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https://www.readbyqxmd.com/read/28636277/esrrb-plays-a-crucial-role-in-the-promotion-of-porcine-cell-reprogramming
#1
Fan Yang, Yahui Ren, Huan Li Huayan Wang
The estrogen-related receptor b (ESRRB) is an orphan nuclear receptor and targets many genes involved in self-renewal and pluripotency. In mouse ES cells, overexpression of ESRRB can maintain LIF-independent self-renewal in the absence of Nanog. However, the fundamental features of porcine ESRRB remain elusive. In this study, we revealed the expression profiles of ESRRB in both porcine pluripotent stem cells and early stage embryos and dissected the functional domains of ESRRB protein to prove that ESRRB is a key transcription factor that enhanced porcine pluripotent gene activation...
June 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28636269/commentary-on-r-d-trends-away-from-general-medicine-cardiovascular-drugs-can-the-fda-help-reverse-the-trend
#2
R J Meyer
In the latter part of the 20th century, drug development in cardiovascular diseases (CVDs) was a paragon of "modern" therapeutics, bringing about a substantial number of effective, well-tolerated agents targeting some of the most prevalent diseases of the Western world. These drugs were often examples of rational drug development targeting specific pathophysiologic pathways previously elucidated through basic research (e.g., targeting of the renin-angiotensin system or the cholesterol synthesis pathway). The widespread adoption of these ground-breaking medications in practice and into medical guidelines undoubtedly played a role in the fall of morbidity and mortality from CVD in the United States in recent decades...
June 21, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28636238/segmental-domain-selective-perdeuteration-and-small-angle-neutron-scattering-for-structural-analysis-of-multi-domain-proteins
#3
Miriam Sonntag, Pravin Jagtap, Bernd Simon, Marie-Sousai Appavou, Arie Geerlof, Ralf Stehle, Frank Gabel, Janosch Hennig, Michael Sattler
Multi-domain proteins play critical roles in fine-tuning essential processes in cellular signaling and gene regulation. Typically, multiple globular domains that are connected by flexible linkers undergo dynamic re-arrangements upon binding to protein, DNA or RNA ligands. RNA binding proteins (RBPs) represent an important class of multi-domain proteins, which regulate gene expression by recognizing linear or structured RNA sequence motifs. Here, we employ segmental perdeuteration of the three RNA recognition motif (RRM) domains in the RBP TIA-1 using Sortase A-mediated protein ligation...
June 21, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28636203/directional-matrix-nanotopography-with-varied-sizes-for-engineering-wound-healing
#4
Jangho Kim, Won-Gyu Bae, Yeon Ju Kim, Hoon Seonwoo, Han-Wool Choung, Kyoung-Je Jang, Sunho Park, Bog Hee Kim, Hong-Nam Kim, Kyoung Soon Choi, Myung-Sun Kim, Pill-Hoon Choung, Yun-Hoon Choung, Jong Hoon Chung
Topographic features play a crucial role in the regulation of physiologically relevant cell and tissue functions. Here, an analysis of feature-size-dependent cell-nanoarchitecture interactions is reported using an array of scaffolds in the form of uniformly spaced ridge/groove structures for engineering wound healing. The ridge and groove widths of nanopatterns are varied from 300 to 800 nm and the nanotopography features are classified into three size ranges: dense (300-400 nm), intermediate (500-600 nm), and sparse (700-800 nm)...
June 21, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28636093/introspection-plays-an-early-role-in-children-s-explicit-theory-of-mind-development
#5
Christopher R Gonzales, William V Fabricius, Anne S Kupfer
This study assessed children's (N = 236) ability to introspect the mental states of seeing and knowing relative to their ability to attribute each state to others. Children could introspect seeing 10 months before they could introspect knowing. Two- and 3-year-olds correctly reported their own seeing states, whereas 3- and 4-year-olds correctly reported their own knowing states. For each mental state, there was a 7-month difference before children could correctly attribute that state to another. These findings indicate that knowing is more difficult to introspect than seeing and that the ability to introspect each mental state emerges prior to the ability to correctly attribute them to others...
