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1.
neurogenetics - Mediator (MED) is a key regulator of protein-coding gene expression, and mutations in MED subunits are associated with a broad spectrum of diseases. Because mutations in MED17... 相似文献
2.
Masaaki Saito Kunihiko Ohnishi Hidetaka Terabayashi Hideo Tanaka Shinji Iida Fumio Nomura 《The American journal of gastroenterology》1987,82(10):1057-1061
Intrahepatic pressure was measured in 148 patients with liver disease (32 outpatients, 116 inpatients) and 13 controls with almost normal liver histology (inpatients), with a 23-gauge needle (inner diameter 0.38 mm). Intrahepatic pressure was significantly elevated in the group order of chronic active hepatitis without bridging necrosis (n = 17, 9.2 +/- 3.0 mm Hg), chronic active hepatitis with bridging necrosis (n = 24, 12.3 +/- 5.7), and posthepatitic liver cirrhosis (n = 65, 18.8 +/- 4.2), compared with controls (n = 13, 6.8 +/- 2.7), whereas it was not elevated in the group of idiopathic portal hypertension (n = 9, 7.8 +/- 2.5 mm Hg), acute hepatitis (n = 10, 8.4 +/- 2.6 mm Hg), and chronic persistent hepatitis (n = 23, 7.9 +/- 2.7 mm Hg), compared with controls. As complications, four patients had abdominal discomfort continuing for more than a day; however, patients were allowed to walk after they had rested on their beds for 30 min. In 37 patients (27 with cirrhosis, seven idiopathic portal hypertension, and three others), portal vein and/or hepatic vein catheterization was performed during the same procedure of intrahepatic pressure measurement. Intrahepatic pressure showed significant correlations with corrected wedged hepatic vein pressure (r = 0.91), portohepatic gradient (r = 0.69), wedged hepatic vein pressure (r = 0.79), and portal vein pressure (r = 0.68). Slopes were 0.97, 0.83, 0.66, and 0.65, respectively. In conclusion, intrahepatic pressure reflects hepatic sinusoidal pressure (corrected wedged hepatic vein pressure), and intrahepatic pressure starts to elevate at the stage of chronic active hepatitis. 相似文献
3.
Clinical and Portal Hemodynamic Features in Cirrhotic Patients Having a Large Spontaneous Splenorenal and/or Gastrorenal Shunt 总被引:1,自引:0,他引:1
Kunihiko Ohnishi Shinichi Sato Masayuki Saito Hidetaka Terabayashi Takatsune Nakayama Masaaki Saito Nobuyoshi Chin Shinji Iida Fumio Nomura Kunio Okuda 《The American journal of gastroenterology》1986,81(6):450-455
Clinical and portal hemodynamic features in 28 cirrhotic subjects with a large spontaneous spleno- and/or gastrorenal shunt were studied in comparison with 30 control cirrhotic cases without such collaterals. Forty-six percent of the former had chronic hepatic encephalopathy, but none of the latter was encephalopathic. These patients with large renal shunts were divided into those with and those without encephalopathy. Large esophageal varices were significantly less common in patients with a large shunt and encephalopathy compared with those who had a large shunt but no encephalopathy, and the control. But there was no significant difference of past variceal bleeding among these three groups. In all those with encephalopathy, part of superior mesenteric venous blood was shunting through these collaterals into the left renal vein or inferior vena cava, but the same was not demonstrable in patients with a large shunt and no encephalopathy and control cirrhotics. In the chronic encephalopathic, portal venous flow was estimated to be less than one-half of that in control cirrhotics, and the portion of superior mesenteric venous blood that was flowing hepatofugally through a large shunt into the left renal vein seemed about the same or greater than the portal venous flow. Thus, a large spontaneous spleno- and/or gastrorenal shunt might prevent development of large esophageal varices but not variceal hemorrhage and it increased a risk of chronic hepatic encephalopathy. 相似文献
4.
