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https://www.readbyqxmd.com/read/28649230/high-compliance-with-scheduled-nimodipine-is-associated-with-better-outcome-in-aneurysmal-subarachnoid-hemorrhage-patients-cotreated-with-heparin-infusion
#1
Aaron Wessell, Matthew J Kole, Neeraj Badjatia, Gunjan Parikh, Jennifer S Albrecht, David L Schreibman, J Marc Simard
INTRODUCTION: We sought to determine whether compliance with scheduled nimodipine in subarachnoid hemorrhage patients impacted patient outcomes, with the intent of guiding future nimodipine management in patients who experience nimodipine-induced hypotension. METHODS: We performed a retrospective analysis of 118 consecutive aneurysmal subarachnoid hemorrhage patients treated with the Maryland Low-Dose IV Heparin Infusion Protocol. Patients were categorized into three independent nimodipine compliance groups: ≥1 dose held, ≥1 dose split, and no missed or split-doses...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28608248/the-analgesic-effect-of-trans-resveratrol-is-regulated-by-calcium-channels-in-the-hippocampus-of-mice
#2
Weijie Wang, Yingcong Yu, Jing Li, Lin Wang, Zhi Li, Chong Zhang, Linlin Zhen, Lianshu Ding, Gang Wang, Xiaoyang Sun, Ying Xu
Resveratrol has been widely studied in terms of it's potential to slow the progression of many diseases. But little is known about the mechanism of action in neuropathic pain. Neuropathic pain is the main type of chronic pain associated with tissue injury. Calcium channels and calcium/caffeine-sensitive pools are associated with analgesic pathway involving neuropathic pain. Our previous study suggested that the antinociceptive effect of resveratrol was involved in Ca(2+)/calmodulin-dependent signaling in the spinal cord of mice...
June 12, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28582545/stereotactic-catheter-ventriculocisternostomy-for-clearance-of-subarachnoid-hemorrhage-in-patients-with-coiled-aneurysms
#3
Roland Roelz, Christian Scheiwe, Horst Urbach, Volker A Coenen, Peter Reinacher
BACKGROUND: Cerebral vasospasm leading to delayed cerebral infarction (DCI) is a central source of poor outcome in patients with aneurysmal subarachnoid hemorrhage (aSAH). Current treatments of cerebral vasospasm are insufficient. Cisternal blood clearance is a promising treatment option. However, a generally applicable, safe, and effective method to access the cisterns of the brain is lacking. OBJECTIVE: To report on stereotactic catheter ventriculocisternostomy (STX-VCS) as a method to access the cisterns of the brain for clearance of subarachnoid hemorrhage in patients with aSAH and coiled aneurysms...
June 3, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28579899/effects-of-the-rabdosia-rubescens-total-flavonoids-on-focal-cerebral-ischemia-reperfusion-model-in-rats
#4
Mingsan Miao, Xiaoli Yan, Lin Guo, Shuai Shao
The effect of the Rabdosia rubescens total flavonoids on focal cerebral ischemia reperfusion model in rats was observed. The model group, nimodipine group, cerebral collateral group, and large, medium and small dose group of the Rabdosia rubescens total flavonoids were administered with corresponding drugs but sham operation group and model group were administered the same volume of 0.5%CMC, 1 times a day, continuous administration of 7 d. After 1 h at 7 d to medicine, left incision in the middle of the neck of rats after anesthesia, we can firstly expose and isolate the left common carotid artery (CCA), and then expose external carotid artery (ECA) and internal carotid artery (ICA)...
May 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28573241/mechanisms-underlying-action-of-xinmailong-injection-a-traditional-chinese-medicine-in-cardiac-function-improvement
#5
Zhengtao Li, Sujuan Li, Lin Hu, Fang Li, Alex Chun Cheung, Weizai Shao, Yuling Que, George Pek-Heng Leung, Cui Yang
BACKGROUND: As a bioactive composite extracted from American cockroach, Xinmailong injection (XML) is used for the treatment of congestive heart failure (CHF) in China. Clinical data has provided evidence that XML has positive inotropic properties. The objective of this study was to assess the mechanisms involved in the therapeutical effect of XML on CHF. MATERIALS AND METHODS: The effects of XML on the cardiac function in isolated rat heart were measured. A Ca(2+) imaging technology was used in rat cardiomyocytes (H9c2 cells) to reveal the role of XML on Ca(2+) channels...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28553371/effect-of-nimodipine-on-morphine-related-withdrawal-syndrome-in-rat-model-an-observational-study
#6
Pravash Ranjan Mishra, Mayadhar Barik, Subrata Basu Ray
OBJECTIVE: To observe the effect of L-type calcium channel blocker like nimodipine on morphine's withdrawal when it was administered continuously along with morphine versus a single bolus dose of nimodipine, which was administered at the end of the experiment before the precipitation of withdrawal reaction in morphine-dependent rats. MATERIALS AND METHODS: Four groups of adult male Wistar rats were rendered morphine dependent by subcutaneous injections of morphine at a dose of 10 mg/kg for 10 days...
