scholarly journals Serology profile and effects of influenza vaccination on COVID-19-positive symptomatic and asymptomatic patients

2020 ◽  
Author(s):  
Allison N. Grossberg ◽  
Lilia A. Koza ◽  
Aurelie Ledreux ◽  
Chad Prusmack ◽  
Hari Krishnan Krishnamurthy ◽  
...  
Keyword(s):  
Immune Response ◽  
Detection Limit ◽  
Influenza Vaccination ◽  
Specific Antibodies ◽  
Asymptomatic Patients ◽  
Returns To Work ◽  
Adults And Children ◽  
Serology Test ◽  
Multiplex Serology ◽  
Insight Into

Abstract The COVID-19 pandemic has affected more than 6.6 million people worldwide. As the population returns to work, it is critical to develop tests that can reliably detect SARS-CoV-2-specific antibodies. Here, we present the results of a novel multiplex serology test to assess the immune response to COVID-19 in an outpatient cohort consisting of adults and children in Colorado. The IgG response was more robust in positive/symptomatic participants than in positive/asymptomatic participants. The IgM response in symptomatic participants was transient and largely fell below the detection limit 30 days after symptom onset. Influenza vaccination gave rise to milder symptomology, but did not protect against contagion. These results provide novel insight into serology profiling and the immune response to COVID-19.

scholarly journals A multiplex chemiluminescent immunoassay for serological profiling of COVID-19-positive symptomatic and asymptomatic patients

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Allison N. Grossberg ◽  
Lilia A. Koza ◽  
Aurélie Ledreux ◽  
Chad Prusmack ◽  
Hari Krishnan Krishnamurthy ◽  
...  
Keyword(s):  
Antibody Responses ◽  
Receptor Binding Domain ◽  
Asymptomatic Patients ◽  
Returns To Work ◽  
Adults And Children ◽  
Serology Test ◽  
Chemiluminescent Immunoassay ◽  
Asymptomatic Individuals ◽  
Multiplex Serology ◽  
Insight Into

AbstractThe COVID-19 pandemic affects more than 81 million people worldwide with over 1.7 million deaths. As the population returns to work, it is critical to develop tests that reliably detect SARS-CoV-2-specific antibodies. Here we present results from a multiplex serology test for assessing the antibody responses to COVID-19. In an initial large cohort, this test shows greater than 99% agreement with COVID-19 PCR test. In a second outpatient cohort consisting of adults and children in Colorado, the IgG responses are more robust in positive/symptomatic participants than in positive/asymptomatic participants, the IgM responses in symptomatic participants are transient and largely fall below the detection limit 30 days after symptom onset, and the levels of IgA against SARS-CoV-2 receptor binding domain are significantly increased in participants with moderate-to-severe symptoms compared to those with mild-to-moderate symptoms or asymptomatic individuals. Our results thus provide insight into serology profiling and the immune response to COVID-19.

scholarly journals A probiotic fermented dairy product improves immune response to influenza vaccination in the elderly

2008 ◽  
Vol 67 (OCE5) ◽  
Author(s):  
J. Aubin ◽  
M. Remigy ◽  
L. Verseil ◽  
R. Bourdet-Sicard ◽  
S. Vaudaine ◽  
...  
Keyword(s):  
Immune Response ◽  
Influenza Vaccination ◽  
Dairy Product ◽  
The Elderly ◽  
Fermented Dairy Product ◽  
Fermented Dairy

scholarly journals Integrated Insight into the Molecular Mechanisms of Spontaneous Abortion during Early Pregnancy in Pigs

2021 ◽  
Vol 22 (12) ◽  
pp. 6644
Author(s):  
Xupeng Zang ◽  
Ting Gu ◽  
Wenjing Wang ◽  
Chen Zhou ◽  
Yue Ding ◽  
...  
Keyword(s):  
Immune Response ◽  
Spontaneous Abortion ◽  
Molecular Mechanisms ◽  
Gene Set Enrichment Analysis ◽  
Differentially Expressed ◽  
Gene Set ◽  
Cerna Network ◽  
Major Interest ◽  
End Stage ◽  
Insight Into

