scholarly journals Evaluation of Acute Phase Proteins in Clinically Healthy Dairy Cows in Perinatal Period and During Lactation

2016 ◽  
Vol 19 (3) ◽  
pp. 519-523 ◽  
Author(s):  
B. Dębski ◽  
T. Nowicki ◽  
W. Zalewski ◽  
M. Ochota ◽  
J. Mrowiec ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Acute Phase ◽  
Acute Phase Proteins ◽  
Animal Health ◽  
Good Method ◽  
Perinatal Period ◽  
Reactive Protein ◽  
Stage Of Lactation ◽  
West Part ◽  
Pregnancy And Lactation

Abstract The estimation of acute phase proteins (APP), which are recognized as inflammation markers is a good method for animal health monitoring. Several factors such as obesity, age and sex are also known to modulate APP status. We evaluated the influence of pregnancy and lactation in 65 clinically healthy dairy Holstein-Friesian dairy cows, 2nd÷4th lactation, chosen from 3 different dairy farms located in South West part of Poland. Bovine C-reactive protein (CRP), haptoglobin and fibrinogen were assayed using commercial ELISA kits. The highest values of CRP and haptoglobin were observed in cows during the first month after calving. The highest concentrations of fibrinogen was found in a group of cows prior to expected date of parturition and the level of this protein in blood plasma was decreasing during lactation. The significant differences of analyzed APPs among cows before delivery, during first month after calving and in lactation (1-3 months after delivery) suggested that factors like pregnancy and stage of lactation would have an influence on their concentration.

Early post parturient changes in milk acute phase proteins

2016 ◽  
Vol 83 (3) ◽  
pp. 352-359 ◽  
Author(s):  
Funmilola C Thomas ◽  
Mary Waterston ◽  
Peter Hastie ◽  
Hayley Haining ◽  
P David Eckersall
Keyword(s):  
Dairy Cows ◽  
Acute Phase ◽  
Acute Phase Proteins ◽  
Critical Periods ◽  
Intramammary Infections ◽  
Reactive Protein ◽  
Milk Samples ◽  
Periparturient Period ◽  
Holstein Friesian ◽  
Low Levels

The periparturient period is one of the most critical periods in the productive life of a dairy cow, and is the period when dairy cows are most susceptible to developing new intramammary infections (IMI) leading to mastitis. Acute phase proteins (APP) such as haptoglobin (Hp), mammary associated serum amyloid A3 (M-SAA3) and C-reactive protein (CRP) have been detected in milk during mastitis but their presence in colostrum and milk in the immediate postpartum period has had limited investigation. The hypothesis was tested that APP are a constituent of colostrum and milk during this period. Enzyme linked immunosorbent assays (ELISAs) were used to determine each APP's concentration in colostrum and milk collected daily from the first to tenth day following calving in 22 Holstein-Friesian dairy cows. Haptoglobin was assessed in individual quarters and composite milk samples while M-SAA3 and CRP concentration were determined in composite milk samples. Change in Hp in relation to the high abundance proteins during the transition from colostrum to milk were evaluated by 1 and 2 dimension electrophoresis and western blot. In 80% of the cows all APPs were detected in colostrum on the first day following parturition at moderately high levels but gradually decreased to minimal values in the milk by the 6th day after calving. The remaining cows (20%) showed different patterns in the daily milk APP concentrations and when an elevated level is detected could reflect the presence of IMI. Demonstration that APP are present in colostrum and milk following parturition but fall to low levels within 4 days means that elevated APP after this time could be biomarkers of post parturient mastitis allowing early intervention to reduce disease on dairy farms.

Variations in the levels of acute-phase proteins and lactoferrin in serum and milk during bovine subclinical mastitis

2021 ◽  
pp. 1-5
Author(s):  
Aarsha Raj ◽  
Vinodkumar Kulangara ◽  
Tresamol P. Vareed ◽  
Deepa P. Melepat ◽  
Latha Chattothayil ◽  
...  
Keyword(s):  
Acute Phase ◽  
Acute Phase Proteins ◽  
Solid Phase ◽  
Bovine Mastitis ◽  
Subclinical Mastitis ◽  
Clinical Mastitis ◽  
Reactive Protein ◽  
Amyloid A ◽  
California Mastitis Test ◽  
Bacterial Organism

