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https://www.readbyqxmd.com/read/29747716/effects-of-antiparkinson-medication-on-cognition-in-parkinson-s-disease-a-systematic-review
#1
Marc-André Roy, Maxime Doiron, Jessica Talon-Croteau, Nicolas Dupré, Martine Simard
OBJECTIVE: This study aimed to systematically review the effects of currently prescribed antiparkinson medication on cognition in patients with mild-to-moderate Parkinson's disease (PD) who were either cognitively intact or mildly impaired. METHODS: English- and French-language studies published between 1969 and 2017 were accessed via MedLine, PsychNET, EMBASE and EBSCO databases. Methodological quality (MQ) was evaluated with the quality assessment instrument of the Cochrane Collaboration Depression, Anxiety and Neurosis Review (scores from 0% to 44% indicate very low quality; scores from 45% to 64% indicate low quality; scores from 65% to 84% indicate medium quality; and scores from 85% to 100% indicate high quality)...
May 11, 2018: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/29717617/selegiline-nanoformulation-in-attenuation-of-oxidative-stress-and-upregulation-of-dopamine-in-the-brain-for-the-treatment-of-parkinson-s-disease
#2
Shobhit Kumar, Shweta Dang, Kuldeep Nigam, Javed Ali, Sanjula Baboota
Objective of the present study was to determine whether the prepared nanoemulsion would be able to deliver selegiline to the brain by intranasal route improving its bioavailability. Antioxidant activity, pharmacokinetic parameters and dopamine concentration were determined. Oxidative stress models which had Parkinson's disease like symptoms were used to evaluate the antioxidant activity of nanoemulsion loaded with selegiline in vivo. The antioxidant activity was evaluated by 1,1-diphenyl-2-picryl-hydrazyl (DPPH) assay and reducing power assay which showed high scavenging efficiency for selegiline nanoemulsion compared to pure selegiline...
May 2, 2018: Rejuvenation Research
https://www.readbyqxmd.com/read/29679909/mechanisms-of-the-active-components-from-korean-pine-nut-preventing-and-treating-d-galactose-induced-aging-rats
#3
Jianmei Zhang, Weiwei Lin, Ruijun Wu, Yanmeng Liu, Kai Zhu, Jinyu Ren, Sufang Zhang, Xiaomei Ling
Age-related neuronal injury and oxidative damage are the predominant factors for neurodegenerative diseases like Alzheimer's disease (AD). The aim of this study was to explore whether chronic administration of d-galactose (d-gal) can cause neuronal injury and oxidative damage, and to investigate the neuroprotective and antioxidative effects of the active components (UPNO-1) from Korean pine nut (Pinus koraiensis). Two dosing regimens were designed, one for the evaluation of preventive effects in which the rats were simultaneously administrated d-gal and UPNO-1/fishoil for 12 weeks, the other for the evaluation of therapeutic effects in which the rats were given d-gal for 8 weeks before treated with UPNO-1/selegiline for 8 weeks...
April 18, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29671581/novel-mao-b-hit-inhibitors-using-multidimensional-molecular-modeling-approaches-and-application-of-binary-qsar-models-for-prediction-of-their-therapeutic-activity-and-toxic-effects
#4
Yusuf Serhat Is, Serdar Durdagi, Busecan Aksoydan, Mine Yurtsever
Monoamine oxidase (MAO) enzymes MAO-A and MAO-B play a critical role in the metabolism of monoamine neurotransmitters. Hence, MAO inhibitors are very important for the treatment of several neurodegenerative diseases such as Parkinson's disease (PD), Alzheimer's disease (AD), and amyotrophic lateral sclerosis (ALS). In this study, 256750 molecules from Otava Green Chemical Collection were virtually screened for their binding activities as MAO-B inhibitors. Two hit molecules were identified after applying different filters such as high docking scores and selectivity to MAO-B, desired pharmacokinetic profile predictions with binary QSAR models...
April 19, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29669501/biopharmaceutical-potential-of-selegiline-loaded-chitosan-nanoparticles-in-the-management-of-parkinson-s-disease
#5
Rajalakshmi Rukmangathen, Indira Muzib Yallamalli, Prasanna Raju Yalavarthi
Selegiline hydrochloride, a hydrophilic anti-Parkinson' moiety, undergoes extensive first-pass metabolism and has low bioavailability. A process to obtain of selegiline (SH) loaded chitosan nanoparticles was attempted to circumvent the above problem, through intranasal delivery. SH loaded polymeric nanoparticles were prepared by ionic gelation of chitosan with tripolyphosphate, and stabilized by tween 80/ poloxamer 188. The resulting nanoparticles (NPs) were characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry, entrapment efficiency, particle size, zeta potential and surface morphology by scanning electron microscopy...