June 21, 2017: Child Development
https://www.readbyqxmd.com/read/28636071/the-role-of-homocysteine-in-seminal-vesicles-remodeling-in-rat
#6
Adel Ghoul, Elara Moudilou, Mohamed El Hadi Cherifi, Fouzia Zerrouk, Billel Chaouad, Anissa Moulahoum, Souhila Aouichat-Bouguerra, Khira Othmani, Jean-Marie Exbrayat, Yasmina Benazzoug
INTRODUCTION: Elevated plasma homocysteine (Hcy) levels have been associated with several tissue injuries including heart and liver fibrosis. In these diseases, hyperhomocysteinemia (Hhcy) plays a major role in modulating the alteration of the balance between matrix metalloproteinases (MMP) and tissue inhibitors of metalloproteinases (TIMPs), leading to the pathological accumulation of extracellular matrix (ECM) proteins. Since the effect of Hhcy on ECM of seminal vesicle was not studied, the aim of our research was to check if Hcy can induce a remodeling within seminal vesicles ECM...
June 21, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28636047/decoding-the-regulatory-mechanism-of-glucose-and-insulin-induced-phosphatidylinositol-3-4-5-trisphosphate-dynamics-in-%C3%AE-cells
#7
Tagari Samanta, Peeyush Sharma, Dwijendra Kukri, Sandip Kar
In MIN6 pancreatic β-cells, glucose and insulin act in a synergistic manner to regulate the dynamics of Phosphatidylinositol (3,4,5)-trisphosphate (PIP3). However, the precise regulatory mechanism behind such an experimentally observed synergy is poorly understood. In this article, we propose a phenomenological mathematical model for studying the glucose and insulin driven PIP3 activation dynamics under various stimulatory conditions to unfold the mechanism responsible for the observed synergy. The modeling study reveals that the experimentally observed oscillation in PIP3 dynamics with disparate time scales for different external glucose doses is mainly orchestrated by the complex dynamic regulation of cytosolic Ca(2+) in β-cells...
June 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28636040/tamoxifen-like-metallocifens-target-the-thioredoxin-system-determining-mitochondrial-impairment-leading-to-apoptosis-in-jurkat-cells
#8
Valeria Scalcon, Michèle Salmain, Alessandra Folda, Siden Top, Pascal Pigeon, Hui Zhi Shirley Lee, Gérard Jaouen, Alberto Bindoli, Anne Vessières, Maria Pia Rigobello
Tamoxifen-like metallocifens (TLMs) of the group-8 metals (Fe, Ru, and Os) show strong anti-proliferative activity on cancer cell lines resistant to apoptosis, owing to their unique redox properties. In contrast, the thioredoxin system, which is involved in cellular redox balance, is often overexpressed in cancer cells, especially in tumour types resistant to standard chemotherapies. Therefore, we investigated the effect of these three TLMs on the thioredoxin system and evaluated the input of the metallocene unit in comparison with structurally related organic tamoxifens...
June 21, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28636013/new-insights-into-the-solubility-of-graphene-oxide-in-water-and-alcohols
#9
Vadim V Neklyudov, Nail R Khafizov, Igor A Sedov, Ayrat M Dimiev
One of the main advantages of graphene oxide (GO) over its non-oxidized counterpart is its ability to form stable solutions in water and some organic solvents. At the same time, the nature of GO solutions is not completely understood; the existing data are scarce and controversial. Here, we demonstrate that the solubility of GO, and the stability of the as-formed solutions depend not just on the solute and solvent cohesion parameters, as commonly believed, but mostly on the chemical interactions at the GO/solvent interface...
June 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28636006/copper-ion-interaction-with-the-rnase-catalytic-site-fragment-of-the-angiogenin-protein-an-experimental-and-theoretical-investigation
#10
Antonio Magrì, Giovanni Tabbì, Raffaella Breglia, Luca De Gioia, Piercarlo Fantucci, Maurizio Bruschi, Raffaele P Bonomo, Diego La Mendola
The angiogenin protein (Ang) is a member of the vertebrate-specific secreted ribonucleases and one of the most potent angiogenic factors known. Ang is a normal constituent of human plasma and its concentration increases under some physiological and pathological conditions to promote neovascularization. Ang was originally identified as an angiogenic tumour factor, but its biological activity has been found to extend from inducing angiogenesis to promoting cell survival in different neurodegenerative diseases...
