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https://www.readbyqxmd.com/read/28215021/sluggish-cognitive-tempo-processing-speed-and-internalizing-symptoms-the-moderating-effect-of-age
#1
Lisa A Jacobson, Megan Geist, E Mark Mahone
Sluggish Cognitive Tempo (SCT) has been defined by a constellation of caregiver-reported symptoms that includes daydreaming, difficulty initiating and sustaining effort, lethargy, and physical underactivity. These symptoms have been observed in both typically developing children and in some children with Attention-Deficit/Hyperactivity Disorder (ADHD)-especially those with the predominantly inattentive presentation. Symptoms of SCT (typically identified via rating scales) appear separable from DSM inattentive ADHD symptoms, but have also been associated with internalizing symptoms...
February 18, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28214401/association-between-loss-of-bone-mass-due-to-short-sleep-and-leptin-sympathetic-nervous-system-activity
#2
Nagato Kuriyama, Masaaki Inaba, Etsuko Ozaki, Yutaro Yoneda, Daisuke Matsui, Kanae Hashiguchi, Teruhide Koyama, Komei Iwai, Isao Watanabe, Rika Tanaka, Chie Omichi, Shigeto Mizuno, Masao Kurokawa, Motoyuki Horii, Fumitoshi Niwa, Koichi Iwasa, Shinsuke Yamada, Yoshiyuki Watanabe
BACKGROUND: Sleep has been reported to be an important factor in bone metabolism, and sympathetic nervous system activity has been reported to regulate bone metabolism. In this study, we evaluated the association between sleep, sympathetic nervous system activity, and bone mass. METHODS: The study subjects were 221 individuals (108 males; 113 females; mean age: 55.1±7.0years) divided into two groups: those who slept for less than 6h a day (short sleep [SS] group), and those who slept 6h or longer (normal sleep [NS] group)...
February 10, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28213645/transcranial-direct-current-stimulation-modulates-neuronal-networks-in-attention-deficit-hyperactivity-disorder
#3
Anna Sotnikova, Cornelia Soff, Enzo Tagliazucchi, Katja Becker, Michael Siniatchkin
Anodal transcranial direct current stimulation (tDCS) of the prefrontal cortex has been repeatedly shown to improve working memory (WM). Since patients with attention deficit hyperactivity disorder (ADHD) are characterized by both underactivation of the prefrontal cortex and deficits in WM, the modulation of prefrontal activity with tDCS in ADHD patients may increase their WM performance as well as improve the activation and connectivity of the WM network. In the present study, this hypothesis was tested using a double-blind sham-controlled experimental design...
February 17, 2017: Brain Topography
https://www.readbyqxmd.com/read/28213111/childhood-maltreatment-is-associated-with-alteration-in-global-network-fiber-tract-architecture-independent-of-history-of-depression-and-anxiety
#4
Kyoko Ohashi, Carl M Anderson, Elizabeth A Bolger, Alaptagin Khan, Cynthia E McGreenery, Martin H Teicher
Childhood maltreatment is a major risk factor for psychopathology. It is also associated with alterations in the network architecture of the brain, which we hypothesized may play a significant role in the development of psychopathology. In this study, we analyzed the global network architecture of physically healthy unmedicated 18-25 year old subjects (n=262) using diffusion tensor imaging (DTI) MRI and tractography. Anatomical networks were constructed from fiber streams interconnecting 90 cortical or subcortical regions for subjects with no-to-low (n=122) versus moderate-to-high (n=140) exposure to maltreatment...
February 14, 2017: NeuroImage
https://www.readbyqxmd.com/read/28212798/protein-kinase-c-as-regulator-of-vascular-smooth-muscle-function-and-potential-target-in-vascular-disorders
#5
H C Ringvold, R A Khalil
Vascular smooth muscle (VSM) plays an important role in maintaining vascular tone. In addition to Ca(2+)-dependent myosin light chain (MLC) phosphorylation, protein kinase C (PKC) is a major regulator of VSM function. PKC is a family of conventional Ca(2+)-dependent α, β, and γ, novel Ca(2+)-independent δ, ɛ, θ, and η, and atypical ξ, and ι/λ isoforms. Inactive PKC is mainly cytosolic, and upon activation it undergoes phosphorylation, maturation, and translocation to the surface membrane, the nucleus, endoplasmic reticulum, and other cell organelles; a process facilitated by scaffold proteins such as RACKs...
