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https://www.readbyqxmd.com/read/28351049/macular-edema-of-choroidal-origin
#1
Gisèle Soubrane
Macular edema is most often clinically defined as an accumulation of serous fluid within the neurosensory retina with increased thickness of the central retina. In exudative age-related macular degeneration the leakage of fluid from the choroidal new vessels may be the origin of macular edema. Their abnormal permeability and the inflammatory reaction are mechanisms involved in this accumulation of fluid, which occurs in all layers. Cystoid macular edema is more often associated with subepithelial occult choroidal neovascularization (CNV) than it is with pre-epithelial classic CNV...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28351048/retinitis-pigmentosa-and-other-dystrophies
#2
Sarah Mrejen, Isabelle Audo, Sébastien Bonnel, José-Alain Sahel
Retinitis pigmentosa (RP) is a heterogeneous group of inherited retinal degenerations characterized by progressive degeneration of rod and cone cells that affects predominantly peripheral visual fields. Macular edema may cause additional central visual acuity decrease. Cystoid macular edema (CME) is one of the few treatable causes of visual loss in RP. The prevalence of CME in RP has been found to be between 10 and 20% on fluorescein angiography-based studies, and as high as 49% on reports based on optical coherence tomography...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28351036/hypoxia-induces-multidrug-resistance-via-enhancement-of-epidermal-growth-factor-like-domain-7-expression-in-non-small-lung-cancer-cells
#3
Xiaochun Shen, Qiaoming Zhi, Yunliang Wang, Zhi Li, Jin Zhou, Jianan Huang
Chemotherapy is widely used in non-small cell lung cancer (NSCLC) treatment, yet multidrug resistance (MDR) is a major chemotherapeutic obstacle in both resectable and advanced NSCLC. Epidermal growth factor-like domain 7 (EGFL7), also known as vascular endothelial stain, is an endothelial cell-derived secreted factor that regulates vascular tube formulation. The aim of this study was to investigate the potential relationships between EGFL7 and MDR in NSCLC cells. We first obtained the CDDP-based MDR phenotype cell line A549/CDDP by repeated exposure to a proper concentration of CDDP (cisplatin) from original A549 cells...
March 29, 2017: Chemotherapy
https://www.readbyqxmd.com/read/28350844/isolation-and-characterization-of-alternatively-spliced-variants-of-the-mouse-sigma1-receptor-gene-sigmar1
#4
Ling Pan, David A Pasternak, Jin Xu, Mingming Xu, Zhigang Lu, Gavril W Pasternak, Ying-Xian Pan
The sigma1 receptor acts as a chaperone at the endoplasmic reticulum, associates with multiple proteins in various cellular systems, and involves in a number of diseases, such as addiction, pain, cancer and psychiatric disorders. The sigma1 receptor is encoded by the single copy SIGMAR1 gene. The current study identifies five alternatively spliced variants of the mouse sigma1 receptor gene using a polymerase chain reaction cloning approach. All the splice variants are generated by exon skipping or alternative 3' or 5' splicing, producing the truncated sigma1 receptor...
2017: PloS One
https://www.readbyqxmd.com/read/28350803/pharmacogenomic-identification-of-small-molecules-for-lineage-specific-manipulation-of-subventricular-zone-germinal-activity
#5
Kasum Azim, Diane Angonin, Guillaume Marcy, Francesca Pieropan, Andrea Rivera, Vanessa Donega, Claudio Cantù, Gareth Williams, Benedikt Berninger, Arthur M Butt, Olivier Raineteau
Strategies for promoting neural regeneration are hindered by the difficulty of manipulating desired neural fates in the brain without complex genetic methods. The subventricular zone (SVZ) is the largest germinal zone of the forebrain and is responsible for the lifelong generation of interneuron subtypes and oligodendrocytes. Here, we have performed a bioinformatics analysis of the transcriptome of dorsal and lateral SVZ in early postnatal mice, including neural stem cells (NSCs) and their immediate progenies, which generate distinct neural lineages...
