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1.
采用聚丙烯烯酰胺凝胶电泳法对５８峰青海双峰驼的红细胞和血清乳酸脱氢酶（ＬＤＨ）以及红细胞超氧化物歧化酶（ＳＯＤ）同工酶酶谱进行了分析和研究，结果：（１）ＳＬＤＨ同工酶酶谱存在年龄差异，成年驼只有ＬＤＨ１同工酶，幼年驼酶谱由ＬＤＨ１，ＬＤＨ２，ＬＤＨ３和ＬＤＨ４组成；（２）ＲＢＣ－ＬＤＨ同工酶由ＬＤＨ１，ＬＤＨ２和ＬＤＨ４组成；（２）ＲＢＣ－ＬＤＨ同工酶由ＬＤＨ１，ＬＤＨ２和ＬＤＨ３组成，其活性强于  相似文献   

2.
采用聚丙烯酰胺凝胶电泳法对２只兔狲的４种血液蛋白质表型和３种血液同工酶酶谱进行研究。结果发现：①被检兔狲的血红蛋白（ＨＢ），白蛋白（ＡＬＢ）和后白蛋白（Ｐａ）分别呈单一的ＨＢＡＢ，ＡＬＢＡＡ和ＰａＡＡ型，运铁蛋白（ＴＦ）有ＴＦＡＢ和ＴＦＢＢ两种表型；②血清碱性磷酸酶（ＡＬＰ）由ＡＬＰＡ，ＡＬＰＢ，ＡＬＰＣ和ＡＬＰＤ四种同工酶组成；③血清酯酶（ＥＳ）由ＥＳＩ和ＥＳＩＶ两种同工酶共７条区带组成；④血清乳酸脱氢酶（Ｓ－ＬＤＨ）由ＬＤＨ１，ＬＤＨ２，ＬＤＨ３，ＬＤＨ４和ＬＤＨ５五种同工酶组成，红细胞内只有前四种ＬＤＨ同工酶。  相似文献   

3.
青海细毛羊红细胞乳酸脱氢酶同工酶的研究   总被引：2，自引：0，他引：2  
采用聚丙烯酰胺凝胶电泳法对１１０只青海细毛羊的红细胞乳酸脱氢酶（ＲＢＣ－ＬＤＨ）同工酶酶谱及其多态性进行了研究。结果发现：青海细毛羊ＲＢＣ－ＬＤＨ同工酶总共有１２条区带；第１条区带“１－Ａ”的电泳迁移率为５５．５％，第１２条区带“１１”的电泳迁移率为９５．０％；ＲＢＣ－ＬＤＨ有两种电泳表型，１０８只羊为Ｉ型，占９８．２％，２只羊为Ⅱ型，占１．８％；ＲＢＣ－ＬＤＨ１型尚可区分为两个亚型：Ｉ－ＢＢ型和  相似文献   

4.
采用聚丙烯酰胺凝胶电泳法对２１条藏獒的红细胞乳酸脱氢酶（ＲＢＣ－ＬＤＨ）和血清到脱氢酶（Ｓ－ＬＤＨ）同工酶酶谱及其多态性进行研究。结果发现：（１）ＲＢＣ－ＬＤＨ同工酶共有３条区带,呈现两种电泳表型,１１条藏契为ＬＤＨ２Ａ型（５７．８９％）,８条藏獒为ＬＤＨ２ａ（４２．１１％）,（２）Ｓ－ＬＤＨ共有５条区带,呈现两种电泳表型,２条藏獒为ＬＤＨ１Ａ（９．５２％）,１９条藏獒为ＬＤＨ１ａ（９０．４８％）  相似文献   

5.
黑白花奶牛LDH同工酶的发育遗传学分析   总被引：1，自引：0，他引：1  
黑白花奶牛血清ＬＤＨ同工酶以Ｂ型酶占相对优势（５８．７％－９２．０％），ＬＤＨ总活力以及各同工酶的表现形式和Ａ、Ｂ两亚基的表达程度随机体生理状态的改变和个体生长发育阶段的不同而有变动。它们的这种表达特征是Ｉｄｈ ａ和Ｉｄｈ ｂ两基因实施调控的结果，与奶牛代谢过程中的能量需求相适应。  相似文献   

