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https://www.readbyqxmd.com/read/29691296/tryptophan-metabolism-contributes-to-radiation-induced-immune-checkpoint-reactivation-in-glioblastoma
#1
Pravin Kesarwani, Antony Prabhu, Shiva Kant, Praveen Kumar, Stewart F Graham, Katie L Buelow, George D Wilson, Christopher Ryan Miller, Prakash Chinnaiyan
PURPOSE: Immune checkpoint inhibitors designed to revert tumor-induced immune suppression have emerged as potent anti-cancer therapies. Tryptophan metabolism represents an immune checkpoint and targeting this pathway's rate limiting enzyme IDO1 is actively being investigated clinically. Here, we studied the intermediary metabolism of tryptophan metabolism in glioblastoma and evaluated the activity of the IDO1 inhibitor GDC-0919, both alone and in combination with radiation (RT).  Experimental Design: LC/GC-MS and expression profiling was performed for metabolomic and genomic analyses of patient-derived glioma...
April 24, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29690874/optimal-control-of-malaria-combining-vector-interventions-and-drug-therapies
#2
Doran Khamis, Claire El Mouden, Klodeta Kura, Michael B Bonsall
BACKGROUND: The sterile insect technique and transgenic equivalents are considered promising tools for controlling vector-borne disease in an age of increasing insecticide and drug-resistance. Combining vector interventions with artemisinin-based therapies may achieve the twin goals of suppressing malaria endemicity while managing artemisinin resistance. While the cost-effectiveness of these controls has been investigated independently, their combined usage has not been dynamically optimized in response to ecological and epidemiological processes...
April 24, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29689442/ameliorating-mitochondrial-dysfunction-restores-carbon-ion-induced-cognitive-deficits-via-co-activation-of-nrf2-and-pink1-signaling-pathway
#3
Yang Liu, Jiawei Yan, Cao Sun, Guo Li, Sirui Li, Luwei Zhang, Cuixia Di, Lu Gan, Yupei Wang, Rong Zhou, Jing Si, Hong Zhang
Carbon ion therapy is a promising modality in radiotherapy to treat tumors, however, a potential risk of induction of late normal tissue damage should still be investigated and protected. The aim of the present study was to explore the long-term cognitive deficits provoked by a high-linear energy transfer (high-LET) carbon ions in mice by targeting to hippocampus which plays a crucial role in memory and learning. Our data showed that, one month after 4 Gy carbon ion exposure, carbon ion irradiation conspicuously resulted in the impaired cognitive performance, neurodegeneration and neuronal cell death, as well as the reduced mitochondrial integrity, the disrupted activities of tricarboxylic acid cycle flux and electron transport chain, and the depressed antioxidant defense system, consequently leading to a decline of ATP production and persistent oxidative damage in the hippocampus region...
April 14, 2018: Redox Biology
https://www.readbyqxmd.com/read/29689158/synergistically-enhancing-therapeutic-effect-of-radiation-therapy-with-radiation-activatable-and-reactive-oxygen-species-releasing-nanostructures
#4
Kai Cheng, Michael Sano, Cesare H Jenkins, Guanglei Zhang, Don Vernekohl, Wei Zhao, Chenxi Wei, Yan Zhang, Zhe Zhang, Yijin Liu, Zhen Cheng, Lei Xing
Nanoparticle-based radio-sensitizers can amplify the effects of radiation therapy on tumor tissue even at relatively low concentrations while reducing the potential side effects to healthy surrounding tissues. In this study, we investigated a hybrid anisotropic nanostructure, composed of gold (Au) and titanium dioxide (TiO2), as a radio-sensitizer for radiation therapy of triple negative breast cancer (TNBC). In contrast to other gold based radio sensitizers, dumbbell-like Au-TiO2 nanoparticles (DATs) show a synergistic therapeutic effect on radiation therapy, mainly because of strong asymmetric electric coupling between the high atomic number metals and dielectric oxides at their interfaces...
April 24, 2018: ACS Nano
https://www.readbyqxmd.com/read/29687529/lymphatic-imaging-and-intervention-in-a-pediatric-population-anesthetic-considerations
#5
David R Jobes, Lauren A Brown, Yoav Dori, Maxim Itkin, Susan C Nicolson
The recent adoption of an improved lymphatic access technique coupled with Dynamic Contrast-enhanced Magnetic Resonance Lymphangiography has introduced the ability to diagnose and treat severe lymphatic disorders unresponsive to other therapies. All pediatric patients presenting for lymphatic procedures require general anesthesia presenting challenges in managing highly morbid and comorbid conditions both from logistical as well as medical aspects. General anesthesia is used because of the procedural requirement for immobility to accurately place needles and catheters, treat pain secondary to contrast and glue injections, and to accommodate additional procedures...
