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排序方式: 共有69条查询结果,搜索用时 0 毫秒
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Circadian rhythms. Daily watch on metabolism 总被引:1,自引:0,他引:1
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Kaji N Okuno A Ohno-Ichiki K Oki H Ishizawa H Shirai M Asai F 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2012,74(9):1185-1189
Plasma profiles of glucose, insulin and lipids were examined in the male WBN/Kob-Lepr(fa) (fa/fa) rat, a new model of type 2 diabetes (T2D), in comparison with age-matched original male WBN/Kob (lean) rats. The fa/fa rats developed hypertriglycemia, obesity and hyperglycemia from 5, 7, and 9 weeks of age, respectively. Plasma insulin levels in fa/fa rats were significantly higher than those in lean rats at 5 weeks of age, but after 11 weeks of age gradually declined to the levels in lean rats. HOMA-IR, a measure of insulin resistance status, showed that fa/fa rats had insulin resistance. The fa/fa rat has the potential to become an important animal model of T2D with obesity. 相似文献
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Shotaro Takeuchi Minoru Saito Keisuke Imaizumi Toshio Kaidoh Hiroki Higuchi Sachiko Inubushi 《Veterinary microbiology》2002,84(1-2):135-142
The gene (aur) encoding the metalloprotease (aureolysin) of Staphylococcus aureus from domestic animals was analyzed by polymerase chain reaction (PCR), PCR-restriction fragment length polymorphism (PCR-RFLP) and sequencing. The aur gene was detected in all 74 isolates from cows, pigs and chickens by PCR amplification and was classified into types I and II by PCR-RFLP patterns. The type II aur gene was contained in 36 (94.7%) of 38 protease-positive isolates as judged by skim milk agar plate culture, while type I was contained in 28 (77.8%) of 36 protease-negative isolates. The deduced amino acid sequences of aureolysins from type I and II isolates were almost identical with those of the published data. Subsequently, the two aureolysins were purified from the culture supernatants of type I and II isolates. The molecular weights of purified type I and II aureolysins were both estimated at 34kDa by SDS-polyacrylamide gel electrophoresis. These aureolysins had maximum proteolytic activity at 30-50 degrees C and pH 7.0-8.0. Their activity was inhibited by metal- and zinc-specific inhibitors, such as EDTA, EGTA and 1,10-phenanthroline. Specific activity (activity/protein) of type II aureolysin was two times higher than that of type I. These results indicated that the aur gene is highly conserved with two allelic forms (types I and II) among bovine, porcine and avian isolates of S. aureus. 相似文献
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Itaru Yamaguchi Kensuke Myojo Hiroko Sanada Eri Sudo Sayaka Ootsuka Hiroshi Okumura Atsuko Takami Tomomi Yoneshige Yui Suzuki Minami Imaizumi Chie Takada Naoya Kimoto Koji Saeki Katsumi Takaba 《Journal of toxicologic pathology》2013,26(3):301-307
We histopathologically and immunohistochemically investigated a case of malignant
lymphoma that spontaneously developed in a male common marmoset at two years of age.
Beginning at two years four months of age, the animal had an enlargement of the
submandibular and inguinal lymph nodes, small subcutaneous nodules near the right breast
and an approximately fivefold increase in peripheral lymphocyte count compared with the
previous examination value. The postmortem findings at two years eight months of age
showed lymphadenopathy with enlargement of the thymus and spleen. Small- to
intermediate-sized neoplastic lymphocytes had diffusely proliferated in the enlarged
nodes. The neoplastic cells were pleomorphic and had irregularly shaped nuclei. The
nuclear chromatin staining revealed hyperchromatism in the small-sized cells, and the
intermediate-sized cells exhibited vesicular staining. An immunohistochemical examination
indicated that the neoplastic lymphocytes were positive for CD3 and negative for CD20,
thus suggesting that they had originated from T cells. In addition, the proliferation of
high endothelial venules and reactive epithelioid histiocytes was observed. Scattered
tingible body-laden macrophages were infrequently detected. Neoplastic lymphocytes were
also observed in the thymus, spleen, heart, lungs, liver, kidneys, adrenal glands and
femoral and sternal bone marrow. This malignant lymphoma in a young male common marmoset
was considered to fit the category of “peripheral T-cell lymphoma, not otherwise specified
(PTCL-NOS)” according to the new WHO system of classification. 相似文献
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Hiroyuki Matsunari Hiroshi Hashimoto Takashi Iwasaki Kentaro Oda Yoshitsugu Masuda Hitoshi Imaizumi Kazuhisa Teruya Hirofumi Furuita Takeshi Yamamoto Kazuhisa Hamada Keiichi Mushiake 《Fisheries Science》2013,79(5):815-821
The effect of feeding rotifers enriched with taurine on the growth performance and survival of larval amberjack Seriola dumerili was investigated. Rotifers were enriched with a commercial taurine supplement at four levels (0, 200, 400, and 800 mg/l). The larvae were fed the enriched rotifers in triplicate from 3 days post-hatch for 7 days under static conditions. The average taurine contents of the rotifers were 1.5, 2.7, 4.2, and 7.2 mg/g dry matter, respectively. The growth of the fish fed rotifers enriched with the taurine supplement at 800 mg/l was significantly (P < 0.05) improved compared with that of the fish fed the rotifers without taurine enrichment. The survival rate improved proportionally up to a taurine supplement level of 400 mg/l, but no significant differences in survival were observed among treatments. The fraction of the larvae with inflated swim bladders did not vary significantly between treatments. Taurine content in the whole fish body increased with the taurine level in the rotifers. These results suggest that taurine enrichment of rotifers is an effective method of enhancing the growth of amberjack larvae. 相似文献
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Hiroyuki Matsunari Hiroshi Hashimoto Kentaro Oda Yoshitsugu Masuda Hitoshi Imaizumi Kazuhisa Teruya Hirofumi Furuita Takeshi Yamamoto Kazuhisa Hamada Keiichi Mushiake 《Aquaculture Research》2013,44(11):1696-1705
The effect of docosahexaenoic acid (DHA) on the growth performance, survival and swim bladder inflation of larval Seriola dumerili during the rotifer feeding period was investigated in two feeding experiments. Amberjack larvae at 3 day post hatching were fed rotifers enriched with (1) freshwater C hlorella (Chlo), (2) a mixture (2:1, v/v) of Chlo and DHA‐enriched C hlorella (DHA‐Chlo), (3) DHA‐Chlo and (4) DHA‐Chlo and commercial DHA emulsion, in triplicate for 7 days. The average DHA contents of the rotifers were 0.0, 0.4, 1.0 and 1.9 mg g?1 DM respectively. The survival rate was improved by the enrichment of rotifers with DHA‐Chlo alone, and DHA‐Chlo and emulsion. Growth and swim bladder inflation of fish fed rotifers enriched with DHA‐Chlo were significantly (P < 0.05) improved, however, with increased levels of DHA further improvement was not found. DHA content in the larval whole body proportionally increased with the DHA level in the rotifers. These results suggest that DHA enrichment of rotifers is effective to improve the growth, survival rate and swim bladder inflation of amberjack larvae. The DHA requirement of amberjack larvae is estimated to be 1.5 mg g?1 on a dry matter basis of rotifers. 相似文献