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61.
Tsukasa Saida Yumiko Oishi Tanaka Koji Matsumoto Toyomi Satoh Hiroyuki Yoshikawa Manabu Minami 《Japanese journal of radiology》2016,34(2):117-124
Ovarian cancer is the seventh most common cancer diagnosis among women worldwide. The International Federation of Gynecology and Obstetrics recently significantly revised staging criteria for cancer of the ovary. The latest revision was based on the concept that high-grade serous tubal intraepithelial carcinoma (STIC) may be the origin of some high-grade serous carcinomas of the ovary and peritoneum. Therefore, staging criteria for the ovary, fallopian tube, and peritoneum have been unified. Understanding this background and other important revised points are essential for radiologists concerned with imaging diagnosis in gynecologic oncology. Through this review, we introduce the STIC theory and show examples of diseases in accordance with the new staging criteria based on magnetic resonance imaging (MRI) and computed tomography (CT) results. 相似文献
62.
Tokuda Yoshiyuki Fujimoto Kazuro Narita Yuji Mutsuga Masato Terazawa Sachie Ito Hideki Matsumura Yasumoto Uchida Wataru Munakata Hisaaki Ashida Shinichi Ono Tsukasa Nishi Toshihiko Yano Daisuke Ishida Shinichi Kuwabara Fumiaki Akita Toshiaki Usui Akihiko 《Surgery today》2020,50(2):106-113
Surgery Today - Postoperative spinal cord injury is a devastating complication after aortic arch replacement. The purpose of this study was to determine the predictors of this complication. A group... 相似文献
63.
The hypothesis that heat stress reduces the ocular blood flow response to exhaustive exercise was tested by measuring ocular blood flow, blood pressure, and end- tidal carbon dioxide partial pressure (PETCO2) in 12 healthy males while they performed cycle ergometer exercise at 75% of the maximal heart rate at ambient temperatures of 20°C (control condition) and 35°C (heat condition), until exhaustion. The blood flows in the retinal and choroidal vasculature (RCV), the superior temporal retinal arteriole (STRA) and the superior nasal retinal arteriole (SNRA) were recorded at rest and at 6 and 16 min after the start of exercise period and at exhaustion [after 16 ± 2 min (mean ± SE) and 24 ± 3 min of exercise in the heat and control condition, respectively]. The mean arterial pressure at exhaustion was significantly lower in the heat condition than in the control condition at both 16 min and exhaustion. The degree of PETCO2 reduction did not differ significantly between the two thermal conditions at either 16 min or exhaustion. The blood flow velocity in the RCV significantly increased from the resting baseline value at 6 min in both thermal conditions (32 ± 6% and 25 ± 5% at 20°C and 35°C, respectively). However, at 16 min the increase in RCV blood flow velocity had returned to the resting baseline level only in the heat condition. At exhaustion, the blood flows in the STRA and SNRA had decreased significantly from the resting baseline value in the heat condition (STRA: -19 ± 5% and SNRA: -30 ± 6%), and SNRA blood flow was lower than that in the control condition (-14 ± 6% vs -30 ± 6% at 20°C and 35°C, respectively), despite the finding that both thermal conditions induced the same reductions in PETCO2 and vascular conductance. These findings suggested that the heat condition decreases or suppresses ocular blood flow via attenuation of pressor response during exhaustive exercise.
Key Points
- The ocular (retinal and choroidal) blood flow response to exhaustive exercise with heat stress is unknown.
- We hypothesized that the heat stress decreases ocular blood flow response to exhaustive exercise, since cerebral flow, which is regulated similarly to ocular flow, was reported to decrease during heat stress.
- To test this hypothesis, ocular blood flow was measured during exhaustive exercise at 20°C (control condition) and 35°C (heat condition).
- At exhaustion in the heat condition, the ocular flow response was suppressed or decreased with an attenuated pressor response.
- It is suggested that the heat condition decreases or suppresses the ocular blood flow to exhaustive exercise via attenuation of pressor response.
64.
Md. Zahorul Islam Kaori Miyagi Tsukasa Matsumoto Ha Thi Thanh Nguyen Emi Yamazaki-Himeno Mitsuya Shiraishi Atsushi Miyamoto 《Naunyn-Schmiedeberg's archives of pharmacology》2014,387(7):697-702
Our previous in vitro study demonstrated that bradykinin (BK) induced relaxation and contraction of porcine basilar artery (PBA) mediated via activation of endothelial B2 receptors. The main relaxing and contracting factors appeared to be nitric oxide (NO) and prostaglandin (PG) H2, respectively, but not thromboxane A2. After obtaining these findings, we succeeded in cultivating endothelial cells isolated from the PBA. Although PGH2 has different functionally active isoforms, including PGD2, PGE2, and PGF2α, we have not yet clarified which of them is responsible for BK-induced contraction. Therefore, we attempted to quantify NO and PG production from cultured porcine basilar arterial endothelial cells (PBAECs) and to identify which of the PGs was involved in this contraction. The cultured PBAECs produced NO spontaneously, and BK enhanced this production in a concentration-dependent manner. The NO synthase inhibitor Nω-nitro-l-arginine (L-NNA) and the B2 receptor antagonist HOE-140, but not the B1 receptor antagonist des-Arg9, [Leu8]-BK, completely abolished it. In a functional study, PGD2, PGE2, and PGF2α induced concentration-dependent contractions in isolated porcine basilar arterial rings, the order of maximum contraction being PGF2α?>?PGE2?>?PGD2. The cultured PBAECs produced PGD2, PGE2, and PGF2α spontaneously, and BK significantly enhanced the production of PGF2α, but not that of PGD2 and PGE2. The B2, but not B1, antagonist completely abolished the BK-enhanced production of PGF2α. These results suggest that BK induces production of NO and PGF2α simultaneously from PBAECs via B2 receptor activation. 相似文献
65.