March 2017: PLoS Biology
https://www.readbyqxmd.com/read/28350666/long-term-comparison-between-human-normal-conchal-and-microtia-chondrocytes-regenerated-by-tissue-engineering-on-nanofiber-polyglycolic-acid-scaffolds
#6
Hitomi Nakao, Robin D Jacquet, Mark Shasti, Noritaka Isogai, Ananth S Murthy, William J Landis
BACKGROUND: Previous regeneration studies of auricle-shaped cartilage by tissue engineering leave unresolved whether the chondrocyte phenotype from human auricular chondrocytes seeded onto polymeric scaffolds is retained over the long term and whether microtia remnants may be a viable cell source for auricular reconstruction. METHODS: Chondrocytes were isolated from human ears, either normal conchal ear or microtia cartilage remnants, expanded in vitro, and seeded onto nanoscale-diameter polyglycolic acid sheets...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28346317/the-csf-immune-response-in-hiv-1-associated-cryptococcal-meningitis-macrophage-activation-correlates-of-disease-severity-and-effect-of-antiretroviral-therapy
#7
James E Scriven, Lisa M Graham, Charlotte Schutz, Thomas J Scriba, Katalin A Wilkinson, Robert J Wilkinson, David R Boulware, Britta C Urban, Graeme Meintjes, David G Lalloo
BACKGROUND: Immune modulation may improve outcome in HIV-associated cryptococcal meningitis. Animal studies suggest alternatively activated macrophages are detrimental but human studies are limited. We performed a detailed assessment of the cerebrospinal fluid (CSF) immune response and examined immune correlates of disease severity and poor outcome, and the effects of antiretroviral therapy (ART). METHODOLOGY: We enrolled persons ≥18 years with first episode of HIV-associated cryptococcal meningitis...
March 24, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28346106/isolation-and-characterization-of-a-distinct-subpopulation-from-the-wm115-cell-line-that-resembles-in-vitro-properties-of-melanoma-cancer-stem-cells
#8
Sonia G Escobar, Mark H Chin, Mark L Sandberg, Han Xu
Despite key advances in cancer therapies, malignant tumors, such as melanoma, continue to be one of the leading causes of mortality. Recent debate on whether cancer can originate from a tumor-initiating subpopulation has permeated oncology and stem cell research. It has been well established that primary and immortalized tumor cells consist of heterogeneous cell populations. The profound effect of tumor heterogeneity on tumor growth and drug resistance remains elusive, but it is highly likely that subpopulations of cancer cells have different capabilities of self-renewal and drug resistance...
February 1, 2017: SLAS Discov
https://www.readbyqxmd.com/read/28346104/bioengineered-3d-glial-cell-culture-systems-and-applications-for-neurodegeneration-and-neuroinflammation
#9
P Marc D Watson, Edel Kavanagh, Gary Allenby, Matthew Vassey
Neurodegeneration and neuroinflammation are key features in a range of chronic central nervous system (CNS) diseases such as Alzheimer's and Parkinson's disease, as well as acute conditions like stroke and traumatic brain injury, for which there remains significant unmet clinical need. It is now well recognized that current cell culture methodologies are limited in their ability to recapitulate the cellular environment that is present in vivo, and there is a growing body of evidence to show that three-dimensional (3D) culture systems represent a more physiologically accurate model than traditional two-dimensional (2D) cultures...
February 1, 2017: SLAS Discov
https://www.readbyqxmd.com/read/28345607/time-and-dose-dependent-actions-of-cardiotonic-steroids-on-transcriptome-and-intracellular-content-of-na-and-k-a-comparative-analysis
#10
Elizaveta A Klimanova, Artem M Tverskoi, Svetlana V Koltsova, Svetlana V Sidorenko, Olga D Lopina, Johanne Tremblay, Pavel Hamet, Leonid V Kapilevich, Sergei N Orlov
Recent studies demonstrated that in addition to Na(+),K(+)-ATPase inhibition cardiotonic steroids (CTSs) affect diverse intracellular signaling pathways. This study examines the relative impact of [Na(+)]i/[K(+)]i-mediated and -independent signaling in transcriptomic changes triggered by the endogenous CTSs ouabain and marinobufagenin (MBG) in human umbilical vein endothelial cells (HUVEC). We noted that prolongation of incubation increased the apparent affinity for ouabain estimated by the loss of [K(+)]i and gain of [Na(+)]i...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28345450/erratum
#11
(no author information available yet)
Weber, K. (2017). Differences in Types and Incidence of Neoplasms in Wistar Han and Sprague-Dawley Rats. J Toxicol Pathol45, 64-75. (Original DOI: 10.1177/0192623316672075) In the January 2017 issue of Toxicologic Pathology, a number of in text Table citations were incorrectly labeled. The following are the sentences with corrected Table number (this has also been corrected in the online version): Many fewer neoplasms are recorded for the endocrine pancreas compared with islet cell tumor incidences (Table 3)...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28345101/nontoxic-organic-solvents-identified-using-an-a-priori-approach-with-hansen-solubility-parameters
#12
Daisuke Nakamura, Minoru Hirano, Riichiro Ohta
Nontoxicities of organic solvents were predicted using Hansen solubility parameters and various truly nontoxic solvents were identified according to the prediction. The nontoxicity of solvents originates from their exhibition of poor solubility or low diffusivity toward cell constituents and good stability against hydrolytic degradation.