April 23, 2018: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29686977/a-prototype-exercise-empowerment-mobile-video-game-for-children-with-cancer-and-its-usability-assessment-developing-digital-empowerment-interventions-for-pediatric-diseases
#6
Carol S Bruggers, Sabrina Baranowski, Mathew Beseris, Rachel Leonard, Derek Long, Elizabeth Schulte, Ashton Shorter, Rowan Stigner, Clinton C Mason, Alisa Bedrov, Ian Pascual, Grzegorz Bulaj
Background: Medical advances continue to improve morbidity and mortality of serious pediatric diseases, including cancer, driving research addressing diminished physical and psychological quality of life in children with these chronic conditions. Empowerment enhances resilience and positively influences health, disease, and therapy understanding. We describe the development and usability assessment of a prototype Empower Stars! mobile video game grounded in behavioral and exercise theories with the purpose of coupling physical exercise with empowerment over disease in children with cancer...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29686962/microrna-378-promotes-osteogenesis-angiogenesis-coupling-in-bmmscs-for-potential-bone-regeneration
#7
Bo Zhang, Yali Li, Yang Yu, Jinlong Zhao, Yangzhen Ou, Yu Chao, Binhui Yang, Xiaorui Yu
Bone tissue regeneration was closely associated with osteogenesis and angiogenesis. The harmonious regulation of osteogenetic and angiogenic growth factors would enhance bone regeneration, while the imbalance of that would lead to local excessive bone formation or vascular mass due to exogenous delivery. Therefore, microRNA is believed to regulate multiple metabolism progress through endogenous signaling pathways on the gene level. In this work, we identified microRNA 378 as a positive regulator of osteogenesis and angiogenesis simultaneously and also observed an increase of microRNA 378 than control in human bone marrow mesenchymal stem cells (hBMMSCs) after osteoblast induction...
2018: Analytical Cellular Pathology (Amsterdam)
https://www.readbyqxmd.com/read/29686402/targeting-glp-1-receptor-trafficking-to-improve-agonist-efficacy
#8
Ben Jones, Teresa Buenaventura, Nisha Kanda, Pauline Chabosseau, Bryn M Owen, Rebecca Scott, Robert Goldin, Napat Angkathunyakul, Ivan R Corrêa, Domenico Bosco, Paul R Johnson, Lorenzo Piemonti, Piero Marchetti, A M James Shapiro, Blake J Cochran, Aylin C Hanyaloglu, Asuka Inoue, Tricia Tan, Guy A Rutter, Alejandra Tomas, Stephen R Bloom
Glucagon-like peptide-1 receptor (GLP-1R) activation promotes insulin secretion from pancreatic beta cells, causes weight loss, and is an important pharmacological target in type 2 diabetes (T2D). Like other G protein-coupled receptors, the GLP-1R undergoes agonist-mediated endocytosis, but the functional and therapeutic consequences of modulating GLP-1R endocytic trafficking have not been clearly defined. Here, we investigate a series of biased GLP-1R agonists with variable propensities for GLP-1R internalization and recycling...
April 23, 2018: Nature Communications
https://www.readbyqxmd.com/read/29684044/oxidized-phosphatidylcholines-are-produced-in-renal-ischemia-reperfusion-injury
#9
Zahra Solati, Andrea L Edel, Yue Shang, Karmin O, Amir Ravandi
BACKGROUND: The aim of this study was to determine the individual oxidized phosphatidylcholine (OxPC) molecules generated during renal ischemia/ reperfusion (I/R) injury. METHODS: Kidney ischemia was induced in male Sprague-Dawley rats by clamping the left renal pedicle for 45 min followed by reperfusion for either 6h or 24h. Kidney tissue was subjected to lipid extraction. Phospholipids and OxPC species were identified and quantitated using liquid chromatography coupled to electrospray ionization tandem mass spectrometry using internal standards...
