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Total 310 results found since Jan 2013.

Out of the Frying Pan, Into the Fire: A Case of Heat Shock and Its Fatal Complications
Abstract: Exertional heat stroke incidence is on the rise and has become the third leading cause of death in high school athletes. It is entirely preventable, yet this is a case of a 15-year-old, 97-kg male football player who presented unresponsive and hyperthermic after an August football practice. His blood pressure was 80/30, and his pulse was 180. He had a rectal temperature of 107.3°F, and upon entering the emergency department, he was rapidly cooled in 40 minutes. As he progressed, he developed metabolic acidosis, elevated liver enzymes, a prolapsed mitral valve with elevated troponin levels, and worsening hypotens...
Source: Pediatric Emergency Care - December 1, 2014 Category: Emergency Medicine Tags: Illustrative Cases Source Type: research

Your Credit Rating Might Predict How Likely It Is You'll Have A Heart Attack
A new study has found that your credit rating may be able to predict how likely you are to have a heart attack or stroke. The multi-decade study, which was published last week in the journal Proceedings of the National Academy of Sciences, was performed by Duke University psychologists who looked at the cholesterol, blood pressure, diabetes status and smoking habits of over 1,000 New Zealanders -- and then compared their findings to those people’s credit ratings. The study found that people with lower credit scores were more likely to be at risk for cardiovascular disease. That, the study said, is because the same fa...
Source: Healthy Living - The Huffington Post - November 25, 2014 Category: Consumer Health News Source Type: news

Attention Deficit-Hyperactivity Disorder
(ADHD) information sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).
Source: NINDS Disorders: National Institute of Neurological Disorders and Stroke - October 26, 2014 Category: Neurology Source Type: research

Anti-apoptotic role of sonic hedgehog on blood platelets
Sonic hedgehog (Shh) is an essential morphogen involved in vertebrate organogenesis. Perturbation of Hh signaling is associated with pathological consequences like tumor formation and chronic lung fibrosis. Platelets are highly sensitive circulating blood cells responsible for hemostasis, while hyperactivity of these cells lead to morbidities like ischemic heart diseases and stroke. Despite being terminally differentiated cells with life span of 10-12 days, platelets have recently been shown to respond to Wnt ligand, another developmental signal similar to Shh.
Source: Thrombosis Research - September 25, 2014 Category: Hematology Authors: Sharda Kumari, Susheel N. Chaurasia, Kailash Kumar, Debabrata Dash Tags: Regular Article Source Type: research

Assessment of potential cardiovascular risks of methylphenidate in comparison with sibutramine: do we need a SCOUT (trial)?
Authors: Antel J, Albayrak O, Heusch G, Banaschewski T, Hebebrand J Abstract With the recent approval of methylphenidate (MPH) for treating attention-deficit/hyperactivity disorder (ADHD) in adults, the number of patients exposed will increase tremendously. The ongoing debate on the cardiovascular safety of MPH has triggered two large retrospective cohort studies in children and adolescents as well as in young to middle-aged adults. These studies looked into serious cardiovascular events (sudden cardiac death, acute myocardial infarction and stroke) as primary endpoints and concluded that MPH was safe after a mean ...
Source: European Archives of Psychiatry and Clinical Neuroscience - August 26, 2014 Category: Psychiatry Tags: Eur Arch Psychiatry Clin Neurosci Source Type: research

The spontaneously hypertensive rat/Izm (SHR/Izm) shows attention deficit/hyperactivity disorder-like behaviors but without impulsive behavior: Therapeutic implications of low-dose methylphenidate.
In this study, ADHD-like behaviors in SHR/Izm were evaluated compared to Wistar rats. SHR/Izm showed high locomotor activity in the habituation phase in a novel environment, although locomotor activity in the initial exploratory phase was low. In a behavioral test for attention, spontaneous alternation behavior in the Y-maze test was impaired in SHR/Izm. However, impulsive behavior in the elevated-plus maze test, which is designed to detect anxiety-related behavior but also reflects impulsivity for novelty seeking, was comparable to Wistar rats. Hyperactivity and inattention, detected as ADHD-like behaviors in SHR/Izm, wer...
Source: Behavioural Brain Research - August 20, 2014 Category: Neurology Authors: Kishikawa Y, Kawahara Y, Yamada M, Kaneko F, Kawahara H, Nishi A Tags: Behav Brain Res Source Type: research

