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https://www.readbyqxmd.com/read/28103658/-etoposide-and-carboplatin-effective-for-treatment-of-small-cell-carcinoma-of-prostate-a-report-of-two-cases
#1
Satoru Yumiba, Toshihisa Asakura, Takayuki Okada, Mototaka Satoh, Mikio Nin, Masao Tsujihata
Case 1 : A 76-year-old man consulted a physician because of pollakisuria, decline of urinary stream. A high level of serum prostate specific antigen (PSA) was detected and he came to our hospital. He was diagnosed to have prostate cancer, cT3aN0M1b, and was treated with combined androgen blockage (CAB). Two years and nine months later, postrenal failure appeared and serum level of neuron-specific enolase (NSE) was 162 ng/ml. We performed re-biopsy of prostate, and pathological examination indicated small cell carcinoma of the prostate...
December 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28103132/functional-gains-in-energy-and-cell-metabolism-after-tspo-gene-insertion
#2
Guo-Jun Liu, Ryan J Middleton, Winnie Wai-Ying Kam, David Y Chin, Claire R Hatty, Ronald H Y Chan, Richard B Banati
Recent loss-of-function studies in tissue-specific as well as global Tspo (Translocator Protein 18 kDa) knockout mice have not confirmed its long assumed indispensability for the translocation of cholesterol across the mitochondrial inter-membrane space, a rate-limiting step in steroid biosynthesis. Instead, recent studies in global Tspo knockout mice indicate that TSPO may play a more fundamental role in cellular bioenergetics, which may include the indirect down-stream regulation of transport or metabolic functions...
January 19, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28097715/c-di-amp-modulates-listeria-monocytogenes-central-metabolism-to-regulate-growth-antibiotic-resistance-and-osmoregulation
#3
Aaron T Whiteley, Nicholas E Garelis, Bret N Peterson, Philip H Choi, Liang Tong, Joshua J Woodward, Daniel A Portnoy
Cyclic di-adenosine monophosphate (c-di-AMP) is a conserved nucleotide second messenger critical for bacterial growth and resistance to cell wall-active antibiotics. In Listeria monocytogenes, the sole diadenylate cyclase, DacA, is essential in rich, but not synthetic media and ΔdacA mutants are highly sensitive to the β-lactam antibiotic cefuroxime. In this study, loss of function mutations in the oligopeptide importer (oppABCDF) and glycine betaine importer (gbuABC) allowed ΔdacA mutants to grow in rich medium...
January 18, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28096964/g-csf-for-mobilizing-transplanted-bone-marrow-stem-cells-in-rat-model-of-parkinson-s-disease
#4
Manouchehr Safari, Behnaz Jafari, Sam Zarbakhsh, Hamidreza Sameni, Abbas Ali Vafaei, Nasrin Khan Mohammadi, Laya Ghahari
OBJECTIVES: Granulocyte-colony stimulating factor (G-CSF) is used in clinical practice for the treatment of neutropenia and to stimulate generation of hematopoietic stem cells in bone marrow donors. In the present study, the ability of G-CSF in mobilizing exogenous bone marrow stem cells (BMSCs) from peripheral blood into the brain was tested. We for the first time injected a small amount of BMSCs through the tail vein. MATERIALS AND METHODS: We choose 25 male Wistar rats (200-250 g) were lesioned by 6-OHDA injected into the left substantia nigra, pars compacta (SNpc)...