6.
东方铃蟾乳酸脱氢酶多态性研究   总被引：1，自引：0，他引：1  
采用聚丙烯酰胺凝胶电泳分离东方铃蟾不同组织ＬＤＨ同工酶，显示出典型的５条带谱。心肌具有以Ｂ亚基为主的ＬＤＨ同工酶谱，骨骼肌以Ａ亚基为主的ＬＤＨ同工酶谱。用改进后的聚丙烯酰胺凝胶电泳方法进行种群调查，结果表明Ａ位点和Ｂ位点都存在电泳上的变异，各存在二个等位基因。Ａ位点有三个基因型，其频率；ＡＡ＝５３．４７％．Ａａ＝３９．１１％．ａａ＝７．４３％；Ｂ位点只检出二个基因型，即ＢＢ为９９．５０％，Ｂｂ为０．５０％。  相似文献   

7.
西藏牦牛血清乳酸脱氢酶H亚基的遗传变异体   总被引：10，自引：0，他引：10  
采用聚丙烯酰胺凝胶电泳分析西藏嘉黎和亚东地区８５头牦牛血清乳酸脱氢酶（ＬＤＨ）同工酶。结果显示，牦牛血清ＬＤＨ同工酶具有ＬＤＨ１￣ＬＤＨ５五种形式，ＬＤＨ的Ｈ亚基存在Ａ、Ｂ、Ｃ三种遗传变异体，Ｃ型遗传变异体平均占８２．３５％。值得注意的是，嘉黎地区具有Ａ或Ｂ型Ｈ亚型的牦牛血清中ＬＤＨ２的相对活力显著低于具有Ｃ型Ｈ亚基的牦牛，其机制和意义有待进一步研究。  相似文献   

8.
用聚丙烯酰胺凝胶电泳对蛭形巨吻棘头虫（Ｍａｃｒａｃａｎｔｈｏｒｈｙｎｃｈｕｓｈｉｒｕｄｉｎａｃｅｕｓ）雄虫、雌虫体液和宿主（猪）血清的ＬＤＨ同工酶的酶谱、相对迁移率和相对活性等进行比较表明，雄虫有３条酶带和雌虫有２条酶带显示出很强的特异性；不同浓度的抑制剂（硝硫氰醚）对雄虫和雌虫特有的ＬＤＨ同工酶酶带活性具有不同程度的抑制作用，尤其是雌虫第２带对抑制剂最敏感。蛭形巨吻棘头虫体液具有特异的且不同于宿主（猪）血清ＬＤＨ１～５的ＬＤＨ同工酶酶带，特有的ＬＤＨ同工酶可能由４条不同的区带组成。  相似文献   

9.
牦牛卵泡液LDH同工酶及外源性激素对其表达模式的影响   总被引：1，自引：0，他引：1  
采用比色法和不连续缓冲系统的聚丙烯酰胺凝胶电泳（ＰＡＧＥ）技术对未孕和怀孕初期牦牛卵泡液乳酸脱氢酶（ＬＤＨ）活性及同工酶进行了测定，并分析了促卵泡素３号（ＬＲＨ－Ａ３）、人绒毛膜促性腺激素（ｈＣＧ）和孕马血清促性腺激素（ＰＭＳＧ）对其表达模式的影响。结果表明，未孕和怀孕初期牦牛卵泡液ＬＤＨ活性分别为２００．４±３１．１，２１５．３±８６．６μｍｏｌ·ｓ－１·Ｌ－１，同工酶有５条谱带。３种外源性激素均使牦牛卵泡液ＬＤＨ活性显著升高（Ｐ＜０．０１），ＬＤＨ同工酶带型分布发生变化，降低了ＬＤＨ２／ＬＤＨ１比值，改变了同工酶中Ａ和Ｂ亚基所占比例  相似文献   

