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排序方式: 共有3248条查询结果,搜索用时 31 毫秒
31.
Atsushi Fukui Megumi Yokota Ayano Funamizu Rika Nakamua Rie Fukuhara Kenichi Yamada Hidetaka Kimura Asami Fukuyama Mai Kamoi Kanji Tanaka Hideki Mizunuma 《American journal of reproductive immunology (New York, N.Y. : 1989)》2012,67(4):278-286
The regulation of uterine and circulating peripheral blood natural killer (NK) cells has been associated with reproductive immunology such as recurrent pregnancy losses, implantation failures, or preeclampsia. Preeclampsia is a hypertensive disorder of pregnancy characterized by increased blood pressure accompanied by proteinuria and is a major cause of maternal and fetal mortality. Natural cytotoxicity receptors (NCRs) are unique markers, which regulate NK cell cytotoxicity and cytokine production. The relation of NCRs to reproduction is not fully characterized yet. The different profile of NCRs expression may suggest presence of abnormal regulation of NK cell in women with reproductive failures. Pregnant women with preeclampsia carry immunological abnormalities of NCRs on peripheral blood NK cells during pregnancy. The lower expression of NKp46+ NK cells in women with preeclampsia may account for the higher production of NK1 cytokine that is known as NK1 shift in pregnant women with preeclampsia. Evaluation of NKp46 on peripheral blood NK cells may be applicable to find the onset of preeclampsia. In this review, various expressions of NK cell surface markers including NCRs on NK cells, NK cell cytotoxicity, and production of cytokines and angiogenic factors by NK cells were reviewed in relation to preeclampsia. 相似文献
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Yutaka Hatani Hidekazu Tanaka Akane Kajiura Daisuke Tsuda Yoichiro Matsuoka Hiroyuki Kawamori Fumitaka Soga Kensuke Matsumoto Takeshi Inoue Yutaka Okita Ken-ichi Hirata 《The Canadian journal of cardiology》2018,34(8):1088.e11-1088.e13
An 86-year-old man was admitted our hospital because of sudden onset of dyspnea after blunt chest trauma. Because his oxygen saturation deteriorated from 92% in the supine position to 86% in the sitting position, platypnea-orthodeoxia syndrome was suspected. Transesophageal echocardiography showed severe tricuspid regurgitation (TR) caused by anterior papillary muscle rupture. Furthermore, right-to-left shunt with TR through a patent foramen ovale (PFO) was observed. The diagnosis was therefore platypnea-orthodeoxia syndrome with right-to-left shunt through PFO with shunting exacerbated by acute severe TR after blunt chest trauma. The patient underwent urgent tricuspid valve repair and PFO closure and has remained asymptomatic postoperatively. 相似文献
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Yozo Sato Yoshitaka Inaba Hidekazu Yamaura Haruyuki Takaki Yasuaki Arai 《Journal of vascular and interventional radiology : JVIR》2012,23(10):1377-1380
A 65-year-old woman with liver metastases from colon cancer and tumor thrombus extending from the right hepatic vein (HV) to the right atrium (RA) presented with marked lower-extremity edema and massive ascites. Computed tomography showed tumor thrombus completely occluding the inferior vena cava (IVC) and HV ostia. Recanalization of the IVC and HVs was performed. Metallic stents were placed in tandem from the superior vena cava to the IVC through the RA, and additional metallic stents were placed in the left HV. The patient's symptoms were relieved, and there was no recurrence of these symptoms for 19.5 months until death. 相似文献
37.
Manabu Hayama Hidekazu Suzuki Takayuki Shiroyama Motohiro Tamiya Norio Okamoto Ayako Tanaka Naoko Morishita Takuji Nishida Takashi Nishihara Tomonori Hirashima 《Journal of thoracic disease》2016,8(1):116-123
Background
Long-term oxygen therapy (LTOT) is sometimes prescribed for patients with advanced lung cancer who are potential candidates for chemotherapy. The aim of this study was to assess the usefulness of chemotherapy for patients with this disease who require LTOT.Methods
The medical records of 40 patients with advanced lung cancer who received LTOT while undergoing systemic chemotherapy at our institution between January 2009 and December 2014 were retrospectively reviewed. Chemotherapy consisted of cytotoxic or molecular-targeted agents.Results
Twenty-four patients had adenocarcinoma, 6 had squamous cell carcinoma, and 10 had small cell lung cancer (SCLC). The median survival time from the date of the first chemotherapy cycle performed in conjunction with LTOT was 194 days. In a multivariate analysis, the only factor significantly associated with better prognosis was the line (first or second) of the first chemotherapy with LTOT (hazard ratio =0.42; 95% confidence interval, 0.18 to 0.94). Among the 40 patients, 10 (25%) received chemotherapy during the last 30 days of their lives, 2 of whom died of chemotherapy-related adverse events.Conclusions
Chemotherapy for patients with advanced lung cancer who receive LTOT may be acceptable if it is the first- or second-line treatment. However, we should be mindful of the potential overuse of chemotherapy and its negative impact on quality of life. 相似文献38.
