Nitroblue tetrazolium reduction test and serum lysozyme assay in newborn Arabian foals and mares.
Abstract:
Summary:
Serum lysozyme (LZM) activity and nitroblue tetrazolium (NBT) reduction capacity of circulating phagocytes were determined by the lysoplate technique and the microquantitative method, respectively. As blood donors 47 clinically normal Arabian foals ranging in age from 6 hours to 22 days and their 40 dams were used.
A significantly (p < 0.05) lower serum LZM activity was found in foals older than 24 hours, compared with the mares (40.84 U/ml ± 15.32 and 48,96 U/ml ± 17.9, respectively), but the LZM/phagocyte ratio was similar in foals and mares.
Circulating phagocytes from foals had similar NBT reduction potency to cells from the mares. There were no age-related changes in this activity during the first 3 weeks of life, whereas in the mares a significant positive correlation between the results of the NBT test and time post partum was found.
Zusammenfassung:
Nitroblau-Tetrazolium-Reduktionstest und Serumlysozym-Prüfung bei neugeborenen arabischen Fohlen und Stuten
Die Serumlysozymaktivität (LZM) und die Nitroblau-Tetrazolium (NBT)-Reduktionskapazität zirkulierender Phagozyten wurden durch die Lysoplatten-Technik beziehungsweise durch die Mikro-quantitative Methode bestimmt. Als Blutspender dienten 47 klinisch gesunde Araberfohlen im Alter von 6 Stunden bis 22 Tage und ihre 40 Muttertiere.
Eine deutlich (p < 0,05) niedrigere Serum-LZM-Aktivität wurde bei Fohlen gefunden, die älter als 24 Stunden waren, im Vergleich zu den Werten, gemessen bei den Stuten (40,84 U/ml ± 15,32 und 48,96 U/ml ± 17,9), jedoch war das LZM-Phagozytenverhältnis bei Fohlen und Stuten gleich.
Die zirkulierenden Phagozyten der Fohlen hatten eine gleiche NBT-Reduktionswirksamkeit zu den Zellen der Stuten. Es traten während der ersten 3 Lebenswochen keine altersabhängigen Unterschiede in dieser Aktivität auf, während bei den Stuten eine deutliche positive Korrelation zwischen den Ergebnissen des NBT-Testes und der Zeit post partum gefunden wurde.
Résumé:
Test de réduction au nitrobleu-tétrazolium et l'activité sérique du lysozyme chez des juments et poulains nouveaux-nés arabes
L'activité sérique du lysozyme (LZM) et la capacité de réduction au nitrobleutétrazolium (NBT) des phagocytes circulants ont été déterminées par la technique des lysoplaques et par la méthode microquantitative. 47 poulains arabes sains âgés de 6 heures à 22 jours et leurs quarante juments ont servi de donneurs de sang.
Une activité LZM nettement plus faible (p < 0,05) a été trouvée chez des poulains âgés de plus de 24 heures par comparaison avec les valeurs mesurées chez les juments (40,84 U/ ml ± 15,32 et 48,96 U/ml ± 17,9), alors que le rapport LZM/phagocytes fut le même chez les poulains et les juments.
Les phagocytes circulantes de poulains avaient un effet réducteur NBT identique à celui des cellules des juments. Il n'y a pas eu de différence due à l'âge dans cette activité durant les trois premières semaines de vie. On a trouvé une nette corrélation positive chez les juments entre les résultats du test NBT et le moment apriès la mise-bas.
Resumen:
La prueba de reducción con azul de nitrotetrazolio y el ensayo de la lisozima sérica en potros árabes recién nacidos y en yeguas
Se valoró la actividad de la lisozima sérica (LZM) y la capacidad de los fagocitos circulantes para reducir el azul de nitrotetrazolio (NBT) mediante la técnica de lisoplacas respectivamente por medio del método microcuantitativo. Como donadores de sangre sirvieron 47 potros árabes clínicamente sanos de edades comprendidas entre 6 horas y 22 días, y sus 40 yeguas madres.
Una actividad LZM claramente mds baja (P < 0,05) se halló en los potros que eran mayores que 24 horas, en comparación con los valores medidos en las yeguas (40,84 U/ml ± 15,32 y 48,96 U/ml ± 17,9), mientras que la relación LZM/fagocitos era igual en los potros y en las yeguas.
Los fagocitos circulantes de los potros tenían la misma actividad reductora de NBT que las células de las yeguas. Durante las 3 semanas de vida primeras no surgieron diferencias dependientes de la edad en esta actividad, mientras que en las yeguas se halló una correlación positiva clara entre los resultados de la prueba NBT y el tiempo post partum.
Publication Date: 1985-04-01 PubMed ID: 4002936DOI: 10.1111/j.1439-0450.1985.tb01964.xGoogle Scholar: Lookup
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- Journal Article
Summary
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The research article explores the behavior of nitroblue tetrazolium (NBT) reduction capacity and serum lysozyme (LZM) activity in newborn Arabian foals and their mothers. Results reveal that LZM activity in foals over 24 hours is significantly lower than in mares, but the ratio of LZM to phagocyte was similar in both groups.
Study Participants and Approach
- The study was conducted on 47 clinically normal Arabian foals ranging in age from 6 hours to 22 days, along with their 40 dams (mothers).
- Both serum lysozyme (LZM) activity and nitroblue tetrazolium (NBT) reduction capacity of circulating phagocytes were determined in the participants using specific techniques.
- The lysoplate technique was used for assessing the LZM activity, while the microquantitative method was used for determining the NBT reduction capacity.
Results on Serum Lysozyme Activity
- The research found that foals older than 24 hours demonstrated significantly lower serum LZM activity compared to the adult mares (40.84 U/ml ± 15.32 and 48.96 U/ml ± 17.9, respectively).
- Although the LZM activity was lower in foals, the ratio of LZM to phagocyte was found to be similar in both foals and mares, suggesting comparable functionality of the immune response.
Results on Nitroblue Tetrazolium Reduction Capacity
- The study examined the nitroblue tetrazolium (NBT) reduction capacity, an aspect used to determine the functional ability of phagocytes, or the cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells.
- It was observed that the NBT reduction potency of circulating phagocytes in foals was quite similar to that of the mares, indicating that the newborns’ innate immune response is fully developed at birth.
- No age-related changes in this capacity were noted during the foals’ first 3 weeks of life.
- However, in mares, a significant positive correlation was noted between the results of the NBT test and time after parturition, indicating an increase in this capacity post birth.
Cite This Article
APA
Frymus T, Degórski A, Kowalski B, Crisman M.
(1985).
Nitroblue tetrazolium reduction test and serum lysozyme assay in newborn Arabian foals and mares.
Zentralbl Veterinarmed B, 32(4), 280-286.
https://doi.org/10.1111/j.1439-0450.1985.tb01964.x Publication
Researcher Affiliations
MeSH Terms
- Age Factors
- Animals
- Animals, Newborn
- Female
- Horses / immunology
- Immunity, Innate
- Male
- Muramidase / blood
- Nitroblue Tetrazolium / metabolism
- Phagocytes / metabolism
- Postpartum Period
- Pregnancy
- Tetrazolium Salts / metabolism
Citations
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