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visual pharmacology

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https://www.readbyqxmd.com/read/28816073/overactive-bladder-treatment-application-of-methylene-blue-to-improve-the-injection-technique-of-onabotulinum-toxin-a
#1
Michał Szczypior, Wojciech Połom, Marcin Markuszewski, Krzesimir Ciura, Magdalena Buszewska-Forajta, Julia Jacyna, Michał Markuszewski, Marcin Matuszewski
OBJECTIVE: The aim of this study was to test the addition of methylene blue (MB) to onabotulinum toxin A (BTX-A) solution in overactive bladder (OAB) treatment, as a means of facilitating observation of the injection site and assessing the distribution of the drug under the bladder mucosa during injection. Pharmacological interactions between BTX-A and MB were also evaluated. MATERIALS AND METHODS: The study was conducted between December 2014 and April 2016 on 30 patients: six males and 24 females (median age 57...
August 17, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28813718/transgenic-mice-over-expressing-rbp4-have-rbp4-dependent-and-light-independent-retinal-degeneration
#2
Mei Du, Eric Phelps, Michael J Balangue, Aaron Dockins, Gennadiy Moiseyev, Younghwa Shin, Shelley Kane, Laura Otalora, Jian-Xing Ma, Rafal Farjo, Krysten M Farjo
Purpose: Transgenic mice overexpressing serum retinol-binding protein (RBP4-Tg) develop progressive retinal degeneration, characterized by microglia activation, yet the precise mechanisms underlying retinal degeneration are unclear. Previous studies showed RBP4-Tg mice have normal ocular retinoid levels, suggesting that degeneration is independent of the retinoid visual cycle or light exposure. The present study addresses whether retinal degeneration is light-dependent and RBP4-dependent by testing the effects of dark-rearing and pharmacological lowering of serum RBP4 levels, respectively...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28807873/neurophysiologically-informed-markers-of-individual-variability-and-pharmacological-manipulation-of-human-cortical-gamma
#3
A D Shaw, R J Moran, S D Muthukumaraswamy, J Brealy, D E Linden, K J Friston, K D Singh
The ability to quantify synaptic function at the level of cortical microcircuits from non-invasive data would be enormously useful in the study of neuronal processing in humans and the pathophysiology that attends many neuropsychiatric disorders. Here, we provide proof of principle that one can estimate inter-and intra-laminar interactions among specific neuronal populations using induced gamma responses in the visual cortex of human subjects - using dynamic causal modelling based upon the canonical microcircuit (CMC; a simplistic model of a cortical column)...
August 11, 2017: NeuroImage
https://www.readbyqxmd.com/read/28806585/relationship-between-craving-and-plasma-leptin-concentrations-in-patients-with-cocaine-addiction
#4
Giovanni Martinotti, Chiara Montemitro, Gaia Baroni, Sara Andreoli, Flaminia Alimonti, Marco Di Nicola, Federico Tonioni, Lorenzo Leggio, Massimo di Giannantonio, Luigi Janiri
BACKGROUND: There is robust evidence indicating an overlap between neurobiological circuitry and pathways that regulate addictions and those that regulate appetite and food intake. Rodent work suggests a role of the appetitive peptide leptin in cocaine-seeking behaviours. The goal of this study was to investigate the possible relationship between plasma leptin concentrations and cocaine craving and use in patients seeking treatment for cocaine dependence. METHODS: Patients (N=43) with a DSM-IV diagnosis of cocaine dependence were studied before starting detoxification (baseline; T0) and then again 14days after (T1; only those patients who abstained from cocaine during the study)...
August 5, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28794407/focal-cortical-seizures-start-as-standing-waves-and-propagate-respecting-homotopic-connectivity
#5
L Federico Rossi, Robert C Wykes, Dimitri M Kullmann, Matteo Carandini
Focal epilepsy involves excessive cortical activity that propagates both locally and distally. Does this propagation follow the same routes as normal cortical activity? We pharmacologically induced focal seizures in primary visual cortex (V1) of awake mice, and compared their propagation to the retinotopic organization of V1 and higher visual areas. We used simultaneous local field potential recordings and widefield imaging of a genetically encoded calcium indicator to measure prolonged seizures (ictal events) and brief interictal events...
