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https://www.readbyqxmd.com/read/29232484/juvenile-social-experience-and-differential-age-related-changes-in-the-dendritic-morphologies-of-subareas-of-the-prefrontal-cortex-in-rats
#1
B T Himmler, R Mychasiuk, A Nakahashi, S M Himmler, S M Pellis, B Kolb
Juvenile social interactions have been shown to influence the dendritic complexity of neurons in the prefrontal cortex. In particular, social play induces pruning of the cells in the medial prefrontal cortex (mPFC), whereas interacting with multiple partners, whether those interactions involve play or not, increases the complexity of cells in the orbital frontal cortex (OFC). Previous studies suggest that these changes differ in their stability during adulthood. In the present study, rats were reared in groups of either four (quads) or two (pairs) and the brains of the rats from each rearing condition were then harvested at 60 days (i...
December 12, 2017: Synapse
https://www.readbyqxmd.com/read/29232477/behavior-driven-arc-expression-is-reduced-in-all-ventral-hippocampal-subfields-compared-to-ca1-ca3-and-dentate-gyrus-in-rat-dorsal-hippocampus
#2
M K Chawla, V L Sutherland, K Olson, B L McNaughton, C A Barnes
Anatomical connectivity and lesion studies reveal distinct functional heterogeneity along the dorsal-ventral axis of the hippocampus. The immediate early gene Arc is known to be involved in neural plasticity and memory and can be used as a marker for cell activity that occurs, for example, when hippocampal place cells fire. We report here, that Arc is expressed in a greater proportion of cells in dorsal CA1, CA3 and dentate gyrus (DG), following spatial behavioral experiences compared to ventral hippocampal subregions (dorsal CA1= 33%; ventral CA1= 13%; dorsal CA3 = 23%; ventral CA3 = 8%; and dorsal DG = 2...
December 12, 2017: Hippocampus
https://www.readbyqxmd.com/read/29232108/biocompatible-electroactive-tetra-aniline-conjugated-peptide-nanofibers-for-neural-differentiation
#3
Idil Arioz, Ozlem Erol, Gokhan Bakan, F Begum Dikecoglu, Ahmet Emin Topal, Mustafa Urel, Aykutlu Dana, Ayse B Tekinay, Mustafa O Guler
Peripheral nerve injuries cause devastating problems for the quality of the patients' lives and regeneration following a damage to the peripheral nervous system is limited depending on the degree of the damage. Use of nanobiomaterials can provide therapeutic approaches for the treatment of peripheral nerve injuries. Electroactive biomaterials, in particular, can provide a promising cure for the regeneration of nerve defects. Here, a supramolecular electroactive nanosystem with tetra(aniline) (TA) containing peptide nanofibers was developed and utilized for nerve regeneration...
December 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29231967/therapeutic-potential-of-porcine-bronchoalveolar-fluid-derived-mesenchymal-stromal-cells-in-a-pig-model-of-lps-induced-ali
#4
Mahesh Khatri, Levi Arthur Richardson
In this study, we isolated mesenchymal stromal (stem) cells (MSCs) from broncho-alveolar lavage fluid (BAL) of 2-6 week-old commercial pigs. BAL-MSCs displayed fibroblastic morphology and possessed self-renewal properties. Similar to bone-marrow MSCs, BAL-MSCs expressed mesenchymal markers and both cell types lacked the expression of hematopoetic markers. BAL-MSCs, when cultured in differentiation induction media, differentiated into adipocytes, osteocytes and chondrocytes. Next, we examined if BAL-MSCs have the ability to treat lipopolysaccharide (LPS)-induced acute lung injury (ALI) in a pig model...
December 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29231816/cell-lineage-and-cell-cycling-analyses-of-the-4d%C3%A2-micromere-using-live-imaging-in-the-marine-annelid-platynereis-dumerilii
#5
B Duygu Özpolat, Mette Handberg-Thorsager, Michel Vervoort, Guillaume Balavoine
Cell lineage, cell cycle, and cell fate are tightly associated in developmental processes, but in vivo studies at single-cell resolution showing the intricacies of these associations are rare due to technical limitations. In this study on the marine annelid Platynereis dumerilii, we investigated the lineage of the 4d micromere, using high-resolution long-term live imaging complemented with a live-cell cycle reporter. 4d is the origin of mesodermal lineages and the germline in many spiralians. We traced lineages at single-cell resolution within 4d and demonstrate that embryonic segmental mesoderm forms via teloblastic divisions, as in clitellate annelids...
