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https://www.readbyqxmd.com/read/29454285/pou5f1b-promotes-hepatocellular-carcinoma-proliferation-by-activating-akt
#1
Yaozhen Pan, Lei Zhan, Ling Chen, Hong Zhang, Chengyi Sun, Chungen Xing
Hepatocellular carcinoma (HCC) is one of the most common tumors, so far, there still aren't good therapeutic methods. Looking for new targets makes a top priority. In this study, we found a OCT4 pseudogene, POU5F1B was significantly upregulated in HCC cells and tissues, patients with high POU5F1B had shorter survival time compared to patients with low POU5F1B expression. POU5F1B overexpression promoted HCC proliferation, while its knockdown inhibited HCC proliferation determined by MTT assay, soft agar growth assay, BrdU incorporation assay, and cell cycle assay...
February 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29453970/proton-nmr-based-serum-metabolic-profile-correlates-with-the-neurological-recovery-in-treated-acute-spinal-cord-injury-asci-subjects-a-pilot-study
#2
Alka Singh, Rajeshwar Nath Srivastava, Ashok Agrahari, Suruchi Singh, Saloni Raj, Tanushri Chatterji, Abbas Ali Mahdi, Ravindra Kumar Garg, Raja Roy
BACKGROUND: Acute Spinal Cord Injury (ASCI) is still having substantial morbidity and mortality despite of advanced therapeutics. Major obstacles are paucity of monitoring tools or biomarkers for severity determination, recovery and prognostication. A prospective case control pilot study with serum 1 H NMR spectroscopic metabolic profiling was carried out to evaluate metabolites perturbations and its relationship with recovery and to see role of stem cells in facilitating neurological recovery...
February 14, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29452888/could-low-protein-diet-modulate-nrf2-pathway-in-chronic-kidney-disease
#3
REVIEW
Juliana Saraiva Anjos, Ludmila F M F Cardozo, Marta Esgalhado, Bengt Lindholm, Peter Stenvinkel, Denis Fouque, Denise Mafra
Oxidative stress and inflammation are common findings in chronic kidney disease (CKD) patients, and they are directly linked to clinical outcomes such as protein energy wasting and cardiovascular disease. Nuclear factor-erythroid 2-related factor 2 (Nrf2) is the master regulator of antioxidant genes, regulating the expression of detoxifying enzymes of phase II and antioxidant responses. Furthermore, Nrf2 can also regulate anti-inflammatory cellular responses, by inhibiting nuclear factor kappa B activity (transcription factor that promotes inflammation)...
February 13, 2018: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/29452882/synthesis-characterisation-and-dna-intercalation-studies-of-regioisomers-of-ruthenium-ii-polypyridyl-complexes
#4
Laura Perdisatt, Samar Moqadasi, Luke O'Neill, Gary Hessman, Alessandra Ghion, Muhammad Qasim Mushtaq Warraich, Alan Casey, Christine O'Connor
Regioisomers of the functional group of the main ligand (L) on a series of [Ru(phen) 2 L] 2+ and [Ru(bpy) 2 L] 2+ complexes, where phen is 1,10 phenanthroline and bpy is 2,2'-bipyridine, were synthesised to investigate the interaction with deoxyribonucleic acid (DNA) as potential therapeutics. UV-Vis binding titrations, thermal denaturation and circular dichroism were used to evaluate their interaction with DNA. The conclusions indicated the significance of the auxiliary ligand; especially 1,10-phenanthroline has on the binding constants (K b )...
February 9, 2018: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/29452840/borrelidins-f-i-cytotoxic-and-cell-migration-inhibiting-agents-from-mangrove-derived-streptomyces-rochei-scsio-zj89
#5
Jianbin Sun, Junli Shao, Changli Sun, Yongxiang Song, Qinglian Li, Laichun Lu, Yunfeng Hu, Chun Gui, Hua Zhang, Jianhua Ju
Borrelidin A (1) is produced by several species of Streptomyces and within its bioactive scaffold, the vinylic nitrile moiety is essential for activity. We report herein newly discovered members of the borrelidin family, borrelidin F (2), borrelidin G (3), borrelidin H (4) and borrelidin I (5); all were isolated from Streptomyces rochei SCSIO ZJ89 originating from a mangrove-derived sediment sample. These structurally diverse metabolites enabled a number of new structure-activity relationships (SARs) to be identified, especially with respect to the different configurations at the C11-OH and C12-C15 double bonds for which the absolute configurations were determined using spectroscopic methods...
