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Application of ICP-DRC-MS to screening test of strontium and plutonium in environmental samples at Fukushima. Appl Radiat Isot 2013; 81:201-7. [DOI: 10.1016/j.apradiso.2013.03.056] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Accepted: 03/14/2013] [Indexed: 11/26/2022]
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Adaptive fuzzy control of nutrients concentration in fed-batch culture of mammalian cells. Cytotechnology 2012; 25:9-15. [PMID: 22358875 DOI: 10.1023/a:1007950002663] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
An adaptive fuzzy controller was developed to control the glucose and glutamine concentrations in the reactor constant at the desired level. The parameter values of the controller change during the cultivation according to the culture phase which was detected by the lactate concentration. Cultivations with different glucose and glutamine set point concentrations of a recombinant BHK anchorage-dependent cell line were performed in a fed-batch reactor on-line connected with an HPLC system. Glucose and glutamine concentrations were satisfactorily controlled at each set point during all cultivation periods. Ammonia had a determining effect on productivity since it inhibited cell growth and protein specific production. Ammonia production increased with an increase of glutamine or a decrease of glucose set point concentrations, indicating the importance of glucose to glutamine ratio for the optimization of productivity in mammalian cell cultures.
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Abstract
We evaluated the analgesic effects of acupuncture on postoperative pain by comparing patients who underwent routine tooth extraction alone (control group) and those who underwent tooth extraction in combination with acupuncture (experimental group) by the random allocation method. As teeth easy to extract. requiring no gingival incision (grade A) or those difficult to extract, requiring gingival incision or bone cutting (grade B). As local anesthesia, 1.8 ml or 3.6 ml of 2% xylocaine was used. The LI.4, Hegu on both sides and ST.7, Xiaguan and ST.6, Jiache on the affected side were selected. Low frequency electrical acupuncture was performed. When acupuncture was used in combination with tooth extraction, 3 of 22 patients did not develop postoperative pain. In patients with wisdom teeth difficult to extract (grade B), acupuncture used in combination with local anesthesia decreased postoperative pain.
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Effects of Particle Size and Cholesterol Content on the Partition Coefficients of Chlorpromazine and Triflupromazine between Phosphatidylcholine-Cholesterol Bilayers of Unilamellar Vesicles and Water Studied by Second-Derivative Spectrophotometry. J Colloid Interface Sci 1999; 220:81-87. [PMID: 10550243 DOI: 10.1006/jcis.1999.6505] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Phosphatidylcholine(PC)-cholesterol (0-30 mol%) unilamellar vesicles of several sizes (20-600 nm) were prepared in buffer (pH 7.4) solutions by sonication or extrusion methods. The vesicle size was measured by a dynamic light-scattering method. Absorption spectra of chlorpromazine (CPZ) and triflupromazine (TFZ) in the presence of these vesicles showed a bathochromic shift according to the increase in vesicle concentration, but the counterbalance of the baseline was incomplete due to the intensive light scattering by the vesicles; thus, no isosbestic point could be observed. In the second-derivative spectra, the residual background signal effects were eliminated and three derivative isosbestic points were clearly observed for both drugs. The derivative intensity change (DeltaD) induced by the addition of the vesicles was measured at the lambda(max) of each drug. From the relationship between the DeltaD value and the lipid concentration, the partition coefficients (K(p)) of CPZ and TFZ between these vesicles and water (buffer) were calculated. The results revealed that the vesicle size (20-600 nm) and preparation method do not affect the K(p) values, and although the incorporation of cholesterol into the PC bilayers induces a decrease of the K(p) values, the vesicle size also did not affect the K(p) values in vesicles of the same cholesterol content. Copyright 1999 Academic Press.
