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https://www.readbyqxmd.com/read/28214623/rheology-and-microstructure-of-aqueous-suspensions-of-nanocrystalline-cellulose-rods
#1
Yuan Xu, Aleks D Atrens, Jason R Stokes
HYPOTHESIS: Nanocrystalline cellulose (NCC) is a negatively charged rod-like colloid obtained from the hydrolysis of plant material. It is thus expected that NCC suspensions display a rich set of phase behaviour with salt and pH because of its anisotropic shape and electrical double layer that gives rise to liquid crystallinity and self-assembly respectively. It should thus be possible to tune the rheological properties of NCC suspensions for a wide variety of end-use applications. EXPERIMENTS: Rheology and structural analysis techniques are used to characterise surface-sulphated NCC suspensions as a function of pH, salinity (NaCl) and NCC concentration...
February 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28195526/regulating-the-access-to-awareness-brain-activity-related-to-probe-related-and-spontaneous-reversals-in-binocular-rivalry
#2
Brian A Metzger, Kyle E Mathewson, Evelina Tapia, Monica Fabiani, Gabriele Gratton, Diane M Beck
Research on the neural correlates of consciousness (NCC) has implicated an assortment of brain regions, ERP components, and network properties associated with visual awareness. Recently, the P3b ERP component has emerged as a leading NCC candidate. However, typical P3b paradigms depend on the detection of some stimulus change, making it difficult to separate brain processes elicited by the stimulus itself from those associated with updates or changes in visual awareness. Here we used binocular rivalry to ask whether the P3b is associated with changes in awareness even in the absence of changes in the object of awareness...
February 14, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28174181/cardiovascular-benefits-associated-with-higher-dietary-k-versus-lower-dietary-na-evidence-from-population-and-mechanistic-studies
#3
Alicia A McDonough, Luciana C Veiras, Claire A Guevara, Donna L Ralph
The WHO ranks hypertension the leading global risk factor for disease, specifically, cardiovascular disease. Blood pressure is higher in westernized populations consuming sodium-rich processed foods compared to isolated societies consuming potassium-rich natural foods. Evidence suggests that lowering dietary Na(+) is particularly beneficial in hypertensives who consume a high Na(+) diet. Nonetheless, numerous population studies demonstrate a relationship between higher dietary K(+), estimated from urinary excretion or dietary recall, and lower blood pressure regardless of sodium intake...
February 7, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28167968/prevalence-response-to-cysticidal-therapy-and-risk-factors-for-persistent-seizure-in-indian-children-with-neurocysticercosis
#4
Animesh Kumar, Anirban Mandal, Sheela Sinha, Amitabh Singh, Rashmi Ranjan Das
Background. Neurocysticercosis (NCC) is the commonest cause of childhood acquired epilepsy in developing countries. The use of cysticidal therapy in NCC, except "single lesion NCC," is still debated in view of its doubtful usefulness and potential adverse effects. Methods. Children presenting with first episode of seizure or acute focal neurological deficit without fever were screened for NCC and received appropriate therapy (followup done for 1 year to look for the response and side effects). Results. The prevalence of NCC was 4...
2017: International Journal of Pediatrics
https://www.readbyqxmd.com/read/28166833/slc12a3-variants-modulate-ldl-cholesterol-levels-in-the-mongolian-population
#5
Caiyan An, Kejin Zhang, Xiulan Su
BACKGROUND: Abnormalities in lipid metabolism are crucial factors in the pathogenesis of cardiovascular disease (CVD). Variants of many genes have been verified to confer risk for lipid metabolism abnormalities. However, the relationship between genetic variants of the NCC-encoding SLC12A3 gene and lipid metabolism in the Mongolian population remains unclear. In the present study, we aimed to elucidate the effects of SLC12A3 variants on Mongolian lipid metabolism, including total cholesterol (TCHO), triglycerides (TG), low-density lipoprotein cholesterol (LDL-c), and high-density lipoprotein cholesterol (HDL-c)...