Hiroshi Kinashi Yasuhiko Ito Masashi Mizuno Yasuhiro Suzuki Takeshi Terabayashi Fumiko Nagura Ryohei Hattori Yoshihisa Matsukawa Tomohiro Mizuno Yukihiro Noda Hayato Nishimura Ryosuke Nishio Shoichi Maruyama Enyu Imai Seiichi Matsuo Yoshifumi Takei 《Journal of the American Society of Nephrology : JASN》2013,24(10):1627-1642
Peritoneal fibrosis (PF) causes ultrafiltration failure (UFF) and is a complicating factor in long-term peritoneal dialysis. Lymphatic reabsorption also may contribute to UFF, but little is known about lymphangiogenesis in patients with UFF and peritonitis. We studied the role of the lymphangiogenesis mediator vascular endothelial growth factor-C (VEGF-C) in human dialysate effluents, peritoneal tissues, and peritoneal mesothelial cells (HPMCs). Dialysate VEGF-C concentration correlated positively with the dialysate-to-plasma ratio of creatinine (D/P Cr) and the dialysate TGF-β1 concentration. Peritoneal tissue from patients with UFF expressed higher levels of VEGF-C, lymphatic endothelial hyaluronan receptor-1 (LYVE-1), and podoplanin mRNA and contained more lymphatic vessels than tissue from patients without UFF. Furthermore, mesothelial cell and macrophage expression of VEGF-C increased in the peritoneal membranes of patients with UFF and peritonitis. In cultured mesothelial cells, TGF-β1 upregulated the expression of VEGF-C mRNA and protein, and this upregulation was suppressed by a TGF-β type I receptor (TGFβR-I) inhibitor. TGF-β1–induced upregulation of VEGF-C mRNA expression in cultured HPMCs correlated with the D/P Cr of the patient from whom the HPMCs were derived (P<0.001). Moreover, treatment with a TGFβR-I inhibitor suppressed the enhanced lymphangiogenesis and VEGF-C expression associated with fibrosis in a rat model of PF. These results suggest that lymphangiogenesis associates with fibrosis through the TGF-β–VEGF-C pathway.The decrease in ultrafiltration capacity that is associated with the high peritoneal solute transport that is observed after prolonged peritoneal dialysis (PD) treatment is a major reason for its discontinuation.1–4 Several studies have shown that a higher peritoneal solute transport rate is associated with reduced survival of PD patients.1,2,5 The characteristic features of chronic peritoneal damage in PD treatment are associated with submesothelial fibrosis and neoangiogenesis.6,7 Analyses of the surface peritoneum showed no significant changes in vessel density with duration of PD.6,8 In addition, the vessel density in patients with ultrafiltration failure (UFF) was significantly higher than the vessel density in normal individuals or non-PD patients, but it was not higher than the vessel density in patients undergoing PD.6 These findings suggest that factors other than increased vascular density may be involved in disease states associated with increased transport of peritoneal membranes. In addition, the relationship between peritoneal fibrosis and UFF remains obscure.Blood capillaries have a continuous basal lamina with tight interendothelial junctions and are supported by pericytes and smooth muscle cells. In contrast, lymphatic capillaries are thin-walled with a wide lumen and do not contain pericytes or basement membrane. The structures of lymphatic vessels are suitable for the removal of tissue fluid, cells, and macromolecules from the interstitium.9–11 If lymphangiogenesis develops in the peritoneal membrane, absorption of the PD fluid could be increased and lead to UFF. An increase in the number of lymphatic vessels has recently been reported in several disease conditions, including tumor metastasis,12–15 chronic respiratory inflammatory diseases,16–18 wound healing,19 and renal transplant rejection.20,21 We recently reported that lymphangiogenesis had developed in tubulointerstitial fibrosis of human renal biopsy specimens,22 and we also reported the mechanisms of lymphangiogenesis in rat unilateral ureteral obstruction models.23The lymphatic absorption rate, which is measured by the rate at which intraperitoneally administered radioactive serum albumin or macromolecule dextran 70 disappears, is significantly higher in patients with UFF, and lymphatic reabsorption is considered to be one of the causes of UFF.24–27 However, the results from these clinical approaches have been controversial.28,29 In addition, little is known about the pathology and the process of lymphangiogenesis in patients with UFF and peritonitis.In this study, we investigated lymphangiogenesis and the expression of vascular endothelial growth factor-C (VEGF-C), which is a potentially important mediator of lymphangiogenesis, in human peritoneal tissues, PD effluent, and peritoneal mesothelial cells. We also explored VEGF-C induction by TGF-β1 in the human mesothelial cell line (Met-5A) and cultured human peritoneal mesothelial cells (HPMCs) from the spent PD effluent of patients with varying rates of peritoneal transport. Finally, we explored the relationship between peritoneal fibrosis and lymphangiogenesis in rats that were administered chlorhexidine gluconate (CG) into the abdominal cavity, which provides a model of chemically induced peritoneal inflammation/fibrosis.30–32 This work is the first report to show that lymphangiogenesis is linked to the peritoneal fibrosis that is often associated with a high peritoneal transport rate. 相似文献
5.
Yuichi Nakamura Kaori Yomura Toshihiro Kammoto Makoto Ishimatsu Yuichi Kikuchi Kazuaki Niitsu Susumu Terabayashi Shuichi Takeda Hiroshi Sasaki Keiko Arimoto Minoru Okada Setsuko Sekita Motoyoshi Satake Yukihiro Goda 《Journal of natural medicines》2006,60(4):285-294
Aconite root has high toxicity caused by diester alkaloids, thus it was necessary to define the limiting value of diester
alkaloids used in medicine formulation. To give the quality of “Processed Aconite Root” and “Powdered Processed Aconite Root”
in the Japanese Pharmacopoeia (14th edn, supplement II), we established the official specification and evaluation methods
of standard substances. High qualitative grade diester alkaloids, aconitine, hypaconitine, jesaconitine and mesaconitine,
which were useful to evaluate the purity of processed aconite root and powdered processed aconite root, were prepared and
evaluated for their stability. We studied the physicochemical specification and evaluation methods of these alkaloids. In
addition, an “Aconitum diester alkaloids standard solution for purity”, which was used for the purity test, was prepared,
and we also studied its physicochemical specification and evaluation methods. In addition, to evaluate the quality of processed
aconite root and powdered processed aconite root, a TLC identification test was established. A monoester alkaloid of benzoylmesaconine
hydrochloride was used as the reference standard in the latter test, and we also investigated its physicochemical specification
and evaluation methods. 相似文献
6.
