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https://www.readbyqxmd.com/read/28108411/production-and-characterization-of-medium-chain-length-polyhydroxyalkanoates-copolymer-from-arctic-psychrotrophic-bacterium-pseudomonas-sp-pamc-28620
#1
Ganesan Sathiyanarayanan, Shashi Kant Bhatia, Hun-Suk Song, Jong-Min Jeon, Jun-Young Kim, Yoo Kyung Lee, Yun-Gon Kim, Yung-Hun Yang
Arctic psychrotrophic bacterium Pseudomonas sp. PAMC 28620 was found to produce a distinctive medium-chain-length polyhydroxyalkanoates (MCL-PHAs) copolymer when grown on structurally unrelated carbon sources including glycerol. The maximum MCL-PHAs copolymer yield was obtained about 52.18±4.12% from 7.95±0.66g/L of biomass at 144h of fermentation when 3% glycerol was used as sole carbon and energy source during the laboratory-scale bioreactor process. Characterization of the copolymer was carried out using fourier transform infrared spectroscopy (FTIR), gas chromatography-mass spectrometry (GC-MS), proton ((1)H) and carbon ((13)C) nuclear magnetic resonance spectroscopy (NMR), gel permeation chromatography (GPC), differential scanning calorimeter (DSC) and thermo-gravimetric analysis (TGA)...
January 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28107361/dectin-3-is-not-required-for-protection-against-cryptococcus-neoformans-infection
#2
Althea Campuzano, Natalia Castro-Lopez, Karen L Wozniak, Chrissy M Leopold Wager, Floyd L Wormley
C-type lectin receptors (CLRs) are diverse, trans-membrane proteins that function as pattern recognition receptors (PRRs) which are necessary for orchestrating immune responses against pathogens. CLRs have been shown to play a major role in recognition and protection against fungal pathogens. Dectin-3 (also known as MCL, Clecsf8, or Clec4d) is a myeloid cell-specific CLR that recognizes mycobacterial trehalose 6,6'-dimycolate (TDM) as well as α-mannans present in the cell wall of fungal pathogens. To date, a potential role for Dectin-3 in the mediation of protective immune responses against C...
2017: PloS One
https://www.readbyqxmd.com/read/28106988/factors-governing-the-performance-of-bauxite-for-fluoride-remediation-of-groundwater
#3
Aruna Kirani Katyayani Cherukumilli, Caroline Delaire, Susan E Amrose, Ashok J Gadgil
Globally, 200 million people drink groundwater contaminated with fluoride concentrations exceeding the World Health Organization's recommended level (WHO-MCL =1.5 mg F-/L). This study investigates the use of minimally-processed (dried/milled) bauxite ore as an inexpensive adsorbent for remediating fluoride-contaminated groundwater in resource-constrained areas. Adsorption experiments in synthetic groundwater using bauxites from Guinea, Ghana, USA, and India as single-use batch dispersive media demonstrated that doses of ~10-23 g/L could effectively remediate 10 mg F-/L...
January 20, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28105237/xanthohumol-inhibits-proliferation-of-laryngeal-squamous-cell-carcinoma
#4
Yan Li, Kai Wang, Shankai Yin, Hongliang Zheng, Daliu Min
Xanthohumol is a flavonoid compound that exhibits antioxidant and anticancer effects, and is used to treat atherosclerosis. The aim of the present study was to investigate the effect of xanthohumol on the cell proliferation of laryngeal squamous cell carcinoma and to understand the mechanism of its action. The effects of xanthohumol on the cell viability and apoptosis rate of laryngeal squamous cell carcinoma SCC4 cells were assessed by Annexin V-fluorescein isothiocyanate/propidium iodide staining. In addition, the expression levels of pro-apoptotic proteins, caspase-3, caspase-8, caspase-9, poly ADP ribose polymerase (PARP) p53 and apoptosis-inducing factor (AIF), as well as anti-apoptotic markers, B-cell lymphoma 2 (Bcl-2) and myeloid cell leukemia 1 (Mcl-1), were analyzed by western blotting...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28095146/phase-i-first-in-human-study-of-venetoclax-in-patients-with-relapsed-or-refractory-non-hodgkin-lymphoma
#5
Matthew S Davids, Andrew W Roberts, John F Seymour, John M Pagel, Brad S Kahl, William G Wierda, Soham Puvvada, Thomas J Kipps, Mary Ann Anderson, Ahmed Hamed Salem, Martin Dunbar, Ming Zhu, Franklin Peale, Jeremy A Ross, Lori Gressick, Monali Desai, Su Young Kim, Maria Verdugo, Rod A Humerickhouse, Gary B Gordon, John F Gerecitano
Purpose B-cell leukemia/lymphoma-2 (BCL-2) overexpression is common in many non-Hodgkin lymphoma (NHL) subtypes. A phase I trial in patients with NHL was conducted to determine safety, pharmacokinetics, and efficacy of venetoclax, a selective, potent, orally bioavailable BCL-2 inhibitor. Patients and Methods A total of 106 patients with relapsed or refractory NHL received venetoclax once daily until progressive disease or unacceptable toxicity at target doses from 200 to 1,200 mg in dose-escalation and safety expansion cohorts...
