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https://www.readbyqxmd.com/read/29346561/floricolin-c-elicits-intracellular-ros-accumulation-and-disrupts-mitochondria-to-exert-fungicidal-action
#1
Ming Zhang, Wenqiang Chang, Hongzhuo Shi, Ying Li, Sha Zheng, Wei Li, Hongxiang Lou
Candida albicans, one most prevalent fungal pathogen, causes severe mucosal and invasive infections in predisposed individuals. The rise of fungal infection and drug-resistance demands the development of novel antifungal agents. In this study, we observed that floricolin C (FC), a p-terphenyl pigment from an endolichenic fungus, killed C. albicans cells at planktonic state or within biofilms through reactive oxygen species (ROS) accumulation. Further test revealed that FC could directly damage the mitochondria to cause ROS accumulation...
January 15, 2018: FEMS Yeast Research
https://www.readbyqxmd.com/read/29344561/self-expandable-metal-stent-placement-in-a-child-for-treatment-of-achalasia-after-failed-heller-myotomy
#2
Roberto Gugig, Guillermo Muñoz Jurado, Clifton Huang, Roberto Oleas, Carlos Robles-Medranda
Background and study aims  Childhood achalasia treatment remains inconclusive. What is next after myotomy failure? Repeated pneumatic-dilation put patients at greater risk of perforation with possible symptom recurrence. We report on a 12-year-old patient with a 1-year history of achalasia whom underwent Heller myotomy with fundoplication and recurred with symptoms 1 week after surgery. Pneumatic dilatation was considered but not done because of the risk of esophageal perforation. The decision was made to place a fully covered self-expanding metallic stent (FC-SEMS) for 3 months, which resolved the stenosis as confirmed by esophagram...
January 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29344184/therapeutic-effects-of-adenovirus-mediated-cd-and-nis-expression-combined-with-na131i-5-fc-on-human-thyroid-cancer
#3
Meng-Hui Yuan, Long-Xiao Wei, Run-Suo Zhou, Hai-Feng Xu, Jun-Yan Wang, Qian-Rong Bai
Thyroid cancer is the most common type of malignant endocrine tumor diagnosed. Previous studies have indicated that gene therapy is the most promising and effective therapeutic method for thyroid cancer. Therefore, in the present study, Na131I/5-fluorocytosine (5-FC) treatment was combined with cytosine deaminase (CD, encoded by the CDA gene) and sodium iodide symporter (NIS, encoded by the SLC5A5 gene) to act together as a therapeutic tool for thyroid cancer. The present study explored the combined cytotoxic effects of adenovirus-mediated CD and NIS under the control of the progression elevated gene-3 (PEG-3) promoter (Ad-PEG-3-CD-NIS) with Na131I/5-FC against the human thyroid cancer TT cell line in vitro...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29342085/development-of-a-region-specific-physiologically-based-pharmacokinetic-brain-model-to-assess-hippocampus-and-frontal-cortex-pharmacokinetics
#4
Zaril Zakaria, Raj Badhan
Central nervous system drug discovery and development is hindered by the impermeable nature of the blood-brain barrier. Pharmacokinetic modeling can provide a novel approach to estimate CNS drug exposure; however, existing models do not predict temporal drug concentrations in distinct brain regions. A rat CNS physiologically based pharmacokinetic (PBPK) model was developed, incorporating brain compartments for the frontal cortex (FC), hippocampus (HC), "rest-of-brain" (ROB), and cerebrospinal fluid (CSF). Model predictions of FC and HC Cmax, tmax and AUC were within 2-fold of that reported for carbamazepine and phenytoin...
January 17, 2018: Pharmaceutics
https://www.readbyqxmd.com/read/29341441/organic-microcrystal-vibronic-lasers-with-full-spectrum-tunable-output-beyond-the-franck-condon-principle
#5
Yong Sheng Zhao, Haiyun Dong, Chunhuan Zhang, Yuan Liu, Yongli Yan, Fengqin Hu
The very broad emission bands of organic semiconductor materials are, in theory, suitable for achieving versatile solid state lasers; however, most of organic materials only lase at short wavelength corresponding to the 0-1 transition governed by the Franck-Condon (FC) principle. Here we develop a strategy to overcome the limit of FC principle for tailoring the output of microlasers over a wide range based on the controlled vibronic emission of organic materials at microcrystal state. For the first time, the output wavelength of organic lasers is tailored across all vibronic (0-1, 0-2, 0-3, and even 0-4) bands spanning the entire emission spectrum...