February 6, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28153736/proteogenomic-analysis-of-ncc-s1m-a-gastric-cancer-stem-cell-like-cell-line-that-responds-to-anti-pd-1
#6
Jun Won Park, Hyejin Um, Hanna Yang, Woori Ko, Dae-Yong Kim, Hark Kyun Kim
To elucidate signaling pathways that regulate gastric cancer stem cell (CSC) phenotypes and immune checkpoint, we performed a proteogenomic analysis of NCC-S1M, which is a gastric cancer cell line with CSC-like characteristics and is the only syngeneic gastric tumor cell line transplant model created in the scientific community. We found that the NCC-S1M allograft was responsive to anti-PD-1 treatment, and overexpressed Cd274 encoding PD-L1. PD-L1 was transcriptionally activated by loss of the TGF-β signaling...
January 30, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28139530/neurocysticercosis-diagnostic-problems-current-therapeutic-strategies
#7
REVIEW
Vedantam Rajshekhar
Neurocysticercosis (NCC) is the most common single cause of seizures/epilepsy in India and several other endemic countries throughout the world. It is also the most common parasitic disease of the brain caused by the cestode Taenia solium or pork tapeworm. The diagnosis of NCC and the tapeworm carrier (taeniasis) can be relatively inaccessible and expensive for most of the patients. In spite of the introduction of several new immunological tests, neuroimaging remains the main diagnostic test for NCC. The treatment of NCC is also mired in controversy although, there is emerging evidence that albendazole (a cysticidal drug) may be beneficial for patients by reducing the number of seizures and hastening the resolution of live cysts...
September 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28138124/comparative-analysis-of-renin-angiotensin-system-ras-related-gene-expression-between-hypertensive-and-normotensive-rats
#8
Chad R Williamson, Sandhya Khurana, Phong Nguyen, Collin J Byrne, T C Tai
BACKGROUND The renal renin-angiotensin system (RAS) is physiologically important for blood pressure regulation. Altered regulation of RAS-related genes has been observed in an animal model of hypertension (spontaneously hypertensive rats - SHRs). The current understanding of certain RAS-related gene expression differences between Wistar-Kyoto rats (WKYs) and SHRs is either limited or has not been compared. The purpose of this study was to compare the regulation of key RAS-related genes in the kidneys of adult WKYs and SHRs...
January 31, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28126056/alterations-of-gray-and-white-matter-morphology-in-obsessive-compulsive-disorder
#9
Oscar F Gonçalves, Sonia Sousa, Sandra Carvalho, Jorge Leite, Ana Ganho, Ana Fernandes-Gonçalves, Fernando Pocinho, Angel Carracedo, Adriana Sampaio
BACKGROUND: While the ethio-pathogenesis of Obsessive-Compulsive disorder (OCD) remains unknown, there is increased evidence of widespread structural alterations in both white and gray matter in OCD patients that include, but are not restricted, to abnormalities in cortico-striatal-thalamo-cortical (CSTC) regions. The objective of this study was to test the existence of structural alterations in both white and gray matter in a sample of OCD patients when compared with a group of non-clinical matched controls (NCC), using voxel-based morphometry (VBM)...
2017: Psicothema
https://www.readbyqxmd.com/read/28109039/nkx2-5-regulates-endothelin-converting-enzyme-1-during-pharyngeal-arch-patterning
#10
Jennifer M Iklé, Andre L P Tavares, Marisol King, Hailei Ding, Sophie Colombo, Beth A Firulli, Anthony B Fiulli, Kimara L Targoff, Deborah Yelon, David E Clouthier
In gnathostomes, dorsoventral (D-V) patterning of neural crest cells (NCC) within the pharyngeal arches is crucial for the development of hinged jaws. One of the key signals that mediates this process is Endothelin-1 (EDN1). Loss of EDN1 binding to the Endothelin-A receptor (EDNRA) results in loss of EDNRA signaling and subsequent facial birth defects in humans, mice and zebrafish. A rate-limiting step in this crucial signaling pathway is the conversion of immature EDN1 into a mature active form by Endothelin converting enzyme-1 (ECE1)...