December 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28096887/thylakoids-reduce-body-fat-and-fat-cell-size-by-binding-to-dietary-fat-making-it-less-available-for-absorption-in-high-fat-fed-mice
#5
Karin G Stenkula, Eva-Lena Stenblom, Caroline Montelius, Emil Egecioglu, Charlotte Erlanson-Albertsson
BACKGROUND: Dietary thylakoids derived from spinach have beneficial effects on body fat accumulation and blood lipids as demonstrated in humans and rodents. Important mechanisms established include delayed fat digestion in the intestine, without causing steatorrhea, and increased fatty acid oxidation in intestinal cells. The objective of our study was to elucidate if increased fecal fat excretion is an important mechanism to normalize adipose tissue metabolism during high-fat feeding in mice supplemented with thylakoids...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28096376/myosin-driven-transport-network-in-plants
#6
Elizabeth G Kurth, Valera V Peremyslov, Hannah L Turner, Kira S Makarova, Jaime Iranzo, Sergei L Mekhedov, Eugene V Koonin, Valerian V Dolja
We investigate the myosin XI-driven transport network in Arabidopsis using protein-protein interaction, subcellular localization, gene knockout, and bioinformatics analyses. The two major groups of nodes in this network are myosins XI and their membrane-anchored receptors (MyoB) that, together, drive endomembrane trafficking and cytoplasmic streaming in the plant cells. The network shows high node connectivity and is dominated by generalists, with a smaller fraction of more specialized myosins and receptors...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28096261/tuning-collective-cell-migration-by-cell-cell-junction-regulation
#7
Peter Friedl, Roberto Mayor
Collective cell migration critically depends on cell-cell interactions coupled to a dynamic actin cytoskeleton. Important cell-cell adhesion receptor systems implicated in controlling collective movements include cadherins, immunoglobulin superfamily members (L1CAM, NCAM, ALCAM), Ephrin/Eph receptors, Slit/Robo, connexins and integrins, and an adaptive array of intracellular adapter and signaling proteins. Depending on molecular composition and signaling context, cell-cell junctions adapt their shape and stability, and this gradual junction plasticity enables different types of collective cell movements such as epithelial sheet and cluster migration, branching morphogenesis and sprouting, collective network migration, as well as coordinated individual-cell migration and streaming...
January 17, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28095473/the-asymmetric-cell-division-regulators-par3-scribble-and-pins-gpsm2-are-not-essential-for-erythroid-development-or-enucleation
#8
Christina B Wölwer, Nathan Gödde, Luke B Pase, Imogen A Elsum, Krystle Y B Lim, Faruk Sacirbegovic, Carl R Walkley, Sarah Ellis, Shigeo Ohno, Fumio Matsuzaki, Sarah M Russell, Patrick O Humbert
Erythroid enucleation is the process by which the future red blood cell disposes of its nucleus prior to entering the blood stream. This key event during red blood cell development has been likened to an asymmetric cell division (ACD), by which the enucleating erythroblast divides into two very different daughter cells of alternate molecular composition, a nucleated cell that will be removed by associated macrophages, and the reticulocyte that will mature to the definitive erythrocyte. Here we investigated gene expression of members of the Par, Scribble and Pins/Gpsm2 asymmetric cell division complexes in erythroid cells, and functionally tested their role in erythroid enucleation in vivo and ex vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28092765/cytotoxic-genotoxic-and-mutagenic-evaluation-of-surface-waters-from-a-coal-exploration-region
#9
Cynthia Silva Porta, Débora Lemes Dos Santos, Hélio Vieira Bernardes, Bruno Corrêa Bellagamba, Anaí Duarte, Johnny Ferraz Dias, Fernanda Rabaioli da Silva, Mauricio Lehmann, Juliana da Silva, Rafael Rodrigues Dihl
Coal mining generates a considerable amount of waste, which is disposed of in piles or dams near mining sites. As a result, leachates may reach rivers and streams, promoting the wide dispersion of contaminants in solution and as particulate matter. The present study evaluated the cytotoxic, genotoxic, and mutagenic action of surface waters collected around a thermoelectric power plant and the largest mining area in Brazil (Candiota). Four sites in Candiota stream were selected, and samples were collected in winter and summer...
January 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28092486/use-of-polyclonal-monoclonal-antibody-therapies-in-transplantation
#10
Melissa Y Yeung, Steven Gabardi, Mohamed H Sayegh
For over thirty years, antibody (mAb)-based therapies have been a standard component of transplant immunosuppression, and yet much remains to be learned in order for us to truly harness their therapeutic capabilities. Current mAbs used in transplant directly target and destroy graft-destructive immune cells, interrupt cytokine and costimulation-dependent T and B cell activation, and prevent down-stream complement activation. Areas covered: This review summarizes our current approaches to using antibody-based therapies to prevent and treat allograft rejection...
