Diode laser coagulation for the treatment of epistaxis in a Scottish fold cat     

Takuma Aoki  Hiroo Madarame  Keisuke Sugimoto  Hiroshi Sunahara  Yoko Fujii  Eiichi Kanai  Tetsuro Ito 《The Canadian veterinary journal. La revue veterinaire canadienne》2015,56(7):745-748

We report the case of a 4-year-old, castrated 4.2-kg Scottish fold cat with recurrent epistaxis that was unresponsive to medical therapy. Diathermocoagulation of the nasal mucosa with a diode laser controlled the epistaxis and there was no significant recurrence of epistaxis during 1 year of follow-up.  相似文献   

Synthesis and precocious-metamorphosis-inducing activity of 3-pyridyl ethers     

Eiichi Kuwano  Motohisa Shimizu  Kenshi Shimazu  Satoshi Nakazawa  Koichi Suzuki 《Pest management science》1998,52(3):251-257

A new series of 5-(substituted phenoxy)pentyl 3-pyridyl ethers induced precocious metamorphosis in larvae of the silkworm, Bombyx mori. Both 2- and 4-pyridyl ethers were inactive, indicating that the 3-pyridine moiety was essential for the activity. Octyl, dodecyl and farnesyl 3-pyridyl ethers had no activity. Among the compounds tested so far, 5-(4-propylphenoxy)pentyl 3-pyridyl ether showed the highest activity. The activity fell off with increasing or decreasing length of the carbon chain between two oxygen atoms. Introduction of a methyl group at the 6 position of the pyridine ring completely eliminated the activity. Precocious metamorphosis induced by 3-pyridyl ethers was fully reversible by a simultaneous application of a small amount of tebufenozide, an ecdysteroid agonist, or methoprene, a JH agonist. © 1998 SCI.  相似文献   

Potassium acetate-catalyzed acetylation of wood: reaction rates at low temperatures     

Eiichi Obataya  Kazuya Minato 《Wood Science and Technology》2009,43(5-6):405-413

Spruce wood blocks were acetylated in the presence of potassium acetate (KAc) at 20, 40, 60, 80 and 120°C. At 20°C, the weight percent gain (WPG) due to the KAc-catalyzed acetylation reached 20% in 18 days, whereas that due to pyridine-catalyzed acetylation did not exceed 8%. The hygroscopicity and dimensional stability of the KAc-acetylated wood were the same as those of conventionally acetylated wood at the same WPG, irrespective of reaction temperature. These facts suggest that the KAc enables simplified acetylation of wood at room temperature. The activation energy (E _a) of the KAc-acetylation in the lower temperature range (20–40°C, 121–131 kJ/mol) was comparable to that of the acetylation of wood meal (140–146 kJ/mol). It was speculated that diffusion became a minor factor at reduced reaction rates in the lower temperature range, thus requiring a greater E _a.  相似文献   

Effects of bisphenol A (BPA) on placentation and survival of the neonates in mice     

Tachibana T  Wakimoto Y  Nakamuta N  Phichitraslip T  Wakitani S  Kusakabe K  Hondo E  Kiso Y 《The Journal of reproduction and development》2007,53(3):509-514

The effects of bisphenol A (BPA) on placentation have not been fully determined. The aim of this study was to clarify the structural changes of the placenta, abortion rate, and survival of neonates after BPA administration in mice. BPA (10 mg/kg/day) was administered to pregnant mice (BPA mice) subcutaneously from the first day of pregnancy (Day 0) to Day 7 (8 days total). The number of embryos and weights of whole uteri were measured on Days 10 and 12. Morphological changes in the placentae were examined by light microscopy on the corresponding days of pregnancy. The number of neonates was also counted. Survival rates were periodically calculated for neonates from the first day after parturition (P-Day 0) to P-Day 56. The number of embryos and weight of the uterus on Days 10 and 12 were significantly decreased by BPA injection. No notable differences were recognized between the left and right uteri. The proportion of the labyrinthine zone per whole placenta in the BPA mice became lower than that in the controls, and that of the metrial gland was higher in the BPA mice. The intervillous spaces of the placenta were narrower in the BPA mice. Degenerative changes were found in the trophoblastic giant cells and spongiotrophoblast layers of the BPA mice. The number of BPA mouse neonates was drastically decreased within 3 days after birth, and no mice survived after P-Day 56. The results suggest that BPA not only disrupts placental functions and leads to abortion through chronic stimulation of gene expression by binding to DNA but that it also affects the mortality of neonates through indirect exposure of embryos.  相似文献   

Localization of MT2a Gene promoter expression is different from the site(s) of copper accumulation in the roots of transgenic Arabidopsis thaliana     

Katsuhiko Mineta  Eiichi Akahoshi  Keishiro Takahashi  Tatsuya Horiguchi  Hiroaki Hayashi  Takuji Ohyama 《Soil Science and Plant Nutrition》2013,59(1):189-197