January 20, 2017: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/28108829/vascular-contractile-reactivity-in-hypotension-due-to-reduced-renal-reabsorption-of-na-and-restricted-dietary-na
#11
Saeed Alshahrani, Robert M Rapoport, Manoocher Soleimani
Reduced renal Na(+) reabsorption along with restricted dietary Na(+) depletes intravascular plasma volume which can then result in hypotension. Whether hypotension occurs and the magnitude of hypotension depends in part on compensatory angiotensin II-mediated increased vascular resistance. We investigated whether the ability of vascular resistance to mitigate the hypotension was compromised by decreased contractile reactivity. In vitro reactivity was investigated in aorta from mouse models of reduced renal Na(+) reabsorption and restricted dietary Na(+) associated with considerable hypotension and renin-angiotensin system activation: (1) the Na(+)-Cl(-)-Co-transporter (NCC) knockout (KO) with Na(+) restricted diet (0...
March 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28099935/frequent-amplification-of-receptor-tyrosine-kinase-genes-in-welldifferentiated-dedifferentiated-liposarcoma
#12
Naofumi Asano, Akihiko Yoshida, Sachiyo Mitani, Eisuke Kobayashi, Bunsyo Shiotani, Motokiyo Komiyama, Hiroyuki Fujimoto, Hirokazu Chuman, Hideo Morioka, Morio Matsumoto, Masaya Nakamura, Takashi Kubo, Mamoru Kato, Takashi Kohno, Akira Kawai, Tadashi Kondo, Hitoshi Ichikawa
Well-differentiated liposarcoma (WDLPS) and dedifferentiated liposarcoma (DDLPS) are closely related tumors commonly characterized by MDM2/CDK4 gene amplification, and lack clinically effective treatment options when inoperable. To identify novel therapeutic targets, we performed targeted genomic sequencing analysis of 19 WDLPS and 37 DDLPS tumor samples using a panel of 104 cancer-related genes (NCC oncopanel v3) developed specifically for genomic testing to select suitable molecular targeted therapies. The results of this analysis indicated that these sarcomas had very few gene mutations and a high frequency of amplifications of not only MDM2 and CDK4 but also other genes...
January 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28096417/phosphorylation-by-pkc-and-pka-regulate-the-kinase-activity-and-downstream-signaling-of-wnk4
#13
Maria Castañeda-Bueno, Juan Pablo Arroyo, Junhui Zhang, Jeremy Puthumana, Orlando Yarborough, Shigeru Shibata, Lorena Rojas-Vega, Gerardo Gamba, Jesse Rinehart, Richard P Lifton
With-no-lysine kinase 4 (WNK4) regulates electrolyte homeostasis and blood pressure. WNK4 phosphorylates the kinases SPAK (Ste20-related proline alanine-rich kinase) and OSR1 (oxidative stress responsive kinase), which then phosphorylate and activate the renal Na-Cl cotransporter (NCC). WNK4 levels are regulated by binding to Kelch-like 3, targeting WNK4 for ubiquitylation and degradation. Phosphorylation of Kelch-like 3 by PKC or PKA downstream of AngII or vasopressin signaling, respectively, abrogates binding...
January 31, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28094030/glucocorticoid-induced-leucine-zipper-protein-regulates-sodium-and-potassium-balance-in-the-distal-nephron
#14
Priyanka Rashmi, GianLuca Colussi, Michael Ng, Xinhao Wu, Atif Kidwai, David Pearce
Glucocorticoid induced leucine zipper protein (GILZ) is an aldosterone-regulated protein that controls sodium transport in cultured kidney epithelial cells. Mice lacking GILZ have been reported previously to have electrolyte abnormalities. However, the mechanistic basis has not been explored. Here we provide evidence supporting a role for GILZ in modulating the balance of renal sodium and potassium excretion by regulating the sodium-chloride cotransporter (NCC) activity in the distal nephron. Gilz(-/-) mice have a higher plasma potassium concentration and lower fractional excretion of potassium than wild type mice...
January 13, 2017: Kidney International
https://www.readbyqxmd.com/read/28077750/the-association-between-neurocysticercosis-and-hippocampal-atrophy-is-related-to-age
#15
Oscar H Del Brutto, Naoum P Issa, Perla Salgado, Victor J Del Brutto, Mauricio Zambrano, Julio Lama, Héctor H García
Neurocysticercosis (NCC) has been associated with hippocampal atrophy, but the prevalence and pathogenic mechanisms implicated in this relationship are unknown. Using a population-based, case-control study design, residents in a rural village (Atahualpa) aged ≥ 40 years with calcified NCC were identified as cases and paired to NCC-free individuals (control subjects) matched by age, sex, and level of education. Cases and control subjects underwent magnetic resonance imaging for hippocampal rating according to the Scheltens' scale for medial temporal atrophy and were interviewed to identify those with a clinical seizure disorder...