January 17, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29341320/spatiotemporal-metabolic-and-therapeutic-characterization-of-altered-functional-connectivity-in-major-depressive-disorder
#6
Jintao Sheng, Yuedi Shen, Yanhua Qin, Lei Zhang, Binjia Jiang, Yaoyao Li, Luoyi Xu, Wei Chen, Jinhui Wang
Although imbalanced functional integration has been increasingly reported in major depressive disorder (MDD), there still lacks a general framework to characterize common characteristic and origin shared by the integrative disturbances. Here we examined spatial selectivity, temporal uniqueness, metabolic basis, and therapeutic response of altered functional connectivity (FC) in MDD by analyzing both cross-sectional and longitudinal multimodal functional magnetic resonance imaging data from 35 patients and 34 demographically matched healthy controls...
January 17, 2018: Human Brain Mapping
https://www.readbyqxmd.com/read/29340635/nutrient-digestibility-response-to-sugarcane-bagasse-addition-and-corn-particle-size-in-normal-and-high-na-diets-for-broilers
#7
S K Kheravii, R A Swick, M Choct, S-B Wu
Improving diet digestibility is important to the broiler industry. Therefore, this study focused on optimizing the physical structure of feed ingredients and addition of dietary fiber as strategies to improve nutrient digestibility in low and high sodium diets. A total of 672 day-old Ross 308 male broilers was allocated to 48 pens using a 2 × 2 × 2 factorial arrangement of treatments with 2 particle sizes of corn (coarse 3,576 μm or fine 1,113 μm geometric mean diameter), 2 levels of sugarcane bagasse (SB) (0 or 2%), and 2 levels of Na (0...
January 11, 2018: Poultry Science
https://www.readbyqxmd.com/read/29340080/inhibition-of-tumor-necrosis-factor-signaling-attenuates-renal-immune-cell-infiltration-in-experimental-membranous-nephropathy
#8
Yen-Sung Huang, Shin-Huei Fu, Kuo-Cheng Lu, Jin-Shuen Chen, Hsin-Yi Hsieh, Huey-Kang Sytwu, Chia-Chao Wu
Idiopathic membranous nephropathy (MN) is an autoimmune-mediated glomerulonephritis and the most common cause of idiopathic nephrotic syndrome in adult humans. A tumor necrosis factor α (TNF-α)-mediated inflammatory response via TNF receptor 1 (TNFR1) and TNFR2 has been proposed as a pathogenic factor. In this study, we assessed the therapeutic response to blocking TNF signaling in experimental MN. Murine MN was induced experimentally by cationic bovine serum albumin (cBSA); phosphate-buffered saline was used in control mice...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29338267/theory-for-the-liquid-liquid-phase-separation-in-aqueous-antibody-solutions
#9
Miha Kastelic, Vojko Vlachy
This study presents the theory for liquid--liquid phase separation for systems of molecules modeling monoclonal antibodies. Individual molecule is depicted as an assembly of seven hard spheres, organized to mimic the Y--shaped antibody. We consider the antibody--antibody interactions either through Fab, Fab' (two Fab fragments may be different), or Fc domain. Interaction between these three domains of the molecule (hereafter denoted as A, B, and C, respectively) is modeled by a short--range square--well attraction...
January 16, 2018: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29338152/generation-and-characterization-of-siglec-f-specific-monoclonal-antibodies
#10
Sima Shahmohammadi-Farid, Roya Ghods, Mahmood Jeddi-Tehrani, Ali-Ahmad Bayat, Nazanin Mojtabavi, Alireza Razavi, Amir-Hassan Zarnani
Siglec-F (SF) is a surface glycoprotein expressed by mouse eosinophils and induces caspase- and mitochondria-dependent apoptosis after engagement with its cognate ligand or specific antibodies. This targeting eosinophils by monoclonal antibodies may help diverse diseases associated with increased frequency of eosinophils including allergy and asthma. In this paper, production of murine and rat monoclonal antibodies (mAbs) against Siglec-F has been addressed. Balb/c mice were immunized with siglec-F1 (SF1) and siglec-F2 (SF2) synthetic peptides conjugated to a carrier protein...
