Studies on the supply of immunoglobulin G to newborn camel calves (Camelus dromedarius)

2001 ◽  
Vol 68 (1) ◽  
pp. 1-7 ◽  
Author(s):  
ROLF KAMBER ◽  
ZAKARIA FARAH ◽  
PETER RUSCH ◽  
MICHAEL HASSIG
Keyword(s):  
Immunoglobulin G ◽  
Management Practice ◽  
Passive Immunization ◽  
Critical Value ◽  
Early Mortality ◽  
Life Evaluation ◽  
Newborn Calves ◽  
Calf Mortality ◽  
Igg Level ◽  
Poor Management

A major problem in camel productivity is the high mortality rate of camel calves in the first 3 months. The causes for mortality are mainly poor management practice and infectious diseases. The purpose of this research, carried out on a ranch in Kenya, was to determine the immunoglobulin G (IgG) concentration in camel colostrum as well as the extent of the calves' passive immunization by maternal antibodies. IgG concentration in colostrum and in the serum of the calf were measured during the first 3 d of life. Evaluation was carried out by comparing the respective values with those for horses and cattle. The average IgG concentration in the camel colostrum was higher than that found in literature for horses and cattle. IgG concentration in the serum of the camel calves reached its maximum 24 h after birth. In 39% of the examined calves, this maximum concentration was below 4 g/l, which is considered to be the critical value in horses and cattle. 61% of the calves achieved an IgG concentration of over 4 g/l. Since there is no correlation between IgG level in colostrum and early mortality, the results indicate that low colostrum intake during the first 24 h of life and not low IgG concentration in colostrum is presumably one of the main causes of early calf mortality. Therefore, it was recommended that the care of the newborn calves by herdsmen should be improved.

scholarly journals Selenium Addition to Colostrum Increases Immunoglobulin G Absorption by Newborn Calves

2007 ◽  
Vol 90 (12) ◽  
pp. 5665-5670 ◽  
Author(s):  
H. Kamada ◽  
I. Nonaka ◽  
Y. Ueda ◽  
M. Murai
Keyword(s):  
Immunoglobulin G ◽  
Newborn Calves

Serum Immunoglobulin G level and Neutrophils to Lymphocytes Ratio Associated with the Prognosis of Neuromyelitis Optica Spectrum Disorder

2021 ◽  
Vol 18 ◽  
Author(s):  
Ying Tong ◽  
Li Wang ◽  
Kai Liu ◽  
Weishi Liu ◽  
Shen Li ◽  
...  
Keyword(s):  
Cerebrospinal Fluid ◽  
Neuromyelitis Optica ◽  
Immunoglobulin G ◽  
Peripheral Blood ◽  
Spectrum Disorder ◽  
Neuromyelitis Optica Spectrum Disorder ◽  
Positive Group ◽  
Serum Igg ◽  
High Level ◽  
Igg Level

Objective: To investigate the factors related to the prognosis of neuromyelitis optica spectrum disorder (NMOSD) in cerebrospinal fluid and peripheral blood examination. Methods: In this study, we collected 111 patients who were admitted to the First Affiliated Hospital of Zhengzhou University between January 2016 and January 2018 and diagnosed with NMOSD. The patients were divided into the relapse group (n=48) and remission group (n=67). Before treatment, all the patients underwent a routine cerebrospinal fluid (CSF) and peripheral blood test on the second morning of admission. The association between laboratory data and disease prognosis was evaluated. Results: The immunoglobulin G (IgG) level in the serum showed a strong correlation with the relapse of patients, especially in the aquaporin-4-Antibody (AQP4-Ab) positive group (p<0.01). A high level of serum IgG concentration was associated with the relapse of NMOSD, especially in the anti-AQP4 positive group. The area under the receiver operating characteristic (ROC) curve of serum IgG level was 0.888 (p0.001, 95%CI: 0.808-0.968). The ratio of neutrophils to lymphocytes (NLR) was associated with the disability degree of NMOSD patients in 3 years. The NLR value was a linear correlation with final Expanded Disability Status Scale (EDSS) scores. Patients with a high level of NLR value presented an increased degree of disability in the following three years (R2=0.053, p=0.015). Conclusion: The serum IgG level and NLR of first-attack patients were correlated with the prognosis of NMOSD.

scholarly journals Colostrum composition and immunoglobulin G content in dairy and dual-purpose cattle breeds

2020 ◽  
Vol 98 (8) ◽  
Author(s):  
Evelyne C Kessler ◽  
Rupert M Bruckmaier ◽  
Josef J Gross
Keyword(s):  
Dairy Cows ◽  
Immunoglobulin G ◽  
Passive Immunization ◽  
Mature Milk ◽  
Dual Purpose ◽  
Cattle Breeds ◽  
Holstein Friesian ◽  
Essential Components ◽  
Dual Purpose Cattle ◽  
And Performance

