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https://www.readbyqxmd.com/read/28822765/local-radiotherapy-reduces-circulating-tumor-cells-and-metastatic-progression-role-of-circulating-cell-detection-in-response-to-vascular-damaging-therapies
#1
Nathan A Koonce, Mazen A Juratli, Chengzhong Cai, Mustafa Sarimollaoglu, Yulian A Menyaev, Judy Dent, Charles M Quick, Ruud P M Dings, Dmitry Nedosekin, Vladimir Zharov, Robert J Griffin
Noninvasive biological readouts of tumor metastatic risk and therapeutic efficacy are needed as healthcare costs rise. Conventional imaging modalities are expensive; require significant periods of time to see appreciable change and repetitive use increases risk of hazardous side effects. Utilizing circulating tumor cells (CTCs) as a minimally invasive biological readout of tumor progression or therapeutic response is increasingly being studied. While focus has primarily been on the predictive value of naturally occurring CTCs, a more recent effort has emerged regarding the potential consequence of therapy induced CTCs...
August 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28822686/the-role-of-human-monoacylglycerol-lipase-hmagl-binding-pocket-in-breakup-of-unsaturated-phospholipid-membranes
#2
Ioannis Karageorgos, Vitalii I Silin, Nikolai Zvonok, John Marino, David R Janero, Alexandros Makriyannis
Human monoacylglycerol lipase (hMAGL) plays a key role in homeostatic tuning of the endocannabinoid signaling system and supports aggressive tumorogenesis, making this enzyme a promising therapeutic target. hMAGL features a membrane-associated lid domain that regulates entry of endocannabinoid lipid substrates into the hydrophobic channel accessing the active site, likely from the membrane bilayer. The present work applied simultaneous surface plasmon resonance and electrochemical impedance spectroscopy measurements to show that, in absence of the substrate, hMAGL can remove phospholipid molecules from the membrane and, thereby, disintegrate pre-formed, intact, tethered phospholipid bilayer membrane mimetics (tBLMs) composed of unsaturated phosphatidylcholines...
August 16, 2017: Analytical Biochemistry
https://www.readbyqxmd.com/read/28822634/development-and-efficacy-testing-of-a-hollow-awl-that-leads-to-patent-bone-marrow-channels-and-greater-mesenchymal-stem-cell-mobilization-during-bone-marrow-stimulation-cartilage-repair-surgery
#3
Byoung-Hyun Min, Minh-Dung Truong, Hyung Keun Song, Jae Ho Cho, Do Young Park, Heon Ju Kweon, Jun Young Chung
PURPOSE: To investigate whether microfracture with a cannulated hollow awl can yield more patent marrow channels and allow greater mobilization of the reparable cells to the defect compared to the conventional awl with blunt end in human knee joints. METHODS: Patients who were planned for 1-stage bilateral total knee arthroplasty due to degenerative osteoarthritis with well-preserved lateral femoral condylar cartilage were retrospectively included. A 10-mm × 20-mm, rectangular, full-thickness chondral defect was made on the lateral femoral condyle on each knee joint...
August 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28821870/enhanced-silicon-availability-leads-to-increased-methane-production-nutrient-and-toxicant-mobility-in-peatlands
#4
Gloria-Maria Susanne Reithmaier, Klaus-Holger Knorr, Sebastian Arnhold, Britta Planer-Friedrich, Jörg Schaller
Peatlands perform important ecosystem functions, such as carbon storage and nutrient retention, which are affected, among other factors, by vegetation and peat decomposition. The availability of silicon (Si) in peatlands differs strongly, ranging from <1 to >25 mg L(-1). Since decomposition of organic material was recently shown to be accelerated by Si, the aim of this study was to examine how Si influences decomposition of carbon and nutrient and toxicant mobilization in peatlands. We selected a fen site in Northern Bavaria with naturally bioavailable Si pore water concentrations of 5 mg/L and conducted a Si addition experiment...
August 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28821647/plasticity-beyond-v1-reinforcement-of-motion-perception-upon-binocular-central-retinal-lesions-in-adulthood
#5
Kalina Burnat, Tjing-Tjing Hu, Małgorzata Kossut, Ulf T Eysel, Lutgarde Arckens
Induction of a central retinal lesion in both eyes of adult mammals is a model for macular degeneration and leads to retinotopic map reorganization in the primary visual cortex (V1). Here we characterized the spatio-temporal dynamics of molecular activity levels in the central and peripheral representation of five higher order visual areas, V2/18, V3/19, V4/21a,V5/PMLS, area 7, and V1/17, in adult cats with central 10° retinal lesions (both sexes), by means of real-time PCR for the neuronal activity reporter gene zif268...
