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1.
Arq. bras. med. vet. zootec ; 68(4): 839-844, jul.-ago. 2016. tab
Article in Portuguese | LILACS, VETINDEX | ID: lil-792456

ABSTRACT

Amostras de sangue foram obtidas de 138 equinos registrados da raça Campeiro, com idade média de 9,7±5,4 anos, sendo 14 machos (10,15%) e 124 fêmeas (89,85%). Observaram-se valores médios da atividade sérica de GGT: 13,73±4,08 U/L; AST: 246,34±72,87U/L; ALT: 5,13±1,18U/L; FA: 284,32±53,33UI/L; CK: 132,54±72,25U/L; LDH: 511,38±143,65U/L; e das concentrações séricas de ureia: 38,65±12,62mg/dL e de creatinina: 1,24±0,24mg/dL. Os valores médios de AST, FA, ALT, ureia e creatinina foram semelhantes aos propostos na literatura para outras raças. Os valores de CK, GGT e LDH foram superiores aos comumente utilizados como referências. Não houve diferença nas concentrações de nenhum dos componentes séricos avaliados nas diferentes idades analisadas. Maiores valores médios nas concentrações de ureia e menores de creatinina foram observados nas fêmeas em relação aos machos, assim como a maior atividade sérica de FA em fêmeas gestantes em relação às éguas vazias. O perfil bioquímico sérico de equinos sadios da raça Campeiro apresenta variações peculiares que devem ser levadas em consideração na interpretação de exames laboratoriais.(AU)


Blood samples were obtained from 138 equines of the Campeiro breed with mean ages of 9.7±5.4 years, including 14 males (10.15%) and 124 mares (89.85%). Mean values of serum of GGT: 13.73 ± 4.08U/L; AST: 246.34±72.87U/L; ALT 5.13±1.18U/L; FA: 284.32±53.33IU/L; CK: 132.54±72.25U/L; LDH: 511.38±143.65U/L; and serum urea: 38.65±12.62mg/dL and creatinine: 1.24±0.24mg/dL were observed. The mean values of AST, FA, ALT, urea and creatinine were similar to those proposed in the literature for other breeds. The CK values, GGT, and LDH were higher than those commonly used as references. There was no difference in the concentrations of any of the serum components evaluated at different ages analyzed. Further average values in the lower urea concentrations and creatinine were observed in females compared to males, as well as the higher serum activity of FA in pregnant mares in relation to non-pregnant. Serum biochemical profile of healthy horses of the Campeiro breed presents peculiar variations that must be taken into consideration in the interpretation of laboratory tests.(AU)


Subject(s)
Animals , Male , Female , Pregnancy , Clinical Enzyme Tests/veterinary , Horses/blood , Clinical Laboratory Techniques/veterinary
2.
Pesqui. vet. bras ; 35(9): 795-800, Sept. 2015. graf
Article in Portuguese | LILACS | ID: lil-767738

ABSTRACT

A indoleamina 2,3-dioxigenase (IDO) é uma enzima responsável por catabolizar o aminoácido triptofano. Sua presença no ambiente uterino placentário está relacionada à tolerância imunológica ao semi-aloenxerto, pois impede a proliferação de células imunológicas maternas, seja pela falta do aminoácido, ou pela ação de alguns catabólitos oriundos da quebra do triptofano, como o ácido quinolínico, que é tóxico principalmente para os linfócitos T. Pouco se conhece sob a influência de substâncias (hormônios e citocinas) presentes na interface materno fetal e a expressão dessa enzima. Por esta razão, formulou-se a hipótese de que hormônios e interleucinas presentes na região uteroplacentária poderiam exercer algum efeito na expressão da IDO. Células oriundas da interface materno fetal de ratas Wistar foram mantidas em cultivo, onde receberam suplementação com estradiol e interferon-γ. A expressão da enzima foi avaliada pela técnica de citometria de fluxo nos períodos de 4, 24 e 48 horas e confirmação da presença proteica por imuno-histoquímica. Os resultados mostraram um aumento na expressão de IDO após a adição de estrógeno (9,03±0,81/11,25±0,25) e interferon-γ (9,03±0,81/20,43±0,60). O efeito do interferon-γ já era esperado como relatado na literatura, contudo, a elevação da expressão da IDO pela adição do estrógeno constitui nova informação sobre possíveis mecanismos envolvidos na ativação da enzima. O melhor esclarecimento desses achados poderia contribuir para uma melhor compreensão da participação dessa enzima na tolerância materno-fetal e para uma futura modulação terapêutica da mesma...