January 17, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28094763/measuring-the-effect-of-femoral-malrotation-on-knee-joint-biomechanics-for-total-knee-arthroplasty-using-computational-simulation
#6
K-T Kang, Y-G Koh, J Son, O-R Kwon, C Baek, S H Jung, K K Park
OBJECTIVES: Malrotation of the femoral component can result in post-operative complications in total knee arthroplasty (TKA), including patellar maltracking. Therefore, we used computational simulation to investigate the influence of femoral malrotation on contact stresses on the polyethylene (PE) insert and on the patellar button as well as on the forces on the collateral ligaments. MATERIALS AND METHODS: Validated finite element (FE) models, for internal and external malrotations from 0° to 10° with regard to the neutral position, were developed to evaluate the effect of malrotation on the femoral component in TKA...
November 2016: Bone & Joint Research
https://www.readbyqxmd.com/read/28088782/pde5-inhibitors-enhance-the-lethality-of-pemetrexed-sorafenib
#7
Laurence Booth, Jane L Roberts, Andrew Poklepovic, Paul Dent
The combination of pemetrexed and sorafenib has significant clinical activity against a wide variety of tumor types in patients and the present studies were performed to determine whether sildenafil enhances the killing potential of [pemetrexed + sorafenib]. In multiple genetically diverse lung cancer cell lines, sildenafil enhanced the lethality of [pemetrexed + sorafenib]. The three-drug combination reduced the activities of AKT, mTOR and STAT transcription factors; increased the activities of eIF2α and ULK-1; lowered the expression of MCL-1, BCL-XL, thioredoxin and SOD2; and increased the expression of Beclin1...
January 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28085697/akt-activation-was-not-essential-for-hepatocellular-carcinoma-cell-survival-under-glucose-deprivation
#8
Jing Zhou, Yue Tang, Ze-Jun Xie, Jing-Ning Lu, Jing-Huan Deng, Xiao-Wei Huang, Shing Chuan Hooi, Min He, Guo-Dong Lu
Hepatocellular carcinoma (HCC) is the second leading cause of cancer-related death worldwide, with a dismal 5-year survival rate less than 15%. The present study aimed to investigate whether AKT inhibition and glucose deprivation could synergistically kill HCC cells and the molecular mechanisms involved. HCC cells were starved in glucose deprivation, and then the resultant cell death was determined by flow cytometry and mitochondrial oxygen consumption rates using a Seahorse XF-24 Extracellular Flux Analyzer...
January 12, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28082441/determinants-of-fatal-bleeding-during-induction-therapy-for-acute-promyelocytic-leukemia-in-the-atra-era
#9
Simon Mantha, Debra A Goldman, Sean M Devlin, Ju-Whei Lee, Diana Zannino, Marnie Collins, Dan Douer, Harry J Iland, Mark R Litzow, Eytan M Stein, Frederick R Appelbaum, Richard A Larson, Richard Stone, Bayard L Powell, Susan Geyer, Kristina Laumann, Jacob M Rowe, Harry Erba, Steven Coutre, Megan Othus, Jae H Park, Peter H Wiernik, Martin S Tallman
Acute promyelocytic leukemia (APL) is commonly complicated by a complex coagulopathy. Uncertainty remains as to which markers of bleeding risk are independent predictors. Drawing from five large clinical trials that included ATRA as part of induction, we assessed known determinants of bleeding at baseline and evaluated them as potential predictors of hemorrhagic death (HD) in the first 30 days of treatment. The studies included were: ALLG APML3 (single arm of ATRA + idarubicin ± prednisone), ALLG APML4 (single arm of ATRA + idarubicin + arsenic trioxide + prednisone), CALGB C9710 (single arm of ATRA + cytarabine + daunorubicin), ECOG-ACRIN E2491 (intergroup I0129, consisting of daunorubicin + cytarabine vs ATRA) and SWOG S0521 (single arm induction of ATRA + cytarabine + daunorubicin)...