February 7, 2018: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/29452406/negative-association-between-sclerostin-and-insl3-in-isolated-human-osteocytes-and-in-klinefelter-syndrome-new-hints-for-testis-bone-crosstalk
#6
Andrea Di Nisio, Luca De Toni, Maria Santa Rocca, Marco Ghezzi, Riccardo Selice, Giuseppe Taglialavoro, Alberto Ferlin, Carlo Foresta
Context/Objective: The regulation of bone mass by the testis is a well-recognized mechanism, but the role of Leydig-specific marker insuline-like 3 peptide (INSL3) on the most abundant bone cell population, osteocytes, is unknown. In this study we aimed to investigate the relationship between INSL3 and Sclerostin, an osteocyte-specific protein that negatively regulates bone formation. Design/Setting: Serum sclerostin and INSL3 levels were evaluated in Klinefelter Syndrome (KS) and healthy controls...
February 14, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29452157/hypertrophic-cardiomyopathy-mutation-r58q-in-the-myosin-regulatory-light-chain-perturbs-thick-filament-based-regulation-in-cardiac-muscle
#7
Thomas Kampourakis, Saraswathi Ponnam, Malcolm Irving
Hypertrophic cardiomyopathy (HCM) is frequently linked to mutations in the protein components of the myosin-containing thick filaments leading to contractile dysfunction and ultimately heart failure. However, the molecular structure-function relationships that underlie these pathological effects remain largely obscure. Here we chose an example mutation (R58Q) in the myosin regulatory light chain (RLC) that is associated with a severe HCM phenotype and combined the results from a wide range of in vitro and in situ structural and functional studies on isolated protein components, myofibrils and ventricular trabeculae to create an extensive map of structure-function relationships...
February 13, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29451524/-diet-and-gut-microbiota-two-sides-of-the-same-coin
#8
Ramona Schiumerini, Francesca Pasqui, Davide Festi
Gut microbiota is a complex ecosystem, resident in the digestive tract, exerting multiple functions that can have a significant impact on the pathophysiology of the host organism. The composition and functions of this "superorganism" are influenced by many factors, and among them, the host's dietary habits seem to have a significant effect. Dietary changes in the evolution of human history and in the different stages of life of the human subjects are responsible for qualitative and functional modification of gut microbiota...
January 2018: Recenti Progressi in Medicina
https://www.readbyqxmd.com/read/29451201/tackling-dipeptidyl-peptidase-iv-in-neurological-disorders
#9
REVIEW
Ghaith Al-Badri, Gian Marco Leggio, Giuseppe Musumeci, Rubina Marzagalli, Filippo Drago, Alessandro Castorina
Dipeptidyl peptidase IV (DPP-IV) is a serine protease best known for its role in inactivating glucagon-like peptide-1 (GLP-1), pituitary adenylate cyclase-activating polypeptide (PACAP) and glucose-dependent insulinotropic peptide (GIP), three stimulators of pancreatic insulin secretion with beneficial effects on glucose disposal. Owing to the relationship between DPP-IV and these peptides, inhibition of DPP-IV enzyme activity is considered as an attractive treatment option for diabetic patients. Nonetheless, increasing studies support the idea that DPP-IV might also be involved in the development of neurological disorders with a neuroinflammatory component, potentially through its non-incretin activities on immune cells...
January 2018: Neural Regeneration Research
https://www.readbyqxmd.com/read/29451034/cytochrome-p450-in-the-central-nervous-system-as-a-therapeutic-target-in-neurodegenerative-diseases
#10
Cynthia Navarro-Mabarak, Rafael Camacho-Carranza, Jesús Javier Espinosa-Aguirre
Cytochromes P450 (CYPs) constitute a family of enzymes that can be found in the endoplasmic reticulum (ER), mitochondria or the cell surface of the cells. CYPs are characterized by carrying out the oxidation of organic compounds and they are mainly recognized as mediators of the biotransformation of xenobiotics to polar hydrophilic metabolites that can be eliminated from the organism. However, these enzymes play a key role in many other physiological processes, being involved in diverse indispensable metabolic pathways since they metabolize many endogenous substrates...
February 16, 2018: Drug Metabolism Reviews
https://www.readbyqxmd.com/read/29450991/mass-spectrometry-based-fast-photochemical-oxidation-of-proteins-fpop-for-higher-order-structure-characterization
#11
Ke Sherry Li, Liuqing Shi, Michael L Gross
Assessment of protein structure and interaction is crucial for understanding protein structure/function relationships. Compared to high-resolution structural tools, including X-ray crystallography, nuclear magnetic resonance (NMR), and cryo-EM, and traditional low-resolution methods, such as circular dichroism, UV-vis, and florescence spectroscopy, mass spectrometry (MS)-based protein footprinting affords medium-to-high resolution (i.e., regional and residue-specific insights) by taking advantage of proteomics methods focused on the primary structure...
