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https://www.readbyqxmd.com/read/29151001/intravenous-fluid-therapy-for-hospitalized-and-critically-ill-children-rationale-available-drugs-and-possible-side-effects
#1
Thomas Langer, Rosamaria Limuti, Concezione Tommasino, Niels van Regenmortel, Els L I M Duval, Pietro Caironi, Manu L N G Malbrain, Antonio Pesenti
Human beings are constituted mainly of water. In particular, children's total body water might reach 75-80% of their body weight, compared to 60-70% in adults. It is therefore not surprising, that children, especially hospitalized newborns and infants, are markedly prone to water and electrolyte imbalances. Parenteral fluid therapy is a cornerstone of medical treatment and is thus of exceptional relevance in this patient population. It is crucial to appreciate the fact that intravenous fluids are drugs with very different characteristics, different indications, contraindications and relevant side effects...
November 18, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29150992/accelerated-aging-and-aging-process-in-the-brain
#2
Nickolay K Isaev, Elisaveta E Genrikhs, Maria V Oborina, Elena V Stelmashook
One of the approaches to the research of the problem of aging is the study of genetic pathologies leading to accelerated aging, such as the Hutchinson-Gilford progeria syndrome, Werner syndrome, and Down syndrome. Probably, this approach can be used in an attempt to understand the neuronal mechanisms underlying normal and pathological brain aging. The analysis of the current state of scientific knowledge about these pathologies shows that in the Hutchinson-Gilford progeria and Werner syndrome, the rate of brain aging is significantly lower than the rate of whole body aging, whereas in Down syndrome, the brain ages faster than other organs due to amyloid-beta accumulation and chronic oxidative stress in the brain tissue...
November 18, 2017: Reviews in the Neurosciences
https://www.readbyqxmd.com/read/29150982/visualization-within-the-ventricles-of-the-brain-a-micro-focus-x-ray-study
#3
Edwin John de Jager, André Francois du Plessis, Jakobus Willem Hoffman, Anna Catherina Oettlé, Marius Casparus Bosman
Conceptualization of the ventricular system of the brain by macroscopic studies is complicated by the lack of physical structure of these interconnected cavities. Dissection procedures designed to display the structures in the walls of the ventricles are destructive and not conducive for the appreciation of the ventricular system in its entirety. The application of Micro-focus X-ray tomography affords the possibility to appreciate hidden structures in a non-destructive manner. The aim of this study was to explore the possibility of using micro-focus X-ray tomography in the three-dimensional (3D) visualization of the ventricular system as well as the various neuroanatomical structures within its walls for educational purposes...
November 18, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29150979/anterior-thalamic-nuclei-lesions-have-a-greater-impact-than-mammillothalamic-tract-lesions-on-the-extended-hippocampal-system
#4
Brook A L Perry, Stephanie A Mercer, Sophie C Barnett, Jungah Lee, John C Dalrymple-Alford
The anterior thalamic nuclei (ATN), mammillary bodies and their interconnecting fiber tract, the mammillothalamic tract (MTT), are important components of an extended hippocampal circuit for episodic memory. In humans, damage to the MTT or ATN in many disorders is associated with severe anterograde amnesia and it is assumed that their influence on memory is functionally equivalent. The relative influence of these two structures on memory has not, however, been assessed explicitly. Here, a direct comparison found that only ATN lesions impaired spatial reference memory in rats...
November 18, 2017: Hippocampus
https://www.readbyqxmd.com/read/29150977/the-cellular-composition-and-glia-neuron-ratio-in-the-spinal-cord-of-a-human-and-a-non-human-primate-comparison-with-other-species-and-brain-regions
#5
Jami Bahney, Christopher S von Bartheld
The cellular composition of brains shows largely conserved, gradual evolutionary trends between species. In the primate spinal cord, however, the glia-neuron ratio was reported to be greatly increased over that in the rodent spinal cord. Here, we re-examined the cellular composition of the spinal cord of one human and one non-human primate species by employing two different counting methods, the isotropic fractionator and stereology. We also determined whether segmental differences in cellular composition, possibly reflecting increased fine motor control of the upper extremities, may explain a sharply increased glia-neuron ratio in primates...