June 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28635972/experiences-and-concerns-of-lesbian-gay-or-bisexual-survivors-of-colorectal-cancer
#11
Allyson Baughman, Melissa A Clark, Ulrike Boehmer
PURPOSE/OBJECTIVES: To identify the experiences and needs of lesbian, gay, or bisexual (LGB) survivors of colorectal cancer (CRC) and to expand the current understanding of LGB survivorship by obtaining in-depth knowledge of survivorship among individuals with a cancer other than breast or prostate. 
. RESEARCH APPROACH: Qualitative, semistructured individual interviews via telephone.
. SETTING: Participants were recruited using social media, flyers, word of mouth, and contact with LGB and cancer organizations during a four-month period...
May 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28635659/divergent-how-ige-axis-contributes-to-the-continuum-of-allergic-asthma-and-anti-ige-therapies
#12
REVIEW
Óscar Palomares, Silvia Sánchez-Ramón, Ignacio Dávila, Luis Prieto, Luis Pérez de Llano, Marta Lleonart, Christian Domingo, Antonio Nieto
Asthma is an airway disease characterised by chronic inflammation with intermittent or permanent symptoms including wheezing, shortness of breath, chest tightness, and cough, which vary in terms of their occurrence, frequency, and intensity. The most common associated feature in the airways of patients with asthma is airway inflammation. In recent decades, efforts have been made to characterise the heterogeneous clinical nature of asthma. The interest in improving the definitions of asthma phenotypes and endotypes is growing, although these classifications do not always correlate with prognosis nor are always appropriate therapeutic approaches...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28635658/asperentin-b-a-new-inhibitor-of-the-protein-tyrosine-phosphatase-1b
#13
Jutta Wiese, Hülya Aldemir, Rolf Schmaljohann, Tobias A M Gulder, Johannes F Imhoff
In the frame of studies on secondary metabolites produced by fungi from deep-sea environments we have investigated inhibitors of enzymes playing key roles in signaling cascades of biochemical pathways relevant for the treatment of diseases. Here we report on a new inhibitor of the human protein tyrosine phosphatase 1B (PTP1B), a target in the signaling pathway of insulin. A new asperentin analog is produced by an Aspergillussydowii strain isolated from the sediment of the deep Mediterranean Sea. Asperentin B (1) contains an additional phenolic hydroxy function at C-6 and exhibits an IC50 value against PTP1B of 2 μM in vitro, which is six times stronger than the positive control, suramin...
June 21, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28635642/lack-of-association-between-serum-vitamin-b%C3%A2-vitamin-b12-and-vitamin-d-levels-with-different-types-of-glaucoma-a-systematic-review-and-meta-analysis
#14
Shengjie Li, Danhui Li, Mingxi Shao, Wenjun Cao, Xinghuai Sun
Although vitamins play a major role in health, and their deficiency may be linked to symptoms of optic-nerve dysfunction, the association between serum vitamin levels and glaucoma in humans remains controversial. In this study, articles in the PubMed, Web of Science, and EMBASE databases were searched up to 25March 2017. Nine studies on primary open-angle glaucoma (POAG), four studies on normal tension glaucoma (NTG), and six studies on exfoliative glaucoma (EXG) were retrieved. The combined results showed no differences in the levels of serum vitamin B₆ between POAG (p = 0...
