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Three poorly soluble drugs (chloramphenicol, phenacetin and prednisolone) were compressed into tablets of 10% drug content on a physical testing instrument at three different compression pressures. The dissolution profiles were determined by a modification of the U.S.P. method for drug suspensions, granules before compression, disintegrated and intact tablets. By comparison of the dissolution rates for disintegrated tablets with those for granules before compression, or suspensions, it is possible to separate the change in particle size during compression from the pressure-dependent dissolution behaviour of intact tablets. A comparative measurement of dissolution for disintegrated tablets with that for granules provides a useful method for elucidating the particle bonding or cleavage within the tablet during compression. 相似文献
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TAKENAO HASEGAWA MASASHI YONEDA KIMIHIDE NAKAMURA KUNIYO OHNISHI HIROYUKI HARADA TAKESHI KYOUDA YOSHIKAZU YOSHIDA ISAO MAKINO 《Journal of gastroenterology and hepatology》1998,13(12):1201-1206
Dumping syndrome commonly occurs after gastrectomy. The late dumping, which is one of the dumping syndromes, is due to postprandial hypoglycaemia caused by an excessive insulin secretion after a sharp rise in plasma glucose. Several treatments, including operation, dietary fibre and somatostatin, have been attempted to relieve dumping symptoms. These treatments take effect through modulation of plasma insulin and glucose levels, but their efficacy is still under consideration. α-Glucosidase inhibitor attenuates the postprandial increase of plasma glucose levels and is widely used for treatment of non-insulin-dependent diabetes mellitus (NIDDM). The acute effect of α-glucosidase inhibitor on late dumping syndrome has been reported by some studies with test meals. The purpose of this study was to evaluate a long-term effect of α-glucosidase inhibitor treatment with ordinary meals in late dumping patients with NIDDM because administration of α-glucosidase inhibitor is only ethically allowed for diabetic patients in Japan. Six late dumping patients with NIDDM were orally administered α-glucosidase inhibitor, acarbose (50 or 100 mg), three times a day before each meal for 1 month. Diurnal changes of plasma glucose, insulin and pancreatic glucagon levels were compared before and after the α-glucosidase inhibitor treatment. All patients had late dumping-related symptoms, such as weakness, palpitation and dizziness before the induction of α-glucosidase inhibitor treatment. Patients suffered from a rapid fall in plasma glucose levels from hyperglycaemia at the same time as dumping symptoms. These late dumping-related symptoms disappeared and a rapid change of plasma glucose and insulin levels were attenuated after the α-glucosidase inhibitor treatment. These data suggest a long-term therapeutic efficacy of α-glucosidase inhibitor for late dumping patients. 相似文献
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Haruo ICHIKAWA Shuji IKEDA Masami HASHIMOTO Yoshio NAGAKE Kazue HIRONAKA Kenichi SHIKATA Hirofumi MAKINO 《Nephrology (Carlton, Vic.)》1997,3(5):381-384
Summary: A 47-year-old woman was admitted to the hospital for evaluation of proteinuria. Bilateral sensorineural deafness had been diagnosed previously at age 35. She had a positive family history of deafness going back three generations. A renal biopsy showed the presence of highly organized fibrillary deposits in the subendothelial mesangial areas. the microfibrils had a diameter of 11-16 nm, larger than the diameter of amyloid fibrils, and did not have a microtubular appearance. the renal specimen was negative for Congored staining. There was no clinical or serologic evidence of paraproteinaemia, cryoglobulinaemia, light-chain disease, or systemic lupus erythematosus. the diagnosis was fibrillary glomerulonephritis. This is the first known case of fibrillary glomerulonephritis in a patient with familial sensorineural deafness. 相似文献
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ABSTRACT Wassel's classification of thumb polydactyly has some problems especially in categories IV and VII because it depends solely on X-ray findings. In order to improve his thumb polydactyly classification, we examined histologically untreated 182 bifid thumbs from 171 patients at Branch Hospital, Nagoya University in the past eight years. Ninety-five of these cases had proximal phalangeal separate type of polydactyly corresponding to Wassel's categories IV and VII. Forty-five thumbs of these categories were excised from 44 patients and classified into type I (24 cases), type II (12). type III (4), and type IV (5) in accordance with Kanno's classification. In distal phalanges, normal cartilage development was observed in Kanno's type I, whereas proximally elongated cartilaginous tissue was formed in the type II. Three distal phalanges from types II and III showed depression at the ulnar side of elongated cartilage of the distal phalanx where immature chondrocytes transversely distributed. Three cases with incomplete and one case with complete joint formation were formed in elongated cartilage of the distal phalanx, and endochondral ossification developed in the central area of elongated cartilage of the distal phalanx in four cases from types III and IV. All of the cases showed only minimal mobility of their involved joints. Their tendon development did not correspond to their anatomical characteristics. Histological studies indicated that there was no distinct difference between Wassel's category IV and category VII. It was postulated that the triphalang- 相似文献
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YUTAKA ARAI AKIRA SHIBATA KAZUYA KAZAMA HIDEO MAKINO YOSHIAKI SAITOH 《Pacing and clinical electrophysiology : PACE》1984,7(6):973-978
Patients with suspected Adams-Stokes syndrome are examined by Holter monitoring. During the monitoring, there is the danger of syncopes occurring and there are even reports of sudden cardiac death. We therefore developed a pacemaker for cardiac arrest monitoring and the prevention of Adams-Stokes syndrome and sudden cardiac death, which has the following functions: (1) the longest escape interval of the pacemaker not exceeding the value at which syncope is induced is determined by the decline of the mean heart rate including the asystole to a certain threshold rate; (2) once the pacemaker escapes from the interval it continues pacing for a while at a physiological rate to allow recover from ischemias in organs or tissues; and (3) to prevent overdrive suppression to the heart, the pacing rate gradually declines and stops pacing until the next asystole. This pacemaker is useful not only in the diagnosis of Adams-Stokes syndrome but also in pharmacological and pathophysiological studies and in determining when pacing should cease. 相似文献
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