August 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28791829/intravitreal-ocriplasmin-a-breakthrough-in-the-treatment-of-vitreomacular-traction
#6
REVIEW
Anna E Mec-Słomska, Joanna Adamiec-Mroczek, Ewa Kuźmicz, Marta Misiuk-Hojło
Vitreoretinal interface pathologies, such as vitreomacular traction syndrome, epiretinal membranes and macular holes are sight-threatening conditions and one of the important causes of vision defects and vision loss. To this date, vigilance with observation of how the vitreomacular traction resolves, or vitreoretinal surgery in more severe cases, were the only treatment options. Recent rapid progress in ophthalmology, especially in diagnostic and visualization techniques, provided better insight into the mechanisms taking place on the vitreoretinal surface, which enabled a more accurate selection of treatment options...
May 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28791364/identification-of-the-active-compounds-and-significant-pathways-of-yinchenhao-decoction-based-on-network-pharmacology
#7
Jihan Huang, Fan Cheung, Hor-Yue Tan, Ming Hong, Ning Wang, Juan Yang, Yibin Feng, Qingshan Zheng
Yinchenhao decoction (YCHD) is a traditional Chinese medicine formulation, which has been widely used for the treatment of jaundice for 2,000 years. Currently, YCHD is used to treat various liver disorders and metabolic diseases, however its chemical/pharmacologic profiles remain to be elucidated. The present study identified the active compounds and significant pathways of YCHD based on network pharmacology. All of the chemical ingredients of YCHD were retrieved from the Traditional Chinese Medicine Systems Pharmacology database...
August 2, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28771965/contribution-of-the-cytoskeleton-to-mechanosensitivity-reported-by-dinoflagellate-bioluminescence
#8
J C Stires, M I Latz
The cytoskeleton is crucial to cell mechanics and sensing the extracellular physical environment. The objective of this study was to examine the role of the cortical cytoskeleton in mechanosensitivity in a unicellular protist, the marine dinoflagellate Lingulodinium polyedra, using its intrinsic bioluminescence as a rapid reporter of mechanotransduction. Pharmacological treatments resolved effects due to immediate cytoskeleton disruption from those due to cytoskeletal remodeling during the light to dark phase transition...
August 3, 2017: Cytoskeleton
https://www.readbyqxmd.com/read/28771434/cutaneous-temperature-sensitivity-alteration-in-subjects-with-chronic-stroke-sequelae-pharmacological-perspectives
#9
Artur Cesar Aquino Santos, Fábio Marcon Alfieri, Linamara Rizzo Battistella
BACKGROUND: Stroke can result in body temperature sensitivity changes. This study analyzed abnormal temperature perception of patients with stroke and the use of vasoactive drugs. METHODS: A cross-sectional retrospective study was carried out consisting of 100 patients (55.6±12.9 years old), from both genres, with either hemorrhagic or ischemic stroke, with unilateral hemiplegia or hemiparesis. Subjects had axillary temperature and different temperature sensitivities of the limbs measured using a visual analog scale (VAS)...
August 3, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28770439/crocetin-potentiates-neurite-growth-in-hippocampal-neurons-and-facilitates-functional-recovery-in-rats-with-spinal-cord-injury
#10
Xiqian Wang, Xiejia Jiao, Zhonghao Liu, Yixin Li
Crocetin is an ingredient of traditional Chinese medicine and has therapeutic potential in various diseases due to its pharmacological properties, such as neuroprotection, anti-oxidative stress, and anti-inflammation. These properties might benefit the treatment of spinal cord injury. In the present study, we tested the effect of crocetin on neurite growth and sensorimotor dysfunction in a rat model of spinal cord injury. We evaluated the viability of cultured hippocampal neurons with tetrazolium dye and lactate dehydrogenase assays, visualized neurites and axons with antibody staining, and monitored motor and sensorimotor functions in rats with spinal cord injury using the Basso, Beattie, and Bresnahan assay and the contact plantar placement test, respectively, and measured cytokine expression using enzyme-linked immuno-absorbent assays...
