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Protein restriction

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https://www.readbyqxmd.com/read/29165854/mmp-3-1171-5a-6a-lys45glu-variants-affect-serum-levels-of-matrix-metalloproteinase-mmp-3-and-correlate-with-severity-of-copd-a-study-of-mmp-3-mmp-7-and-mmp-12-in-a-tunisian-population
#1
Sarra Bchir, Hela Ben Nasr, Abdelhamid Garrouch, Amel Ben Anes, Ammar Abbassi, Zouhair Tabka, Karim Chahed
OBJECTIVE: The goal of this study was to examine the role of MMP-3 (-1171 5A/6A; Lys45Glu (A/G)), MMP-7 (-181) A/G and MMP-12 (-82 A/G; Asn357Ser (A/G)) variants in the development and severity of chronic obstructive pulmonary disease (COPD) in Tunisians. METHODS: Plethysmography was performed in all participants to measure FEV1, FVC and FEV1/FVC parameters. Genotyping of MMP-3, MMP-7 and MMP-12 polymorphisms was carried out in 138 patients with COPD and 216 healthy controls using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP)...
November 22, 2017: Journal of Gene Medicine
https://www.readbyqxmd.com/read/29165755/research-on-the-correlation-between-the-fibrinogen-%C3%AE-and-attack-of-pediatric-pneumonia
#2
G Liu, H-W Wu, Z-G Li
OBJECTIVE: To investigate the correlation of the gene polymorphism of β-148C/T of fibrinogen with the expression of fibrinogen and the attack of pediatric pneumonia. PATIENTS AND METHODS: We employed polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) to detect the gene polymorphism of beta-fibrinogen gene-148C/T (β-148C/T). The expression level of fibrinogen in plasma was measured using enzyme-linked immunosorbent assay (ELISA), and the expression level of fibrinogen β protein was determined using Western-blot method...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29165650/evaluation-of-1-25-dihydroxyvitamin-d3-pathway-in-patients-with-chronic-urticaria
#3
Rasoul Nasiri-Kalmarzi, Mohammad Abdi, Javad Hosseini, Erfan Babaei, Aram Mokarizadeh, Zakaria Vahabzadeh
BACKGROUND: Previous studies showed the role of vitamin D (Vit D) on the progression of chronic urticaria. To the best of our knowledge, there are no other results regarding the contribution of single nucleotide polymorphisms (SNPs) in the vitamin D receptor (VDR) and vitamin D binding protein (VDBP) genes in Chronic Urticaria (CU). AIM: In the present study, we investigated the Vit pathway and the association between VDR and VDBP gene polymorphisms and CU risk in Iranian population...
November 20, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29165595/con-the-role-of-diet-for-people-with-advanced-stage-5-ckd
#4
Graham Woodrow
Restriction of dietary protein intake has been used in the management of chronic kidney disease (CKD) for many decades, yet remains controversial, with marked variations in its application in clinical practice. There is extensive literature on the subject, with some expert opinion advocating the use of protein restriction based on the balance of the available evidence. The largest randomized trial of low-protein diets is the Modification of Diet in Renal Disease study. Despite multiple secondary analyses, the essential intention-to-treat analysis failed to demonstrate a benefit in the primary outcome of rate of decline of glomerular filtration rate...
November 17, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29165589/ns3-helicase-from-dengue-virus-specifically-recognizes-viral-rna-sequence-to-ensure-optimal-replication
#5
Crystall M D Swarbrick, Chandrakala Basavannacharya, Kitti W K Chan, Shu-Ann Chan, Daljit Singh, Na Wei, Wint Wint Phoo, Dahai Luo, Julien Lescar, Subhash G Vasudevan
The protein-RNA interactions within the flavivirus replication complex (RC) are not fully understood. Our structure of dengue virus NS3 adenosine triphosphatase (ATPase)/helicase bound to the conserved 5' genomic RNA 5'-AGUUGUUAGUCU-3' reveals that D290 and R538 make specific interactions with G2 and G5 bases respectively. We show that single-stranded 12-mer RNA stimulates ATPase activity of NS3, however the presence of G2 and G5 leads to significantly higher activation. D290 is adjacent to the DEXH motif found in SF2 helicases like NS3 and interacts with R387, forming a molecular switch that activates the ATPase site upon RNA binding...
