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visual pharmacology

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https://www.readbyqxmd.com/read/28426542/the-preliminary-effects-of-massage-and-inhalation-aromatherapy-on-chemotherapy-induced-acute-nausea-and-vomiting-a-quasi-randomized-controlled-pilot-trial
#1
Pinar Zorba, Leyla Ozdemir
BACKGROUND: Despite pharmacological treatment, chemotherapy-induced nausea and vomiting (CINV) are observed in patients. OBJECTIVE: This quasi-randomized controlled pilot study evaluated the feasibility and preliminary effects of massage and inhalation aromatherapies on chemotherapy-induced acute nausea/vomiting. METHODS: Seventy-five patients with breast cancer were randomly grouped into 1 of 3 groups: massage (n = 25), inhalation (n = 25), and control (n = 25)...
April 20, 2017: Cancer Nursing
https://www.readbyqxmd.com/read/28425969/the-pharmacological-effects-of-lutein-and-zeaxanthin-on-visual-disorders-and-cognition-diseases
#2
REVIEW
Yu-Ping Jia, Lei Sun, He-Shui Yu, Li-Peng Liang, Wei Li, Hui Ding, Xin-Bo Song, Li-Juan Zhang
Lutein (L) and zeaxanthin (Z) are dietary carotenoids derived from dark green leafy vegetables, orange and yellow fruits that form the macular pigment of the human eyes. It was hypothesized that they protect against visual disorders and cognition diseases, such as age-related macular degeneration (AMD), age-related cataract (ARC), cognition diseases, ischemic/hypoxia induced retinopathy, light damage of the retina, retinitis pigmentosa, retinal detachment, uveitis and diabetic retinopathy. The mechanism by which they are involved in the prevention of eye diseases may be due their physical blue light filtration properties and local antioxidant activity...
April 20, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28420179/systematic-understanding-of-the-mechanism-of-salvianolic-acid-a-via-computational-target-fishing
#3
Shao-Jun Chen, Ming-Chao Cui
Salvianolic acid A (SAA) is one of the most abundant water-soluble and potent anti-oxidative compounds isolated from Danshen, a traditional Chinese medicine. A systematic overview of its mechanism of action is yet to be performed. In the present study, the druggability of SAA was measured using the TCMSP server, and potential targets of SAA were identified by PharmMapper and DRAR-CPI. Intersecting targets were then assessed by GeneMANIA and GO pathway analysis, and drug-target-pathway networks were constructed to give a visual view...
April 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28419637/self-reported-prevalence-description-and-management-of-pain-in-adults-with-haemophilia-methods-demographics-and-results-from-the-pain-functional-impairment-and-quality-of-life-p-fiq-study
#4
M Witkop, A Neff, T W Buckner, M Wang, K Batt, C M Kessler, D Quon, L Boggio, M Recht, K Baumann, R Z Gut, D L Cooper, C L Kempton
INTRODUCTION: Haemophilia is characterized by frequent haemarthrosis, leading to acute/chronic joint pain. AIM: To assess self-reported prevalence, description and management of pain in adult males with mild-to-severe haemophilia and history of joint pain/bleeding. METHODS: Participants completed a pain survey and five patient-reported outcome instruments assessing pain, functional impairment and health-related quality of life (HRQoL). RESULTS: Of 381 participants enrolled, median age was 34 years; 77% had haemophilia A, 71% had severe disease and 65% were overweight/obese...
April 16, 2017: Haemophilia: the Official Journal of the World Federation of Hemophilia
https://www.readbyqxmd.com/read/28412452/enhancement-of-dissolution-rate-through-eutectic-mixture-and-solid-solution-of-posaconazole-and-benznidazole
#5
Camila Bezerra Melo Figueirêdo, Daniela Nadvorny, Amanda Carla Quintas de Medeiros Vieira, José Lamartine Soares Sobrinho, Pedro José Rolim Neto, Ping I Lee, Monica Felts de La Roca Soares
Benznidazole (BNZ), the only commercialized antichagasic drug, and the antifungal compound posaconazole (PCZ) have shown synergistic action in the therapy of Chagas disease, however both active pharmaceutical ingredients (APIs) exhibit low aqueous solubility potentially limiting their bioavailability and therapeutic efficacy. In this paper, we report for the first time the formation of a eutectic mixture as well as an amorphous solid solution of PCZ and BNZ (at the same characteristic ratio of 80:20wt%), which provided enhanced solubility and dissolution rate for both APIs...