March 27, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28344994/a-new-broad-range-plasmid-for-dna-delivery-in-eukaryotic-cells-using-lactic-acid-bacteria-in%C3%A2-vitro-and-in%C3%A2-vivo-assays
#13
Pamela Mancha-Agresti, Mariana Martins Drumond, Fillipe Luiz Rosa do Carmo, Monica Morais Santos, Janete Soares Coelho Dos Santos, Franco Venanzi, Jean-Marc Chatel, Sophie Yvette Leclercq, Vasco Azevedo
Lactococcus lactis is well documented as a promising candidate for development of novel oral live vaccines. It has been broadly engineered for heterologous expression, as well as for plasmid expression vector delivery, directly inside eukaryotic cells, for DNA vaccine, or as therapeutic vehicle. This work describes the characteristics of a new plasmid, pExu (extra chromosomal unit), for DNA delivery using L. lactis and evaluates its functionality both by in vitro and in vivo assays. This plasmid exhibits the following features: (1) a theta origin of replication and (2) an expression cassette containing a multiple cloning site and a eukaryotic promoter, the cytomegalovirus (pCMV)...
March 17, 2017: Molecular Therapy. Methods & Clinical Development
https://www.readbyqxmd.com/read/28344873/a-specific-immune-and-lymphatic-profile-characterizes-the-pre-metastatic-state-of-the-sentinel-lymph-node-in-patients-with-early-cervical-cancer
#14
Cédric Balsat, Silvia Blacher, Michael Herfs, Maureen Van de Velde, Nicolas Signolle, Philippe Sauthier, Charles Pottier, Stéphanie Gofflot, Marjolein De Cuypere, Philippe Delvenne, Frédéric Goffin, Agnès Noel, Frédéric Kridelka
The lymph node (LN) pre-metastatic niche is faintly characterized in lymphophilic human neoplasia, although LN metastasis is considered as the strongest prognostic marker of patient survival. Due to its specific dissemination through a complex bilateral pelvic lymphatic system, early cervical cancer is a relevant candidate for investigating the early nodal metastatic process. In the present study, we analyzed in-depth both the lymphatic vasculature and the immune climate of pre-metastatic sentinel LN (SLN), in 48 cases of FIGO stage IB1 cervical neoplasms...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28344867/cd4-and-cd8-t-cells-are-both-needed-to-induce-paraneoplastic-neurological-disease-in-a-mouse-model
#15
Christina Gebauer, Béatrice Pignolet, Lidia Yshii, Emilie Mauré, Jan Bauer, Roland Liblau
Paraneoplastic neurological disorders (PNDs) are rare human autoimmune diseases that mostly affect the central nervous system (CNS). They are triggered by an efficient immune response against a neural self-antigen that is ectopically expressed in neoplastic tumors. Due to this shared antigenic expression, the immune system reacts not only to tumor cells but also to neural cells resulting in neurological damage. Growing data point to a major role of cell-mediated immunity in PNDs associated to autoantibodies against intracellular proteins...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28344778/methodological-advances-in-imaging-intravital-axonal-transport
#16
REVIEW
James N Sleigh, Alessio Vagnoni, Alison E Twelvetrees, Giampietro Schiavo
Axonal transport is the active process whereby neurons transport cargoes such as organelles and proteins anterogradely from the cell body to the axon terminal and retrogradely in the opposite direction. Bi-directional transport in axons is absolutely essential for the functioning and survival of neurons and appears to be negatively impacted by both aging and diseases of the nervous system, such as Alzheimer's disease and amyotrophic lateral sclerosis. The movement of individual cargoes along axons has been studied in vitro in live neurons and tissue explants for a number of years; however, it is currently unclear as to whether these systems faithfully and consistently replicate the in vivo situation...
