keyword
MENU ▼
Read by QxMD icon Read
search

mechanism action

keyword
https://www.readbyqxmd.com/read/29054054/conformational-analysis-of-the-human-chemokine-receptor-cxcr3
#1
Raffaele Raucci, Andrea Polo, Alfredo Budillon, Giovanni Colonna, Susan Costantini
In the last years, some studies showed the patho-genetic role of CXCR3 bound to its ligands in many human inflammatory diseases and cancers. Thus, the blockage of the CXCR3 interaction site to its ligands is seen as a possible therapeutic target for the treatment of cancer. The presence of flexible regions in the chemokine receptors determines their capability to develop specific mechanisms of action. We have recently focused on the features of the N-terminal region of human CXCR3 free in solution, where we demonstrate the presence of numerous conformational ensembles, dynamically stabilized by H-bonds...
October 17, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29053819/changes-in-immune-and-metabolic-gut-response-in-broilers-fed-%C3%AE-mannanase-in-%C3%AE-mannan-containing-diets
#2
R J Arsenault, J T Lee, R Latham, B Carter, M H Kogut
β-galactomannans found in soy-based broiler feed are known to cause physiological effects that are hypothesized to be related to gut inflammation. Previous studies have shown that the incorporation of β-mannanase in the diet or as a supplement results in improvements to certain performance parameters related to gut health and feed conversion. Using kinome analysis, we characterized the mechanism of β-galactomannan activity and supplementation with β-mannanase on the gut of commercial broilers to understand the mode of action...
September 14, 2017: Poultry Science
https://www.readbyqxmd.com/read/29053799/erythropoietin-induces-homeostatic-plasticity-at-hippocampal-synapses
#3
Raquel B Dias, Tiago M Rodrigues, Diogo M Rombo, Filipa F Ribeiro, Joana Rodrigues, Jennifer McGarvey, Catarina Orcinha, Jeremy M Henley, Ana M Sebastião
The cytokine erythropoietin (EPO) is the master regulator of erythropoiesis. Intriguingly, many studies have shown that the cognitive performance of patients receiving EPO for its hematopoietic effects is enhanced, which prompted the growing interest in the use of EPO-based strategies to treat neuropsychiatric disorders. EPO plays key roles in brain development and maturation, but also modulates synaptic transmission. However, the mechanisms underlying the latter have remained elusive. Here, we show that acute (40-60 min) exposure to EPO presynaptically downregulates spontaneous and afferent-evoked excitatory transmission, without affecting basal firing of action potentials...
July 5, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29053790/the-hippo-signaling-pathway-in-pancreatic-%C3%AE-cells-functions-and-regulations
#4
Amin Ardestani, Kathrin Maedler
Hippo signaling is an evolutionarily conserved pathway that critically regulates development and homeostasis of various tissues in response to a wide range of extracellular and intracellular signals. As an emerging significant player in many diseases, the Hippo pathway is also involved in the pathophysiology of diabetes on the level of the pancreatic islets. Multiple lines of evidence uncover the importance of Hippo signaling in pancreas development as well as in the regulation of β-cell survival, proliferation and regeneration...
October 18, 2017: Endocrine Reviews
https://www.readbyqxmd.com/read/29053785/progranulin-a-new-avenue-towards-the-understanding-and-treatment-of-neurodegenerative-disease
#5
Babykumari P Chitramuthu, Hugh P J Bennett, Andrew Bateman
Progranulin, a secreted glycoprotein, is encoded in humans by the single GRN gene. Progranulin consists of seven and a half, tandemly repeated, non-identical copies of the 12 cysteine granulin motif. Many cellular processes and diseases are associated with this unique pleiotropic factor that include, but are not limited to, embryogenesis, tumorigenesis, inflammation, wound repair, neurodegeneration and lysosome function. Haploinsufficiency caused by autosomal dominant mutations within the GRN gene leads to frontotemporal lobar degeneration, a progressive neuronal atrophy that presents in patients as frontotemporal dementia...