April 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28406870/the-effect-of-acupressure-applied-to-point-li4-on-perceived-labor-pains
#6
Yasemin Hamlacı, Saadet Yazici
Controlling labor pain is one of the basic goals for caregivers during the birthing process. There are many pharmacological and nonpharmacological methods that are used for controlling pain and helping the mother to cope with pain and have a favorable labor. The study was planned as a randomized, controlled experimental study to detect the effect of acupressure applied to Point LI4 on perceived labor pains. The study sample comprised 88 pregnant women (44 acupressure group, 44 control group), who complied with the study guidelines, agreed with the conditions of the study, and signed the informed consent...
May 2017: Holistic Nursing Practice
https://www.readbyqxmd.com/read/28403743/nonclinical-profile-of-blz-100-a-tumor-targeting-fluorescent-imaging-agent
#7
Julia Parrish-Novak, Kelly Byrnes-Blake, Narine Lalayeva, Stefanie Burleson, Janean Fidel, Rhonda Gilmore, Pamela Gayheart-Walsten, Gregory A Bricker, William J Crumb, K S Tarlo, Stacey Hansen, Valorie Wiss, Errol Malta, William S Dernell, James M Olson, Dennis M Miller
BLZ-100 is a single intravenous use, fluorescent imaging agent that labels tumor tissue to enable more complete and precise surgical resection. It is composed of a chlorotoxin peptide covalently bound to the near-infrared fluorophore indocyanine green. BLZ-100 is in clinical development for intraoperative visualization of human tumors. The nonclinical safety and pharmacokinetic (PK) profile of BLZ-100 was evaluated in mice, rats, canines, and nonhuman primates (NHP). Single bolus intravenous administration of BLZ-100 was well tolerated, and no adverse changes were observed in cardiovascular safety pharmacology, PK, and toxicology studies in rats and NHP...
March 2017: International Journal of Toxicology
https://www.readbyqxmd.com/read/28403143/a-novel-mechanism-of-cone-photoreceptor-adaptation
#8
Marcus H C Howlett, Robert G Smith, Maarten Kamermans
An animal's ability to survive depends on its sensory systems being able to adapt to a wide range of environmental conditions, by maximizing the information extracted and reducing the noise transmitted. The visual system does this by adapting to luminance and contrast. While luminance adaptation can begin at the retinal photoreceptors, contrast adaptation has been shown to start at later stages in the retina. Photoreceptors adapt to changes in luminance over multiple time scales ranging from tens of milliseconds to minutes, with the adaptive changes arising from processes within the phototransduction cascade...
April 2017: PLoS Biology
https://www.readbyqxmd.com/read/28401487/perception-in-attention-deficit-hyperactivity-disorder
#9
REVIEW
Anselm B M Fuermaier, Philippa Hüpen, Stefanie M De Vries, Morgana Müller, Francien M Kok, Janneke Koerts, Joost Heutink, Lara Tucha, Manfred Gerlach, Oliver Tucha
A large body of research demonstrated that individuals with attention deficit hyperactivity disorder (ADHD) suffer from various neuropsychological deficits. In contrast, less is known and only divergent evidence exists on perceptual functions of individuals with ADHD. This is problematic as neuropsychological and perceptual functions are closely interrelated and are often difficult to disentangle in behavioral assessments. This study presents the conduct and results of a systematic literature review on perceptual functions in children and adults with ADHD...
