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1.
The agarose gel electrophoresis described by Johansson (1972) was modified so that a buffer of pH 7.9 was used in the gel, whereas the buffer in the electrode vessels had a pH of 8.6.The cattle blood serum protein picture is described in detail. The β1-globulin zone shows a very distinct picture of the genetically polymorphic bovine transferrins. The region between the α- and β-globulins shows a number of faint and often very distinct bands. A faint background staining over the whole electrophoretogram may partly be caused by a rather strong lipoprotein in the α1-region, lipids thus having migrated all over the electrophoretogram.The modified method described is well suited as a “screen electrophoresis” for cattle serum and is also useful e.g. in studying bovine transferrin polymorphism. 相似文献
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Crivellente F Bonato M Cristofori P 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2008,37(1):73-78
BACKGROUND: Serum protein analysis in both humans and experimental animal species has so far been carried out by labor-intensive techniques, such as agarose gel electrophoresis (AGE). OBJECTIVE: The objective of this study was to evaluate capillary electrophoresis (CE) as an alternative technique to AGE for the analysis of serum proteins from healthy animals. METHODS: Blood samples were collected into tubes without anticoagulant from 6 fasted healthy male mice, rats, dogs, marmosets, and humans. Serum proteins were separated by CE using a technique standardized for the analysis of human proteins, and the results (efficiency, resolution, and precision) were compared with those obtained through AGE. RESULTS: Compared with AGE, CE resulted in narrower peaks and more peaks. The efficiency of protein separation by CE was significantly higher for all species, and resolution (R) was significantly higher in samples from dogs. Using rat serum, intraday reproducibility was lower for all protein fractions, and interday reproducibility was lower for most peaks, compared with AGE. CONCLUSIONS: We conclude that CE is a viable alternative to AGE for the determination of protein electrophoresis in a routine veterinary clinical pathology laboratory. The minimal sample requirement (2 microL), complete automation, and quantitative results make CE an especially valuable technique for protein analysis in experimental animal models. 相似文献
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Facchini RV Bertazzolo W Zuliani D Bonfanti U Caldin M Avallone G Roccabianca P 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2010,39(4):440-446
Gammopathies associated with plasma cell neoplasms in a 15-year-old female spayed domestic shorthaired cat and a 9-year-old female spayed Rottweiler dog were evaluated by serum protein electrophoresis. In the cat, the plasma cell neoplasm was found in the liver and spleen, and an evaluable sample of bone marrow was not obtained. Some of the plasma cells had the morphologic appearance of flame cells. The paraprotein was confirmed as IgG based on agar gel immunodiffusion precipitation and both immunocytochemical and immunohistochemical staining. The dog had multiple myeloma with production of IgG and IgA paraproteins. In both cases, serum proteins were