November 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29164748/maternal-protein-malnutrition-induced-hypertension-new-evidence-about-the-autonomic-and-respiratory-dysfunctions-and-epigenetic-mechanisms
#6
REVIEW
José Luiz de Brito Alves, João Henrique Costa-Silva
Maternal protein malnutrition during the critical stages of development (pregnancy, lactation and first infancy) can lead to adult hypertension. Studies have shown that renal and cardiovascular dysfunctions can be associated to the development of hypertension in humans and rats exposed to maternal protein malnutrition. The etiology of hypertension, however, includes a complex network involved in central and peripheral blood pressure control. Recently, the hyperactivity of the sympathetic nervous system in protein restricted rats has been reported...
November 22, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/29164490/immunotherapy-with-interferon-%C3%AE-induced-dendritic-cells-for-chronic-hcv-infection-the-results-of-pilot-clinical-trial
#7
Elena Chernykh, Olga Leplina, Ekaterina Oleynik, Marina Tikhonova, Tamara Tyrinova, Natalia Starostina, Alexandr Ostanin
The key role of T cells in hepatitis C virus (HCV) elimination and the ability of dendritic cells (DCs) to induce antiviral T cell responses suggest that DC vaccines could be a promising approach in the treatment of chronic HCV infection. The aim of our study was to evaluate, whether immunotherapy with DCs is safe and elicits anti-HCV T cell responses. Ten patients with HCV (genotype 1) were vaccinated with monocyte-derived DCs, generated in the presence of IFN-α (IFN-DCs) and pulsed with recombinant HCV Core and NS3 proteins...
November 21, 2017: Immunologic Research
https://www.readbyqxmd.com/read/29163634/evidence-suggesting-absence-of-mitochondrial-dna-methylation
#8
Mie Mechta, Lars R Ingerslev, Odile Fabre, Martin Picard, Romain Barrès
Methylation of nuclear genes encoding mitochondrial proteins participates in the regulation of mitochondria function. The existence of cytosine methylation in the mitochondrial genome is debated. To investigate whether mitochondrial DNA (mtDNA) is methylated, we used both targeted- and whole mitochondrial genome bisulfite sequencing in cell lines and muscle tissue from mouse and human origin. While unconverted cytosines were detected in some portion of the mitochondrial genome, their abundance was inversely associated to the sequencing depth, indicating that sequencing analysis can bias the estimation of mtDNA methylation levels...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/29163616/co-expression-of-arabidopsis-nhx1-and-bar-improves-the-tolerance-to-salinity-oxidative-stress-and-herbicide-in-transgenic-mungbean
#9
Sanjeev Kumar, Angkana Kalita, Richa Srivastava, Lingaraj Sahoo
Mungbean is an important pulse crop extensively cultivated in Southeast Asia for supply of easily digestible protein. Salinity severely limits the growth and productivity of mungbean, and weeding poses nutritional and disease constraints to mungbean cultivation. To pyramid both salt tolerance and protection against herbicide in mungbean, the AtNHX1 encoding tonoplast Na(+)/H(+) antiporter from Arabidopsis, and bar gene associated with herbicide resistance were co-expressed through Agrobacterium-mediated transformation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29163482/current-advances-in-%C3%AE-%C3%AE-t-cell-based-tumor-immunotherapy
#10
REVIEW
Elena Lo Presti, Gabriele Pizzolato, Eliana Gulotta, Gianfranco Cocorullo, Gaspare Gulotta, Francesco Dieli, Serena Meraviglia
γδ T cells are a minor population (~5%) of CD3 T cells in the peripheral blood, but abound in other anatomic sites such as the intestine or the skin. There are two major subsets of γδ T cells: those that express Vδ1 gene, paired with different Vγ elements, abound in the intestine and the skin, and recognize the major histocompatibility complex (MHC) class I-related molecules such as MHC class I-related molecule A, MHC class I-related molecule B, and UL16-binding protein expressed on many stressed and tumor cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163366/clinical-genetic-and-protein-structural-aspects-of-familial-dysalbuminemic-hyperthyroxinemia-and-hypertriiodothyroninemia