November 18, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29150974/reciprocal-interactions-between-bile-acids-and-gut-microbiota-in-human-liver-diseases
#6
REVIEW
Tadashi Ikegami, Akira Honda
The gut microbiota (GM) play a central role in their hosts' metabolism of bile acids (BAs) by regulating deconjugation, dehydroxylation, dehydrogenation, and epimerization reactions to generate unconjugated free BAs and secondary BAs. These BAs generated by the GM are potent signaling molecules that interact with BA receptors, such as the farnesoid X receptor (FXR) and Takeda G-protein-coupled receptor 5 (TGR5). Each BA has a differential affinity to these receptors; therefore, alterations in BA composition by GM could modify the intensity of receptor signaling...
November 18, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/29150968/effects-of-blue-light-on-inflammation-and-skin-barrier-recovery-following-acute-perturbation-pilot-study-results-in-healthy-human-subjects
#7
Denise Falcone, Natallia E Uzunbajakava, Frank van Abeelen, Gerrit Oversluizen, Malou Peppelman, Piet E J van Erp, Peter C M van de Kerkhof
BACKGROUND/PURPOSE: While growing evidence supports the therapeutic effect of 453 nm blue light in chronic inflammatory skin diseases, data on its effects on acutely-perturbed human skin are scarce. In this study we investigated the impact of 453 nm narrow-band LED light on healthy skin following acute perturbation. METHODS: Tape stripping and histamine iontophoresis were performed on the forearm of 22 healthy volunteers on two consecutive weeks. In one week, challenges were followed by irradiation for 30 minutes...
November 18, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/29150960/epithelial-cell-adhesion-molecule-fragments-and-signaling-in-primary-human-liver-cells
#8
Jörg C Gerlach, Hubert G Foka, Robert L Thompson, Bruno Gridelli, Eva Schmelzer
Epithelial Cell Adhesion Molecule (EpCAM), or CD326, is a trans-membrane glycoprotein expressed by multiple normal epithelia as well as carcinoma. Human hepatic stem cells and bile duct epithelium of the liver are EpCAM positive. In tumor cell lines, its intracellular domain can be released after cleavage of the extracellular domain. Within the cell nucleus it induces cell proliferation, but cleavage depends on cell contact. Fragments of various lengths have been described in tumor cells. Despite of its described important role in proliferation in tumor cells, there is not much known about the expression and role of EpCAM fragments in primary human liver cells...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150957/randomized-controlled-clinical-two-center-study-using-xenogeneic-block-grafts-loaded-with-recombinant-human-bone-morphogenetic-protein-2-or-autogenous-bone-blocks-for-lateral-ridge-augmentation
#9
Daniel S Thoma, Michael Payer, Norbert Jakse, Stefan P Bienz, Jürg Hüsler, Patrick R Schmidlin, Ui-Won Jung, Christoph H F Hämmerle, Ronald E Jung
OBJECTIVES: to test whether or not the use of a xenogeneic block loaded with recombinant human bone morphogenetic protein-2 (rhBMP-2) results in different bone quantity and quality compared to an autogenous bone block. MATERIALS AND METHODS: 24 patients with insufficient bone volume for implant placement were randomly assigned to two treatment modalities: a xenogeneic bone block loaded with rhBMP-2 (test) or an autogenous bone block (control). The horizontal ridge width was evaluated prior to augmentation, after augmentation and at 4 months...
November 18, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29150954/physiological-role-of-urothelial-cancer-associated-1-long-noncoding-rna-in-human-skeletogenic-cell-differentiation
#10
Takanori Ishikawa, Takashi Nishida, Mitsuaki Ono, Takeshi Takarada, Nguyen Ha, Shinnosuke Kurihara, Takayuki Furumatsu, Yurika Murase, Masaharu Takigawa, Toshitaka Oohashi, Hiroshi Kamioka, Satoshi Kubota
A vast number of long-noncoding RNAs (lncRNA) are found expressed in human cells, which RNAs have been developed along with human evolution. However, the physiological functions of these lncRNAs remain mostly unknown. In the present study, we for the first time uncovered the fact that one of such lncRNAs plays a significant role in the differentiation of chondrocytes and, possibly, of osteoblasts differentiated from mesenchymal stem cells, which cells eventually construct the human skeleton. The urothelial cancer-associated 1 (UCA1) lncRNA is known to be associated with several human malignancies...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150952/ck-2127107-amplifies-skeletal-muscle-response-to-nerve-activation-in-humans
#11
Jinsy A Andrews, Timothy M Miller, Vipin Vijayakumar, Randall Stoltz, Joyce K James, Lisa Meng, Andrew A Wolff, Fady I Malik
INTRODUCTION: Three studies evaluated safety, tolerability, pharmacokinetics, and pharmacodynamics of CK-2127107 (CK-107), a next-generation fast skeletal muscle troponin activator (FSTA), in healthy subjects. We tested the hypothesis that CK-107 would amplify the force-frequency response of muscle in humans. METHODS: To assess the force-frequency response, subjects received single doses of CK-107 and placebo in a randomized, double-blind, 4-period, crossover study...
