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https://www.readbyqxmd.com/read/28818034/utility-of-hepatobiliary-scintigraphy-in-diagnosing-or-excluding-biliary-atresia-in-premature-neonates-and-full-term-infants-with-conjugated-hyperbilirubinemia-who-received-parenteral-nutrition
#1
Karine Barseghyan, Rangasamy Ramanathan, Thomas Chavez, Susan Harlan, Chuan-Hao Lin, Tania Mitsinikos, Claire McLean
PURPOSE: Hepatobiliary scintigraphy (HBS) is used to aid in the diagnosis of Biliary Atresia in full-term infants with conjugated hyperbilirubinemia. There is little information on the utility of the HBS in premature infants with conjugated hyperbilirubinemia and infants with parenteral nutrition associated cholestasis (PNAC). The purpose of this study is to assess the utility of HBS in differentiating Biliary Atresia and PNAC in premature neonates and full-term infants who received parenteral nutrition (PN)...
August 17, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28817187/second-line-treatment-in-patients-with-pancreatic-ductal-adenocarcinoma-a-meta-analysis
#2
Mohamad Bassam Sonbol, Belal Firwana, Zhen Wang, Diana Almader-Douglas, Mitesh J Borad, Issam Makhoul, Ramesh K Ramanathan, Daniel H Ahn, Tanios Bekaii-Saab
BACKGROUND: There are limited therapeutic options for treatment-refractory pancreatic ductal adenocarcinoma (PDAC), with a paucity of data to support the best option after progression on gemcitabine-based regimens. The authors performed a meta-analysis to determine the effectiveness of adding oxaliplatin (OX) or various irinotecan formulations to a fluoropyrimidine (FP) after first-line treatment progression in patients with PDAC. METHODS: Different databases, including PubMed, EMBASE, and Cochrane, were searched to identify randomized controlled trials comparing FP monotherapy versus FP combination therapy that included either oxaliplatin (FPOX) or various irinotecan formulations (FPIRI) in patients with PDAC who progressed after first-line treatment...
August 17, 2017: Cancer
https://www.readbyqxmd.com/read/28813620/transitioning-from-paper-to-digital-state-statutory-and-regulatory-frameworks-for-health-information-technology
#3
Cason Schmit, Gregory Sunshine, Dawn Pepin, Tara Ramanathan, Akshara Menon, Matthew Penn
OBJECTIVES: In all health system sectors, electronic health information (EHI) is created, used, released, and reused. We examined states' efforts to address EHI uses in law to provide an understanding of the EHI legal environment. METHODS: Attorney researchers used WestlawNext to search for EHI-related statutes and regulations of the US states, US territories, and the District of Columbia in effect as of January 2014. The researchers independently catalogued provisions by the EHI use described in the law...
January 1, 2017: Public Health Reports
https://www.readbyqxmd.com/read/28808316/habituation-based-synaptic-plasticity-and-organismic-learning-in-a-quantum-perovskite
#4
Fan Zuo, Priyadarshini Panda, Michele Kotiuga, Jiarui Li, Mingu Kang, Claudio Mazzoli, Hua Zhou, Andi Barbour, Stuart Wilkins, Badri Narayanan, Mathew Cherukara, Zhen Zhang, Subramanian K R S Sankaranarayanan, Riccardo Comin, Karin M Rabe, Kaushik Roy, Shriram Ramanathan
A central characteristic of living beings is the ability to learn from and respond to their environment leading to habit formation and decision making. This behavior, known as habituation, is universal among all forms of life with a central nervous system, and is also observed in single-cell organisms that do not possess a brain. Here, we report the discovery of habituation-based plasticity utilizing a perovskite quantum system by dynamical modulation of electron localization. Microscopic mechanisms and pathways that enable this organismic collective charge-lattice interaction are elucidated by first-principles theory, synchrotron investigations, ab initio molecular dynamics simulations, and in situ environmental breathing studies...
August 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28802690/nanoparticle-releasing-nanofiber-composites-for-enhanced-in%C3%A2-vivo-vaginal-retention
#5
Emily A Krogstad, Renuka Ramanathan, Christina Nhan, John C Kraft, Anna K Blakney, Shijie Cao, Rodney J Y Ho, Kim A Woodrow
Current approaches for topical vaginal administration of nanoparticles result in poor retention and extensive leakage. To overcome these challenges, we developed a nanoparticle-releasing nanofiber delivery platform and evaluated its ability to improve nanoparticle retention in a murine model. We individually tailored two components of this drug delivery system for optimal interaction with mucus, designing (1) mucoadhesive fibers for better retention in the vaginal tract, and (2) PEGylated nanoparticles that diffuse quickly through mucus...
