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methylphenidate adhd

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https://www.readbyqxmd.com/read/27910862/methylphenidate-enhances-early-stage-sensory-processing-and-rodent-performance-of-a-visual-signal-detection-task
#1
Rachel L Navarra, Brian D Clark, Andrew T Gargiulo, Barry D Waterhouse
Methylphenidate (MPH) is used clinically to treat attention-deficit/hyperactivity disorder (ADHD) and off-label as a performance enhancing agent in healthy individuals. MPH enhances catecholamine transmission via blockade of norepinephrine (NE) and dopamine (DA) reuptake transporters. However, it is not clear how this action impacts neural circuits performing cognitive and sensorimotor functions driving performance enhancement. The dorsal lateral geniculate nucleus (dLGN) is the primary thalamic relay for visual information from the retina to the cortex and is densely innervated by NE-containing fibers from the locus coeruleus (LC), a pathway known to modulate state-dependent sensory processing...
December 2, 2016: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27903419/short-term-efficacy-and-tolerability-of-methylphenidate-in-children-with-traumatic-brain-injury-and-attention-problems
#2
Ozalp Ekinci, Meltem Çobanoğulları Direk, Serkan Gunes, Halenur Teke, Nuran Ekinci, Fatma Yıldırım, Çetin Okuyaz
PURPOSE: This study aims to investigate the short-term efficacy and tolerability of immediate-release methylphenidate (IR-MPH) in children with a history of traumatic brain injury (TBI). METHODS: Twenty children with TBI (mean age: 12.7±3.1years) who had clinically significant attention deficit and/or hyperactivity-impulsivity symptoms and twenty children with primary Attention Deficit Hyperactivity Disorder (ADHD) (mean age: 12.3±3.05years) were included. Study measures, which included the Turgay DSM-IV based ADHD rating Scale (T-DSM-IV-S), Conners' Parent Rating Scale (CPRS), Conners' Teacher Rating Scale (CTRS-R) and Clinical Global Impression-Improvement Scale (CGI-I), were completed at the baseline for both of the groups...
November 28, 2016: Brain & Development
https://www.readbyqxmd.com/read/27895238/combined-modality-intervention-for-adhd-with-comorbid-reading-disorders-a-proof-of-concept-study
#3
Rosemary Tannock, Jan C Frijters, Rhonda Martinussen, Erin Jacquelyn White, Abel Ickowicz, Nancy J Benson, Maureen W Lovett
To evaluate the relative efficacy of two reading programs with and without adjunctive stimulant medication for children with attention-deficit/hyperactivity disorder and comorbid reading disorder (ADHD+RD). Sixty-five children (7-11 years in age) were assigned randomly to one of three intensive remedial academic programs (phonologically or strategy-based reading instruction, or general academic strategy and social skills training) in combination with either immediate-release methylphenidate or placebo. Multiple-blind procedures were used for medication/placebo, given twice daily...
November 28, 2016: Journal of Learning Disabilities
https://www.readbyqxmd.com/read/27893955/using-a-patient-centered-outcome-measure-to-test-methylphenidate-versus-placebo-in-children-with-autism-spectrum-disorder
#4
Lawrence Scahill, Karen Bearss, Rena Sarhangian, Christopher J McDougle, L Eugene Arnold, Michael G Aman, James T McCracken, Elaine Tierney, Scott Gillespie, Valentina Postorino, Benedetto Vitiello
OBJECTIVES: Parent rating scales are commonly used to evaluate change in clinical trials. Despite advantages, these measures may not capture parental impression of the child's most salient problems. We examine the use of parent target problems (PTPs) in a randomized trial of methylphenidate (MPH) in children with autism spectrum disorder and symptoms of attention-deficit/hyperactivity disorder. METHODS: This multisite, 4-week, randomized crossover trial compared three dose levels (low, medium, and high) of MPH with placebo...
November 28, 2016: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/27889580/methylphenidate-modulates-dorsal-raphe-neuronal-activity-behavioral-and-neuronal-recordings-from-adolescent-rats
#5
Holly Whitt, Natasha Kharas, Nachum Dafny
Methylphenidate (MPD) is a widely prescribed psychostimulants used for the treatment of attention deficit hyperactive disorder (ADHD). Unlike the psychostimulants cocaine and amphetamine, MPD does not exhibit direct actions on the serotonin transporter, however there is evidence suggesting that the therapeutic effects of MPD may be mediated in part by alterations in serotonin transmission. This study aimed to investigate the role of the dorsal raphe (DR) nucleus, one of the major sources of serotonergic innervation in the mammalian brain, in the response to MPD exposure...