November 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/29150938/regulation-of-calcification-in-human-aortic-smooth-muscle-cells-infected-with-high-glucose-treated-porphyromonas-gingivalis
#12
Te-Chuan Chen, Chien-Tsong Lin, Shao-Ju Chien, Shun-Fu Chang, Cheng-Nan Chen
Porphyromonas (P.) gingivalis infection leading to the periodontitis has been associated with the development of systemic diseases, including cardiovascular diseases and diabetes. However, the effect of a high concentration of glucose (HG) on the invasion efficiency of P. gingivalis and the consequent modulation of pathogenesis in vascular cells, especially in the vascular smooth muscle cells (VSMCs), remains unclear. Hence, the aim of this study was to investigate whether treating P. gingivalis with HG could change its invasion capability and result in VSMC calcification and the underlying mechanism...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150935/generation-of-insulin-producing-cells-from-human-adipose-derived-mesenchymal-stem-cells-on-pva-scaffold-by-optimized-differentiation-protocol
#13
Seyed Ehsan Enderami, Masoud Soleimani, Yousef Mortazavi, Samad Nadri, Ali Salimi
The studies have been done on patient-specific human adipose-derived from mesenchymal stem cells (hADSCs) like a series of autologous growth factors and nanofibrous scaffolds (3D culture) will probably have many benefits for regenerative medicine in type 1 diabetes mellitus (TIDM) patients in the future. For this purpose, we established a polyvinyl alcohol (PVA) scaffold and a differentiation protocol by adding platelet-rich plasma (PRP) that induces the hADSCs into insulin-producing cells (IPCs). The Characteristics of the derived IPCs in 3D culture were compared with conventional culture (2D) groups evaluated at the mRNA and protein levels...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150931/microrna-497-accelerates-apoptosis-while-inhibiting-proliferation-migration-and-invasion-through-negative-regulation-of-the-mapk-erk-signaling-pathway-via-raf-1
#14
Ling Tao, Xia Li, Na-Na Han, Qi Zhou, Zhi-Le Liu
The aim of this study is to explore the various modes of action miR-497 has on human cervical cancer (CC) cell behavior. We also speculate that miR-497 achieves its anti-tumor role by governing RAF-1 via MAPK/ERK signaling pathway. CC tissues with corresponding adjacent normal tissues were collected from 168 CC patients. RAF-1-positive cells were identified by means of immunohistochemistry in tissues. A series of inhibitors, mimics and siRNA against RAF-1 were introduced to validate regulatory mechanisms for miR-497 and RAF-1...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150925/one-pot-synthesis-of-a-multi-template-molecularly-imprinted-polymer-for-the-extraction-of-six-sulfonamide-residues-from-milk-before-hplc-with-diode-array-detection
#15
Maria Kechagia, Victoria Samanidou, Abuzar Kabir, Kenneth G Furton
A highly selective molecularly imprinted polymer sorbent was synthesized and employed for the simultaneous determination of six sulfonamide antibiotic residues (sulfanilamide, sulfacetamide, sulfadiazine, sulfathiazole, sulfamerazine and sulfamethizole) in milk samples. Multi-analyte imprinted particles were used as sorbent in solid phase extraction. Sulfonamides were separated on a high-performance liquid chromatography column (Merck-Lichrospher RP18e, 5 μm 250 × 4 mm) and further identified and quantified by diode array detection...