April 18, 2018: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29626263/investigation-of-the-pharmaceutical-care-in-one-elderly-parkinson-s-disease-patient-with-psychotic-symptoms
#6
Chun-Ping Gu, Yue-Liang Xie, Yin-Juan Liao, Cui-Fang Wu, Sheng-Feng Wang, Yu-Lu Zhou, Su-Jie Jia
A 66-year-old male patient with a 10-year course of Parkinson's disease (PD) was admitted for hallucination lasting a half a month. After treatment with levodopa/carbidopa, selegiline, and piribedil, the patient's motor symptoms were improved while no significant effects were observed on psychotic symptoms. A clinical pharmacist analyzed the pharmacologic and pharmacokinetic characteristics of selegiline and piribedil, summarized the scheme of PD with psychotic symptoms in the literature, and discovered that selegiline might potentiate psychotic side effects of piribedil, while the use of levodopa/carbidopa cannot be ruled out either...
April 6, 2018: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/29570866/international-parkinson-and-movement-disorder-society-evidence-based-medicine-review-update-on-treatments-for-the-motor-symptoms-of-parkinson-s-disease
#7
REVIEW
Susan H Fox, Regina Katzenschlager, Shen-Yang Lim, Brandon Barton, Rob M A de Bie, Klaus Seppi, Miguel Coelho, Cristina Sampaio
OBJECTIVE: The objective of this review was to update evidence-based medicine recommendations for treating motor symptoms of Parkinson's disease (PD). BACKGROUND: The Movement Disorder Society Evidence-Based Medicine Committee recommendations for treatments of PD were first published in 2002 and updated in 2011, and we continued the review to December 31, 2016. METHODS: Level I studies of interventions for motor symptoms were reviewed. Criteria for inclusion and quality scoring were as previously reported...
March 23, 2018: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/29552749/miscellaneous-treatments-for-antipsychotic-induced-tardive-dyskinesia
#8
REVIEW
Karla Soares-Weiser, John Rathbone, Yusuke Ogawa, Kiyomi Shinohara, Hanna Bergman
BACKGROUND: Antipsychotic (neuroleptic) medication is used extensively to treat people with chronic mental illnesses. Its use, however, is associated with adverse effects, including movement disorders such as tardive dyskinesia (TD) - a problem often seen as repetitive involuntary movements around the mouth and face. This review, one in a series examining the treatment of TD, covers miscellaneous treatments not covered elsewhere. OBJECTIVES: To determine whether drugs, hormone-, dietary-, or herb-supplements not covered in other Cochrane reviews on TD treatments, surgical interventions, electroconvulsive therapy, and mind-body therapies were effective and safe for people with antipsychotic-induced TD...
March 19, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29550344/hplc-uv-assays-for-evaluation-of-inhibitors-of-mono-and-diamine-oxidases-using-novel-phenyltetrazolylalkanamine-substrates
#9
Kira Mergemeier, Matthias Lehr
Recently, we have described an HPLC-UV assay for the evaluation of inhibitors of plasma amine oxidase (PAO) using 6-(5-phenyl-2H-tetrazol-2-yl)hexan-1-amine (4) as a new type of substrate. Now we studied, whether this compound or homologues of it can also function as substrate for related amine oxidases, namely diamine oxidase (DAO), monoamine oxidase A (MAO A) and monoamine oxidase B (MAO B). Among these substances, 4 was converted by DAO with the highest rate. The best substrate for MAO A and B was 4-(5-phenyl-2H-tetrazol-2-yl)butan-1-amine (2)...
May 15, 2018: Analytical Biochemistry
https://www.readbyqxmd.com/read/29532287/meni%C3%A3-re-s-disease-combined-pharmacotherapy-with-betahistine-and-the-mao-b-inhibitor-selegiline-an-observational-study
#10
Michael Strupp, Ludwig Kraus, Franz Schautzer, Dan Rujescu
OBJECTIVES: Since oral betahistine has a very high first-pass effect (ca. 99%), metabolized by monoamine oxidases (MAO), the benefits of a high-dosage betahistine monotherapy were compared with those of a lower dosage of betahistine in combination with the MAO-B inhibitor (MAO-B) selegiline on the frequency of acute attacks of vertigo in patients with Menière's disease (MD). METHODS: Thirteen adults aged 40-75 years (mean 58.9 years; six females) had initially been treated with a high dosage of betahistine dihydrochloride for at least 1 year...
