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https://www.readbyqxmd.com/read/28918596/cd5-b-lymphocytes-in-systemic-lupus-erythematosus-patients-relation-to-disease-activity
#1
Hanan Hassan Omar, Samah Ismail Nasef, Hamdy Hassan Omar, Mona Sayed Ghaly
B cells are essential players in the pathogenic mechanisms of systemic lupus erythematosus (SLE). Although CD5+ B cells have been considered to play a paradoxical role in preventing, rather than inducing autoimmunity, there is no consensus agreement about the proportions of CD5+ B cells population in SLE patients. So, the aim of the present study was to assess blood concentration of CD5+ B cells in patients with SLE and to evaluate their relationship with disease activity and organ damage. We recruited 100 SLE patients and 100 healthy control subjects...
September 16, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28918536/a-comparative-study-of-inorganic-elements-in-the-blood-of-male-and-female-caspian-pond-turtles-mauremys-caspica-from-the-southern-basin-of-the-caspian-sea
#2
Milad Adel, Adriana A Cortés-Gómez, Maryam Dadar, Hossein Riyahi, Marc Girondot
Due to their bioaccumulation and biomagnification pathways, inorganic elements can accumulate in high-level aquatic organisms in the food web. Then, this species can be used to monitor the quality of the environment. Blood concentration of nine inorganic elements, including possible toxic metals (An, Cu, Mn, Se, As, Ni, Cd, Pb, and Hg), in 20 males and 20 females from eight different locations with high industry and agriculture activities in Iran were evaluated in this work. Additionally, size, sex, condition index, and locations were also included and analyzed...
September 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28918527/alterations-in-epididymal-proteomics-and-antioxidant-activity-of-mice-exposed-to-fluoride
#3
Zilong Sun, Sujuan Li, Yuxiang Yu, Hongyu Chen, Mohammad Mehdi Ommati, Ram Kumar Manthari, Ruiyan Niu, Jundong Wang
It is well known that high fluoride results in low fertility. Epididymis is the important place for spermatozoa maturation, which is essential for successful fertilization. In the previous studies, fluoride was reported to damage the epididymal structure of mouse and rabbit. However, the mechanism underlying sodium fluoride (NaF)-induced epididymal toxicity has not yet been well elucidated. The aim of this study is to explore the global protein alterations in epididymis of mice exposed to NaF using the iTRAQ technique...
September 16, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28918435/infant-avoidance-training-alters-cellular-activation-patterns-in-prefronto-limbic-circuits-during-adult-avoidance-learning-ii-cellular-imaging-of-neurons-expressing-the-activity-regulated-cytoskeleton-associated-protein-arc-arg3-1
#4
Nicole Gröger, Anja Mannewitz, Jörg Bock, Susann Becker, Katja Guttmann, Gerd Poeggel, Katharina Braun
Positive and negative feedback learning is essential to optimize behavioral performance. We used the two-way active avoidance (TWA) task as an experimental paradigm for negative feedback learning with the aim to test the hypothesis that neuronal ensembles activate the activity-regulated cytoskeletal (Arc/Arg3.1) protein during different phases of avoidance learning and during retrieval. A variety of studies in humans and other animals revealed that the ability of aversive feedback learning emerges postnatally...
September 16, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28918404/combined-caesarean-with-splenectomy-in-pregnancy-with-portal-hypertension-defining-plausibility
#5
Manjunath Maruti Pol, Latika Uniyal Chawla, Yashwant Singh Rathore, Ritesh Goel
24-year-old woman at 28 weeks gestation was referred from peripheral hospital with diagnosis of pregnancy with portal hypertension. She had received multiple transfusion for pancytopaenia in the past and had undergone endoscopic sclerotherapy for oesophageal varices. Initially, she was admitted in our hospital at 28 weeks gestation for blood transfusion and was evaluated by multispecialty team of doctors. She was advised splenectomy for transfusion-dependent pancytopaenia secondary to hypersplenism in non-cirrhotic portal hypertension...
