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https://www.readbyqxmd.com/read/28535410/effect-of-enzyme-inhibition-on-perampanel-pharmacokinetics-why-study-design-matters
#1
Barry E Gidal, Rama Maganti, Antonio Laurenza, Haichen Yang, David A Verbel, Edgar Schuck, Jim Ferry
OBJECTIVES: Perampanel, a selective, noncompetitive AMPA receptor antagonist, is indicated as adjunctive therapy for the treatment of partial seizures with or without secondarily generalized seizures and primary generalized tonic-clonic seizures in patients with epilepsy aged 12years and older. In vitro studies and Phase I trials indicate that perampanel is metabolized almost exclusively by CYP3A, with an elimination half-life (t1/2) averaging approximately 105h. Understanding of pharmacokinetic (PK) interactions-enzyme inhibition or induction-and anticipating their occurrence are important for management of patients with epilepsy...
April 26, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28534937/the-inhibitory-effect-of-meg3-mir-214-aifm2-axis-on-the-growth-of-t-cell-lymphoblastic-lymphoma
#2
Fang-Yi Fan, Rui Deng, Hai Yi, Hao-Ping Sun, Yan Zeng, Guang-Cui He, Yi Su
T-cell lymphoblastic lymphoma (T-LBL) is an aggressive malignancy with poor prognosis and high recurrence rate. Long non-coding RNA (lncRNA)-MEG3 is an important tumor suppressor in various cancers. The present study investigated the potential role of maternally expressed gene 3 (MEG3) in the progression of T-LBL. Suppressed expression of MEG3 was detected in T-LBL tissues compared with adjacent histologically normal tissues. Down-regulated level of MEG3 was also found in three T-LBL cell lines (CCRF-CEM, Jurkat and SUP-T1) compared with human T-cell line H9...
May 17, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28534659/health-care-costs-among-men-with-favorable-risk-prostate-cancer-managed-with-observation-strategies-versus-immediate-treatment-in-an-integrated-health-care-system
#3
Furaha Kariburyo, Yuexi Wang, I-Ning Elaine Cheng, Lisa Wang, David Morgenstern, Igor Asner, Lin Xie, Eric Meadows, John Danella
OBJECTIVE: This study explored short-term health care costs of men managed with observation strategies (OBS) versus immediate treatment (IMT) for favorable risk prostate cancer (PCa) from Geisinger Health System, a single integrated health system in Pennsylvania, as evidence from the community setting is limited. METHODS: A retrospective cohort study was conducted using electronic health records from men aged ≥40 years diagnosed with favorable risk PCa (T1 or 2, PSA ≤15 ng/mL, Gleason ≤7 [3 + 4]) between January 2005 and October 2013...
May 23, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28534477/decoding-and-reprogramming-fungal-iterative-nonribosomal-peptide-synthetases
#4
Dayu Yu, Fuchao Xu, Shuwei Zhang, Jixun Zhan
Nonribosomal peptide synthetases (NRPSs) assemble a large group of structurally and functionally diverse natural products. While the iterative catalytic mechanism of bacterial NRPSs is known, it remains unclear how fungal NRPSs create products of desired length. Here we show that fungal iterative NRPSs adopt an alternate incorporation strategy. Beauvericin and bassianolide synthetases have the same C1-A1-T1-C2-A2-MT-T2a-T2b-C3 domain organization. During catalysis, C3 and C2 take turns to incorporate the two biosynthetic precursors into the growing depsipeptide chain that swings between T1 and T2a/T2b with C3 cyclizing the chain when it reaches the full length...
May 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28534170/-trends-in-participation-in-nonformal-education-in-the-second-half-of-life-increasing-educational-participation-in-retirement
#5
Maja Wiest, Madlain Hoffmann, Sarah Widany, Katrin Kaufmann
BACKGROUND: Research on nonformal education often focuses on participation within employment. Participation of workers decreases with age; however, recent studies show an increase in participation in nonformal education of older workers. It remains, however, unclear if this trend spills over to retirement. OBJECTIVE: In the context of social change processes, trends in nonformal educational participation are analyzed. The study addresses employment and retirement as opportunity structures and investigates their impact on educational participation in the second half of life...