Abstract Variations in the levels of acute phase proteins and lactoferrin in serum and milk for diagnosis of subclinical mastitis in dairy cows are described in this research paper. Milking animals from two organized dairy farms in Kerala, India, were screened by California Mastitis Test (CMT), Electrical Conductivity test (EC) and Somatic Cell Count (SCC) test to identify animals affected with sub clinical mastitis (SCM). The concentrations of acute phase proteins (APP) Haptoglobin (Hp), C- reactive protein (CRP), Albumin, Lactoferrin (Lf) and α- 1 acid glycoprotein (AGP) in milk and Hp, Albumin, Serum Amyloid A (SAA) and CRP in the serum of 40 normal cows and 40 cows affected with sub clinical mastitis were assessed. Solid phase ELISA was employed for assessment of all parameters except the albumin levels, for which spectrophotometry was used. The values of Hp in milk; and SAA, AGP and Lf in serum, were significantly elevated in the group with sub clinical mastitis. Such variations were found to be independent of the specific bacterial organism causing the disease. These results show that significant variations exist in the levels of acute phase proteins Hp, AGP and Lf in milk, and SAA in serum of animals affected with subclinical bovine mastitis that are not affected by specific bacterial etiology.

scholarly journals Acute Phase Proteins as Biomarkers in Animal Health and Welfare

10.5772/19166 ◽  
2011 ◽  
Author(s):  
Jaime Gomez-Laguna ◽  
Francisco J. ◽  
Francisco J. ◽  
Irene M. ◽  
Inmaculada Barranco ◽  
...  
Keyword(s):  
Acute Phase ◽  
Acute Phase Proteins ◽  
Animal Health

scholarly journals Evaluation of Plasmatic Levels of Negative and Positive Acute Hepatic Phase Proteins in Patients who Underwent Major Surgery

2019 ◽  
Vol 70 (11) ◽  
pp. 3947-3953
Author(s):  
Laura Nicolescu ◽  
Bogdan Totolici ◽  
Ovidiu Bedreag ◽  
Cristian Nicolescu ◽  
Alin Mihu
Keyword(s):  
Acute Phase ◽  
Acute Phase Proteins ◽  
Major Surgery ◽  
P Value ◽  
Time Intervals ◽  
Reactive Protein ◽  
Pearson Coefficient ◽  
Simultaneous Decrease ◽  
Correlation Tests ◽  
The Moment

The acute hepatic phase response is defined as a reaction that includes hepatic synthesis of proteins, consisting in the increase of some proteins called positive acute phase proteins and the simultaneous decrease of others called negative acute phase proteins. This study describes this hepatic reaction, based on a series of consecutive determinations, at three different time intervals (right before a major surgery event, 24 and 48 hours after the intervention), of the plasmatic levels of transferrin, albumin, fibrinogen and C reactive protein (CRP). Subsequently, the data was analyzed using Jamovi 2019, version 0.9. The inferential statistics consisted in calculating an ANOVA test that compared the values at 24 hours and 48 hours versus the values right before the major surgery. The results were validated by calculating the p value (p[0.05) as well as conducting correlation tests by determining the Pearson coefficient which shows the values of CRP, fibrinogen, transferrin and albumin are independent of each other and do not interact. The multiple ANOVA comparative test reveals the lack of interaction between the values of determined proteins, regardless of the moment of determination.

The acute phase response and C-reactive protein

2020 ◽  
pp. 2199-2207
Author(s):  
Mark B. Pepys
Keyword(s):  
Acute Phase ◽  
Acute Phase Response ◽  
Serum Amyloid A ◽  
Acute Phase Proteins ◽  
Phase Response ◽  
Serum Amyloid ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Amyloid A ◽  
Serum Amyloid A Protein

The acute phase response—trauma, tissue necrosis, infection, inflammation, and malignant neoplasia induce a complex series of nonspecific systemic, physiological, and metabolic responses including fever, leucocytosis, catabolism of muscle proteins, greatly increased de novo synthesis and secretion of a number of ‘acute phase’ plasma proteins, and decreased synthesis of albumin, transthyretin, and high- and low-density lipoproteins. The altered plasma protein concentration profile is called the acute phase response. Acute phase proteins—these are mostly synthesized by hepatocytes, in which transcription is controlled by cytokines including interleukin 1, interleukin 6, and tumour necrosis factor. The circulating concentrations of complement proteins and clotting factors increase by up to 50 to 100%; some of the proteinase inhibitors and α‎1-acid glycoprotein can increase three- to fivefold; but C-reactive protein (CRP) and serum amyloid A protein (an apolipoprotein of high-density lipoprotein particles) are unique in that their concentrations can change by more than 1000-fold. C-reactive protein—this consists of five identical, nonglycosylated, noncovalently associated polypeptide subunits. It binds to autologous and extrinsic materials which contain phosphocholine, including bacteria and their products. Ligand-bound CRP activates the classical complement pathway and triggers the inflammatory and opsonizing activities of the complement system, thereby contributing to innate host resistance to pneumococci and probably to recognition and safe ‘scavenging’ of cellular debris. Clinical features—(1) determination of CRP in serum or plasma is the most useful marker of the acute phase response in most inflammatory and tissue damaging conditions. (2) Acute phase proteins may be harmful in some circumstances. Sustained increased production of serum amyloid A protein can lead to the deposition of AA-type, reactive systemic amyloid.

