scholarly journals Acute phase proteins in cats

2019 ◽  
Vol 49 (4) ◽  
Author(s):  
Rita Mourão Rosa ◽  
Lisa Alexandra Pereira Mestrinho
Keyword(s):  
Acute Phase ◽  
Serum Amyloid A ◽  
Acute Phase Proteins ◽  
Cell Damage ◽  
Clinical Signs ◽  
Blood Parameters ◽  
Acid Glycoprotein ◽  
Amyloid A ◽  
Clinical Interest ◽  
Technical Simplicity

ABSTRACT: Acute phase proteins (APP) are proteins synthesized and released largely by hepatocytes upon the occurrence of cell damage or invasion by microorganisms. This article reviews the use of APP in feline diseases, identifying their usefulness in the clinical setting, analyzing 55 published papers. Serum amyloid A, alpha-1 acid glycoprotein, and haptoglobin are the indicators pointed out by the authors as useful in monitoring the acute inflammatory response in cats. Although, APP measurement is still not routinely used in veterinary medicine, together with clinical signs and other blood parameters, was of clinical interest and applicability in diseases such as feline infectious peritonitis, pancreatitis, renal failure, retroviral and Calicivirus infections. Although, there are commercially available kits for dosing feline APP, assay standardization aiming technical simplicity, more species specificity and with less associated costs will allow routine use in feline practice, as it is done in the human field.

scholarly journals THE EFFECTS OF STRESS ON ACUTE PHASE PROTEINS OF CATTLE

2016 ◽  
Vol 18 (4(72)) ◽  
pp. 107-113
Author(s):  
S.M. Sevgisunar ◽  
S. Şahinduran
Keyword(s):  
Acute Phase ◽  
Serum Amyloid A ◽  
Acute Phase Proteins ◽  
Clinical Signs ◽  
Stress Factors ◽  
Stress Effect ◽  
Hormonal Changes ◽  
Acid Glycoprotein ◽  
Amyloid A ◽  
Inflammatory Processes

Stress occurs with the pressure of external and internal (infectious or non–infectious) causes which forces change in animals. This stress not only emerge with behavioral or clinical signs, but also will result with immune response formed by body. Understanding and evaluating this subclinic response is also possible with the help of Acute Phase Proteins (APP–AFP) which are released by tissues and organs when exposed to external and internal changes as well as known hormonal changes. Cattle are fed because of their economical importance and the inflammatory processes have influence on their yield levels. Because the stress is laying under all these health problems, also it is getting attention how stress effect the animals. Stress can be divided into main four groups: physical (mechanical), inflammatory (infectious), behavioral and other stress factors. The main APPs which all groups mostly using in their studies are serum amyloid A (SAA) haptoglobin (Hp), ceruloplasmin (Cp), fibrinogen (Fb), lipopolisakkarit binding protein (LBP) ve α1–Acid Glycoprotein (AGP).

scholarly journals Serum acute phase proteins in Dirofilaria immitis and Wolbachia seropositive cats

2016 ◽  
Vol 19 (6) ◽  
pp. 693-696 ◽  
Author(s):  
Ana C Silvestre-Ferreira ◽  
Lisete Vieira ◽  
Hugo Vilhena ◽  
Jose J Cerón ◽  
Asta Tvarijonaviciute ◽  
...  
Keyword(s):  
Acute Phase ◽  
Dirofilaria Immitis ◽  
Serum Amyloid A ◽  
Acute Phase Proteins ◽  
Clinical Signs ◽  
Serum Amyloid ◽  
Amyloid A ◽  
Antibody Titres

Objectives The aim of this study was to characterise the response of acute phase proteins (APPs) in cats seropositive for Dirofilaria immitis and to its endosymbiont bacterium Wolbachia. Methods The APPs serum amyloid A (SAA), haptoglobin (Hp) and ceruloplasmin (Cp) were measured in 25 seropositive cats and in 16 healthy seronegative cats. Results SAA and Cp concentrations were significantly higher in animals with D immitis seropositivity that exhibited clinical signs related to the disease, and Hp was elevated in all D immitis-seropositive animals. There was no significant correlation between APPs and D immitis or Wolbachia species antibody titres. Conclusions and relevance An association between feline seropositivity to D immitis and APP response was demonstrated. Increases in serum SAA and Cp concentrations were related to D immitis-associated clinical signs, whereas Hp increased in all seropositive animals.

Usefulness of acute phase proteins in differentiating between feline infectious peritonitis and other diseases in cats with body cavity effusions

2016 ◽  
Vol 19 (8) ◽  
pp. 809-816 ◽  
Author(s):  
Katarina Hazuchova ◽  
Susanne Held ◽  
Reto Neiger
Keyword(s):  
Machine Learning ◽  
Game Theory ◽  
Acute Phase ◽  
Cardiac Disease ◽  
Serum Amyloid A ◽  
Acute Phase Proteins ◽  
Body Cavity ◽  
Feline Infectious Peritonitis ◽  
Acid Glycoprotein ◽  
Amyloid A

Objectives The aim of this study was to evaluate the measurement of acute phase proteins (APPs) as a diagnostic tool to differentiate between feline infectious peritonitis (FIP) and other diseases in cats with body cavity effusions. Methods Cats with pleural, abdominal or pericardial effusion were prospectively enrolled. Cats were classified as having or not having FIP based on immunohistochemistry (if available) or a sophisticated statistical method using machine learning methodology with concepts from game theory. Cats without FIP were further subdivided into three subgroups: cardiac disease, neoplasia and other diseases. Serum amyloid A (SAA), haptoglobin (Hp) and α1-acid glycoprotein (AGP) were measured in serum and effusion, using assays previously validated in cats. Results Serum and effusion samples were available for the measurement of APPs from 88 and 67 cats, respectively. Concentrations of the APPs in serum and effusion were significantly different in cats with and without FIP ( P <0.001 for all three APPs). The best APP to distinguish between cats with and without FIP was AGP in the effusion; a cut-off value of 1550 µg/ml had a sensitivity and specificity of 93% each for diagnosing FIP. Conclusions and relevance AGP, particularly if measured in effusion, was found to be useful in differentiating between FIP and other diseases, while SAA and Hp were not. The concentration of all three APPs in some diseases (eg, septic processes, disseminated neoplasia) was as high as in cats with FIP; therefore, none of these can be recommended as a single diagnostic test for FIP.