May 22, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28534058/freezability-of-water-buffalo-spermatozoa-is-improved-with-the-addition-of-catalase-in-cryodiluent
#6
L Ali, S M Hassan Andrabi, H Ahmed, A A Hussain Shah
BACKGROUND: Catalase enzyme is usually distributed in mammalian seminal plasma, where it decomposes hydrogen peroxide into water and oxygen and enhances sperm survivability. OBJECTIVE: To evaluate the effect of catalase (0, 100, 200 or 300 IU/ml) added in tris-citric acid (TCA) based extender on motion characteristics, viability and DNA integrity of bubaline spermatozoa at post dilution (PD) and post thawing (PT) stages of cryopreservation. MATERIALS AND METHODS: Collection of semen was done in four Nili-Ravi bulls with an artificial vagina (42 degree C)...
March 2017: Cryo Letters
https://www.readbyqxmd.com/read/28533982/lid-opening-and-conformational-stability-of-t1-lipase-is-mediated-by-increasing-chain-length-polar-solvents
#7
Jonathan Maiangwa, Mohd Shukuri Mohamad Ali, Abu Bakar Salleh, Raja Noor Zaliha Raja Abd Rahman, Yahaya M Normi, Fairolniza Mohd Shariff, Thean Chor Leow
The dynamics and conformational landscape of proteins in organic solvents are events of potential interest in nonaqueous process catalysis. Conformational changes, folding transitions, and stability often correspond to structural rearrangements that alter contacts between solvent molecules and amino acid residues. However, in nonaqueous enzymology, organic solvents limit stability and further application of proteins. In the present study, molecular dynamics (MD) of a thermostable Geobacillus zalihae T1 lipase was performed in different chain length polar organic solvents (methanol, ethanol, propanol, butanol, and pentanol) and water mixture systems to a concentration of 50%...
2017: PeerJ
https://www.readbyqxmd.com/read/28533697/a-comparison-of-predictors-and-intensity-of-acute-postsurgical-pain-in-patients-undergoing-total-hip-and-knee-arthroplasty
#8
Patrícia R Pinto, Teresa McIntyre, Vera Araújo-Soares, Patrício Costa, Ramón Ferrero, Armando Almeida
BACKGROUND: Acute pain is an expected result after surgery. Nevertheless, when not appropriately controlled, acute pain has a very negative impact on individual clinical outcomes, impairing healing and recovery, and has clear consequences on health care system costs. Augmenting knowledge on predictors and potentially modifiable determinants of acute postsurgical pain can facilitate early identification of and intervention in patients at risk. However, only a few studies have examined and compared acute pain after total hip arthroplasty (THA) and total knee arthroplasty (TKA)...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28533683/new-standardized-nursing-cooperation-workflow-to-reduce-stroke-thrombolysis-delays-in-patients-with-acute-ischemic-stroke
#9
Yan Zhou, Zhuojun Xu, Jiali Liao, Fangming Feng, Lai Men, Li Xu, Yanan He, Gang Li
OBJECTIVE: We assessed the effectiveness of a new standardized nursing cooperation workflow in patients with acute ischemic stroke (AIS) to reduce stroke thrombolysis delays. PATIENTS AND METHODS: AIS patients receiving conventional thrombolysis treatment from March to September 2015 were included in the control group, referred to as T0. The intervention group, referred to as T1 group, consisted of AIS patients receiving a new standardized nursing cooperation workflow for intravenous thrombolysis (IVT) at the emergency department of Shanghai East Hospital (Shanghai, People's Republic of China) from October 2015 to March 2016...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28533670/diagnostic-value-of-gadobenate-dimeglumine-enhanced-hepatocyte-phase-magnetic-resonance-imaging-in-evaluating-hepatic-fibrosis-and-hepatitis
#10
Xiu-Mei Li, Zhu Chen, En-Hua Xiao, Quan-Liang Shang, Cong Ma
AIM: To evaluate the diagnostic value of gadobenate dimeglumine (Gd-BOPTA)-enhanced hepatocyte-phase magnetic resonance imaging (MRI) in evaluating hepatic fibrosis and hepatitis. METHODS: Hepatocyte-phase images of Gd-BOPTA-enhanced MRI were retrospectively evaluated in 76 patients with chronic liver disease. These patients were classified into five groups according to either the histopathological fibrosis stage (S0-S4) or the histopathological hepatitis grade (G0-G4)...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28533636/comparison-of-spect-ct-and-planar-lympho-scintigraphy-in-sentinel-node-biopsies-of-oral-cavity-squamous-cell-carcinomas
#11
Piyush Chandra, Sanket Dhake, Sneha Shah, Archi Agrawal, Nilendu Purandare, Venkatesh Rangarajan
INTRODUCTION: Evidence supporting the use of Sentinel node biopsy (SNB) for nodal staging of early oral squamous cell carcinomas (OSCC) appears to be very promising. Pre-operative lymphatic mapping using planar lymphoscinitigraphy (PL) with or without SPECT/CT in the SNB procedure is useful in sentinel node localization and for planning appropriate surgery. Recently, a large prospective multi-centric study evaluating SNB in cutaneous melanoma, breast and pelvic malignancies, demonstrated that adding SPECT to PL leads to surgical adjustments in a considerable number of patients...
