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171.
Shibano K Kawamura S Hakamada R Kawamura Y 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2005,67(2):191-193
The serum concentration of non-essential amino acid (NEAA) was measured in ten Holstein dairy cows grouped as low production (n=5) and high production (n=5) from one month pre-partum through four months post-partum and the relationship between production and amino acid concentrations was studied. The glycine (Gly)/NEAA ratio and the glycine/alanine ratio of the high production group were significantly higher than the low production group (p<0.01). The observed decrease of the alanine (Ala)/NEAA ratio was more remarkable in the high production group than in the low production group. Measurement of Gly/Ala ratio in serum may be useful for evaluating the nutritional status of peri-parturient dairy cow. 相似文献
172.
Okuno S Nakamura A Kobayashi T Orito K 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2005,67(7):719-722
We conducted somatosensory evoked potential (SEP) monitoring on 3 dogs with cervical spinal cord dysfunction caused by various diseases throughout operative procedures to examine whether the intraoperative SEP monitoring was effective for prediction of spinal cord conductive function. The SEP was recorded on the scalp via stimulation of the ulnar nerve. Stable SEP was recorded in all animals examined. Its amplitude was decreased by surgical manipulations of the regio vertebralis, but the amplitude gradually recovered once the manipulations were halted. The latency showed small variation throughout the operations. This evidence suggests that intraoperative SEP monitoring may provide continuous and instantaneous information regarding the functional integrity of the central nervous system. 相似文献
173.
Ogawa S Hong DP Mori N Umesako S Song CW Okumoto M 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(1):97-102
Mutations of Fas (CD95/Apo-1) gene have been reported in various malignancies and therefore the Fas gene has been considered to be a tumor suppressor gene. To examine an involvement of Fas gene as a tumor suppressor gene in radiation lymphomagenesis, we examined the loss of heterozygosity (LOH) in lymphomas from (MSM/Ms x MRL-MpJ/Fas (lpr)) F(1) and (BALB/cHeA x MRL-MpJ/Fas (lpr)) F(1) hybrid mice. Lymphoma development by X-irradiation was efficiently observed in both F(1) hybrids. Frequent LOH was found on chromosomes 12 and 4 in the tumors from both F(1) mice, but no allelic loss on chromosome 19 containing Fas locus was found, and no wild-type allele of the Fas gene was lost in 51 lymphomas. Therefore, the putative tumor-suppressor gene regions responsible for lymphomagenesis might not considerably differ due to the Fas gene status. 相似文献
174.
Tomohisa Kuroda Tomohide Natsuaki Seiichi Okuda Michiaki Teranaka 《Journal of General Plant Pathology》2005,71(3):221-229
Plants naturally infected with Cucumber mosaic virus (CMV) were collected and analyzed by electrophoresis of the replicative form of dsRNA and by Northern blot hybridization using CMV RNA-specific probes. Some of the CMV-infected plants, especially winter crops, contained two kinds of RNA 1 segments or RNA 2 segments (or both), suggesting that mixed infections of CMV occurred naturally. Single-aphid-transmitted isolates (SATIs) from the field isolate containing two RNA 1 segments were grouped into three types by the electrophoretic mobility of RNA 1 (i.e., those containing one slow segment, those containing one fast segment, and those containing both). Furthermore, SATIs and single-lesion isolates, generated from the plants inoculated with a mixture of two CMV isolates that could be differentiated by their electrophoretic dsRNA profiles, were analyzed by dsRNA, indicating that nonparental progenies were observed. These results suggested that genetic reassortment of CMV RNA may occur in nature and that this is an important mechanism in CMV evolution. 相似文献
175.
Fujieda M Tanaka T Suwa Y Koshimizu S Kouno I 《Journal of agricultural and food chemistry》2008,56(16):7305-7310
Three new phenolic compounds named whiskey tannins A and B and carboxyl ellagic acid were isolated from commercial Japanese whiskey, along with gallic acid, ellagic acid, brevifolin carboxylic acid, three galloyl glucoses, a galloyl ester of phenolic glucoside, 2,3-(S)-hexahydroxydiphenoylglucose, and castacrenin B. Whiskey tannins A and B were oxidation products of a major oak wood ellagitannin, castalagin, in which the pyrogallol ring at the glucose C-1 position of castalagin was oxidized to a cyclopentenone moiety. These tannins originated from ellagitannins contained in the oak wood used for barrel production; however, the original oak wood ellagitannins were not detected in the whiskey. To examine whether the whiskey tannins were produced during the charring process of barrel production, pyrolysis products of castalagin were investigated. Dehydrocastalagin and a new phenolcarboxylic acid trislactone having an isocoumarin structure were isolated, along with castacrenin F and ellagic acid. However, whiskey tannins were not detected in the products. 相似文献
176.