August 1, 2017: Biomaterials
https://www.readbyqxmd.com/read/28797697/changes-in-inflammatory-endometrial-cancer-risk-biomarkers-in-individuals-undergoing-surgical-weight-loss
#6
Faina Linkov, Sharon L Goughnour, Tianzhou Ma, Zhongying Xu, Robert P Edwards, Anna E Lokshin, Ramesh C Ramanathan, Giselle G Hamad, Carol McCloskey, Dana H Bovbjerg
OBJECTIVE: Obesity has been strongly linked to endometrial cancer (EC) risk. A number of potential EC risk biomarkers have been proposed, including heightened pro-inflammatory cytokines and adipokines. To evaluate if bariatric surgery can serve as a means for altering levels of such EC risk biomarkers, we investigated changes in these biomarkers after weight loss. METHODS: Blood samples were collected pre-operatively and 6months post-operatively in 107 female bariatric surgery patients aged 18-72years...
August 7, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28797043/next-generation-sequencing-reveals-the-antibiotic-resistant-variants-in-the-genome-of-pseudomonas-aeruginosa
#7
Babu Ramanathan, Hassan Mahmood Jindal, Cheng Foh Le, Ranganath Gudimella, Arif Anwar, Rozaimi Razali, Johan Poole-Johnson, Rishya Manikam, Shamala Devi Sekaran
Rapid progress in next generation sequencing and allied computational tools have aided in identification of single nucleotide variants in genomes of several organisms. In the present study, we have investigated single nucleotide polymorphism (SNP) in ten multi-antibiotic resistant Pseudomonas aeruginosa clinical isolates. All the draft genomes were submitted to Rapid Annotations using Subsystems Technology (RAST) web server and the predicted protein sequences were used for comparison. Non-synonymous single nucleotide polymorphism (nsSNP) found in the clinical isolates compared to the reference genome (PAO1), and the comparison of nsSNPs between antibiotic resistant and susceptible clinical isolates revealed insights into the genome variation...
2017: PloS One
https://www.readbyqxmd.com/read/28796497/effects-of-muscle-specific-oxidative-stress-on-cytochrome-c-release-and-oxidation-reduction-potential-properties
#8
Yiling Ke, Rachel M Mitacek, Anupam Abraham, Gretchen G Mafi, Deborah L VanOverbeke, Udaya DeSilva, Ranjith Ramanathan
Mitochondria play a significant role in beef color. However, the role of oxidative stress in cytochrome c release and mitochondrial degradation is not clear. The objective was to determine the effects of display time on cytochrome c content and oxidation-reduction potential (ORP) of beef longissimus lumborum (LL) and psoas major (PM) muscles. PM discolored by day 3 compared with LL. On day 0, mitochondrial content and mitochondrial oxygen consumption were greater in PM than LL. However, mitochondrial content and oxygen consumption were lower (P < 0...
August 10, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28775288/a-polypeptide-from-the-junction-region-sequence-of-ews-fli1-inhibits-ewing-s-sarcoma-cells-interacts-with-the-ews-fli1-and-partner-proteins
#9
Krishna Priya Thangaretnam, Gopal Gopisetty, Priya Ramanathan, Thangarajan Rajkumar
The EWS-FLI1 chimeric protein uniquely expressed in Ewing's sarcoma has an obligate role in its aetiology. In our previous report we showed that ectopic expression of the DNA sequences form the junction region (a.a 251-280) can inhibit Ewing's sarcoma cell growth. In the present report, we introduced a peptide (TAT/NLS/EWS-PEP) comprising of thirty amino acids spanning the junction in conjunction with HIV-1-trans-activating (TAT) and nuclear localization signal sequence (NLS). Peptide uptake and localization studies revealed presence of peptide in ~99% of transduced cells and in the nucleus...
August 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28774338/-18-f-fdg-pet-ct-response-in-a-phase-1-2-trial-of-nab-paclitaxel-plus-gemcitabine-for-advanced-pancreatic-cancer
#10
Ronald L Korn, Daniel D Von Hoff, Mitesh J Borad, Markus F Renschler, Desmond McGovern, R Curtis Bay, Ramesh K Ramanathan
BACKGROUND: Positron emission tomography (PET) is poised to become a useful imaging modality in staging and evaluating therapeutic responses in patients with metastatic pancreatic cancer (mPC). This analysis from a phase 1/2 study examined the utility of early PET imaging in patients with mPC treated with nab-paclitaxel plus gemcitabine. METHODS: Tumors were measured by [(18)F]2-fluoro-2-deoxyglucose PET/computed tomography (CT) in patients who received nab-paclitaxel 100 (n = 13), 125 (n = 38), or 150 (n = 1) mg/m(2) plus gemcitabine 1000 mg/m(2) on days 1, 8, and 15 of a 28-day cycle...
