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https://www.readbyqxmd.com/read/28933665/characterization-of-serum-anti-diphtheria-antibody-activity-following-administration-of-equine-anti-toxin-for-suspected-diphtheria
#1
Heidi L Smith, Greg Saia, Maria Lobikin, Tejpratap Tiwari, Su-Chun Cheng, Deborah C Molrine
There is a global shortage of equine-derived diphtheria anti-toxin (DAT) for diphtheria treatment. There are few existing data on serum antibody concentrations and neutralizing activity post-treatment to support development of new therapeutics. Antibody concentrations were quantified by ELISA and anti-toxin neutralizing activity by cytotoxicity assay in serum from four patients receiving DAT for suspected diphtheria. Using linear mixed effects modeling, estimated mean (SE) half-life was 78.2 (20.0) hours. Maximum serum neutralizing activity ranged from 28...
September 21, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28933424/the-efficacy-and-safety-of-cilostazol-as-an-alternative-to-aspirin-in-chinese-patients-with-aspirin-intolerance-after-coronary-stent-implantation-a-combined-clinical-study-and-computational-system-pharmacology-analysis
#2
Ying Xue, Zhi-Wei Feng, Xiao-Ye Li, Zi-Heng Hu, Qing Xu, Zi Wang, Jia-Hui Cheng, Hong-Tao Shi, Qi-Bing Wang, Hong-Yi Wu, Xiang-Qun Xie, Qian-Zhou Lv
Dual antiplatelet therapy (DAT) with aspirin and clopidogrel is the standard regimen to achieve rapid platelet inhibition and prevent thrombotic events. Currently, little information is available regarding alternative antiplatelet therapy in patients with an allergy or intolerance to aspirin. Although cilostazol is already a common alternative to aspirin in clinical practice in China, its efficacy and safety remain to be determined. We retrospectively analyzed 613 Chinese patients who had undergone primary percutaneous coronary intervention (PCI)...
September 21, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28931769/evaluation-of-early-phase-biodistribution-in-123-i-ioflupane-spect
#3
Masaki Takahashi, Shoichi Toki, Yukitaka Yamashita, Akihiro Kaneko
It is reported that pharmacokinetics after intravenous injection of (123)I-ioflupane may reflect cerebral blood flow. In this study, the early-phase pharmacokinetics of (123)I-ioflupane in 10 healthy volunteers was analyzed over time using dynamic single-photon emission computed tomography (SPECT) immediately after intravenous injection. We also examined the correlation between the (123)I-IMP imaging and the (123)I-ioflupane early-phase image for 14 cases in which both dopamine transporter (DaT) imaging by (123)I-ioflupane and cerebral blood flow imaging by (123)I-IMP were performed on the same camera...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28931404/a-cluster-randomized-trial-to-reduce-major-perinatal-morbidity-among-women-with-one-prior-cesarean-delivery-in-qu%C3%A3-bec-prisma-trial-study-protocol-for-a-randomized-controlled-trial
#4
N Chaillet, E Bujold, B Masse, W A Grobman, P Rozenberg, J C Pasquier, A Shorten, M Johri, F Beaudoin, H Abenhaim, S Demers, W Fraser, M Dugas, S Blouin, E Dubé, R Gauthier
BACKGROUND: Rates of cesarean delivery are continuously increasing in industrialized countries, with repeated cesarean accounting for about a third of all cesareans. Women who have undergone a first cesarean are facing a difficult choice for their next pregnancy, i.e.: (1) to plan for a second cesarean delivery, associated with higher risk of maternal complications than vaginal delivery; or (b) to have a trial of labor (TOL) with the aim to achieve a vaginal birth after cesarean (VBAC) and to accept a significant, but rare, risk of uterine rupture and its related maternal and neonatal complications...
September 20, 2017: Trials
https://www.readbyqxmd.com/read/28931391/umbilical-cord-bilirubin-as-a-predictor-of-neonatal-jaundice-a-retrospective-cohort-study
#5
Kelsey D J Jones, S E Grossman, Dharshini Kumaranayakam, Arati Rao, Greg Fegan, Narendra Aladangady
BACKGROUND: Hyperbilirubinaemia is a major cause of neonatal morbidity. Early identification of those infants most at risk might allow the development of targeted primary preventative therapy and follow-up. The objective of this study was to assess whether arterial umbilical cord bilirubin (aUCB) level at delivery predicts the development of neonatal jaundice in term deliveries. METHODS: Retrospective analysis of hospital biochemistry records identified term deliveries with recorded aUCB...