November 18, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/29150923/pkg-ii-effectively-reversed-egf-induced-protein-expression-alterations-in-human-gastric-cancer-cell-lines
#16
Hai Qian, Yan Tao, Lu Jiang, Ying Wang, Ting Lan, Min Wu, Ji Pang, Kwaku Appiah-Kubi, Yongchang Chen, Yan Wu
Epidermal growth factor receptor (EGFR) plays an important role in gastric cancer (GC) progression. Our previous data demonstrated that type II cGMP-dependent protein kinase (PKG II) could block the EGF-EGFR axis as well as down-stream signaling pathways for example, MAPK, PI3K and PLC in gastric cancer cells. However, the exact mechanisms of PKG II against cancer remain unclear. Therefore, the present work was to address the above question. Human gastric cancer cell line AGS was infected with adenoviral construct encoding cDNA of PKG II (Ad-PKG II) to up-regulate PKG II and then treated with 8-pCPT-cGMP...
November 18, 2017: Cell Biology International
https://www.readbyqxmd.com/read/29150910/educating-youth-swine-exhibitors-on-influenza-a-virus-transmission-at-agricultural-fairs
#17
J M Nolting, J Midla, M S Whittington, S D Scheer, A S Bowman
Influenza A virus (IAV) is a major zoonotic pathogen that threatens global public health. Novel strains of influenza A viruses pose a significant risk to public health due to their pandemic potential, and transmission of influenza A viruses from animals to humans is an important mechanism in the generation and introduction of IAVs that threaten human health. The purpose of this descriptive correlational study was to develop real-life training scenarios to better inform swine exhibitors of the risks they may encounter when influenza A viruses are present in swine...
November 17, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/29150881/genotoxicity-of-11-heavy-metals-detected-as-food-contaminants-in-two-human-cell-lines
#18
B Kopp, D Zalko, M Audebert
Heavy metals, such as arsenic (As), antimony (Sb), barium (Ba), cadmium (Cd), cobalt (Co), germanium (Ge), lead (Pb), nickel (Ni), tellurium (Te), and vanadium (V) are widely distributed in the environment and in the food chain. Human exposure to heavy metals through water and food has been reported by different international agencies. Although some of these heavy metals are essential elements for human growth and development, they may also be toxic at low concentrations due to indirect mechanisms. In this study, the genotoxic and cytotoxic properties of 15 different oxidation statuses of 11 different heavy metals were investigated using high-throughput screening (γH2AX assay) in two human cell lines (HepG2 and LS-174T) representative of target organs (liver and colon) for food contaminants...
November 18, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/29150876/toxicological-characterization-of-zno-nanoparticles-in-malignant-and-non-malignant-cells
#19
Helena Moratin, Agmal Scherzad, Thomas Gehrke, Pascal Ickrath, Katrin Radeloff, Norbert Kleinsasser, Stephan Hackenberg
The increasing usage of zinc oxide nanoparticles (ZnO-NPs) in industrial applications as well as in consumer products raises concern regarding their potential adverse effects to a greater extend. Numerous studies have demonstrated toxic properties of NPs, however there is still a lack of knowledge concerning the underlying mechanisms. This study was designed to systematically investigate cytotoxicity, apoptosis, cell cycle alterations, and genotoxicity induced by ZnO-NP. Moreover, it was an aim of the investigations to specify the diverse effects of nanoparticle exposure in malignant in comparison with non-malignant cells...
November 18, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/29150847/chronic-sun-exposure-is-associated-with-distinct-histone-acetylation-changes-in-human-skin
#20
S Ding, J Chen, Q Zeng, J Lu, L Tan, A Guo, J Kang, S Yang, Y Xiang, C Zuo, J Huang
BACKGROUND: Photoaging is attributed to continuous sunlight or artificial UV exposure and manifests the clinical and histological changes of skin. Epigenetic changes have been found to be involved in the pathogenesis of photoaging. However, the underlying mechanisms are unclear. OBJECTIVES: To analyse histone modification patterns in sun-exposed and non-exposed skins, and identify the abnormally histone modified-genes related to photoaging. METHODS: Skin biopsies were collected both from the outer forearm (sun-exposed area) and the buttock (sun-protected area) in 20 healthy middle-aged female volunteers...
November 18, 2017: British Journal of Dermatology
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