H Mori T Terabayashi T Kitazawa Y Sugiyama Y Tsukada 《No shinkei geka. Neurological surgery》1987,15(4):427-432
We report a rare case of traumatic spinal subarachnoid hematoma with Brown-Séquard syndrome following hyperextension injury. A 43-year-old man was admitted to our hospital four days after hyperextension cervical injury complaining of nuchal pain, left hemiparesis and dysesthesia of the left arm. On the third hospital day, neurological examination revealed left C2,3 level Brown-Séquard syndrome. High cervical plain CT scan showed a high density area in the left spinal canal from C1 vertebral body level to C2-3 intervertebral level. Emergency operation was performed and a left-sided subarachnoid hematoma was removed. The left C2 and C3 nerve roots were markedly stretched and the cord was shifted to the right. Neither vascular abnormality nor tumor was found and no traumatic change was seen on the cord. The Brown-Séquard syndrome disappeared soon after surgery, but the weakness of the left arm and anesthesia at the level of left C2 dermatome remained until six months after operation. Review of the literature revealed no such a case as the one in which the patient developed a spinal subarachnoid hematoma following hyperextension injury without any preexisting disease or injury of the spine. Brown-Séquard syndrome caused by spinal subarachnoid hematoma was not found on the literature either. So we believe that this is the first report of case of such lesion. The mechanism of subarachnoid clot formation on hyperextension injury may be due to transient dislocation of the spine with tearing of the anterior longitudinal ligament or to crushing of the cord between the ligamentum flavum, which bulged forward on hyperextension, and the posterior aspect of the vertebral body.(ABSTRACT TRUNCATED AT 250 WORDS) 相似文献
7.
The Generation of Cytotoxic T Lymphocytes Against Acetaldehyde-modified Syngeneic Cell 总被引:1,自引:0,他引:1
Hidetaka Terabayashi Michael A. Kolber 《Alcoholism, clinical and experimental research》1990,14(6):893-899
The major metabolic product of ethanol is acetaldehyde. It is highly reactive with proteins. In situ this modification is significant enough to generate an antibody response. Whether an effector cellular immune response can be generated against these acetaldehyde modified adducts on syngeneic cells is not known. In this paper we have demonstrated in the murine system that acetaldehyde modified splenic cells can generate cytotoxic T lymphocytes (CTL). These CTL are specific for the acetaldehyde modified syngeneic cells, and not acetaldehyde modified allogeneic cells. The ability of the CTL to lyse-specific targets is dependent on the formation of stable acetaldehyde adducts. Cold target inhibition studies reveal that modified syngeneic cells can inhibit lysis as effectively as unmodified cells. Therefore, the present study lends support to the hypothesis that acetaldehyde modified cells can generate a cellular immune response and may do so in pathologic states. 相似文献
8.
Tomoko Akase Tsutomu Shimada Susumu Terabayashi Yukinobu Ikeya Hiromi Sanada Masaki Aburada 《Journal of natural medicines》2011,65(1):73-80
Kaempferia parviflora Wall. Ex Baker (KP) has been used as a folk medicine in Laos and Thailand to lower blood glucose levels, improve blood flow,
and increase vitality. This study investigated the preventive effects of KP on obesity and its downstream symptoms (various
metabolic disorders) using Tsumura, Suzuki, Obese Diabetes (TSOD) mice, a multifactorial genetic disease animal model in which
metabolic diseases develop spontaneously, similar to metabolic syndrome in humans, and Tsumura, Suzuki, Non-Obesity (TSNO)
mice as the corresponding control mice. When feed that was mixed with KP (1 or 3%) was given ad libitum to TSOD and TSNO mice
for 8 weeks, body weight increase, visceral fat accumulation, lipid metabolism abnormalities, hyperinsulinemia, glucose intolerance,
insulin resistance, hypertension, and peripheral neuropathy were suppressed in TSOD mice, but no marked differences were observed
in TSNO mice. Because KP had preventive effects on metabolic diseases, including antiobesity effects, only in obese animals,
we propose that KP will be extremely valuable as a medicine or component of food in alternative health care. 相似文献
9.
Quantitative Sonographic Assessment of the Quadriceps Femoris Muscle in Healthy Japanese Adults
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