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https://www.readbyqxmd.com/read/28347131/preclinical-in-vivo-cancer-straightway-to-patients
#1
Marion de Jong, Stephen Mather, Theodosia Maina
Detection of useful cellular targets has strongly stimulated personalized tumor-targeted imaging and therapy approaches, also involving synthesis and evaluation of nuclear imaging probes with potential for clinical applications. Reviews of preclinical and translational studies concerning such probes, including radiolabeled antibodies, nanobodies, affibodies, peptides, small molecule inhibitors, and nanoparticles, are presented in this issue. As most tracers described in these articles have been developed for the field of cancer imaging and radionuclide therapy, the current article on preclinical studies will focus on cancer research as well...
June 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28346859/circulating-zbed3-levels-in-subjects-with-and-without-metabolic-syndrome
#2
Wenjing Hu, Bo Tian, Xiaoqiang Li, Ling Li, Lin Zhang, Hua Liu, Gangyi Yang, Yongsheng Liu, Xiaoyun Fan
BACKGROUND: Zinc-finger BED domain-containing 3 (Zbed3) is a member of the zinc-finger domain protein superfamily. Recent studies have shown that Zbed3 is associated with insulin resistance and type 2 diabetes mellitus. However, no report has demonstrated the association of Zbed3 with metabolic syndrome (MetS) in humans. The purpose of this study is to examine the association between Zbed3 and MetS in a cross-sectional study. METHODS: We conducted a cross-sectional study of a Chinese population, including 167 non-MetS subjects and 144 newly diagnosed MetS (nMetS) patients...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28346858/circulating-soluble-il-6-receptor-concentration-and-visceral-adipocyte-size-are-related-to-insulin-resistance-in-taiwanese-adults-with-morbid-obesity
#3
Feng-Chih Kuo, Ya-Hsien Huang, Fu-Huang Lin, Yi-Jen Hung, Chang-Hsun Hsieh, Chieh-Hua Lu, Sheng-Chiang Su, Chia-Luen Huang, Chien-Hsing Lee, Nain-Feng Chu
BACKGROUND: Morbid obesity is related to chronic inflammation and many metabolic complications. Interleukin (IL)-6 plays a pivotal pathophysiological role in obesity, and IL-6 trans-signaling through the soluble IL-6 receptor (sIL-6R) has a major proinflammatory effect. The aim of this study was to investigate the association between sIL-6R, adipocyte size, and insulin resistance in morbidly obese individuals. METHODS: We measured concentrations of sIL-6R, high-sensitivity C-reactive protein, and lipid parameters and estimated homeostasis model assessment of insulin resistance (HOMA-IR) before the patients underwent bariatric surgery...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28346853/high-prevalence-of-vitamin-d-deficiency-and-correlation-of-serum-vitamin-d-with-cardiovascular-risk-in-patients-with-metabolic-syndrome
#4
Mohammad J Alkhatatbeh, Khalid K Abdul-Razzak, Lubna Q Khasawneh, Nesreen A Saadeh
BACKGROUND: Metabolic syndrome (MetS) identifies subjects with increased risk of cardiovascular disease when they have a combination of insulin resistance, obesity, hypertension, hyperglycemia, low high-density lipoprotein cholesterol (HDL-C), and elevated triglycerides (TGs). Increasing evidence suggests that vitamin D deficiency could be associated with diabetes and MetS. The aim is to assess if 25-hydroxyvitamin D (25-OHD) is correlated with cardiovascular risk components of MetS. METHODS: A cross-sectional study involved 124 diabetic patients with MetS according to International Diabetes Federation definition...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28346782/%C3%AE%C2%BA-carrageenan-enhances-the-biomineralization-and-osteogenic-differentiation-of-electrospun-phb-and-phbv-fibers
#5
Nowsheen Goonoo, Behnam Khanbabaee, Marc Steuber, Archana Bhaw-Luximon, Ulrich Jonas, Ullrich Pietsch, Dhanjay Jhurry, Holger Schönherr
Novel electrospun materials for bone tissue engineering were obtained by blending biodegradable polyhydroxybutyrate (PHB) or polyhydroxybutyrate valerate (PHBV) with the anionic sulfated polysaccharide κ-carrageenan (κ-CG) in varying ratios. In both systems, the two components phase separated as shown by FTIR, DSC and TGA. According to the contact angle data, κ-CG was localized preferentially at the fiber surface in PHBV/ κ-CG blends in contrast to PHB/ κ-CG, where the biopolymer was mostly found within the fiber...