January 11, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28074785/deformable-registration-of-ct-and-cone-beam-ct-with-local-intensity-matching
#16
Seyoun Park, William Plishker, Harry Quon, John Wong, Raj Shekhar, Junghoon Lee
Cone-beam CT (CBCT) is a widely used intra-operative imaging modality in image-guided radiotherapy and surgery. A short scan followed by a filtered-backprojection is typically used for CBCT reconstruction. While data on the mid-plane (plane of source-detector rotation) is complete, off-mid-planes undergo different information deficiency and the computed reconstructions are approximate. This causes different reconstruction artifacts at off-mid-planes depending on slice locations, and therefore impedes accurate registration between CT and CBCT...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28067240/cd8-t-cells-stimulate-na-cl-co-transporter-ncc-in-distal-convoluted-tubules-leading-to-salt-sensitive-hypertension
#17
Yunmeng Liu, Tonya M Rafferty, Sung W Rhee, Jessica S Webber, Li Song, Benjamin Ko, Robert S Hoover, Beixiang He, Shengyu Mu
Recent studies suggest a role for T lymphocytes in hypertension. However, whether T cells contribute to renal sodium retention and salt-sensitive hypertension is unknown. Here we demonstrate that T cells infiltrate into the kidney of salt-sensitive hypertensive animals. In particular, CD8(+) T cells directly contact the distal convoluted tubule (DCT) in the kidneys of DOCA-salt mice and CD8(+) T cell-injected mice, leading to up-regulation of the Na-Cl co-transporter NCC, p-NCC and the development of salt-sensitive hypertension...
January 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28066097/pharmacovigilance-programme-of-india-recent-developments-and-future-perspectives
#18
Vivekanandan Kalaiselvan, Prasad Thota, Gyanendra Nath Singh
Promoting safe use of medicines is a priority of Indian Pharmacopoeia Commission that functions as the National Coordination Center (NCC) for Pharmacovigilance Programme of India (PvPI). One hundred and seventy-nine adverse drug reactions (ADRs) monitoring centers currently report ADRs to NCC. Current India contribution to global safety database reaches 3% and the completeness score is 0.93 out of 1. NCC is taking several measures to enhance patient safety including capacity building for monitoring, surveillance, collaboration with national health programs and other organizations to increase ADR reporting and to ensure that PvPI is a vital knowledge database for Indian regulators...
November 2016: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/28065760/establishment-of-a-suite-of-assays-that-support-the-discovery-of-proteasome-stimulators
#19
Darci J Trader, Scott Simanski, Paige Dickson, Thomas Kodadek
BACKGROUND: The proteasome catalyzes the degradation of many mis-folded proteins, which are otherwise cytotoxic. There is interest in the discovery of proteasome agonists, but previous efforts to do so have been disappointing. METHODS: The cleavage of small fluorogenic peptides is used routinely as an assay to screen for proteasome modulators. We have developed follow-on assays that employ more physiologically relevant substrates. RESULTS: To demonstrate the efficacy of this workflow, the NIH Clinical Collection (NCC) was screened...
January 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28064834/use-of-hyaluronidase-in-the-comparison-between-manual-and-automated-hematology-analysis-with-the-advia-120-to-improve-analysis-of-feline-body-cavity-effusions
#20
Sei Ming Lee, Kenneth Williamson, William Weir, Lisa Hulme-Moir, Hayley Haining
Classification of body cavity effusions is an important step in the investigation and diagnosis of disease in cats. Feline inflammatory effusions are often highly proteinaceous and viscous, which can cause clumping of white cells and subsequently inaccurate nucleated cell counts (NCCs) using automated and manual methods. Microscopic assessment of cellularity can also be difficult given the variable thickness of smears and cell clumping, which skews white cell distribution. The ADVIA 120 uses 2 white cell-counting channels, the basophil/lobularity (WBC/baso) and differential/peroxidase channels, which can provide quite different results in highly viscous feline samples and often disagree with smear assessment of cellularity...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
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