January 16, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28092011/microbubble-moving-in-blood-flow-in-microchannels-effect-on-the-cell-free-layer-and-cell-local-concentration
#11
David Bento, Lúcia Sousa, Tomoko Yaginuma, Valdemar Garcia, Rui Lima, João M Miranda
Gas embolisms can hinder blood flow and lead to occlusion of the vessels and ischemia. Bubbles in microvessels circulate as tubular bubbles (Taylor bubbles) and can be trapped, blocking the normal flow of blood. To understand how Taylor bubbles flow in microcirculation, in particular, how bubbles disturb the blood flow at the scale of blood cells, experiments were performed in microchannels at a low Capillary number. Bubbles moving with a stream of in vitro blood were filmed with the help of a high-speed camera...
March 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28090126/fourier-transform-infrared-absorption-spectroscopy-for-quantitative-analysis-of-gas-mixtures-at-low-temperatures-for-homeland-security-applications
#12
D C Meier, K D Benkstein, W S Hurst, P M Chu
Performance standard specifications for point chemical vapor detectors are established in ASTM E 2885-13 and ASTM E 2933-13. The performance evaluation of the detectors requires the accurate delivery of known concentrations of the chemical target to the system under test. Referee methods enable the analyte test concentration and associated uncertainties in the analyte test concentration to be validated by independent analysis, which is especially important for reactive analytes. This work extends the capability of a previously demonstrated method for using Fourier transform infrared (FT-IR) absorption spectroscopy for quantitatively evaluating the composition of vapor streams containing hazardous materials at Acute Exposure Guideline Levels (AEGL) to include test conditions colder than laboratory ambient temperatures...
May 2017: Journal of Testing and Evaluation
https://www.readbyqxmd.com/read/28089515/navigation-through-the-plasma-membrane-molecular-landscape-shapes-random-organelle-movement
#13
Alison R Dun, Gabriel J Lord, Rhodri S Wilson, Deirdre M Kavanagh, Katarzyna I Cialowicz, Shuzo Sugita, Seungmee Park, Lei Yang, Annya M Smyth, Andreas Papadopulos, Colin Rickman, Rory R Duncan
Eukaryotic plasma membrane organization theory has long been controversial, in part due to a dearth of suitably high-resolution techniques to probe molecular architecture in situ and integrate information from diverse data streams [1]. Notably, clustered patterning of membrane proteins is a commonly conserved feature across diverse protein families (reviewed in [2]), including the SNAREs [3], SM proteins [4, 5], ion channels [6, 7], and receptors (e.g., [8]). Much effort has gone into analyzing the behavior of secretory organelles [9-13], and understanding the relationship between the membrane and proximal organelles [4, 5, 12, 14] is an essential goal for cell biology as broad concepts or rules may be established...
January 9, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28089405/use-of-essential-oils-following-traumatic-burn-injury-a-case-study
#14
Kathleen Jopke, Heather Sanders, Rosemary White-Traut
Hospital admissions related to burn injury reach 40,000 annually. Patients who experience extensive burns require longer hospital stays and are at increased risk for infection and hospital acquired conditions. This comparative case study is a two patient matched case control design that follows the hospital course of two children who experienced burn injuries. For one of these patients, with the consent of the child's parents, the grandmother treated her granddaughter with essential oils. Essential oils have the potential to inhibit microbial growth, support treatment of wounds, and facilitate healing...
January 13, 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/28088645/towards-solving-the-hard-problem-of-consciousness-the-varieties-of-brain-resonances-and-the-conscious-experiences-that-they-support
#15
Stephen Grossberg
The hard problem of consciousness is the problem of explaining how we experience qualia or phenomenal experiences, such as seeing, hearing, and feeling, and knowing what they are. To solve this problem, a theory of consciousness needs to link brain to mind by modeling how emergent properties of several brain mechanisms interacting together embody detailed properties of individual conscious psychological experiences. This article summarizes evidence that Adaptive Resonance Theory, or ART, accomplishes this goal...
