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Huseyin Yilmaz Eda Altan Nuri Turan Aydin Gurel Damla Haktanir Kivilcim Sonmez Sezgin Deniz Ahmet Gulcubuk Emre Gur Gunes Sonmez Juergen A. Richt 《Journal of Equine Veterinary Science》2012
There has been an increase in outbreaks of neuropathogenic equine herpesvirus-1 (EHV-1) in the United States and Europe. However, the presence and frequency of neuropathogenic EHV-1 in Turkish horses are not known at present. This study aimed to investigate the frequency of EHV-1 and neuropathogenic strains of EHV-1 in the Marmara Region of Turkey. Samples were analyzed for the presence of EHV-1 and neuropathogenic EHV-1 by real-time PCR TaqMan probe assays. Overall detection rate of EHV-1 was 45.5% (51 of 112). The detection rates were 70.5% (24 of 34) in aborted fetuses, 53.3% (8 of 15) in neonatal deads, 66.6% (4 of 6) in foals, 40% (2 of 5) in dead mares, and 25% (13 of 52) in living mares. Overall detection rate of neuropathogenic EHV-1 was 7.8% (4 of 51), and the real-time PCR results were confirmed by sequencing. Neuropathogenic strains of EHV-1 were detected in the brain and lung of two mares with neurological disease but without a history of abortion, in the brain of a foal that died of respiratory disorder, and in the nasal swab from a mare with a history of abortion. On histopathology, nonpurulent meningoencephalitis, hemorrhages, and vasculitis were seen in the brain. In conclusion, results of this study indicated, for the first time, that the neuropathogenic EHV-1 is circulating in the Marmara Region of Turkey. The results of this study also show that the current risk for non-neuropathogenic strains is high, whereas risk for the neuropathogenic EHV-1-G2254 strain seems to be low. As outbreaks of EHV-1 continue in the Marmara region of Turkey, surveillance for neuropathogenic EHV-1 genotype should be maintained. 相似文献
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怀孕后期绵羊及其胎儿血液pH值气体张力和某些代谢物含量的研究 总被引：1，自引：0，他引：1
毛鑫智 《南京农业大学学报》1986,(1)
选用10只怀单羔的威尔士山地种绵羊,在怀孕111—117天期间装置胎儿后肢动、静脉痿管和母羊股动脉痿管。每天采集血样,测定血液pH、O_2和CO_2张力、红细胞压积(PCV)、血红蛋白(Hb)和O_2饱和度以及血浆葡萄糖、乳酸和α-氨基氮含量。 结果表明:绵羊在怀孕115天至分娩(140.33±4.32天)期间,血液pH值母羊为7.491±0.036,胎儿7.342±0.024;O_2张力(mmHg):母羊85.653±6.932,胎儿21.273±3.275:CO_2张力(mmHg):母羊31.454±2.490,胎儿44.579±4.705;PCV(％):母羊29.294±2.565,胎儿32.196±3.874;Hb(g/100m1):母羊9.508±0.852,胎儿9.513±1.100;O_2饱和度(％):母羊96.664±2.040,胎儿56.661±10.049;血浆葡萄糖含量(mg/100ml):母体66.20±7.87,胎儿12.36±2.22;血浆乳酸含量(mg/100ml):母羊4.709±1.553,胎儿15.468±5.815:α-氨基氮含量(mM/L):母羊3.203±0.432,胎儿4.750±0.667。除Hb含量母羊与胎儿无显著差异(P>0.5)外,其他指标均差异显著(P<0.01)。 文章还对实验方法、胎盘机能、胎儿与母体通过胎盘的物质交换以及胎儿代谢的某些特点进行了讨论。 相似文献
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John J. Lal C. V. Sreeranjit Kumar M. V. Suresh M. Indira P. L. Vijayammal 《Plant foods for human nutrition (Dordrecht, Netherlands)》1997,50(1):71-79
The objective of this study was to determine the effects of an alcoholic beverage (Toddy) and the equivalent quantity of ethanol
on carbohydrate metabolism in utero. Female rats were exposed to Toddy from coconut palm (24.5 ml/kg body weight/day) and
ethanol (0.52 ml/kg body weight/day) for 15 days before conception and throughout gestation. On the 19th day of gestation,
hypoglycemia was seen in both the treated groups, but it was more in the Toddy-treated group. Synthesis of glycogen was elevated
on exposure to ethanol/Toddy but its degradation was enhanced only in alcohol-exposed rats. Key enzymes of citric acid cycle
and gluconeogenesis were inhibited on administration of both alcohol and Toddy. Activity of glycolytic enzymes were increased.
Toddy seemed to potentiate the toxicity induced by alcohol, indicating the additive effects of congeners. 相似文献
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About 30% of U.S. women of reproductive age are obese, a condition linked to offspring obesity and diabetes. This study utilized an ovine model of maternal obesity in which ewes are overfed to induce obesity at conception and throughout gestation. At mid-gestation, fetuses from these obese ewes are macrosomic, hyperglycemic, and hyperinsulinemic, and they exhibited markedly increased pancreatic weight and β-cell numbers compared with fetuses of ewes fed to requirements. This study was conducted to establish fetal pancreatic phenotype and function in late gestation and at term in this ovine model. Multiparous ewes were fed a control (C, 100% National Research Council [NRC] recommendations) or obesogenic (OB, 150% NRC) diet from 60 days before conception to necropsy at day 135 of gestation or to lambing. No differences were observed in fetal size or weight on day 135 or in lamb birth weights between C and OB ewes. In contrast to our previously published results at mid-gestation, pancreatic weights (P < 0.01) and β-cell numbers (P < 0.05) of OB fetuses were markedly lower than those from C fetuses, whereas the β-cell apoptotic rate was increased (P < 0.05) in day 135 OB versus C fetuses. At birth, blood insulin concentration was lower (P < 0.05) and glucose level was higher (P < 0.05) in newborn lambs from OB versus C ewes. These data demonstrate differential impacts of maternal obesity on fetal pancreatic growth and β-cell numbers during early and late gestation. During the first half of gestation there was a marked increase in pancreatic growth, β-cell proliferation, and insulin secretion, followed by a reduction in pancreatic growth and β-cell numbers in late gestation, resulting in reduced circulating insulin at term. It is speculated that the failure of the pancreas to return to a normal cellular composition and function postnatally could result in glucose/insulin dysregulation, leading to obesity, glucose intolerance, and diabetes in postnatal life. 相似文献
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