August 16, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28821477/tgf-%C3%AE-induced-intracellular-pai-1-is-responsible-for-retaining-hematopoietic-stem-cells-in-the-niche
#6
Takashi Yahata, Abd Aziz Ibrahim, Yukari Muguruma, Mesut Eren, Alexander M Shaffer, Nobuo Watanabe, Satoko Kaneko, Tetsuo Nakabayashi, Takashi Dan, Noriaki Hirayama, Douglas E Vaughan, Toshio Miyata, Kiyoshi Ando
Hematopoietic stem and progenitor cells (HSPCs) reside in the supportive stromal niche in bone marrow (BM); when needed, however, they are rapidly mobilized into the circulation, suggesting that HSPCs are intrinsically highly motile but are usually stayed in the niche. We questioned what determines the motility of HSPCs. Here we show that transforming growth factor (TGF)-β-induced intracellular plasminogen activator inhibitor (PAI)-1 activation is responsible for keeping HSPCs in the BM niche. We found that the expression of PAI-1, a downstream target of TGF-β-signaling, was selectively augmented in niche-residing HSPCs...
August 18, 2017: Blood
https://www.readbyqxmd.com/read/28821226/comprehensive-proteome-profiling-in-aedes-albopictus-to-decipher-wolbachia-arbovirus-interference-phenomenon
#7
Yoann Saucereau, Claire Valiente Moro, Cindy Dieryckx, Jean-William Dupuy, Florence-Hélène Tran, Vincent Girard, Patrick Potier, Patrick Mavingui
BACKGROUND: Aedes albopictus is a vector of arboviruses that cause severe diseases in humans such as Chikungunya, Dengue and Zika fevers. The vector competence of Ae. albopictus varies depending on the mosquito population involved and the virus transmitted. Wolbachia infection status in believed to be among key elements that determine viral transmission efficiency. Little is known about the cellular functions mobilized in Ae. albopictus during co-infection by Wolbachia and a given arbovirus...
August 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28820348/where-to-now-avert-answered-an-important-question-but-raised-many-more
#8
Mark T Bayley, Audrey Bowen, Coralie English, Robert Teasell, Janice J Eng
A Very Early Rehabilitation Trial (AVERT) was a Phase 3 randomized trial with over 2100 subjects post stroke that had unexpected results with better outcomes for usual care than those receiving very early mobilization. This review of published stroke clinical practice guidelines highlights that recommendations for mobilization have changed after publication of AVERT but also that developers have struggled to provide recommendations for appropriate dose, duration and intensity of mobilization in the acute post stroke period with available analyses from AVERT and other literature...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28820325/small-alarmone-synthetases-as-novel-bacterial-rna-binding-proteins
#9
Vasili Hauryliuk, Gemma C Atkinson
The alarmone nucleotides guanosine pentaphosphate (pppGpp) and tetraphosphate (ppGpp), collectively referred to as (p)ppGpp, are key regulators of bacterial growth, stress adaptation, antibiotic tolerance and pathogenicity. We have recently shown that the Small Alarmone Synthetase (SAS) RelQ from the Gram-positive pathogen Enterococcus faecalis has an RNA-binding activity (Beljantseva et al. 2017). RelQ's activities as an enzyme and as a RNA-binding protein are mutually incompatible: binding of single-stranded RNA potently inhibits (p)ppGpp synthesis in a sequence-specific manner, and RelQ's enzymatic activity destabilizes the RNA:RelQ complex...