scholarly journals Acute phase proteins in bitches subjected to conventional and minimally invasive ovariohysterectomy

2018 ◽  
Vol 38 (11) ◽  
pp. 2124-2128 ◽  
Author(s):  
Elizabeth M.S. Schmidt ◽  
Camila P. Rubio ◽  
Funmilola Thomas ◽  
João C.P. Ferreira ◽  
David P. Eckersall
Keyword(s):  
Minimally Invasive ◽  
Acute Phase ◽  
Acute Phase Proteins ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Serum Haptoglobin ◽  
Hemoglobin Binding ◽  
Mixed Breed ◽  
Significant Difference ◽  
Haptoglobin Concentration

ABSTRACT: The aim of this study was to evaluate and to compare the possible inflammatory changes by screening acute phase proteins concentrations in healthy bitches subjected to ovariohysterectomy. Minimally invasive and conventional (laparotomy) ovariohysterectomies were performed in 17 client-owned adult female mixed breed dogs. Nine animals were subjected to minimally invasive and eight animals to conventional ovariohysterectomy. Blood samples were taken before surgery, 24, 48 hours, and seven days postoperatively. Serum C-reactive concentration was determined by a commercial ELISA kit and serum haptoglobin concentration was measured via hemoglobin binding assay, both previously validated for use in dogs. As the data did not meet the normal distribution criteria, the nonparametric Kruskall-Wallis was performed to compare quantitative variables between groups. One-way ANOVA and the Friedman test were used for multiple comparisons between time points, with a P<0.05 considered significant. C-reactive protein concentration was significantly different (P<0.0001) at 24 hours postoperatively between groups. There was no significant difference in haptoglobin concentration between groups. C-reactive protein and haptoglobin concentrations were significantly different at 24 and 48 hours postoperatively for minimally invasive and conventional ovariohisterectomies. These findings provided an overview of the short-term inflammatory effects produced by minimally invasive and conventional ovariohysterectomies.

scholarly journals Luminometric assays of seven acute-phase proteins in minimal volumes of serum, plasma, sputum, and bronchioalveolar lavage.

1986 ◽  
Vol 32 (5) ◽  
pp. 743-747 ◽  
Author(s):  
J Braun ◽  
T Schultek ◽  
K F Tegtmeier ◽  
A Florenz ◽  
C Rohde ◽  
...  
Keyword(s):  
Acute Phase ◽  
Acute Phase Proteins ◽  
Immunoglobulin A ◽  
C Reactive Protein ◽  
Acid Glycoprotein ◽  
Reactive Protein ◽  
Coefficients Of Variation ◽  
Alpha 1 Antitrypsin ◽  
Heel Prick ◽  
Secretory Immunoglobulin

Abstract We describe immunoluminometric assays for seven acute-phase proteins, which can be determined in minimal volumes of plasma, serum, sputum, and bronchioalveolar lavage. The theoretical volume of serum or plasma required to measure all seven analytes in duplicate is 130 nL, although in practice the smallest volume of sample was enough to fill a hematocrit tube (about 25 microL of blood), collected from neonates by the heel-prick method. The assays could be performed with 10 microL of sputum or with 100 microL of bronchioalveolar lavage. We measured alpha 1-antitrypsin, alpha 2-macroglobulin, alpha 1-acid glycoprotein, thyroxin-binding prealbumin, C-reactive protein, and total and secretory immunoglobulin A. The assays are rapid enough for all results to be returned to the ward on the same day and are suitable for monitoring neonatal sepsis. All coefficients of variation, derived from compound precision profiles, were less than 7% for clinically relevant analyte concentrations. Correlation with commercially available nephelometric assays was good.

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