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https://www.readbyqxmd.com/read/28550425/cpg-oligonucleotide-mediated-co-stimulation-of-mouse-invariant-natural-killer-t-cells-negatively-regulates-their-activation-status
#1
Raveendra R Kulkarni, Alexander Ian Villanueva, Leah R Read, Jennifer T Brisbin, Siddhartha Kumar Bhaumik, Jonathan LaMarre, Kaja Murali-Krishna, Shayan Sharif
Invariant natural killer T (iNKT) cells play important roles in antimicrobial defense and immune-regulation. We have previously shown that iNKT cells express certain toll-like receptors (TLR), and that TLR co-stimulation of iNKT cells in the presence of suboptimal concentrations of T cell receptor (TCR) agonists enhances cellular activation. In the present study, we investigated the regulatory effects of CpG oligonucleotides in mouse primary hepatic and splenic iNKT cells and in DN32.D3 iNKT cells. We show that CpG treatment of iNKT cells in the presence of higher concentrations of TCR agonists (α-GalCer or anti-CD3 mAb) results in the up-regulation of TLR9 in iNKT cells with a concurrent reduction in their cellular activation, as assessed by their production of IL-2, IL-4 and IFN-γ compared with controls...
May 27, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28548615/social-media-networking-in-pediatric-hydrocephalus-a-point-prevalence-analysis-of-utilization
#2
Ghassan Awad Elkarim, Naif M Alotaibi, Nardin Samuel, Shelly Wang, George M Ibrahim, Aria Fallah, Alexander G Weil, Abhaya V Kulkarni
OBJECTIVE A recent survey has shown that caregivers of children with shunt-treated hydrocephalus frequently use social media networks for support and information gathering. The objective of this study is to describe and assess social media utilization among users interested in hydrocephalus. METHODS Publicly accessible accounts and videos dedicated to the topic of hydrocephalus were comprehensively searched across 3 social media platforms (Facebook, Twitter, and YouTube) throughout March 2016. Summary statistics were calculated on standard metrics of social media popularity...
May 26, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28548282/estimating-the-effect-of-immortal-time-bias-in-urologic-research-a-case-example-of-testosterone-replacement-therapy
#3
Christopher J D Wallis, Refik Saskin, Steven A Narod, Calvin Law, Girish S Kulkarni, Arun Seth, Robert K Nam
OBJECTIVE: To quantify the effect of immortal-time bias in an observational study examining the effect of cumulative testosterone exposure on mortality. SUBJECTS AND METHODS: We used a population-based matched cohort study of men aged 66 and older newly treated with testosterone replacement therapy and matched-controls from 2007-2012 in Ontario, Canada to quantify the effects of immortal-time bias. We used generalized estimating equations to determine the association between cumulative testosterone replacement therapy exposure and mortality...
May 26, 2017: BJU International
https://www.readbyqxmd.com/read/28541048/monoanionic-bis-pyrazolyl-methylborate-ph3b-ch-3-5-ch3-2pz-2-as-a-supporting-ligand-for-copper-i-ethylene-cis-2-butene-and-carbonyl-complexes
#4
Shawn G Ridlen, Naveen V Kulkarni, H V Rasika Dias
The monoanionic bidentate ligand [(Ph3B)CH(3,5-(CH3)2Pz)2)](-) has been prepared from lithium bis(pyrazolyl)methanide and triphenylborane. This useful new ligand is closely related to the well-established bis(pyrazolyl)borate and bis(pyrazolyl)methane ligands but has key differences to both analogues as well. The ethylene, cis-2-butene, and carbon monoxide adducts [(Ph3B)CH(3,5-(CH3)2Pz)2]Cu(L) (where L = C2H4, cis-CH3HC═CHCH3, and CO) have been prepared from [(Ph3B)CH(3,5-(CH3)2Pz)2)]Li(THF), copper(I) triflate, and the corresponding coligand...