January 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/28508173/neuroprotective-effects-of-lycium-barbarum-polysaccharide-on-focal-cerebral-ischemic-injury-in-mice
#7
Peng Zhao, Ru Zhou, Xiao-Yun Zhu, Gang Liu, Yu-Ping Zhao, Peng-Sheng Ma, Wei Wu, Yang Niu, Tao Sun, Yu-Xiang Li, Jian-Qiang Yu, Zhong-Ming Qian
Increasing evidence demonstrates inflammation contributes to neuronal death following cerebral ischemia. Lycium barbarum polysaccharide (LBP) has been reported to prevent scopolamine-induced cognitive and memory deficits. We recently indicated that LBP exerts neuroprotective effect against focal cerebral ischemic injury in mice via attenuating the mitochondrial apoptosis pathway. The aim of this study was to investigate the neuroprotective effects of LBP against the behavioral dysfunction induced by focal cerebral ischemia injury in mice...
May 15, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28490879/methodological-assessment-of-the-reduction-of-the-content-of-impurities-in-nimodipine-emulsion-via-the-use-of-21-amino-acid-protection
#8
Yiqiao Xie, Zhiquan Zhuang, Shu Zhang, Zihua Xia, De Chen, Kaiyan Fan, Jialin Ren, CuiCui Lin, Yanzhong Chen, Fan Yang
PURPOSE: The present study examined the factors affecting the content of impurities of nimodipine (NMP) emulsion and the associated methods of compound protection. METHODS: Destructive testing of NMP emulsion and its active pharmaceutical ingredient (API) were conducted, and ultracentrifugation was used to study the content of impurities in two phases. The impurity of NMP was measured under different potential of hydrogen (pH) conditions, antioxidants and pH-adjusting agents...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28489775/effects-of-nimodipine-on-postoperative-delirium-in-elderly-under-general-anesthesia-a-prospective-randomized-controlled-clinical-trial
#9
Ya-Nan Li, Qi Zhang, Chun-Ping Yin, Yang-Yang Guo, Shu-Ping Huo, Liang Wang, Qiu-Jun Wang
Nimodipine is a clinical commonly used calcium antagonistscan lowering the apoptosis rate of hippocampal neuron to reduce the incidence of postoperative cognitive dysfunction (POCD). This study was designed to evaluate the effects of nimodipine on postoperative delirium in elderly under general anesthesia.Sixty patients shceduced spine surgery under general anesthesia were randomly assigned into 2 groups using a random number table: control group (Group C) and nimodipine group (Group N). In Group N, nimodipine 7...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28467360/nimodipine-but-not-nifedipine-promotes-expression-of-fatty-acid-2-hydroxylase-in-a-surgical-stress-model-based-on-neuro2a-cells
#10
Eva Herzfeld, Lea Speh, Christian Strauss, Christian Scheller
Nimodipine is well characterized for the management of aneurysmal subarachnoid hemorrhage and has been shown to promote a better outcome and less delayed ischemic neurological deficits. Animal and clinical trials show neuroprotective efficacy following nerve injuries. We showed a neuroprotective effect on Neuro2a cells. Subsequent microarray analysis revealed-among others-fatty acid 2-hydroxylase (FA2H) upregulated by nimodipine in vitro, which is a component of myelin synthesis. Differentiated Neuro2a cells were analyzed for nimodipine-mediated survival considering stress treatment in comparison to nifedipine-treatment...
May 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28456915/reversible-cerebral-vasoconstriction-syndrome-recognition-and-treatment
#11
REVIEW
Cecilia Cappelen-Smith, Zeljka Calic, Dennis Cordato
Reversible cerebral vasoconstriction syndrome (RCVS) is a rare but increasingly recognized disorder with over 500 cases published in the literature. The condition is characterized by recurrent severe thunderclap headaches with or without other neurological symptoms and diffuse segmental narrowing of the cerebral arteries which is reversible within 3 months. RCVS may occur spontaneously but in over 50% of cases, it is associated with various other conditions, including vasoactive medications or illicit drugs and the post-partum state...
June 2017: Current Treatment Options in Neurology
https://www.readbyqxmd.com/read/28453907/aggregation-behaviour-of-non-ionic-twinned-amphiphiles-and-their-application-as-biomedical-nanocarriers
#12
Abhishek K Singh, Bala N S Thota, Boris Schade, Katharina Achazi, Abdullah Khan, Christoph Böttcher, Sunil K Sharma, Rainer Haag
A new class of twinned amphiphiles was developed by conjugating a pair of hydrophilic head groups from mPEG chains (Mn: 350 or 1000) and a pair of hydrophobic segments from linear alkyl chains (C11 or C18) through a novel spacer synthesized from glycerol and p-hydroxybenzoic acid. The aggregation phenomena of the amphiphiles were proven by DLS and fluorescence experiments, whereas size and morphology of the aggregates were evaluated by cryo-TEM, the measurements proved the formation of globular, thread-like or rod-like micelles as well as planar double-layer assemblies, depending on the amphiphile's molecular structure...