February 16, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29450447/interplay-among-psychopathologic-variables-personal-resources-context-related-factors-and-real-life-functioning-in-individuals-with-schizophrenia-a-network-analysis
#12
Silvana Galderisi, Paola Rucci, Brian Kirkpatrick, Armida Mucci, Dino Gibertoni, Paola Rocca, Alessandro Rossi, Alessandro Bertolino, Gregory P Strauss, Eugenio Aguglia, Antonello Bellomo, Martino Belvederi Murri, Paola Bucci, Bernardo Carpiniello, Anna Comparelli, Alessandro Cuomo, Domenico De Berardis, Liliana Dell'Osso, Fabio Di Fabio, Barbara Gelao, Carlo Marchesi, Palmiero Monteleone, Cristiana Montemagni, Giulia Orsenigo, Francesca Pacitti, Rita Roncone, Paolo Santonastaso, Alberto Siracusano, Annarita Vignapiano, Antonio Vita, Patrizia Zeppegno, Mario Maj
Importance: Enhanced understanding of factors associated with symptomatic and functional recovery is instrumental to designing personalized treatment plans for people with schizophrenia. To date, this is the first study using network analysis to investigate the associations among cognitive, psychopathologic, and psychosocial variables in a large sample of community-dwelling individuals with schizophrenia. Objective: To assess the interplay among psychopathologic variables, cognitive dysfunctions, functional capacity, personal resources, perceived stigma, and real-life functioning in individuals with schizophrenia, using a data-driven approach...
February 14, 2018: JAMA Psychiatry
https://www.readbyqxmd.com/read/29449014/periarticular-bone-predicts-knee-osteoarthritis-progression-data-from-the-osteoarthritis-initiative
#13
Grace H Lo, Erika Schneider, Jeffrey B Driban, Lori Lyn Price, David J Hunter, Charles B Eaton, Marc C Hochberg, Rebecca D Jackson, C Kent Kwoh, Michael C Nevitt, John A Lynch, Timothy E McAlindon
OBJECTIVE: Osteoarthritis (OA) is a disease with a substantial public health burden. Quantitative assessments of periarticular bone may be a biomarker capable of monitoring early disease progression. The purpose of this study was to evaluate whether measures of periarticular bone associate with longitudinal structural progression. METHODS: We conducted a 12-18 months longitudinal study using the Osteoarthritis Initiative (OAI). Participants received knee dual-energy x-ray absorptiometry (DXA), trabecular magnetic resonance (MR) imaging, and x-rays...
January 31, 2018: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29448849/development-of-small-molecule-immune-checkpoint-inhibitors-of-pd-1-pd-l1-as-a-new-therapeutic-strategy-for-tumour-immunotherapy
#14
Kui Li, Tian Hongqi
Cancer immunotherapy has been increasingly utilized to treat advanced malignancies. The signalling network of immune checkpoints has attracted considerable attention. Immune checkpoint inhibitors are revolutionizing the treatment options and expectations for patients with cancer. The reported clinical success of targeting the T-cell immune checkpoint receptors PD-1/PD-L1 has demonstrated the importance of immune modulation. Indeed, antibodies binding to PD-1 or PD-L1 have shown remarkable efficacy. However, antibody drugs have many disadvantages, such as their production cost, stability, and immunogenicity, and therefore, small-molecule inhibitors of PD-1 and its ligand PD-L1 are being introduced...
February 16, 2018: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29448116/immunoliposomes-in-clinical-oncology-state-of-the-art-and-future-perspectives
#15
REVIEW
María Merino, Sara Zalba, María J Garrido
Liposomal formulations entrapping a vast number of molecules have improved cancer therapies overcoming certain pharmacokinetic (PK) and pharmacodynamic limitations, many of which are associated with tumor characteristics. In this context, immunoliposomes represent a new strategy that has been widely investigated in preclinical cancer models with promising results, although few have reached the stage of clinical trials. This contrasts with the emerging clinical application of monoclonal antibodies (mAbs). This formulation allows the conjugation of different mAbs or antibody derivatives, such as monovalent variable fragments Fab', to the polymers covering the surface of liposomes...