March 27, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28346509/systematic-identification-of-phosphorylation-mediated-protein-interaction-switches
#6
Matthew J Betts, Oliver Wichmann, Mathias Utz, Timon Andre, Evangelia Petsalaki, Pablo Minguez, Luca Parca, Frederick P Roth, Anne-Claude Gavin, Peer Bork, Robert B Russell
Proteomics techniques can identify thousands of phosphorylation sites in a single experiment, the majority of which are new and lack precise information about function or molecular mechanism. Here we present a fast method to predict potential phosphorylation switches by mapping phosphorylation sites to protein-protein interactions of known structure and analysing the properties of the protein interface. We predict 1024 sites that could potentially enable or disable particular interactions. We tested a selection of these switches and showed that phosphomimetic mutations indeed affect interactions...
March 27, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28346471/effect-of-functional-sympathetic-nervous-system-impairment-of-the-liver-and-abdominal-visceral-adipose-tissue-on-circulating-triglyceride-rich-lipoproteins
#7
Michael F La Fountaine, Christopher M Cirnigliaro, Steven C Kirshblum, Cristin McKenna, William A Bauman
BACKGROUND: Interruption of sympathetic innervation to the liver and visceral adipose tissue (VAT) in animal models has been reported to reduce VAT lipolysis and hepatic secretion of very low density lipoprotein (VLDL) and concentrations of triglyceride-rich lipoprotein particles. Whether functional impairment of sympathetic nervous system (SNS) innervation to tissues of the abdominal cavity reduce circulating concentrations of triglyceride (TG) and VLDL particles (VLDL-P) was tested in men with spinal cord injury (SCI)...
2017: PloS One
https://www.readbyqxmd.com/read/28346462/wnt-tcf1-pathway-restricts-embryonic-stem-cell-cycle-through-activation-of-the-ink4-arf-locus
#8
Anchel De Jaime-Soguero, Francesco Aulicino, Gokhan Ertaylan, Anna Griego, Aniello Cerrato, Aravind Tallam, Antonio Del Sol, Maria Pia Cosma, Frederic Lluis
Understanding the mechanisms regulating cell cycle, proliferation and potency of pluripotent stem cells guarantees their safe use in the clinic. Embryonic stem cells (ESCs) present a fast cell cycle with a short G1 phase. This is due to the lack of expression of cell cycle inhibitors, which ultimately determines naïve pluripotency by holding back differentiation. The canonical Wnt/β-catenin pathway controls mESC pluripotency via the Wnt-effector Tcf3. However, if the activity of the Wnt/β-catenin controls the cell cycle of mESCs remains unknown...
March 27, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28346394/engineered-resistant-starch-ers-diet-shapes-colon-microbiota-profile-in-parallel-with-the-retardation-of-tumor-growth-in-in-vitro-and-in-vivo-pancreatic-cancer-models
#9
Concetta Panebianco, Kaarel Adamberg, Signe Adamberg, Chiara Saracino, Madis Jaagura, Kaia Kolk, Anna Grazia Di Chio, Paolo Graziano, Raivo Vilu, Valerio Pazienza
BACKGROUND/AIMS: Pancreatic cancer (PC) is ranked as the fourth leading cause of cancer-related deaths worldwide. Despite recent advances in treatment options, a modest impact on the outcome of the disease is observed so far. We have previously demonstrated that short-term fasting cycles have the potential to improve the efficacy of chemotherapy against PC. The aim of this study was to assess the effect of an engineered resistant-starch (ERS) mimicking diet on the growth of cancer cell lines in vitro, on the composition of fecal microbiota, and on tumor growth in an in vivo pancreatic cancer mouse xenograft model...
March 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28346363/rapid-and-low-cost-crp-measurement-by-integrating-a-paper-based-microfluidic-immunoassay-with-smartphone-crp-chip
#10
Meili Dong, Jiandong Wu, Zimin Ma, Hagit Peretz-Soroka, Michael Zhang, Paul Komenda, Navdeep Tangri, Yong Liu, Claudio Rigatto, Francis Lin
Traditional diagnostic tests for chronic diseases are expensive and require a specialized laboratory, therefore limiting their use for point-of-care (PoC) testing. To address this gap, we developed a method for rapid and low-cost C-reactive protein (CRP) detection from blood by integrating a paper-based microfluidic immunoassay with a smartphone (CRP-Chip). We chose CRP for this initial development because it is a strong biomarker of prognosis in chronic heart and kidney disease. The microfluidic immunoassay is realized by lateral flow and gold nanoparticle-based colorimetric detection of the target protein...