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28533175/dendrimer-encapsulated-and-conjugated-delivery-of-berberine-a-novel-approach-mitigating-toxicity-and-improving-in-vivo-pharmacokinetics
#12
Lokesh Gupta, Ashok Kumar Sharma, Avinash Gothwal, Mohammed Shahid Khan, Mahaveer Prasad Khinchi, Arem Qayum, Shashank Kumar Singh, Umesh Gupta
Berberine (BBR) is a nitrogenous cyclic natural alkaloid with potential anticancer activity. However it has been less explored due to its poor pharmacokinetic profile. Dendrimers (e.g. PAMAM) have promising potential to deliver anticancer drugs/bio-actives because of their well-defined architecture, monodispersity and tailor-made surface functionality. In the present study it was attempted to deliver berberine through G4 PAMAM dendrimers by conjugation (BPC) as well as encapsulation (BPE) approach. The developed encapsulated and conjugated berberine formulations were found to have size in the approximate range of 100-200nm while zeta potential was almost same as PAMAM G4 dendrimer...
May 19, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28532571/age-and-sex-related-differences-in-masseter-size-and-its-role-in-oral-functions
#13
Chia-Shu Lin, Ching-Yi Wu, Shih-Yun Wu, Kai-Hsiang Chuang, Hsiao-Han Lin, Dong-Hui Cheng, Wen-Liang Lo
BACKGROUND: The masseter muscle plays a key structural and functional role in the stomatognathic system. Researchers' cumulative evidence has suggested that the variation in the size of a person's masseter muscle may be a critical factor related to individual differences in oral functions. However, researchers have not yet investigated systematically the effect of a person's age and sex on masseter muscle size and the association of masseter muscle size with other clinical metrics, including masticatory performance (MP) and salivary flow rate (SFR)...
May 20, 2017: Journal of the American Dental Association
https://www.readbyqxmd.com/read/28531967/climate-response-of-oak-quercus-spp-an-evidence-of-a-bioclimatic-boundary-induced-by-the-carpathians
#14
Constantin Nechita, Ionel Popa, Ólafur Eggertsson
Tree-ring information and climate response data were applied to investigate the potential of the Carpathian Mountains to influence tree-growth patterns. Recent studies reveal the importance of constructing a dense spatial network of oak tree-ring chronologies in this area, which may be the key to linking the North Central European and East Mediterranean tree records. We establish sixteen oak (Quercus robur L.) and sessile oak (Quercus petraea (Matt.) Liebl.) site chronologies along a longitudinal gradient (from 22...
May 18, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28531456/multi-frequency-bioelectrical-impedance-analysis-bia-compared-to-magnetic-resonance-imaging-mri-for-estimation-of-fat-free-mass-in-colorectal-cancer-patients-treated-with-chemotherapy
#15
Stine S Palle, Line T Møllehave, Zahra Taheri-Kadkhoda, Susanne Johansen, Lisbeth Larsen, Janne W Hansen, Nikolaj K G Jensen, Anette O Elingaard, Alice H Møller, Karen Larsen, Jens R Andersen
BACKGROUND: Changes in body composition in cancer patients during chemotherapy are associated with treatment related toxicities or mortalities. Thus, it is relevant to identify accessible, relatively inexpensive, portable and reliable tools for evaluation of body composition in cancer patients during the course of their treatments. OBJECTIVE: To examine relationships between single cross-sectional thighs magnetic resonance imaging (MRI), skeletal muscle mass (SM) as reference and multi-frequency bioelectrical impedance analysis (BIA) fat free mass (FFM) in patients with colorectal cancer undergoing chemotherapy...