The indoleamine 2,3-dioxygenase (IDO) is an enzyme responsible for catabolizing the tryptophan. Its presence in the placental uterine environment is related to immunological tolerance to the semi-allograft because it prevents proliferation of maternal immune cells, either by the lack of this amino acid or by the action of its catabolites, such as the quinolinic acid, which is particularly toxic for T lymphocytes. Little is known regarding the influence of hormones and cytokines on the expression of IDO in the maternal fetal interface. Therefore, the hypothesis that some hormones and interleukins present in uteroplacental region could have an effect on the expression of IDO on cultured cells was tested. Cells derived from the fetal maternal interface from Wistar rats were kept in culture and supplemented with estradiol and interferon-γ. Expression of the enzyme was assessed by flow cytometry at periods of 4, 24 and 48 hours and confirmation of the presence of protein by immunohistochemistry. The results showed an increasing of IDO expression after the addition of estrogen (9.03±0.81 to 11.25±0.25) and interferon-γ (9.03±0.81 to 20.43±0.60). The effect of interferon-γ was expected as reported in the literature, however, elevated IDO expression by estrogen represents new information on possible mechanisms involved in the enzyme activation. These findings could provide a better understanding of IDO contribution on maternal-fetal tolerance and may collaborate to future therapeutic modulation of this enzyme...


Subject(s)
Animals , Female , Pregnancy , Guinea Pigs , Estrogens , Interferon-gamma , Rats, Wistar/embryology , Flow Cytometry/veterinary , Clinical Enzyme Tests/veterinary , Immunohistochemistry/veterinary , Placenta
3.
Arq. bras. med. vet. zootec ; 64(6): 1442-1448, Dec. 2012. ilus, tab
Article in Portuguese | LILACS | ID: lil-660208

ABSTRACT

Avaliaram-se a concentração de lactato e a glicemia em sete cadelas em trabalho de parto submetidas à cesariana e em seus respectivos neonatos. O lactato materno foi mensurado utilizando-se medidor portátil e pelo método enzimático colorimétrico. Nos neonatos avaliou-se também o peso ao nascimento. Os valores de lactato materno e neonatal foram estatisticamente diferentes, sendo mais elevado nos neonatos. Ao nascimento, as cadelas e os neonatos encontravam-se normoglicêmicos, e não se observou correlação entre a glicemia de ambos. Os valores de lactato obtidos pelo o analisador portátil (3,5±0,6mmol/L) foram mais altos do que os obtidos pelo método enzimático colorimétrico (1,6±0,6mmol/L). Observou-se correlação significativa entre o peso do neonato e a concentração de lactato, isto é, os filhotes de menor peso apresentaram maior concentração de lactato.


This work evaluated the concentration of lactate and blood glucose in seven bitches in labor subject to caesarean section and in their newborns. The lactate concentration was measured using a portable analyzer and enzymatic colorimetric method. In neonates, the birth weight was evaluated. The maternal and neonatal lactate values were statistically different, being higher in newborns. At birth, the bitches and the newborns had normal glucose status, and no correlation was observed between blood glucose in either. The lactate concentration obtained by the portable analyzer (3.5±0.6mmol/L) was higher than that obtained with the enzymatic colorimetric method (1.6±0.6mmol/L). There was significant correlation between the neonate weight and lactate concentration and in puppies with lighter weight there was a higher concentration of lactate.