2018: PloS One
https://www.readbyqxmd.com/read/29682781/integrative-systemic-therapy-lessons-on-collaboration-and-training-for-the-21st-century
#10
Nathan R Hardy, Matthew W Brosi, Kami L Gallus
The field of couple, marital, and family therapy (CMFT) is at an important juncture of identity development and synthesis. Integrative Systemic Therapy (IST) is a problem-centered metaframeworks approach that meets the growing needs of family therapists working with diverse and complex family systems and restores the field to its original focus on collaboration. This paper describes the process by which IST developed featuring anecdotes from live interviews with the founders. We briefly outline IST's theoretical pillars and the essential way IST practitioners deliver treatment including a blueprint for therapy...
April 22, 2018: Journal of Marital and Family Therapy
https://www.readbyqxmd.com/read/29681970/-k-nearest-neighbor-algorithm-coupled-with-metabonomics-to-study-the-therapeutic-mechanism-of-sendeng-4-in-adjuvant-induced-rheumatoid-arthritis-rat
#11
Xiye Wang, Dan Li, Mingyang Jiang, Zhili Pei, Liang Xu
As a traditional Mongolian medicine, Sendeng-4 (SD) has been widely used to treat rheumatoid arthritis (RA) in Inner Mongolia and exhibits a good curative effect. Unfortunately, due to geographical factors, it is difficult to popularize this drug throughout the whole country, and the mechanism of action of SD has been unclear. In this study, a serum metabolite profile analysis was performed to identify potential biomarkers associated with adjuvant-induced RA and investigate the mechanism of action of SD. Ultraperformance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) was performed for the metabonomics analysis...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29681886/importance-of-collateralization-in-patients-with-large-artery-intracranial-occlusive-disease-long-term-longitudinal-assessment-of-cerebral-hemodynamic-function
#12
Larissa McKetton, Lakshmikumar Venkatraghavan, Julien Poublanc, Olivia Sobczyk, Adrian P Crawley, Casey Rosen, Frank L Silver, James Duffin, Joseph A Fisher, David J Mikulis
Patients with large artery intracranial occlusive disease (LAICOD) are at risk for both acute ischemia and chronic hypoperfusion. Collateral circulation plays an important role in prognosis, and imaging plays an essential role in diagnosis, treatment planning, and prognosis of patients with LAICOD. In addition to standard structural imaging, assessment of cerebral hemodynamic function is important to determine the adequacy of collateral supply. Among the currently available methods of assessment of cerebral hemodynamic function, measurement of cerebrovascular reactivity (CVR) using blood oxygen level-dependent (BOLD) MRI and precisely controlled CO2 has shown to be a safe, reliable, reproducible, and clinically useful method for long-term assessment of patients...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29680465/treatment-strategies-and-cumulative-live-birth-rates-in-who-ii-ovulation-disorders
#13
Sanne C Braam, Jan Peter de Bruin, Erato T I A Buisman, Monique Brandes, Willianne L D M Nelen, Jesper M J Smeenk, Jan Willem van der Steeg, Ben Willem J Mol, Carl J C M Hamilton
OBJECTIVE: To assess the live birth rate in women with WHO II anovulation and the proportion of women that need second or third line treatments if the initial therapy fails. STUDY DESIGN: In this multicenter cohort study we included couples with unfulfilled child wish who were referred to three fertility clinics in the Netherlands and selected women with a WHO II ovulation disorder as the only final infertility diagnosis (n = 468). RESULTS: The cumulative live birth rate of the total group was 82% (383/468)...
April 10, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29680244/dynamical-behavior-of-somatostatin-14-and-its-cyclic-analogues-as-analyzed-in-bulk-and-on-plasmonic-silver-nanoparticles
#14
Belén Hernández, Yves-Marie Coïc, Eduardo López-Tobar, Santiago Sanchez-Cortes, Bruno Baron, Fernando Pflüger, Sergei G Kruglik, Régis Cohen, Mahmoud Ghomi
Primarily known as the inhibitor of growth hormone release, the role of somatostatin in many other inhibiting activities upon binding to its five G-protein-coupled receptors has been elucidated. Because of the short half-life of somatostatin, a number of synthetic analogues were elaborated for this peptide hormone. Herein, after recalling the main somatostatin therapeutic interests, we present the dynamical behavior of somatostatin-14 and its two currently used synthetic cyclic analogues, octreotide and pasireotide...
