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51.
Hiromi Nagai Hideo Arai Fumio Ariji Noboru Asoö Tadao Ishikawa Hirosi Sato Atsunobu Yokosawa Masakichi Motomiya Kiyoshi Konno 《Lung》1978,154(1):113
Guinea pigs received 5 daily injections of Freund’s complete adjuvant and the changes in the lung were investigated by light microscope and electron microscope. In the 20th week of experiment, fibrotic changes were found around the granulomata close to the surface of the lung. In addition the fraction of glycosaminoglycans was isolated from the lung and analyzed quantitatively. As a result, a decrease in quantity of hyaluronic acid and an increase in quantity of dermatan sulfate were observed. 相似文献
52.
Shinji Naganawa Rintaro Ito Yutaka Kato Hisashi Kawai Toshiaki Taoka Tadao Yoshida Katsuya Maruyama Katsutoshi Murata Gregor Krzdrfer Josef Pfeuffer Mathias Nittka Michihiko Sone 《Magnetic resonance in medical sciences》2021,20(1):91
Purpose:To evaluate the feasibility for the detection of slight contrast effects after intravenous administration of single dose gadolinium-based contrast agent (IV-SD-GBCA), the time course of the GBCA distribution up to 24 h was examined in various fluid spaces and brain parenchyma using 3D-real IR imaging and MR fingerprinting (MRF).Methods:Twenty-four patients with a suspicion of endolymphatic hydrops were scanned at pre-administration and at 10 min, 4 and 24 h post-IV-SD-GBCA. 3D-real IR images and MRF at the level of the internal auditory canal were obtained. The signal intensity on the 3D-real IR image of the cerebrospinal fluid (CSF) in the cerebellopontine angle cistern (CPA), Sylvian fissure (Syl), lateral ventricle (LV), and cochlear perilymph (CPL) was measured. The T1 and T2 values of cerebellar gray (GM) and white matter (WM) were measured using MRF. Each averaged value at the various time points was compared using an analysis of variance.Results:The signal intensity on the 3D-real IR image in each CSF region peaked at 4 h, and was decreased significantly by 24 h (P < 0.05). All patients had a maximum signal intensity at 4 h in the CPA, and Syl. The mean CPL signal intensity peaked at 4 h and decreased significantly by 24 h (P < 0.05). All patients but two had a maximum signal intensity at 4 h. Regarding the T1 value in the cerebellar WM and GM, the T1 value at 10 min post-IV-GBCA was significantly decreased compared to the pre-contrast scan, but no significant difference was observed at the other time points. There was no significant change in T2 in the gray or white matter at any of the time points.Conclusion:Time course of GBCA after IV-SD-GBCA could be evaluated by 3D-real IR imaging in CSF spaces and in the brain by MRF. 相似文献
53.
Takeshi Imamura Keiko Ogami-Takamura Kazunobu Saiki Ayami Hamamoto Daisuke Endo Kiyohito Murai Keita Nishi Junya Sakamoto Keishi Okamoto Joichi Oyamada Yoshitaka Manabe Toshiyuki Tsurumoto 《Journal of anatomy》2021,239(1):46-58
The diaphysis of the human femoral bone has a physiological anterior curvature; additionally, there is a curvature to the medial side or lateral side. In addition to compression stress from gravity during standing, walking, and running, these bones are continuously exposed to complex stresses from the traction forces of the various strong muscles attached to them. The femoral diaphysis is subjected to these mechanical stresses, and the direction and size of its curvature are defined according to Wolff's law and the mechanostat theory of Frost. The purpose of this study was to quantitatively evaluate the curvature of the femoral diaphysis in Japanese skeletons by determining the curve connecting the central mass distributions (CMD) of cross-sectional images. A total of 90 right femora (46 males and 44 females) were randomly selected from modern Japanese skeletal specimens. Full-length images of these bones were acquired using a clinical computed tomography scanner. The range between the lower end of the lesser trochanter and the adductor tubercle of each femur was divided at regular intervals to obtain ten planes, and nine levels were analyzed. The CMD curve was determined by connecting the CMDs of each of the nine cross-sections. First, the CMD of a cross-section in each of the nine slices was calculated, and the nine trajectories were superimposed from above. Then, by converting the shape of the entire CMD curve to superimpose the coordinates of the endpoint on the starting point, a closed arc representing the curvature of the femur was determined. For both males and females, the patterns varied from mostly medial to largely lateral curvature. The size of the curvature also varied for individuals. By analyzing only the coordinates of the vertex of the CMD curve of each femoral bone, the outlines of the diaphyseal curvatures could be recognized. The femora were thereby divided into two groups: medial bending and lateral bending. Considering males and females together, the number in the lateral-curvature group (n = 51) was larger than that in the medial-curvature group (n = 39). Moreover, the average age of the lateral-curvature group was significantly higher than that of the medial-curvature group (p < 0.05). In males, with an increase in the cortical bone proportion of the cross-sectional area, the anterior vertex of diaphyseal bending tended to be more prominent. This cortical proportion was significantly higher in the medial-curvature groups than in the lateral-curvature group (p < 0.01). The phenomena observed in this study may be related to pathophysiologies such as atypical fractures of the femur and osteoarthritis of the knee joints. 相似文献
54.
