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61.
Akira MATSUDA Ikki MITSUI Yuki SHIMIZU Teppei KANDA Akihiro OHNISHI Masahiro MIYABE Yoshiki ITOH 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2020,82(11):1577
Little is known about the pathological roles of sebaceous glands in canine skin diseases, as most examinations have been conducted with cultured human sebaceous epithelial cell lines. To our knowledge, there is no available canine sebaceous epithelial cell line. The purpose of this study was to establish a canine sebaceous epithelial cell line and characterize it. An eyelid mass in a dog was surgically resected for treatment, and it was histologically diagnosed as sebaceous epithelioma. Collected tissue was conducted for culture, and the growing epithelial-like cells were passaged. The cells showed continuous proliferation for over 6 months. After 40 passages, the cells were named CMG-1. Lipid droplets in the cytoplasm of CMG-1 cells were confirmed by Oil Red O staining. As reported in studies with human sebaceous epithelial cell lines, lipogenesis in CMG-1 cells was promoted by linoleic acid, whereas transforming growth factor-β (TGF-β) suppressed it. Additionally, real-time PCR revealed that the expression levels of chemokines and cytokines, including CC chemokine ligand (CCL)-2, CCL-20, CXCL-10, Tumor necrosis factor-α (TNF-α), Interleukin (IL)-1α, IL-1β, and IL-8, were significantly increased in CMG-1 cells following treatment with lipopolysaccharide. In conclusion, we successfully established a new canine sebaceous epithelial cell line. Our data indicated that lipogenesis and inflammatory responses were quantitatively evaluable in this cell line. CMG-1 cells could be useful for the pathological analysis of sebaceous gland diseases in dogs. 相似文献
62.
Naoaki Yamada Satomi Hashimoto Yuki Tomonari Hiroko Kokoshima Takuya Doi Junko Sato Yumi Wako Minoru Tsuchitani 《Journal of toxicologic pathology》2013,26(3):313-317
A five-month-old male beagle dog suddenly became moribund. Bloody fluid accumulated in the thoracic and abdominal cavities, and soft yellow flecks were floating in the thoracic fluid. The mediastinum and pericardium became dark reddish with villous thickening. Other parietal and pulmonary pleurae were rough, and the organs adhered to each other. Histologically, most mediastinal pleura formed papillary projections covered by a single layer of mesothelial cells. Many macrophages and neutrophils infiltrated the submesothelial connective tissue. At the mediastinum adjacent to the pericardium, cuboidal mesothelial cells proliferated solidly and formed a thick surface stratum. The flecks consisted of gram-negative filamentous or small bacillary (coccoid) bacteria. In the right posterior lobe of the lung, neutrophilic infiltration and a large encapsulated abscess including a bacterial colony were present. We diagnosed this case as “bacterial pleuritis with thickened mesothelial hyperplasia”. The cause of the pleuritis might be a chronic pleural infection spread via the lung abscess. 相似文献
63.
Effects of extracerebral dopamine on salsolinol‐ or thyrotropin‐releasing hormone‐induced prolactin (PRL) secretion in goats 下载免费PDF全文
Yuki Inaba Yuki Kato Azumi Itou Aoi Chiba Ken Sawai Ferenc Fülöp György Miklos Nagy Tsutomu Hashizume 《Animal Science Journal》2016,87(12):1522-1527
The aim of the present study was to clarify the effect of extracerebral dopamine (DA) on salsolinol (SAL)‐induced prolactin (PRL) secretion in goats. An intravenous injection of SAL or thyrotropin‐releasing hormone (TRH) was given to female goats before and after treatment with an extracerebral DA receptor antagonist, domperidone (DOM), and the PRL‐releasing response to SAL was compared with that to TRH. DOM alone increased plasma PRL concentrations and the PRL‐releasing response to DOM alone was greater than that to either SAL alone or TRH alone. The PRL‐releasing response to DOM plus SAL was similar to that to DOM alone, and no additive effect of DOM and SAL on the secretion of PRL was observed. In contrast, the PRL‐releasing response to DOM plus TRH was greater than that to either TRH alone or DOM alone and DOM synergistically increased TRH‐induced PRL secretion. The present results demonstrate that the mechanism involved in PRL secretion by SAL differs from that by TRH, and suggest that the extracerebral DA might be associated in part with the modulation of SAL‐induced PRL secretion in goats. 相似文献
64.
Tomonari Kasai Tomoko Suzuki Kozue Ono Ken'ichi Ogawa Yoshishige Inagaki Yuki Ichinose Kazuhiro Toyoda Tomonori Shiraishi 《Journal of General Plant Pathology》2006,72(5):265-272
We previously reported that the release of O2
− from isolated pea cell walls was enhanced by a 70-kDa glycoprotein elicitor but was suppressed by mucin-type glycopeptide
suppressors (supprescins A and B) prepared from pycnospore germination fluid of Mycosphaerella pinodes, causal agent of Mycosphaerella blight of pea. Here, we show that superoxide dismutase (SOD) in the apoplast fluid/cell wall
of pea seedlings responds to the fungal elicitor and suppressor molecules. In a pharmacological study and with internal amino
acid sequencing, the apoplastic SOD in a pea cultivar Midoriusui was found to be a Cu/Zn type SOD. We cloned a full-length
cDNA of the Cu/Zn-SOD and designated it as PsCu/Zn-SOD1. An increase in PsCu/Zn-SOD1 mRNA and the PsCu/Zn-SOD1 protein was induced by treatment with the elicitor more intensively
than by wounding. Such induction by the elicitor or wounding, however, was inhibited by the concomitant presence of supprescins.
The SOD activity of recombinant PsCu/Zn-SOD1 was regulated directly by these signal molecules in a manner similar to their
effect on the SOD activity in the apoplastic fluid and in the cell wall-bound proteins. Based on these findings, we discuss
a role for PsCu/Zn-SOD1 in the pea defense response.
