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Total 407 results found since Jan 2013.

Prothrombotic State in Atrial Fibrillation Patients With One Additional Risk Factor of the CHA2DS2-VASc Score (Beyond Sex)
ConclusionsA prothrombotic state (increased thrombin generation, denser fibrin clots, impaired fibrinolysis, and endothelial injury) characterizes patients with AF with 1 additional clinical stroke risk factor (beyond sex), with age 65-74 years being particularly associated with prothrombotic indices.RésuméContexteLa question de savoir si un état prothrombotique survient chez les patients atteints de fibrillation auriculaire (FA) à faible risque d’accident vasculaire cérébral (AVC) n’a pas été élucidée.MéthodologieNous avons étudié 118 patients atteints de FA présentant un score CHA2DS2-VASc (insuffisance...
Source: Canadian Journal of Cardiology - April 27, 2019 Category: Cardiology Source Type: research

Response to the article entitled 'Mood stabilisers and risk of stroke in bipolar disorder'.
Authors: Kuppili PP, Singhai K, Nebhinani N PMID: 31012409 [PubMed - in process]
Source: The British Journal of Psychiatry for Mental Science - April 25, 2019 Category: Psychiatry Tags: Br J Psychiatry Source Type: research

Beta Amyloid Deposition Is Not Associated With Cognitive Impairment in Parkinson's Disease
In this study, we used a well-validated visual assessment to clinically rate scans as being amyloid positive or negative (38). As there is not an accepted threshold based on standardized centiloid reference regions, we defined an amyloid positivity centiloid cut-off threshold in our sample. Our cut-off (CL = 31.3, SUVR = 1.21) corresponds well to the estimated value proposed by Rowe and colleagues (34) in the context of AD (CL = 25–30), however our estimated threshold may be biased by the low number of Aβ positive patients. Our results suggest a lower prevalence of amyloid-positive PDD individuals than in ...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research

Multifractal Desynchronization of the Cardiac Excitable Cell Network During Atrial Fibrillation. II. Modeling
In this study, we elaborate on a tentative interpretation of the observed intermittent dynamics during AF as the signature of synaptic plasticity. Typical individual GJC transition times between open and closed states were shown to be much longer than those of membrane polarization but compare well with membrane recovery time (≳ 100ms) (Spray et al., 1984; Neyton and Trautmann, 1986; Wang et al., 1992; Bukauskas and Verselis, 2004; Desplantez et al., 2007). Moreover, slow gating modulations have been evidenced due to cytoplasmic protons (low pH) and free calcium (Spray et al., 1984; Burt and Sray, 1988; Kumar and G...
Source: Frontiers in Physiology - April 23, 2019 Category: Physiology Source Type: research

Psychosis Polyrisk Score (PPS) for the Detection of Individuals At-Risk and the Prediction of Their Outcomes
Conclusions The combination of risk/protective factors encompassing genetic (PRS) and non-genetic information (PPS) holds promise for overcoming the epidemiological weakness of the CHR-P paradigm. The PPS conceptually and empirically developed here will facilitate future research in this field and hopefully advance our ability to detect individuals at-risk for psychosis and forecast their clinical outcomes. Ethics Statement This study was supported by the King's College London Confidence in Concept award from the Medical Research Council (MRC) (MC_PC_16048) to PF-P. This study also represents independent researc...
Source: Frontiers in Psychiatry - April 16, 2019 Category: Psychiatry Source Type: research

Exploring Training Effect in 42 Human Subjects Using a Non-invasive Sensorimotor Rhythm Based Online BCI
Conclusion In this study, we analyzed a pooled dataset consisting of 42 subjects’ three BCI training sessions. The behavioral performance results showed that there was a significant increase of BCI PVC accuracy (p = 0.004) and a marginal significant improvement of ITR (p = 0.05) in the third training session compared to the first session. No other significant difference of behavioral measures such as group average abort rate or feedback duration was found across the training sessions. Further analysis on the group average R2 value indicated that there was a significant difference of the R2 value on the first traini...
Source: Frontiers in Human Neuroscience - April 16, 2019 Category: Neuroscience Source Type: research

Functional MRI of Letter Cancellation Task Performance in Older Adults
Conclusion The present work is the first to identify neural correlates of the LCT using fMRI and tablet technology in a healthy aging population. Across all ages, the activation was found to be bilateral, including in the cerebellum, superior temporal lobe, precentral gyrus, frontal gyrus, and various occipital and parietal areas. With increasing age, performance generally decreased and brain activity was reduced in the supplementary motor area, middle and inferior frontal gyrus, middle occipital gyrus, putamen and cerebellum. Better LCT performance was correlated with increased activity in the middle frontal gyrus, and r...
Source: Frontiers in Human Neuroscience - April 15, 2019 Category: Neuroscience Source Type: research

Metabolic Effects of Antipsychotic Medications
Patients diagnosed with severe mental illnesses, such as schizophrenia and bipolar affective disorder, and mood disorders are often prescribed second-generation, or atypical, antipsychotics (SGAs) to help manage their conditions. The use of these medications is associated with significant adverse metabolic effects, including weight gain, glycemic dysfunction, and dyslipidemia.1,2 Furthermore, patients diagnosed with severe mental illnesses have significantly increased cardiovascular mortality and morbidity and are 1.5-times to 3-times more likely to suffer from a myocardial infarction or stroke when prescribed SGAs.
Source: The Journal for Nurse Practitioners - April 14, 2019 Category: Nursing Authors: J. Casey Elkins Tags: Prescription Pad Source Type: research

