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排序方式: 共有127条查询结果,搜索用时 31 毫秒
101.
Yuji Sumii Naoyuki Kotoku Akinori Fukuda Takashi Kawachi Masayoshi Arai Motomasa Kobayashi 《Marine drugs》2015,13(12):7419-7432
Oral dictyoceratin-C (1) and A (2), hypoxia-selective growth inhibitors, showed potent in vivo antitumor effects in mice subcutaneously inoculated with sarcoma S180 cells. Structurally modified analogs were synthesized to assess the structure–activity relationship of the natural compounds 1 and 2 isolated from a marine sponge. Biological evaluation of these analogs showed that the exo-olefin and hydroxyl and methyl ester moieties were important for the hypoxia-selective growth inhibitory activities of 1 and 2. Thus far, only substitution of the methyl ester with propargyl amide in 1 was found to be effective for the synthesis of probe molecules for target identification. 相似文献
102.
Naoyuki AIHARA Anna MOMOKI Nanase HATTORI Hironobu MURAKAMI Motoharu OISHI Yoshiaki GOTO Reiichiro SATO Makoto NAGAI Kazutaka YAMADA Junichi KAMIIE 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2022,84(2):302
A 7-month-old female Holstein calf presented with bilateral microtia and absent external acoustic meatus. The real-time polymerase chain reaction test was negative for bovine viral diarrhea virus and bovine leukemia virus. The calf’s dam had a normal reproductive history. Computed tomography confirmed bilateral atresia of external auditory canals, aplasia of tympanic cavities and the ossicular chain, and temporomandibular joint abnormality. Necropsy revealed a severe malformation of the temporal bone. In the tympanic region, the external acoustic pore, tympanic bulla, and muscular process were absent bilaterally. The bilateral inner ear structure was normal. Based on these findings, we diagnosed the present case as congenital malformations of the external and middle ear accompanied by temporal bone anomaly. 相似文献
103.
Itoh N Muraoka N Kawamata J Aoki M Itagaki T 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2006,68(2):161-163
Fecal samples obtained from 600 household cats (244 males and 356 females) kept in 3 prefectures of Tohoku district in Japan were examined for Giardia intestinalis antigen, using a commercial enzyme-linked immunosorbent assay (ELISA) kit. G. intestinalis antigen was detected in 40% of the fecal specimens. The factors such as the age, life style or environmental condition of cats could be significantly related to the positive rate of G. intestinalis antigen. In contrast, the investigative district, appearance of feces, sex, breed or origin produced no significant difference in the positive rate. The present results suggest that G. intestinalis infection is widely spread in household cats of Tohoku district. 相似文献
104.
Tominaga Y Miyagawa Y Toda N Takemura N 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2011,73(8):971-975
We evaluated the diagnostic significance of the N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentration in asymptomatic cats with cardiac enlargement. The plasma NT-proBNP concentration was measured in 21 clinically healthy control cats, and 67 asymptomatic cats with cardiac enlargement defined as end-diastolic interventricular septum thickness (IVSd) and/or diastolic left ventricular posterior wall thickness (LVPWd) >0.6 cm, vertebla heart scale (VHS) >7.8, and/or left atria/aorta ratio (LA/Ao) >1.5. The plasma NT-proBNP concentration in the asymptomatic cats with cardiac enlargement (median: 662.0, range: 24.0-2,449.0 pmol/l) was significantly higher than that in the controls (24.0, 24.0-95.0 pmol/l, P<0.001). The plasma NT-proBNP concentration was significantly correlated with the VHS, LA/Ao, IVSd and LVPWd (r=0.578, P<0.001; r=0.462, P<0.001; r=0.563, P<0.001; and r=0.764, P<0.001, respectively). Receiver operating characteristic analysis showed a cut-off value of 95.0 pmol/l for the detection of asymptomatic cats with cardiac enlargement, sensitivity and specificity of 88.1 and 100%, respectively, and an area under the curve of 0.971. These results suggest that the determination of the plasma NT-proBNP concentration can be a useful screening test for asymptomatic cats with cardiac enlargement. 相似文献
105.
106.
Yukari UETAKE Hitoshi NAKAMURA Masao ARAKAWA Ikuko OKABE Naoyuki MATSUMOTO 《Journal of General Plant Pathology》2001,67(3):175-181
A root box method with carrots was developed to estimate virulence of the violet root rot fungus, Helicobasidium mompa, to facilitate short-term screening of many isolates during a year. The root box consisted of two transparent acrylic plates
and a plastic bag of vermiculite in which two taproots of carrot were growing and inoculated with the fungus growing on fragments
of mulberry twigs. The boxes were kept in a greenhouse at 25°C, and the surface of carrots was observed weekly up to 14 weeks.
