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https://www.readbyqxmd.com/read/28099935/frequent-amplification-of-receptor-tyrosine-kinase-genes-in-welldifferentiated-dedifferentiated-liposarcoma
#1
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
#2
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 17, 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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
https://www.readbyqxmd.com/read/28060040/long-term-clinical-and-radiologic-outcome-of-500-children-with-parenchymal-neurocysticercosis
#10
Pratibha Singhi, Renu Suthar, Brijendra Deo, Prabhjot Malhi, N K Khandelwal
BACKGROUND: Our aim was to study long-term clinical and radiologic outcome of children with parenchymal neurocysticercosis (NCC) and its predictors. METHOD: 500 children with NCC registered in the pediatric NCC Clinic between January 1996 and December 2002 and followed to December 2009 were enrolled. Demographic details, clinical presentations and therapy received were recorded. Outcome was evaluated in terms of seizure recurrence and resolution of lesions on neuroimaging...
January 3, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28059108/4-3-%C3%AE-glucanotransferase-a-novel-reaction-specificity-in-glycoside-hydrolase-family-70-and-clan-gh-h
#11
Joana Gangoiti, Sander S van Leeuwen, Gerrit J Gerwig, Stéphane Duboux, Christina Vafiadi, Tjaard Pijning, Lubbert Dijkhuizen
Lactic acid bacteria possess a diversity of glucansucrase (GS) enzymes that belong to glycoside hydrolase family 70 (GH70) and convert sucrose into α-glucan polysaccharides with (α1 → 2)-, (α1 → 3)-, (α1 → 4)- and/or (α1 → 6)-glycosidic bonds. In recent years 3 novel subfamilies of GH70 enzymes, inactive on sucrose but using maltodextrins/starch as substrates, have been established (e.g. GtfB of Lactobacillus reuteri 121). Compared to the broad linkage specificity found in GSs, all GH70 starch-acting enzymes characterized so far possess 4,6-α-glucanotransferase activity, cleaving (α1 → 4)-linkages and synthesizing new (α1 → 6)-linkages...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28052988/potassium-sensing-by-renal-distal-tubules-requires-kir4-1
#12
Catherina A Cuevas, Xiao-Tong Su, Ming-Xiao Wang, Andrew S Terker, Dao-Hong Lin, James A McCormick, Chao-Ling Yang, David H Ellison, Wen-Hui Wang
The mammalian distal convoluted tubule (DCT) makes an important contribution to potassium homeostasis by modulating NaCl transport. The thiazide-sensitive Na(+)/Cl(-) cotransporter (NCC) is activated by low potassium intake and by hypokalemia. Coupled with suppression of aldosterone secretion, activation of NCC helps to retain potassium by increasing electroneutral NaCl reabsorption, therefore reducing Na(+)/K(+) exchange. Yet the mechanisms by which DCT cells sense plasma potassium concentration and transmit the information to the apical membrane are not clear...
January 4, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28048904/su-g-bra-02-development-of-a-learning-based-block-matching-algorithm-for-ultrasound-tracking-in-radiotherapy
#13
A Shepard, B Bednarz
PURPOSE: To develop an ultrasound learning-based tracking algorithm with the potential to provide real-time motion traces of anatomy-based fiducials that may aid in the effective delivery of external beam radiation. METHODS: The algorithm was developed in Matlab R2015a and consists of two main stages: reference frame selection, and localized block matching. Immediately following frame acquisition, a normalized cross-correlation (NCC) similarity metric is used to determine a reference frame most similar to the current frame from a series of training set images that were acquired during a pretreatment scan...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28017213/revised-diagnostic-criteria-for-neurocysticercosis
#14
REVIEW
O H Del Brutto, T E Nash, A C White, V Rajshekhar, P P Wilkins, G Singh, C M Vasquez, P Salgado, R H Gilman, H H Garcia
BACKGROUND: A unified set of criteria for neurocysticercosis (NCC) has helped to standardize its diagnosis in different settings. METHODS: Cysticercosis experts were convened to update current diagnostic criteria for NCC according to two principles: neuroimaging studies are essential for diagnosis, and all other information provides indirect evidence favoring the diagnosis. Recent diagnostic advances were incorporated to this revised set. RESULTS: This revised set is structured in absolute, neuroimaging and clinical/exposure criteria...
January 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28013026/nonsubsampled-rotated-complex-wavelet-transform-nsrcxwt-for-medical-image-fusion-related-to-clinical-aspects-in-neurocysticercosis
#15
Satishkumar S Chavan, Abhishek Mahajan, Sanjay N Talbar, Subhash Desai, Meenakshi Thakur, Anil D'cruz
Neurocysticercosis (NCC) is a parasite infection caused by the tapeworm Taenia solium in its larvae stage which affects the central nervous system of the human body (a definite host). It results in the formation of multiple lesions in the brain at different locations during its various stages. During diagnosis of such symptomatic patients, these lesions can be better visualized using a feature based fusion of Computed Tomography (CT) and Magnetic Resonance Imaging (MRI). This paper presents a novel approach to Multimodality Medical Image Fusion (MMIF) used for the analysis of the lesions for the diagnostic purpose and post treatment review of NCC...
