A Syndrome Resembling Idiopathic Noncirrhotic Portal Hypertension in 4 Young Doberman Pinschers   总被引：1，自引：0，他引：1  

JoAnn DeMarco  Sharon A. Center  Nathan Dykes  Amy E. Yeager  Bruce Kornreich  Ed Gschrey  Kelly A. Credille  Magali Guffroy  Fabio del  Piero Beth A. Valentine 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1998,12(3):147-156

We describe 4 young male Doberman Pinschers (3 littermates and 1 unrelated dog) with a syndrome resembling idiopathic or noncirrhotic portal hypertension of humans. Each dog was evaluated for a hepatopathy resulting in portal hypertension, development of portosystemic collateral vessels, and hepatic encephalopathy. These dogs differ from previous reports of young dogs with hepatic insufficiency associated with portal hypertension and acquired portal systemic shunting by their lack of intrahepatic arteriovenous fistulae, portal vein atresia, or intrahepatic fibrosis. Clinicopathologic features included erythrocyte microcytosis, normal to mildly increased liver enzyme activities, increased concentrations of serum bile acids, reduced plasma indocyanine green clearance, and normal total bilirubin concentration. Abdominal ultrasonography disclosed a small liver and portosystemic collateral vessels. Radiographic imaging studies confirmed hepatofugal portal circulation and discounted hepatic arteriovenous fistulae. Histopathologic features in liver tissue from each dog were similar and consistent in all sections examined. Common findings included increased cross-sectional views of hepatic arterioles; hepatic lobular atrophy; scanty increase in connective tissue around some large portal triads; and absence of inflammation, disturbed lobular architecture, bile duct proliferation, or intrahepatic cholestasis.  相似文献   

Neonatal Equine Herpesvirus Type 1 Infection on a Thoroughbred Breeding Farm   总被引：2，自引：0，他引：2  

Michael J. Murray  Fabio del  Piero  Stuart C. Jeffrey  Michael S. Davis  Martin O. Furr  Edward J. Dubovi  John A. Mayo 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1998,12(1):36-41

Of 17 foals born on a Thoroughbred breeding farm between March and April 1995, infection with equine herpesvirus type 1 (EHV-1) was associated with neonatal morbidity in 5 foals, 3 of which died or were euthanized. Morbidity and mortality were associated with pulmonary inflammation, and EHV-1 was identified in the lungs of the 3 foals that died. All neonatal EHV-1 infections occurred in foals of mares housed in the same pasture and barn. No other clinical manifestations of EHV-1 infection (eg, abortion, neurologic disease, or respiratory disease) occurred during this outbreak. Three foals were treated with acyclovir (1 died, 2 survived), which may have influenced the clinical outcome in the surviving foals.  相似文献   

THE FIRST LAW OF FLUORESCENCE     

DE Ment J 《Science (New York, N.Y.)》1942,96(2485):157-158

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Editorial     

S.J. DE GROOT  R.J. ROBERTS 《Aquaculture Research》1997,28(9):649-649

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Facilitated ankylosis for treatment of septic arthritis of the distal interphalangeal joint in a Ilama     

JD LILLICH  DE ANDERSON 《Australian veterinary journal》1997,75(9):636-638

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A comparative study of serum kinetics of oxytetracycline in pigs and calves following intramuscular administration     

A. DE L. BANTING  M. DUVAL  S. GREGOIRE 《Journal of veterinary pharmacology and therapeutics》1985,8(4):418-420

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噬菌体复合制剂对肉鸡生长性能、免疫功能、肠道形态及肠道菌群的影响     

朱树娇  张辉  周艳  董俊  德艳艳  张永柱  仲召鑫  王冉  包红朵 《动物营养学报》2022,34(5):2928-2939

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多年生人工草地矮生嵩草(Kobresia humilis)种群空间格局与种内关联性     

邢云飞  施建军  德科加  王伟  王晓丽  唐俊伟  李思瑶 《草地学报》2022,30(2):253-258

植物种群空间分布格局不仅反映植物的空间分布特点,还有助于研究者了解植物利用资源的现状和生存能力。本研究以矮生嵩草(Kobresia humilis)为研究对象,按株丛斑块面积将矮生嵩草分为小斑块级株丛(0～30 cm²)、中斑块级株丛(30～80 cm²)和大斑块级株丛(>80 cm²)3个株丛级,采用点格局分析的g函数统计方法,分析了矮生嵩草各级株丛的空间格局及关联性。结果表明：矮生嵩草种群中小斑块级株丛占比高于中斑块、大斑块级株丛占比,种群中幼苗充足,正处于稳定的增长阶段;矮生嵩草小斑块、中斑块、大斑块级株丛在小尺度范围内表现为聚集分布,随着尺度的增大,所有株丛斑块的聚集程度减弱,逐渐趋向于随机分布;小斑块与中斑块、大斑块的矮生嵩草株丛在小尺度内表现为正关联。斑块聚集分布和相互共存是矮生嵩草的一种生存策略。  相似文献   

氮、磷添加对青藏高寒草甸土壤碳氮磷化学计量特征影响的Meta分析     

林伟山  德科加  张琳  向雪梅  冯廷旭  钱诗祎  魏希杰  耿晓平 《草地学报》2022,30(12):3345-3354

为了解青藏高原高寒草甸土壤碳(Carbon,C)、氮(Nitrogen,N)、磷(Phosphorus,P)化学计量特征对氮、磷添加的响应,提高养分管理水平及草地生态系统的养分平衡。本研究严格筛选出21篇文章(612项数据)进行Meta分析,通过亚组分析分析了不同施肥方式(氮添加、磷添加、氮磷添加)、不同施肥强度(轻度、中度、重度)对青藏高原草地土壤C,N,P化学计量特征的影响。研究结果表明：养分添加显著增加了青藏高原草地土壤C,N,P含量;氮添加对土壤的增加效应随施肥强度增加而增加,磷轻度施肥(20g·m^-2以下)处理、氮磷添加轻度施肥处理下的土壤C,N,P含量及化学计量比增加效果最好。本研究结果总体反映出氮、磷添加对青藏高原高寒草甸土壤产生积极影响,研究结果可为青藏高原草地生态系统的保护提供科学依据。  相似文献   

Phenological investigations of different winter-deciduous species growing under Mediterranean conditions     

Fabio Orlandi  Tommaso Bonofiglio  Luigia Ruga  Carlo Sgromo  Bruno Romano  Marco Fornaciari 《Annals of Forest Science》2007,64(5):557-568

Phenological stages are the result of biorhythms and environmental factors, these last are probably the same ones that caused, during evolution, adjustments of the species to different climate. The present study was carried out in a Phenological Garden located in central Italy (Perugia, Umbria Region) which contains indicator species, common to all International Phenological Gardens. The aim of this study was to determine and analyse the average trends of development of eight plant species and their phenological adjustment to the Mediterranean environment, over a nine-year period (1997–2005). The results of the statistical analyses show a strong relationship between the temperature trends and vegetative seasonal evolutions interpreted by phenological data for all the species considered. Moreover, it was demonstrated that the plants studied may approach or close completely the timing gaps eventually created during the first phenological phases, adjusting thus the beginning of subsequent phenophases.  相似文献