January 12, 2017: Blood
https://www.readbyqxmd.com/read/28079887/drp-1-is-required-for-bh3-mimetic-mediated-mitochondrial-fragmentation-and-apoptosis
#10
Mateus Milani, Dominic P Byrne, Georgia Greaves, Michael Butterworth, Gerald M Cohen, Patrick A Eyers, Shankar Varadarajan
The concept of using BH3 mimetics as anticancer agents has been substantiated by the efficacy of selective drugs, such as Navitoclax and Venetoclax, in treating BCL-2-dependent haematological malignancies. However, most solid tumours depend on MCL-1 for survival, which is highly amplified in multiple cancers and a major factor determining chemoresistance. Most MCL-1 inhibitors that have been generated so far, while demonstrating early promise in vitro, fail to exhibit specificity and potency in a cellular context...
January 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28079103/erratum-antigen-affinity-controls-pre-germinal-center-b-cell-selection-by-promoting-mcl-1-induction-through-baff-receptor-signaling
#11
Felix M Wensveen, Erik Slinger, Martijn Ha van Attekum, Robert Brink, Eric Eldering
No abstract text is available yet for this article.
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28069035/fbw7-regulates-apoptosis-in-activated-b-cell-like-diffuse-large-b-cell-lymphoma-by-targeting-stat3-for-ubiquitylation-and-degradation
#12
Su Yao, Fangping Xu, Yu Chen, Yan Ge, Fen Zhang, Huijie Huang, Li Li, Danyi Lin, Xinlan Luo, Jie Xu, Donglan Luo, Xiaolan Zhu, Yanhui Liu
BACKGROUND: The ubiquitin-ligase Fbw7 acts as a tumor suppressor, targeting lots of proto-oncogenes for proteolysis. However, the exact role of Fbw7 in diffuse large B-cell lymphoma (DLBCL) development remains unclear. METHODS: We evaluated Fbw7 expression in patient samples of DLBCL using immunohistochemical staining. The effect of Fbw7 overexpression on cell viability and apoptosis was investigated using activated B-cell (ABC) like DLBCL cell lines. The mechanism of Fbw7 activity in DLBCL was investigated using immunoprecipitation, ubiquitination, western blot and qualitative analyses...
January 10, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28066928/predictive-factors-and-outcomes-for-ibrutinib-therapy-in-relapsed-refractory-mantle-cell-lymphoma-a-real-world-study
#13
Narendranath Epperla, Mehdi Hamadani, Amanda F Cashen, Kwang W Ahn, Eunhye Oak, Abraham S Kanate, Oscar Calzada, Jonathon B Cohen, Luke Farmer, Nilanjan Ghosh, Michael Tallarico, Chadi Nabhan, Luciano J Costa, Vaishalee P Kenkre, Parameswaran N Hari, Timothy S Fenske
Ibrutinib has demonstrated significant activity in relapsed/refractory mantle cell lymphoma (MCL) in clinical trials. However, the impact of hematopoietic cell transplantation on the outcomes of ibrutinib and the predictive factors for ibrutinib response has not been well studied. Hence, we conducted a multicenter retrospective study of MCL patients who received ibrutinib to (1) determine the overall response rate (ORR), duration of response (DOR), progression-free survival (PFS), and overall survival (OS) of ibrutinib in routine clinical practice, (2) examine characteristics predictive of response to ibrutinib therapy, and (3) describe the outcomes of patients failing ibrutinib...
January 8, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28065557/manual-laryngeal-fixation-facilitates-tracheal-intubation-during-chest-compression-a-randomized-crossover-manikin-study
#14
Takanobu Fujisawa, Nobuyasu Komasawa, Kazuo Hattori, Ryosuke Mihara, Toshiaki Minami
PURPOSE: We compared the effectiveness of external manual laryngeal fixation (MLF) for tracheal intubation during chest compression using three laryngoscopes, the Macintosh laryngoscope (McL), McGRATH® MAC (McGRGTH), and Pentax-AWS Airwayscope® (AWS) on an adult manikin. METHODS: Sixteen novice doctors and 15 experienced anesthesiologists performed tracheal intubation during chest compression on an adult manikin using the McL, McGRATH, and AWS with or without MLF...