The virulence of each isolate was determined based on the number of weeks after inoculation required for the fungus to develop
infection cushions on the surface of carrots. Results were compared with those from the conventional inoculation method using
apple stocks. Two-year-old 456 apple stocks were planted with or without fungal inoculum in 30-cm diam. plastic pots containing
commercial soil and placed outdoors in April 1999. Symptoms on plant tops were observed weekly, and the first stocks were
killed 14 weeks after inoculation. At the end of trial 1 (6 months) and trial 2 (14 months), apple stocks were dug up to rate
disease index (DI) based on hyphal growth and infection cushion formation on the stem base. There was variability in disease
severity among replicates as well as isolate variability ; however, the results were similar in both trails. The level of
virulence estimated by both methods was almost parallel for a total of 23 isolates from five plant species, except for two
isolates from sweet potato that formed no obvious infection cushion on apple roots but on carrot were the most virulent.
Received 11 December 2000/ Accepted in revised form 23 March 2001 相似文献
107.
Tomioka Keisuke Sekiguchi Hiroyuki Nomiyama Koji Kawaguchi Akira Kawakami Akira Masunaka Akira Kobayashi Hidekazu Chiba Masahiro Nagata Kenji Ishikawa Naoyuki 《Journal of General Plant Pathology》2021,87(5):273-280
Journal of General Plant Pathology - A ripening disorder with early blighting of foliage including spike bleaching was observed on bread wheat in May 2017 and durum wheat in May 2018 in... 相似文献
108.
Naoyuki Matsui Tatsuro Ohira Yasushi Hiramatsu Yasunori Imai Yoshifumi Miyazaki 《Journal of Wood Science》2007,53(6):529-532
Volatiles inside tatami mats containing hinoki (Chamaecyparis obtusa) wood-wool as padding were analyzed. Volatiles were collected with solid-phase microextraction (SPME) fibers in a small chamber
prepared in tatami mats and assayed by gas chromatography. Most of the detected compounds are typically found in hinoki extractives.
Monoterpenes rapidly decreased at the beginning of the experiment, while the dispersion of sesquiterpenes that contain hydroxyl
groups was observed to last more than 1 year. These sesquiterpenes, T-cadinols, and α-cadinols may play a role in the suppression of house dust mites.
Part of this report was presented at the 55th Annual Meeting of the Japan Wood Research Society in Kyoto, March 2005 相似文献
109.
Relationships between postnatal plasma oxytocin concentrations and social behaviors in cattle
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We examined the associations between natural individual variations in basal oxytocin (OXT) in postnatal cattle and social behavioral traits. At 1, 2 and 6 weeks of age, the basal OXT exhibited individual variability in 20 Holstein heifer calves. Cluster analysis of mean OXT for these time periods obtained two subgroups: high OXT (HOXT; n = 9) and low OXT (LOXT; n = 11). Social behaviors were observed for 2 days at week 6 after introduction into a four‐peer group, and at 10–14 months of age (10 months) immediately and 1 week, 1 month and 5 months after introduction into 11–15 heifers. At week 6, the main effect of the OXT groups was not significant for all social behaviors. At 10 months, there tended to be interactions between the OXT groups and time periods with respect to the frequency of escape behaviors. LOXT heifers exhibited more escape behaviors than HOXT heifers on the first day of the second sociality tests. At 10 months, HOXT heifers exhibited both attacking and affiliative behavior for peers more than LOXT heifers during 5 months after the second social introduction. This suggests that postnatal OXT concentrations may have long‐lasting effects on individual differences among social behavioral traits in cattle. 相似文献
110.
Naoyuki FUKE Nguyen Van DIEP Takuya HIRAI Mathurot SUWANRUENGSRI Uda Zahli IZZATI Ryoji YAMAGUCHI 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2021,83(11):1661
An eighteen-year-old female Eurasian otter became emaciated and died. Necropsy examination revealed nose and thoracic cutaneous masses, abdominal subcutaneous mass, and multiple nodules in the liver and lungs. Malignant melanoma was found in the nose cutaneous mass and to have metastasized to the liver, lungs, kidneys, adrenal glands, mammary glands and left mandibular lymph node. The neoplastic cells were labeled for vimentin, melanoma, and S100. The cutaneous mass in the thoracic area consisted of spindle shaped neoplastic epithelial cells and was diagnosed as trichoblastoma. Mammary gland adenoma was observed in the abdominal subcutaneous mass. This is the first report of primary three neoplasms of malignant melanoma, trichoblastoma and mammary gland adenoma in a Eurasian otter. 相似文献