August 2, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28766109/treatment-of-medication-related-osteonecrosis-of-the-jaw-and-its-impact-on-a-patient-s-quality-of-life-a-single-center-10-year-experience-from-southern-italy
#11
Giacomo Oteri, Gianluca Trifirò, Matteo Peditto, Loredana Lo Presti, Ilaria Marcianò, Francesco Giorgianni, Janet Sultana, Antonia Marcianò
INTRODUCTION: No official guidelines are available for the management of medication-related osteonecrosis of the jaw (MR-ONJ). The additional benefit of surgery after pharmacological treatment is debated by both clinicians and patients. OBJECTIVE: The aim of this study was to evaluate the changes in patients' MR-ONJ-related quality of life (QoL) after pharmacological treatment with or without surgery in a large cohort affected by MR-ONJ. METHODS: Anonymized data on patients diagnosed with MR-ONJ were extracted from the database of the Osteonecrosis of the Jaw Treatment Center (University of Messina, Italy) in the years 2005-2015...
August 1, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28764929/inhibition-of-aurora-kinase-a-induces-necroptosis-in-pancreatic-carcinoma
#12
Yangchun Xie, Shan Zhu, Meizuo Zhong, Minghua Yang, Xiaofan Sun, Jinbao Liu, Guido Kroemer, Michael Lotze, Herbert J Zeh, Rui Kang, Daolin Tang
BACKGROUND & AIMS: Induction of non-apoptotic cell death could be an approach to eliminate apoptosis-resistant tumors. We investigated necroptosis-based therapies in mouse models of pancreatic ductal adenocarcinoma cancer (PDAC). METHODS: We screened 273 commercially available kinase inhibitors for cytotoxicity against a human PDAC cell line (PANC1). We evaluated the ability of the aurora kinase inhibitor CCT137690 to stimulate necroptosis in PDAC cell lines (PANC1, PANC2...
July 29, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28760982/low-frequency-hippocampal-cortical-activity-drives-brain-wide-resting-state-functional-mri-connectivity
#13
Russell W Chan, Alex T L Leong, Leon C Ho, Patrick P Gao, Eddie C Wong, Celia M Dong, Xunda Wang, Jufang He, Ying-Shing Chan, Lee Wei Lim, Ed X Wu
The hippocampus, including the dorsal dentate gyrus (dDG), and cortex engage in bidirectional communication. We propose that low-frequency activity in hippocampal-cortical pathways contributes to brain-wide resting-state connectivity to integrate sensory information. Using optogenetic stimulation and brain-wide fMRI and resting-state fMRI (rsfMRI), we determined the large-scale effects of spatiotemporal-specific downstream propagation of hippocampal activity. Low-frequency (1 Hz), but not high-frequency (40 Hz), stimulation of dDG excitatory neurons evoked robust cortical and subcortical brain-wide fMRI responses...
August 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28757225/clinical-evaluation-of-vatariguggulu-maharasnadikwatha-and-narayan-taila-in-the-management-of-osteoarthritis-knee
#14
Anil Mangal, M N Shubhasree, Pramila Devi, A D Jadhav, Sai A Prasad, Kisore Kumar, Sarada Otta, K S Dhiman
BACKGROUND: In present era, pharmacological, bio-chemical and surgical interventions are not success remedy for Osteoarthritis (OA). Ayurveda and other complementary medicine have medication for OA. OBJECTIVES: The main aim of the study was to assess the efficacy and safety of therapeutic combination of Vatari guggulu along with Maharasnadi kwatha and Narayan taila with gentle massage for 15 min daily up to 12 weeks on affected knee joint pain assessed on Visual analogue scale (VAS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC)...
July 27, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28755165/assessment-of-intravitreal-ocriplasmin-treatment-for-vitreomacular-traction-in-clinical-practice
#15
Ricarda G Schumann, Julian Langer, Denise Compera, Katharina Luedtke, Markus M Schaumberger, Thomas Kreutzer, Wolfgang J Mayer, Armin Wolf, Siegfried G Priglinger
PURPOSE: To assess treatment effects following intravitreal injection of ocriplasmin for vitreomacular traction (VMT), with or without full-thickness macular hole (FTMH), in real-life setting. METHODS: This is a monocentric, retrospective, consecutive series of 82 eyes from 82 patients who underwent ocriplasmin treatment between July 2013 and December 2016. We included 57 eyes with pure VMT, 17 eyes with small FTMHs, and eight eyes with medium FTMHs. Primary outcome measures were VMT release and MH closure rates...