Role of TREK-1 in Health and Disease, Focus on the Central Nervous System
Conclusion and Perspectives Since their cloning 20 years ago, the physiological importance of TREK-1 channels has continued to grow (Figure 3). Today, TREK-1 channels have been shown to be important and their presence is essential in a number of physiopathological processes. Their involvement in these different processes demonstrate the necessity to design pharmacological modulators, activators or inhibitors, of these channels to correct any TREK-1-related dysfunctions. Despites a number of studies and many molecule screenings, only few putative new drugs were identified. The activators belonging to the ML and BL series ...
Source: Frontiers in Pharmacology - April 10, 2019 Category: Drugs & Pharmacology Source Type: research

Peridevice Leak After Left Atrial Appendage Closure: Incidence, Risk Factors, and Clinical Impact
ConclusionsThe PDL rate detected by CCTA after LAAC was high, especially in cases with a low device compression ratio (< 10%), but decreased over time. The incidence of MACE was quantitatively greater with PDL, but the difference was not statistically significant. Larger studies are needed to determine the clinical importance of PDL.RésuméIntroductionPeu d’études ont fait état des taux et des répercussions cliniques des fuites périprothétiques (FPP) après la fermeture de l’appendice auriculaire gauche (AAG) par voie percutanée.MéthodesNous avons inscrit de manière prospective tous les patients consécuti...
Source: Canadian Journal of Cardiology - March 30, 2019 Category: Cardiology Source Type: research

Mood Stabilizers and Stroke Risk: New Data Mood Stabilizers and Stroke Risk: New Data
Dr Peter Yellowlees talks about mood stabilizers and risk for stroke in bipolar disorder.Medscape Psychiatry
Source: Medscape Today Headlines - March 14, 2019 Category: Consumer Health News Tags: Psychiatry Commentary Source Type: news

Atorvastatin in the treatment of lithium-induced nephrogenic diabetes insipidus: the protocol of a randomized controlled trial
Lithium is the gold-standard treatment for bipolar disorder, is highly effective in major depressive disorder, and is being investigated for therapeutic benefits in dementia, stroke, and even cancer. Approximately 350,000 Canadians use lithium and more could benefit. Despite this, clinicians are avoiding lithium, largely due to fear of renal toxicity, including irreversible chronic kidney disease (CKD). Nephrogenic Diabetes Insipidus (NDI) occurs in 20% of lithium users and independently predicts a 2-3 times increased risk of CKD.
Source: The American Journal of Geriatric Psychiatry - February 28, 2019 Category: Geriatrics Authors: Jocelyn Fotso Soh, Gabriela Torres-Platas, Serge Beaulieu, Outi Mantere, Robert Platt, Istvan Mucsi, Sybille Saury, Suzane Renaud, Andrea Levinson, Ana Andreazza, Benoit Mulsant, Daniel Mueller, Ayal Schaffer, Annemiek Dols, Nancy Low, Pablo Cervantes, Na Tags: Poster Number: EI - 48 Source Type: research

Structure-activity relationship (SAR) studies of synthetic glycogen synthase kinase-3 β inhibitors: A critical review.
Structure-activity relationship (SAR) studies of synthetic glycogen synthase kinase-3β inhibitors: A critical review. Eur J Med Chem. 2018 Dec 31;164:448-470 Authors: Xu M, Wang SL, Zhu L, Wu PY, Dai WB, Rakesh KP Abstract Glycogen Synthase Kinase-3 (GSK-3) is a constitutively dynamic, omnipresent serine/threonine protein kinase regularly called as a "multitasking kinase" due to its pliable function in diverse signaling pathways. It exists in two isoforms i.e., GSK-3α and GSK-3β. Inhibition of GSK-3 may be useful in curing various diseases such as Alzheimer's disease, type II diabetes, mood disorde...
Source: European Journal of Medicinal Chemistry - December 31, 2018 Category: Chemistry Authors: Xu M, Wang SL, Zhu L, Wu PY, Dai WB, Rakesh KP Tags: Eur J Med Chem Source Type: research

Impact of a prudent lifestyle on the clinical outcomes of older men with bipolar disorder.
CONCLUSION: The excess morbidity and mortality of older men with BD seems to be mediated by non-prudent lifestyle practices. If future studies can demonstrate that this association is causal, then lifestyle interventions will need to become an integral part of the management of older adults with BD. PMID: 30596455 [PubMed - as supplied by publisher]
Source: Aging and Mental Health - December 31, 2018 Category: Geriatrics Authors: Almeida OP, Hankey GJ, Yeap BB, Flicker L Tags: Aging Ment Health Source Type: research

Increased Risk of Lymphoid Malignancy in Patients with Herpes Zoster: A Longitudinal Follow-up Study Using a National Cohort Study
Conclusion: Our study demonstrates that herpes zoster infection increases the risk of subsequent lymphoid malignancies irrespective of age and gender in the Korean population.DisclosuresNo relevant conflicts of interest to declare.
Source: Blood - November 21, 2018 Category: Hematology Authors: Lee, Y. K., Kim, M., Kim, H. J., Lim, H., Choi, H. G. Tags: 902. Health Services Research-Malignant Diseases: Quality Of Life Studies Source Type: research