Abstract Immunoglobulins (Ig) are essential components in the colostrum of bovine species that enable passive immunization of newborn calves. Concentrations of fat and protein are greater in colostrum compared with mature milk and represent a vital source of energy and nutrients. Colostral IgG was shown to vary between individual dairy cows, but comparative data on different breeds and performance levels are scarce. The objective of the present field study was to investigate the contents of total IgG, fat, protein, and lactose in colostrum in different Swiss and German dairy and dual-purpose breeds. We collected colostrum samples of 458 cows of 13 different breeds (dairy breeds: Brown Swiss, Swiss and German Holstein Friesian, and New Zealand Holstein; dual-purpose breeds: German Fleckvieh, Holstein Friesian × Montbéliarde, Montbéliarde, Murnau-Werdenfels, Original Braunvieh, Pinzgauer, Rhetic Gray, and Simmental; and beef-type crossbred: Charolais × Holstein Friesian). Colostrum samples were obtained between 5 and 900 min after calving and analyzed for total IgG, fat protein, and lactose contents. Immunoglobulin G concentrations varied between 12.7 and 204.0 mg/mL. No effect of breeding purpose (i.e., dairy or dual-purpose) nor of previous lactation yield on IgG content was observed. However, milking of cows for the first time later than 12 h after parturition resulted in lower colostrum IgG concentrations compared with colostrum harvest within 9 h after calving (P &lt; 0.05). Multiparous cows had a higher colostral IgG concentration than primiparous cows (P &lt; 0.0001). Overall, concentrations of IgG and other constituents in colostrum varied widely in the different cattle breeds. High-yielding dairy cows did not have poorer colostrum quality compared with lower-yielding animals or beef and dual-purpose breeds, which suggests an individually different transfer of circulating IgG into colostrum.

Effects of omeprazole and pantoprazole on immunoglobulin G absorption in the newborn calves

2012 ◽  
Vol 23 (1) ◽  
pp. 33-37
Author(s):  
Mohammad Reza Shirazi ◽  
Mohammad Nouri ◽  
Masoud Ghorbanpour Najaf Abadi ◽  
Peter D. Constable
Keyword(s):  
Immunoglobulin G ◽  
Newborn Calves

scholarly journals Short communication: Effect of difructose anhydride III on serum immunoglobulin G concentration in newborn calves

2012 ◽  
Vol 95 (9) ◽  
pp. 5336-5339 ◽  
Author(s):  
T. Sato ◽  
M. Hanada ◽  
M. Ohtani ◽  
T. Nakai ◽  
M. Teramura ◽  
...  
Keyword(s):  
Immunoglobulin G ◽  
Short Communication ◽  
Serum Immunoglobulin ◽  
Newborn Calves ◽  
Communication Effect

scholarly journals Ovarian Localization of Immunoglobulin G and Inhibin .ALPHA.-Subunit in Guinea Pigs after Passive Immunization against the Inhibin .ALPHA.-Subunit.

2000 ◽  
Vol 46 (5) ◽  
pp. 293-299 ◽  
Author(s):  
FangXiong SHI ◽  
Keiji MOCHIDA ◽  
Osamu SUZUKI ◽  
Junichiro MATSUDA ◽  
Atsuo OGURA ◽  
...  
Keyword(s):  
Immunoglobulin G ◽  
Guinea Pigs ◽  
Passive Immunization ◽  
Alpha Subunit

scholarly journals SARS-CoV-2 Reinfection in Patients Negative for Immunoglobulin G Following Recovery from COVID-19

2020 ◽  
Author(s):  
Ayad M. Ali ◽  
Kameran Mohammed Ali ◽  
Mohammed Hassan Fatah ◽  
Hassan Mohammad Tawfeeq ◽  
Hassan Muhammad Rostam
Keyword(s):  
Severe Acute Respiratory Syndrome ◽  
Immunoglobulin G ◽  
Neutralising Antibodies ◽  
Initial Recovery ◽  
The Impact ◽  
Igg Level

AbstractWhile many patients infected by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) eventually produce neutralising antibodies, the degree of susceptibility of previously infected individuals to reinfection by SARS-CoV-2 is currently unknown. To better understand the impact of the immunoglobulin (IgG) level on reinfection in recovered coronavirus disease 2019 (COVID-19) patients, IgG levels against SARS-CoV-2 were measured in 829 patients with previously confirmed infection just after their recovery. Notably, 87 of these patients had no detectable IgG concentration. While there was just one case of asymptomatic reinfection 4.5 months after the initial recovery amongst patients with detectable IgG levels, 25 of the 87 patients negative for IgG were reinfected within one to three months after their first infection. Therefore, patients who recover from COVID-19 with no detectable IgG concentration appear to remain more susceptible to reinfection by SARS-CoV-2, with no apparent immunity. Also, although our results suggest the chance is lower, the possibility for recovered patients with positive IgG findings to be reinfected similarly exists.

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