August 18, 2017: RNA Biology
https://www.readbyqxmd.com/read/28820303/rapid-ventricular-pacing-for-clip-reconstruction-of-complex-unruptured-intracranial-aneurysms-results-of-an-interdisciplinary-prospective-trial
#10
Juergen Konczalla, Johannes Platz, Stephan Fichtlscherer, Haitham Mutlak, Ulrich Strouhal, Volker Seifert
OBJECTIVE To date, treatment of complex unruptured intracranial aneurysms (UIAs) remains challenging. Therefore, advanced techniques are required to achieve an optimal result in treating these patients safely. In this study, the safety and efficacy of rapid ventricular pacing (RVP) to facilitate microsurgical clip reconstruction was investigated prospectively in a joined neurosurgery, anesthesiology, and cardiology study. METHODS Patients with complex UIAs were prospectively enrolled. Both the safety and efficacy of RVP were evaluated by recording cardiovascular events and outcomes of patients as well as the amount of aneurysm occlusion after the surgical clip reconstruction procedure...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28820283/n-3-pufas-induce-inflammatory-tolerance-by-formation-of-keap1-containing-sqstm1-p62-bodies-and-activation-of-nfe2l2
#11
Jennifer Mildenberger, Ida Johansson, Ismail Sergin, Eli Kjøbli, Jan Kristian Damås, Babak Razani, Trude Helen Flo, Geir Bjørkøy
Inflammation is crucial in the defense against infections but must be tightly controlled to limit detrimental hyperactivation. Our diet influences inflammatory processes and omega-3 polyunsaturated fatty acids (n-3 PUFAs) have known anti-inflammatory effects. The balance of pro- and anti-inflammatory processes is coordinated by macrophages and macroautophagy/autophagy has recently emerged as a cellular process that dampens inflammation. Here we report that the n-3 PUFA docosahexaenoic acid (DHA) transiently induces cytosolic speckles of the autophagic receptor SQSTM1/p62 (sequestosome 1) (described as SQSTM1/p62-bodies) in macrophages...
August 18, 2017: Autophagy
https://www.readbyqxmd.com/read/28819519/simultaneous-ipsilateral-fractures-of-distal-and-proximal-ends-of-the-radius
#12
Khalid Ibn El Kadi, Mounir Benabid, Sarr Saliou, Oussama El Assil, Amine Marzouki, Kamal Lahrach, Fawzi Boutayeb
We treated a patient with a rare combination of ipsilateral fractures of the distal and proximal ends of the radius. A man aged 42 years had simultaneous fractures of the distal and proximal ends of the radius (radial neck) following a roadside accident. The distal end fracture of the radius was treated with surgical reduction and T-plate volar fixation, and the undisplaced radial neck fracture was treated by an above elbow splintage for 2 weeks. The elbow mobilization was started at 2 weeks. The distal radius was protected for another 4 weeks in a below elbow functional brace...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28818971/dynamic-multinuclear-sites-formed-by-mobilized-copper-ions-in-no-x-selective-catalytic-reduction
#13
Christopher Paolucci, Ishant Khurana, Atish A Parekh, Sichi Li, Arthur J Shih, Hui Li, John R Di Iorio, Jonatan D Albarracin-Caballero, Aleksey Yezerets, Jeffrey T Miller, W Nicholas Delgass, Fabio H Ribeiro, William F Schneider, Rajamani Gounder
Copper ions exchanged into zeolites are active for the selective catalytic reduction (SCR) of NO x with NH3, but the low-temperature rate dependence on Cu volumetric density is inconsistent with reaction at single sites. We combine steady-state and transient kinetic measurements, x-ray absorption spectroscopy, and first-principles calculations to demonstrate that under reaction conditions, mobilized Cu ions can travel through zeolite windows and form transient ion pairs that participate in an O2-mediated Cu(I) → Cu(II) redox step integral to SCR...
August 17, 2017: Science
https://www.readbyqxmd.com/read/28818311/characterization-of-the-flow-cytometric-assay-for-ex%C3%A2-vivo-monitoring-of-cytotoxicity-mediated-by-antigen-specific-cytotoxic-t-lymphocytes
#14
Akira Takagi, Yutaka Horiuchi, Masanori Matsui
Several non-radioactive methods have widely been utilized to detect antigen-specific cytotoxic T lymphocyte (CTL) responses instead of the classical (51)Cr-release assay. These methods include intracellular cytokine staining, major histocompatibility complex-class I tetramers, and the CD107a mobilization assay. However, they do not directly measure target-cell death. In contrast, several attempts have been made to develop the flow cytometric CTL (FC-CTL) assay for evaluation of cytotoxicity. However, further improvement is necessary for it to become standardized...