August 18, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29053443/enhancement-of-intercellular-electrical-synchronization-by-conductive-materials-in-cardiac-tissue-engineering
#6
Yu Wu, Liang Guo
OBJECTIVE: cardiac tissue regeneration for the treatment of cardiovascular diseases has been of great research interest. Under the hypothesis that electrical synchronization of cardiac cells can be aided by conductive materials, electrically conductive scaffolds have been frequently used to improve cardiac tissue regeneration. However, theoretical analysis is presently absent in examining the underlying mechanism and rationally guiding the design of these conductive scaffolds. METHODS: here, equivalent-circuit models are proposed, in which two adjacent groups of cardiomyocytes are grown either on a bulk conductive substrate or around conductive nanostructures...
October 15, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/29053434/alpha-gal-inactivated-heart-valve-bioprostheses-exhibit-an-anti-calcification-propensity-similar-to-knockout-tissues
#7
Filippo Naso, Ugo Stefanelli, Edward Buratto, Giovanna Lazzari, Andrea Perota, Cesare Galli, Alessandro Gandaglia
BACKGROUND: Glutaraldehyde (GLA) has been used to crosslink bioprosthetic heart valve (BHVs) tissues to enhance their stability, besides ensuring a satisfactory degree of immunological tolerance. Unfortunately, GLA fixation does not guarantee a complete tissue biocompatibility of BHVs in currently used devices. The interaction between preformed human anti-alpha-Gal antibody and alpha-Gal antigens promotes the calcification of GLA-treated alpha-Gal-positive tissue. Recently, an alarming correlation between the presence of the alpha-Gal epitope and a premature BHVs degeneracy was reported...
October 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29053266/structure-activity-relationships-of-new-natural-product-based-diaryloxazoles-with-selective-activity-against-androgen-receptor-positive-breast-cancer-cells
#8
Andrew J Robles, Shelby McCowen, Shengxin Cai, Michaels Glassman, Francisco Ruiz, Robert H Cichewicz, Stanton F McHardy, Susan L Mooberry
Targeted therapies for ER+/PR+ and HER2-amplified breast cancers have improved patient survival, but there are no therapies for triple negative breast cancers (TNBC) that lack expression of estrogen and progesterone receptors (ER/PR), or amplification or overexpression of HER2. Gene expression profiling of TNBC has identified molecular subtypes and representative cell lines. An extract of the Texas native plant Amyris texana was found to have selective activity against MDA-MB-453 cells, a model of the luminal androgen receptor (LAR) subtype of TNBC...
October 20, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29053142/resolution-of-inflammation-and-sepsis-survival-are-improved-by-dietary-%C3%AE-3-fatty-acids
#9
Andreas Körner, Martin Schlegel, Julia Theurer, Hannes Frohnmeyer, Michael Adolph, Marieke Heijink, Martin Giera, Peter Rosenberger, Valbona Mirakaj
Critical conditions such as sepsis following infection or traumatic injury disturb the complex state of homeostasis that may lead to uncontrolled inflammation resulting in organ failure, shock and death. They are associated with endogenous mediators that control the onset of acute inflammatory response, but the central problem remains the complete resolution of inflammation. Omega-3 enriched lipid emulsions (Ω-3(+) LEs) were used in experimental studies and clinical trials to establish homeostasis, yet with little understanding about their role on the resolution of inflammation and tissue regeneration...
October 20, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29053063/a-patent-review-of-monoacylglycerol-lipase-magl-inhibitors-2013-2017
#10
Carlotta Granchi, Isabella Caligiuri, Filippo Minutolo, Flavio Rizzolio, Tiziano Tuccinardi
Monoacylglycerol lipase is a serine hydrolase that plays a major role in the degradation of the endocannabinoid 2-arachidonoylglycerol. Because of this key role, selective inactivation of MAGL represents an interesting approach to obtain desirable effects in several diseases. Furthermore, MAGL is upregulated in cancer cells and primary tumors and its inhibition in aggressive breast, ovarian, and melanoma cancer cells impairs cell migration, invasiveness, and tumorigenicity. Areas covered: This review covers patent literature on MAGL inhibitors and their applications published from 2013 to 2017...