December 12, 2017: ELife
https://www.readbyqxmd.com/read/29230706/differential-diagnosis-of-the-small-renal-masses-role-of-the-apparent-diffusion-coefficient-of-the-diffusion-weighted-mri
#6
Yulian Mytsyk, Ihor Dutka, Borys Yuriy, Iryna Maksymovych, Martin Caprnda, Katarina Gazdikova, Luis Rodrigo, Peter Kruzliak, Polina Illjuk, Ammad Ahmad Farooqi
INTRODUCTION: Renal cell carcinoma (RCC) accounts for approximately 3% of adult malignancies and more than 90% of neoplasms arising from the kidney. Uninformative percutaneous kidney biopsies vary from 10 to 23%. As a result, 7.5-33.6% of partial nephrectomies in patients with small renal masses (SRM) are performed on benign renal tumors. The aim of this study was to assess the feasibility of the apparent diffusion coefficient (ADC) of the diffusion-weighted imaging (DWI) of MRI, as RCC imaging biomarker for differentiation of SRM...
December 11, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/29230672/the-role-of-b-cell-maturation-antigen-in-the-biology-and-management-of-and-as-a-potential-therapeutic-target-in-multiple-myeloma
#7
Eric Sanchez, Emily J Smith, Moryel A Yashar, Saurabh Patil, Mingjie Li, Autumn L Porter, Edward J Tanenbaum, Remy E Schlossberg, Camilia M Soof, Tara Hekmati, George Tang, Cathy S Wang, Haiming Chen, James R Berenson
B-cell maturation antigen (BCMA) was originally identified as a cell membrane receptor, expressed exclusively on late stage B-cells and plasma cells (PCs). Investigations of BCMA as a target for therapeutic intervention in multiple myeloma (MM) were initiated in 2007, using cSG1 as a naked antibody (Ab) as well as an Ab-drug conjugate (ADC) targeting BCMA, ultimately leading to ongoing clinical studies for previously treated MM patients. Since then, multiple companies have developed anti-BCMA-directed ADCs...
December 11, 2017: Targeted Oncology
https://www.readbyqxmd.com/read/29230527/lefty2-inhibits-endometrial-receptivity-by-downregulating-orai1-expression-and-store-operated-ca2-entry
#8
Madhuri S Salker, Yogesh Singh, Ruban R Peter Durairaj, Jing Yan, Md Alauddin, Ni Zeng, Jennifer H Steel, Shaqiu Zhang, Jaya Nautiyal, Zoe Webster, Sara Y Brucker, Diethelm Wallwiener, B Anne Croy, Jan J Brosens, Florian Lang
Early embryo development and endometrial differentiation are initially independent processes, and synchronization, imposed by a limited window of implantation, is critical for reproductive success. A putative negative regulator of endometrial receptivity is LEFTY2, a member of the transforming growth factor (TGF)-β family. LEFTY2 is highly expressed in decidualizing human endometrial stromal cells (HESCs) during the late luteal phase of the menstrual cycle, coinciding with the closure of the window of implantation...
December 11, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29230118/prognostic-factors-in-typical-and-atypical-pulmonary-carcinoids
#9
Robert A Ramirez, David T Beyer, Anne E Diebold, Brianne A Voros, Maria M Chester, Yi-Zarn Wang, J Philip Boudreaux, Eugene A Woltering, Ann-Porter Uhlhorn, Pamela Ryan, Richard J Campeau, Lowell B Anthony
Background: Typical and atypical carcinoids represent approximately 2% of all lung tumors. Survival of patients with typical bronchial carcinoids, unlike the survival of patients with most lung tumors, is generally long but dependent on stage. We report the findings of the Ochsner Medical Center/Louisiana State University (LSU) Health Sciences Center neuroendocrine tumor (NET) program. Methods: A database with all patients seen at the Ochsner Medical Center/LSU NET program was queried for patients with bronchopulmonary NET...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29229883/in-vitro-leishmanicidal-antibacterial-and-antitumour-potential-of-anhydrocochlioquinone-a-obtained-from-the-fungus-cochliobolus-sp
#10
Fernanda F Campos, Jonas P Ramos, Djalma M DE Oliveira, Tania M A Alves, Elaine M DE Souza-Fagundes, Carlos L Zani, Fabio C Sampaio, Attilio Converti, Betania B Cota
The bioassay-guided fractionation of the ethyl acetate extract of the fungus Cochliobolus sp. highlighted leishmanicidal activity and allowed for anhydrocochlioquinone A (ANDC-A) isolation. MS, 1D and 2D NMR spectra of this compound were in agreement with those published in the literature. ANDC-A exhibited leishmanicidal activity with EC 50 value of 22.4 microgram/mL (44 mu M) and, when submitted to the microdilution assay against Gram-ositive and Gram-negative bacteria, showed a minimal inhibitory concentration against Staphylococcus aureus ATCC 25295 of 128 microgram/mL (248...
