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@#Introduction: Cytomegalovirus (CMV) infection in pregnancy is the commonest cause of congenital infection worldwide. Primary CMV infection in pregnancy carries a higher risk of fetal transmission compared to non-primary infection. This study aims to determine the cytokines expression in pregnant women with primary and non-primary CMV infections in both types of infection. Methods: This prospective cohort study was conducted at Microbiology Laboratory, Universiti Sains Malaysia (USM) from January 2019 until June 2020. Seventy-four pregnant women with abnormal pregnancy outcomes with positive CMV IgG with or without IgM by electrochemiluminescence assay (ECLIA) were subjected to IgG avidity assay by ECLIA method to discriminate primary and non-primary CMV infection. Later, the sera were subjected to magnetic Luminex multiplex enzyme-linked immunosorbent assay for cytokine analysis to determine their concentrations in both primary and non-primary CMV infection. Cytokines and chemokines tested were IL-12, IL-2, IFN- γ, TNF-α, IL-1β, IL-6, IL-10, IFN- γ, TNF-α, MCP-1 (CCL-2), and IP-10 (CXCL-10). Results: Concentrations of IL-1β, IL-6, and MCP-1 (CCL-2) were significantly elevated in pregnant women with primary CMV infection with the p-values of (0.001, 0.035, and 0.002) respectively. The intensity of IFN-γ, IL-12, and IL-2 were higher in primary CMV infection with the p-values of (0.018, 0.004, and 0.007). Conclusion: The pro-inflammatory cytokines were expressed significantly in pregnant women with primary CMV infection together with MCP-1 (CCL2), showing predominant Th1 response. The low level of cytokines in non-primary CMV infection might be due to the latent state of CMV in a host.
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@#Aims:The ever-revolving fungi strains and environmental and health concerns due to current practice of synthetic pesticide in agricultural fields have encourages more ventures into bio-pesticides research. Mimusops elengi, a widely available endogenous plant intropical countries and most parts of this plant have been proven to possess medicinal and antimicrobial potential. In this study, M.elengiseeds crude extracts are tested for their antifungal activities on paddy seed-borne and pathogenic fungi.Methodology and results:The dried and grinded M.elengiseeds are macerated separately using water, methanol, ethyl acetate, dichloromethane and petroleum ether as extraction medium. Crude extract of each solvent wasused on paddy seed surface treatment to determine their antifungal inhibition potential on seed-borne fungi and paddy grain germination. Synthetic fungicide mancozeb and thiram are also tested as comparisons to the performance of plant extracts. Water andmethanol extracts exerted the best fungal inhibiting and grain germination results from the five crude extracts tested and qualitative phytochemical screening reveals both extracts contained the most number of phytoconstituents including saponin, flavonoids, alkaloids, tannins and phenolic. Water extract, methanol extracts and synthetic fungicides are then subjected to in-vitro bioassay to observe their effect on mycelial growth of several fungi strains pathogenic to paddy namely, Fusarium fujikuroi,Curvularia aeria,C.lunata andC.eragrostidis.Water and methanol extracts showed a very similar trend of inhibition on all four fungi strains tested with best percentage of inhibition on mycelia growth of C.eragrostidisfollowed by C. aeria, C. lunataand least effective on F.fujikuroi. Further separation of crude extract need to be done to isolate the specific acting compounds contributing to fungal growth inhibition.Conclusion, significance and impact of study:Both water and methanol extracts of the seeds contain promising antifungal properties on seed borne fungi which is as good as the synthetic fungicides compared in this study. A broad range of active phytochemical properties it possesses may be the contributing factor for the fungal growth inhibition. This preliminary screening could narrow down the potential of this seed extracts as natural antifungal agents and the acting active compounds.
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The present study aimed to evaluate the effect of bromoxynil herbicide on soil microorganisms, with the hypothesis that this herbicide caused suppression in microbial activity and biomass by exerting toxic effect on them. Nine sites of Punjab province (Pakistan) those had been exposed to bromoxynil herbicide for about last ten years designated as soil 'A' were surveyed in 2011 and samples were collected and analyzed for Microbial Biomass Carbon (MBC), Biomass Nitrogen (MBN), Biomass Phosphorus (MBP) and bacterial population. Simultaneously, soil samples from the same areas those were not exposed to herbicide designated as soil 'B' were taken. At all the sites MBC, MBN and MBP ranged from 131 to 457, 1.22 to 13.1 and 0.59 to 3.70 µg g-1 in the contaminated soils (Soil A), which was 187 to 573, 1.70 to 14.4 and 0.72 to 4.12 µg g-1 in the soils without contamination (soil B). Bacterial population ranged from 0.67 to 1.84x10(8) and 0.87 to 2.37x10(8) cfu g-1 soil in the soils A and B, respectively. Bromoxynil residues ranged from 0.09 to 0.24 mg kg-1 at all the sites in soil A. But no residues were detected in the soil B. Due to lethal effect of bromoxynil residues on the above parameters, considerable decline in these parameters was observed in the contaminated soils. Results depicted that the herbicide had left toxic effects on soil microbial parameters, thus confirmed that continuous use of this herbicide affected the quality of soil and sustainable crop production.