Determination of alpha-2-MRAP gene polymorphisms in nephrolithiasis patients
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Authors: Mehde, Atheer Awad; Mehdi, Wesen Adel; Yusof, Faridah; Raus, Raha Ahmed; Abidin, Zaima Azira Zainal; Ghazali, Hamid; Rahman, Azlina Abd
Abstract
Background: The intron 5 insertion/deletion polymorphism of Alpha-2-macroglobulin receptor-associated protein gene (Alpha-2-MRAP) has been implicated in numerous diseases. The current study was designed to analyze the association of intron 5 insertion/deletion polymorphism of Alpha-2-MRAP with nephrolithiasis patients. Methods: PCR was conducted on genomic DNA of patients and control to look for Alpha-2-MRAP insertion/deletion polymorphism. Besides that, serum level of Alpha-2-MRAP, oxidative stress marker myeloperoxidase, Malondialdehyde (MDA), Advanced oxidation protein products (AOPP), and uric acid were determined. Results: The D and I allele frequencies were 57.50% and 42.50% in patients, 77.50% and 22.50% in control, individually. The result showed that II genotype was associated with nephrolithiasis patients group. A significant decrease was observed in serum Alpha-2-MRAP,myeloperoxidase and TAS,while TOS,OSI,MDA,AOPP and uric acid were substantially increased in II and ID when compared to DD genotype in patients with nephrolithiasis. Conclusion: Our results demonstrate for the first time that patients with II genotype had an increased risk of stones. Also, the results demonstrate that I allele of the 5 insertion/deletion polymorphism in the Alpha-2-MRAP gene is related with an increase of oxidative stress in nephrolithiasis patients and may possibly impose a risk for cardiovascular diseases in patients with II genotype of Alpha-2-MRAP. (C) 2017 Elsevier B.V. All rights reserved.
Differential protein expression in chicken macrophages and heterophils in vivo following infection with Salmonella Enteritidis
VETERINARY RESEARCH
Authors: Sekelova, Zuzana; Stepanova, Hana; Polansky, Ondrej; Varmuzova, Karolina; Faldynova, Marcela; Fedr, Radek; Rychlik, Ivan; Vlasatikova, Lenka
Abstract
In this study we compared the proteomes of macrophages and heterophils isolated from the spleen 4 days after intravenous infection of chickens with Salmonella Enteritidis. Heterophils were characterized by expression of MMP9, MRP126, LECT2, CATHL1, CATHL2, CATHL3, LYG2, LYZ and RSFR. Macrophages specifically expressed receptor proteins, e. g. MRC1L, LRP1, LGALS1, LRPAP1 and a DMBT1L. Following infection, heterophils decreased ALB and FN1, and released MMP9 to enable their translocation to the site of infection. In addition, the endoplasmic reticulum proteins increased in heterophils which resulted in the release of granular proteins. Since transcription of genes encoding granular proteins did not decrease, these genes remained continuously transcribed and translated even after initial degranulation. Macrophages increased amounts of fatty acid elongation pathway proteins, lysosomal and phagosomal proteins. Macrophages were less responsive to acute infection than heterophils and an increase in proteins like CATHL1, CATHL2, RSFR, LECT2 and GAL1 in the absence of any change in their expression at RNA level could even be explained by capturing these proteins from the external environment into which these could have been released by heterophils.