September 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28918360/do-bacteria-shape-our-development-crosstalk-between-intestinal-microbiota-and-hpa-axis
#6
REVIEW
Carolina de Weerth
The human body contains as many bacteria in the intestine as the total number of human body cells. These bacteria have a central position in human health and disease, and would also play a role in the regulation of emotions, behavior, and even higher cognitive functions. The Hypothalamic-Pituitary-Adrenal axis (HPA axis) is a major physiological stress system that produces cortisol. This hormone is involved in responding to environmental stress and also shapes many aspects of brain development. Both the HPA axis and the intestinal microbiota show rapid and profound developmental changes during the first years of life...
September 13, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28918336/total-and-cytosolic-concentrations-of-twenty-metals-metalloids-in-the-liver-of-brown-trout-salmo-trutta-linnaeus-1758-from-the-karstic-croatian-river-krka
#7
Zrinka Dragun, Vlatka Filipović Marijić, Nesrete Krasnići, Dušica Ivanković, Damir Valić, Jakov Žunić, Damir Kapetanović, Irena Vardić Smrzlić, Zuzana Redžović, Ivana Grgić, Marijana Erk
Total and cytosolic concentrations of twenty metals/metalloids in the liver of brown trout Salmo trutta (Linnaeus, 1758) were studied in the period from April 2015 to May 2016 at two sampling sites on Croatian river Krka, to establish if river water contamination with metals/metalloids downstream of Knin town has influenced metal bioaccumulation in S. trutta liver. Differences were observed between two sites, with higher concentrations of several elements (Ag, As, Ca, Co, Na, Se, Sr, V) found downstream of Knin town, whereas few others (Cd, Cs, Mo, Tl) were, unexpectedly, increased at the Krka River spring...
September 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28918301/mathematical-fundamentals-for-the-noise-immunity-of-the-genetic-code
#8
Elena Fimmel, Lutz Strüngmann
Symmetry is one of the essential and most visible patterns that can be seen in nature. Starting from the left-right symmetry of the human body, all types of symmetry can be found in crystals, plants, animals and nature as a whole. Similarly, principals of symmetry are also some of the fundamental and most useful tools in modern mathematical natural science that play a major role in theory and applications. As a consequence, it is not surprising that the desire to understand the origin of life, based on the genetic code, forces us to involve symmetry as a mathematical concept...
September 13, 2017: Bio Systems
https://www.readbyqxmd.com/read/28918285/controlling-cell-volume-for-efficient-phb-production-by-halomonas
#9
Xiao-Ran Jiang, Zhi-Hao Yao, Guo-Qiang Chen
Bacterial morphology is decided by cytoskeleton protein MreB and cell division protein FtsZ encoded by essential genes mreB and ftsZ, respectively. Inactivating mreB and ftsZ lead to increasing cell sizes and cell lengths, respectively, yet seriously reduce cell growth ability. Here we develop a temperature-responsible plasmid expression system for compensated expression of relevant gene(s) in mreB or ftsZ disrupted recombinants H. campaniensis LS21, allowing mreB or ftsZ disrupted recombinants to grow normally at 30°C in a bioreactor for 12h so that a certain cell density can be reached, followed by 36h cell size expansions or cell shape elongations at elevated 37°C at which the mreB and ftsZ encoded plasmid pTKmf failed to replicate in the recombinants and thus lost themselves...
September 13, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28918236/gene-expression-profiles-of-cell-adhesion-molecules-matrix-metalloproteinases-and-their-tissue-inhibitors-in-canine-oral-tumors
#10
Sirinun Pisamai, Anudep Rungsipipat, Chanin Kalpravidh, Gunnaporn Suriyaphol
Perturbation of cell adhesion can be essential for tumor cell invasion and metastasis, but the current knowledge on the gene expression of molecules that mediate cell adhesion in canine oral tumors is limited. The present study aimed to investigate changes in the gene expression of cell adhesion molecules (E-cadherin or CDH1, syndecan 1 or SDC1, NECTIN2 and NECTIN4), matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs), in canine oral tumors, including benign tumors, oral melanoma (OM) and non-tonsillar oral squamous cell carcinoma (OSCC), by quantitative real-time reverse transcription PCR...