'Not-so-minor' stroke: Lasting psychosocial consequences of anterior cingulate cortical ischemia in the rat.
Abstract Patients with small, non-debilitating strokes often report a reduction in quality of life due to persistent cognitive and emotional alterations. Stroke may directly damage limbic circuitry resulting in an impaired stress response, however the possibility that this may in part explain the prevalence of stroke comorbidity with mood disorders has yet to be determined. Here we systematically examine psychosocial consequences of prefrontal lesions targeting the left anterior cingulate cortex (ACC) using hormone assays and a behavioral test battery in adult rats to probe whether a small stroke could alter stres...
Source: Experimental Neurology - August 15, 2014 Category: Neurology Authors: Hewlett KA, Kelly MH, Corbett D Tags: Exp Neurol Source Type: research

The impact of constraint induced movement therapy on brain activation in chronic stroke patients with upper extremity paralysis: An fMRI study
This study is designed to explore the impact of constraint‐induced movement therapy (CIMT) on brain activation in chronic stroke patients with upper extremity paralysis and seek valuable predictors of recovery. Six chronic stroke patients with right hand dysfunction and nine healthy control subjects participated in the study. The patient's hand function was assessed by the Action Research Arm Test and statistical significance was determined by a paired Student's t‐tests. We conducted functional magnetic resonance imaging and analyzed the data using Analysis of Functional Neuroimages software. After CIMT, function of th...
Source: International Journal of Imaging Systems and Technology - August 13, 2014 Category: Radiology Authors: Bo Wen, Lin Ma, Changshui Weng Tags: Research Article Source Type: research

The Applications of Pharmacogenomics to Neurological Disorders.
Abstract The most common neurological disorders, including neurodegenerative diseases and psychiatric disorders, have received recent attention with regards to pharmacogenomics and personalized medicine. Here, we will focus on a neglected neurodegenerative disorder, cerebral ischemic stroke (CIS), and highlight recent advances in two disorders, Parkinson's disease (PD) and Alzheimer's diseases (AD), that possess both similar and distinct mechanisms in regards to therapeutic targets. Current attempts to link symptoms from other disorders to candidate genes have been effective in identifying candidate genes for stro...
Source: Current Molecular Medicine - August 11, 2014 Category: Molecular Biology Authors: Gilman C, McSweeney C, Mao Y Tags: Curr Mol Med Source Type: research

Intravenous methylphenidate: an unusual way to provoke ST-elevation myocardial infarction
Acute ST-T elevation is a sign of myocardial ischemia or infarction usually due to coronary artery atherosclerosis or coronary spasm. Coronary spasm may be spontaneous or can occur as a result of a drug that causes arterial spam. Ritalin, Novartis Pharmaceut. Corporation, USA (methylphenidate hydrochloride), a dopamine reuptake inhibitor, is an oral drug used to treat attention-deficit/hyperactivity disorder and narcolepsy. Sudden deaths, stroke, and myocardial infarction have been reported in adults taking stimulant drugs at usual dose for attention-deficit/hyperactivity disorder [1].
Source: The American Journal of Emergency Medicine - August 7, 2014 Category: Emergency Medicine Authors: Emile Hay, Vitaly Shklovski, Yossef Blaer, Vladimir Shlakhover, Amos Katz Tags: Case Report Source Type: research