May 25, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28539463/braf-fusion-as-a-novel-mechanism-of-acquired-resistance-to-vemurafenib-in-braf-v600e-mutant-melanoma
#5
Atul Kulkarni, Husam Al-Hraishawi, Srilatha Simhadri, Kim M Hirshfield, Suzie Chen, Sharon R Pine, Chandrika Jeyamohan, Levi Sokol, Siraj M Ali, Man Lung Teo, Eileen White, Lorna Rodriguez-Rodriguez, Janice M Mehnert, Shridar Ganesan
Many patients with BRAF (V)(600E) mutant melanoma treated with BRAF inhibitors experience a rapid response, but ultimately develop resistance. Insight into the mechanism of resistance is critical for development of more effective treatment strategies. <br /><br />Experimental Design: Comprehensive genomic profiling of serial biopsies was performed in a patient with a BRAF(V600E) mutant metastatic melanoma who developed resistance to vemurafenib. An AGAP3-BRAF fusion gene, identified in the vemurafenib-resistant tumor, was expressed in BRAF(V600E) melanoma cell lines and its effect on drug sensitivity was evaluated...
May 24, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28537810/incidence-and-characteristics-of-venous-thrombotic-events-in-pediatric-cancer-patients-a-20-year-experience-in-the-maritimes-canada
#6
Zeina Asyyed, Tamara MacDonald, Carol Digout, Ketan Kulkarni
OBJECTIVE: Venous thrombotic events (VTE) are a well-recognized complication in pediatric cancer patients. Population-based data on the incidence and characteristics of VTE in all pediatric cancer patients are limited. This information is crucial to identify patients at high risk and design targeted interventions accordingly. The present study was designed to determine the incidence and characteristics of VTE in the pediatric oncology population. PARTICIPANTS: We conducted a retrospective, population-based, cohort study of patients treated in the Maritimes, Canada between 1995 and 2015...
May 24, 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/28536228/clostridium-difficile-extraintestinal-abscess-a-rare-complication
#7
Vamsi Krishna Kantamaneni, Krishna C Gurram, Abhijit Kulkarni
Extraintestinal Clostridium difficile is rare. A 74-year-old man with a history of ulcerative colitis presented after a fall. Trauma work-up showed liver cirrhosis. Two days later he developed abdominal pain, distension, diarrhoea and leucocytosis. Stool tested positive for C. difficile CT abdomen showed pancolitis with toxic megacolon. Total abdominal colectomy and ileostomy with a rectal stump was performed. He was discharged, but was readmitted with sepsis. CT abdomen showed a 10.4×7.2 cm fluid collection in the pelvis...
May 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28535440/management-of-ventilator-associated-pneumonia-with-a-new-antibiotic-adjuvant-entity-ceftriaxone-sulbactam-disodium-edetate-a-novel-approach-to-spare-carbapenems
#8
Prachee Sathe, Sagar Maddani, Shilpa Kulkarni, Nita Munshi
BACKGROUND: Ventilator associated pneumonia (VAP) is one of the most serious nosocomial infections in Intensive Care Unit (ICU). The aim of this study was to evaluate a new approach to spare the carbapenems for the management of patients diagnosed with VAP due to Acinetobacter baumannii (A. baumannii). METHOD: This retrospective study was conducted on VAP patients presenting for treatment at tertiary care centre between May 2014 and March 2016. The case sheets of patients who have been treated for VAP with meropenem, antibiotic adjuvant entity (AAE) and colistin were analysed...
May 15, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28535148/stochastic-gene-expression-conditioned-on-large-deviations
#9
Jordan M Horowitz, Rahul V Kulkarni
The intrinsic stochasticity of gene expression can give rise to large fluctuations and rare events that drive phenotypic variation in a population of genetically identical cells. Characterizing the fluctuations that give rise to such rare events motivates the analysis of large deviations in stochastic models of gene expression. Recent developments in non-equilibrium statistical mechanics have led to a framework for analyzing Markovian processes conditioned on rare events and for representing such processes by conditioning-free driven Markovian processes...