September 8, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28918196/expression-and-purification-of-human-and-saccharomyces-cerevisiae-equilibrative-nucleoside-transporters
#11
Rebba C Boswell-Casteel, Jennifer M Johnson, Zygy Roe-Žurž, Kelli D Duggan, Hannah Schmitz, Franklin A Hays
Nucleosides play an essential role in the physiology of eukaryotes by acting as metabolic precursors in de novo nucleic acid synthesis and energy metabolism. Nucleosides also act as ligands for purinergic receptors. Equilibrative nucleoside transporters (ENTs) are polytopic integral membrane proteins that aid in regulating plasmalemmal flux of purine and pyrimidine nucleosides and nucleobases. ENTs exhibit broad substrate selectivity across different isoforms and utilize diverse mechanisms to drive substrate flux across membranes...
September 13, 2017: Protein Expression and Purification
https://www.readbyqxmd.com/read/28918121/conserved-rules-in-embryonic-development-of-cortical-interneurons
#12
REVIEW
Christine Laclef, Christine Métin
This review will focus on early aspects of cortical interneurons (cIN) development from specification to migration and final positioning in the human cerebral cortex. These mechanisms have been largely studied in the mouse model, which provides unique possibilities of genetic analysis, essential to dissect the molecular and cellular events involved in cortical development. An important goal here is to discuss the conservation and the potential divergence of these mechanisms, with a particular interest for the situation in the human embryo...
September 13, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28918110/emergent-behaviors-in-rbcs-flows-in-micro-channels-using-digital-particle-image-velocimetry
#13
F Cairone, D Ortiz, P J Cabrales, M Intaglietta, M Bucolo
The key points in the design of microfluidic Lab-On-a-Chips for blood tests are the simplicity of the microfluidic chip geometry, the portability of the monitoring system and the ease on-chip integration of the data analysis procedure. The majority of those, recently designed, have been used for blood separation, however their introduction, also, for pathological conditions diagnosis would be important in different biomedical contexts. To overcome this lack is necessary to establish the relation between the RBCs flow and blood viscosity changes in micro-vessels...
September 13, 2017: Microvascular Research
https://www.readbyqxmd.com/read/28918043/mir-206-133b-cluster-a-weapon-against-lung-cancer
#14
REVIEW
Jing-Yu Pan, Cheng-Cao Sun, Zhuo-Yue Bi, Zhen-Long Chen, Shu-Jun Li, Qing-Qun Li, Yu-Xuan Wang, Yong-Yi Bi, De-Jia Li
Lung cancer is a deadly disease that ends numerous lives around the world. MicroRNAs (miRNAs) are a group of non-coding RNAs involved in a variety of biological processes, such as cell growth, organ development, and tumorigenesis. The miR-206/133b cluster is located on the human chromosome 6p12.2, which is essential for growth and rebuilding of skeletal muscle. The miR-206/133b cluster has been verified to be dysregulated and plays a crucial role in lung cancer. miR-206 and miR-133b participate in lung tumor cell apoptosis, proliferation, migration, invasion, angiogenesis, drug resistance, and cancer treatment...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918042/electronic-structures-of-lna-phosphorothioate-oligonucleotides
#15
Henrik G Bohr, Irene Shim, Cy Stein, Henrik Ørum, Henrik F Hansen, Troels Koch
Important oligonucleotides in anti-sense research have been investigated in silico and experimentally. This involves quantum mechanical (QM) calculations and chromatography experiments on locked nucleic acid (LNA) phosphorothioate (PS) oligonucleotides. iso-potential electrostatic surfaces are essential in this study and have been calculated from the wave functions derived from the QM calculations that provide binding information and other properties of these molecules. The QM calculations give details of the electronic structures in terms of e...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918026/anti-fibrotic-effects-of-synthetic-oligodeoxynucleotide-for-tgf-%C3%AE-1-and-smad-in-an-animal-model-of-liver-cirrhosis
#16
Jung-Yeon Kim, Hyun-Jin An, Woon-Hae Kim, Mi-Gyeong Gwon, Hyemin Gu, Yoon-Yub Park, Kwan-Kyu Park