April 11, 2017: Attention Deficit and Hyperactivity Disorders
https://www.readbyqxmd.com/read/28400476/gad1-upregulation-programs-aggressive-features-of-cancer-cell-metabolism-in-the-brain-metastatic-microenvironment
#10
Patricia M Schnepp, Dennis D Lee, Ian H Guldner, Treasa K O'Tighearnaigh, Erin N Howe, Bhavana Palakurthi, Kaitlyn E Eckert, Tiffany A Toni, Brandon L Ashfeld, Siyuan Zhang
The impact of altered amino acid metabolism on cancer progression is not fully understood. We hypothesized that a metabolic transcriptome shift during metastatic evolution is crucial for brain metastasis. Here we report a powerful impact in this setting caused by epigenetic upregulation of glutamate decarboxylase 1 (GAD1), a regulator of the GABA neurotransmitter metabolic pathway. In cell-based culture and brain metastasis models, we found that downegulation of the DNA methyltransferase DNMT1 induced by the brain microenvironment-derived clusterin resulted in decreased GAD1 promoter methylation and subsequent upregulation of GAD1 expression in brain metastatic tumor cells...
April 11, 2017: Cancer Research
https://www.readbyqxmd.com/read/28400103/common-marmoset-callithrix-jacchus-as-a-primate-model-for-behavioral-neuroscience-studies
#11
Noeline W Prins, Eric Pohlmeyer, Shubham Debnath, Ramanamurthy Mylavarapu, Shijia Geng, Justin C Sanchez, Daniel Rothen, Abhishek Prasad
BACKGROUND: The common marmoset (Callithrix jacchus) has been proposed as a suitable bridge between rodents and larger primates. They have been used in several types of research including auditory, vocal, visual, pharmacological and genetics studies. However, marmosets have not been used as much for behavioral studies. NEW METHOD: Here we present data from training 12 adult marmosets for behavioral neuroscience studies. We discuss the husbandry, food preferences, handling, acclimation to laboratory environments and neurosurgical techniques...
April 8, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28397431/the-effects-and-safety-of-intravitreal-triamcinolone-injections-in-the-treatment-of-diabetic-macular-edema
#12
Hanna M Zając-Pytrus, Radosław Kaczmarek, Dorota Strońska-Lipowicz, Maria Pomorska, Marta Misiuk-Hojło
BACKGROUND: Diabetic macular edema (DME) is responsible for three-quarters of vision-loss cases in diabetic eye disease. In most cases, early treatment by laser photocoagulation can only stabilize vision. Glucocorticoids have been used as a local pharmacological treatment in DME when the inflammation seems to have a pathological background. OBJECTIVES: The aim of the study was to establish the effectiveness and safety of intravitreal triamcinolone injections in the treatment of DME...
January 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28395669/single-swim-sessions-in-c-elegans-induce-key-features-of-mammalian-exercise
#13
Ricardo Laranjeiro, Girish Harinath, Daniel Burke, Bart P Braeckman, Monica Driscoll
BACKGROUND: Exercise exerts remarkably powerful effects on metabolism and health, with anti-disease and anti-aging outcomes. Pharmacological manipulation of exercise benefit circuits might improve the health of the sedentary and the aging populations. Still, how exercised muscle signals to induce system-wide health improvement remains poorly understood. With a long-term interest in interventions that promote animal-wide health improvement, we sought to define exercise options for Caenorhabditis elegans...
April 10, 2017: BMC Biology
https://www.readbyqxmd.com/read/28383972/sustained-attention-in-the-face-of-distractors-a-study-of-children-with-rett-syndrome
#14
Susan A Rose, Sam Wass, Jeffery J Jankowski, Judith F Feldman, Aleksandra Djukic
OBJECTIVE: The object of the present study is to advance our understanding of the cognitive profile of Rett syndrome (RTT), an X-linked neurodevelopmental disorder caused by mutations in the MECP2 gene. We focus on sustained attention, which plays a critical role in driving cognitive growth, and use an innovative, gaze-based task that minimizes demands on the limited verbal and motor abilities associated with RTT. METHOD: The task required the ability to sustain attention on a visual target (a butterfly) while inhibiting a prepotent response to look to moving distractors (trees and clouds) presented in the peripheral visual field...
