Emphysematous cystitis in a chemically-induced diabetic dog     

Matsuo S  Hayashi S  Watanabe T  Adachi K  Miyoshi A  Kato A  Suzuki M 《Journal of toxicologic pathology》2009,22(4):289-292

Emphysematous cystitis is a rare disorder caused by bacterial infection and characterized by gas accumulation within the bladder wall with cyst formation. This report describes the histopathological characteristics of emphysematous cystitis found in a diabetic female beagle induced by streptozotocin and alloxan. Macroscopically, multiple cyst-like structures were observed on the cut surface of the urinary mucosa. During fixation, small specimens cut from the mucosa floated on the surface of the fixative solution. Histopathologically, multiple cysts were lined with a single layer of flattened cells found to be immunohistochemically positive for vimentin, partially positive for α-smooth muscle actin or macrophage scavenger receptor, class A, and thought to be myofibroblasts, fibroblasts or macrophages. Multinucleated giant cells were observed around the cysts, and gram-negative short bacilli were observed in the lumen of the urinary bladder. From these findings, this case was diagnosed as emphysematous cystitis.  相似文献   

Long-lasting enhancement of CYP activity after discontinuation of repeated administration of phenobarbital in dogs     

K. Fukunaga  M. Saito  E. Matsuo  M. Muto  K. Mishima  M. Fujiwara  K. Orito   《Research in veterinary science》2009,87(3):455-457

We investigated how long in vivo hepatic cytochrome P450 (CYP) activity is enhanced even after discontinuation of repeated oral administration of phenobarbital (PB) in dogs using antipyrine clearance, which reflects hepatic CYP activity. A single antipyrine (5 mg/kg) was administered intravenously before and 34 days after the repeated oral administration of PB (5 mg/kg, bid) and 2, 4, 6, and 8 weeks after the discontinuation of PB in 5 dogs. Antipyrine clearance was increased by the repeated administration of PB, and remained increased 2 and 4, but not 6 and 8 weeks after the discontinuation of PB. The result suggests that hepatic CYP activity was enhanced by the repeated administration of PB, and this enhancement may last for at least 4 weeks even after its discontinuation.  相似文献   

Greenhouse gas emissions in response to straw incorporation,water management and their interaction in a paddy field in subtropical central China   总被引：2，自引：0，他引：2  

Cong Wang  Hong Tang  Kazuyuki Inubushi  Georg Guggenberger 《Archives of Agronomy and Soil Science》2017,63(2):171-184

A field experiment was conducted to study the effects of combination of straw incorporation and water management on fluxes of CH₄, N₂O and soil heterotrophic respiration (Rh) in a paddy field in subtropical central China by using a static opaque chamber/gas chromatography method. Four treatments were set up: two rice straw incorporation rates at 0 (S1) and 6 (S2) t ha^?1 combined with two water managements of intermittent irrigation (W1, with mid-season drainage) and continuous flooding (W2, without mid-season drainage). The cumulative seasonal CH₄ emissions for the treatments of S1W2, S2W1 and S2W2 increased significantly by 1.84, 5.47 and 6.63 times, respectively, while seasonal N₂O emissions decreased by 0.67, 0.29 and 1.21 times, respectively, as compared to S1W1 treatment. The significant increase in the cumulative Rh for the treatments S1W1, S2W1 and S2W2 were 0.54, 1.35 and 0.52 times, respectively, in comparison with S1W2. On a seasonal basis, both the CO₂-equivalents (CO₂e) and yield-scaled CO₂e (GHGI) of CH₄ and N₂O emissions increased with straw incorporation and continuous flooding, following the order: S2W2>S2W1>S1W2>S1W1. Thus, the practices of in season straw incorporation should be discouraged, while mid-season drainage is recommended in paddy rice production from a point view of reducing greenhouse gas emissions.  相似文献   

Localization of eNOS in the olfactory epithelium of the rat     

Endo D  Yamamoto Y  Yamaguchi-Yamada M  Nakamuta N  Taniguchi K 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2011,73(4):423-430

Nitric oxide (NO) is a free radical and produced from L-arginine by nitric oxide synthase (NOS). Since NO is recently suggested to be involved in olfactory perception, the expression of eNOS, an isoform of NOS, was examined in the rat olfactory epithelium. The activity of NADPH-diaphorase was also examined as a marker of NOS. In the dorsomedial region of the nasal cavity, intensely positive reactions for NADPH-diaphorase were observed in the entire cytoplasm of sensory cells (olfactory cells). By immunohistochemistry, intensely positive reactions for eNOS were also found in the dorsomedial region of the nasal cavity. These reactions were observed on the free border of the olfactory epithelium. By immunoelectron microscopy, positive reactions for eNOS were found in the cilia of olfactory cells. In addition, in situ hybridization analysis of the olfactory epithelium revealed the expression of eNOS mRNA in the olfactory cells. These results indicate the presence of eNOS in the olfactory cells of the rat, and differential expression of eNOS in the olfactory epithelium depending on the regions of the nasal cavity. In addition, NO produced by eNOS may be involved in olfactory perception in the cilia of olfactory cells.  相似文献   