June 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28635639/immune-checkpoints-as-a-target-for-colorectal-cancer-treatment
#15
REVIEW
Alessandro Passardi, Matteo Canale, Martina Valgiusti, Paola Ulivi
Anti-tumor immunity is a new line of research for the treatment of patients with solid tumors. In this field, negative regulators of the immune system called immune checkpoints play a key role in limiting antitumor immunologic responses. For this reason, immune checkpoint-inhibiting agents, such as those directed against cytotoxic T-lymphocyte antigen 4 (CTLA-4) and programmed death-1 receptor (PD1) and its ligand PD-L1, have been developed as antitumor drugs, producing interesting results in preclinical and clinical studies...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28635632/glucose-and-lipid-dysmetabolism-in-a-rat-model-of-prediabetes-induced-by-a-high-sucrose-diet
#16
Ana Burgeiro, Manuela G Cerqueira, Bárbara M Varela-Rodríguez, Sara Nunes, Paula Neto, Frederico C Pereira, Flávio Reis, Eugénia Carvalho
Glucotoxicity and lipotoxicity are key features of type 2 diabetes mellitus, but their molecular nature during the early stages of the disease remains to be elucidated. We aimed to characterize glucose and lipid metabolism in insulin-target organs (liver, skeletal muscle, and white adipose tissue) in a rat model treated with a high-sucrose (HSu) diet. Two groups of 16-week-old male Wistar rats underwent a 9-week protocol: HSu diet (n = 10)-received 35% of sucrose in drinking water; Control (n = 12)-received vehicle (water)...
June 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28635626/adiponectin-a-therapeutic-target-for-obesity-diabetes-and-endothelial-dysfunction
#17
REVIEW
Arunkumar E Achari, Sushil K Jain
Adiponectin is the most abundant peptide secreted by adipocytes, whose reduction plays a central role in obesity-related diseases, including insulin resistance/type 2 diabetes and cardiovascular disease. In addition to adipocytes, other cell types, such as skeletal and cardiac myocytes and endothelial cells, can also produce this adipocytokine. Adiponectin effects are mediated by adiponectin receptors, which occur as two isoforms (AdipoR1 and AdipoR2). Adiponectin has direct actions in liver, skeletal muscle, and the vasculature...
June 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28635565/prostate-cancer-stem-cells-from-theory-to-practice
#18
Jan Adamowicz, Katayoon Pakravan, Babak Bakhshinejad, Tomasz Drewa, Sadegh Babashah
None of the generally accepted theories on prostate cancer development can fully explain many distinguishing features of the disease, such as intratumoral heterogeneity, metastatic growth, drug resistance and tumor relapse. Prostate stem cells are a heterogeneous and small subpopulation of self-renewing cells which can actively proliferate in response to changes in the androgen level and give rise to all the cell lineages that build the prostate epithelium. According to the cancer stem cell hypothesis, prostate cancer could be a stem cell disease...
February 7, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28635516/concentration-of-uhcl1-in-the-serum-of-children-with-acute-appendicitis-before-and-after-surgery-and-its-correlation-with-crp-and-prealbumin
#19
Ewa Matuszczak, Marzena Tylicka, Wojciech Dębek, Anna Tokarzewicz, Ewa Gorodkiewicz, Adam Hermanowicz
Ubiquitin-mediated protein degradation plays a crucial role in various cellular processes, including signal transduction, cell differentiation, and stress response. Ubiquitin C-terminal hydrolase 1 (UCHL1) is a unique deubiquitinating enzyme that has both hydrolase and ligase activities. The aim of this study was the determination of UCHL1 concentration in serum of children with appendicitis, before and after the surgery. MATERIAL AND METHODS: 42 children with acute appendicitis, who were managed at the Pediatric Surgery Department, between 2013 and 2014, were randomly included into the study (age 9 months up to 14 years, mean age 2...
February 27, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28635400/the-long-noncoding-rna-foxcut-promotes-proliferation-and-migration-by-targeting-foxc1-in-nasopharyngeal-carcinoma
#20
Yu-Zhong Xu, Fang-Fang Chen, Yu Zhang, Qin-Fei Zhao, Xiao-Long Guan, Hai-Yong Wang, Ang Li, Xin Lv, Shu-Sheng Song, Ying Zhou, Xiao-Jun Li
Long noncoding RNAs play an important role in various biological processes, including tumorigenesis. FOXC1 (Forkhead box C1) is a member of the Forkhead box family of transcription factors and plays a crucial role in nasopharyngeal carcinoma. In this study, a novel long noncoding RNA (FOXCUT) located upstream of FOXC1 was investigated in 42 nasopharyngeal carcinoma patients. Our analysis revealed that the expression levels of FOXCUT and FOXC1 in nasopharyngeal carcinoma tissues were significantly higher than those observed in chronic nasopharyngitis tissues and that FOXCUT expression was positively correlated with FOXC1 expression...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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