December 18, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28012796/antigenic-fractions-from-taenia-crassiceps-metacestodes-obtained-by-hydrophobicity-for-the-immunodiagnosis-of-active-and-inactive-forms-of-neurocysticercosis-in-human-cerebrospinal-fluid-samples
#16
Gabriela B da Silva, Daniela S Nunes, José Eduardo N de Sousa, Maria do R F Gonçalves-Pires, Marcelo A Levenhagen, Julia M Costa-Cruz
This study aimed to evaluate the total extract of Taenia crassiceps metacestodes (TC) and its antigenic fractions obtained by Triton X-114 fractionation techniques, such as detergent (DC) and aqueous (AC), in the immunodiagnosis of human neurocysticercosis (NCC). Cerebrospinal fluid samples were divided into two groups: Group 1 (n=40), which was further divided into active (n=20) and inactive (n=20) NCC, and Group 2 (control group), which comprised 39 CSF samples from patients who had another neurological disorder, were suffering from other infectious diseases of the brain or had other parasitic infections...
December 21, 2016: Parasitology International
https://www.readbyqxmd.com/read/28003191/calcineurin-inhibitor-cyclosporine-a-activates-renal-na-k-cl-cotransporters-via-local-and-systemic-mechanisms
#17
Katharina Ilse Blankenstein, Aljona Borschewski, Robert Labes, Alexander Paliege, Christin Boldt, James A McCormick, David H Ellison, Michael Bader, Sebastian Bachmann, Kerim Mutig
Calcineurin dephosphorylates NFAT transcription factors, thereby facilitating T-cell mediated immune responses. Calcineurin inhibitors are instrumental for immunosuppression after organ transplantation, but may cause side effects including hypertension and electrolyte disorders. Kidneys were recently shown to display activation of the furosemide-sensitive Na-K-2Cl cotransporter (NKCC2) of the thick ascending limb and the thiazide-sensitive Na-Cl cotransporter (NCC) of the distal convoluted tubule upon calcineurin inhibition using cyclosporin A (CsA)...
December 21, 2016: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28003083/gitelman-syndrome-consensus-and-guidance-from-a-kidney-disease-improving-global-outcomes-kdigo-controversies-conference
#18
Anne Blanchard, Detlef Bockenhauer, Davide Bolignano, Lorenzo A Calò, Etienne Cosyns, Olivier Devuyst, David H Ellison, Fiona E Karet Frankl, Nine V A M Knoers, Martin Konrad, Shih-Hua Lin, Rosa Vargas-Poussou
Gitelman syndrome (GS) is a rare, salt-losing tubulopathy characterized by hypokalemic metabolic alkalosis with hypomagnesemia and hypocalciuria. The disease is recessively inherited, caused by inactivating mutations in the SLC12A3 gene that encodes the thiazide-sensitive sodium-chloride cotransporter (NCC). GS is usually detected during adolescence or adulthood, either fortuitously or in association with mild or nonspecific symptoms or both. The disease is characterized by high phenotypic variability and a significant reduction in the quality of life, and it may be associated with severe manifestations...
January 2017: Kidney International
https://www.readbyqxmd.com/read/27999688/percutaneous-coronary-intervention-for-the-anomalous-left-coronary-artery-originating-from-the-noncoronary-cusp
#19
Toshiki Kuno, Yohei Numasawa, Toshiyuki Takahsashi
Percutaneous coronary intervention (PCI) for anomalous left coronary artery (LCA) originating from the noncoronary cusp (NCC) is challenging, as it poses difficulties with the engagement of the guiding catheter and the establishment of backup support. This report examines the case of a 69-year-old woman with unstable angina of anomalous LCA origin. The computed tomography showed a diffuse plaque in the middle of the left anterior descending (LAD) artery and an anomalous LCA originating from the NCC. After successful engagement of a straightened Judkins-Left diagnostic catheter, the angiography revealed a diffuse plaque in the middle of the LAD artery...
2016: Case Reports in Cardiology
https://www.readbyqxmd.com/read/27992429/high-prevalence-of-asymptomatic-neurocysticercosis-in-an-endemic-rural-community-in-peru
#20
Luz M Moyano, Seth E O'Neal, Viterbo Ayvar, Guillermo Gonzalvez, Ricardo Gamboa, Percy Vilchez, Silvia Rodriguez, Joe Reistetter, Victor C W Tsang, Robert H Gilman, Armando E Gonzalez, Hector H Garcia
BACKGROUND: Neurocysticercosis is a common helminthic infection of the central nervous system and an important cause of adult-onset epilepsy in endemic countries. However, few studies have examined associations between neurologic symptoms, serology and radiographic findings on a community-level. METHODOLOGY: We conducted a population-based study of resident's ≥2 years old in a highly endemic village in Peru (pop. 454). We applied a 14 -question neurologic screening tool and evaluated serum for antibodies against Taenia solium cysticercosis using enzyme-linked immunoelectrotransfer blot (LLGP-EITB)...
December 2016: PLoS Neglected Tropical Diseases
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