10.
应用聚丙烯酰胺凝胶电泳法对猪和绵羊的心、肝、脾、肺、肾、胰、小肠７种组织器官及血清的乳酸脱氢酶同工酶酶谱进行比较研究，结果发现：①猪和绵羊各组织器官中ＬＤＨ同工酶共有５种区带，猪的ＬＤＨ３同工酶还可分为两条亚带；②猪和绵羊的肺、肾、小肠、胰、血清中ＬＤＨ区带数相同，其它组织器官各不相同；③猪和绵羊ＬＤＨ１同工酶的泳动速度最快，迁移率分别为５３．６４％、４１．８２％；ＬＤＨ５同工酶的泳动速度最慢，迁  相似文献   

11.
试验选用96头平均体重14.82 kg左右的杜×长×大断奶仔猪,随机分成4组,每组3栏,每栏8头(公母各半)。对照组饲喂基础日粮,试验1、2、3组分别添加1%80目白术、0.2%白术多糖和1%微米白术。试验期30 d。结果表明:在生长性能方面,与对照组相比,1%微米白术添加组可显著提高日增重(P0.05)、降低饲料增重比和腹泻率,而且效果优于1%80目白术组和0.2%白术多糖组,在肠道形态和肠道微生态区系方面,与对照组相比,日粮添加1%80目白术、0.2%白术多糖、1%微米白术均可不同程度的提高十二指肠和空肠的绒毛高度,加深十二指肠和空肠的隐窝深度,并且增加肠道微生态区系的多样性,其中以1%微米白术添加组的效果最佳。  相似文献   

12.
Sissay, M.M., Uggla, A. and Waller, P.J., XXXX. Prevalence and seasonal incidence of nematode parasites and fluke infections of sheep and goats in eastern Ethiopia. Tropical Animal Health and Production, XXXX. A 2-year abattoir survey was carried out to determine the prevalence, abundance and seasonal incidence of gastro-intestinal (GI) nematodes and trematodes (flukes) of sheep and goats in the semi-arid zone of eastern Ethiopia. During May 2003 to April 2005, viscera including liver, lungs and GI tracts were collected from 655 sheep and 632 goats slaughtered at 4 abattoirs located in the towns of Haramaya, Harar, Dire Dawa and Jijiga in eastern Ethiopia. All animals were raised in the farming areas located within the community boundaries for each town. Collected materials were transported within 24 h to the parasitology laboratory of Haramaya University for immediate processing. Thirteen species belonging to 9 genera of GI nematodes (Haemonchus contortus, Trichostrongylus axei, T. colubriformis, T. vitrinus, Nematodirus filicollis, N. spathiger, Oesophagostomum columbianum, O. venulosum, Strongyloides papillosus, Bunostomum trigonocephalum, Trichuris ovis, Cooperia curticei and Chabertia ovina), and 4 species belonging to 3 genera of trematodes (Fasciola hepatica, F. gigantica, Paramphistomum {Calicohoron} microbothrium and Dicrocoelium dendriticum) were recorded in both sheep and goats. All animals in this investigation were infected with multiple species to varying degrees. The mean burdens of adult nematodes were generally moderate in both sheep and goats and showed patterns of seasonal abundance that corresponded with the bi-modal annual rainfall pattern, with highest burdens around the middle of the rainy season. In both sheep and goats there were significant differences in the mean worm burdens and abundance of the different nematode species between the four geographic locations, with worm burdens in the Haramaya and Harar areas greater than those observed in the Dire Dawa and Jijiga locations. Similar seasonal variations were also observed in the prevalence of flukes. But there were no significant differences in the prevalence of each fluke species between the four locations. Overall, the results showed that Haemonchus, Trichostrongylus, Nematodirus, Oesophagostomum, Fasciola and Paramphistomum species were the most abundant helminth parasites of sheep and goats in eastern Ethiopia.  相似文献   