#11
REVIEW
Ulrich Kragh-Hansen, Monica Galliano, Lorenzo Minchiotti
Familial dysalbuminemic hyperthyroxinemia (FDH-T4) and hypertriiodothyroninemia (FDH-T3) are dominantly inherited syndromes characterized by a high concentration of thyroid hormone in the blood stream. The syndromes do not cause disease, because the concentration of free hormone is normal, but affected individuals are at risk of erroneous treatment. FDH-T4 is the most common cause of euthyroid hyperthyroxinemia in Caucasian populations in which its prevalence is about 1 in 10,000 individuals, but the prevalence can be much higher in some ethnic groups...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29163019/bile-acid-signaling-pathways-from-the-enterohepatic-circulation-to-the-central-nervous-system
#12
REVIEW
Kim L Mertens, Andries Kalsbeek, Maarten R Soeters, Hannah M Eggink
Bile acids are best known as detergents involved in the digestion of lipids. In addition, new data in the last decade have shown that bile acids also function as gut hormones capable of influencing metabolic processes via receptors such as FXR (farnesoid X receptor) and TGR5 (Takeda G protein-coupled receptor 5). These effects of bile acids are not restricted to the gastrointestinal tract, but can affect different tissues throughout the organism. It is still unclear whether these effects also involve signaling of bile acids to the central nervous system (CNS)...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/29162694/an-endogenous-retroviral-envelope-syncytin-and-its-cognate-receptor-identified-in-the-viviparous-placental-mabuya-lizard
#13
Guillaume Cornelis, Mathis Funk, Cécile Vernochet, Francisca Leal, Oscar Alejandro Tarazona, Guillaume Meurice, Odile Heidmann, Anne Dupressoir, Aurélien Miralles, Martha Patricia Ramirez-Pinilla, Thierry Heidmann
Syncytins are envelope genes from endogenous retroviruses that have been captured during evolution for a function in placentation. They have been found in all placental mammals in which they have been searched, including marsupials. Placental structures are not restricted to mammals but also emerged in some other vertebrates, most frequently in lizards, such as the viviparous Mabuya Scincidae. Here, we performed high-throughput RNA sequencing of a Mabuya placenta transcriptome and screened for the presence of retroviral env genes with a full-length ORF...
November 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29162141/more-than-meets-the-i-the-diverse-antiviral-and-cellular-functions-of-interferon-induced-transmembrane-proteins
#14
REVIEW
Guoli Shi, Olivier Schwartz, Alex A Compton
The first responders of human antiviral immunity are components of the intrinsic immune response that reside within each and every one of our cells. This cell-autonomous arsenal consists of nucleic acid sensors and antiviral effectors strategically placed by evolution to detect and restrict invading viruses. While some factors are present at baseline to allow for constant surveillance of the cell interior, others are upregulated by cytokines (such as interferons) that signal a viral infection underway in neighboring cells...
November 21, 2017: Retrovirology
https://www.readbyqxmd.com/read/29161966/altered-downstream-target-gene-expression-of-the-placental-vitamin-d-receptor-in-human-idiopathic-fetal-growth-restriction
#15
Thy Ph Nguyen, Hannah Ej Yong, Tejasvy Chollangi, Shaun P Brennecke, Susan J Fisher, Euan M Wallace, Peter R Ebeling, Padma Murthi
Fetal growth restriction (FGR) affects up to 5% of pregnancies and is associated with significant perinatal complications. Maternal deficiency of vitamin D, a secosteroid hormone, is common in FGR-affected pregnancies. We recently demonstrated that decreased expression of the vitamin D receptor (VDR) in idiopathic FGR placentae could impair trophoblast growth. As strict regulation of cell-cycle genes in trophoblast cells is critical for optimal feto-placental growth, we hypothesised that pathologically decreased placental VDR contributes to aberrant regulation of cell-cycle genes...