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Experimental investigations on relationships between myocardial damage and laser type used in transmyocardial laser revascularization (TMLR). THE KOBE JOURNAL OF MEDICAL SCIENCES 1999; 45:127-36. [PMID: 10752307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Transmyocardial laser revascularization (TMLR) using a CO2 laser is clinically attempted in end-stage ischemic heart disease that is not treated by conventional bypass grafting or transluminal angioplasty. Besides, clinical trials of TMLR using a Ho:YAG laser have started recently. In this study, we compared the degree of damage to normal myocardium using these 2 types of lasers. Hearts of adult mongrel dogs were exposed under general anesthesia. Dogs were divided into 2 groups; those with channels made in the left ventricle by CO2 laser (CO2 group, n = 5) and those with channels made by Ho:YAG laser (Ho:YAG group, n = 5). The chest was temporarily closed, then serum MB isozyme of creatinine kinase (CK-MB) and troponin T (TnT) were measured sequentially. Twenty-four hours after laser irradiation, hearts were isolated for pathological studies with hematoxylin-eosin and Masson's trichrome stains. The CO2 group produced CK-MB with a peak of 1162.2 +/- 462.2 IU/l and the Ho:YAG group 1804.0 +/- 992.4 IU/l after 12 hours, and there was a significant difference between two groups (p < 0.01). The CO2 group produced TnT with a peak of 1.2 +/- 0.4 ng/ml and the Ho:YAG group 11.6 +/- 4.1 ng/ml after 6 hours, and the peak value in Ho:YAG group was significantly higher than that in the CO2 group (p < 0.001). Thirty channels were confirmed histologically in the CO2 group, and the width of thermal damage layer around the channel lumen was 249 +/- 83 microns. Twenty-seven channels were confirmed histologically in the Ho:YAG group, and the width of thermal damage layer was 760 +/- 288 microns. Thermal damage in the Ho:YAG group was significant greater than that in the CO2 group (p < 0.01). We concluded that TMLR using a CO2 laser is more suitable for end-stage myocardial ischemia than a Ho:YAG laser in terms of myocardial damage.
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Reperfusion in acute ischemic myocardium by transmyocardial revascularization using CO2 laser. THE KOBE JOURNAL OF MEDICAL SCIENCES 1999; 45:109-18. [PMID: 10752305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Transmyocardial laser revascularization (TMLR) is currently applied to provide clinical benefits in the patients with end-stage coronary artery disease. However, this method is so far indicated only for chronic status of ischemic heart disease. In this study, we have investigated in the canine model whether acute ischemic myocardium could be reperfused by TMLR using CO2 laser. A CO2 laser was used to create transmural myocardial channels. The ischemic areas of 3 cm in diameter were created on the left ventricle with multiple coronary ligations. Laser procedure was carried out 30 minutes after coronary ligation in TMLR group (n = 6), while laser treatment was not performed after coronary ligation in acute myocardial infarction (AMI) group (n = 6). The level of MB isozyme of creatinine kinase (CK-MB) derived from coronary sinus was measured at 0, 3, 6, 12, 18, 24, and 48 hours after coronary ligations, and the pattern of serial CK-MB changing was analyzed. Animals were sacrificed 48 hours after treatment and histologically investigated. The time to peak level of CK-MB in TMLR group appeared significantly earlier (13.0 +/- 2.4 hours) than that in AMI group (22.0 +/- 3.1 hours). The value of CK-MB of 24 hours after ligation in TMLR group (1985 +/- 805 IU/L) was significantly lower than that in AMI group (4759 +/- 778 IU/L). The channels on the gross section after 48 hours of TMLR were patent with some of fibrin network. Red blood cells were scattered in the lumens. It was suggested that acute ischemic myocardium was directly reperfused through the open laser channels from the left ventricular chamber in the canine model.
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Pathological analysis of transmyocardial laser revascularization for acute myocardial ischemia. THE KOBE JOURNAL OF MEDICAL SCIENCES 1999; 45:93-107. [PMID: 10572392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Transmyocardial laser revascularization (TMLR) is an alternative surgical procedure for the patients with intractable coronary artery disease. Efficacy of the treatment has been established, however, the mechanism of TMLR is still controversial. In this study, we investigated the effect of TMLR on acute myocardial ischemia with pathological analysis. Under general anesthesia, the hearts of mongrel dogs were exposed. Then, the anterior descending branch of the left coronary artery was ligated to make the ischemic area on the left ventricle. Laser punctures were made 30 minutes after coronary ligation in the TMLR group (n = 5), and no further procedure was performed after coronary ligation in the AMI group (n = 5). One month after these operations, the hearts were extirpated for pathological studies. The avascular area and the viable area in the infarcted area were macroscopically separated by Evans blue dye and triphenyltetrazolium chloride (TTC) staining. Thickness of the left ventricular wall in the infarcted area was also measured and compared. Furthermore, all of the infarcted area and the lased area were microscopically examined with Masson's trichrome stain. The size of the infarcted area in the TMLR group was smaller than that in the AMI group. It was significantly different (p < 0.05) in the basal and apical regions. As a result, the ratio of the viable area by the avascular area was larger in the TMLR group than in the AMI group. It was significantly different (p < 0.05) in the apical region. In the basal region, the thickness of the left ventricle in the AMI group was thinner than that of untreated dogs (normal group: n = 5), and there was no difference between the normal group and the TMLR group. Whereas in the apical region, significant difference of the thickness was found among AMI, TMLR, and normal groups (p < 0.05). In conclusion, our study supported; 1) TMLR reduced overall infarcted size, and increased the viable area in the infarcted area, 2) TMLR prevented the thinning of the left ventricular wall.