Subject(s)
Animals , Female , Dogs , Lactic Acid/analysis , Cesarean Section/adverse effects , Cesarean Section/veterinary , Blood Glucose/analysis , Animals, Newborn , Clinical Enzyme Tests/veterinary , Glycemic Index , Fetal Hypoxia/veterinary
4.
Mem. Inst. Oswaldo Cruz ; 101(4): 391-395, June 2006. graf, tab
Article in English | LILACS | ID: lil-435299

ABSTRACT

Determination of seric levels of adenosine deaminase (ADA), an enzyme produced by monocytes/macrophages and lymphocytes, has been used in the diagnosis of human tuberculosis (TB). In the present study, ADA seric activity was evaluated comparatively to the comparative tuberculin test in the diagnosis of bovine tuberculosis. Two hundred fifty-six cattle were classified by origin and by the comparative tuberculin test as TB-positive animals (n = 52, from herds where the Mycobacterium bovis had previously been isolated), and TB-negative animals (n = 204, TB-free herds). The mean ADA seric value from the TB-positive group (4.45 ± 2.33 U/L) was significantly lower (p = 0.008) than that observed in sera from the TB-negative group (6.12 ± 4.47 U/L). When animals from a herd with clinical cases of enzootic bovine leukosis of TB-negative group were withdrawn from analysis, the mean ADA seric values of TB-negative group (5.12 ± 3.75 U/L) was not significantly different anymore from that of the TB-positive group (p = 0.28). There was no agreement in the diagnosis of bovine TB between comparative tuberculin test and determination of ADA seric values, using two different cutoff points, being 6.12 U/L and 15.0 U/L, (kappa = -0.086 and kappa = -0.082, respectively). In conclusion, the determination of ADA seric activity was not a good auxiliary test for bovine TB, because it was not able to distinguish between TB-positive and TB-negative animals.


Subject(s)
Animals , Cattle , Adenosine Deaminase/blood , Clinical Enzyme Tests/veterinary , Mycobacterium bovis , Tuberculosis, Bovine/diagnosis , Biomarkers/blood , Sensitivity and Specificity , Tuberculin Test/veterinary
5.
Ciênc. rural ; 30(2): 351-3, mar.-abr. 2000. tab
Article in Portuguese | LILACS | ID: lil-273899

ABSTRACT

Empregando-se difusäo radial enzimática em ágargel, atividades hidrolíticas de amostras de conteúdo do intestino delgado de 38 bovinos adultos de matadouro foram mensuradas em animais agrupados como possuidores de pâncreas hígidos (controle) e parasitados por Eurytrema sp, estes, segundo dois graus de infecçäo reconhecidos. Para tal, foram empregados quatro substratos, dos quais caseinato de cálcio e óleo de milho tiveram de ser desconsiderados porque, no caso deles, näo houve formaçäo de halos ou estes apresentaram limites imprecisos. Apesar desses problemas näo terem ocorrido quando o substrato era leite em pó desnatado ou amido, as atividades hidrolíticas encontradas foram equivalentes, independentemente da condiçäo de parasitismo e grau de infecçäo verificados (P>0,05). Concluiu-se, entäo, que a técnica de difusäo radial enzimática, pelo menos com os substratos empregados, foi incapaz de acusar disfunçöes pancreáticas exócrinas em bovinos infectados por Eurytrema sp.


Subject(s)
Animals , Male , Female , Cattle , Cattle Diseases/diagnosis , Cattle Diseases/parasitology , Parasitic Diseases, Animal/complications , Parasitic Diseases, Animal/diagnosis , Pancreatitis/diagnosis , Pancreatitis/etiology , Pancreatitis/veterinary , Chronic Disease , Clinical Enzyme Tests/veterinary
6.
Alexandria Journal of Veterinary Sciences [AJVS]. 1995; 11 (2): 25-33
in English | IMEMR | ID: emr-36115

ABSTRACT

Coccidiosis exerts adverse effects on productive and reproductive performance of Barki sheep, especially during the period of puberty at about six months of age. Metabolic profile tests such as hematocrit value, hemoglobin content, total RBCs count showed a statistically significant decrease, whereas an increase was observed in WBCs and their differential count, total bilirubin, glucose, ALP, SGOT and SGPT. Macro- and microelements such as calcium, inorganic phosphorus, magnesium, iron, copper and zinc were also decreased. The results are discussed with regard to the age of six months. Medication with Baycox [Bayer] corrected all detrimental effects of coccidiosis except for zinc deficiency


Subject(s)
Sheep Diseases/parasitology , Minerals/analysis , Trace Elements/analysis , Clinical Enzyme Tests/veterinary
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