Myocardial injury in a 41-year-old male treated with methylphenidate: a case report
Conclusions: When interpreting troponin results it is important to take into account the context of the patient's clinical presentation, including the possibility of adverse drug reactions. The adverse drug reaction could include a combination of vasospasm and/or increased oxygen demand due to tachycardia. This case should be borne in mind before a diagnosis of myocardial infarction is given, or a decision to perform invasive coronary angiography is made in patients that use methylphenidate or related substances. Cardiac magnetic resonance imaging could be of diagnostic value in such cases.
Source: BioMed Central - July 29, 2014 Category: Journals (General) Authors: Lisa Drange HoleJan Schjøtt Source Type: research

Joint hypermobility and autonomic hyperactivity: relevance to neurodevelopmental disorders
Conclusion We demonstrate for the first time that rates of hypermobility and symptoms of autonomic dysfunction are particularly high in adults with neurodevelopmental diagnoses. It is likely that the importance of hypermobility and autonomic dysfunction to the generation and maintenance of psychopathology in neurodevelopmental disorders is poorly appreciated. Work underway(autonomic testing, fMRI) will test the hypothesis that autonomic reactivity and interoceptive sensitivity predispose to the expression of psychiatric symptoms, particularly anxiety. It is further hypothesized that inefficient neural co-ordination of effe...
Source: Journal of Neurology, Neurosurgery and Psychiatry - July 9, 2014 Category: Neurosurgery Authors: Eccles, J., Iodice, V., Dowell, N., Owens, A., Hughes, L., Skipper, S., Lycette, Y., Humphries, K., Harrison, N., Mathias, C., Critchley, H. Tags: Neurogastroenterology, Genetics, Movement disorders (other than Parkinsons), Muscle disease, Neuromuscular disease, Stroke, Anxiety disorders (including OCD and PTSD), Child and adolescent psychiatry, Mood disorders (including depression), Fibromyalgia, M Source Type: research

Adult onset methylphenidate induced dyskinesia after stroke
Methylphenidate is a stimulant medication that is commonly used to treat attention-deficit/hyperactivity disorder (ADHD). It is also used as adjuvant therapy for improving disability after stroke. Recently, Moreau et al. reported that methylphenidate improved gait hypokinesia and freezing in patients with advanced Parkinson's disease (PD) . The most common side effects of methylphenidate are; insomnia, anorexia, weight loss, abdominal pain, headache, irritability, anxiety, tachycardia, hypertension, and motor tics. Dyskinesia as a side effect of methylphenidate is rare, and only a few cases have been reported . Most of th...
Source: Parkinsonism and Related Disorders - April 14, 2014 Category: Neurology Authors: Jeong Yeon Kim, Jong Sam Baik Tags: Letters to the Editor Source Type: research

Aberrant CaMKII activity in the medial prefrontal cortex is associated with cognitive dysfunction in ADHD model rats.
Abstract Attention-deficit/hyperactivity disorder (ADHD) is a heterogeneous neurobehavioral disorder accompanied by cognitive and learning deficits, which is prevalent among boys. Juvenile male stroke-prone spontaneously hypertensive rats (SHRSP) exhibit ADHD-like behaviors including cognitive deficits and represent one animal model of ADHD. Here, we define a mechanism underlying cognitive dysfunction observed in SHRSP. Acute methylphenidate (MPH: 1mg/kg, p.o.) administration to SHRSP significantly improved not only inattention in a Y-maze task but also cognitive dysfunction in a novel object recognition test. Int...
Source: Brain Research - February 19, 2014 Category: Neurology Authors: Yabuki Y, Shioda N, Maeda T, Hiraide S, Togashi H, Fukunaga K Tags: Brain Res Source Type: research

ADHD drugs not linked to increased stroke risk among children
Children who take medication to treat attention deficit hyperactivity disorder don't appear to be at increased stroke risk, according to a study.
Source: ScienceDaily Headlines - February 12, 2014 Category: Science Source Type: news