October 20, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/29052840/crowd-sourcing-of-membrane-fission-how-crowding-of-non-specialized-membrane-bound-proteins-contributes-to-cellular-membrane-fission
#11
REVIEW
Marco M Manni, Jure Derganc, Alenka Čopič
Fission of cellular membranes is ubiquitous and essential for life. Complex protein machineries, such as the dynamin and ESCRT spirals, have evolved to mediate membrane fission during diverse cellular processes, for example, vesicle budding. A new study suggests that non-specialized membrane-bound proteins can induce membrane fission through mass action due to protein crowding. Because up to 2/3 of the mass of cellular membranes is contributed by proteins, membrane protein crowding is an important physiological parameter...
October 20, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/29052836/topical-hemostatics-for-bleeding-control-in-pre-hospital-setting-then-and-now
#12
H Erhan Güven
Massive hemorrhage causes instant and early deaths because of hypovolemia. However, even if the victim makes it to the hospital, hypothermia, metabolic acidosis, and coagulation impairments caused by bleeding pose a great risk for survival. Many topical hemostatic agents are developed for neck, armpit, or groin injuries that are not amenable to tourniquet application and for extremity wounds to be used in conjunction with tourniquets. This paper focuses on those hemostatics that differ based on the action mechanism and are suitable for pre-hospital setting and summarizes the latest recommendations regarding their usage...
September 2017: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/29052614/narp-mediates-antidepressant-like-effects-of-electroconvulsive-seizures
#13
Andrew D Chang, Punit V Vaidya, Edward P Retzbach, Sunho J Chung, Urian Kim, Kathryn Baselice, Kristen Maynard, Alec Stepanian, Melissa Staley, Lan Xiao, Ashley Blouin, Sungho Han, JongAh Lee, Paul F Worley, Kellie L Tamashiro, Barbara L Hempstead, Keri Martinowich, Mary Ann Wilson, Jay M Baraban, Irving M Reti
Growing recognition of persistent cognitive defects associated with electroconvulsive therapy (ECT), a highly effective and commonly used antidepressant treatment, has spurred interest in identifying its mechanism of action to guide development of safer treatment options. However, as repeated seizure activity elicits a bewildering array of electrophysiological and biochemical effects, this goal has remained elusive. We have examined whether deletion of Narp, an immediate early gene induced by electroconvulsive seizures (ECS), blocks its antidepressant efficacy...
October 20, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29052556/forewings-match-the-formation-of-leading-edge-vortices-and-dominate-aerodynamic-force-production-in-revolving-insect-wings
#14
Di Chen, Dmitry Kolomenskiy, Toshiyuki Nakata, Hao Liu
In many flying insects, forewings and hindwings are coupled mechanically to achieve flapping flight synchronously while being driven by action of the forewings. How the forewings and hindwings as well as their morphologies contribute to aerodynamic force production and flight control remains unclear yet. Here we demonstrate that the forewings can produce most of the aerodynamic forces even with the hindwings removed through a computational fluid dynamic study of three revolving insect wing models, which are identical to the wing morphologies and Reynolds numbers of hawkmoth (Manduca sexta), bumblebee (Bombus ignitus) and fruitfly (Drosophila melanogaster)...
October 20, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/29052509/a-yin-yang-1-mir-30a-regulatory-circuit-modulates-autophagy-in-pancreatic-cancer-cells
#15
Chuang Yang, Jing-Jing Zhang, Yun-Peng Peng, Yi Zhu, Ling-Di Yin, Ji-Shu Wei, Wen-Tao Gao, Kui-Rong Jiang, Yi Miao
BACKGROUND: Autophagy is a highly regulated biological process that mediates the degradation of intracellular components. It is required for tumor cell metabolism and homeostasis. Yin-Yang 1 (YY1) has been reported to be involved in autophagy in several carcinomas. However, its role in autophagy in pancreatic cancer, one of the deadliest human malignancies, is unknown. Here, we investigated the function of YY1 in pancreatic cancer cells autophagy and its mechanisms of action. METHODS: The activity of cells undergoing autophagy was assessed using transmission electron microscopy, immunofluorescence, and Western blotting...