Teiichi Yamane Taro Date Yasuko Kanzaki Keiichi Inada Seiichiro Matsuo Kenri Shibayama Satoru Miyanaga Hidekazu Miyazaki Ken-ichi Sugimoto Seibu Mochizuki 《Circulation journal》2007,71(5):753-760
BACKGROUND: The limited efficacy and complications of segmental ostial pulmonary vein isolation (PVI) for treating atrial fibrillation (AF) have been discussed so, in the present study the feasibility and efficiency of performing segmental pulmonary vein (PV) antrum isolation to treat AF were assessed. METHODS AND RESULTS: A total of 187 patients with drug-refractory AF (paroxysmal 120, persistent 67) underwent segmental PVI guided by circumferential 20-electrode catheters (Lasso). Radiofrequency (RF) current was delivered either at the ostium using a regular Lasso (15-20 mm in diameter, 70 patients: Group 1) or at the antrum using a larger Lasso (25-30 mm in diameter, 117 patients: Group 2). A significantly wider region had to be ablated, with a longer RF application time, to isolate all 4 PVs in Group 2 patients than in Group 1 patients. Although the rate of recurrence of AF after the initial session was equal in both groups, a significantly greater number of patients were free from AF after a mean of 1.4 procedures in Group 2 than in Group 1 (93% vs 76% for paroxysmal AF, 78% vs 48% for persistent AF). CONCLUSIONS: Segmental antral PVI using large-sized Lasso catheters was found to be more effective and safer than ostial PVI for the treatment of AF. 相似文献
39.
Insulin alters cardiac muscle creatine kinase activity 总被引:1,自引:0,他引:1
The expression of mRNAs of creatine kinase (CK)-B and CK-M has been show to be affected by insulin, and myocardial CK-MB
activity is suppressed in insulin-deficient rats. We investigated the dose-related effect of insulin on CK-MB activity in
cardiac and skeletal muscles. Male Wistar rats were divided into three groups: (1) control group, (2) diabetic group, injected
with 65 mg/kg streptozotocin for 4 weeks, and (3) atenolol group, administered 30 mg/kg per day atenolol. Each group was further
divided into three subgroups and administered either saline, or 20 (Ins 20) or 30 (Ins 30) U/kg per day insulin. After 3 weeks,
the isoenzyme activity of CK and lactate dehydrogenase (LDH) in the left ventricle of the heart (LV) and the major pectoral
muscle (PM) was measured. Serum insulin increased and plasma glucose decreased in Ins 20 and Ins 30, dose-dependently, in
all three groups. Both CK-MB and -BB activity in LV increased dose-dependently with insulin treatment in the control, diabetes,
and atenolol groups, although these changes did not occur in skeletal muscles. CK-MB in LV correlated with the serum insulin
levels in all rats, while no correlation was found in the skeletal muscles. These findings suggest that insulin possibly regulates
the distribution of CK isoenzymes in rat heart muscle, and that the effect of insulin is not due to the sympathetic drive
induced by hypoglycemia.
Received: November 8, 1999 / Accepted: February 12, 2000 相似文献
40.
Noboru Fujino Masami Shimizu Hidekazu Ino Masato Yamaguchi Toshihiko Yasuda Mitsuru Nagata Tetsuo Konno Hiroshi Mabuchi 《The American journal of cardiology》2002,89(1):29-33
Familial hypertrophic cardiomyopathy (HC) can be caused by mutations in 9 different genes encoding sarcomere proteins expressed in cardiac muscle. To date, only 13 different mutations in the cardiac troponin T (cTnT) gene have been reported to cause HC. Clinical characteristics and prognosis associated with mutations of this gene have not been well characterized owing to the small size and composition of affected families. The aim of this study was to determine the characteristic phenotype of patients with HC caused by a novel cTnT gene mutation, Lys273Glu. Two hundred Japanese probands with HC were screened for mutations in the cTnT gene. The Lys273Glu missense mutation was present in 9 persons from 2 unrelated pedigrees. They exhibited different cardiac morphologies: 1 had a dilated cardiomyopathy-like feature, 7 had left ventricular hypertrophy with normal left ventricular systolic function, and the 6 of them had asymmetric septal hypertrophy. A 1-year-old boy was not evaluated with echocardiography. The mean maximum wall thickness was 18.0 +/- 5.5 mm (range 8 to 24). There were 7 histories of sudden death in 1 of the 2 families. The Lys273Glu substitution in the cTnT gene shows a high degree of penetrance (100% in persons aged >20 years), a high incidence of sudden death, and a partial transition from hypertrophic to dilated cardiomyopathy. Because the location of a mutation appears to influence the development of a phenotype, we suggest that the precise definition of the disease-causing mutation can provide important prognostic information about affected members. 相似文献