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https://www.readbyqxmd.com/read/28508355/neuroproteomics-studies-challenges-and-updates
#1
Naify Ramadan, Hussein Ghazale, Mohammad El-Sayyad, Mohamad El-Haress, Firas H Kobeissy
The Human Genome Project in 2003 has resulted in the complete sequence of ~99% of the human genome paving the road for the Human Proteome Project (HPP) assessing the full characterization of the translated protein map of the 20,300 protein-coding genes. Consequently, the emerging of the proteomics field has successfully been adopted as the method of choice for the proteome characterization. Proteomics is a term that is used to encompass multidisciplinary approaches combining different technologies that aim to study the entire spectrum of protein changes at a specific physiological condition...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28493018/emerging-role-of-mirna-in-attention-deficit-hyperactivity-disorder-a-systematic-review
#2
REVIEW
Saurabh Srivastav, Susanne Walitza, Edna Grünblatt
Attention deficit hyperactivity disorder (ADHD) is a neuropsychiatric disorder whose aetiology still remains elusive. Nevertheless, evidence supports a high genetic contribution that interacts with environmental factors, also known to modulate epigenetic processes. These epigenetic modulators are a class of non-coding RNAs, microRNAs (miRNAs), known as post-transcriptional regulators, which have emerged as prospective players in neuropsychiatric disorders since they play a role in brain development, synapse formation, and the fine-tuning of genes underlying synaptic and memory formation...
May 10, 2017: Attention Deficit and Hyperactivity Disorders
https://www.readbyqxmd.com/read/28477384/cognitive-deficits-caused-by-prefrontal-cortical-and-hippocampal-neural-disinhibition
#3
REVIEW
Tobias Bast, Marie Pezze, Stephanie McGarrity
We review recent evidence concerning the significance of inhibitory GABA transmission and of neural disinhibition, i.e. deficient GABA transmission, within prefrontal cortex and hippocampus for clinically relevant cognitive functions. Both regions support important cognitive functions, including attention and memory, and their dysfunction has been implicated in cognitive deficits characterizing neuropsychiatric disorders. GABAergic inhibition shapes cortico-hippocampal neural activity and, recently, prefrontal and hippocampal neural disinhibition has emerged as a pathophysiological feature of major neuropsychiatric disorders, especially schizophrenia and age-related cognitive decline...
May 6, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28458492/prevalence-of-hiv-associated-neurocognitive-deficit-among-hiv-positive-people-in-ethiopia-a-cross-sectional-study-at-ayder-referral-hospital
#4
Tilahun Belete, Girmaw Medfu, Ephrem Yemiyamrew
BACKGROUND: HIV associated neurocognitive deficit impairs motor activity, neuropsychiatric functioning, daily activity and work activity usually due to the immune suppression effect of the virus. Sub-Saharan region including Ethiopia is the region with the highest burden of HIV. However, a few studies are found on this aspect nationally. This study was aimed at determining the prevalence and the factors associated with cognitive impairment among HIV positive people in Ethiopia who attended Ayder Comprehensive Specialized Hospital...
January 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/28450060/endocannabinoid-modulation-of-dopamine-neurotransmission
#5
REVIEW
Dan Covey, Yolanda Mateo, David Sulzer, Joseph F Cheer, David M Lovinger
Dopamine (DA) is a major catecholamine neurotransmitter in the mammalian brain that controls neural circuits involved in the cognitive, emotional, and motor aspects of goal-directed behavior. Accordingly, perturbations in DA neurotransmission play a central role in several neuropsychiatric disorders. Somewhat surprisingly given its prominent role in numerous behaviors, DA is released by a relatively small number of densely packed neurons originating in the midbrain. The dopaminergic midbrain innervates numerous brain regions where extracellular DA release and receptor binding promote short- and long-term changes in postsynaptic neuron function...
April 24, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28434587/aligning-physiology-with-psychology-translational-neuroscience-in-neuropsychiatric-drug-discovery
#6
REVIEW
Robert A McArthur
This review presents an overview of some of the pre-clinical and clinical issues that have contributed to the failures of potential novel neuropsychiatric drugs, which have prompted a re-examination of the role of animal models of neuropsychiatric disorders. Advances both in basic neuroscience and technology have driven the development of animal models of aspects of neuropsychiatric disorders. Genetics and environmental factors have been the primary contributors to the development of new animal models. Neuroimaging has contributed to the search for biomarkers by which neuropsychiatric disorders may be identified and differentiated, its progression monitored and that the effects of therapy assessed...