2018: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/29678285/pharmacogenetics-of-g-protein-coupled-receptors-variants-fsh-receptor-and-infertility-treatment
#15
REVIEW
Daniele Santi, Francesco Potì, Manuela Simoni, Livio Casarini
Infertility treatment may represent a paradigmatic example of precision medicine. Follicle-stimulating hormone (FSH) has been proposed as a valuable therapeutic option both in males and in females, even if a standardized approach is far to be established. To date, several genetic mutations as well as polymorphisms have been demonstrated to significantly affect the pathophysiology of FSH-FSH receptor (FSHR) interaction, although the underlying molecular mechanisms remain unclear. This review aims to highlight possible aspects of FSH therapy that could benefit from a pharmacogenetic approach, providing an up-to-date overview of the variability of the response to FSH treatment in both sexes...
April 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29678284/aberrant-g-protein-coupled-hormone-receptor-in-adrenal-diseases
#16
REVIEW
Matthieu St-Jean, Nada El Ghorayeb, Isabelle Bourdeau, André Lacroix
The regulation of cortisol or aldosterone production when ACTH of pituitary origin or the renin-angiotensin systems are suppressed in primary adrenal Cushing's syndrome or in primary aldosteronism is exerted by diverse genetic and molecular mechanisms. In addition to recently identified mutations in various genes implicated in the cyclic AMP or ion channel pathways, steroidogenesis is not really autonomous as it is frequently regulated by the aberrant adrenocortical expression of diverse hormone receptors, particularly G-protein coupled hormone receptors (GPCR) which can substitute for the normal function of ACTH or angiotensin-II...
April 2018: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29677491/the-allergen-der-p3-from-house-dust-mite-stimulates-store-operated-ca-2-channels-and-mast-cell-migration-through-par4-receptors
#17
Yu-Ping Lin, Charmaine Nelson, Holger Kramer, Anant B Parekh
The house dust mite is the principal source of perennial aeroallergens in man. How these allergens activate innate and adaptive immunity is unclear, and therefore, there are no therapies targeting mite allergens. Here, we show that house dust mite extract activates store-operated Ca2+ channels, a common signaling module in numerous cell types in the lung. Activation of channel pore-forming Orai1 subunits by mite extract requires gating by STIM1 proteins. Although mite extract stimulates both protease-activated receptor type 2 (PAR2) and PAR4 receptors, Ca2+ influx is more tightly coupled to the PAR4 pathway...
April 19, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29676908/fluorine-grafted-cu7s4-au-heterodimers-for-multimodal-imaging-guided-photothermal-therapy-with-high-penetration-depth
#18
Jiabin Cui, Rui Jiang, Chang Guo, Xilin Bai, Suying Xu, Leyu Wang
We report the multifunctional nanocomposites (NCs) consisting of 19F-moieties grafted Cu7S4-Au nanoparticles (NPs) through click chemistry for sensitive and negligible background 19F-magnetic resonance imaging (19F-MRI) and computed tomography (CT) imaging guided photothermal therapy. The localized surface plasmon resonance (LSPR) peak can be reasonably tuned to the in vivo transparent window (800-900 nm) by coupling Au NPs (<10 nm, LSPR 530 nm) with Cu7S4 NPs (<15 nm, LSPR 1500 nm) into the Cu7S4-Au heterodimers...
April 20, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29676164/the-intimate-partner-flooding-scale
#19
Heather M Foran, Michael Lorber, Jill Malik, Richard E Heyman, Amy M Smith Slep
Dysfunctional conflict resolution behaviors in couples have been long recognized as markers of relationship maladjustment and are, consequently, frequent targets of couple therapy. The process of flooding may play a role. Flooding is the subjective sense of being overwhelmed by the partner's negative affect, which is perceived as unexpected and intense, and feeling as though one's information processing is impaired. It has been theorized that flooding is so aversive as to lead to maladaptive conflict behaviors (e...
April 1, 2018: Assessment
https://www.readbyqxmd.com/read/29675398/metabolic-reprogramming-during-multidrug-resistance-in-leukemias
#20
Raphael Silveira Vidal, Julia Quarti, Franklin D Rumjanek, Vivian M Rumjanek
Cancer outcome has improved since introduction of target therapy. However, treatment success is still impaired by the same drug resistance mechanism of classical chemotherapy, known as multidrug resistance (MDR) phenotype. This phenotype promotes resistance to drugs with different structures and mechanism of action. Recent reports have shown that resistance acquisition is coupled to metabolic reprogramming. High-gene expression, increase of active transport, and conservation of redox status are one of the few examples that increase energy and substrate demands...
2018: Frontiers in Oncology
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