March 12, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29526790/selegiline-increases-on-time-without-exacerbation-of-dyskinesia-in-6-hydroxydopamine-lesioned-rats-displaying-l-dopa-induced-wearing-off-and-abnormal-involuntary-movements
#11
Hiroko Tsunekawa, Kazue Takahata, Motoki Okano, Toshiko Ishikawa, Hiroshi Satoyoshi, Tetsuya Nishimura, Naoya Hoshino, Shizuko Muraoka
3,4-Dihydroxy-l-phenylalanine (l-Dopa) remains the most effective drug for treating the motor symptoms of Parkinson's disease (PD). However, its long-term use is limited due to motor complications such as wearing-off and dyskinesia. A clinical study in PD patients with motor complications has demonstrated that selegiline, a monoamine oxidase type B inhibitor, is effective in reducing off time without worsening dyskinesia, although another study has shown worsening dyskinesia. Here, using unilateral 6-hydroxydopamine-lesioned rats showing degeneration of nigrostriatal dopaminergic neurons and l-Dopa-induced motor complications, we determined the efficacy of selegiline in controlling l-Dopa-induced motor fluctuations and exacerbated dyskinesia...
March 8, 2018: Behavioural Brain Research
https://www.readbyqxmd.com/read/29460165/efficacy-and-safety-of-drugs-for-attention-deficit-hyperactivity-disorder-in-children-and-adolescents-a-network-meta-analysis
#12
Sarah C O S Padilha, Suzane Virtuoso, Fernanda S Tonin, Helena H L Borba, Roberto Pontarolo
The aim of this study is to gather evidence of head-to-head double-blind randomized-controlled trials on the efficacy and safety of available treatments for attention deficit hyperactivity disorder (ADHD) in children and adolescents. A systematic review was conducted by two independent reviewers in ten electronic databases (PROSPERO register CRD42016043239). Methodological quality of included studies was evaluated according to the Jadad scale. Network meta-analyses were performed including double-blinded head-to-head trials comparing active allopathic drugs in patients (0-18 years old) diagnosed with ADHD...
February 19, 2018: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/29441766/-identification-of-methamphetamine-abuse-and-selegiline-use%C3%AF-chiral-analysis-of-methamphetamine-and-amphetamine-in-urine
#13
P Xiang, J Bu, Z Qiao, X Y Zhuo, H J Wu, M Shen
OBJECTIVES: To study the content variation of selegiline and its metabolites in urine, and based on actual cases, to explore the feasibility for the identification of methamphetamine abuse and selegiline use by chiral analysis. METHODS: The urine samples were tested by chiral separation and LC-MS/MS method using CHIROBIOTIC™ V2 chiral liquid chromatography column. The chiral analysis of methamphetamine and amphetamine were performed on the urine samples from volunteers of selegiline use and drug addicts whom suspected taking selegiline...
December 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29432286/effect-of-concomitant-medications-on-the-safety-and-efficacy-of-extended-release-carbidopa-levodopa-ipx066-in-patients-with-advanced-parkinson-disease-a-post-hoc-analysis
#14
Peter A LeWitt, Leo Verhagen Metman, Robert Rubens, Sarita Khanna, Sherron Kell, Suneel Gupta
OBJECTIVES: Extended-release (ER) carbidopa-levodopa (CD-LD) (IPX066/RYTARY/NUMIENT) produces improvements in "off" time, "on" time without troublesome dyskinesia, and Unified Parkinson Disease Rating Scale scores compared with immediate-release (IR) CD-LD or IR CD-LD plus entacapone (CLE). Post hoc analyses of 2 ER CD-LD phase 3 trials evaluated whether the efficacy and safety of ER CD-LD relative to the respective active comparators were altered by concomitant medications (dopaminergic agonists, monoamine oxidase B [MAO-B] inhibitors, or amantadine)...
March 2018: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/29417334/pharmacological-aspects-of-the-neuroprotective-effects-of-irreversible-mao-b-inhibitors-selegiline-and-rasagiline-in-parkinson-s-disease
#15
REVIEW
Éva Szökő, Tamás Tábi, Peter Riederer, László Vécsei, Kálmán Magyar
The era of MAO-B inhibitors dates back more than 50 years. It began with Kálmán Magyar's outstanding discovery of the selective inhibitor, selegiline. This compound is still regarded as the gold standard of MAO-B inhibition, although newer drugs have also been introduced to the field. It was revealed early on that selective, even irreversible inhibition of MAO-B is free from the severe side effect of the non-selective MAO inhibitors, the potentiation of tyramine, resulting in the so-called 'cheese effect'...
