蛭形巨吻棘头虫的LDH同工酶

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。     

蛭形巨吻棘头虫与宿主猪的五种同工酶比较研究

蛭形巨吻棘头虫与宿主猪的五种同工酶比较研究廖党金，官国均（四川省畜牧兽医医研究所）蛭形巨吻棘头虫（Ｍａｃｒａｃａｎｔｈｏｒｈｙｎｃｈｕｓｈｉｒｕｄｉｕａｃｅｕｓ）病是一种人畜共患病，是危害猪的严重寄生虫病之一，在牧区或半牧区猪感染率很高［１］，因虫体...     

硝硫氰醚防治猪巨吻棘头虫病

2 0 0 1～ 2 0 0 3年在四川省洪雅县从 5乡 1 1村 30 1 1家养猪农户中选 75 2 8头 5 0 kg架子猪进行猪蛭形巨吻棘头虫病治疗试验。共分 3批试验。第 1批是类检选出 30头棘头虫病阳性猪。 1 0头不服药对照。 2 0头服硝硫氰醚2 0 m g/ kg,隔 1天 1次 ,共服 3次。 2 0天后粪检 EPG,服药组 EPG均明显减少 5 0 .6 %～ 1 0 0 %。 5个月后称重。服药组猪平均比对照组猪增重 2 5 .6 kg/只。第 2、3批作普治试验 ,共治疗 4 2 6 8头架子猪     

黑龙江省八种两栖动物乳酸脱氢酶同工酶研究

用聚丙烯酰胺凝胶电泳方法，结合尿素抑制和热稳定性实验，对黑龙江省八种两栖动物６种组织中ＬＤＨ同工酶分析，结果表明：这八种两栖动物ＬＤＨ同工酶是由２个基因座位编码；所分析的ＬＤＨ同工酶对热稳定性和对尿素抑制敏感性没有像哺乳动物ＬＤＨ同工酶性质那么有规律。并认为其它几种林蛙ＬＤＨ同工酶谱可能也具有缺失第２区带典型的４个谱带分布类型。     

猪和绵羊组织器官乳酸脱氢酶同工酶酶谱比较

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     

青海细毛羊红细胞乳酸脱氢酶同工酶的研究

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     

猪血清乳酸脱氢酶与日增重相关关系的研究

选择新疆瘦肉型猪新产品种四世代育种群、长大新、汉普夏、加系大长白四类群共４９头猪试验,采用电泳法测定血汪中乳酸脱氢酶（ＬＤＨ）同工酶的相对含量,分析它们与日增重的相关关系。结果表明,７０日龄血清中ＬＤＨ存在五种同工酶,它们之间相对含量差异显著（Ｐ〈０．０５）;７０日龄血清ＬＤＨ１、ＬＤＨ２含量分别与７０￣１３０日龄日增重、１３０￣１８０日龄日增重之间存在显著正相关（Ｐ〈０．０５）;其他型与日增重相     

青海双峰驼血液LDH和SOD同工酶酶谱

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     

牦牛卵泡液LDH同工酶及外源性激素对其表达模式的影响

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     

猪棘头虫病的防治

<正>猪棘头虫病是由猪棘头虫寄生在猪小肠内所引起的寄生虫病。本病分布广泛,常呈地方性流行,严重影响猪的正常生长发育,甚至造成死亡。1形态及生活史猪棘头虫虫体比蛔虫大,黄白色,前部稍粗大,有一吻突,长有5~6列向后弯曲的小钩,虫体后部比较细,表皮上有明显的环状皱纹。雄虫和雌虫区别明显,雄虫体短小,长7~15厘米,雌虫体长30~68厘米,虫卵随粪便排出体外,被昆虫的幼虫吞食后,就在其体内发育为感染性幼虫。当猪吞食了含有感染     

Lactate dehydrogenase and creatine phosphokinase isoenzymes in tissues of laboratory animals

The lactate dehydrogenase (LDH) and creatine phosphokinase (CPK) isoenzyme distributions in tissues of the ICR mouse, Wistar rat, guinea pig and golden hamster were analyzed by histoelectrophoresis. Tissues obtained were as follows: liver, pancreas, stomach, small intestine, heart, femoral muscle, uterus, kidney, spleen, lymph node, cerebrum, spinal cord and erythrocyte. Histoelectrophoresis was for the direct analysis of LDH and CPK isoenzymes in the tissues and had high practical value compared with previous tissue-extraction methods. In tissues of the mouse, guinea pig and golden hamster, LDH isoenzymes showed five bands. In the rat, LDH isoenzyme was separated into four fractions. CPK isoenzyme showed three bands; BB, MB and MM. In some tissues, the MM band was separated into two sub fractions.     