November 23, 2016: Brain Research Bulletin
https://www.readbyqxmd.com/read/27887009/continuous-performance-test-is-sensitive-to-a-single-methylphenidate-challenge-in-preschool-children-with-adhd
#6
Miriam Peskin, Eliane Sommerfeld, Yael Basford, Shlomit Rozen, Gil Zalsman, Abraham Weizman, Iris Manor
OBJECTIVE: There is a lack of evidence-based diagnostic paradigms and personalized interventions for preschoolers with ADHD. This study aimed to evaluate the performance of preschoolers diagnosed with ADHD on a continuous performance test (CPT) before and after a single methylphenidate (MPH) challenge. METHOD: The Test of Variables of Attention (TOVA)-a CPT-was administered to 61 preschoolers (5.64 ± 0.69 years; 74% boys) with ADHD before and after a single MPH challenge (0...
November 24, 2016: Journal of Attention Disorders
https://www.readbyqxmd.com/read/27879551/no-superiority-of-treatment-with-osmotic-controlled-release-oral-delivery-system-methylphenidate-over-short-medium-acting-methylphenidate-preparations-in-the-rate-and-timing-of-injuries-in-children-with-attention-deficit-hyperactivity-disorder
#7
Pavel Golubchik, Arad Kodesh, Abraham Weizman
OBJECTIVES: Methylphenidate (MPH) treatment in patients with attention-deficit/hyperactivity disorder (ADHD) is reported to reduce the risk for injuries. In the present study, the rate and timing of injuries were compared among the various MPH preparations (4 and 6-8 vs 12 hour-acting) in children with ADHD. METHODS: This real-world retrospective study covered the years 2011 to 2013. Participants included 2042 youngsters (aged 4-18 years, 13.01 ± 3.2 years; 71...
November 22, 2016: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/27878809/telephone-assisted-self-help-for-parents-of-children-with-attention-deficit-hyperactivity-disorder-who-have-residual-functional-impairment-despite-methylphenidate-treatment-a-randomized-controlled-trial
#8
Christina Dose, Christopher Hautmann, Mareike Buerger, Stephanie Schuermann, Katrin Woitecki, Manfred Doepfner
BACKGROUND: Self-help parenting interventions have been shown to be effective in the management of children with attention-deficit/hyperactivity disorder (ADHD) and may be useful when there are barriers to face-to-face therapist-led parent trainings. Previous studies indicate that behavioral interventions might be a useful adjunct to medication in children with residual ADHD symptoms, and regarding comorbid oppositional symptoms and multiple domains of functional impairment. In the present study, we examined whether a telephone-assisted self-help (TASH) parenting behavioral intervention (written materials plus telephone counseling) enhanced the effects of methylphenidate treatment in children with ADHD...
November 23, 2016: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/27872863/attention-deficit-disorder-and-allergic-rhinitis-are-they-related
#9
Isaac Melamed, Melinda Heffron
The association between ADHD and allergy remains controversial. Our previous findings suggest that nerve growth factor may link the nervous and immune systems. The primary objective of this study was to determine if a combination of cetirizine + methylphenidate is effective in children with comorbid ADHD and allergic rhinitis. We also examined the role of nerve growth factor in these comorbidities. Our randomized, double-blind, placebo-controlled, crossover study enrolled 38 children diagnosed with comorbid ADHD and allergy using cetirizine (n = 12), sustained-release methylphenidate (n = 12), or cetirizine + methylphenidate (n = 14)...
2016: Journal of Immunology Research
https://www.readbyqxmd.com/read/27866408/prescribing-patterns-for-attention-deficit-hyperactivity-disorder-medications-among-children-and-adolescents-in-korea-2007-2011
#10
Inmyung Song, Ju-Young Shin
OBJECTIVES: This study analyzed the prevalence of attention deficit hyperactivity disorder (ADHD) medication use among children and adolescents in Korea between January 1, 2007 and December 31, 2011. METHODS: Using the Korea National Health Insurance claims database, we identified patients between one and 17 years of age who had at least one medical claim for the diagnosis of ADHD (International Classification of Diseases, 10th revision: F90.0). The annual prevalence of ADHD diagnoses was calculated, using national census data from Statistics Korea on the population aged between one and 17 years as the denominator...