The nucleotide sequence data of PsCu/Zn-SOD1 reported are available in the DDBJ/EMBL/GenBank databases under accession number AB189165. 相似文献
65.
Yuki YAMAMOTO Yoshihiko KOBAYASHI Kiyoshi OKUDA 《The Journal of reproduction and development》2014,60(1):73-77
Isolated stromal cells from the ampullary and isthmic parts of bovine oviductal tissues
were cultured in monolayer and spheroid (cell aggregate) systems. Prostaglandin F2α (PGF)
plays a crucial role in oviductal contraction and is produced by oviductal epithelial
cells in cattle. Since stromal cells of many organs produce PGF, PGF production by bovine
oviductal stromal cells was investigated. After PGF synthesis was confirmed, the utility
of isolation and culture methods for oviductal stromal cells was evaluated by PGF
production in the present study. The homogeneity of the cells was > 99%. PGF production
of the cells was increased by tumor necrosis factor-α. The stromal cells aggregated and
formed a spheroid by the treatments with several reagents. PGF production was higher in
the spheroid culture than in the monolayer culture. The isolation and culture methods
described here will facilitate studies of the physiological function of bovine oviductal
stromal cells. 相似文献
66.
Mizuho TASHIRO Yuki HOSOKAWA Hiromi AMAO Atsushi TOHEI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2020,82(12):1757
Hypothermia during anesthetic events is a common adverse effect of anesthesia in laboratory animals. In particular, small rodents such as mice is susceptible to hypothermia during anesthetic events. Therefore, the animals will need additional thermal support by external heating devices during and after anesthesia. In general, the time of recovery from anesthesia is typically longer in case of injectable anesthesia rather than inhalant anesthesia. However, the durations of thermal support have been almost limited to 1 hr from administration of anesthesia in general. Our study objectives are two-fold: 1) to compare the levels of hypothermia induced by injectable anesthesia with medetomidine-midazolam-butorphanol (MMB) and inhalant anesthesia with isoflurane (ISO); 2) to find the adequate durations of thermal support for preventing hypothermia induced by their anesthesia in mice. Adult male ICR mice were anesthetized during 40 min without and with the thermal support for 1 (both anesthetic groups), 2, 3, and 5 hr (in MMB group). Without thermal support, the decrease of body temperature in MMB group were more severe than that in ISO group. The durations of thermal support completely prevented hypothermia at 5 hr-support in MMB group and that at 1 hr-support in ISO group. However, the other short durations did not prevent hypothermia at 1, 2 and 3 hr-support in MMB group. These results suggest that the mice should be received thermal support over 5 hr after injection of MMB anesthesia to prevent hypothermia. 相似文献
67.
Natsuki KASUYA Qin XU Yoshinao KOBAYASHI Kiyoharu FUKUDA Osamu ENISHI Kenji IIYAMA Hisao ITABASHI 《Animal Science Journal》2008,79(2):200-209
Four tropical and four temperate grasses were subjected to nylon bag fiber degradation study with fistulated Holstein cattle as well as in vitro digestion with broad spectrum cellulase, and the degradability of cell wall carbohydrate and lignin for the respective forage grasses were determined. The degradability of neutral detergent fiber and acid detergent fiber for the same plant materials appeared to be similar, but that of acid detergent lignin was constantly lower. As for the plant materials used in the present study, Italian ryegrass, orchardgrass and guineagrass showed high degradability of fibers in nylon bag incubation, while setaria, cogongrass and wheat showed smaller degradability. In both nylon bag incubation and in vitro digestion experiments, the forage samples showing relatively lower degradability exhibited notably lower disappearance of xylose than that of glucose or arabinose. It was also observed that dry matter degradability correlated negatively with the initial content of esterified and/or etherified p‐coumaric acid. These results were assumed to be caused by the difference in resistance towards rumen microbial degradation due to the concentration of lignin‐carbohydrate complex. 相似文献
68.
Fumiko TAGUCHI Rui TANAKA Sayuri KINOSHITA Yuki ICHINOSE Yoshiyuki IMURA Salamah ANDI Kazuhiro TOYODA Tomonori SHIRAISHI Tetsuji YAMADA 《Journal of General Plant Pathology》2001,67(2):116-123
To elucidate the role of harpins produced by Pseudomonas syringae, the corresponding hrpZ gene was isolated from P. s. pv. tabaci. The sequence information revealed that this gene carries a serious mutation with 326 bp lacking in the central region and
potentially encodes only 140 N-terminal amino acids because of a frame shift. The investigation of biological properties using
recombinant harpin indicated harpinpsta was incapable of inducing HR in both host and nonhost plants. Based on an immunoblot analysis to detect harpin from P. s. pathovars in hrp-inducing medium, the truncated harpinpsta was neither expressed nor secreted into the culture medium. These results suggest that harpin is not the sole determinant
of the host-parasite specificity in P. s. pv. tabaci.
Received 10 August 2000/ Accepted in revised form 21 December 2000 相似文献
69.
Takagi S Kadosawa T Ohsaki T Hoshino Y Okumura M Fujinaga T 《Journal of the American Veterinary Medical Association》2005,226(8):1359-63, 1347
A 6-month-old female Border Collie was examined because of a 1-month history of progressive curvature of the cervical portion of the vertebral column. Radiography revealed severe cervical and thoracic scoliosis. Cervical syringomyelia and hydrocephalus were observed by means of magnetic resonance imaging. Suboccipital craniotomy and laminectomy of the first cervical vertebra were performed, and substantial improvement in the scoliosis and syringomyelia was observed 3 months after surgery. No recurrences were seen during the first year after surgery. 相似文献