scholarly journals Serum concentrations of some acute phase proteins in cats with anaemia

2018 ◽  
Vol 74 (1) ◽  
pp. 5998-2018
Author(s):  
GÜLTEN EMEK TUNA ◽  
CEREN DINLER ◽  
GAMZE SEVRI EKREN AŞICI ◽  
BÜLENT ULUTAŞ
Keyword(s):  
Haemolytic Anaemia ◽  
Acute Phase ◽  
Serum Amyloid A ◽  
Acute Phase Proteins ◽  
Serum Amyloid ◽  
Serum Concentrations ◽  
Healthy Group ◽  
Acid Glycoprotein ◽  
Amyloid A ◽  
Serum Haptoglobin

Serum concentrations of acute phase proteins can provide valuable diagnostic information in the detection and monitoring of disease. The available information on the acute phase response in cats with anaemia is limited. The aim of this study was to retrospectively evaluate serum concentrations of haptoglobin, serum amyloid A, α1 acid glycoprotein and their clinical importance in cats with anaemia. Thirty-four anaemic cats and ten healthy cats were enrolled this study. After individual diagnoses had been established, the cats were divided into three groups (healthy group, haemolytic group and non-haemolytic group). Serum acute phase protein concentrations were analysed using specific commercially available test kits in an ELISA reader device. Serum amyloid A and serum α1 acid glycoprotein concentrations were significantly higher in the anaemic groups compared with the healthy group. Haptoglobin concentrations were significantly higher in cats from the non-haemolytic anaemia group than they were in healthy animals and those from the haemolytic anaemia group. Although serum haptoglobin concentrations were lower than in the healthy group, there was no significant difference between the haemolytic anaemia group and the healthy group. The results of this study suggest that serum amyloid A and α1 acid glycoprotein could be useful in the diagnosis and determination of inflammation in cats with anaemia. Serum haptoglobin depletion may be used for diagnosis of haemolysis in cats with haemolytic anaemia. In addition, this study has contributed to the limited data available on acute phase protein concentrations in cats with anaemia..

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.

Abstract B87: Acute-phase proteins (C-reactive protein and Serum Amyloid A) and post-diagnosis mammographic density in breast cancer survivors

2012 ◽  
Vol 5 (11 Supplement) ◽  
pp. B87-B87
Author(s):  
Anne Dee ◽  
Roberta McKean-Cowdin ◽  
Anne McTiernan ◽  
Richard N. Baumgartner ◽  
Kathy B. Baumgartner ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Survivors ◽  
Mammographic Density ◽  
Acute Phase ◽  
Breast Cancer Survivors ◽  
Serum Amyloid A ◽  
Acute Phase Proteins ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Amyloid A

scholarly journals Serum concentrations of acute phase proteins and immunoglobulins of calves with rotavirus diarrhea

2016 ◽  
Vol 68 (4) ◽  
pp. 865-872 ◽  
Author(s):  
T.G. Rocha ◽  
F.D.F. Silva ◽  
C. Bortoletto ◽  
D.G. Silva ◽  
M.G. Buzinaro ◽  
...  
Keyword(s):  
Acute Phase ◽  
Serum Proteins ◽  
Acute Phase Proteins ◽  
Clinical Signs ◽  
Least Square ◽  
Serum Concentrations ◽  
Fecal Samples ◽  
Acid Glycoprotein ◽  
Group B ◽  
Rotavirus Diarrhea

ABSTRACT The aim of the present study was to characterize changes in acute phase protein levels according to the occurrence of rotavirus diarrhea in calves in the first month of life. Blood and fecal samples were taken before colostrum intake and at 1, 2, 7, 15, 21 and 30 days of age from 24 Holstein calves allotted in three experimental groups: calves that did not present diarrhea (group A), calves that presented diarrhea, but tested negative for rotavirus in feces (group B), and calves that presented diarrhea and tested positive for rotavirus in feces (group C) (experiment 1). When the animals presented episodes of diarrhea, blood and fecal samples were taken at 24-hour intervals until the end of clinical signs (experiment 2). Serum proteins were separated by SDS-PAGE technique and rotavirus in feces was detected by PAGE. Data of experiment 1 were analyzed by ANOVA and Tukey's test, considered significant at P<0.05. Data of experiment 2 were subjected to the HSD test. Total protein, globulins, and IgG concentrations were lower in group C than in groups A and B. Ceruloplasmin and transferrin levels were higher in group C than in groups A and B. Serum concentrations of haptoglobin and α1-acid glycoprotein did not differ significantly between groups throughout the experimental period. Calves presented diarrhea between 10.4 and 14.6 days of age in group B, and between 10.3 and 14.6 days of age in group C. In the moments of diarrhea manifestation, least square means of IgA, haptoglobin and α1-acid glycoprotein concentrations did not differ significantly between groups B and C, but ceruloplasmin and transferrin concentrations were higher in group C than in group B, as opposed to what occurred with IgG levels. These findings show that optimizing passive immunity transfer of immunoglobulins decrease the likelihood of calves developing diarrhea caused by rotavirus. In addition, ceruloplasmin presents characteristics of a biomarker of rotavirus infection in calves.

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