May 23, 2017: Physical Biology
https://www.readbyqxmd.com/read/28532058/interaction-of-nanostructured-tio2-biointerfaces-with-stem-cells-and-biofilm-forming-bacteria
#10
Mukta Kulkarni, Ita Junkar, Petr Humpolíček, Zdenka Capáková, Katarzyna Anna Radaszkiewicz, Nikola Mikušová, Jiří Pacherník, Marián Lehocký, Aleš Iglič, Markéta Hanáčková, Miran Mozetič
Nanostructured TiO2 nanotubes (NTs) of diameters from 15 to 100nm were fabricated by an electrochemical anodization process. Biofilm-positive strains of Bacillus cereus and Pseudomonas aeruginosa behaved similarly on all TiO2 NTs as well as on native titanium (Ti) foil. The adhesion and growth of mesenchymal stem cells (MSc), embryonic stem cells (ESc), and pure cardiomyocytes derived from ESc exhibited significant differences. MSc as well as ESc were, in contrast to cardiomyocytes, able to adhere, and grow on TiO2 NTs...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531788/association-of-dietary-factors-with-severity-of-coronary-artery-disease
#11
Namita Mahalle, M K Garg, S S Naik, M V Kulkarni
BACKGROUND: Cardiovascular disease has taken epidemic proportions during past decades. Cardiovascular risk factors contribute to progression of coronary lesions, worsening the patient's prognosis. This study was planned to analyze the association of dietary factors with severity of coronary artery disease (CAD) in Indian patients. METHODS: Three hundred patients with known coronary disease above the age of 25 years were included in this study. Blood samples were collected for biochemical markers...
October 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28530580/offgel-electrophoresis-and-tandem-mass-spectrometry-approach-compared-with-dna-based-pcr-method-for-authentication-of-meat-species-from-raw-and-cooked-ground-meat-mixtures-containing-cattle-meat-water-buffalo-meat-and-sheep-meat
#12
Basappa M Naveena, Deepak S Jagadeesh, A Jagadeesh Babu, T Madhava Rao, Veeranna Kamuni, S Vaithiyanathan, Vinayak V Kulkarni, Srikanth Rapole
The present study compared the accuracy of an OFFGEL electrophoresis and tandem mass spectrometry-based proteomic approach with a DNA-based method for meat species identification from raw and cooked ground meat mixes containing cattle, water buffalo and sheep meat. The proteomic approach involved the separation of myofibrillar proteins using OFFGEL electrophoresis, SDS-PAGE and protein identification by MALDI-TOF MS. Species-specific peptides derived from myosin light chain-1 and 2 were identified for authenticating buffalo meat spiked at a minimum 0...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28529427/squamous-cell-carcinoma-of-the-nail-bed-the-great-mimicker
#13
Swagata Arvind Tambe, Priyanka Deelip Patil, Dattatray Govind Saple, Ulhas Yashwant Kulkarni
No abstract text is available yet for this article.
January 2017: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/28526921/glp-1-signalling-compensates-for-impaired-insulin-signalling-in-regulating-beta-cell-proliferation-in-%C3%AE-irko-mice
#14
Dan Kawamori, Jun Shirakawa, Chong Wee Liew, Jiang Hu, Tomoaki Morioka, Alokesh Duttaroy, Bryan Burkey, Rohit N Kulkarni
AIMS/HYPOTHESIS: We aimed to investigate potential interactions between insulin and glucagon-like peptide (GLP)-1 signalling pathways in the regulation of beta cell-cycle dynamics in vivo, in the context of the therapeutic potential of GLP-1 to modulate impaired beta cell function. METHODS: Beta cell-specific insulin receptor knockout (βIRKO) mice, which exhibit beta cell dysfunction and an age-dependent decrease in beta cell mass, were treated with the dipeptidyl peptidase-4 inhibitor vildagliptin...
May 20, 2017: Diabetologia
https://www.readbyqxmd.com/read/28526137/cellular-and-molecular-mechanisms-of-autoimmunity-and-lupus-nephritis
#15
S K Devarapu, G Lorenz, O P Kulkarni, H-J Anders, S R Mulay
Autoimmunity involves immune responses directed against self, which are a result of defective self/foreign distinction of the immune system, leading to proliferation of self-reactive lymphocytes, and is characterized by systemic, as well as tissue-specific, inflammation. Numerous mechanisms operate to ensure the immune tolerance to self-antigens. However, monogenetic defects or genetic variants that weaken immune tolerance render susceptibility to the loss of immune tolerance, which is further triggered by environmental factors...