Due to the high rate of spontaneous abortion (SAB) in porcine pregnancy, there is a major interest and concern on commercial pig farming worldwide. Whereas the perturbed immune response at the maternal–fetal interface is an important mechanism associated with the spontaneous embryo loss in the early stages of implantation in porcine, data on the specific regulatory mechanism of the SAB at the end stage of the implantation remains scant. Therefore, we used high-throughput sequencing and bioinformatics tools to analyze the healthy and arresting endometrium on day 28 of pregnancy. We identified 639 differentially expressed lncRNAs (DELs) and 2357 differentially expressed genes (DEGs) at the end stage of implantation, and qRT-PCR was used to verify the sequencing data. Gene set variation analysis (GSVA), gene set enrichment analysis (GSEA), and immunohistochemistry analysis demonstrated weaker immune response activities in the arresting endometrium compared to the healthy one. Using the lasso regression analysis, we screened the DELs and constructed an immunological competitive endogenous RNA (ceRNA) network related to SAB, including 4 lncRNAs, 11 miRNAs, and 13 genes. In addition, Blast analysis showed the applicability of the constructed ceRNA network in different species, and subsequently determined HOXA-AS2 in pigs. Our study, for the first time, demonstrated that the SAB events at the end stages of implantation is associated with the regulation of immunobiological processes, and a specific molecular regulatory network was obtained. These novel findings may provide new insight into the possibility of increasing the litter size of sows, making pig breeding better and thus improving the efficiency of animal husbandry production.

scholarly journals Mycobacterium tuberculosis adhesins: potential biomarkers as anti-tuberculosis therapeutic and diagnostic targets

Microbiology ◽  
2014 ◽  
Vol 160 (9) ◽  
pp. 1821-1831 ◽  
Author(s):  
Viveshree S. Govender ◽  
Saiyur Ramsugit ◽  
Manormoney Pillay
Keyword(s):  
Immune Response ◽  
Mycobacterium Tuberculosis ◽  
Control Strategies ◽  
Host Cells ◽  
Tuberculosis Control ◽  
Surface Molecules ◽  
Host Pathogen Interaction ◽  
Bacterial Aggregation ◽  
Insight Into

Adhesion to host cells is a precursor to host colonization and evasion of the host immune response. Conversely, it triggers the induction of the immune response, a process vital to the host’s defence against infection. Adhesins are microbial cell surface molecules or structures that mediate the attachment of the microbe to host cells and thus the host–pathogen interaction. They also play a crucial role in bacterial aggregation and biofilm formation. In this review, we discuss the role of adhesins in the pathogenesis of the aetiological agent of tuberculosis, Mycobacterium tuberculosis. We also provide insight into the structure and characteristics of some of the characterized and putative M. tuberculosis adhesins. Finally, we examine the potential of adhesins as targets for the development of tuberculosis control strategies.

HIV-infected patients show impaired cellular immune response to influenza vaccination compared to healthy subjects

Vaccine ◽  
2013 ◽  
Vol 31 (28) ◽  
pp. 2914-2918 ◽  
Author(s):  
Massimiliano Fabbiani ◽  
Letizia Sidella ◽  
Maddalena Corbi ◽  
Rosa Martucci ◽  
Michela Sali ◽  
...  
Keyword(s):  
Immune Response ◽  
Influenza Vaccination ◽  
Cellular Immune Response ◽  
Healthy Subjects ◽  
Cellular Immune

Special Issue on "Immunomodulatory and therapeutic approaches against infectious diseases"

2011 ◽  
Vol 1 (5) ◽  
pp. 1-2
Author(s):  
Lavkush Dwivedi
Keyword(s):  
Immune Response ◽  
Infectious Diseases ◽  
Human Health ◽  
Immune Stimulation ◽  
Defense System ◽  
Special Issue ◽  
Therapeutic Approaches ◽  
Major Constraint ◽  
The World ◽  
Insight Into

Infectious diseases and consequent immune imbalancesare major constraint in human health managementthroughout the world. However, in recentdecades enormous efforts have been made to elucidatethe immunomodulatory approaches againstinfectious diseases. Immunomodulation is a therapeuticapproach in which we try to intervene inauto regulating processes of the defense system toadjust the immune response at a desired level.The present special issue on cutting edge issues inImmunomodulation like Immune stimulation, Immunesuppression, Immune potentiating and immunereinforcement summarizes our current understandingof this complex mosaic. The accompanyingselection of recent articles from across theworld provides further insight into this topic. 