December 2017: Journal of Biosciences
https://www.readbyqxmd.com/read/29229781/differential-regulation-of-tlr4-induced-il-10-production-in-b-cells-and-macrophages-reveals-a-novel-role-for-rsk1-and-2-in-b-cells
#11
Ruhcha V Sutavani, Iain R Phair, Rebecca Barker, Alison McFarlane, Natalia Shpiro, Stuart Lang, Andrew Woodland, J Simon C Arthur
Increasing evidence has linked dysregulated IL-10 production by IL-10+ve B cells to autoimmunity, highlighting the importance of improving the understanding of the regulation of IL-10 production in these cells. In both B cells and myeloid cells, IL-10 can be produced in response to Toll-like receptor (TLR) agonists. In macrophages, previous studies have established that mitogen- and stress-activated protein kinases (MSKs) regulate IL-10 production via the phosphorylation of cAMP response element-binding (CREB) protein on the IL-10 promoter...
December 11, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29228886/continuous-stimulation-with-differentiation-factors-is-necessary-to-enhance-osteogenic-differentiation-of-human-mesenchymal-stem-cells-in-vitro
#12
Bruno Reible, Gerhard Schmidmaier, Matthäus Prokscha, Arash Moghaddam, Fabian Westhauser
Bone defect treatment belongs to the most challenging fields in orthopedic surgery and requires the well-coordinated application of mesenchymal stem cells (MSC) and differentiation factors. MSC isolated from reaming material (RMSC) and iliac crest (BMSC) in combination with bone morphogenetic protein-7 (BMP-7) and insulin-like growth factor-1 (IGF-1) have been used. The short half-life of both factors limit their applications: a burst release of the factor can probably not induce sustainable differentiation...
October 2017: Growth Factors
https://www.readbyqxmd.com/read/29228688/altered-follicular-helper-t-cell-impaired-antibody-production-in-a-murine-model-of-myelodysplastic-syndromes
#13
Huijuan Jiang, Ningbo Cui, Liyan Yang, Chunyan Liu, Lanzhu Yue, Lifang Guo, Huaquan Wang, Zonghong Shao
Myelodysplastic syndromes (MDS) are a group of clonal hematopoietic diseases which have a high risk of progressing to acute myeloid leukemia. MDS patients have immunologic deficiency, including T and B cells dysfunction. Follicular T helper cells (Tfh, CD4+CXCR5+) are an important subset of helper T cells which help to the formation of germinal centers and B cells differentiation. In this study, we investigated the proportion and function of Tfh using NUP98-HOXD13 transgenic (NHD13) mice model with MDS phenotype...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228681/cyclophosphamide-causes-osteoporosis-in-c57bl-6-male-mice-suppressive-effects-of-cyclophosphamide-on-osteoblastogenesis-and-osteoclastogenesis
#14
Dongfeng Zhao, Chenglong Wang, Yongjian Zhao, Bing Shu, Youji Jia, Shufen Liu, Hongshen Wang, Junli Chang, Weiwei Dai, Sheng Lu, Qi Shi, Yanping Yang, Yan Zhang, Yongjun Wang
The clinical evidence indicated that cyclophosphamide (CPD), one of the chemotherapy drugs, caused severe deteriorations in bones of cancer patients. However, the exact mechanisms by which CPD exerts effects on bone remodeling is not yet fully elucidated. Therefore, this study was performed to investigate the role and potential mechanism of CPD in osteoblastogenesis and osteoclastogenesis. Here it was found that CPD treatment (100mg/kg/day) for 7 days led to osteoporosis phenotype in male mice. CPD inhibited osteoblastogenesis as shown by decreasing the number and differentiation of bone mesenchymal stem cells (MSCs) and reducing the formation and activity of osteoblasts...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228427/mir-155-regulates-lymphoma-cell-proliferation-and-apoptosis-through-targeting-socs3-jak-stat3-signaling-pathway
#15
X-D Li, X-M Li, J-W Gu, X-C Sun
OBJECTIVE: Janus kinase (JAK)- signal transducer and activator of transcription (STAT) signaling pathway participates in regulating cell proliferation, differentiation, and apoptosis, and related to lymphoma. Suppressors of cytokine signaling 3 (SOCS3) is a negative regulator of the JAK-STAT signaling pathway. SOCS3 reduction and miR-155 up-regulation are associated with lymphoma pathogenesis. Bioinformatics analysis showed the complementary binding site between miR-155 and SOCS3. This study aimed to investigate the role of miR-155 in regulating SOCS3/JAK-STAT signaling pathway and affecting diffuse large B cell lymphoma (DLBCL) cell proliferation and apoptosis...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228031/transcriptional-profiling-of-pbmcs-unravels-b-cell-mediated-immunopathogenic-imprints-of-hcv-vasculitis
#16
Emily Comstock, Cheol-Woo Kim, Alison Murphy, Benjamin Emmanuel, Xi Zhang, Michael Sneller, Bhawna Poonia, Shyamasundaran Kottilil
B cell depletion therapy using rituximab has been shown to be effective in achieving remission in patients with HCV-mixed cryoglobulinemic (MC) vasculitis. Previously, we have demonstrated abnormalities in peripheral immune cells involving neutrophils, chemotaxis, and innate immune activation among patients with HCV-MC vasculitis when compared to HCV patients without vasculitis. In this study, we evaluated the effect of B cell depletion therapy on transcriptional profiles of peripheral blood mononuclear cells before and after riruximab therapy, in order to unravel the pathogenic mechanism involved in HCV-MC vasculitis induced by abnormal B cell proliferation...