March 26, 2017: Sensors
https://www.readbyqxmd.com/read/28346362/nutrition-assessment-of-b-vitamins-in-highly-active-and-sedentary-women
#11
Kathleen Woolf, Nicole L Hahn, Megan M Christensen, Amanda Carlson-Phillips, Christine M Hansen
BACKGROUND: Female athletes and active women require adequate nutrition for optimal health and performance. Nutrition assessments are needed to identify potential nutrients of concern. Folate, vitamin B6, and vitamin B12 function in important pathways used during physical activity and female athletes may be at risk for poor status of these micronutrients. This cross-sectional study described a comprehensive nutrition assessment of the B-vitamins (folate, vitamin B6, and vitamin B12) using both dietary (food and dietary supplements) and biochemical assessments among highly active and sedentary women...
March 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28346350/fast-and-selective-plasmonic-serotonin-detection-with-aptamer-gold-nanoparticle-conjugates
#12
Jorge L Chávez, Joshua A Hagen, Nancy Kelley-Loughnane
Neurotransmitters detection is critical to understanding communication between the brain and peripheral tissue. Serotonin is a key neurotransmitter linked to a number of conditions, but a full understanding of its role in disease is still lacking. The development of fast and selective serotonin detection platforms will provide researchers with tools to monitor serotonin in individuals before and after treatment for the condition of interest. Aptamer-gold nanoparticles conjugates that responded colorimetrically to serotonin with minimal response to its metabolite and other neurotransmitters were designed by simply adsorbing the DNA on the surface of AuNPs...
March 25, 2017: Sensors
https://www.readbyqxmd.com/read/28346156/association-of-sleep-characteristics-with-cardiovascular-and-metabolic-risk-factors-in-a-population-sample-the-chicago-area-sleep-study
#13
Samantha E Montag, Kristen L Knutson, Phyllis C Zee, Jeffrey J Goldberger, Jason Ng, Kwang-Youn A Kim, Mercedes R Carnethon
OBJECTIVES: To investigate the association of sleep characteristics with prevalent hypertension, diabetes, and obesity in a multiethnic cohort. DESIGN: This study used a population-based cross-sectional study design. SETTING: Participants were recruited between 2009 and 2011 from Chicago, Illinois, and the surrounding suburbs. PARTICIPANTS: Participants were 492 adults aged 35 to 64years who self-reported as white, black, Hispanic, or Asian and who had a low likelihood of sleep apnea based on the apnea screening questionnaires and 1 night of apnea screening using an in-home device (apnea hypopnea index <15 or oxygen desaturation index <10)...
April 2017: Sleep Health
https://www.readbyqxmd.com/read/28346136/environment-determines-evolutionary-trajectory-in-a-constrained-phenotypic-space
#14
David T Fraebel, Harry Mickalide, Diane Schnitkey, Jason Merritt, Thomas E Kuhlman, Seppe Kuehn
Constraints on phenotypic variation limit the capacity of organisms to adapt to the multiple selection pressures encountered in natural environments. To better understand evolutionary dynamics in this context, we select Escherichia coli for faster migration through a porous environment, a process which depends on both motility and growth. We find that a trade-off between swimming speed and growth rate constrains the evolution of faster migration. Evolving faster migration in rich medium results in slow growth and fast swimming, while evolution in minimal medium results in fast growth and slow swimming...
March 27, 2017: ELife
https://www.readbyqxmd.com/read/28346045/a-modular-and-adaptive-mass-spectrometry-based-platform-for-support-of-bioprocess-development-toward-optimal-host-cell-protein-clearance
#15
Donald E Walker, Feng Yang, Joseph Carver, Koman Joe, David A Michels, X Christopher Yu
A modular and adaptive mass spectrometry (MS)-based platform was developed to provide fast, robust and sensitive host cell protein (HCP) analytics to support process development. This platform relies on one-dimensional ultra-high performance liquid chromatography (1D UHPLC) combined with several different MS data acquisition strategies to meet the needs of purification process development. The workflow was designed to allow HCP composition and quantitation for up to 20 samples per day, a throughput considered essential for real time bioprocess development support...