August 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28818246/cancer-prevention-during-early-adulthood-highlights-from-a-meeting-of-experts
#15
Dawn M Holman, Mary C White, Meredith L Shoemaker, Greta M Massetti, Mary C Puckett, Claire D Brindis
Using a life course approach, the Centers for Disease Control and Prevention's Division of Cancer Prevention and Control and the National Association of Chronic Disease Directors co-hosted a 2-day meeting with 15 multidisciplinary experts to consider evidence linking factors in early adulthood to subsequent cancer risk and strategies for putting that evidence into practice to reduce cancer incidence. This paper provides an overview of key themes from those meeting discussions, drawing attention to the influence that early adulthood can have on lifetime cancer risk and potential strategies for intervention during this phase of life...
September 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28818059/influence-of-sense-of-coherence-on-adolescents-self-perceived-dental-aesthetics-a-cross-sectional-study
#16
Aline Cavalcanti da Costa, Fabrícia Soares Rodrigues, Priscila Prosini da Fonte, Aronita Rosenblatt, Nicola Patricia Thérèse Innes, Mônica Vilela Heimer
BACKGROUND: Sense of coherence (SOC) is a psychosocial factor capable of influencing perception of health, improving one's ability to manage life. It is the central construct of salutogenesis. SOC allows for identification and mobilization of resources to effectively manage or solve problems, promoting health and quality of life. Using Wilson-Cleary's conceptual model we hypothesized that SOC might contribute to self-perception of dental aesthetics. The aim of this study was to investigate whether SOC levels were related to self-perception of dental aesthetics against assessed normative orthodontic treatment need among adolescents...
August 17, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28817667/glycoprotein-ib-activation-by-thrombin-stimulates-the-energy-metabolism-in-human-platelets
#17
Norma Corona de la Peña, Manuel Gutiérrez-Aguilar, Ileana Hernández-Reséndiz, Álvaro Marín-Hernández, Sara Rodríguez-Enríquez
Thrombin-induced platelet activation requires substantial amounts of ATP. However, the specific contribution of each ATP-generating pathway i.e., oxidative phosphorylation (OxPhos) versus glycolysis and the biochemical mechanisms involved in the thrombin-induced activation of energy metabolism remain unclear. Here we report an integral analysis on the role of both energy pathways in human platelets activated by several agonists, and the signal transducing mechanisms associated with such activation. We found that thrombin, Trap-6, arachidonic acid, collagen, A23187, epinephrine and ADP significantly increased glycolytic flux (3-38 times vs...
2017: PloS One
https://www.readbyqxmd.com/read/28816374/no-change-in-energy-efficiency-in-lactation-insights-from-a-longitudinal-study
#18
Richard L Bender, Heather S Williams, Darna L Dufour
OBJECTIVES: Lactation is the most energy-demanding phase of reproduction for human females, but it is still unclear how women in different environments are able to meet this additional energy demand. Previous studies have investigated whether changes in metabolism could have an energy-sparing effect in lactation, with conflicting results. Here, we asked whether increased energy efficiency in physical activity serves as an energy-sparing mechanism in lactation. METHODS: We used a longitudinal design with a control group...
August 17, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28816358/trpc3-mediated-ca-2-signals-as-a-promising-strategy-to-boost-therapeutic-angiogenesis-in-failing-hearts-the-role-of-autologous-endothelial-colony-forming-cells
#19
REVIEW
Francesco Moccia, Angela Lucariello, Germano Guerra
Endothelial progenitor cells (EPCs) are a sub-population of bone marrow-derived mononuclear cells that are released in circulation to restore damaged endothelium during its physiological turnover or rescue blood perfusion after an ischemic insult. Additionally, they may be mobilized from perivascular niches located within larger arteries' wall in response to hypoxic conditions. For this reason, EPCs have been regarded as an effective tool to promote revascularization and functional recovery of ischemic hearts, but clinical application failed to exploit the full potential of patients-derived cells...
August 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28816275/-clinical-application-of-retroperitoneal-laparoscopic-surgery-combined-with-mini-flank-incision-hybrid-surgery-for-partial-nephrectomy-of-complex-renal-tumors
#20
X J Ye, J Liu, A Ablimit, L L Xiong, S J Liu, T Xu, X B Huang
OBJECTIVE: To evaluate the clinical effect and safety of retroperitoneal laparoscopic surgery combined with mini-flank incision "hybrid surgery" for partial nephrectomy of complex renal tumors. METHODS: Between April 2015 and December 2016, the clinical data from 16 patients with complex renal tumors who underwent the "hybrid surgery", including 10 males and 6 females, were retrospectively reviewed. The average age was (50.2±10.7) years, 9 cases were located in the left side and 7 cases in the right side, the mean tumor size was (6...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
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