2017: PloS One
https://www.readbyqxmd.com/read/29227285/shifts-in-podocyte-histone-h3k27me3-regulate-mouse-and-human-glomerular-disease
#17
Syamantak Majumder, Karina Thieme, Sri N Batchu, Tamadher A Alghamdi, Bridgit B Bowskill, M Golam Kabir, Youan Liu, Suzanne L Advani, Kathryn E White, Laurette Geldenhuys, Karthik K Tennankore, Penelope Poyah, Ferhan S Siddiqi, Andrew Advani
Histone protein modifications control fate determination during normal development and dedifferentiation during disease. Here, we set out to determine the extent to which dynamic changes to histones affect the differentiated phenotype of ordinarily quiescent adult glomerular podocytes. To do this, we examined the consequences of shifting the balance of the repressive histone H3 lysine 27 trimethylation (H3K27me3) mark in podocytes. Adriamycin nephrotoxicity and subtotal nephrectomy (SNx) studies indicated that deletion of the histone methylating enzyme EZH2 from podocytes decreased H3K27me3 levels and sensitized mice to glomerular disease...
December 11, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29227108/visualizing-single-cell-secretion-dynamics-with-single-protein-sensitivity
#18
Matthew McDonald, André Gemeinhardt, Katharina König, Marek Piliarik, Stefanie Schaffer, Simon Völkl, Michael Aigner, Andreas Mackensen, Vahid Sandoghdar
Cellular secretion of proteins into the extracellular environment is an essential mediator of critical biological mechanisms, including cell-to-cell communication, immunological response, targeted delivery, and differentiation. Here, we report a novel methodology that allows for the real-time detection and imaging of single unlabeled proteins that are secreted from individual living cells. This is accomplished via interferometric detection of scattered light (iSCAT), and is demonstrated with Laz388 cells-an Epstein-Barr virus (EBV) transformed B cell line...
December 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/29226137/identification-of-key-pathways-and-genes-in-advanced-coronary-atherosclerosis-using-bioinformatics-analysis
#19
Xiaowen Tan, Xiting Zhang, Lanlan Pan, Xiaoxuan Tian, Pengzhi Dong
Background: Coronary artery atherosclerosis is a chronic inflammatory disease. This study aimed to identify the key changes of gene expression between early and advanced carotid atherosclerotic plaque in human. Methods: Gene expression dataset GSE28829 was downloaded from Gene Expression Omnibus (GEO), including 16 advanced and 13 early stage atherosclerotic plaque samples from human carotid. Differentially expressed genes (DEGs) were analyzed. Results: 42,450 genes were obtained from the dataset...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29225579/regulation-of-tissue-growth-by-the-mammalian-hippo-signaling-pathway
#20
REVIEW
Kevin I Watt, Kieran F Harvey, Paul Gregorevic
The integrative control of diverse biological processes such as proliferation, differentiation, apoptosis and metabolism is essential to maintain cellular and tissue homeostasis. Disruption of these underlie the development of many disease states including cancer and diabetes, as well as many of the complications that arise as a consequence of aging. These biological outputs are governed by many cellular signaling networks that function independently, and in concert, to convert changes in hormonal, mechanical and metabolic stimuli into alterations in gene expression...
2017: Frontiers in Physiology
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