December 6, 2016: Neural Networks: the Official Journal of the International Neural Network Society
https://www.readbyqxmd.com/read/28088556/regulation-of-docetaxel-sensitivity-in-prostate-cancer-cells-by-hsa-mir-125a-3p-via-modulation-of-mta1-signaling
#16
Jian-Zhou Liu, Feng-Yan Yin, Chang-You Yan, Hui Wang, Xiao-Hui Luo
OBJECTIVE: To identify the potential down-stream targets of hsa-miR-125a-3p, a mature form of miR-125a, during the pathogenesis of chemoresistance in prostate cancer (PCa). METHODS: Expression levels of hsa-miR-125a-3p was assessed in chemoresistant PCa tissues and experimentally-established chemoresistant cells using quantitative RT-PCR (qRT-PCR). The effect of hsa-miR-125a-3p knockdown or hsa-miR-125a-3p overexpression on the Dox-induced cell death was evaluated using apoptosis ELISA in chemosensitive PC-3 cells or in chemoresistant PC-3 cells (PC-3R)...
January 11, 2017: Urology
https://www.readbyqxmd.com/read/28087734/increased-mitophagy-in-the-skeletal-muscle-of-spinal-and-bulbar-muscular-atrophy-patients
#17
Doriana Borgia, Adriana Malena, Marco Spinazzi, Maria Andrea Desbats, Leonardo Salviati, Aaron P Russell, Giovanni Miotto, Laura Tosatto, Elena Pegoraro, Gianni Sorarù, Maria Pennuto, Lodovica Vergani
Spinal and bulbar muscular atrophy (SBMA) is a neuromuscular disorder caused by polyglutamine expansion in the androgen receptor (AR) and characterized by the loss of lower motor neurons. Here we investigated pathological processes occurring in muscle biopsy specimens derived from SBMA patients and, as controls, age-matched healthy subjects and patients suffering from amyotrophic lateral sclerosis (ALS) and neurogenic atrophy. We detected atrophic fibers in the muscle of SBMA, ALS and neurogenic atrophy patients...
January 13, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28078426/calreticulin-is-required-for-calcium-homeostasis-and-proper-pollen-tube-tip-growth-in-petunia
#18
Anna Suwińska, Piotr Wasąg, Przemysław Zakrzewski, Marta Lenartowska, Robert Lenartowski
Calreticulin is involved in stabilization of the tip-focused Ca (2+) gradient and the actin cytoskeleton arrangement and function that is required for several key processes driving Petunia pollen tube tip growth. Although the precise mechanism is unclear, stabilization of a tip-focused calcium (Ca(2+)) gradient seems to be critical for pollen germination and pollen tube growth. We hypothesize that calreticulin (CRT), a Ca(2+)-binding/buffering chaperone typically residing in the lumen of the endoplasmic reticulum (ER) of eukaryotic cells, is an excellent candidate to fulfill this role...
January 11, 2017: Planta
https://www.readbyqxmd.com/read/28077720/local-circuits-of-v1-layer-4b-neurons-projecting-to-v2-thick-stripes-define-distinct-cell-classes-and-avoid-cytochrome-oxidase-blobs
#19
Jeff Yarch, Frederick Federer, Alessandra Angelucci
: Decades of anatomical studies on the primate primary visual cortex (V1) have led to a detailed diagram of V1 intrinsic circuitry, but this diagram lacks information about the output targets of V1 cells. Understanding how V1 local processing relates to downstream processing requires identification of neuronal populations defined by their output targets. In primates, V1 layers (L)2/3 and 4B send segregated projections to distinct cytochrome oxidase (CO) stripes in area V2: neurons in CO blob columns project to thin stripes while neurons outside blob columns project to thick and pale stripes, suggesting functional specialization of V1-to-V2 CO streams...
January 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28074962/crossed-flow-microfluidics-for-high-throughput-screening-of-bioactive-chemical-cell-interactions
#20
Ziqiu Tong, Angela Ivask, Keying Guo, Scott McCormick, Enzo Lombi, Craig Priest, Nicolas H Voelcker
This paper describes the use of crossed laminar flow microfluidics for the selective capture of multiple cell types on-chip aiming for high throughput screening of various cell treatment compounds. Parallel laminar streams containing different cell types were perfused and captured on a cell adhesion protein-functionalized reaction area. Thereafter, parallel streams containing cell treatment solutions were delivered orthogonally over the captured cells. Multiple cell types and a range of cell treatment conditions could therefore be assessed in a single experiment...
January 11, 2017: Lab on a Chip
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