evaluated by 2 methods of protein electrophoresis: cellulose acetate electrophoresis (CAE) and capillary zone electrophoresis (CZE). In the cat and the dog, CAE showed a single large oligoclonal-like peak, which occurred in the γ-region in the cat and the β-γ-region in the dog, whereas CZE showed a biclonal gammopathy with 2 very close narrow spikes in the γ- and β-γ-regions in the cat and dog, respectively. In selected cases, CZE may be more effective than routine CAE in distinguishing oligoclonal from monoclonal or biclonal paraproteinemia. 相似文献
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Bonfanti U Zini E Minetti E Zatelli A 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2004,18(5):618-624
The purpose of this retrospective study was to investigate the relationship among proteinuria consisting of immunoglobulin free light chains (FLCs), renal histopathologic findings, and routine markers of renal function in 11 dogs exposed to Leishmania infantum (n = 8), Ehrlichia canis (n = 2), and Babesia canis (n = 1). FLC proteinuria was suspected based on identification of a 22- to 27-kDa band by sodium dodecyl sulfate-agarose gel electrophoresis (SDS-AGE) and later confirmed by immunofixation electrophoresis. SDS-AGE identified an isolated band of 22-27 kDa in 8 dogs, whereas the remaining 3 had a 22- to 27-kDa band and an additional band of 67-72 kDa. The median urine protein-to-urine creatinine ratio was 0.37 (range, 0.11-2.24) and increased ratios were found in 6 dogs (54.5%) (reference value, <0.7). All dogs underwent histologic examination of renal percutaneous biopsy specimens and determination of serum creatinine and urea concentrations. Tissue samples for light microscopy were stained with hematoxylin-eosin, periodic acid-Schiff, Goldners trichrome, and methenamine silver. In the study group, the glomerular tufts, mesangium, tubulointerstitium, and vessels appeared unaffected. The median serum creatinine concentration in these 11 dogs was 1.3 mg/dL (range, 0.8-1.5 mg/dL; reference range, 0.6-1.5 mg/dL), whereas the concentration for urea was 28 mg/dL (range, 22-52 mg/dL; reference range, 20-50 mg/dL). All dogs had normal renal morphology and had normal serum creatinine and urea concentrations, suggesting that immunoglobulin FLC may be detected in the urine of dogs exposed to L. infantum, E. canis, and B. canis without any apparent structural or functional renal derangement. 相似文献
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Bauer JE Harvey JW Asquith RL McNulty PK Kivipelto J 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1985,14(1):14-22
Normal reference values for serum proteins of foals from birth to 1 year of age have been established. Chemical and electrophoretic/refractometric methods for total protein, albumin, total globulin and Albumin/Globulin (A/G ratio) have also been compared. The biuret total protein method and Bromcresol Green (BCG) method on the Technicon SMA 12/60 autoanalyzer were used and compared with total protein determined via refractometry and albumin determined by Cellulose Acetate (CA) electrophoresis/densitometry. Globulin and A/G ratios were calculated from the chemical method data and compared with that obtained electrophoretically. Total protein, albumin, total globulins and A/G ratios all were in agreement