December 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29337626/comparative-analysis-of-pasteurella-multocida-isolates-from-acute-and-chronic-fowl-cholera-cases-in-hungary-during-the-period-2005-through-2010
#11
Boglárka Sellyei, Ákos Thuma, Dmitriy Volokhov, Zsuzsanna Varga
Fowl cholera (FC) is a highly contagious and economically important disease of poultry worldwide. This study was performed on 218 Pasteurella multocida isolates collected from separated breeding farms or backyards with acute and chronic FC cases in multiple localities across Hungary during the period 2005-2010. All isolates were characterized by a broad range of biochemical, serological, and molecular methods, as well as their antibiotic susceptibility to aminoglycosides (A), macrolides (M), penicillins (P), quinolones (Q), cephalosporins, sulphonamides (S), and tetracyclines (T) was determined...
December 2017: Avian Diseases
https://www.readbyqxmd.com/read/29337229/protective-effect-of-flavonoids-from-cyclocarya-paliurus-leaves-against-carbon-tetrachloride-induced-acute-liver-injury-in-mice
#12
Jianhua Xie, Wenjie Wang, Caijun Dong, Lixin Huang, Hui Wang, Chang Li, Shaoping Nie, Mingyong Xie
Cyclocarya paliurus (Batal.) Iljinskaja (C. paliurus), known locally as 'sweet tea tree', is commonly cultivated in China. Flavonoids from Cyclocarya paliurus (Batal.) Iljinskaja (FC) is reported to exhibit multiple biological effects, including anti-inflammatory, anti-oxidant and anti-diabetic activities. However, their influence on carbon tetrachloride (CCl4)-induced acute liver injury remains unclear. This study was designed to investigate the hepatoprotective effect of total flavonoids from C. paliurus leaves...
January 11, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29336991/sirp%C3%AE-cd47-immune-checkpoint-blockade-in-anticancer-therapy
#13
REVIEW
André Veillette, Jun Chen
Inhibitory immune checkpoint blockade has been one of the most significant advances in anticancer therapy of the past decade. Research so far has largely focused on improving adaptive immune functions, but recent studies have indicated that the signal-regulatory protein (SIRP)α-CD47 pathway, a phagocytosis checkpoint in macrophages and other innate immune cells, may be an interesting therapeutic target. Here, we summarize current knowledge about SIRPα-CD47 blockade, and highlight key issues for future investigations...
January 11, 2018: Trends in Immunology
https://www.readbyqxmd.com/read/29336368/glycosaminoglycan-content-of-the-lateral-compartment-cartilage-in-knees-conforming-to-the-indications-for-oxford-medial-unicompartmental-knee-arthroplasty
#14
Fu-Yin Wan, Ju-An Yue, Wan-Shou Guo, Lu-Yao Ma, Ran Yan, Qi-Dong Zhang, Li-Ming Cheng
BACKGROUND: The quality of the lateral compartment cartilage is important to preoperative evaluation and prognostic prediction of unicompartmental knee arthroplasty (UKA). Delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) enables noninvasive assessment of glycosaminoglycan (GAG) content in cartilage. This study aimed to determine the GAG content of the lateral compartment cartilage in knees scheduled to undergo Oxford medial UKA. METHODS: From December 2016 to May 2017, twenty patients (20 osteoarthritic knees) conforming to the indications for Oxford medial UKA were included as the osteoarthritis (OA) group, and 20 healthy volunteers (20 knees) paired by sex, knee side, age (±3 years), and body mass index (BMI) (±3 kg/m2) were included as the control group...
January 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29336182/the-effects-of-fermented-milk-containing-lactococcus-lactis-subsp-cremoris-fc-on-defaecation-in-healthy-young-japanese-women-a-double-blind-placebo-controlled-study
#15
Kaoru Ozaki, Toshinari Maruo, Hideki Kosaka, Mari Mori, Hideki Mori, Yukio Yamori, Toshiya Toda
The objective of this double-blind, placebo-controlled study was to elucidate the effects of fermented milk containing Lactococcus lactis subsp. cremoris FC (FC) on defaecation in healthy young women. We included 31 women (18-31 years old) who were randomly selected into two groups. Subjects in the test group consumed fermented milk containing FC, while subjects in the placebo group consumed non-fermented gelled milk. In the test group, defaecation frequency (both in days and times per week) and stool volume significantly increased during the consumption of fermented milk containing FC compared with before consumption...