August 3, 2017: Cancer Imaging: the Official Publication of the International Cancer Imaging Society
https://www.readbyqxmd.com/read/28768819/rabbit-aneurysm-models-mimic-histologic-wall-types-identified-in-human-intracranial-aneurysms
#11
Shunli Wang, Daying Dai, Praveen Kolumam Parameswaran, Ramanathan Kadirvel, Yong-Hong Ding, Anne M Robertson, David F Kallmes
BACKGROUND: Semiquantitative scales correlate histopathologic findings in the walls of human aneurysms with rupture status. OBJECTIVE: To apply a semiquantitative scale to the rabbit elastase-induced aneurysm model to determine whether rabbit histologic types mimic the full range of histologic subtypes of humans. MATERIALS AND METHODS: Twenty-seven elastase-induced female rabbit aneurysms were studied, harvested at 2 weeks (n=5) and 12 weeks (n=22)...
August 2, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28768446/comparison-of-two-doses-of-intravenous-temsirolimus-in-patients-with-relapsed-refractory-mantle-cell-lymphoma
#12
Wojciech Jurczak, Sundra Ramanathan, Pratyush Giri, Alessandra Romano, Heidi Mocikova, Jill Clancy, Mariajose Lechuga, Michelle Casey, Joseph Boni, Agnieszka Giza, Georg Hess
Temsirolimus 175 mg once-weekly for 3 weeks, followed by 75 mg once-weekly intravenously dosed (175/75 mg) is approved in the European Union for treatment of relapsed/refractory mantle cell lymphoma (MCL). A phase IV study explored whether similar efficacy, but improved safety could be achieved with 75 mg without 175 mg loading doses (ClinicaTrials.gov: NCT01180049). Patients with relapsed/refractory MCL were randomized to once-weekly temsirolimus 175/75 mg (n = 47) or 75 mg (n = 42). Treatment continued until objective disease progression...
August 3, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28759393/chorioamnionitis-and-management-of-asymptomatic-infants-%C3%A2-35-weeks-without-empiric-antibiotics
#13
Amanda I Jan, Rangasamy Ramanathan, Rowena G Cayabyab
BACKGROUND AND OBJECTIVE: Management of asymptomatic infants ≥35 weeks' gestation born to mothers with chorioamnionitis remains controversial, with many clinicians considering the need for changes to the current guidelines. The study objective was to evaluate the outcomes of asymptomatic chorioamnionitis-exposed neonates without the use of immediate empirical antibiotics. METHODS: A retrospective data review was conducted from May 2008 to December 2014, including asymptomatic infants ≥35 weeks' gestation with a maternal diagnosis of clinical chorioamnionitis...
July 2017: Pediatrics
https://www.readbyqxmd.com/read/28757136/iminoenamine-based-novel-androgen-receptor-antagonist-exhibited-anti-prostate-cancer-activity-in-androgen-independent-prostate-cancer-cells-through-inhibition-of-akt-pathway
#14
S Divakar, K Saravanan, P Karthikeyan, R Elancheran, S Kabilan, K K Balasubramanian, Rajlakshmi Devi, J Kotoky, M Ramanathan
Treatment by androgen receptor (AR) antagonists is one of the regimens for prostate cancer. The prolonged treatment with AR antagonist leads to the expression of point mutation in the ligand binding domain of the AR. This point mutation causes resistance to AR antagonist by converting them into an agonist. The T887A mutated AR was frequently expressed in androgen independent prostate cancer (AIPC) patients. Through literature survey and molecular modelling, we have identified a novel AR antagonist having a bulky β-iminoenamine BF2 complex scaffold...
July 27, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28757086/multidrug-resistant-acinetobacter-risk-factors-and-outcomes-in-veterans-with-spinal-cord-injuries-and-disorders
#15
Swetha Ramanathan, Katie J Suda, Margaret A Fitzpatrick, Linda Poggensee, Sherri L LaVela, Stephen P Burns, Charlesnika T Evans
BACKGROUND: Multidrug-resistant (MDR) Acinetobacter is a growing concern and has been identified as a serious threat by the Centers for Disease Control and Prevention. However, there is little information on MDR Acinetobacter in individuals with spinal cord injuries and disorders (SCI/Ds). Therefore, the objective of this study was to identify risk factors for, and assess outcomes of, MDR Acinetobacter in veterans with SCI/Ds. METHODS: This was a retrospective cohort study from January 1, 2012-December 31, 2013, using national Veterans Affairs medical encounter and microbiology data...