at all sample times studied. Data on the subfractionation of serum globulins via CA electrophoresis is also presented. Wide variations in alpha and beta globulin levels were noted among the foal sera early in life. As a result, two distinct populations of foals with respect to both globulin content and A/G ratio were identified. One of these populations (Group A) appeared to have obtained passive immunity more slowly than the other (Group B) animals. Comparison of these data with clinical cases of foals in which failure of passive transfer was a part suggests that the A/G ratio may be useful in assessing adequate colostral antibody levels in the newborn foal. 相似文献
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高效毛细管电泳法同时检测饲料中七种防腐剂 总被引：1，自引：0，他引：1
建立酸性条件下同时分离测定山梨酸(SA)、苯甲酸(BA)、脱氢乙酸(DHA)、对羟基苯甲酸甲酯(MP)、对羟基苯甲酸乙酯(EP)、对羟基苯甲酸丙酯(PP)、对羟基苯甲酸丁酯(BP)七种防腐剂的高效毛细管电泳法。本试验用甲醇:水=1:1(体积比)的混合液作为提取剂提取饲料样品中防腐剂;以40 mmol/l磷酸二氢钾(KH2PO4)和100 mmol/l十二烷基硫酸钠(SDS)的1:1体积比混合液(pH=4.00)作为缓冲液,采用高效毛细管胶束电动色谱法测定样品中七种防腐剂。该方法在19 min内实现了七种防腐剂的分离;SA、BA的线性范围分别为1～500μg/ml和3～500μg/ml,DHA、MP、PP、BP、PP的线性范围均为5～500μg/ml,线性相关系数≥0.999 5。SA、BA、DHA和四种对羟基苯甲酸酯类防腐剂的检测限分别为0.5、1.5、3.0、2.5μg/ml;样品平均回收率为80.8%～107.0%,相对标准偏差≤5.0%。该方法高效快速分离了多种防腐剂,并且可以应用到各种饲料样品的检测。 相似文献
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毛细管电泳技术用于ＤＮＡ电泳分析，具有快速，样品用量少，高重复率等特点。本文应用毛细管电泳对动基体微环ＤＮＡ ＰＣＲ扩增产物进行检测，结果表明扩增产物分子量片段为３００ｂｐ到６００ｂｐ之间，与实验设计相符，且比较纯净，可用于下一步测序分析。 相似文献
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刘家英 《中国兽医寄生虫病》1996,(1)
四种叶形吸虫成虫初级精母细胞核ＤＮＡ含量测定表明，寄生于较高等鱼类宿主的中华叶形吸虫和鳗鲡叶形吸虫的ＤＮＡ含量较高（Ｃ值分别为０．２５ｐｇ和０．２６ｐｇ），而寄生于较低等鱼类宿主的鲶叶形吸虫和巴氏叶形吸虫的ＤＮＡ含量较低（Ｃ值分别为０．２１ｐｇ和０．２０ｐｇ）。这四种叶形吸虫成虫全蛋白质浓度梯度凝胶电泳分析进一步显示，中华叶形吸虫与鳗鲡叶形吸虫构成一近缘亚群（Ｓｍ＝０．６５７９，Ｄ＝０．４１８７），而鲶叶形吸虫和巴氏叶形吸虫构成另一近缘亚群（Ｓｍ＝０．６１７６，Ｄ＝０．４８１９）；这两个亚群间的相似系数值（Ｓｍ）小于０．５３，遗传距离值（Ｄ）大于０．６４。以上结果从分子水平上再次证实将叶形吸虫属划分为两个亚属是有根据的。 相似文献
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八个品种家兔血清LDH同工酶电泳分析 总被引：2，自引：0，他引：2
利用不连续梯度聚丙烯酰胺圆盘凝胶电泳方法，对新西兰兔，青紫蓝兔，比利时兔等八个品种家兔血清的ＬＤＨ同工酶进行电泳分析。实验结果表明，聚丙烯酰胺凝胶电泳能很好地分离出家兔血清中的五种ＬＤＨ同工酶；家兔血清ＬＤＨ同工酶图谱的区带分布具有种的特异性，家名义血清ＬＤＨ同工酶以Ｂ亚基占优势，Ａ、Ｂ亚基的比率反映家兔的亲缘关系，通过实验，对家兔品种组合杂种优势进行了估测。 相似文献
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两种微孢子虫孢子表面蛋白及对家蚕侵染性的比较研究 总被引：11，自引：6，他引：5
对来自家蚕的内网虫属样微孢子虫和家蚕微孢子虫的形态、表面蛋白及侵染性进行了比较研究。内网虫属样微孢子虫孢子显著小于家蚕微孢子虫 ,孢囊中孢子数为 8～ 32个 ,只侵染中肠组织 ,对家蚕无胚胎传染性。SDS UreaPAGE和 2D PAGE图谱显示两种孢子表面蛋白有明显差异。在SDS UreaPAGE中 ,内网虫属样微孢子虫的主要表面蛋白为 2 2kD ,而家蚕微孢子虫为 4 5kD。 2D PAGE显示 ,当上样量为 12 0 μg时 ,内网虫属样微孢子虫孢子表面蛋白斑点有 330多个 ,而家蚕微孢子虫孢子只有 16 0多个 ,其中仅有 10多个相同或疑似蛋白点。家蚕微孢子虫的主要表面蛋白点约有 2 0个 ,以中性偏酸的小分子居多 (<18kD ,pI 5 .4～ 7.2 ) ;内网虫属样微孢子虫有 30多个 ,分布较分散。根据两种孢子都能感染家蚕的特点 ,认为相同或疑似蛋白与是否能够感染有关 ,而大量差异蛋白与对家蚕的感染程度有关。两孢子表面蛋白中的主要蛋白均为差异蛋白 ,可能是孢子表面的结构蛋白。 相似文献
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Martínez-Subiela S Tecles F Montes A Gutiérrez C Cerón JJ 《Veterinary journal (London, England : 1997)》2002,164(3):453-268
The possible interference of haemolysis, lipaemia, bilirubinaemia and fibrinogen on capillary zone electrophoresis of canine samples were studied. Solutions of haemoglobin, lipid and bilirubin were prepared and mixed with serum aliquots to make up samples containing different concentrations of the putative interferent substance. In addition, samples of serum and plasma were assayed to assess the influence of fibrinogen. Haemolysis and lipids produced a change in electropherogram morphology giving an