罗斯及印第安河鸡发育时期组织LDH同工酶变化

罗斯及印第安河鸡在胚胎第3d的混合胚中出现LDH_(1～3)3种同工酶(3条区带,梯度凝胶电泳),或LDH_(1～4)4种同工酶(6～7条区带,等电聚焦电泳);第7d检出心肌、胸肌和脑的5种同工酶(LDH_(1～5),5～7条区带);第12d检出肝脏的LDH_(1～5)5种同工酶(8或15条区带).组织LDH同工酶区带数随发育过程明显增多,同种鸡同一组织不同发育时期的LDH同工酶活性变化相差显著或极显著.在相同发育时期,印第安河鸡胸肌和肝脏的LDH_1相对活性均明显高于罗斯鸡(P<0.01).两种鸡心肌、胸肌、肝和脑组织LDH同工酶的等电点主要分布在pH6.0～8.2内.     

初生北京鸭4种组织LDH同工酶的分析

本文用薄层聚丙烯酰胺凝胶等电聚焦电泳对初生北京鸭的４种组织进行同工酶分析，结果表明初生北京鸭肝脏具有１１条区带，胸肌具有９条区带，肾脏具有１０条区带，心脏具有９条区带。从它们的Ａ亚基和Ｂ亚基的相对百分量的比值中可看出心脏和肾脏中的Ｂ亚基含量比肝脏中的多，相反，肝脏的Ａ亚基含量比心脏和肾脏含量多。胸肌的Ａ亚基和Ｂ基含量则是相近似的。     

Growth and Development of Testes in Domesticated and Hybrid(wild × domesticated)Yak Bulls

Testicular tissue was studied in domesticated yak and in wild yak × domesticated yak(F1 and F2)bulls at 6,12,18 and 24 months of age by stereology for quautitative histology and by comparative studies on the lactate dehydrogenase(LDH)isoenzyme spectrum, LDH activity and the percentage content of LDH isoenzymes in testes. The results indicated that all three types of yak were similar in both the characteristics of ultrastructure of testicular tissue and the degree of germ cell development. The process of spermatogenesis was initiated and sperm were produced for the first time at the age of 12months in all three yak types. All yak types exhibited similar age-related, increases in weight of testes,volume density of both the seminiferous tubules and seminiferous epithelium and height of seminiferous epithelium but all these indexes were slightly affected by season. The number of LDH isoenzyme bands after electrophoresis varied with age as follows: four bands were present at 6 months of age, five bands at 12 and 18 months and six bands at 24 months of age. The sixth band was LDH -x ,which appeared between the LDH4 and LDH5 band. These results indicated that yak bulls reach sexual maturity at 24months of age and that puberty is not affected by infusion of wild strains.     

LDH and CK isoenzyme patterns in the blood plasma of horses with elevated CK, LDH and AST activities

The distribution of LDH and CK isoenzymes in blood plasma of ten clinically sound Thoroughbreds with reasonable performance and without elevated clinico-chemical blood variables (reference group) was compared with 57 Thoroughbreds, which had histories of mild locomotor disturbances and/or poor performance and had elevated CK, LDH and/or AST activities (trial group). The trial group was subdivided according to the number of altered blood variables and in the groups with two as well as three altered blood variables also according to the extent of alteration of the total CK activity. The pattern of LDH and CK isoenzyme distribution in the blood plasma of the reference group was the following: 22% LDH1, 36% LDH2, 34% LDH3, 6% LDH4 and 2% LDH5 as well as 75% CK1 and 15% CK2. The remaining 10% of the plasma electropherogram could not be alloted to any one of the two CK bands. All trial groups built showed a similar pattern of changes in their isoenzyme distribution independent on kind and combination of altered enzyme activities. The shares of CK1, LDH4 and LDH5 were significantly increased whilst the shares of CK2, LDH1 and LDH2 decreased. A multiple analysis of variance demonstrated that only increased total CK activities had a pronounced effect on distribution of LDH and CK isoenzyme patterns in the trial group (p less than 0.01 for LDH2, LDH3, LDH4, CK1 and p less than 0.05 for CK2). The conclusion of the study was that the altered distribution pattern of LDH and CK isoenzymes of the trial group signalized an increased skeletal muscle membrane leakage.     

