scholarly journals Is ACOS an independent nosology? Clinical signs and diagnosis of ACOS

2018 ◽  
Vol 28 (5) ◽  
pp. 519-529 ◽  
Author(s):  
G. B. Fedoseev ◽  
V. I. Trofimov ◽  
K. V. Negrutsa ◽  
V. G. Timchik ◽  
V. I. Golubeva ◽  
...  
Keyword(s):  
Lung Function ◽  
Clinical Signs ◽  
Blood Levels ◽  
Healthy Individuals ◽  
Igg Antibody ◽  
Bacterial Antigens ◽  
Antibody Levels ◽  
Neisseria Perflava ◽  
Ig G ◽  
And Staphylococcus Aureus

The aim of this study was to analyze inflammation features and possible causes of asthma-COPD overlap syndrome (ACOS). Methods. Clinical examination was performed for all patients included in the study. Blood levels of alpha-1-antitripsin (AAT), immunoglobulin (Ig) G and E antibodies against four bacterial antigens (Streptococcus pneumoniae, Haemophilus influenzae, Neisseria perflava, and Staphylococcus aureus), and lung function were measured in all the patients. Results. The study involved 175 patients including 78 patients with bronchial asthma, 39 patients with ACOS, 38 patients with COPD, and 20 healthy individuals. AAT blood level was reversely related to lung function and to increased IgG-antibody levels against bacterial antigens. Conclusion. Due to this fact, the authors suppose that the ACOS should be considered as an independent nosology distinct from asthma and COPD, and related to microbial inflammation and AAT level.

scholarly journals Distinct Microbial Signatures between Periodontal Profile Classes

2021 ◽  
pp. 002203452110097
Author(s):  
J.T. Marchesan ◽  
K. Moss ◽  
T. Morelli ◽  
F.R. Teles ◽  
K. Divaris ◽  
...  
Keyword(s):  
African Americans ◽  
Periodontal Disease ◽  
Latent Class ◽  
Linear Models ◽  
Severe Disease ◽  
Periodontal Pathogens ◽  
Healthy Individuals ◽  
Igg Antibody ◽  
Serum Igg ◽  
Antibody Levels

Precise classification of periodontal disease has been the objective of concerted efforts and has led to the introduction of new consensus-based and data-driven classifications. The purpose of this study was to characterize the microbiological signatures of a latent class analysis (LCA)–derived periodontal stratification system, the Periodontal Profile Class (PPC) taxonomy. We used demographic, microbial (subgingival biofilm composition), and immunological data (serum IgG antibody levels, obtained with checkerboard immunoblotting technique) for 1,450 adult participants of the Dental Atherosclerosis Risk in Communities (ARIC) study, with already generated PPC classifications. Analyses relied on t tests and generalized linear models with Bonferroni correction. Men and African Americans had higher systemic antibody levels against most microorganisms compared to women and Caucasians ( P < 0.05). Healthy individuals (PPC-I) had low levels of biofilm bacteria and serum IgG levels against most periodontal pathogens ( P < 0.05). Subjects with mild to moderate disease (PPC-II to PPC-III) showed mild/moderate colonization of multiple biofilm pathogens. Individuals with severe disease (PPC-IV) had moderate/high levels of biofilm pathogens and antibody levels for orange/red complexes. High gingival index individuals (PPC-V) showed moderate/high levels of biofilm Campylobacter rectus and Aggregatibacter actinomycetemcomitans. Biofilm composition in individuals with reduced periodontium (PPC-VI) was similar to health but showed moderate to high antibody responses. Those with severe tooth loss (PPC-VII) had significantly high levels of multiple biofilm pathogens, while the systemic antibody response to these microorganisms was comparable to health. The results support a biologic basis for elevated risk for periodontal disease in men and African Americans. Periodontally healthy individuals showed a low biofilm pathogen and low systemic antibody burden. In the presence of PPC disease, a microbial-host imbalance characterized by higher microbial biofilm colonization and/or systemic IgG responses was identified. These results support the notion that subgroups identified by the PPC system present distinct microbial profiles and may be useful in designing future precise biological treatment interventions.

scholarly journals Low Maternal Immunoglobulin G Avidity and Single Parity as Adverse Implications of Human Cytomegalovirus Vertical Transmission in Pregnant Women with Immunoglobulin M Positivity

Viruses ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 866
Author(s):  
Masatoki Kaneko ◽  
Junsuke Muraoka ◽  
Kazumi Kusumoto ◽  
Toshio Minematsu
Keyword(s):  
Risk Factors ◽  
Pregnant Women ◽  
Vertical Transmission ◽  
Human Cytomegalovirus ◽  
Multiple Logistic Regression Analysis ◽  
Clinical Signs ◽  
Immunoglobulin M ◽  
Igg Antibody ◽  
Neurological Sequelae ◽  
Previous Pregnancy