February 7, 2018: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29400049/ratiometric-near-infrared-fluorescent-probe-for-synergistic-detection-of-monoamine-oxidase-b-and-its-contribution-to-oxidative-stress-in-cell-and-mice-aging-models
#16
Rui Wang, Xiaoyue Han, Jinmao You, Fabiao Yu, Lingxin Chen
As new biomarkers, monoamine oxidases (MAOs) play important roles in maintaining the homeostasis of biogenic amines via catalyzing the oxidation of biogenic amines to corresponding aldehydes with the generation of reactive oxygen species (ROS). MAOs have two isoforms, MAO-A and MAO-B. MAO-A is considered to be a major factor of neuropsychiatric and depressive disorders. However, MAO-B is thought to be involved in several neurodegenerative diseases. Therefore, to explore their distinct roles in different diseases, the selective detection of MAOs is essential...
March 20, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29399337/neuroprotective-effects-of-selegiline-on-rat-neural-stem-cells-treated-with-hydrogen-peroxide
#17
Alireza Abdanipour, Iraj Jafari Anarkooli, Saeed Shokri, Mehrdad Ghorbanlou, Vahid Bayati, Reza Nejatbakhsh
Oxidative stress and reactive oxygen species generation have been implicated in the pathogenesis of several neurological disorders including Parkinson's disease, Alzheimer's disease, amyotrophic lateral sclerosis and multiple sclerosis. In the present study, the neuroprotective effects of selegiline against hydrogen peroxide-induced oxidative stress in hippocampus-derived neural stem cells (NSCs) were evaluated. NSCs isolated from neonatal Wistar rats were pretreated with different doses of selegiline for 48 h and then exposed to 125 µM H2O2 for 30 min...
January 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29379007/dual-catalysis-for-enantioselective-convergent-synthesis-of-enantiopure-vicinal-amino-alcohols
#18
Chen-Xi Ye, Yared Yohannes Melcamu, Heng-Hui Li, Jiang-Tao Cheng, Tian-Tian Zhang, Yuan-Ping Ruan, Xiao Zheng, Xin Lu, Pei-Qiang Huang
Enantiopure vicinal amino alcohols and derivatives are essential structural motifs in natural products and pharmaceutically active molecules, and serve as main chiral sources in asymmetric synthesis. Currently known asymmetric catalytic protocols for this class of compounds are still rare and often suffer from limited scope of substrates, relatively low regio- or stereoselectivities, thus prompting the development of more effective methodologies. Herein we report a dual catalytic strategy for the convergent enantioselective synthesis of vicinal amino alcohols...
January 29, 2018: Nature Communications
https://www.readbyqxmd.com/read/29368409/the-effect-of-banisteriopsis-caapi-b-%C3%A2-caapi-on-the-motor-deficits-in-the-mptp-treated-common-marmoset-model-of-parkinson-s-disease
#19
Ria Fisher, Louise Lincoln, Michael J Jackson, Vincenzo Abbate, Peter Jenner, Robert Hider, Andrew Lees, Sarah Rose
Banisteriopsis caapi (B. caapi) contains harmine, harmaline, and tetrahydroharmine, has monoamine oxidase inhibitory activity, and has reported antiparkinsonian activity in humans when imbibed as a tea; however, its effects are poorly documented. For this reason, motor function was assessed in 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine-treated common marmosets following administration of B. caapi extract (28.4-113.6 mg/kg; po), harmine (0.1 and 0.3 mg/kg; sc), and selegiline (10 mg/kg; sc), alone or with a submaximal dose of L-3,4-dihydroxyphenylalanine (L-DOPA; 4-7 mg/kg)...
January 24, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29309800/partial-reversal-of-the-effort-related-motivational-effects-of-tetrabenazine-with-the-mao-b-inhibitor-deprenyl-selegiline-implications-for-treating-motivational-dysfunctions
#20
Hector Contreras-Mora, Margaret A Rowland, Samantha E Yohn, Merce Correa, John D Salamone
People with depression and Parkinsonism frequently show effort-related motivational symptoms, such as anergia, psychomotor retardation, and fatigue. Tasks that assess effort-related choice are being used as animal models of these motivational symptoms. The present studies characterized the ability of monoamine oxidase (MAO) inhibitors with varying selectivity profiles to reverse the low effort bias induced by the monoamine storage inhibitor tetrabenazine. Tetrabenazine produces depressive symptoms in humans, and because of its selective inhibition of VMAT-2, it preferentially depletes DA at low doses...
March 2018: Pharmacology, Biochemistry, and Behavior
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