July 27, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28749484/communication-related-allegations-against-physicians-caring-for-premature-infants
#16
J Nguyen, H Muniraman, M Cascione, R Ramanathan
OBJECTIVE: Maternal-fetal medicine physicians (MFMp) and neonatal-perinatal medicine physicians (NPMp) caring for premature infants and their families are exposed to significant risk for malpractice actions. Effective communication practices have been implicated to decrease litigious intentions but the extent of miscommunication as a cause of legal action is essentially unknown in this population. Analysis of communication-related allegations (CRAs) may help toward improving patient care and physician-patient relationships as well as decrease litigation risks...
July 27, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28726132/phase-i-dose-escalation-study-of-nms-1286937-an-orally-available-polo-like-kinase-1-inhibitor-in-patients-with-advanced-or-metastatic-solid-tumors
#17
Glen J Weiss, Gayle Jameson, Daniel D Von Hoff, Barbara Valsasina, Cristina Davite, Claudia Di Giulio, Francesco Fiorentini, Rachele Alzani, Patrizia Carpinelli, Alessandro Di Sanzo, Arturo Galvani, Antonella Isacchi, Ramesh K Ramanathan
Background Pharmacological inhibition of polo-like kinase 1 (PLK1) represents a new approach for the treatment of solid tumors. This study was aimed at determining the first cycle dose-limiting toxicities (DLTs) and related maximum tolerated dose (MTD) of NMS-1286937, a selective ATP-competitive PLK1-specific inhibitor. Secondary objectives included evaluation of its safety and pharmacokinetic (PK) profile in plasma, its antitumor activity, and its ability to modulate intracellular targets in biopsied tissue...
July 20, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28722409/conformational-landscape-of-tri-n-butyl-phosphate-matrix-isolation-infrared-spectroscopy-and-systematic-computational-analysis
#18
N Ramanathan, K Sundararajan, K S Viswanathan
The conformations of tri-n-butyl phosphate (TBP) were studied using matrix isolation infrared spectroscopy and density functional theory (DFT) calculations. TBP was trapped in a N2 matrix using both effusive and supersonic sources, and its infrared spectra were recorded. The computational exploration of TBP is a very demanding problem to confront, due to the presence of a large multitude of conformations in TBP. To simplify the problem, computations were done on model compounds, dimethyl butyl phosphate (DMBP) and dibutyl methyl phosphate (DBMP), to systematically arrive at the conformations of TBP that are expected to contribute to its chemistry at room temperature...
August 3, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28720843/clinical-study-of-genomic-drivers-in-pancreatic-ductal-adenocarcinoma
#19
Michael T Barrett, Ray Deiotte, Elizabeth Lenkiewicz, Smriti Malasi, Tara Holley, Lisa Evers, Richard G Posner, Timothy Jones, Haiyong Han, Mark Sausen, Victor E Velculescu, Jeffrey Drebin, Peter O'Dwyer, Gayle Jameson, Ramesh K Ramanathan, Daniel D Von Hoff
BACKGROUND: Pancreatic ductal adenocarcinoma (PDA) is a lethal cancer with complex genomes and dense fibrotic stroma. This study was designed to identify clinically relevant somatic aberrations in pancreatic cancer genomes of patients with primary and metastatic disease enrolled and treated in two clinical trials. METHODS: Tumour nuclei were flow sorted prior to whole genome copy number variant (CNV) analysis. Targeted or whole exome sequencing was performed on most samples...
August 8, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28717536/safety-and-efficacy-of-bipolar-energy-for-transurethral-resection-of-bladder-tumours-a-prospective-quasi-randomized-study
#20
Vasudevan Thirugnanasambandam, Jeyaraman Ramanathan
OBJECTIVE: The primary aim of the study was to evaluate the safety and efficacy of bipolar energy in resecting bladder tumors. MATERIAL AND METHODS: The study was done between March 2012 and February 2013. This is a prospective quasi-randomized study evaluating the safety and efficacy of bipolar energy in transurethral resection of bladder tumours (TURBT). Institutional Ethics Committee approval was obtained. Informed consent was taken from all patients. Patients were randomized into two groups of 50 each to undergo either monopolar TURBT or bipolar TURBT using glycine and saline irrigation solutions, respectively...
June 2017: Turkish Journal of Urology
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