May 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28433099/other-organ-involvement-and-clinical-aspects-of-wilson-disease
#7
Karolina Dzieżyc, Tomasz Litwin, Anna Członkowska
Wilson disease (WD) is a rare disorder of copper metabolism that presents mainly with hepatic and neuropsychiatric features. Copper accumulates not only in the liver and brain, but also in other organs. Liver injury can also be the cause of secondary impairment of other tissues. Therefore, the clinical manifestation of WD may be renal, cardiac, skin, osteoarticular, or endocrinologic and include other organ disturbances. Renal abnormalities include tubular dysfunction (e.g., renal tubular acidosis, aminoaciduria) and nephrolithiasis...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28418641/classics-in-chemical-neuroscience-ketamine
#8
Marshall W Tyler, Harmony B Yourish, Dawn F Ionescu, Stephen J Haggarty
Ketamine, a molecule of many faces, has contributed immeasurably to numerous realms of clinical practice and scientific inquiry. From anesthesia and analgesia to depression and schizophrenia, it continues to shed light on the molecular underpinnings of pain, consciousness, and the pathophysiology of neuropsychiatric disorders. In particular, research on ketamine's mechanism of action is providing new hope in the search for therapies for treatment-resistant depression and affords insights into disorders of glutamatergic dysfunction...
April 21, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28416027/pharmacological-and-non-pharmacological-treatment-preferences-of-healthcare-professionals-and-proxies-for-challenging-behaviors-in-patients-with-dementia
#9
Sarah I Janus, Jeannette G van Manen, Janine A van Til, Sytse U Zuidema, Maarten J IJzerman
BACKGROUND: Prescribing antipsychotics to patients with neuropsychiatric symptoms is a matter of concern. Physicians have to make treatment decisions for patients with dementia together with proxies and/or nurses. However, it is unknown whether physicians, nurses, and proxies' treatment preferences are aligned; hence this study. METHODS: Sixteen treatment attributes were selected to elicit the preferences of physicians and nurses. Ten of these attributes were used for the proxies...
April 18, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28412918/neurological-aspects-of-medical-use-of-cannabidiol
#10
Carmen Mannucci, Michele Navarra, Fabrizio Calapai, Elvira Ventura Spagnolo, Francesco Paolo Busardò, Roberto Da Cas, Francesca Menniti Ippolito, Gioacchino Calapai
BACKGROUND: Cannabidiol (CBD) is among the major secondary metabolites of Cannabis devoid of the delta-9-tetra-hydrocannabinol psychoactive effects. It is a resorcinol-based compound with a broad spectrum of potential therapeutic properties, including neuroprotective effects in numerous pathological conditions. CBD neuroprotection is due to its antioxidant and antiinflammatory activi-ties and the modulation of a large number of brain biological targets (receptors, channels) involved in the development and maintenance of neurodegenerative diseases...
April 13, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28409049/rivastigmine-as-a-symptomatic-treatment-for-apathy-in-parkinson-s-dementia-complex-new-aspects-for-this-riddle
#11
Rita Moretti, Paola Caruso, Matteo Dal Ben
Over 90% of PDD patients show at least one neuropsychiatric symptom (NPS); in the 60-70% two or more NPS are present. Their incidence is important in terms of prognosis and severity of pathology. However, among all NPS, apathy is often the most disturbing, associated with greater caregiver's burden. Similar to other NPS, apathy may be due to a dysfunction of the nigrostriatal pathway, even though, not all the PD patients become apathetic, indicating that apathy should not entirely be considered a dopamine-dependent syndrome, and in fact it might also be related to acetylcholine defects...
2017: Parkinson's Disease
https://www.readbyqxmd.com/read/28397449/the-neuropsychiatric-aspect-of-the-hcv-infection
#12
REVIEW
Magdalena Więdłocha, Piotr Marcinowicz, Dorota Sokalla, Bartłomiej Stańczykiewicz
HCV infection is significantly more prevalent in the population of psychiatric patients, drug addicts and people tending to undertake risky sexual behaviors than in the general population. This article presents a spectrum of psychopathological symptoms and psychological dysfunctions, an outline of current theories on the neuropathology and psychiatric aspects of HCV infection treatment. The unspecific character of the psychopathological symptoms in the HCV infection makes the process of thorough diagnostics and adequate treatment difficult, thus the specific and characteristic features have been emphasized...
January 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28391425/safety-tolerability-and-efficacy-of-drugs-for-treating-behavioural-insomnia-in-children-with-attention-deficit-hyperactivity-disorder-a-systematic-review-with-methodological-quality-assessment
#13
REVIEW
Shweta Anand, Henry Tong, Frank M C Besag, Esther W Chan, Samuele Cortese, Ian C K Wong
OBJECTIVE: A large proportion of paediatric patients with attention-deficit/hyperactivity disorder (ADHD) have associated sleep problems which not only affect the child's wellbeing but also impact family functioning. Management of sleep problems is consequently an important aspect of overall ADHD management in paediatric patients. Although some drugs are being used off-label for the management of paediatric insomnia, there is scant clinical evidence supporting their use. Our aim was to identify and assess the quality of published studies reporting the safety, tolerability and efficacy of drugs used for treating behavioural insomnia in children with ADHD...
April 8, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28391320/evidence-of-a-conserved-molecular-response-to-selection-for-increased-brain-size-in-primates
#14
Amy M Boddy, Peter W Harrison, Stephen H Montgomery, Jason A Caravas, Mary Ann Raghanti, Kimberley A Phillips, Nicholas I Mundy, Derek E Wildman
The adaptive significance of human brain evolution has been frequently studied through comparisons with other primates. However, the evolution of increased brain size is not restricted to the human lineage but is a general characteristic of primate evolution. Whether or not these independent episodes of increased brain size share a common genetic basis is unclear. We sequenced and de novo assembled the transcriptome from the neocortical tissue of the most highly encephalized nonhuman primate, the tufted capuchin monkey (Cebus apella)...