January 16, 2018: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29335533/fc-modified-exenatide-loaded-nanoparticles-for-oral-delivery-to-improve-hypoglycemic-effects-in-mice
#16
Yanan Shi, Xinfeng Sun, Liping Zhang, Kaoxiang Sun, Keke Li, Youxin Li, Qiang Zhang
To improve the oral efficiency of exenatide, we prepared polyethylene glycol-poly(lactic-co-glycolic acid) (PEG-PLGA) NPs modified with Fc (NPs-Fc) for exenatide oral delivery. Exenatide was encapsulated into the NPs by the w/o/w emulsion-solvent evaporation method. The particle size of the NPs-Fc was approximately 30 nm larger than that of the unmodified NPs with polydispersity indices in a narrow range (PDIs; PDI < 0.3) as detected by DLS, and the highest encapsulation efficiency of exenatide in the NPs was greater than 80%...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29334981/production-of-highly-and-broad-range-specific-monoclonal-antibodies-against-hemagglutinin-of-h5-subtype-avian-influenza-viruses-and-their-differentiation-by-mass-spectrometry
#17
Violetta Sączyńska, Anna Bierczyńska-Krzysik, Violetta Cecuda-Adamczewska, Piotr Baran, Anna Porębska, Katarzyna Florys, Marcin Zieliński, Grażyna Płucienniczak
BACKGROUND: The highly pathogenic avian influenza viruses of the H5 subtype, such as the H5N1 viral strains or the novel H5N8 and H5N2 reassortants, are of both veterinary and public health concern worldwide. To combat these viruses, monoclonal antibodies (mAbs) against H5 hemagglutinin (HA) play a significant role. These mAbs are effective diagnostic and therapeutic agents and powerful tools in vaccine development and basic scientific research. The aim of this study was to obtain diagnostically valuable mAbs with broad strain specificity against H5-subtype AIVs...
January 15, 2018: Virology Journal
https://www.readbyqxmd.com/read/29333477/notch-ligand-binding-assay-using-flow-cytometry
#18
Shweta Varshney, Pamela Stanley
Notch signaling is an evolutionary conserved signaling pathway that plays an indispensable role during development, and in the maintenance of homeostatic processes, in a wide variety of tissues (Kopan, 2012; Hori et al., 2013). The multifaceted roles of Notch signaling are stringently regulated at different levels. One of the most important aspects of regulation is the binding of different Notch ligands to each Notch receptor (NOTCH1-NOTCH4). Canonical ligands Delta or Serrate (in Drosophila), and Delta-like (DLL1 and DLL4) or Jagged (JAG1 and JAG2) (in mammals), are transmembrane glycoproteins...
December 5, 2017: Bio-protocol
https://www.readbyqxmd.com/read/29333082/a-fcgr3a-polymorphism-predicts-anti-drug-antibodies-in-chronic-inflammatory-bowel-disease-patients-treated-with-anti-tnf
#19
Patricia Romero-Cara, Daniel Torres-Moreno, José Pedregosa, Juan Antonio Vílchez, María Sergia García-Simón, Guadalupe Ruiz-Merino, Senador Morán-Sanchez, Pablo Conesa-Zamora
BACKGROUND: The production of anti-drug antibodies (ADAs) against IgG monoclonal antibodies (mAbs) targeting tumour necrosis factor (TNF) is an important cause of loss of response to anti-TNF mAbs in patients with inflammatory bowel diseases (IBD) such as Crohn's disease (CD) and ulcerative colitis (UC). Since receptors for the Fc portion of IgG (FCGRs) are involved in the degradation of IgG complexes, we hypothesised that a polymorphism in FCGR3A (V158F; rs396991) gene could be involved in anti-TNF ADA generation and treatment resistance...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29331449/quantifying-axonal-responses-in-patient-specific-models-of-subthalamic-deep-brain-stimulation
#20
Kabilar Gunalan, Bryan Howell, Cameron C McIntyre
Medical imaging has played a major role in defining the general anatomical targets for deep brain stimulation (DBS) therapies. However, specifics on the underlying brain circuitry that is directly modulated by DBS electric fields remain relatively undefined. Detailed biophysical modeling of DBS provides an approach to quantify the theoretical responses to stimulation at the cellular level, and has established a key role for axonal activation in the therapeutic mechanisms of DBS. Estimates of DBS-induced axonal activation can then be coupled with advances in defining the structural connectome of the human brain to provide insight into the modulated brain circuitry and possible correlations with clinical outcomes...
January 10, 2018: NeuroImage
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