Development of Babesia gibsoni in the hemolymph of the vector tick, Haemaphysalis longicornis.     

S Higuchi  S Simomura  H Yoshida  F Hoshi  S Kawamura  Y Yasuda 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》1991,53(3):491-493

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Control of doublesex alternative splicing by transformer and transformer-2 in Drosophila   总被引：39，自引：0，他引：39  

K Hoshijima  K Inoue  I Higuchi  H Sakamoto  Y Shimura 《Science (New York, N.Y.)》1991,252(5007):833-836

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Asef, a link between the tumor suppressor APC and G-protein signaling     

Kawasaki Y  Senda T  Ishidate T  Koyama R  Morishita T  Iwayama Y  Higuchi O  Akiyama T 《Science (New York, N.Y.)》2000,289(5482):1194-1197

The adenomatous polyposis coli gene (APC) is mutated in familial adenomatous polyposis and in sporadic colorectal tumors. Here the APC gene product is shown to bind through its armadillo repeat domain to a Rac-specific guanine nucleotide exchange factor (GEF), termed Asef. Endogenous APC colocalized with Asef in mouse colon epithelial cells and neuronal cells. Furthermore, APC enhanced the GEF activity of Asef and stimulated Asef-mediated cell flattening, membrane ruffling, and lamellipodia formation in MDCK cells. These results suggest that the APC-Asef complex may regulate the actin cytoskeletal network, cell morphology and migration, and neuronal function.  相似文献   

Effects of low-crude protein diets supplemented with rumen-protected lysine and methionine on fattening performance and nitrogen excretion of Holstein steers     

Mitsuru Kamiya  Tomoya Yamada  Mikito Higuchi 《Animal Science Journal》2021,92(1):e13562

The objective of this experiment was to investigate the effects of low-crude protein (CP) diets supplemented with rumen-protected lysine and methionine on growth performance, nitrogen excretion, and carcass traits in Holstein steers. Steers consumed the following diets: (1) 17.2% CP on a dry-matter basis during the early period (from 7 to 10 months of age) and 14.5% CP during the late period (from 10 to 18 months of age; CON, n = 4, initial body weight [BW] 238 kg), and (2) 14.4% CP during the early period and 11.4% CP during the late period (AA, n = 4, initial BW 243 kg). The AA diet contains rumen-protected lysine and methionine. Except for CP intake, feed intake and body weight gain were not affected by dietary CP content. Total nitrogen excretion per metabolic BW tended to be lower (p < .10) in the early period and significantly lower (p < .05) in the late period with decreasing the feed CP content. Plasma urea nitrogen concentrations were lower in AA than CON. Carcass traits and total free amino acid contents of the longissimus thoracis muscle were not affected by dietary CP content. Adding rumen-protected lysine and methionine to a low-CP diet would reduce nitrogen excretion in fattening Holstein steers without affecting productivity.  相似文献   

Effect of dietary cobalt supplementation on the population growth of rotifer Brachionus rotundiformis     

Takao Yoshimatsu  Takahiro Higuchi  Dongming Zhang  Norma R. Fortes  Kenji Tanaka  Kenji Yoshimura 《Fisheries Science》2006,72(1):214-216

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Comparison of serum lipid compositions, lipid peroxide, alpha-tocopherol and lipoproteins in captive marine mammals (bottlenose dolphins, spotted seals and West Indian manatees) and terrestrial mammals     

Kasamatsu M  Kawauchi R  Tsunokawa M  Ueda K  Uchida E  Oikawa S  Higuchi H  Kawajiri T  Uchida S  Nagahata H 《Research in veterinary science》2009,86(2):216-222

Concentrations of serum lipid components, lipid peroxide (LPO) and α-tocopherol and electrophoretic patterns of lipoproteins in serum samples obtained from captive marine mammals and terrestrial mammals were compared. Serum concentrations of total cholesterol, free fatty acid, and phospholipid in fish-eating animals were significantly higher than those in manatees and cows. Serum LPO and α-tocopherol concentrations in the fish-eating animals were also significantly higher than those in manatees, cows and dogs. Different patterns of densitometric scans of low density lipoprotein (LDL) and a significantly lower percentage of LDL were demonstrated in the dolphins compared with the seals, cow and dogs. The concentration of LPO was significantly correlated with triglyceride and phospholipid concentrations in serum from the dolphins. These results suggest that triglyceride and phospholipid are susceptible to oxidative reaction in fish-eating animals. Evaluation of serum lipids, LPO and α-tocopherol concentrations is needed for nutritional husbandry for fish-eating animals.  相似文献   

Plasma LH, Ovulation and Conception Rates in Cats Mated Once or Three Times on Different Days of Oestrus     

T Tsutsui  C Higuchi  M Soeta  H Oba  T Mizutani  T Hori 《Reproduction in domestic animals》2009,44(S2):76-78

Although cats are induced ovulators, the relationship between the day of breeding, the number of matings and the likelihood of ovulation and conception have not been extensively investigated. In this experiment, cats were mated either once or three times on day 1 or day 5 of oestrus to study the incidence of the LH surge, ovulation and conception rates. The percentage ovulating and the conception rates after a single mating on day 1 of oestrus were 60% (6/10) and 33.3% (2/6), respectively, and for cats mated once on day 5 of oestrus were 83.3% (10/12) and 40% (4/10), respectively. When cats were mated three times on day 1 of oestrus, the ovulation rates and conception rates were 70% (7/10) and 85.7% (6/7), respectively, and for those mated three times on day 5 of oestrus were 100% (10/10) and 100% (10/10), respectively. The concentration of LH did not increase in non-ovulating cats, and cats that were mated three times had LH concentrations that were numerically higher than those that were mated once. Litter size was neither related to the day of mating nor to the number of matings. Although an increase in the number of matings on day 1 of oestrus produced a numerically larger LH surge, it did not increase the ovulation rate, suggesting that plasma oestradiol concentrations were not sufficiently elevated to induce a high pituitary response to mating stimulation. The conception rate after a single mating was low, suggesting that the number of sperm per mating was not sufficient. These results suggest that mating more than once in the middle of oestrus is required to improve ovulation rates and conception rates in cats.  相似文献   

Development of Babesia gibsoni in the midgut of larval tick, Rhipicephalus sanguineus.     

S Higuchi  M Izumitani  H Hoshi  S Kawamura  Y Yasuda 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》1999,61(6):689-691

Studies were made on the development of Babesia gibsoni in the midgut of the larval tick, Rhipicephalus sanguineus. Six hr after repletion, merozoites of B. gibsoni, freed from erythrocytes, were observed in the midgut contents of the tick. After that, within 24 hr, those merozoites were transformed into the ring-forms which were relatively large, 2-3 microns in diameter. Later, the ring forms developed into the spherical forms which were subelliptical in shape and 4-6 microns in diameter. Within 2-4 days, the elongated forms, 5-8 microns in length, were found. At this time, some of the binucleated fusion form has assumed a form intermediate between the spherical and elongated-forms. About 5-6 days after repletion, large round or elliptic zygotes, 8-10 microns in diameter, were observed in the tick gut.  相似文献