Yoshiaki Okumura Hisayuki Inoue Yoshihide Fujiyama Tadao Bamba 《Journal of gastroenterology》1995,30(4):493-499
Cholecystokinin (CCK) receptor antagonists have been reported on have an inhibitory effect on acute experimental pancreatitis, but their long-term administration is also reported to block pancreatic regeneration. We examined whether the short-term administration of KSG-504 )KSG), a synthetic CCK-A receptor antagonist, inhibited the regeneration of pancreatic acinar cells after ethionine-induced acute pancreatitis in rats. KSG (50 mg/kg), given 12 times by subcutaneous injection at 6-h intervals, prevented the reduction of protein, amylase, and trypsinogen levels, and the DNA content of the pancreas and facilitated the recovery of these values. Ornithine decarboxylase activity in pancreatic tissue and a 5-bromo-2′-deoxyuridine labeling study indicated that DNA synthesis was accelerated in rats treated with KSG. These findings suggest that the short-term administration of KSG inhibits the development of ethionine-induced acute pancreatitis and facilitates the regeneration of acinar cells. 相似文献
55.
Kujiraoka T Hattori H Ito M Nanjee MN Ishihara M Nagano M Iwasaki T Cooke CJ Olszewski WL Stepanova IP Egashira T Miller NE 《Atherosclerosis》2004,176(1):57-62
We have previously shown that intravenous apolipoprotein (apo) A-I/phosphatidylcholine (apo A-I/PC) discs increase plasma high-density lipoprotein (HDL) concentration in humans. We have now studied the associated changes in two enzymes, paraoxonase (PON) and platelet-activating factor acetylhydrolase (PAF-AH) that are carried in whole or in part by HDLs, and are thought to influence atherogenesis by hydrolyzing oxidized phospholipids in lipoproteins. Apo A-I/PC discs (40 mg/kg over 4 h) were infused into eight healthy males. Although plasma apo A-I and HDL cholesterol increased on average by 178 and 158%, respectively, plasma total PON and total PAF-AH concentrations did not rise. By the end of the infusion, HDL-associated PAF-AH had increased by 0.56 +/- 0.14 microg/mL (mean +/- S.D., P < 0.01), and nonHDL-associated PAF-AH had decreased by 0.84 +/- 0.11 microg/mL (P < 0.05). These changes were accompanied by an increase in the HDL-associated PAF-AH/apo A-I ratio from 0.19 to 0.35 (P < 0.05), and by a decrease in the nonHDL-associated PAF-AH/apo B ratio from 2.1 to 1.4 (P < 0.05). No changes in PON or PAF-AH concentrations were detected in prenodal lymph (tissue fluid), collected continuously from the leg. Our results show that the total concentrations of PON and PAF-AH in plasma are uninfluenced by plasma HDL concentration. PAF-AH transfers readily between HDLs and LDLs in vivo, and its distribution between them is determined partly by their relative concentrations and partly by HDL composition. 相似文献
56.
Prof. Dr. Jun-ichi Kawafuchi Dr. Takuo Shirakura Dr. Masami Azuma Dr. Tadao Tsunoda Dr. Tadashi Maekawa 《Annals of hematology》1970,20(2):69-75
Summary A case of cerebellar hemangioblastoma associated with slight but definite erythrocytosis is reported. Operative removal of the tumor resulted in the reversion to a normal blood picture. Erythropoietin-like activity, being non-dialyzable and relatively thermolabile, was detected in the fluid aspirated from tumor. The mother of the reported patient suffered from the same disease which was also associated with a slight degree of erythrocytosis.
Zusammenfassung Es wird über den Fall eines cerebellaren Hämangioblastoms begleitet von einer leichten, aber doch eindeutig diagnostizierten Erythrozytose berichtet. Die operative Entfernung des Tumors führte zu einer Renormalisierung des Blutbildes. In der aus dem Tumor aspirierten Flüssigkeit wurde eine erythropoetinähnliche Wirkung entdeckt, die relativ thermolabil und nicht dialysierbar war. Die Mutter des geschilderten Patienten litt an der gleichen Krankheit, die ebenfalls von einer Erythrozytose leichten Grades begleitet war.相似文献
57.