2017: Advances in Pharmacology
https://www.readbyqxmd.com/read/28212375/epilepsy-associated-gene-nedd4-2-mediates-neuronal-activity-and-seizure-susceptibility-through-ampa-receptors
#6
Jiuhe Zhu, Kwan Young Lee, Kathryn A Jewett, Heng-Ye Man, Hee Jung Chung, Nien-Pei Tsai
The neural precursor cell expressed developmentally down-regulated gene 4-2, Nedd4-2, is an epilepsy-associated gene with at least three missense mutations identified in epileptic patients. Nedd4-2 encodes a ubiquitin E3 ligase that has high affinity toward binding and ubiquitinating membrane proteins. It is currently unknown how Nedd4-2 mediates neuronal circuit activity and how its dysfunction leads to seizures or epilepsies. In this study, we provide evidence to show that Nedd4-2 mediates neuronal activity and seizure susceptibility through ubiquitination of GluA1 subunit of the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor, (AMPAR)...
February 17, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28212067/the-treatment-of-severe-childhood-aggression-study-12-weeks-of-extended-blinded-treatment-in-clinical-responders
#7
Robert L Findling, Lisa Townsend, Nicole V Brown, L Eugene Arnold, Kenneth D Gadow, David J Kolko, Nora K McNamara, Devin S Gary, Dana B Kaplin, Cristan A Farmer, Heidi Kipp, Craig Williams, Eric M Butter, Oscar G Bukstein, Robert Rice, Kristin Buchan-Page, Brooke S G Molina, Michael G Aman
OBJECTIVES: Previous "Treatment of Severe Childhood Aggression" (TOSCA) reports demonstrated that many children with severe physical aggression and attention-deficit/hyperactivity disorder (ADHD) responded well to two randomized treatments (parent training [PT]+stimulant+placebo = Basic vs. PT+stimulant+risperidone = Augmented) for 9 weeks. An important clinical question is whether these favorable outcomes are maintained over longer times. METHODS: Clinical responders to the 9-week trial (n = 103/168), defined as Clinical Global Impressions (CGI)-Improvement of much/very much improved plus substantial reduction in parent ratings of disruptiveness, were followed another 12 weeks (21 weeks total) while remaining on blinded treatment...
February 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28211917/concentration-dependent-oligomerization-of-an-alpha-helical-antifreeze-polypeptide-makes-it-hyperactive
#8
Sheikh Mahatabuddin, Yuichi Hanada, Yoshiyuki Nishimiya, Ai Miura, Hidemasa Kondo, Peter L Davies, Sakae Tsuda
A supersoluble 40-residue type I antifreeze protein (AFP) was discovered in a righteye flounder, the barfin plaice (bp). Unlike all other AFPs characterized to date, bpAFP transitions from moderately-active to hyperactive with increasing concentration. At sub-mM concentrations, bpAFP bound to pyramidal planes of ice to shape it into a bi-pyramidal hexagonal trapezohedron, similarly to the other moderately-active AFPs. At mM concentrations, bpAFP uniquely underwent further binding to the whole ice crystal surface including the basal planes...
February 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211596/the-structure-of-adult-adhd
#9
Lenard A Adler, Stephen V Faraone, Thomas J Spencer, Patricia Berglund, Samuel Alperin, Ronald C Kessler
Although DSM-5 stipulates that symptoms of attention-deficit hyperactivity disorder (ADHD) are the same for adults as children, clinical observations suggest that adults have more diverse deficits than children in higher-level executive functioning and emotional control. Previous psychometric analyses to evaluate these observations have been limited in ways addressed in the current study, which analyzes the structure of an expanded set of adult ADHD symptoms in three pooled US samples: a national household sample, a sample of health plan members, and a sample of adults referred for evaluation at an adult ADHD clinic...