April 28, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28413883/comment-the-effects-of-14-versus-21-days-of-nimodipine-therapy-on-neurological-outcomes-in-aneurysmal-subarachnoid-hemorrhage-patients
#13
Megan Harbin, Ricky Turgeon
No abstract text is available yet for this article.
April 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28397570/is-intra-arterial-nimodipine-really-beneficial-in-vasospasm-following-aneurysmal-subarachnoid-hemorrhage
#14
Ashwani Kumar, Manoj Phalak
No abstract text is available yet for this article.
April 11, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28386193/the-influence-of-stachydrine-hydrochloride-on-the-reperfusion-model-of-mice-with-repetitive-cerebral-ischemia
#15
Mingsan Miao, Ting Wang, Xin Lou, MingBai, Peng Xi, Baosong Liu, Bingjie Chang
To study the influence of stachydrine hydrochloride on the inflammatory cytokines and tissue morphology of the re-perfusion model of mice with repetitive cerebral ischemia and probe into the protection mechanism of stachydrine hydrochloride for cerebral ischemia reperfusion impairment. Build a repetitive cerebral ischemia reperfusion model by first blocking the common carotid artery on both sides for 10 min, then resuming perfusion for 10 min and then blocking the common carotid artery on both sides again for 10 min...
March 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28381594/nimodipine-fosters-remyelination-in-a-mouse-model-of-multiple-sclerosis-and-induces-microglia-specific-apoptosis
#16
Andrea Schampel, Oleg Volovitch, Tobias Koeniger, Claus-Jürgen Scholz, Stefanie Jörg, Ralf A Linker, Erhard Wischmeyer, Marie Wunsch, Johannes W Hell, Süleyman Ergün, Stefanie Kuerten
Despite continuous interest in multiple sclerosis (MS) research, there is still a lack of neuroprotective strategies, because the main focus has remained on modulating the immune response. Here we performed in-depth analysis of neurodegeneration in experimental autoimmune encephalomyelitis (EAE) and in in vitro studies regarding the effect of the well-established L-type calcium channel antagonist nimodipine. Nimodipine treatment attenuated clinical EAE and spinal cord degeneration and promoted remyelination...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28349560/evaluation-of-the-chiral-recognition-properties-and-the-column-performances-of-three-chiral-stationary-phases-based-on-cellulose-for-the-enantioseparation-of-six-dihydropyridines-by-high-performance-liquid-chromatography
#17
Jia Yu, Jing Tang, Xiaowei Yuan, Xingjie Guo, Longshan Zhao
Separations of six dihydropyridine enantiomers on three commercially available cellulose-based chiral stationary phases (Chiralcel OD-RH, Chiralpak IB, and Chiralpak IC) were evaluated with high-performance liquid chromatography (HPLC). The best enantioseparation of the six chiral drugs was obtained with a Chiralpak IC (250 × 4.6 mm i.d., 5 μm) column. Then the influence of the mobile phase including an alcohol-modifying agent and alkaline additive on the enantioseparation were investigated and optimized...
March 28, 2017: Chirality
https://www.readbyqxmd.com/read/28344178/systemic-and-cerebral-concentration-of-nimodipine-during-established-and-experimental-vasospasm-treatment
#18
Walid Albanna, Miriam Weiss, Catharina Conzen, Hans Clusmann, Toni Schneider, Martin Reinsch, Marguerite Müller, Martin Wiesmann, Anke Höllig, Gerrit Alexander Schubert
BACKGROUND: Oral nimodipine is an established prophylactic agent for cerebral vasospasm after subarachnoid hemorrhage (SAH). In highly selected cases, intra-arterial (IA) or intravenous (IV) application of nimodipine may be considered; however, the optimum dosage and modality of application remain a matter of debate. The purpose of this investigation is analysis of nimodipine concentration in serum, cerebrospinal fluid, and cerebral microdialysate in the context of currently effective dose and route of application (oral, IA, IV)...
June 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28322832/dapoxetine-induces-neuroprotective-effects-against-glutamate-induced-neuronal-cell-death-by-inhibiting-calcium-signaling-and-mitochondrial-depolarization-in-cultured-rat-hippocampal-neurons
#19
Imju Jeong, Ji Seon Yang, Yi Jae Hong, Hee Jung Kim, Sang June Hahn, Shin Hee Yoon
Selective serotonin reuptake inhibitors (SSRIs) have an inhibitory effect on various ion channels including Ca(2+) channels. We used fluorescent dye-based digital imaging, whole-cell patch clamping and cytotoxicity assays to examine whether dapoxetine, a novel rapid-acting SSRI, affect glutamate-induced calcium signaling, mitochondrial depolarization and neuronal cell death in cultured rat hippocampal neurons. Pretreatment with dapoxetine for 10min inhibited glutamate-induced intracellular free Ca(2+) concentration ([Ca(2+)]i) increases in a concentration-dependent manner (Half maximal inhibitory concentration=4...
March 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28298030/editorial-nimodipine-treatment
#20
Bob S Carter
No abstract text is available yet for this article.
February 24, 2017: Journal of Neurosurgery
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