December 30, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28063408/creb-knockdown-inhibits-growth-and-induces-apoptosis-in-human-pre-b-acute-lymphoblastic-leukemia-cells-through-inhibition-of-prosurvival-signals
#15
Rima Manafi Shabestari, Majid Safa, Fatemeh Alikarami, Mehdi Banan, Ahmad Kazemi
A majority of acute lymphoblastic leukemia patients overexpress CREB in the bone marrow. However, the functional significance of this up-regulation and the detailed molecular mechanism behind the regulatory effect of CREB on the growth of B-cell precursor acute lymphoblastic leukemia (BCP-ALL) cells has not been elucidated. We demonstrated here that CREB knockdown induced apoptosis and impaired growth of BCP-ALL NALM-6 cells which was associated with caspase activation. The gene expression levels of prosurvival signals Bcl-2, Mcl-1, Bcl-xL, survivin and XIAP were down-regulated upon CREB suppression...
January 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28062120/robotic-simulation-of-identical-athletic-task-kinematics-on-cadaveric-limbs-exhibits-a-lack-of-differences-in-knee-mechanics-between-contralateral-pairs
#16
Nathaniel A Bates, April L McPhearson, Rebecca J Nesbitt, Jason T Shearn, Gregory D Myer, Timothy E Hewett
Limb asymmetry is a known factor for increased ACL injury risk. These asymmetries are normally observed during in vivo testing. Prior studies have developed in vitro testing methodologies driven by in vivo kinematics to investigate knee mechanics relative to ACL injury. The objective of this study was to determine if mechanical side-to-side asymmetries persist in contralateral pairs during in vitro simulation testing. In vivo kinematics were recorded for male and female drop vertical jump and sidestep cutting tasks...
December 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28056292/-research-of-the-expression-of-subchondral-bone-of-indian-hedgehog-with-early-experimental-osteoarthritis-induced-by-mechanical-stress
#17
R K Zhang, G W Li, D W Zhang, B Yu, S Y Feng
Objective: To investigate the the expression of subchondral bone of Indian hedgehog(Ihh) with early experimental osteoarthritis induced by mechanical stress. Methods: The animals were equally divided into two groups: experimental group(E-group, n=15) and control group(S-group, n=15). The right knee joints of E-group underwent surgery, which involved in both medial collateral ligament (MCL) transaction and medial meniscectomy, while the control group was only carried out with a sham operation.The rats were killed at 1, 2 and 4 weeks postsurgery to obtain the right knee joints...
January 3, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28056186/tampering-with-cancer-chemoresistance-by-targeting-the-tgm2-il6-autophagy-regulatory-network
#18
Han Zhang, Nami McCarty
Macroautophagy/autophagy is a well-established process involved in maintaining cellular homeostasis, but its role in cancer is complex and even controversial. Many studies have reported a correlative relationship between increased autophagy and evolving cancer cells under stress conditions such as nutrient or oxygen deprivation; however, there has been a lack of a plausible mechanistic link to properly target the autophagy process in the context of this microenvironment. We recently unveiled a positive regulatory loop involving TGM2 (transglutaminase 2)-NFKB/NF-κB signaling, IL6 and autophagy in cancer using mantle cell lymphoma (MCL) as a model system...
January 5, 2017: Autophagy
https://www.readbyqxmd.com/read/28052347/apoptotic-effects-of-bovine-apo-lactoferrin-on-hela-tumor-cells
#19
Carla Luzi, Fabrizia Brisdelli, Roberto Iorio, Argante Bozzi, Veronica Carnicelli, Antonio Di Giulio, Anna Rita Lizzi
Lactoferrin (Lf), a cationic iron-binding glycoprotein of 80 kDa present in body secretions, is known as a compound with marked antimicrobial activity. In the present study, the apoptotic effect of iron-free bovine lactoferrin (apo-bLf) on human epithelial cancer (HeLa) cells was examined in association with reactive oxygen species and glutathione (GSH) levels. Apoptotic effect of iron-free bovine lactoferrin inhibited the growth of HeLa cells after 48 hours of treatment while the diferric-bLf was ineffective in the concentration range tested (from 1 to 12...
January 3, 2017: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/28040733/recommendations-for-clinical-trial-development-in-mantle-cell-lymphoma
#20
REVIEW
Stephen E Spurgeon, Brian G Till, Peter Martin, Andre H Goy, Martin P Dreyling, Ajay K Gopal, Michael LeBlanc, John P Leonard, Jonathan W Friedberg, Lawrence Baizer, Richard F Little, Brad S Kahl, Mitchell R Smith
Mantle cell lymphoma (MCL) comprises around 6% of all non-Hodgkin's lymphoma (NHL) diagnoses. In younger patients, age less than 60 to 65 years, aggressive induction often followed by consolidation with autologous stem cell transplant has suggested improved outcomes in this population. Less intensive therapies in older patients often followed by maintenance have been studied or are under active investigation. However, despite recent advances, MCL remains incurable, with a median overall survival of around five years...
January 2017: Journal of the National Cancer Institute
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