2017: International Review of Cell and Molecular Biology
https://www.readbyqxmd.com/read/28525987/genetic-correlation-of-the-plasma-lipidome-with-type-2-diabetes-prediabetes-and-insulin-resistance-in-mexican-american-families
#16
Hemant Kulkarni, Manju Mamtani, Gerard Wong, Jacquelyn M Weir, Christopher K Barlow, Thomas D Dyer, Laura Almasy, Michael C Mahaney, Anthony G Comuzzie, Ravindranath Duggirala, Peter J Meikle, John Blangero, Joanne E Curran
BACKGROUND: Differential plasma concentrations of circulating lipid species are associated with pathogenesis of type 2 diabetes (T2D). Whether the wide inter-individual variability in the plasma lipidome contributes to the genetic basis of T2D is unknown. Here, we investigated the potential overlap in the genetic basis of the plasma lipidome and T2D-related traits. RESULTS: We used plasma lipidomic data (1202 pedigreed individuals, 319 lipid species representing 23 lipid classes) from San Antonio Family Heart Study in Mexican Americans...
May 19, 2017: BMC Genetics
https://www.readbyqxmd.com/read/28525460/coexistent-superscan-and-lincoln-sign-on-bone-scintigraphy
#17
Mukta Kulkarni, Atul Soni, Shubhangi Shetkar, Momin Amer, Amruta Mulavekar, Prathamesh Joshi
A 70-year-old man underwent Tc-methylene diphosphonate scintigraphy for staging of adenocarcinoma prostate. Scintigraphy revealed diffuse increased tracer uptake in skeletal system along with faint renal visualization, a pattern compatible with metastatic superscan. The scintigraphy also revealed increased radiotracer uptake in the body of the mandible-Lincoln sign or black beard sign. Radiological imaging revealed sclerotic lesions throughout the skeleton including the mandible, confirming widespread skeletal metastases...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28515595/percutaneous-transhepatic-techniques-for-management-of-biliary-anastomotic-strictures-in-living-donor-liver-transplant-recipients
#18
Chinmay B Kulkarni, Nirmal K Prabhu, Nazar P Kader, Ramiah Rajeshkannan, Sreekumar K Pullara, Srikanth Moorthy
AIM: To retrospectively analyze the percutaneous transhepatic techniques and their outcome in the management of biliary strictures in living donor liver transplant (LDLT) recipients. MATERIALS AND METHODS: We retrieved the hospital records of 400 LDLT recipients between 2007 and 2015 and identified 45 patients with biliary strictures. Among them, 17 patients (37.8%) (Male: female = 13:4; mean age, 36.1 ± 17.5 years) treated by various percutaneous transhepatic biliary techniques alone or in combination with endoscopic retrograde cholangiopancreatography (ERCP) were included in the study...
January 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28515568/gender-differences-in-persistent-delusional-disorder
#19
Karishma R Kulkarni, Rashmi Arasappa, M Krishna Prasad, Amit Zutshi, Prabhat K Chand, Pratima Murthy, Kesavan Muralidharan
No abstract text is available yet for this article.
March 2017: Indian Journal of Psychological Medicine
https://www.readbyqxmd.com/read/28515546/use-of-jonkman-et-al-score-for-visual-quantification-of-electroencephalography-as-a-tool-to-assess-disease-severity-in-cortical-dementias
#20
R Kiran Kumar, Sadanandavalli Retnaswami Chandra, Girish B Kulkarni, Rose Dawn Bharath
OBJECTIVES: To study electroencephalography (EEG) changes in patients with cortical dementias (Alzheimer's disease [AD] and frontotemporal dementia (FTD). (1) To correlate EEG changes with clinical severity of dementia as assessed by rating scales. (2) To correlate global gray matter volume (GGMV) with EEG scores and clinical severity rating scales. PATIENTS AND METHODS: This is a prospective cross-sectional study involving patients fulfilling the criteria for Probable AD and FTD...
March 2017: Indian Journal of Psychological Medicine
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