Human cytomegalovirus (CMV) is the leading cause of neurological sequelae in infants. Understanding the risk factors of primary CMV infection is crucial in establishing preventive strategies. Thus, we conducted a retrospective cohort study to identify risk factors of vertical transmission among pregnant women with immunoglobulin (Ig) M positivity. The study included 456 pregnant women with IgM positivity. Information on age, parity, occupation, clinical signs, IgM levels, and IgG avidity index (AI) was collected. The women were divided into infected and non-infected groups. The two groups showed significant differences in IgM level, IgG AI, number of women with low IgG AI, clinical signs, and number of pregnant women with single parity. In the multiple logistic regression analysis, pregnant women with single parity and low IgG AI were independent predictors. Among 40 women who tested negative for IgG antibody in their previous pregnancy, 20 showed low IgG AI in their current pregnancy. Among the 20 women, 4 had vertical transmission. These results provide better understanding of the risk factors of vertical transmission in pregnant women with IgM positivity.

scholarly journals Structural Insight into CVB3-VLP Non-Adjuvanted Vaccine

2020 ◽  
Vol 8 (9) ◽  
pp. 1287
Author(s):  
Minna M. Hankaniemi ◽  
Mo A. Baikoghli ◽  
Virginia M. Stone ◽  
Li Xing ◽  
Outi Väätäinen ◽  
...  
Keyword(s):  
Exchange Chromatography ◽  
Scale Production ◽  
Igg Antibody ◽  
Purification Method ◽  
Microscopy Imaging ◽  
Single Particle Reconstruction ◽  
Enhanced Production ◽  
Chronic Myocarditis ◽  
Flow Filtration ◽  
Antibody Levels

Coxsackievirus B (CVB) enteroviruses are common pathogens that can cause acute and chronic myocarditis, dilated cardiomyopathy, aseptic meningitis, and they are hypothesized to be a causal factor in type 1 diabetes. The licensed enterovirus vaccines and those currently in clinical development are traditional inactivated or live attenuated vaccines. Even though these vaccines work well in the prevention of enterovirus diseases, new vaccine technologies, like virus-like particles (VLPs), can offer important advantages in the manufacturing and epitope engineering. We have previously produced VLPs for CVB3 and CVB1 in insect cells. Here, we describe the production of CVB3-VLPs with enhanced production yield and purity using an improved purification method consisting of tangential flow filtration and ion exchange chromatography, which is compatible with industrial scale production. We also resolved the CVB3-VLP structure by Cryo-Electron Microscopy imaging and single particle reconstruction. The VLP diameter is 30.9 nm on average, and it is similar to Coxsackievirus A VLPs and the expanded enterovirus cell-entry intermediate (the 135s particle), which is ~2 nm larger than the mature virion. High neutralizing and total IgG antibody levels, the latter being a predominantly Th2 type (IgG1) phenotype, were detected in C57BL/6J mice immunized with non-adjuvanted CVB3-VLP vaccine. The structural and immunogenic data presented here indicate the potential of this improved methodology to produce highly immunogenic enterovirus VLP-vaccines in the future.

Short Oral Antibiotic Treatment of Osteomyelitis Questioned

1980 ◽  
Vol 2 (1) ◽  
pp. 18-18
Keyword(s):  
Antimicrobial Therapy ◽  
Oral Therapy ◽  
Initial Period ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Oral Route ◽  
Antimicrobial Treatment ◽  
Blood Levels ◽  
Oral Antibiotic ◽  
Cortical Destruction

Dr. Rothman of Haverhill, MA questioned the short duration of antimicrobial treatment and use of oral route for the patient with osteomyelitis presented by Bennett in PIR 1:153, November 1979. He noted that the traditional regimen for osteomyelitis calls for six weeks of intravenous antimicrobial therapy. Dr. Bennett quotes from Telzlaff et al (J Pediatr 92:485, 1978). In this report good results were found when antimicrobial regimens for patients with osteomyelitis and suppurative arthritis consisted of a brief initial period of parenteral therapy of only one to seven days followed by oral antimicrobial therapy begun when there was a definitive decrease in clinical signs of inflammation and continued for three weeks or longer. It is important to note that surgical drainage of pus was carried out, that antimicrobial blood levels were obtained after initiation of oral therapy to ensure adequate levels, that therapy was continued until all signs and symptoms had subsided, that there was no evidence of cortical destruction or sequestrum formation on roentgenogram, and the erythrocyte sedimentation rate was less than 20 mg/hr. When these conditions are met it is clear that oral therapy can be an adequate substitute for prolonged intravenous therapy for osteomyelitis in children.

PSX-B-22 Humoral factors of protection of the vaginal mucosa in healthy cows and with mycoplasmosis

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 273-273
Author(s):  
Julia V Busharova ◽  
Roman M Vasilev ◽  
Svetlana V Vasileva ◽  
Vyacheslav A Trushkin ◽  
Anastasia A Nikitina ◽  
...  
Keyword(s):  
Immunoglobulin A ◽  
Clinical Signs ◽  
Total Content ◽  
Vaginal Wall ◽  
Vaginal Mucosa ◽  
Vaginal Secretion ◽  
Livestock Farming ◽  
Humoral Factors ◽  
Ig G ◽  
Pcr Test