February 12, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29448085/plk2-loss-commonly-occurs-in-colorectal-carcinomas-but-not-adenomas-relationship-to-mtor-signaling
#16
Elizabeth M Matthew, Zhaohai Yang, Suraj Peri, Mark Andrake, Roland Dunbrack, Eric Ross, Wafik S El-Deiry
Plk2 is a target of p53. Our previous studies demonstrated that with wild-type p53, Plk2 impacts mTOR signaling in the same manner as TSC1, and Plk2-deficient tumors grew larger than control. Other investigators have demonstrated that Plk2 phosphorylates mutant p53 in a positive feedback loop. We investigated Plk2's tumor suppressor functions in relationship to mTOR signaling. Archival specimens from 12 colorectal adenocarcinomas were stained for markers including Plk2, phosphorylated mTOR (serine 2448) and ribosomal S6 (Serine 235/236)...
February 12, 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29447919/expression-of-programmed-cell-death-protein-1-pd-1-and-indoleamine-2-3-dioxygenase-ido-in-the-tumor-microenvironment-and-in-tumor-draining-lymph-nodes-of-breast-cancer
#17
Qian Ye, Chenglong Wang, Jie Xian, Ming Zhang, Yijia Cao, Youde Cao
Programmed cell death protein 1 (PD-1) and Indoleamine 2,3-dioxygenase (IDO) are both immunosuppressive proteins. Here, we investigated the relationship between PD-1 and IDO in the tumor microenvironment (TME) and in tumor-draining lymph nodes (TDLNs) in breast cancer patients. First, the protein and mRNA expression levels of PD-1 and IDO in 20 frozen tissues were examined using Western blotting and RT-PCR. Second, 151 paraffin-embedded breast samples and 52 lymph node samples were analyzed by immunohistochemistry...
February 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29447131/dna-repair-deficiency-sensitizes-lung-cancer-cells-to-nad-biosynthesis-blockade
#18
Mehdi Touat, Tony Sourisseau, Nicolas Dorvault, Roman M Chabanon, Marlène Garrido, Daphné Morel, Dragomir B Krastev, Ludovic Bigot, Julien Adam, Jessica Frankum, Sylvère Durand, Clement Pontoizeau, Sylvie Souquère, Mei-Shiue Kuo, Sylvie Sauvaigo, Faraz Mardakheh, Alain Sarasin, Ken A Olaussen, Luc Friboulet, Frédéric Bouillaud, Gérard Pierron, Alan Ashworth, Anne Lombès, Christopher J Lord, Jean-Charles Soria, Sophie Postel-Vinay
Synthetic lethality is an efficient mechanism-based approach to selectively target DNA repair defects. ERCC1 deficiency is frequently found in non-small cell lung cancers, making this DNA repair protein an attractive target for exploiting synthetic lethal approaches in this disease. Using unbiased proteomic and metabolic high-throughput profiling on a unique in-house generated isogenic model of ERCC1 deficiency, we found marked metabolic rewiring of ERCC1-deficient populations, including decreased levels of the metabolite NAD+ and reduced expression of the rate-limiting NAD+ biosynthetic enzyme nicotinamide phosphoribosyltransferase (NAMPT)...
February 15, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29447080/improved-lower-extremity-pedaling-mechanics-in-individuals-with-stroke-under-maximal-workloads
#19
Susan M Linder, Anson B Rosenfeldt, Andrew S Bazyk, Mandy Miller Koop, Sarah Ozinga, Jay L Alberts
Background Individuals with stroke present with motor control deficits resulting in the abnormal activation and timing of agonist and antagonist muscles and inefficient movement patterns. The analysis of pedaling biomechanics provides a window into understanding motor control deficits, which vary as a function of workload. Understanding the relationship between workload and motor control is critical when considering exercise prescription during stroke rehabilitation. Objectives To characterize pedaling kinematics and motor control processes under conditions in which workload was systematically increased to an eventual patient-specific maximum...
February 15, 2018: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/29446994/-it-s-better-in-a-group-anyway-patient-experiences-of-group-and-individual-acupuncture
#20
Elizabeth Chuang, Noa Hashai, Michele Buonora, Jonathan Gabison, Benjamin Kligler, M Diane McKee
OBJECTIVES: Chronic pain is prevalent, burdensome, and costly, and there are ethnic and racial disparities in treatment. Acupuncture is effective and safe, but access is limited. Group acupuncture can decrease cost and increase capacity by decreasing clinic space needs and increasing patient volume per acupuncturist; however, the effectiveness and patient acceptability of group and individual session acupuncture have never been directly compared. DESIGN: The Acupuncture Approaches to Decrease Disparities in Pain Treatment (AADDOPT-2) study is a randomized comparative effectiveness trial of acupuncture for chronic pain...
February 15, 2018: Journal of Alternative and Complementary Medicine: Research on Paradigm, Practice, and Policy
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