October 19, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29052396/-effect-of-wintergreen-oil-on-in-vitro-transdermal-permeation-of-osthole-and-geniposide
#16
Xue-Cheng Gao, Yan Tong
The aim of this study was to investigate the transdermal penetration enhancement effect of wintergreen oil and its action mechanisms. The in vitro transdermal tests were carried out to study the transdermal penetration enhancement effect of wintergreen oil by using osthole and geniposide as the lipophilic and hydriphilic model drugs. Fourier-transform infrared spectroscopy was used to investigate the effect of wintergreen oil on the molecular structure of rat stratum corneum, and the scanning electron microscope was employed to observe the change of rat skin surface after treatment by the oil...
April 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29052380/-action-mechanism-of-total-flavonoids-of-hippophae-rhamnoides-in-treatment-of-myocardial-ischemia-based-on-network-pharmacology
#17
Zhi-Cheng Wei, Dong Tong, Juan Yang, Ke-Hui Zhao, Xian-Li Meng, Yi Zhang
In this study, a network pharmacological screening method was adopted to further study the active ingredients and action mechanism of total flavonoids of Hippophae rhamnoides(TFH) for the treatment of myocardial ischemia. Firstly TCMSP database and PubChem database were searched, and then the data were combined with oral bioavailability and drug analysis to screen flavonoids of H.rhamnoides compounds. Then predictive analysis was conducted for the 7 screened compounds by ChemMapper server.The obtained potential targets were imported into MAS 3...
April 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29052219/pharmacogenomic-discovery-to-function-and-mechanism-breast-cancer-as-a-case-study
#18
Liewei Wang, James Ingle, Richard Weinshilboum
Biomedical research is undergoing rapid change, with the development of a series of analytical omics techniques that are capable of generating Biomedical Big Data. These developments provide an unprecedented opportunity to gain novel insight into disease pathophysiology and mechanisms of drug action and response-but they also present significant challenges. Pharmacogenomics is a discipline within Clinical Pharmacology that has been at the forefront in defining, taking advantage of and dealing with the opportunities and challenges of this aspect of the Post-Genome Project world...
October 20, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29051951/straightforward-synthesis-of-man9-the-relevant-epitope-of-the-high-mannose-oligosaccharide
#19
Javier Ramos-Soriano, M Carmen de la Fuente, Noelia de la Cruz, Rute C Figueiredo, Javier Rojo, José J Reina
The high-mannose oligosaccharide (or its corresponding Man9 epitope) is the most abundant structure present in pathogen envelope glycoproteins. These glycans play a key role in the pathogenesis of several pathogens and also in the communication with the immune system. Understanding the mechanism of action of these glycans requires the access to pure and chemically well-defined structures in reasonable amounts. The synthesis of these complex branched oligosaccharides is not trivial and few syntheses are reported in the literature with several synthetic and purification steps and low overall yields...
October 20, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/29051947/pre-steady-state-kinetic-analysis-of-damage-recognition-by-human-single-strand-selective-monofunctional-uracil-dna-glycosylase-smug1
#20
Alexandra A Kuznetsova, Danila A Iakovlev, Inna V Misovets, Alexander A Ishchenko, Murat K Saparbaev, Nikita A Kuznetsov, Olga S Fedorova
In all organisms, DNA glycosylases initiate base excision repair pathways resulting in removal of aberrant bases from DNA. Human SMUG1 belongs to the superfamily of uracil-DNA glycosylases catalyzing the hydrolysis of the N-glycosidic bond of uridine and uridine lesions bearing oxidized groups at C5: 5-hydroxymethyluridine (5hmU), 5-formyluridine (5fU), and 5-hydroxyuridine (5hoU). An apurinic/apyrimidinic (AP) site formed as the product of an N-glycosylase reaction is tightly bound to hSMUG1, thus inhibiting the downstream action of AP-endonuclease APE1...
October 20, 2017: Molecular BioSystems
keyword
keyword
109270
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"