February 17, 2017: International Journal of Methods in Psychiatric Research
https://www.readbyqxmd.com/read/28211099/sedation-with-orally-administered-midazolam-in-elderly-dental-patients-with-major-neurocognitive-disorder
#10
Lena Rignell, Mona Mikati, Madeleine Wertsén, Catharina Hägglin
OBJECTIVE: The aim of this study was to evaluate acceptance of treatment after oral sedation with midazolam in dental patients with major neurocognitive disorder. BACKGROUND: Midazolam is commonly used as premedication in paediatric dentistry, oral surgery and people suffering from dental fear. Little is known about its use in other patient groups. METHODS: Dental and sedation records of 61 patients (64% women) sedated with midazolam were examined retrospectively...
February 17, 2017: Gerodontology
https://www.readbyqxmd.com/read/28210225/increased-apoptosis-in-the-paraventricular-nucleus-mediated-by-at1r-ras-erk1-2-signaling-results-in-sympathetic-hyperactivity-and-renovascular-hypertension-in-rats-after-kidney-injury
#11
Hongguo Zhu, Lishan Tan, Yumin Li, Jiawen Li, Minzi Qiu, Lanying Li, Mengbi Zhang, Min Liang, Aiqing Li
Background: The central nervous system plays a vital role in the development of hypertension, but the molecular regulatory mechanisms are not fully understood. This study aimed to explore signaling in the paraventricular nucleus (PVN) which might contribute to renal hypertension. Methods: Renal hypertension model was established by five-sixth nephrectomy operation (5/6Nx) in male Sprague Dawley rats. Ten weeks afterwards, they were random assigned to no treatment, or intracerebroventricular injection (ICV) with artificial cerebrospinal fluid, losartan [angiotensin II receptor type 1 (AT1R) antagonist], farnesylthiosalicylic acid (Ras inhibitor), PD98059 (MEK inhibitor), or SB203580 (p38 inhibitor) and Z-DEVD-FMK (caspase-3 inhibitor)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28209979/fractionating-impulsivity-neuropsychiatric-implications
#12
REVIEW
Jeffrey W Dalley, Trevor W Robbins
The ability to make decisions and act quickly without hesitation can be advantageous in many settings. However, when persistently expressed, impulsive decisions and actions are considered risky, maladaptive and symptomatic of such diverse brain disorders as attention-deficit hyperactivity disorder, drug addiction and affective disorders. Over the past decade, rapid progress has been made in the identification of discrete neural networks that underlie different forms of impulsivity - from impaired response inhibition and risky decision making to a profound intolerance of delayed rewards...
February 17, 2017: Nature Reviews. Neuroscience
https://www.readbyqxmd.com/read/28209774/methyl-donor-supplementation-alters-cognitive-performance-and-motivation-in-female-offspring-from-high-fat-diet-fed-dams
#13
Sarah E McKee, Nicola M Grissom, Christopher T Herdt, Teresa M Reyes
During gestation, fetal nutrition is entirely dependent on maternal diet. Maternal consumption of excess fat during pregnancy has been linked to an increased risk of neurologic disorders in offspring, including attention deficit/hyperactivity disorder, autism, and schizophrenia. In a mouse model, high-fat diet (HFD)-fed offspring have cognitive and executive function deficits as well as whole-genome DNA and promoter-specific hypomethylation in multiple brain regions. Dietary methyl donor supplementation during pregnancy or adulthood has been used to alter DNA methylation and behavior...
February 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28208668/redox-proteomics-and-platelet-activation-understanding-the-redox-proteome-to-improve-platelet-quality-for-transfusion
#14
REVIEW
Giona Sonego, Mélanie Abonnenc, Jean-Daniel Tissot, Michel Prudent, Niels Lion
Blood banks use pathogen inactivation (PI) technologies to increase the safety of platelet concentrates (PCs). The characteristics of PI-treated PCs slightly differ from those of untreated PCs, but the underlying reasons are not well understood. One possible cause is the generation of oxidative stress during the PI process. This is of great interest since reactive oxygen species (ROS) act as second messengers in platelet functions. Furthermore, there are links between protein oxidation and phosphorylation, another mechanism that is critical for cell regulation...
