2016;46(3):152-165
PURPOSE: This study investigated the effects of bone density and crestal cortical bone thickness at the implant-placement site on micromotion (relative displacement between the implant and bone) and the peri-implant bone strain distribution under immediate-loading conditions. METHODS: A three-dimensional finite element model of the posterior mandible with an implant was constructed. Various bone parameters were simulated, including low or high cancellous bone density, low or high crestal cortical bone density, and crestal cortical bone thicknesses ranging from 0.5 to 2.5 mm. Delayed- and immediate-loading conditions were simulated. A buccolingual oblique load of 200 N was applied to the top of the abutment. RESULTS: The maximum extent of micromotion was approximately 100 μm in the low-density cancellous bone models, whereas it was under 30 μm in the high-density cancellous bone models. Crestal cortical bone thickness significantly affected the maximum micromotion in the low-density cancellous bone models. The minimum principal strain in the peri-implant cortical bone was affected by the density of the crestal cortical bone and cancellous bone to the same degree for both delayed and immediate loading. In the low-density cancellous bone models under immediate loading, the minimum principal strain in the peri-implant cortical bone decreased with an increase in crestal cortical bone thickness. CONCLUSIONS: Cancellous bone density may be a critical factor for avoiding excessive micromotion in immediately loaded implants. Crestal cortical bone thickness significantly affected the maximum extent of micromotion and peri-implant bone strain in simulations of low-density cancellous bone under immediate loading.
Bone Density*
;
Dental Implants
;
Finite Element Analysis*
;
Mandible


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