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71.
Yamashita K Fujiwara C Azuma R Sawazaki T Nakao Y Hasegawa A 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2002,64(8):673-676
Housedust mites, Dermatophagoides pteronyssinus (D. pteronyssinus) and Dermatophagoides farinae (D. farinae), are the important causative agents of allergic diseases in human and animals. By using 165 dogs suffering from atopic dermatitis (AD), serum levels of immunogloblin E (IgE) antibody against 25 kinds of allergen including housedust mites were determined. Housedust mites were the most frequent allergen against which 90 of the 165 allergic dogs (54.5%) by IMMUNODOT assay. With the further analysis of immunoblotting assay in the 90 dogs sensitized with housedust mites, antigenic proteins of housedust mites recognized by IgE antibodies were with the apparent molecular masses of 15, 76, 90, 98, and 170-kD. Among them, the 15-kD protein that might be identical to Group 2 antigens (Der f2, Der p2) was prominently observed (52/90). This study indicates that about a half of dogs with AD were sensitized to housedust mites, suggesting that Group 2 antigens of housedust mites may be a major allergen in canine AD. 相似文献
72.
A common approach to land use change analyses in multidisciplinary landscape-level studies is to delineate discrete forest
and non-forest or urban and non-urban land use categories to serve as inputs into sets of integrated sub-models describing
socioeconomic and ecological processes. Such discrete land use categories, however, may be inappropriate when the socioeconomic
and ecological processes under study are sensitive to a range of human habitation. In this paper, we characterize the spatial
dynamic distribution of humans throughout the forest landscape of western Oregon (USA). We develop an empirical model describing
the spatial distribution and rate of change in historic building densities as a function of a gravity index of development
pressure, existing building densities, slope, elevation, and existing land use zoning. We use the empirical model to project
changes in building densities that are applied to a 1995 base map of building density to describe future spatial distributions
of buildings over time. The projected building density maps serve as inputs into a multidisciplinary landscape-level analysis
of socioeconomic and ecological processes in Oregon's Coast Range Mountains.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
73.
Kobayashi S Sato R Aoki T Omoe K Inanami O Hankanga C Yamada Y Tomizawa N Yasuda J Sasaki J 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2008,70(5):429-435
Feline immunodeficiency virus (FIV) infection is characterized by chronic overactivation of immune and inflammatory system, resulting in anergic state and dysfunction of immune cells. Lactoferrin (LF), a glycoprotein present in exocrine secretions and neutrophils, plays an important role in host defense system. Our previous study showed that oral administration of bovine LF (bLF) suppressed oral inflammation, improved the clinical symptoms and decreased serum gamma-globulin as a marker of inflammation in FIV-infected cats with intractable stomatitis. The anti-inflammatory effect was partly involved in regulation of neutrophil function by bLF. In this study, to clarify the relationship between anti-inflammatory effects of bLF and peripheral blood mononuclear cells (PBMC), we examined the effect of bLF on proliferation, cell cycle progression and cytokine expression in mitogen-activated PBMC. MTT [3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyl tetrazolium bromide] assay showed that bLF inhibited the concanavalin A (ConA)-induced cell proliferation in FIV-infected cats with the asymptomatic carrier and AIDS-related complex (ARC) phase. Bovine LF restored ConA-induced cell cycle progression and resulted in suppression of the induced apoptosis in feline PBMC. Real-time RT-PCR showed that bLF suppressed ConA-induced expression of interferon-gamma and interleukin-2 in cells of the ARC group regardless of the time of its addition to the medium. These results suggest the hypothesis that therapy with bLF may have the potential to improve and protect functions of overactivated lymphocytes by modulating the cell proliferation, cell cycle and cytokines expression in cats in terminal stage of FIV infection. 相似文献
74.
Hitoshi Nakamura Shigeto Ohgake Norio Sahashi Nobuyuki Yoshikawa Takanori Kubono Tsuyoshi Takahashi 《Journal of Forest Research》1998,3(1):39-42
Seasonal variation of paulownia witches’-broom (PWB) phytoplasma within different organs (leaves, branch and trunk bark and
roots) in paulownia trees was investigated by the amplification of a PWB-specific DNA fragment by the polymerase chain reaction
(PCR). In leaf samples, PWB phytoplasma was first detected in June and the incidence gradually increased. On the other hand,
the PWB was detected at relatively low incidence in branch bark, trunk bark and roots and the incidence did not change among
seasons. A survey of PWB in 27 fields in the Tohoku district of Japan showed that malformed flower buds were observed in paulownia
trees in almost all of the fields. PWB-phytoplasma was also detected by PCR from paulownia trees in almost all of the fields
in Iwate and Fukushima Prefectures. The frequencies of trees in which phytoplasma was detected by PCR were higher than those
in which symptoms were observed. These results indicated that PCR amplification of a PWB-specific DNA fragment is an effective
tool for practical diagnose and that PWB is widely distributed in the Tohoku district of Japan. 相似文献
75.
Fisheries Science - Fisheries subsidies have attracted considerable attention worldwide since the 1990s. The World Trade Organization (WTO), among others, started to strengthen its disciplines in... 相似文献
76.