13.
Tropical Animal Health and Production -  相似文献   

14.
1-(2-Chloroethyl)3-cyclohexyl-1-nitrosourea (CCNU) is an alkylating agent in the nitrosourea subclass. A prospective evaluation of CCNU was done to determine the maximally tolerated dosage of CCNU in tumor-bearing cats. Response data were obtained when available. Twenty-five cats were treated with CCNU at a dosage of 50-60 mg/m3 body surface area. Complete hematologic data were available for 13 cats. Neutropenia was the acute dose-limiting toxicity. The median neutrophil count at the nadir was 1,000 cells/microL (mean, 2,433 cells/microL; range, 0-9,694 cells/microL). The time of neutrophil nadir was variable, occurring 7-28 days after treatment, and counts sometimes did not return to normal for up to 14 days after the nadir. Based on these findings, a 6-week dosing interval and weekly hematologic monitoring after the 1st treatment with CCNU are recommended. The nadir of the platelet count may occur 14-21 days after treatment. The median platelet count at the nadir was 43,500 cells/microL. No gastrointestinal, renal, or hepatic toxicities were observed after a single CCNU treatment, and additional studies to evaluate the potential for cumulative toxicity should be performed. Five cats with lymphoma and 1 cat with mast cell tumor had measurable responses to CCNU. Phase II studies to evaluate antitumor activity should be completed with a dosing regimen of 50-60 mg/m3 every 6 weeks.  相似文献   

15.
Our particular attention in this article was given to natural mediators for macrophages isolated from the sites of tissue injury. A number of chemotactic factors, which may satisfy many criteria making them acceptable as inflammatory leucocyte chemotactic factors, has been separated. Among them, our laboratory has isolated three macrophage (monocyte) chemotactic factors (MCF-a, -b and -c). Their purification, characterization and functional specificity are discussed.  相似文献   

16.
Human and equine athletes are reported to have a high prevalence of gastric disease, and anecdotal evidence suggests a similar phenomenon applies to racing sled dogs. To investigate the prevalence of gastric disease in racing sled dogs, we conducted 2 gastroscopy studies on dogs competing in the annual Iditarod Sled Dog Race. A pilot study of dogs that were either dropped from the 2000 Iditarod Sled Dog Race because of illness or that finished the race indicated that, approximately 5 days after competing, 10 of 28 dogs (35%) had endoscopic evidence of gastric ulceration, erosion, or hemorrhage. The next year, an endoscopic study of 73 dogs participating in the 2001 Iditarod race was performed in order to evaluate a larger population of dogs. Data from 70 of these dogs could be used; 34 (48.5%) had ulceration, erosion, gastric hemorrhage, or some combination of these findings. When this group of 70 dogs was compared retrospectively to a control group of 87 dogs presented to the Texas A&M University (TAMU) Veterinary Medical Teaching Hospital, the Iditarod sled dogs had a significantly higher prevalence (P = .049) of gastric lesions. These findings suggest that, similar to athletes of other species, elite canine athletes have an increased prevalence of gastric disease compared to the canine population at large.  相似文献   