Takatoshi Shigeta Kaoru Okishige Hideshi Aoyagi Takuro Nishimura Rena A. Nakamura Naruhiko Ito Yusuke Tsuchiya Mitsutoshi Asano Tsukasa Shimura Hidetoshi Suzuki Manabu Kurabayashi Yuichi Fukami Shinya Sakita Takehiko Keida Tetsuo Sasano Kenzo Hirao Yasuteru Yamauchi 《Pacing and clinical electrophysiology : PACE》2019,42(2):230-237
66.
Sadayoshi Komori Soichi Sano Bing Hong Li Kuniyoshi Matsumura Akitaka Naitoh Sunao Mochizuki Tsukasa Ishihara Akinori Watanabe Ken Umetani Hiroshi Ijiri Keitaro Hashimoto Kohji Tamura 《Heart and vessels》1995,10(1):7-11
Summary We investigated the antiarrhythmic effects of bidisomide (SC-40230), a new class I antiarrhythmic drug, in early-phase ventricular arrhythmias induced by coronary artery occlusion and reperfusion in anesthetized rats. The effects of bidisomide were compared with those of mexiletine (MXT) and disopyramide (DSP), established class I antiarrhythmic drugs. Drugs were administered intravenously, 5 min before induction of coronary occlusion. Bidisomide (5 mg/kg) reduced the number of premature ventricular complexes and the incidence of ventricular tachycardia and ventricular fibrillation similarly to MXT and DSP in rats with ventricular arrhythmias induced by coronary artery occlusion. In rats with ventricular arrhythmias induced by coronary artery reperfusion following a 5min coronary occlusion, the antiarrhythmic effects of 5 mg/kg of bidisomide were similar to those of the same doses of MXT and DSP. All three drugs significantly slowed the heart rate. Our results suggest that bidisomide may effectively reduce the severity of lifethreatening ventricular arrhythmias that occur during acute coronary syndrome. 相似文献
67.
Dr. Jin-ichi Hida M.D. Masayuki Yasutomi M.D. Takamasa Maruyama M.D. Akihiro Nakajima M.D. Toshihiro Uchida M.D. Tsukasa Wakano M.D. Tadao Tokoro M.D. Kiyoshige Fujimoto M.D. 《Diseases of the colon and rectum》1998,41(2):165-168
PURPOSE: We examined the survival benefit of pelvic exenteration for locally advanced colorectal cancer with lymph node metastases, because this issue remains controversial. METHODS: Medical records of 50 patients who underwent curative pelvic exenteration for colorectal cancer were reviewed retrospectively. Nodal metastases were examined by the clearing method in 29 patients and by the conventional manual method in 21 patients. RESULTS: Invasion to contiguous pelvic organs was present in 40 patients (80 percent) and absent in 10 patients (20 percent). Node metastases were present in 33 patients (66 percent). Operative morbidity and mortality rates were 22 percent (11 patients) and 6 percent (3 patients), respectively. Respective five-year survival rates were 60 and 80 percent in the groups with and without organ invasion (no significant difference). Five-year survival rates in patients with nodal metastases was 54.6 percent but was significantly higher, 82.4 percent, in patients without nodal metastases. Five-year survival in 28 patients with both organ invasion and nodal metastases was 53.6 percent. CONCLUSIONS: Long-term survival was afforded by pelvic exenteration for locally advanced colorectal cancer with nodal metastases. 相似文献
68.
Joweria Nambooze Miho Fujimura Tsukasa Inaoka 《Environmental health and preventive medicine》2014,19(2):143-150
Objectives
The aim of this study was to assess the nutritional status and functional capacity of 144 community-dwelling elderly in three rural ethnic groups, namely, the Oy, the Brau and the Lao, of southern Laos.Methods
The Mini nutritional assessment (MNA) questionnaire and Determine Your Nutritional Health checklist were used to assess nutritional status. The Barthel Activities of Daily Living questionnaire and Lawton and Brody’s Instrumental Activities of Daily Living questionnaire were used to assess the functional capacity of the respondents.Results
The MNA score results indicated that 92.5 % of Oy respondents, 85.4 % of Brau respondents and 60 % of Lao respondents were malnourished. Analysis of variance tests showed that the MNA scores of the Oy and Lao ethnic groups and of the Brau and Lao ethnic groups were significantly different ( both p < 0.01), but that there was no significant difference between the MNA scores of the Oy and Brau ethnic groups (p > 0.05). In terms of functional capacity, 47.2 % of Oy respondents, 43.9 % of Brau respondents and 20 % of Lao respondents had limitations in their activities of daily living, whereas 98.1 % of Oy respondents, 97.6 % of Brau respondents and 86 % of Lao respondents had limitations in their instrumental activities of daily living. Body mass index, reduced appetite, number of meals consumed daily and presence of common diseases predicted nutritional status in all three ethnic groups; the remaining factors differed by ethnicity. This result implies that ethnic differences and other factors, such as location of the village, services, resources within the village and respondents’ lifestyles, can affect nutritional status.Conclusions
Because predictors of nutritional status varied by ethnicity, there is a need for area-specific interventions aimed at improving the quality of life of the elderly in these areas. 相似文献69.
70.
Kousuke Fukazawa Kenji Furuta Kyoichi Adachi Yoshiya Moritou Tsukasa Saito Ryusaku Kusunoki Goichi Uno Shino Shimura Masahito Aimi Shunji Ohara Shunji Ishihara Yoshikazu Kinoshita 《Journal of gastroenterology》2014,49(9):1307-1313