Tomoyoshi Yoshinaga Nobuyuki Tsutsumi Kathryn Ann Hall Kazuo Ogawa 《Fisheries Science》2009,75(5):1167-1176
In the mid-1990s, Neoheterobothrium hirame suddenly appeared as a new species in olive flounder Paralichthys olivaceus in Japanese coastal waters. Anemia caused by the parasite has prevailed in wild and cultured populations of olive flounder since that time. In this study, to clarify the origin of N. hirame, two Neoheterobothrium species, namely unidentified Neoheterobothrium species (tentatively abbreviated as Neoheterobothrium sp. PL) and N. affine, were collected from Paralichthys lethostigma and Paralichthys dentatus, respectively, off the east coast of North America and compared with N. hirame collected in Japan. No substantial differences were detected in the morphology and DNA sequences of ITS1-5.8S rRNA-ITS2 and mitochondrial cytochrome oxidase subunit I (mt COI) regions between N. hirame and Neoheterobothrium sp. PL. On the other hand, the congeneric N. affine was clearly distinguished from both N. hirame and Neoheterobothrium sp. PL in its longer isthmus and the DNA sequences in ITS1 and mt COI. The absence of differences between N. hirame and Neoheterobothrium sp. PL and the clear difference between both of these and N. affine indicate that N. hirame is conspecific with Neoheterobothrium sp. PL infecting P. lethostigma and that N. hirame was recently introduced from North America to Japan. 相似文献
77.
A cointegration analysis is conducted to examine the effect of fishery subsidies on fisheries production using data compiled
over more than 30 years in Japan. The results illustrate that one fishery production indicator (production value per fishermen)
shows a positive relationship with one particular group of government financial transfer (GFT) (that is, government general
service expenditures including cost for fishery managements, scientific researches, and other administrative activities).
No other tested results between GFTs and fishery indicators showed a real relationship. Although further scrutiny is awaited,
this study could provide an empirical basis for an argument that, under an effective fishing management system, fisheries
subsidies do not necessarily cause production increases or negative impact on fishing stocks. 相似文献
78.
Ikutaro Tsuyama Masahiro Horikawa Katsuhiro Nakao Tetsuya Matsui Yuji Kominami Nobuyuki Tanaka 《Journal of Forest Research》2012,17(2):137-148
The objective of this study was to identify climatic factors determining the distribution of a keystone understory taxon,
section Crassinodi of the genus Sasa, and assess the impacts of climate change on the taxon. Relationships between the distribution of sect. Crassinodi and five climatic variables were explored using classification tree analysis. Potential habitats under current climate and
future climate in 2081–2100 were predicted. Potential habitats were further divided into suitable and marginal habitats. The
predictive accuracy of the model was assessed using receiver operating characteristic analysis and by comparing model predictions
with an independent dataset. The model was reasonably accurate. It showed that the warmth index (WI) and snow cover were the
most important climatic variables for Crassinodi distribution. Potential habitats were limited to cooler regions with WI <102.7°C month. Suitable habitats were limited to
even cooler regions with WI <84.8°C month. The model also showed that areas with deeper snow than previously reported would
provide suitable habitats for Crassinodi under some climatic conditions. In 2081–2100, 37.4% of current potential habitats are predicted to become non-habitats because
of increases in WI. Most currently suitable habitats are predicted to vanish from western Japan by 2081–2100. Meanwhile, Hokkaido
and high-elevation areas of eastern Honshu will sustain suitable habitats. Sect. Crassinodi, which is adapted to less snowy climates, is predicted to be more affected by climate change than sect. Sasa and Macrochlamys, which are adapted to snowy climates. 相似文献
79.
Methane uptake and nitrous oxide emission in Japanese forest soils and their relationship to soil and vegetation types 总被引:1,自引:1,他引:1
Tomoaki MORISHITA Tadashi SAKATA Masamichi TAKAHASHI Shigehiro ISHIZUKA Takeo MIZOGUCHI Yoshiyuki INAGAKI Kazuhiko TERAZAWA Satoshi SAWATA Masanori IGARASHI Hiroshi YASUDA Yasuhiro KOYAMA Yoshihito SUZUKI Nobuyuki TOYOTA Masamichi MURO Masaru KINJO Hirokazu YAMAMOTO Daitaro ASHIYA Yoichi KANAZAWA Tetsu HASHIMOTO Hidetaka UMATA 《Soil Science and Plant Nutrition》2007,53(5):678-691
80.
Sugiyama M Goto K Uemukai H Mori Y Ito N Minamoto N 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2004,66(4):461-463
To determine the characters of receptors on target cells for avian rotaviruses, the receptors on MA104 cells for the pigeon rotavirus PO-13, the turkey rotaviruses Ty-1 and Ty-3, and the chicken rotavirus Ch-1 were analyzed. Pretreatment of MA104 cells with neuraminidase greatly reduced the infection by all of the four avian rotavirus strains. Binding of the cell-attachment protein, purified VP8 expressed in bacteria, of strain PO-13 to MA104 cells was also inhibited by pretreatment of cells with neuraminidase. These findings suggest that avian rotaviruses primarily utilize sialic acid-containing molecules as receptors on MA 104 cells. 相似文献