July 28, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28748465/automated-patch-clamp-methods-for-the-herg-cardiac-potassium-channel
#16
Sylvie Houtmann, Brigitte Schombert, Camille Sanson, Michel Partiseti, G Andrees Bohme
The human Ether-a-go-go Related Gene (hERG) product has been identified as a central ion channel underlying both familial forms of elongated QT interval on the electrocardiogram and drug-induced elongation of the same QT segment. Indeed, reduced function of this potassium channel involved in the repolarization of the cardiac action potential can produce a type of life-threatening cardiac ventricular arrhythmias called Torsades de Pointes (TdP). Therefore, hERG inhibitory activity of newly synthetized molecules is a relevant structure-activity metric for compound prioritization and optimization in medicinal chemistry phases of drug discovery...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28736676/label-free-photoacoustic-imaging-of-the-cardio-cerebrovascular-development-in-the-embryonic-zebrafish
#17
Qian Chen, Tian Jin, Weizhi Qi, Xianming Mo, Lei Xi
Zebrafish play an important role in biology, pharmacology, toxicology, and medicine. The cardio-cerebrovascular development of zebrafish is particularly critical to understand both brain disorders and cardiovascular diseases in human. In this paper, we applied optical resolution photoacoustic microscopy (ORPAM) to image the whole-body vasculature of the embryonic zebrafish with a special focus on the development of the cardio-cerebrovascular system. Using the intrinsic optical absorption contrast of the embryo, we successfully visualized the formation of the cardio-cerebrovascular network in high-resolution using a 10 × objective, and monitored the whole-body vascular development using a 4 × objective...
April 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28735785/effect-of-the-simultaneous-working-length-control-during-root-canal-preparation-on-postoperative-pain
#18
Hakan Arslan, Yahya Güven, Ertuğrul Karataş, Ezgi Doğanay
AIM: The aim of this study was to evaluate the effect of simultaneous length control during root canal preparation on postoperative pain compared with separate working length determination and root canal preparation. The design was a parallel-group, randomized, controlled trial with 2 arms. METHODS: Forty-four molar teeth were randomly divided into 2 groups (n = 22), a control group (separate length determination and root canal preparation) and a simultaneous length control during root canal preparation group...
July 20, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28729220/cognitive-enhancement-and-antipsychotic-like-activity-following-repeated-dosing-with-the-selective-m4-pam-vu0467154
#19
Robert W Gould, Michael D Grannan, Barak W Gunter, Jacob Ball, Michael Bubser, Thomas M Bridges, Jurgen Wess, Michael W Wood, Nicholas J Brandon, Mark E Duggan, Colleen M Niswender, Craig W Lindsley, P Jeffrey Conn, Carrie K Jones
Although selective activation of the M1 muscarinic acetylcholine receptor (mAChR) subtype has been shown to improve cognitive function in animal models of neuropsychiatric disorders, recent evidence suggests that enhancing M4 mAChR function can also improve memory performance. Positive allosteric modulators (PAMs) targeting the M4 mAChR subtype have shown therapeutic potential for the treatment of multiple symptoms observed in schizophrenia, including positive and cognitive symptoms when assessed in acute preclinical dosing paradigms...
July 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28728802/-psychotherapies-for-the-treatment-of-phantom-limb-pain
#20
Katherine Cárdenas, Mariana Aranda
INTRODUCTION: The phantom limb pain has been described as a condition in which patients experience a feeling of itching, spasm or pain in a limb or body part that has been previously amputated. Such pain can be induced by a conflict between the representation of the visual and proprioceptive feedback of the previously healthy limb. The phantom limb pain occurs in at least 42 to 90% of amputees. Regular drug treatment of phantom limb pain is almost never effective. METHODS: A systematic review of the literature was conducted in Medline and Cochrane using the MESH terms "phantom limb pain" and "psychotherapy", published in the last 10 years, in English and Spanish, finding 49 items...
July 2017: Revista Colombiana de Psiquiatría
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