March 27, 2017: MAbs
https://www.readbyqxmd.com/read/28345885/synthesis-of-highly-uniform-and-compact-lithium-zinc-ferrite-ceramics-via-an-efficient-low-temperature-approach
#16
Fang Xu, Yulong Liao, Dainan Zhang, Tingchuan Zhou, Jie Li, Gongwen Gan, Huaiwu Zhang
LiZn ferrite ceramics with high saturation magnetization (4πMs) and low ferromagnetic resonance line widths (ΔH) represent a very critical class of material for microwave ferrite devices. Many existing approaches emphasize promotion of the grain growth (average size is 10-50 μm) of ferrite ceramics to improve the gyromagnetic properties at relatively low sintering temperatures. This paper describes a new strategy for obtaining uniform and compact LiZn ferrite ceramics (average grains size is ∼2 μm) with enhanced magnetic performance by suppressing grain growth in great detail...
March 27, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28345877/direct-analysis-of-metal-ions-in-solutions-with-high-salt-concentrations-by-total-reflection-x-ray-fluorescence-txrf
#17
Mercedes Regadío, Sofía Riaño, Koen Binnemans, Tom Vander Hoogerstraete
Total Reflection X-ray Fluorescence (TXRF) is becoming more and more popular for elemental analysis in academia and industry. However, simplification of the procedures for analyzing samples with complex compositions and residual matrix effects is still needed. In this work, the effect of an inorganic (CaCl2) and an organic (tetraalkylphosphonium chloride) matrix on metals quantification by TXRF was investigated for liquid samples. The samples were spiked with up to 20 metals at concentrations ranging from 3 to 50 mg L-1 per element, including elements with spectral peaks near the peaks of the matrix elements or near the Raleigh and Compton scattering peaks of the X-ray source (molybdenum anode)...
March 27, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28345870/ultra-fast-separation-and-analysis-of-monoclonal-antibody-aggregates-using-membrane-chromatography
#18
Pedram Madadkar, Umatheny Umatheva, Geoff Hale, Yves Durocher, Raja Ghosh
We discuss a method for rapid and cost-effective analysis of monoclonal antibody (mAb) aggregates. Hydrophobic interaction membrane chromatography, which was previously shown to be highly suitable for such separation and analysis, was used in a recently developed format referred to as laterally-fed membrane chromatography (or LFMC). A stack of rectangular polyvinylidene fluoride (or PVDF) membranes having 0.22 µm pores housed within a modified analytical-scale LFMC device was used for analyzing aggregate types and content in different monoclonal antibody samples...
March 27, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28345817/simultaneous-determination-of-multiple-active-components-in-rat-plasma-using-ultra-fast-liquid-chromatography-with-tandem-mass-spectrometry-and-application-to-a-comparative-pharmacokinetic-study-after-oral-administration-of-suan-zao-ren-decoction-and-suan-zao
#19
Yiyang Du, Bosai He, Qing Li, Jiao He, Di Wang, Kaishun Bi
Suan-Zao-Ren decoction has been used to treat insomnia for many years. In this work, a rapid and sensitive ultra-fast liquid chromatography with tandem mass spectrometry method was first developed and fully validated for the simultaneous quantification of seven main active components, spinosin, mangiferin, neomangiferin, ferulic acid, liquiritin, isoliquiritin and liquiritin apioside in rat plasma. The method was also successfully applied to compare the pharmacokinetics of these active ingredients after oral administration of Suan-Zao-Ren decoction and Suan-Zao-Ren granule...
March 27, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28345814/dapagliflozin-once-daily-plus-exenatide-once-weekly-in-obese-adults-without-diabetes-sustained-reductions-in-bodyweight-glycaemia-and-blood-pressure-over-1-year
#20
Per Lundkvist, Maria J Pereira, Petros Katsogiannos, C David Sjöström, Eva Johnsson, Jan W Eriksson
AIMS: Dapagliflozin and exenatide reduce bodyweight by differing mechanisms. Dual therapy with these agents reduces bodyweight, adipose tissue volume, glycaemia, and systolic blood pressure (SBP) over 24 weeks. Here, we examined these effects over 1 year in obese adults without diabetes. MATERIALS AND METHODS: Obese adults without diabetes (N = 50; aged 18-70 years; body mass index 30-45 kg/m(2) ) initially randomized to double-blind oral dapagliflozin 10 mg once daily plus subcutaneous long-acting exenatide 2 mg once weekly or placebo entered an open-label extension from 24-52 weeks during which all participants received active treatment...
March 27, 2017: Diabetes, Obesity & Metabolism
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