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[Preoperative diagnosis and surgical treatment for lymph node metastasis in gastric cancer]. Gan To Kagaku Ryoho 1996; 23:1275-83. [PMID: 8831739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In order to clarify the preoperative diagnostic ability for lymph node metastasis, images from magnetic resonance imaging (MRI), computed axial tomography (CT) and ultrasonography (US) were evaluated in 200 gastric cancer patients. The long-term results of 2,000 gastric cancer patients who had undergone gastrectomy were also studied to evaluate the effectiveness of lymphadenectomy. 1) Preoperative diagnosis of lymph node metastasis: The detection rate of lymph nodes around the stomach was 34.1% in MRI, 18.7% in CT and 5.0% in US. The incidence of metastasis was over 80% when the size of lymph node imaged was 1.5 cm and over, against 25% for lymph nodes less than 1.0 cm in size. The detection rate of metastatic lymph node according to the mode of metastasis was 88% for macro-nodular type, 66% for micro-nodular type, 57% for diffuse type in MRI, 70, 41 and 15% in CT, and 38, 3, 0% in US, respectively. Therefore, MRI was most useful for detecting metastatic lymph node preoperatively. 2) Long-term results of gastric cancer with lymph node metastasis: The cumulative 5-year survival rate was 84.2% in n0, 56.1% in n1, 33.7% in n2, 16.5% in n3, and 5.1% in n4 patients. Satisfactory long-term results were obtained for n2 or less patients without serosal invasion. Moreover, by paraaortic lymph node dissection, the cumulative 5-year survival rate in n4 patients was 16.4% (27.8% for cases with radical resection). These results showed the effectiveness of lymph node dissection for gastric cancer.
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A clinical study on SSP (silver spike point) electro-therapy combined with splint therapy for temporo-mandibular joint dysfunction. ACUPUNCTURE ELECTRO 1995; 20:7-13. [PMID: 7572330 DOI: 10.3727/036012995816357177] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
When the functional limits of the muscles related to the temporo-mandibular joint and adjacent tissue exceed their anatomical capability, pain, crepitation, and functional abnormality appear as the main complaints. Although the precise nature of the condition is unknown, pain at the temporo-mandibular joint sometimes in combination with muscular tension is assumed to be due to compression of the myoneural mechanism. It is reported that occlusal lifting using a splint enables the alleviation of this muscular tension. On the other hand, there are only a few reports on the usefulness of SSP therapy for Temporo-Mandibular Joint Dysfunction. We studied the efficacy of SSP therapy combined with splint therapy in 33 patients diagnosed as having Temporo-Mandibular Joint Dysfunction who consulted our department primarily due to pain, and report our findings below. Evaluation of the results was conducted 2 weeks later. Very beneficial results were seen in 6 cases. Beneficial results were seen in 7 cases. Slightly beneficial results were seen in 18 cases, while there were no changes found in 2 cases. When combined SSP and splint therapies were conducted for Temporo-Mandibular Joint Dysfunction, favorable results were seen in about 90% of the cases.
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Isolation and characterization of a dipeptidyl aminopeptidase from Streptomyces sp. WM-23. Biosci Biotechnol Biochem 1994; 58:1545-6. [PMID: 7765287 DOI: 10.1271/bbb.58.1545] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A screening test was undertaken to isolate microorganisms that produced dipeptidyl aminopeptidase. The hydrolytic activity toward alanyl-phenylalanine p-nitroanilide was found in a culture filtrate of a actinomyces strain (WM-23), newly isolated from a soil sample. The enzyme (WM-23 dipeptidyl aminopeptidase) was isolated from the culture filtrate as a homogeneous preparation. The WM-23 enzyme, inhibited by phenylmethylsulfonyl fluoride, may be classified to mammalian dipeptidyl aminopeptidase II. The enzymatic characteristics were investigated.