Accumulation of mRNA for MT2a, a metallothionein of Arabidopsis thaliana, is known to be upregulated by excess copper (Cu). We compared the localization of the promoter activity of the MT2a gene and the accumulation site(s) of CU in the roots of transgenic A. thaliana. Open reading frame of the β-glucuronidase (GUS) gene was fused with the MT2a gene promoter and introduced into A. thaliana. Strong GUS activity was observed in the region near or within the stele in the presence of CU at a high concentration (high-CU condition). Electron probe X-ray micro-analysis demonstrated that under high-CU conditions, CU accumulated most abundantly in the cortex, where GUS activity was not significantly induced. These results indicate that the sites showing the MT2a promoter activity and CU accumulation did not coincide with each other, suggesting that CU is not a direct activator of the MT2a promoter.  相似文献   

Absorption and metabolism of xanthophylls   总被引：1，自引：0，他引：1  

Kotake-Nara E  Nagao A 《Marine drugs》2011,9(6):1024-1037

Dietary carotenoids, especially xanthophylls, have attracted significant attention because of their characteristic biological activities, including anti-allergic, anti-cancer, and anti-obese actions. Although no less than forty carotenoids are ingested under usual dietary habits, only six carotenoids and their metabolites have been found in human tissues, suggesting selectivity in the intestinal absorption of carotenoids. Recently, facilitated diffusion in addition to simple diffusion has been reported to mediate the intestinal absorption of carotenoids in mammals. The selective absorption of carotenoids may be caused by uptake to the intestinal epithelia by the facilitated diffusion and an unknown excretion to intestinal lumen. It is well known that β-carotene can be metabolized to vitamin A after intestinal absorption of carotenoids, but little is known about the metabolic transformation of non provitamin A xanthophylls. The enzymatic oxidation of the secondary hydroxyl group leading to keto-carotenoids would occur as a common pathway of xanthophyll metabolism in mammals. This paper reviews the absorption and metabolism of xanthophylls by introducing recent advances in this field.  相似文献   

Hyperbaric air therapy in dogs for clinical veterinary medicine: a basic study     

Yanagisawa H  Kanai E  Kayanuma H  Shida T  Suganuma T 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2011,73(10):1351-1354

Hyperbaric air therapy (HBA) is a treatment in which an animal is exposed to air pressurized to about 1.3 atmosphere absolute (ATA). Although HBA has already been administered to humans in medical applications, it has not been reported in clinical veterinary medicine. Therefore, we aimed to determine a safe protocol for dogs. To elucidate oxygen dynamics during HBA, we measured partial pressure of arterial oxygen, oxygen saturation of tissue, and partial pressure of transcutaneous oxygen in dogs. HBA could be performed safely with a protocol of pressurizing speed up to 0.1 ATA/min, maximum chamber pressure of up to 1.3 ATA, and pressure duration of around 45 min per treatment. Under these conditions, tissue was adequately oxygenated during and after treatment.  相似文献   

Localization of probe-accessible chitin and characterization of genes encoding chitin-binding domains during rice–<Emphasis Type="Italic">Magnaporthe oryzae</Emphasis> interactions     

Susumu Mochizuki  Ken-ichiro Saitoh  Eiichi Minami  Yoko Nishizawa 《Journal of General Plant Pathology》2011,77(3):163-173

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北海道奶牛业可持续土地利用方式--有计划地处理粪尿为焦点     

工藤英一  胡尔查 《内蒙古农业大学学报(自然科学版)》2006,27(1):135-140

北海道奶牛业从20世纪50年代开始快速发展,奶农户数减少的同时经营规模不断扩大。但是奶牛饲养头数增加与土地规模扩大之间没能保持相应的良好平衡关系。所产生的家畜粪尿量加重了环境负担。本文阐明北海道奶牛业经营规模扩大过程与土地利用方式之间持有什么样的相互依存关系来展开,并从土地利用角度进一步研究了奶牛生产粪尿产生与土地利用之间的关系。  相似文献   

Estimation of fault strength: reconstruction of stress before the 1995 Kobe earthquake   总被引：2，自引：0，他引：2  

Yamashita F  Fukuyama E  Omura K 《Science (New York, N.Y.)》2004,306(5694):261-263

We have estimated the stress field before the 1995 Kobe, Japan, earthquake (moment magnitude 6.9) using in situ post-shock stress measurements obtained from hydraulic fracturing experiments near the fault. We reconstructed the pre-shock stress field using a kinematic source model inverted from seismic waveforms and geodetic deformations. We found that at the center of the fault, two sides of the fault surface coupled completely before the earthquake, with a coefficient of friction of 0.6, which is equivalent to strong crust. At the edge of the fault, a possible aseismic slip is expected to occur from the pre-shock stress orientation.  相似文献