September 20, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28930655/take-dat-flu
#6
Lior Lobel, Wendy S Garrett
Some microbial metabolites can be immunomodulatory, but there is limited understanding of how these contribute to inter-individual variation in response to infection. In a recent study in Science, Steed et al. (2017) show that the bacterial metabolite desaminotyrosine (DAT) increases type I interferon expression, resulting in an improved immune response to influenza infection.
September 19, 2017: Immunity
https://www.readbyqxmd.com/read/28930069/initial-elevations-in-glutamate-and-dopamine-neurotransmission-decline-with-age-as-does-exploratory-behavior-in-lrrk2-g2019s-knock-in-mice
#7
Mattia Volta, Dayne A Beccano-Kelly, Sarah A Paschall, Stefano Cataldi, Sarah E MacIsaac, Naila Kuhlmann, Chelsie A Kadgien, Igor Tatarnikov, Jesse Fox, Jaskaran Khinda, Emma Mitchell, Sabrina Bergeron, Heather Melrose, Matthew J Farrer, Austen J Milnerwood
LRRK2 mutations produce end-stage Parkinson's disease (PD) with reduced nigrostriatal dopamine. Conversely, asymptomatic carriers have increased dopamine turnover and altered brain connectivity. LRRK2 pathophysiology remains unclear, but reduced dopamine and mitochondrial abnormalities occur in aged mutant knock-in (GKI) mice. Conversely, cultured GKI neurons exhibit increased synaptic transmission. We assessed behavior and synaptic glutamate and dopamine function across ages. Young GKI exhibit more vertical exploration, elevated glutamate and dopamine transmission, and aberrant D2-receptor responses...
September 20, 2017: ELife
https://www.readbyqxmd.com/read/28928221/upregulation-of-autophagy-related-gene-5-protects-dopaminergic-neurons-in-a-zebrafish-model-of-parkinson-s-disease
#8
Zhan-Ying Hu, Bo Chen, Jing-Pu Zhang, Yuan-Yuan Ma
Parkinson's disease (PD) is one of the most epidemic neurodegenerative diseases, and is characterized by movement disorders arising from loss of midbrain dopaminergic (DA) neurons. Recently, the relationship between PD and autophagy has received considerable attention, but information about the mechanisms involved is lacking. Here, we report that autophagy-related gene 5 (ATG5) is potentially important in protecting dopaminergic neurons in a 1-methyl-4phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD model in zebrafish...
September 19, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28927636/feasibility-of-coronary-fractional-flow-reserve-with-dual-anti-platelet-therapy-in-low-risk-coronary-lesions-without-systemic-anticoagulation-results-of-the-smart-ffr-study
#9
Fernando Boccalandro, Mandeep Dhindsa, Prem Subramaniyam, Mary Mok
BACKGROUND: Fractional flow reserve (FFR) is used to assess the functional significance of coronary artery stenoses. The optimal anti-thrombotic regimen for FFR has not been studied. PURPOSE: The goal of this study was to determine whether FFR could be safely performed in Type A coronary lesions, using only upstream dual anti-platelet therapy (DAT) with aspirin and clopidogrel, compared with DAT plus anticoagulation in low risk coronary lesions. METHODS/MATERIALS: Two hundred patients undergoing FFR for Type A intermediate coronary lesions were blindly randomized into two groups of 100 patients each...