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[A case of acute aortic dissection with aortic regurgitation successfully treated by postoperative ECMO]. KYOBU GEKA. THE JAPANESE JOURNAL OF THORACIC SURGERY 1994; 47:283-7. [PMID: 8152174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A case of acute aortic dissection (Stanford Type A) with severe aortic regurgitation successfully treated by postoperative ECMO was reported. The patient was 41-year-old man in shock condition and was transferred to Kobe University Hospital. Chest CT scan and echocardiogram revealed acute aortic dissection with severe aortic regurgitation. An emergent operation by Collins' method and resuspension of aortic valve were carefully performed. Consequent ECMO was necessitated because of postoperative left ventricular and respiratory failure. Thereby, ECMO using heparin-coated CBAS-MAXIMA membrane oxygenator, centrifugal pump, and tubes was established by arterial cannulation via the anastomotic site of the ascending aorta to prevent the obstruction of the aortic true lumen by the false lumen which may be enlarged by retrograde perfusion via the femoral artery. Left ventricular function and pulmonary function were improved after 6 hours and 20 minutes, thus ECMO was successfully weaned without any complications.
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Studies on the enhanced effect of acupuncture analgesia and acupuncture anesthesia by D-phenylalanine (2nd report)--schedule of administration and clinical effects in low back pain and tooth extraction. ACUPUNCTURE ELECTRO 1990; 15:121-35. [PMID: 1978503 DOI: 10.3727/036012990816358252] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
D-phenylalanine (DPA) is known to block the activity of carboxypeptidase, an enzyme which degrades enkephalins, endogenous morphine-like substances. Therefore, it is considered that DPA administered as an inhibiting drug of this degrading enzyme might prolong analgesia induced by acupuncture. 1) Thirty patients suffering from chronic low back pain were treated with acupuncture 30 minutes after the oral administration of 4.0 grams of DPA. The results were: excellent in 7 cases, good in 11, fair in 6 and poor in 6. Cases graded excellent and good were then compared with a placebo group. The effect was increased 26% in the DPA-acupuncture group, which shows no statistically significant difference (P less than 0.1). 2) In 56 patients, tooth extraction was performed under acupuncture anesthesia: 18 had received 4.0 gram of DPA (P.O.) 30 minutes earlier. The results were excellent in 8, good in 6, fair in 3, and poor in 1. The excellent and good cases were compared with 38 placebo group cases. The effect in the DPA-acupuncture anesthesia group was significantly increased by 35% (P less than 0.01). 3) In order to determine the optimum time for the administration of DPA, two schedules of administration were compared. [1] DPA was given on the previous day in three 0.5 gram doses (26 cases). [2] A single 4 gram dose was administered 30 minutes before treatment (30 cases). The results from the "excellent", "good" and "fair" cases showed a 16% increase in effectiveness when DPA was administered the day before, not a statistically significant difference (P less than 0.1), but a clear tendency to increase was observed. The above findings show that DPA has an enhancing effect on acupuncture analgesia and anesthesia in clinical practice.
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Can alcohol drinking actually blunt pin sensitivity? Pain 1990. [DOI: 10.1016/0304-3959(90)92711-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Studies on the enhanced effect of acupuncture analgesia and acupuncture anesthesia by D-phenylalanine (first report)--effect on pain threshold and inhibition by naloxone. ACUPUNCTURE ELECTRO 1988; 13:87-97. [PMID: 2904213 DOI: 10.3727/036012988816358705] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
It has been claimed that the mechanism of acupuncture analgesia can be explained in part by endogenous opioids. If so, it might be possible to enhance the analgesic effect of acupuncture by the administration of endorphins. If D-phenylalanine (DPA), an inhibitor of the endorphin degrading enzyme, is administered, the analgesic effect of acupuncture should be prolonged due to the increased level of endorphins. From the changes of the pain threshold (PT), we investigated whether or not the pre-administration of DPA can enhance the analgesic effect of acupuncture in humans. In addition, we examined the inhibitory effect of naloxone. 1) In all five subjects whose PT was raised after acupuncture anesthesia (respondents), the rise in PT was significantly prolonged by DPA. 2) Out of 10 subjects whose PT remained almost unchanged after acupuncture anesthesia (non-respondents), the PT was increased by DPA in 5 cases. 3) The rise in PT was most prominent when DPA was administered 30 minutes before the start of acupuncture anesthesia. 4) In all 4 respondents in whom the rise in PT persisted after DPA and acupuncture anesthesia, their raised PT dropped after the intravenous injection of naloxone (10 mg). 5) These findings show that DPA enhances the analgesic effect of acupuncture by the "endorphin mechanism."