Agung Setiarto Carlos Augusto Strüssmann Fumio Takashima Seiichi Watanabe & Masashi Yokota 《Aquaculture Research》2004,35(7):669-677
The effects of salinity on haemolymph osmolality, oxygen consumption and ammonia excretion were investigated in adult kuruma shrimp, Marsupenaeus japonicus (Bate), at salinities of 20, 25, 30 and 35 g L?1. Haemolymph osmolality showed a positive linear relationship (r2=0.9854) with medium osmolality. The isosmotic point calculated from this relationship was 1039 mOsm kg?1, which corresponds to a salinity of approximately 35 g L?1. The slope of the regression equation was very high (0.81), suggesting that M. japonicus adults are poor osmoregulators compared with the adults of other penaeids and to conspecific young. The difference between haemolymph and medium osmolality (DOP) was lowest at 35 g L?1 and highest at 20 g L?1. Thus, the minimum DOP coincided with the isosmotic point of the shrimp. The respiration rate was significantly lower at 30 g L?1 than at the other salinities. Ammonia excretion rates were inversely related with salinity and therefore were minimal at 35 g L?1. The results of this study suggest that the optimum salinity for adult kuruma shrimp is around 30–35 g L?1 and that even minor (e.g. 5 g L?1) deviations from this optimum cause significant physiological changes. Further, the observed increases in oxygen consumption and ammonia excretion during exposure to low salinities, which indicate higher energy expenditure and amino acid catabolism for osmoregulation, respectively, suggest that the growth efficiency of M. japonicus adults may be severely compromised by hypohaline water inflow into the rearing ponds. 相似文献
177.
Faruq Ahmed Masashi Yokota Seiichi Watanabe Yasuyuki Koike Susumu Segawa & Carlos Augusto Strüssmann 《Aquaculture Research》2005,36(8):799-802
The adoption of an upright posture in abalones is essential to enable them to use their foot, and hence to be able to move and seek shelter, as well as to avoid exposure of soft parts and possible predation. In mass restocking programs for abalone, juveniles are released by divers near the seabed, but without control over their posture when they reach the bottom. Thus, the time to recover the upright posture is an important consideration in abalone restocking programs as the quicker they assume this posture the higher the likelihood of survival. This study reports significant differences in the speed of recovering the upright posture between juveniles of the abalones Haliotis discus discus, H. gigantea and H. madaka and between tests conducted under stagnant and flowing water conditions. Longer times were required for recovery in all species in stagnant than flowing water. On average, juveniles of H. discus discus (17.16 and 10.43 s) and H. gigantea (22.54 and 11.89 s) recovered faster than those of H. madaka (161.13 and 49.02 s) under stagnant and flowing water conditions respectively. These results suggest that different species require different levels of care and that water flow or current at the time of release may affect post‐release survival. 相似文献
178.
179.
180.
Lack of exposed ice inside lunar south pole Shackleton Crater 总被引:2,自引:0,他引:2
Haruyama J Ohtake M Matsunaga T Morota T Honda C Yokota Y Pieters CM Hara S Hioki K Saiki K Miyamoto H Iwasaki A Abe M Ogawa Y Takeda H Shirao M Yamaji A Josset JL 《Science (New York, N.Y.)》2008,322(5903):938-939
The inside of Shackleton Crater at the lunar south pole is permanently shadowed; it has been inferred to hold water-ice deposits. The Terrain Camera (TC), a 10-meter-resolution stereo camera onboard the Selenological and Engineering Explorer (SELENE) spacecraft, succeeded in imaging the inside of the crater, which was faintly lit by sunlight scattered from the upper inner wall near the rim. The estimated temperature of the crater floor, based on the crater shape model derived from the TC data, is less than approximately 90 kelvin, cold enough to hold water-ice. However, at the TC's spatial resolution, the derived albedo indicates that exposed relatively pure water-ice deposits are not on the crater floor. Water-ice may be disseminated and mixed with soil over a small percentage of the area or may not exist at all. 相似文献