2016: Epidemiology and Health
https://www.readbyqxmd.com/read/27864427/dyskinesia-in-treatment-naive-and-stimulant-treated-children-with-adhd
#11
Ágnes Keresztény, Gyöngyvér Ferenczi-Dallos, Szabina Velő, Júlia Gádoros, Judit Balázs
OBJECTIVE: Stimulants are safe and effective medications for the treatment of ADHD. There are a number of case studies that report stimulant-induced dyskinesia. The aim of this study was to compare dyskinesia in a treated and a treatment-naive group of children with ADHD, and a healthy control group. METHOD: Children aged 6 to 18 years were involved in the study (n = 158). Diagnosis of ADHD was measured with the Mini International Neuropsychiatric Interview Kid (MINI Kid)...
November 18, 2016: Journal of Attention Disorders
https://www.readbyqxmd.com/read/27859666/effectiveness-of-atomoxetine-and-methylphenidate-for-problematic-online-gaming-in-adolescents-with-attention-deficit-hyperactivity-disorder
#12
Jeong Ha Park, Young Sik Lee, Ji Hyun Sohn, Doug Hyun Han
OBJECTIVE: There is a high prevalence of problematic online gaming in adolescents with attention deficit hyperactivity disorder (ADHD). In the current study, we compared the effectiveness of atomoxetine (ATM) and methylphenidate (MPH) on problematic online gaming in adolescents with ADHD. METHODS: We recruited 86 adolescents diagnosed with ADHD together with Internet gaming disorder. These participants were divided into two treatment groups: 44 participants were treated with MPH for 12 weeks, and 42 participants were treated with ATM for 12 weeks...
November 2016: Human Psychopharmacology
https://www.readbyqxmd.com/read/27857045/long-term-pharmacotherapy-by-methylfenidate-or-atomoxetine-dat-1-10-10-adhd-children-in-correlation-with-results-of-the-imaging-methods
#13
(no author information available yet)
OBJECTIVES: ADHD is one of the most significant diagnostic units in child and adolescent psychiatry. The occurrence in children is 5-6% and 50-80% continued to adult age. The presence of individual genes (polymorphism) on particular symptoms and processes in ADHD are not known. It is estimated that ADHD symptoms are up to 80% to genetic. The higher density of resultant DAT 1 protein was observed in ADHD patients in comparison with controls. The question was if DAT 1 10/10 predicted bad prognoses in long term therapy...
September 18, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/27853928/d1-and-d2-specific-dopamine-antagonist-modulate-the-caudate-nucleus-neuronal-responses-to-chronic-methylphenidate-exposure
#14
Sidish Venkataraman, Catherine Claussen, Nachum Dafny
The psychostimulant, methylphenidate (MPD), is the first line treatment as a pharmacotherapy to treat behavioral disorders such as attention deficit hyperactivity disorder (ADHD). MPD is commonly misused in non-ADHD (normal) youth and young adults both as a recreational drug and for cognitive enhancing effects to improve their grades. MPD is known to act on the reward circuit; including the caudate nucleus (CN). The CN is comprised of medium spiny neurons containing largely dopamine (DA) D1 and D2 receptors...
November 16, 2016: Journal of Neural Transmission
https://www.readbyqxmd.com/read/27844288/methylphenidate-decreases-atp-levels-and-impairs-glutamate-uptake-and-na-k-atpase-activity-in-juvenile-rat-hippocampus
#15
Felipe Schmitz, Paula Pierozan, André F Rodrigues, Helena Biasibetti, Mateus Grings, Bruna Zanotto, Daniella M Coelho, Carmen R Vargas, Guilhian Leipnitz, Angela T S Wyse
The study of the long-term neurological consequences of early exposure with methylphenidate (MPH) is very important since this psychostimulant has been widely misused by children and adolescents who do not meet full diagnostic criteria for ADHD. The aim of this study was to examine the effect of early chronic exposure with MPH on amino acids profile, glutamatergic and Na(+),K(+)-ATPase homeostasis, as well as redox and energy status in the hippocampus of juvenile rats. Wistar male rats received intraperitoneal injections of MPH (2...