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Comparison of the effects of leaving needle, direct current electrical acupuncture, and low-frequency electrical acupuncture therapy. ACUPUNCTURE ELECTRO 1986; 11:101-10. [PMID: 2879413 DOI: 10.3727/036012986816359166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
During a 3 year period from 1978 to 1980, one hundred and seventeen patients who came to the Pain Clinic of the Department of Anesthesiology of the Osaka Medical College complaining of pain, were treated with leaving needle(LN), direct current electrical acupuncture (EAP), or low-frequency electrical acupuncture(LFEA). The immediate effects of these therapies were investigated in a period of 3 days after treatment, on the basis of the patient's subjective evaluation of his relief from pain on a scale of 10 before treatment. Appearance patterns of therapeutic effects of these therapies were divided into four types: persistent (therapeutic effects persist during the 3 day period immediately after treatment), downward (therapeutic effects gradually decrease immediately after treatment), upward (therapeutic effects gradually appear after treatment), and unaltered (therapeutic effects were fair or poor during the 3 days after treatment). In addition, it was seen that of the three therapies LFEA was the best one in producing a persistent therapeutic effect and a good rate of effectiveness in the first day immediately after treatment.
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Favorable therapeutic effect for temporomandibular arthrosis by SSP therapy. Pain 1984. [DOI: 10.1016/0304-3959(84)90351-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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[Thin film coating of solid substrates having complex surface structures by plasma-polymerized tetrafluoroethylene]. YAKUGAKU ZASSHI 1983; 103:719-25. [PMID: 6663449 DOI: 10.1248/yakushi1947.103.7_719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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[Attempt at slow release of pharmaceuticals from solid drugs through a plasma-polymerized tetrafluoroethylene coating]. YAKUGAKU ZASSHI 1983; 103:726-31. [PMID: 6663450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Comparison of the analgesic effects of needle electrodes, SSP and plate (TNS) electrodes, by means of measured pain threshold. Pain 1981. [DOI: 10.1016/0304-3959(81)90546-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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An experimental study on the enhancing effects of phenylalanine on acupuncture analgesia. THE AMERICAN JOURNAL OF CHINESE MEDICINE 1981; 9:243-8. [PMID: 7053024 DOI: 10.1142/s0192415x81000329] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
In this preliminary study we examined the enhancing effect of D-phenylalanine on acupuncture anesthesia. We made 4 different kinds of experiments with 3 volunteers. The results show that D-phenylalanine extends the analgesic effect of acupuncture analgesia remarkably, with no exception in 3 cases. According to these facts, we believe that these findings have an important meaning for those who are engaged in acupuncture treatment or research.
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[Hydrophobic coating of solid materials by plasma-polymerized thin film using tetrafluoroethylene (author's transl)]. YAKUGAKU ZASSHI 1979; 99:521-7. [PMID: 544780 DOI: 10.1248/yakushi1947.99.5_521] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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The effects of stimulation of ear acupuncture points on the body's pain threshold. THE AMERICAN JOURNAL OF CHINESE MEDICINE 1979; 7:241-52. [PMID: 506987 DOI: 10.1142/s0192415x79000209] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Six ear acupuncture points, one non-acupuncture ear point, and the body locus Ho-Ku (LI-4) were electrically stimulated in order to compare the effects of stimulation on the body's pain threshold at selected loci on various points on the body by measurement with a radiation heat-type Pain Meter on 5 subjects. The ear points, with the exception of the non-acupuncture ear point, were found to be effective even in peripheral body regions in varying degrees. Ear stimulation did not increase the threshold as rapidly as Ho-Ku. In all cases where the pain threshold was raised, the effect persisted after electrical stimulation had stopped.
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