February 11, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28206689/working-memory-ability-and-early-drug-use-progression-as-predictors-of-adolescent-substance-use-disorders
#15
Atika Khurana, Daniel Romer, Laura M Betancourt, Hallam Hurt
AIMS: To test a neurobehavioral model of adolescent substance use disorder (SUD) resulting from an imbalance between a hyperactive reward motivation system and a hypoactive executive control system. Specifically, we tested (1) if early weakness in working memory (WM) and associated imbalance indicators of acting-without-thinking (AWT) and delay discounting (DD) predict SUD in late adolescence, and (2) if early drug use progression mediates this relation. DESIGN: Five waves of longitudinal data collected annually from 2005-2010, with a final follow-up in 2012...
February 16, 2017: Addiction
https://www.readbyqxmd.com/read/28203275/diagnostic-profiles-and-predictors-of-treatment-outcome-among-children-and-adolescents-attending-a-national-psychiatric-hospital-in-botswana
#16
Anthony A Olashore, Bechedza Frank-Hatitchki, Olorunfemi Ogunwobi
BACKGROUND: Attention is currently being drawn to child psychiatric care, most especially in the developed countries. This type of care is still rudimentary in the developing countries. Botswana is one of the African countries with good health care services but mental illness is given the low priority. Child and adolescent mental health care (CAMHC) is almost non-existent likely due to the dearth of research which would drive a policy change in this direction. Hence the need for this research as a step towards establishing a well-structured CAMHC...
2017: Child and Adolescent Psychiatry and Mental Health
https://www.readbyqxmd.com/read/28202705/moderators-and-predictors-of-response-to-behavior-therapy-for-tics-in-tourette-syndrome
#17
Denis G Sukhodolsky, Douglas W Woods, John Piacentini, Sabine Wilhelm, Alan L Peterson, Lily Katsovich, James Dziura, John T Walkup, Lawrence Scahill
OBJECTIVE: To examine moderators and predictors of response to behavior therapy for tics in children and adults with Tourette syndrome and chronic tic disorders. METHODS: Data from 2 10-week, multisite studies (1 in children and 1 in adults; total n = 248) comparing comprehensive behavioral intervention for tics (CBIT) to psychoeducation and supportive therapy (PST) were combined for moderator analyses. Participants (177 male, 71 female) had a mean age of 21.5 ± 13...
February 15, 2017: Neurology
https://www.readbyqxmd.com/read/28202482/hyperactive-delirium-following-administration-of-intra-articular-corticosteroid
#18
Leona Lally, Geraldine McCarthy, Karena Meehan
Intra-articular administration of corticosteroids is a commonly used treatment for osteoarthritis as well as other inflammatory disorders of the joints. It is well known that delirium and psychosis can arise following the administration of oral corticosteroids but there are few documented cases of the development of acute hyperactive delirium with psychosis following intra-articular administration. We describe a case of an 82-year-old female patient with moderate dementia who developed a delirium with psychosis which responded well to a first-generation antipsychotic...
February 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28201923/reexamining-adhd-related-self-reporting-problems-using-polynomial-regression
#19
Margaret H Sibley, Mileini Campez, Joseph S Raiker
Individuals with attention deficit hyperactivity disorder (ADHD) underreport symptoms compared with informants and objective measures. This study applied enhanced statistical methodology (polynomial regression) to the study of ADHD self-reporting to clarify what contributes to symptom underreporting by adolescents with ADHD ( N = 107; ages = 11-15 years). Polynomial regression models were conducted to test competing hypotheses about the nature of self-reporting problems. Traditional difference score models were nested within polynomial regression models to examine how modeling strategy influences results...
February 1, 2017: Assessment
https://www.readbyqxmd.com/read/28199935/surgical-management-of-a-giant-parathyroid-adenoma-through-minimal-invasive-parathyroidectomy-a-case-report
#20
Georgios Sahsamanis, Konstantinos Gkouzis, Stavros Samaras, Dionysios Pinialidis, Georgios Dimitrakopoulos
INTRODUCTION: Primary hyperparathyroidism is a common endocrine disorder mostly associated to parathyroid adenomas. Although those tend to be small in size, rare cases of giant parathyroid adenomas may be present. CASE PRESENTATION: A 42year old female was admitted in our department due to weakness and vague abdominal pain for the past 8 months. Preoperative laboratory exams indicated primary hyperparathyroidism as a cause to her symptomatology, with elevated values of parathormone and normal values of serum calcium...
January 31, 2017: International Journal of Surgery Case Reports
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