November 14, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27837176/chondrocyte-proliferation-viability-and-differentiation-is-declined-following-administration-of-methylphenidate-utilized-for-the-treatment-of-attention-deficit-hyperactivity-disorder
#16
F Gumustas, I Yilmaz, D Y Sirin, S A Gumustas, A G Batmaz, M Isyar, S Akkaya, M Mahirogullari
PURPOSE: Methylphenidate (MPH) derivative drugs are used because of psychostimulants effects on attention-deficit hyperactivity disorder in children and adults. As far as we know, toxic or anti-proliferative effects of MPH against cartilage tissue were not studied in the literature. The present study was carried out to investigate the possible effects of MPH on the proliferation, viability and differentiation of primary human chondrocytes, in vitro. METHODS: Monolayer primary chondrocyte cultures were prepared using osteochondral tissue obtained from patients who underwent a total knee prosthesis operation...
November 11, 2016: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/27833894/comparison-of-the-effects-of-methylphenidate-and-the-combination-of-methylphenidate-and-risperidone-in-preschool-children-with-attention-deficit-hyperactivity-disorder
#17
Parvin Safavi, Ali Hasanpour Dehkordi, Nasim Ghasemi
Attention-deficit hyperactivity disorder (ADHD) is a common psychiatric disorder among preschool children but the number of controlled clinical trials regarding psychopharmacological treatment in this age group is limited. The aim of this study was to compare methylphenidate with the combination of methylphenidate and risperidone in preschool children with ADHD. Forty-two preschool children, aged 3-6 years, diagnosed with ADHD by a child and adolescent psychiatrist according to the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition-Text Revision criteria, were enrolled in a 6-week, single-blind clinical trial and administered with methylphenidate (5-30 mg/dl) or the combination of methylphenidate and risperidone (0...
October 2016: Journal of Advanced Pharmaceutical Technology & Research
https://www.readbyqxmd.com/read/27828696/current-and-investigational-medication-delivery-systems-for-treating-attention-deficit-hyperactivity-disorder
#18
Rakesh Jain, Alain Katic
OBJECTIVE: To review currently available formulations and emphasize unmet needs in the pharmacologic management of attention-deficit/hyperactivity disorder (ADHD). DATA SOURCES: Publications and clinical trials were identified through PubMed and ClinicalTrials.gov, respectively. A Web-based search identified prescribing information for approved agents for treating ADHD, along with relevant guidelines and diagnostic criteria. STUDY SELECTION: The following search terms were used: (1) ADHD or attention-deficit/hyperactivity disorder or ADD or attention deficit hyperactivity disorder and/or (2) amphetamine or methylphenidate or atomoxetine or guanfacine or clonidine...
August 18, 2016: Primary Care Companion to CNS Disorders
https://www.readbyqxmd.com/read/27817164/comparative-treatment-patterns-healthcare-resource-utilization-and-costs-of-atomoxetine-and-long-acting-methylphenidate-among-children-and-adolescents-with-attention-deficit-hyperactivity-disorder-in-germany
#19
Peter Greven, Vanja Sikirica, Yaozhu J Chen, Tammy G Curtice, Charles Makin
BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) imposes a substantial burden on patients and their families. OBJECTIVE: A retrospective, propensity score-matched cohort study compared treatment patterns, healthcare resource utilization (HRU) and costs among children/adolescents with ADHD aged 6-17 years at treatment initiation (index) in Germany who received atomoxetine (ATX) or long-acting methylphenidate (LA-MPH) monotherapy. METHODS: Patients received at least one prescription for their index medication (ATX/LA-MPH) during 2006-2010; the first prescription marked the index date...
November 5, 2016: European Journal of Health Economics: HEPAC: Health Economics in Prevention and Care
https://www.readbyqxmd.com/read/27816940/does-methylphenidate-reduce-testosterone-levels-in-humans-a-prospective-study-in-children-with-attention-deficit-hyperactivity-disorder
#20
Liang-Jen Wang, Miao-Chun Chou, Wen-Jiun Chou, Min-Jing Lee, Pao-Yen Lin, Sheng-Yu Lee, Yi-Hsuan Lee
BACKGROUND: Animal studies and case reports have suggested that methylphenidate (MPH) exerts adverse effects on gonadal hormones. This study aimed to determine whether MPH alters testosterone levels in children with attention-deficit/hyperactivity disorder (ADHD) through comparison of those with or without MPH treatment. METHODS: This 4-week, nonrandomized, prospective study conducted in Taiwan included 203 ADHD patients with a mean age of 8.7 years (boys: 75.8%)...
November 5, 2016: International Journal of Neuropsychopharmacology
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