Abstract Maintaining reproductive health is an urgent task in intensive livestock farming. The study of the influence of pathogens of the Mycoplasmataceae family on the microecology and protective properties of the vagina is of particular interest. The studies were carried out on non-pregnant cows 3–4 years old. Was formed 2 groups of 8 animals each. The first group is healthy cows in which the PCR test for Mycoplasma spp. was negative. The second group - cows with a positive PCR test and serological identification of M. bovigenitalium, without pronounced clinical signs of vaginitis. In both groups of animals, vaginal secretions were collected from the vaginal wall using a special spoon. In secret, by the method of radial immunodiffusion in a gel according to Mancini, the content of immunoglobulins of classes Ig G, Ig M, Ig A and secretory immunoglobulin A (sIgA) was determined, as well as the activity of lysozyme - by the nephelometric method. The study showed that the content of Ig G and the total content of immunoglobulins in the vaginal secretion in healthy cows and cows with mycoplasmosis did not have significant differences. The concentration of Ig A in cows with mycoplasmosis was 0.018±0.001 g/l, which was 25% less than in healthy cows, but it turned out to be insignificant (P &gt; 0.05). The content of Ig M and sIgA in secretion in healthy cows was 0.039±0.002 and 0.067±0.005 g/l, while in cows with mycoplasmosis it significantly increased by 38.5 and 43%, respectively. The activity of lysozyme in the secretion of healthy cows was 11.71±0.41%, while in infected cows it decreased by 2 times. With genital mycoplasmosis in cows, a quantitative redistribution of immunoglobulin classes and a decrease in lysozyme activity are observed in the vaginal secretion.

Measurement of Specific IgG Antibody Levels in Serum of Patients on Regimes Comprising High Total Dose Beta-Lactam Therapy

1986 ◽  
Vol 79 (4) ◽  
pp. 344-348 ◽  
Author(s):  
D. Lee ◽  
Janet M. Dewdney ◽  
R.G. Edwards ◽  
K.A. Neftel ◽  
M. Wälti
Keyword(s):  
Total Dose ◽  
Beta Lactam ◽  
Igg Antibody ◽  
Specific Igg ◽  
Antibody Levels ◽  
High Total Dose

scholarly journals Antibody level of New Zealand children immunized with the triple vaccine DTP (diphtheria-tetanus-pertussis)

1988 ◽  
Vol 101 (2) ◽  
pp. 405-410 ◽  
Author(s):  
R. C. H Lau
Keyword(s):  
New Zealand ◽  
Immunosorbent Assay ◽  
Antibody Level ◽  
Herd Immunity ◽  
Enzyme Linked Immunosorbent Assay ◽  
Igg Antibody ◽  
Immunization Strategy ◽  
The Mean ◽  
Antibody Levels

SUMMARYEnzyme-linked immunosorbent assay (ELISA) tests were used to measure IgG antibody levels in 2638 New Zealand children who had been immunized with the triple vaccine DTP. The percentage of children immune to diphtheria decreased with age. The percentage of children immune to tetanus varied from 67.1 to 55.0%. The percentage of children with measurable antibody to pertussis increased with age. The mean percentages of children with measurable antibody or immunity to one or more DTP components were 34.2% (with 3 components), 34.4% (2 components), and 78.1% (1 component). It appears the immunization strategy for diphtheria and tetanus is satisfactory for herd immunity in New Zealand children. However, the current pertussis strategy may not be providing adequate immunity to 5-year-olds in this country.

scholarly journals Modelling the concentration of anti-SARS-CoV-2 immunoglobulin G in intravenous immunoglobulin product batches

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259731
Author(s):  
Sara Stinca ◽  
Thomas W. Barnes ◽  
Peter Vogel ◽  
Wilfried Meyers ◽  
Johannes Schulte-Pelkum ◽  
...  
Keyword(s):  
Intravenous Immunoglobulin ◽  
Binding Assay ◽  
Elevated Concentration ◽  
Plasma Pool ◽  
Igg Binding ◽  
Donor Population ◽  
The Mean ◽  
Antibody Levels ◽  
Design And Methods ◽  
Ig G

Background Plasma-derived intravenous immunoglobulin (IVIg) products contain a dynamic spectrum of immunoglobulin (Ig) G reactivities reflective of the donor population from which they are derived. We sought to model the concentration of anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) IgG which could be expected in future plasma pool and final-product batches of CSL Behring’s immunoglobulin product Privigen. Study design and methods Data was extracted from accessible databases, including the incidence of coronavirus disease 2019 and SARS-CoV-2 vaccination status, antibody titre in convalescent and vaccinated groups and antibody half-life. Together, these parameters were used to create an integrated mathematical model that could be used to predict anti-SARS-CoV-2 antibody levels in future IVIg preparations. Results We predict that anti-SARS-CoV-2 IgG concentration will peak in batches produced in mid-October 2021, containing levels in the vicinity of 190-fold that of the mean convalescent (unvaccinated) plasma concentration. An elevated concentration (approximately 35-fold convalescent plasma) is anticipated to be retained in batches produced well into 2022. Measurement of several Privigen batches using the Phadia™ EliA™ SARS-CoV-2-Sp1 IgG binding assay confirmed the early phase of this model. Conclusion The work presented in this paper may have important implications for physicians and patients who use Privigen for indicated diseases.

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