December 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28531308/challenges-of-research-recruitment-in-a-university-setting-in-england
#16
Claudia Vadeboncoeur, Charlie Foster, Nick Townsend
The recruitment is an integral part of most research projects in medical sciences involving human participants. In health promotion research, there is increasing work on the impact of environments. Settings represent environments such as schools where social, physical and psychological development unfolds. In this study, we investigated weight gain in students within a university setting. Barriers to access and recruitment of university students within a specific setting, in the context of health research are discussed...
May 20, 2017: Health Promotion International
https://www.readbyqxmd.com/read/28531119/quality-attributes-and-in-vitro-bioequivalence-of-different-brands-of-amoxicillin-trihydrate-tablets
#17
Moawia M Al-Tabakha, Khairi M S Fahelelbom, Dana Emad Eddin Obaid, Sadik Sayed
Bacterial resistance and antibiotic drug effectiveness can be related to administering generic products with a subtherapeutic dose or poor in vivo drug release. The aim of this study was to investigate whether locally marketed amoxicillin tablets have the required chemical and physical attributes, including in vitro bioequivalence performance. Five generic products (T1, T2, T3, T4, and T5) containing combination of amoxicillin trihydrate and potassium clavulanate as 1 g strength present in immediate release tablets were compared to the reference listed drug product Augmentin® (R) for weight variation, friability, resistance to crushing, and chemical content of amoxicillin...
May 20, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28530849/allergic-bronchopulmonary-aspergillosis-in-cystic-fibrosis-mr-imaging-of-airway-mucus-contrasts-as-a-tool-for-diagnosis
#18
Gaël Dournes, Patrick Berger, John Refait, Julie Macey, Stephanie Bui, Laurence Delhaes, Michel Montaudon, Olivier Corneloup, Jean-François Chateil, Roger Marthan, Michaël Fayon, François Laurent
Purpose To assess the diagnostic accuracy of mucus contrast characterization by using magnetic resonance (MR) imaging to discriminate allergic bronchopulmonary aspergillosis (ABPA) in cystic fibrosis (CF). Materials and Methods The study was approved by the local Ethics Committee, and all patients or their parents gave written informed consent. One hundred ten consecutive patients with CF were screened between January 2014 and July 2015. All patients underwent a non-contrast material-enhanced MR protocol that included routine T1-weighted and T2-weighted sequences...
May 22, 2017: Radiology
https://www.readbyqxmd.com/read/28530407/a-gadolinium-complex-of-1-4-7-10-tetraazacyclododecane-1-4-7-trisacetic-acid-do3a-ethoxybenzyl-eob-conjugate-as-a-new-macrocyclic-hepatobiliary-mri-contrast-agent
#19
Ah Rum Baek, Hee-Kyung Kim, Subin Park, Gang Ho Lee, Hyo Jeung Kang, Jae Chang Jung, Joon-Suk Park, Hun-Kyu Ryeom, Tae-Jeong Kim, Yongmin Chang
We report the synthesis of a macrocyclic Gd chelate based on a 1,4,7,10-tetraazacyclododecane-1,4,7-trisacetic acid (DO3A) coordination cage bearing an ethoxybenzyl (EOB) moiety and discuss its use as a T1 hepatobiliary magnetic resonance imaging (MRI) contrast agent. The new macrocyclic liver agent shows high chelation stability and high r1 relaxivity compared with linear-type Gd chelates, which are the current clinically approved liver agents. Our macrocyclic, liver-specific Gd chelate was evaluated in vivo through biodistribution analysis and liver MRI, which demonstrated its high tumor detection sensitivity and suggested that the new Gd complex is a promising contrast agent for liver cancer imaging...
May 22, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28529993/endoscopic-treatment-for-high-risk-t1-colorectal-cancer-is-it-better-to-begin-with-endoscopic-or-surgical-treatment
#20
EDITORIAL
Shintaro Fujihara, Hirohito Mori, Hideki Kobara, Noriko Nishiyama, Akira Yoshitake, Akihiro Deguchi, Tsutomu Masaki
No abstract text is available yet for this article.
2017: Translational Gastroenterology and Hepatology
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