April 6, 2017: Neuropsychology
https://www.readbyqxmd.com/read/28377707/cholinergic-potentiation-improves-perceptual-cognitive-training-of-healthy-young-adults-in-three-dimensional-multiple-object-tracking
#15
Mira Chamoun, Frédéric Huppé-Gourgues, Isabelle Legault, Pedro Rosa-Neto, Daniela Dumbrava, Jocelyn Faubert, Elvire Vaucher
A large body of literature supports cognitive enhancement as an effect of cholinergic potentiation. However, it remains elusive whether pharmacological manipulations of cholinergic neurotransmission enhance complex visual processing in healthy individuals. To test this hypothesis, we randomly administered either the cholinergic transmission enhancer donepezil (DPZ; 5 mg P.O.) or placebo (lactose) to young adults (n = 17) 3 h before each session of the three-dimensional (3D) multiple object tracking (3D-MOT) task...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28376510/impact-of-intravitreal-pharmacotherapies-including-antivascular-endothelial-growth-factor-and-corticosteroid-agents-on-diabetic-retinopathy
#16
REVIEW
Charles C Wykoff
PURPOSE OF REVIEW: Diabetic retinopathy is common and increasing in prevalence. Pharmacologic management of diabetic macular edema (DME) has improved tremendously over the last decade with the use of two families of intravitreally administered medications: antivascular endothelial growth factor-specific agents and corticosteroids. Clinical evaluation of these pharmaceuticals has demonstrated that they can have a substantial impact on diabetic retinopathy severity levels and the underlying retinal vasculature itself...
May 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28366377/treatment-of-cystoid-macular-edema-after-cataract-surgery
#17
REVIEW
Laura H P Wielders, Jan S A G Schouten, Merel R Aberle, Verena A Lambermont, Frank J H M van den Biggelaar, Bjorn Winkens, Rob W P Simons, Rudy M M A Nuijts
The purpose of this review was to determine the optimum pharmacologic treatment for cystoid macular edema (CME) after cataract surgery in nondiabetic and diabetic patients. The Cochrane Library, Medline, and Embase databases were searched, and all randomized controlled trials (RCTs) that compared at least 2 pharmacologic strategies for CME after cataract surgery were included. Studies were excluded if preoperative CME or other risk factors for developing CME postoperatively were present. Ten RCTs were included in the systematic review...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28358393/on-chip-human-microvasculature-assay-for-visualization-and-quantification-of-tumor-cell-extravasation-dynamics
#18
Michelle B Chen, Jordan A Whisler, Julia Fröse, Cathy Yu, Yoojin Shin, Roger D Kamm
Distant metastasis, which results in >90% of cancer-related deaths, is enabled by hematogenous dissemination of tumor cells via the circulation. This requires the completion of a sequence of complex steps including transit, initial arrest, extravasation, survival and proliferation. Increased understanding of the cellular and molecular players enabling each of these steps is key to uncovering new opportunities for therapeutic intervention during early metastatic dissemination. As a protocol extension, this article describes an adaptation to our existing protocol describing a microfluidic platform that offers additional applications...
May 2017: Nature Protocols
https://www.readbyqxmd.com/read/28357404/painvision%C3%A2-apparatus-for-assessment-of-efficacy-of-pulsed-radiofrequency-combined-with-pharmacological-therapy-in-the-treatment-of-postherpetic-neuralgia-and-correlations-with-measurements
#19
RANDOMIZED CONTROLLED TRIAL
Dong Wang, Kai Zhang, ShaoLong Han, LingZhi Yu
Objective. PainVision device was a developed application for the evaluation of pain intensity. The objective was to assess the efficacy and safety of pulsed radiofrequency (PRF) combined with pharmacological therapy in the treatment of postherpetic neuralgia (PHN). We also discussed the correlation of the measurements. Method. Forty patients with PHN were randomized for treatment with PRF combined with pharmacological therapy (PRF group, n = 20) or pharmacological therapy (control group, n = 20) at postoperative 48 hours...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28356898/novel-pharmacologic-candidates-for-treatment-of-primary-open-angle-glaucoma
#20
REVIEW
Louise J Lu, James C Tsai, Ji Liu
Primary open-angle glaucoma (OAG) affects approximately 45 million people worldwide and more than 2.5 million people aged 40 years or older in the United States. Pharmacologic treatment for glaucoma is directed towards lowering intraocular pressure (IOP) to slow disease progression and delay visual field loss. Current medical treatment options for the lowering of IOP include the following classes of topical medications: beta-adrenergic antagonists, alpha-adrenergic agonists, cholinergic agonists, carbonic anhydrase inhibitors, and prostaglandin analogs...
March 2017: Yale Journal of Biology and Medicine
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