August 18, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28925162/-effect-of-corydalis-rhizoma-and-l-tetrahydropalmatine-on-dopamine-system-of-hippocampus-and-striatum-in-morphine-induced-conditioned-place-preference-rats
#10
Shou-Yang Yu, Wei-Feng Bai, Ping Tu, Cheng-Kai Qiu, Pei-Run Yang, Su-Yuan Luo
To investigate the effects of Corydalis Rhizoma and L-tetrahydropalma-tine (L-THP) on the levels of dopamine neurotransmitter (DA), dopamine transporter (DAT) and the second dopamine receptor (D2R) in learning and memory-related brain areas, hippocampus and striatum, the DA, DAT and D2R were detected in conditioned place preference (CPP) rats suffered from morphine. And comparation the degree of similarity and consistency of the pharmacological effects was also studied. The rats were trained in black compartments and white ones (drug-paired compartment) with the increasing doses of morphine for 10 days (hypodermically injected from 10 mg•kg⁻¹ to 100 mg•kg⁻¹)...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28923595/attentional-deficits-and-altered-neuronal-activation-in-medial-prefrontal-and-posterior-parietal-cortices-in-mice-with-reduced-dopamine-transporter-levels
#11
Anita Cybulska-Klosowicz, Marta Laczkowska, Renata Zakrzewska, Aleksandra Kaliszewska
The executive control function of attention is regulated by the dopaminergic (DA) system. Dopamine transporter (DAT) likely plays a role in controlling the influence of DA on cognitive processes. We examined the effects of DAT depletion on cognitive processes related to attention. Mice with the DAT gene genetically deleted (DAT+/- heterozygotes) were compared to wild type (WT) mice on the Attentional Set-Shifting Task (ASST). Changes in neuronal activity during the ASST were shown with early growth response genes 1 and 2 (egr-1 and egr-2) immunohistochemistry in the medial prefrontal cortex (mPFC) and in the posterior parietal cortex (PPC)...
September 16, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28922189/acr-acnm-practice-parameter-for-the-performance-of-dopamine-transporter-dat-single-photon-emission-computed-tomography-spect-imaging-for-movement-disorders
#12
Rathan M Subramaniam, Kirk A Frey, Christopher H Hunt, Gustavo A Mercier, Lilja B Solnes, Patrick M Colletti, Yang Lu, Bital Savir-Baruch, Hadyn T Williams
This American College of Radiology and American College of Nuclear Medicine joint clinical practice parameter is for performance of dopamine transporter single photon emission computed tomography (SPECT) imaging, for patients with movement disorders. Parkinsonian syndrome (PS) consists of a group of neurodegenerative diseases including Parkinson disease (PD), progressive supranuclear palsy (PSP), multiple system atrophy (MSA), corticobasal degeneration (CBD), and dementia with Lewy bodies (DLB). Accurate diagnosis of PS is critical for clinical management...
September 15, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28922168/evaluation-of-rna-blood-biomarkers-in-individuals-at-risk-of-parkinson-s-disease
#13
Jose A Santiago, Judith A Potashkin
BACKGROUND: Substantial progress has been made in the discovery of blood biomarkers for Parkinson's disease (PD), a progressive neurodegenerative disease that affects more than 4 million worldwide. Olfactory dysfunction and dopamine deficits usually precede motor symptoms years before the onset of PD. A readily accessible biomarker useful for identifying patients at risk of PD is expected to accelerate clinical trials. OBJECTIVE: To evaluate previously identified PD blood RNA biomarkers in a cohort of asymptomatic individuals at risk of PD...
September 11, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28921596/single-cocaine-exposure-does-not-alter-striatal-presynaptic-dopamine-function-in-mice-an-18-f-fdopa-pet-study
#14
D R Bonsall, M Kokkinou, M Veronese, C Coello, L A Wells, O D Howes
Cocaine is a recreational drug of abuse that binds to the dopamine transporter (DAT), preventing reuptake of dopamine into presynaptic terminals. The increased presence of synaptic dopamine results in stimulation of both pre- and postsynaptic dopamine receptors, considered an important mechanism by which cocaine elicits its reinforcing properties. However, the effects of acute cocaine administration on presynaptic dopamine function remain unclear. Non-invasive imaging techniques such as positron emission tomography (PET) have revealed impaired presynaptic dopamine function in chronic cocaine users...
September 18, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28917737/3-4-diaminotoluene-sensor-development-based-on-hydrothermally-prepared-mncoxoy-nanoparticles
#15
Mohammed M Rahman, M M Alam, Abdullah M Asiri, M A Islam
A facile hydrothermal process was used to prepare MnCoxOy nanoparticles (NPs) in alkaline medium (pH~10.5) at room temperature. The NPs were characterized by Fourier-transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV/vis), field emission scanning electron microscopy (FESEM), X-ray photoelectron spectroscopy (XPS), energy-dispersive X-ray spectroscopy (EDS), and powder X-ray diffraction (XRD). A thin layer of NPs film as a chemical sensor was fabricated on a glassy carbon electrode (GCE) with the help of a conducting binder...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28913731/inter-and-intra-observer-reproducibility-of-quantitative-analysis-for-fp-cit-spect-in-patients-with-dlb
#16
Atsutaka Okizaki, Michihiro Nakayama, Kaori Nakajima, Takayuki Katayama, Takahiro Uno, Fumiyoshi Morikawa, Juichiro Naoe, Koji Takahashi
BACKGROUND: Dopamine transporter single photon emission CT (DAT-SPECT) is useful in the evaluation of dementia with Lewy bodies (DLB). The specific binding ratio (SBR) is an index to measure DAT density. However, poorly reproducible cases are occasionally experienced in clinical practice. We hypothesized that distance-weighted histogram (DWH) may be useful to improve the reproducibility of SBR. The purpose of this study was to investigate inter- and intra-observer reproducibility of SBR with conventional and DWH methods, and to visually evaluate the precision in reference voxel of interest (VOI) definition using these methods...