Long-term survival of a cow with cervical ectopia cordis     

Onda K  Sugiyama M  Niho K  Sato R  Arai S  Kaneko K  Ito S  Muto M  Suganuma T  Wakao Y  Wada Y 《The Canadian veterinary journal. La revue veterinaire canadienne》2011,52(6):667-669

This study investigated the long-term survival of a calf with cervical ectopia cordis that grew normally, became pregnant, and calved normally. The cow showed normal cardiac function and absence of peripheral circulation abnormalities. This paper documents antemortem characteristics of the affected cow.  相似文献   

Cardiac lesions in Duchenne muscular dystrophy model rats with out-of-frame Dmd gene mutation mediated by CRISPR/Cas9 system     

Mao Miyamoto  Ryota Tochinai  Shin-ich Sekizawa  Takanori Shiga  Kazuyuki Uchida  Yoshiharu Tsuru  Masayoshi Kuwahara 《Journal of toxicologic pathology》2020,33(4):227

  相似文献   

Comparative effects of osmotic and ionic stresses on yield and biomass accumulation in IR64 rice variety     

Ernesto Castillo  To Phuc Tuong  Kazuyuki Inubushi  Abdelbagi Ismail 《Soil Science and Plant Nutrition》2013,59(8):1313-1315

In the present study, the comparative effects of osmotic and ionic stresses on rice growth and yield were investigated. The treatments consisted of 3-level combinations of osmotic stress and times: medium (-0.25 MOPa),and high stress (-0.52 MPa)'app0ied at the vegetative stage (7-21 d after transplanting, DAT)and reproductive stage (35-63 DAT, starting when the rice plant reached panicle initiation). NaCl and polyethylene glycol (PEG) were used as sources of osmotic stress. Both sources applied at the vegetative and reproductive stages delayed flowering, maturity and reduced the total biomass compared with the controD.Na⁺ concentration in the plant increased with NaCl addition but not with PEG, indicating that the plants were also subjected to ionic stress besides osmotic stress. There was no significant difference in biomass accumulation and yield between the PEG- and NaCl-treatments,imdicating that the salinity effect was mainly due to osmotic stress.  相似文献   

National-scale estimation of methane emission from paddy fields in Japan: Database construction and upscaling using a process-based biogeochemistry model     

Michiko Hayano  Kazuyuki Yagi  Yasuhito Shirato 《Soil Science and Plant Nutrition》2013,59(5):812-823

We have estimated methane (CH₄) emission from total rice (Oryza sativa L.) paddies in Japan by means of a process-based biogeochemistry model, DeNitrification-DeComposition(DNDC)-Rice, combined with a geographic information system (GIS) database of climate, soil and farming practices. In the GIS database, 2 million ha of rice paddies were divided into 17,408 units according to 136 climate areas, 16 soil types, four classes of drainage rate and two classes of groundwater level, to simulate CH₄ flux from each of the units applying the DNDC-Rice model. As a result, the national-scale CH₄ emission in 1990 was estimated to be 216 Gg carbon (C), 13% lower than a previous inventory estimated by the Tier 2 method. By our Tier 3 approach, a relatively higher CH₄ flux was estimated from eastern regions than from western regions of Japan, presumably due to the differences in climate and water management. Sensitivity analysis and uncertainty assessment indicated that it is important to account for the heterogeneity in soil properties such as field water capacity, iron (Fe) concentration and drainage rate, in order to reduce the uncertainty in regional estimates.  相似文献   

Movements of free oxides in paddy soil profiles (Part 1)     

Keizaburo Kawaguchi  Yoshiro Matsuo 《Soil Science and Plant Nutrition》2013,59(1):35-36

In this paper, the results of observations of soil profiles and the investigations of movements of free oxides in two soil types of dry paddy fields Which carry barley or wheat in the period of winter crops are set forth. Their parent materials are charty somewhat accompanied with shales and granite, and in Soil A and B a small quantity of volcanic ash is contained. The structure develops Well in all the soils.  相似文献   

Distribution of free oxides along soil profiles in time series of dry rice fields in polder lands of Kojima-basin     

Keizaburo Kawaguchi  Yoshiro Matsuo 《Soil Science and Plant Nutrition》2013,59(1):67-70

The distributions of free oxides along profiles of some dry rice fields were set forth in the previous reports²,³,⁴,⁶⁾, In this paper, the distribution of free oxides in dry rice field⁵⁾ in polder lands of Kojima-Basin, Okayama pref. is reported. Localities, years elapsed since the planting of rice began in each field and the characteristic of soil profiles are given in Table 1. All the fields are dry rice fields except Soil A, and carry barley or wheat in winter season. Parent materials are similar in all horizons of all soils and rich in fine particles. Fine sands (0.2-0.02 mm) are mainly composed of quartz somewhat accompanied with feldspars, mica, augite and amphibolite. Clays (< 0.002 mm) are mainly composed of halloysite accompanied with a small proportion of montmorillonite. The structure develops well in all the soils.  相似文献