Murata H Kawano S Tsuji S Kamada T Matsuzawa Y Katsu K Inoue K Kobayashi K Mitsufuji S Bamba T Kawasaki H Kajiyama G Umegaki E Inoue M Saito I 《Journal of gastroenterology and hepatology》2003,18(9):1029-1033
BACKGROUND AND AIM: Little is known about the clinical efficacy of co-therapy of ecabet sodium, a mucoprotective agent, and a histamine H2-receptor antagonist. The aim of the present study was to assess its additive benefit in combination with cimetidine for gastric ulcer. METHODS: In this prospective randomized study, after gastric ulcer was confirmed by endoscopy, 200 patients in 47 hospitals received either ecabet sodium 1 g b.i.d and cimetidine 400 mg b.i.d. (EC), or cimetidine 400 mg b.i.d. alone (C) for 8 weeks. Healing was examined by endoscopy at 4 and 8 weeks. RESULTS: Of the intention-to-treat (ITT) population (EC, 103; C, 97), 181 patients comprised the per protocol (PP) analysis (EC, 93; C, 88). At 4 weeks, healing rates were significantly higher in the EC group (60%) than in the C group (36%) ( p < 0.01). At 8 weeks, those by the ITT and PP analyses were 82% (EC) versus 58% (C), and 90% (EC) versus 64% (C), respectively ( p < 0.01 and p < 0.001). Symptom relief rates (EC vs C) at 2, 4 and 8 weeks were 73%versus 47% ( p < 0.01), 89%versus 66% ( p < 0.001), and 97%versus 73% ( p < 0.001), respectively. Significant additive effects of ecabet sodium were observed in patients aged 60 years or older, with solitary and medium to large ulcer, and without smoking or drinking habits. No adverse effects were critical. CONCLUSION: Ecabet sodium significantly augmented gastric ulcer healing and symptom relief by cimetidine, especially in the elderly. 相似文献
58.
Value of thyroid specific peroxidase and Ki‐67 stains in preoperative cytology for thyroid follicular tumors 下载免费PDF全文
59.
Tadao Akizawa Tetsuro Otsuka Michael Reusch Mai Ueno 《Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy》2020,24(2):115-125
Roxadustat is an oral hypoxia‐inducible factor prolyl hydroxylase inhibitor developed to treat anemia in chronic kidney disease (CKD) patients. This Phase 3, randomized, open‐label, 24‐week study investigated the efficacy and safety of roxadustat in Japanese CKD patients with anemia on peritoneal dialysis (PD) who were previously treated or not treated with erythropoiesis stimulating agents (ESAs). Patients not previously receiving ESA (ESA‐Naïve group) were randomized to roxadustat at a starting dose of 50 or 70 mg three times weekly; patients previously receiving ESA (ESA‐Converted group) switched from ESA to roxadustat 70 or 100 mg three times weekly depending on the prior ESA dose. Outcomes included maintenance rate of average hemoglobin (Hb) level within 10–12 g/dL at weeks 18–24, cumulative response rate at end of treatment (Hb thresholds, 10.0 g/dL or 10.5 g/dL; Hb increase, ≥1.0 g/dL), and average Hb levels at weeks 18–24. Safety was assessed by occurrence of treatment‐emergent adverse events (TEAEs). Fifty‐six patients were enrolled (ESA‐Naïve, n = 13; ESA‐Converted, n = 43). Maintenance rates (weeks 18–24) were 92.3% (95% CI: 64.0–99.8; ESA‐Naïve) and 74.4% (95% CI: 58.8–86.5; ESA‐Converted). Cumulative response rate was 100.0% in the ESA‐Naïve group. Average Hb levels (weeks 18–24) were 11.05 g/dL (95% CI: 10.67–11.42; ESA‐Naïve) and 10.93 g/dL (95% CI: 10.73–11.13; ESA‐Converted). Common TEAEs included nasopharyngitis and back pain. Roxadustat was well tolerated and effective in maintaining target Hb levels in CKD patients on PD who were previously treated or not treated with ESA. 相似文献
60.
Wang Jieying Tetsuo Kondo Tetsu Yamane Tadao Nakazawa Naoki Oishi Tomonori Kawasaki Kunio Mochizuki Niu Dongfeng Ryohei Katoh 《ACTA HISTOCHEMICA ET CYTOCHEMICA》2014,47(6):289-294
Emerin is a LEM domain-containing integral membrane protein of the vertebrate nuclear envelope. Recently it has been reported that emerin regulates tissue-specific gene/protein expression. We studied the relationship between emerin expression and follicle function in normal and hyperplastic human thyroid tissues using immunohistochemistry and statistical methods. Emerin immunoreactivity was heterogeneous among follicular cells and follicles in normal thyroid tissue. It tended to be strong in the nuclei of tall follicular cells of small follicles and weak or negative in the nuclei of flat follicular cells of large follicles. Follicles with strong expression of emerin were also strongly positive for thyroglobulin (Tg) and thyroxine (T4) in follicular cells and colloid substance, suggesting active functioning follicles. In contrast, large follicles with weak expression of emerin were also weak or negative for Tg and T4. Emerin immunoreactivity was strong in almost all nuclei of hyperplastic follicular cells in Graves’ disease tissues. These findings suggest that emerin expression may be related with follicular function and may contribute to the understanding of hormonogenesis in normal thyroid follicles. 相似文献