March 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28382017/disrupted-ultradian-activity-rhythms-and-differential-expression-of-several-clock-genes-in-interleukin-6-deficient-mice
#15
Francisco J Monje, Ana Cicvaric, Juan Pablo Acevedo Aguilar, Immanuel Elbau, Orsolya Horvath, Weifei Diao, Micaela Glat, Daniela D Pollak
The characteristics of the cycles of activity and rest stand out among the most intensively investigated aspects of circadian rhythmicity in humans and experimental animals. Alterations in the circadian patterns of activity and rest are strongly linked to cognitive and emotional dysfunctions in severe mental illnesses such as Alzheimer's disease (AD) and major depression (MDD). The proinflammatory cytokine interleukin 6 (IL-6) has been prominently associated with the pathogenesis of AD and MDD. However, the potential involvement of IL-6 in the modulation of the diurnal rhythms of activity and rest has not been investigated...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28325146/hypersexuality-as-a-neuropsychiatric-disorder-the-neurobiology-and-treatment-options
#16
Hatta Sidi, Muna Asiff, Jaya Kumar, Srijit Das, Nurul Hazwani Hatta, Cesar Alfonso
Hypersexuality refers to abnormally increased or extreme involvement in any sexual activity. It is clinically challenging, presents trans-diagnostically and there is extensive medical literature addressing nosology, pathogenesis and neuropsychiatric aspects. Classification includes deviant behaviours, diagnosable entities related to impulsivity, and obsessional phenomena. Some clinicians view an increase in sexual desire as 'normal' while psychodynamic theorists consider it ego-defensive at times alleviating unconscious anxiety rooted in intrapsychic conflicts...
March 21, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28321184/the-role-of-early-growth-response-1-egr1-in-brain-plasticity-and-neuropsychiatric-disorders
#17
REVIEW
Florian Duclot, Mohamed Kabbaj
It is now clearly established that complex interactions between genes and environment are involved in multiple aspects of neuropsychiatric disorders, from determining an individual's vulnerability to onset, to influencing its response to therapeutic intervention. In this perspective, it appears crucial to better understand how the organism reacts to environmental stimuli and provide a coordinated and adapted response. In the central nervous system, neuronal plasticity and neurotransmission are among the major processes integrating such complex interactions between genes and environmental stimuli...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28289829/subjective-memory-impairment-in-general-practice-short-overview-and-design-of-a%C3%A2-mixed-methods-study
#18
Michael Pentzek, Verena Leve, Verena Leucht
BACKGROUND: Public awareness for dementia is rising and patients with concerns about forgetfulness are not uncommon in general practice. For the general practitioner (GP) subjectively perceived memory impairment (SMI) also offers a chance to broach the issue of cognitive function with the patient. This may support GPs' patient-centered care in terms of a broader frailty concept. OBJECTIVE: What is SMI (definition, operationalization, prevalence and burden)? Which conceptions and approaches do GPs have regarding SMI? METHODS: Narrative overview of recent SMI criteria and results, selective utilization of results from a systematic literature search on GP dementia care, non-systematic search regarding SMI in general practice, deduction of a study design from the overview and development according to international standards...
March 13, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28289283/the-dopamine-hypothesis-of-bipolar-affective-disorder-the-state-of-the-art-and-implications-for-treatment
#19
REVIEW
A H Ashok, T R Marques, S Jauhar, M M Nour, G M Goodwin, A H Young, O D Howes
Bipolar affective disorder is a common neuropsychiatric disorder. Although its neurobiological underpinnings are incompletely understood, the dopamine hypothesis has been a key theory of the pathophysiology of both manic and depressive phases of the illness for over four decades. The increased use of antidopaminergics in the treatment of this disorder and new in vivo neuroimaging and post-mortem studies makes it timely to review this theory. To do this, we conducted a systematic search for post-mortem, pharmacological, functional magnetic resonance and molecular imaging studies of dopamine function in bipolar disorder...
May 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28285610/the-clinical-course-and-interrelations-of-dementia-related-symptoms
#20
Miriam L Haaksma, Jeannie-Marie S Leoutsakos, Jonne A E Bremer, Pauline Aalten, Inez H G B Ramakers, Frans R J Verhey, Marcel G M Olde Rikkert, René J F Melis
BACKGROUND: Dementia is a neurodegenerative syndrome that interferes with multiple aspects of life, including cognition, daily functioning, and behavior. Despite the large heterogeneity in symptom development, these three domains are seldom studied simultaneously. This study investigates how trajectories of these domains are interrelated within individuals over time, and how they in turn are related to dementia severity and quality of life (QoL). METHODS: We used data from a longitudinal clinical cohort study, including 331 dementia patients...
March 13, 2017: International Psychogeriatrics
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