Manipulation of the immune response in parasitic infections

Parasitology ◽  
1984 ◽  
Vol 88 (4) ◽  
pp. 665-675
Author(s):  
J.G. Howard
Keyword(s):  
Immune Response ◽  
Inbred Mouse ◽  
Lymphocyte Subset ◽  
Mouse Strains ◽  
Parasitic Infections ◽  
Research Experience ◽  
Relevant Research ◽  
Fresh Insight ◽  
Insight Into

The following brief survey considers various manoeuvres which can be applied to manipulate the immune response to parasitic infectionsin vivo. The examples quoted largely concern malaria, babesiosis, schistosomiasis and leishmaniasis, predominantly in inbred mouse strains. Since my own relevant research experience has been restricted to leishmaniasis, this will receive undue emphasis, although it does illustrate particularly well points I wish to stress. The types of intervention described do not all provide the precision of interpretation with which they are sometimes credited. Thus, effects of immunosuppression or T-cell depletion alone can usually only implicate the specific immune response (in its broad sense) in shaping the natural history and outcome of an infection or in underlying the effect of prophylactic immunization. Nevertheless, more precise delineation of lymphocyte subset involvement can be obtained by cell replacement studies in some of these models or by exclusion of antibody. The outcomes of these approaches have been (or are) predictable in most cases. More fascinating, however, are the various instances which will be stressed where totally unpredicted and contrary observations have been made which led (or may lead) to fresh insight into the disease. These serendipitous findings illustrate at the same time the value of applying the manoeuvres, even though they imply that the logical immunologist cannot yet always outsmart the parasite by design.

scholarly journals Mercuric pollution of surface water, superficial sediments, Nile tilapia (Oreochromis nilotica Linnaeus 1758 [Cichlidae]) and yams (Dioscorea alata) in auriferous areas of Namukombe stream, Syanyonja, Busia, Uganda

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7919 ◽  
Author(s):  
Timothy Omara ◽  
Shakilah Karungi ◽  
Raymond Kalukusu ◽  
BrendaVictoria Nakabuye ◽  
Sarah Kagoya ◽  
...  
Keyword(s):  
Detection Limit ◽  
Health Risk ◽  
Gold Mining ◽  
Daily Intake ◽  
Dioscorea Alata ◽  
Estimated Daily Intake ◽  
Piscivorous Fish ◽  
Risk Indices ◽  
Us Epa ◽  
Adults And Children

The mercury content and the contamination characteristics of water, sediments, edible muscles of a non-piscivorous fish (Oreochromis nilotica Linnaeus 1758 [Cichlidae]) and yams (Dioscorea alata) from Namukombe stream in Busia gold district of Uganda were evaluated. Human health risk assessment from consumption of contaminated fish and yams as well as contact with contaminated sediments from the stream were performed. Forty-eight (48) samples of water (n = 12), sediments (n = 12), fish (n = 12) and yams (n = 12) were taken at intervals of 10 m from three gold recovery sites located at up, middle and down sluices of the stream and analyzed for total mercury (THg) using US EPA method 1631. Results (presented as means  ±  standard deviations) showed that water in the stream is polluted with mercury in the range of < detection limit to 1.21  ±  0.040 mg/L while sediments contain mean THg from < detection limit to 0.14  ±  0.040 ugg−1. Mean THg content of the edible muscles of O. nilotica ranged from < detection limit to 0.11 ± 0.014 ugg−1while D. alata contained from < detection limit to 0.30  ±  0.173 ugg−1mean THg. The estimated daily intake ranged from 0.0049 ugg−1day−1 to 0.0183 ugg−1day−1 and 0.0200 ugg−1day−1 to 0.0730 ugg−1day−1 for fish consumed by adults and children respectively. The corresponding health risk indices ranged from 0.0123 to 0.0458 and 0.0500 to 0.1830. Estimated daily intake was from 0.0042 ugg−1day−1 to 0.1279 ugg−1day−1 and 0.0130 ugg−1day−1 to 0.3940 ugg−1day−1 for D. alata consumed by adults and children respectively. The health risk indices recorded were from 0.011 to 0.320 and 0.033 to 0.985 for adults and children respectively. The mean THg content of the sediments, edible muscles of O. nilotica and D. alata were within acceptable WHO/US EPA limits. About 91.7% of the water samples had mean THg above US EPA maximum permissible limit for mercury in drinking water. Consumption of D. alata grown within 5 m radius up sluice of Namukombe stream may pose deleterious health risks as reflected by the health risk index of 0.985 being very close to one. From the pollution and risk assessments, mercury use should be delimited in Syanyonja artisanal gold mining areas. A solution to abolish mercury-based gold mining in the area needs to be sought as soon as possible to avert the accentuating health, economic and ecological disaster arising from the continuous discharge of mercury into the surrounding areas. Other mercury-free gold recovering methods such as use of borax, sluice boxes and direct panning should be encouraged. Waste management system for contaminated wastewater, used mercury bottles and tailings should be centralized.

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