September 14, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28912301/early-onset-drug-induced-parkinsonism-after-exposure-to-offenders-implies-nigrostriatal-dopaminergic-dysfunction
#17
Seok Jong Chung, Han Soo Yoo, Hyojeong Moon, Jungsu S Oh, Jae Seung Kim, Yong Hee Park, Jin Yong Hong, Byoung Seok Ye, Young H Sohn, Phil Hyu Lee
OBJECTIVES: The onset of parkinsonism in patients with drug-induced parkinsonism (DIP) exhibits extensive individual variability following exposure to offending drugs. We investigated whether the individual variations in the onset time of parkinsonism reflected the underlying subtle dopaminergic dysfunction in DIP. METHODS: We enrolled 71 patients with DIP who had visually normal striatal dopamine transporter (DAT) availability in (18)F-FP-CIT positron emission tomography scans...
September 14, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28905875/structural-and-functional-characterization-of-the-interaction-of-snapin-with-the-dopamine-transporter-differential-modulation-of-psychostimulant-actions
#18
Amaia M Erdozain, Stéphanie De Gois, Véronique Bernard, Victor Gorgievski, Nicolas Pietrancosta, Sylvie Dumas, Carlos E Macedo, Peter Vanhoutte, Jorge E Ortega, J Javier Meana, Eleni T Tzavara, Vincent Vialou, Bruno Giros
The importance of dopamine (DA) neurotransmission is emphasized by its direct implication in several neurological and psychiatric disorders. The DA transporter (DAT), target of psychostimulant drugs, is the key protein that regulates spatial and temporal activity of DA in the synaptic cleft via the rapid reuptake of DA into the presynaptic terminal. There is strong evidence suggesting that DAT-interacting proteins may play a role in its function and regulation. Performing a yeast-2-hybrid screening, we identified snapin, a SNARE-associated protein implicated in synaptic transmission, as a new binding partner of the carboxyl terminal of DAT...
September 14, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28901166/the-in-vitro-and-in-vivo-anti-inflammatory-activities-of-alphitonin-4-o-%C3%AE-d-glucopyranoside
#19
Nguyen Quoc Vuong, Vu Van Chien, Do Thi Thao, Nguyen Thi Nga, Do Thi Phuong, Pham Van Cuong, Nguyen Tien Dat
The anti-inflammatory compound, alphitonin-4-O-β-D-glucopyranoside (1), has previously been isolated in the leaves of Artokapus tonkinensis and synthesised from taxifolin. This study aimed to investigate the inhibitory effect of this compound on inflammatory cytokines, including tumour necrosis factor-alpha (TNF-α), interleukin (IL)-1, IL-6 and IL-10, in RAW264.7 macrophages and in an arthritis animal model. Compound 1 dose-dependently decreased the production of TNF-α, IL-1 and IL-6 in lipopolysaccharide-stimulated RAW264...
September 13, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28899958/serotonin-transporter-binding-and-anxiety-symptoms-in-parkinson-s-disease
#20
Merijn Joling, Odile A van den Heuvel, Henk W Berendse, Jan Booij, Chris Vriend
BACKGROUND: Anxiety is a common neuropsychiatric symptom in Parkinson's disease (PD), yet the neural mechanisms have been scarcely investigated. Disturbances in dopaminergic and serotonergic signalling may play a role in its pathophysiology. (123)I-N-ω-fluoropropyl-2β-carbomethoxy-3β-(4-iodophenyl)nortropane ((123)I-FP-CIT) is a single-photon emission CT radiotracer, and its binding in striatal and extrastriatal subcortical brain areas represents predominant binding to the presynaptic dopamine transporter (DAT) and the serotonin transporter (SERT), respectively...
September 12, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
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