Liver fibrosis is characterized by changes in tissue architecture and extracellular matrix composition. Liver fibrosis affects not only hepatocytes but also the non-parenchymal cells such as hepatic stellate cells (HSCs), which are essential for maintaining an intact liver structure and function. Transforming growth factor β1 (TGF-β1) is a multifunctional cytokine that induces liver fibrosis through activation of Smad signaling pathways. To improve a new therapeutic approach, synthetic TGF-β1/Smad oligodeoxynucleotide (ODN) was used to suppress both TGF-β1 expression and Smad transcription factor using a combination of antisense ODN and decoy ODN...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28918013/mir-135b-stimulates-osteosarcoma-recurrence-and-lung-metastasis-via-notch-and-wnt-%C3%AE-catenin-signaling
#17
Hua Jin, Song Luo, Yun Wang, Chang Liu, Zhenghao Piao, Meng Xu, Wei Guan, Qing Li, Hua Zou, Qun-You Tan, Zhen-Zhou Yang, Yan Wang, Dong Wang, Cheng-Xiong Xu
Cancer stem cells (CSCs) play an important role in osteosarcoma (OS) metastasis and recurrence, and both Wnt/β-catenin and Notch signaling are essential for the development of the biological traits of CSCs. However, the mechanism that underlies the simultaneous hyperactivation of both Wnt/β-catenin and Notch signaling in OS remains unclear. Here, we report that expression of miR-135b correlates with the overall and recurrence-free survival of OS patients, and that miR-135b has an activating effect on both Wnt/β-catenin and Notch signaling...
September 15, 2017: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/28917977/the-role-of-the-endocannabinoid-system-in-the-antihyperalgesic-effect-of-cedrus-atlantica-essential-oil-inhalation-in-a-mouse-model-of-postoperative-pain
#18
Aline Armiliato Emer, Nathalia Nahas Donatello, Ana Paula Batisti, Luiz Augusto de Oliveira Belmonte, Adair R S Santos, Daniel F Martins
ETHNOPHARMACOLOGICAL RELEVANCE: Cedar is part of the phylum of conifers, and it´s essential oil has been used for therapeutic purposes since ancient times. In our previous study, we have demonstrated that the inhalation of the Cedrus atlantica essential oil (CaEO) induces an antihyperalgesic effect in a model of postoperative pain. But the mechanism that underlies this effect is not yet fully known. AIM OF THE STUDY: This study investigates the involvement of the endocannabinoid system in the antihyperalgesic effect produced by the inhalation of CaEO in a post operative pain model...
September 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28917972/research-on-the-antioxidant-wound-healing-and-anti-inflammatory-activities-and-the-phytochemical-composition-of-maritime-pine-pinus-pinaster-ait
#19
İbrahim Tümen, Esra Küpeli Akkol, Hakkı Taştan, Ipek Süntar, Mehmet Kurtca
ETHNOPHARMACOLOGICAL RELEVANCE: Ethnobotanical investigations have shown that the Pinus species have been used against rheumatic pain and for wound healing in Turkish folk medicine. MATERIAL AND METHODS: In this study, phytochemical composition, antioxidant, anti-inflammatory, and wound healing activities of Maritime Pine (Pinus pinaster Ait.) that is collected in Turkey are investigated. Essential oil composition and the amount of extracts (lipophilic and hydrophilic) of maritime pine wood and fresh cone samples had been tested...
September 13, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28917968/the-effect-of-fennel-essential-oil-in-combination-with-antibiotics-on-staphylococcus-aureus-strains-isolated-from-carriers
#20
Paweł Kwiatkowski, Magdalena Mnichowska-Polanowska, Agata Pruss, Helena Masiuk, Małgorzata Dzięcioł, Stefania Giedrys-Kalemba, Monika Sienkiewicz
An increase in the number of staphylococcal infections and carriers among medical staff has forced us to seek more and more effective antibacterial agents. Bacteria from the Staphylococcus genus possessing different mechanisms of resistance are the cause of nosocomial infections. The objective of our investigations was susceptibility of S. aureus strains isolated from nasal vestibule of medical students to fennel essential oil. The GC-MS analysis of fennel essential oil revealed eleven constituents among which a majority of trans-anethole (80%) was found...
September 13, 2017: Burns: Journal of the International Society for Burn Injuries
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