interference peak located in the beta-2 region when haemoglobin was increased, and in the alpha-2 region when lipids were increased. A rise in concentration of these interferents caused an increase in the beta and alpha-2 fractions respectively, and a decrease in the other fractions. Bilirubin did not alter morphology but gave an increase in the albumin and alpha-1 and a decrease in the alpha-2 and beta-2 fractions. No differences were found between serum and plasma samples, and fibrinogen did not produce any additional peak. 相似文献
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高效毛细管电泳法同时检测地克珠利和妥曲珠利的含量 总被引：1，自引：2，他引：1
采用毛细管电泳-二极管阵列检测法建立了地克珠利和妥曲珠利两种结构相近的均三嗪类抗球虫药物的分离检测方法.同时还探讨了缓冲溶液的种类、浓度、pH值等诸多因素对分离检测结果的影响.上述两种药物在8 min内实现了基线分离.线性检测范围为0.5～100 μg/mL,检出限为0.1 μg/mL (S/N=3). 相似文献
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以近两年国内外的最新相关研究报道为基础,从农药、兽药和中药三方面,论述了毛细管电泳在其检测分析中的应用概况。 相似文献
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Reference intervals for the activity of lactate dehydrogenase and its isoenzymes in the serum and cerebrospinal fluid of healthy canines 
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下载免费PDF全文 Jennifer H. Kopanke Annie V. Chen Jourdan E. Brune Amanda C. Brenna Stephanie A. Thomovsky 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2018,47(2):267-274
Background
Lactate dehydrogenase (LD) exists as 5 isoenzymes (LD‐1 through LD‐5) that are expressed throughout the body and can be detected in both serum and cerebrospinal fluid (CSF). LD and its isoenzymes have been relatively unstudied in veterinary medicine, although studies in human medicine have demonstrated that changes in total LD activity and atypical isoenzyme patterns can indicate disease processes, including neurologic abnormalities.Objectives
The purpose of this study was to establish RIs for LD and its isoenzymes in the serum and CSF of clinically healthy dogs. By establishing a definitive RI for this enzyme in healthy canines, further study of the clinical and diagnostic usefulness of LD can be undertaken.Methods
Serum and atlantoaxial CSF were collected from clinically healthy dogs. Total LD activity was measured spectrophotometrically immediately after collection. Isoenzyme distributions were also determined within 8 hours of collection using the QuickGel LD Isoenzyme technique and a densitometric scanner.Results
The median serum total LD in healthy canines was 69.0 U/L (n = 41; range: 21.0‐217.0 U/L), while the median CSF total LD was 10.0 U/L (n = 40; range: 6.0‐19.3 U/L). LD‐5 is the predominant isoenzyme in canine serum (n = 40), contributing over half of the total enzyme activity. Conversely, in canine CSF (n = 42), LD‐1 is the predominant isoenzyme, followed by LD‐2 and LD‐3.Conclusions
Knowledge of the distribution and concentration of LD in the serum and CSF of healthy dogs will set the foundation for future studies of canine LD as a potentially clinically useful biomarker. 相似文献19.
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为了建立鸭疫里默氏杆菌菌体蛋白的双向电泳技术,获得分辨度高、重复性好的双向电泳图谱。利用适当的裂解液处理鸭疫里默氏杆菌,提取全菌蛋白;采用pH值4～7,24cm干胶条,0.8 mg菌体蛋白进行双向电泳;硝酸银染色后获得的双向电泳图谱,并利用I mage MasterTM2D Platinum5.0图象分析软件进行分析,所得的数据用SPSS 15.0软件进行统计分析。结果得到了(800±26)个蛋白斑点,蛋白主要集中在pI值4.13～7.40之间,重复胶的匹配点数为(600±20),匹配率为75.2%。建立了鸭疫里默氏杆菌菌体蛋白双向电泳技术,2-DE图谱中蛋白位点的分辨率和重复性比较高,为进一步研究其蛋白质组学奠定了基础。 相似文献