2017: F1000Research
https://www.readbyqxmd.com/read/28344687/disseminated-pancreatic-neuroendocrine-neoplasm-nen-with-an-uncommon-localisation-in-the-central-nervous-system-a-case-report
#17
Joanna Białkowska, Agnieszka Kolasińska-Ćwikła, Dorota Mroczkowska, Mariusz Sowa, Łukasz Grabarczyk, Wojciech Maksymowicz, Andrzej Cichocki, Jarosław B Ćwikła
BACKGROUND: Neuroendocrine neoplasms (NEN) are rare neoplasms that originate from neuroendocrine cells and are characterized by the potential of hormonal activity. Approximately 70% of these tumours are located in the gastrointestinal system (GI), followed by the bronchi, endocrine glands-like C cells of the thyroid (medullary carcinoma), the parasympathetic and sympathetic system (paragangliomas, pheochromocytoma) and other very rare locations. The prevalence of cerebral metastases in neuroendocrine tumours is estimated by various authors to be approximately 1...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28344563/a-review-of-demographic-medical-and-treatment-variables-associated-with-health-related-quality-of-life-hrqol-in-survivors-of-hematopoietic-stem-cell-hsct-and-bone-marrow-transplantation-bmt-during-childhood
#18
REVIEW
Trude Reinfjell, Marta Tremolada, Lonnie K Zeltzer
Hematopoietic stem cell transplantation (HSCT) is a standard treatment after disease relapse and failure of conventional treatments for cancer in childhood or as a first line treatment for some high-risk cancers. Since hematopoietic stem cells can be found in the marrow (previously called a bone marrow transplantation) or periphery, we refer to HSCT as inclusive of HSCT regardless of the origin of the stem cells. HSCT is associated with adverse side effects, prolonged hospitalization, and isolation. Previous studies have shown that survivors of HSCT are at particularly high risk for developing late effects and medical complications, and thus, in addition to survival, quality of life in survivors of HSCT is an important outcome...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28343994/revelation-of-the-dynamic-progression-of-hypoxia-reoxygenation-injury-by-visualization-of-the-lysosomal-hydrogen-peroxide
#19
Yuanjun Zhu, Tongliang Zhou, Lingfei Yang, Lan Yuan, Lei Liang, Ping Xu
Hydrogen peroxide (H2O2) plays an important role in pathological conditions, such as cerebral ischemia-reperfusion (I-R) injury. Fluorescent probes may serve as valuable tools to detect the amount, temporal and spatial distribution of H2O2 in living cells. To investigate the role of lysosomal H2O2 involved in cerebral I-R injury, we designed and synthesized a lysosome-targetable two-photon fluorescent probe ztl-4, through expansion and substitution of the original pyridazinone scaffold, conjugation of electronic-donating aromatic ring and precise terminal modification of the alkyl linker...
March 24, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28343438/hsa-mir-27b-is-up-regulated-in-cytomegalovirus-infected-human-glioma-cells-targets-engrailed-2-and-inhibits-its-expression
#20
Linqian Wang, Ming Yang, Shijing Liao, Wei Liu, Gan Dai, Guojun Wu, Liyu Chen
Human cytomegalovirus (HCMV) dormant infection can alter the expression of the hosts' microRNAs (miRNAs) and impact on the regulation of target genes. To investigate the differentially expressed miRNAs induced by HCMV in human glioma U251 cells, a comprehensive miRNA screen was performed. As a result, 19 up-regulated and 14 down-regulated miRNAs were determined. Of these, hsa-miR-27b (miR-27b) attracted our attention. MiR-27b levels in U251 cells increased 7.70-fold, 8.64-fold, and 4.78-fold, respectively, post 24 h, 48 h, and 72 h HCMV infection, compared to those in the mimic-infected cells, and this up-regulation was further confirmed by quantitative RT-PCR...
January 1, 2017: Experimental Biology and Medicine
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