外源NO及反向调控PEG胁迫下苜蓿萌发种子抗氧化酶及其同工酶动态的研究

以紫花苜蓿为材料,用一氧化氮供体硝普钠(SNP)及一氧化氮清除剂c-PTIO对苜蓿种子进行浸种处理,采用分光光度法和同工酶电泳技术来研究外源NO及反向调控对PEG胁迫下紫花苜蓿抗氧化酶活性及其同工酶的影响,并探讨NO调控苜蓿种子耐旱性的生理机制。结果表明:PEG胁迫下外施0.1 mmol·L^-1 SNP,第6天时较PEG处理POD活性降低了32.72%;第4天时SOD、CAT活性较PEG处理升高了10.48%、23.60%,有效缓解了PEG对紫花苜蓿萌发中种子的氧化损伤,提高其抗氧化能力。PEG胁迫下添加 c-PTIO抑制了苜蓿萌发期的抗氧化系统活性。从同工酶的谱带数量和强弱来看,POD同工酶各区带活力均随PEG胁迫时间的延长而增加,在第2天酶带只有1条,而第4天酶带呈现9条;SOD和CAT同工酶表达量变化不显著,但酶带强弱有一定变化,S3酶带随处理时间的延长表达量逐渐减弱;CAT同工酶谱带则一直保持2条带,无明显强弱变化。因此,外源NO在PEG胁迫下紫花苜蓿萌发中抗氧化酶快速响应并在维护氧自由基代谢平衡中起重要保护作用。     

豆状囊尾蚴与细颈囊尾蚴和宿主（兔）的同工酶,蛋白质比较研究

用聚丙烯酰胺凝胶圆盘电泳分离出豆状囊尾蚴囊液乳酸脱氢酶同工酶4～5条酶带,酯酶同工酶1条酶带,蛋白质6～9条区带;豆状囊尾蚴囊壁和头节乳酸脱氢酶同工酶3～4条酶带,酯酶同工酶无,蛋白质17条区带;细颈囊尾蚴囊液乳酸脱氢酶同工酶1～4条酶带,酯酶同工酶1～3条酶带,蛋白质7～10条区带;宿主——兔腹水乳酸脱氢酶同工酶5条酶带,酯酶同工酶3～5条酶带,蛋白质13～16条区带。并作了豆状囊尾蚴与细颈囊尾蚴囊液同工酶、蛋白质和豆状囊尾蚴与宿主的同工酶、蛋白质相互关系的详细分析,结果表明豆状囊尾蚴与细颈囊尾蚴的同工酶和蛋白质具有差异和两者可能存在交叉免疫;豆状囊尾蚴的酶蛋白和蛋白质来源独立于宿主,但在一定程度上受宿主的影响。     

马关节滑液、血清乳酸脱氢酶及其同工酶和它们在疾病状态下的变化

用king氏法和聚丙烯酰胺凝胶电泳法测得马关节滑液和血清乳酸脱氢酶(LDH)及其同工酶正常值。滑液和血清5种LDH同工酶电泳迁移率相同。各种LDH同工酶的分子量和热稳定性均有明显差异。抗尿素作用,血清和滑液LDH同工酶基本相似。Mg~(++)是LDH激活剂,最佳激活浓度为10~(-3)M;Zn~(++)、Ca~(++)、Cu~(++)、Hg~(++)、谷胱甘肽、半胱氨酸、碘乙酸、EDTA等为LDH抑制剂。在四肢的急性或亚急性关节和骨疾病时,滑液LDH明显升高,其同工酶谱随疾病发生部位不同而不同,并与血清一致,但慢性关节疾病时LDH及其同工酶变化则不一致。     

The effect of physiological parameters on serum lactate dehydrogenase isoenzymes in lambs

The effect of age, sex and growth rate on total serum lactate dehydrogenase (LDH) and its isoenzymes was assessed in Suffolk X Halfbred lambs from 1.5 days to 10 weeks old. The total LDH activity was higher at 1.5 days than in older lambs and the percentage of LDH₁ tended to increase while LDH₄ and LDH₅ decreased with age from 2 weeks, indicating that the isoenzyme distribution was changing towards the adult pattern. In female lambs, the percentage of LDH₁ was higher than in male lambs at 1.5 days, but little importance was attached to this finding since the difference was not significant at 10 weeks. No clear relationships existed between the level of total LDH or its isoenzymes and daily liveweight gain.The age-related changes were considered to be of greater significance than those related to sex and growth rate when interpreting serum LDH levels in lambs.     

Alkaline phosphatase isoenzymes in feline serum using an agarose gel alkaline phosphatase kit method.

Total serum alkaline phosphatase (ALP) activity is the product of the combined activity of isoenzymes from a number of tissue sources. In this study, a commercially available kit for electrophoretic separation of ALP isoenzymes in an agarose gel was used to separate ALP isoenzymes in feline tissue extracts and serum. Five separate bands of ALP activity were identified. These bands were numbered 1 to 5 with band 1 having the most anodal migration. The tissue of origin corresponding to the migration position of the isoenzymes are as follows: Band 3 was the liver isoenzyme, band 4 was the bone isoenzyme and ALP isoenzymes of both intestine and kidney migrate in the position labelled band 5. Band 1 appears to be related to albumin and does not represent true ALP activity. The tissue source of band 2 (a and b) was not identified. Serum ALP activity of mature, healthy cats is primarily of liver origin. Immature cats (< 1 year of age) have a greater proportion of the bone isoenzyme in the serum.