November 22, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29161595/a-coincidence-detection-mechanism-controls-px-bar-domain-mediated-endocytic-membrane-remodeling-via-an-allosteric-structural-switch
#16
Wen-Ting Lo, Andreja Vujičić Žagar, Fabian Gerth, Martin Lehmann, Dymtro Puchkov, Oxana Krylova, Christian Freund, Leonardo Scapozza, Oscar Vadas, Volker Haucke
Clathrin-mediated endocytosis occurs by bending and remodeling of the membrane underneath the coat. Bin-amphiphysin-rvs (BAR) domain proteins are crucial for endocytic membrane remodeling, but how their activity is spatiotemporally controlled is largely unknown. We demonstrate that the membrane remodeling activity of sorting nexin 9 (SNX9), a late-acting endocytic PX-BAR domain protein required for constriction of U-shaped endocytic intermediates, is controlled by an allosteric structural switch involving coincident detection of the clathrin adaptor AP2 and phosphatidylinositol-3,4-bisphosphate (PI(3,4)P2) at endocytic sites...
November 20, 2017: Developmental Cell
https://www.readbyqxmd.com/read/29160594/leptin-action-in-normal-and-pathological-pregnancies
#17
REVIEW
Antonio Pérez-Pérez, Ayelén Toro, Teresa Vilariño-García, Julieta Maymó, Pilar Guadix, José L Dueñas, Manuel Fernández-Sánchez, Cecilia Varone, Víctor Sánchez-Margalet
Leptin is now considered an important signalling molecule of the reproductive system, as it regulates the production of gonadotrophins, the blastocyst formation and implantation, the normal placentation, as well as the foeto-placental communication. Leptin is a peptide hormone secreted mainly by adipose tissue, and the placenta is the second leptin-producing tissue in humans. Placental leptin is an important cytokine which regulates placental functions in an autocrine or paracrine manner. Leptin seems to play a crucial role during the first stages of pregnancy as it modulates critical processes such as proliferation, protein synthesis, invasion and apoptosis in placental cells...
November 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29160592/sugar-flux-and-signaling-in-plant-microbe-interactions
#18
Margaret Bezrutczyk, Jungil Yang, Joon-Seob Eom, Matthew Prior, Davide Sosso, Thomas Hartwig, Boris Szurek, Ricardo Oliva, Casiana Vera-Cruz, Frank F White, Bing Yang, Wolf B Frommer
Plant breeders have developed crop plants that are resistant to pests, but the continual evolution of pathogens creates the need to iteratively develop new control strategies. Molecular tools have allowed us to gain deep insights into disease responses, allowing for more efficient, rational engineering of crops that are more robust or resistant to a greater number of pathogen variants. Here we describe the roles in disease progress of SWEET and STP transporters, which are membrane proteins that mediate transport of sugars across the plasma membrane...
November 21, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29159825/modulation-of-the-intestinal-bile-acid-fxr-fgf15-axis-improves-alcoholic-liver-disease-in-mice
#19
Phillipp Hartmann, Katrin Hochrath, Angela Horvath, Peng Chen, Caroline T Seebauer, Cristina Llorente, Lirui Wang, Yazen Alnouti, Derrick E Fouts, Peter Stärkel, Rohit Loomba, Sally Coulter, Christopher Liddle, Ruth T Yu, Lei Ling, Stephen J Rossi, Alex M DePaoli, Michael Downes, Ronald M Evans, David A Brenner, Bernd Schnabl
Alcoholic liver disease is associated with changes in the intestinal microbiota. Functional consequences of alcohol-associated dysbiosis are largely unknown. The aim of this study was to identify a mechanism of how changes in the intestinal microbiota contribute to alcoholic liver disease. Metagenomic sequencing of intestinal contents demonstrated that chronic ethanol feeding in mice is associated with an overrepresentation of bacterial genomic DNA encoding choloylglycine hydrolase, which deconjugates bile acids in the intestine...
November 21, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29159494/the-nucleocapsid-protein-of-hantaviruses-much-more-than-a-genome-wrapping-protein
#20
REVIEW
Monika Reuter, Detlev H Krüger
The nucleocapsid (N) protein of hantaviruses represents an impressive example of a viral multifunctional protein. It encompasses properties as diverse as genome packaging, RNA chaperoning, intracellular protein transport, DNA degradation, intervention in host translation, and restricting host immune responses. These functions all rely on the capability of N to interact with RNA and other viral and cellular proteins. We have compiled data on the N protein of different hantavirus species together with information of the recently published three-dimensional structural data of the protein...
November 20, 2017: Virus Genes
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