17.
Continuous rate infusion (CRI) of furosemide in humans is considered superior to intermittent administration (IA). This study examined whether furosemide CRI, compared with IA, would increase diuretic efficacy with decreased fluid and electrolyte fluctuations and activation of the renin-angiotensin-aldosterone system (RAAS) in the horse. Five mares were used in a crossover-design study. During a 24-hour period, each horse received a total of 3 mg/kg furosemide by either CRI (0.12 mg/kg/h preceded by a loading dose of 0.12 mg/kg IV) or IA (1 mg/kg IV q8h). There was not a statistically significant difference in urine volume over 24 hours between methods; however, urine volume was significantly greater after CRI compared with IA during the first 8 hours ([median 25th percentile, 75th percentile]: 9.6 L [8.9, 14.4] for CRI versus 5.9 L [5.3, 6.0] for IA). CRI produced a more uniform urine flow, decreased fluctuations in plasma volume, and suppressed renal concentrating ability throughout the infusion period. Potassium, Ca, and Cl excretion was greater during CRI than IA (1,133 mmol [1.110, 1,229] versus 764 mmol [709, 904], 102.7 mmol [96.0, 117.2] versus 73.3 mmol [65.0, 73.5], and 1,776 mmol [1,657, 2.378] versus 1,596 mmol [1,457, 1,767], respectively). Elimination half-lives of furosemide were 1.35 and 0.47 hours for CRI and IA, respectively. The area under the excretion rate curve was 1,285.7 and 184.2 mL x mg/mL for CRI and IA, respectively. Furosemide CRI (0.12 mg/kg/h) for 8 hours, preceded by a loading dose (0.12 mg/kg), is recommended when profound diuresis is needed acutely in horses.  相似文献   

18.
Genetic variations in chromosome Y are enabling researchers to identify paternal lineages, which are informative for introgressions and migrations. In this study, the male‐specific region markers, sex‐determining region‐Y (SRY), amelogenin (AMELY) and zinc finger (ZFY) were analysed in seven Turkish native goat breeds, Angora, Kilis, Hair, Honaml?, Norduz, Gürcü and Abaza. A SNP in the ZFY gene defined a new haplotype Y2C. All domestic haplogroups originate from Capra aegagrus, while the finding of Y1A, Y1B, Y2A and Y2C in 32, 4, 126 and 2 Turkish domestic goats, respectively, appears to indicate a predomestic origin of the major haplotypes. The occurrence of four haplotypes in the Hair goat and, in contrast, a frequency of 96% of Y1A in the Kilis breed illustrate that Y‐chromosomal variants have a more breed‐dependent distribution than mitochondrial or autosomal DNA. This probably reflects male founder effects, but a role in adaptation cannot be excluded.  相似文献   

19.
The objective of this report was to characterize 20-year changes in proportion of calcium oxalate (CaOx) calculi and struvite calculi in dogs, and associations with breed, age, and sex. In this retrospective study, results of analysis of urinary calculi from dogs were reviewed for specimens received between July 1, 1981, and December 31, 2001. Breed, sex, age, year of submission of the specimen, and mineral type(s) were analyzed statistically. CaOx or Struvite or both were contained in 18,966 of 20,884 (91%) specimens. For both sexes, a 20-year statistically significant increase was observed in the proportion of calculus specimens that contained CaOx. The increase in this proportion was greater in females (1% to 31%) than in males (18% to 82%). From 1998 to 2001, when proportions may have plateaued, the odds of specimens containing CaOx were markedly higher in 18 breeds, markedly lower in 5 breeds, and not significantly different in 13 breeds compared with crossbreds. For both sexes, a 20-year statistically significant decrease was observed in the proportion of calculus specimens that contained struvite. This decrease in proportion was greater for males (79-16%) than for females (97-68%). From 1998 to 2001, when proportions plateaued, the odds of calculi containing struvite were markedly lower in 20 breeds, markedly higher in 1 breed, and not significantly different in 15 breeds when compared with crossbreds. Breed, age, and sex were associated statistically with CaOx or struvite urolithiasis. In conclusion, there appears to have been a long-term increase in the proportion of specimens of canine urinary calculi that contain CaOx as well as a long-term decrease in the proportion of specimens of calculi that contain struvite for both male and female dogs. The rate of change appeared to begin leveling off in the period 1998 to 2001. The recent proportion of dogs with either CaOx- or struvite-associated urolithiasis may depend on breed, age, and sex, and on interactions among these 3 factors.  相似文献   

20.
<正>1.INTRODUCTION Ensuring transportation network security is one Of the most daunting challenges confronting homeland security agencies today.Significant research has been dedicated.To model and analyze the vulnerability of transportation systems,while notably fewer studies propose specific strategies for deploying defensive technologies to safeguard these systems.  相似文献   

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