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https://www.readbyqxmd.com/read/28646712/prediction-of-vocational-participation-and-global-role-functioning-in-help-seeking-young-adults-from-neurocognitive-demographic-and-clinical-variables
#1
Alice J Cairns, David J Kavanagh, Frances Dark, Steven M McPhail
BACKGROUND: The purpose of this study was to investigate neurocognitive, demographic and clinical correlates of vocational participation among a sample of young help-seeking adults. METHODS: Young people (18-25 years) accessing an early intervention youth health service participated. The Global Functioning: Role scale and level of vocational participation, participant characteristics (age, gender, socioeconomic background and family history of serious mental illness), distress, psychotic-like experiences, substance use, and mental health diagnoses were recorded...
June 13, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28645025/decreased-functional-connectivity-and-disrupted-neural-network-in-the-prefrontal-cortex-of-affective-disorders-a-resting-state-fnirs-study
#2
Huilin Zhu, Jie Xu, Jiangxue Li, Hongjun Peng, Tingting Cai, Xinge Li, Shijing Wu, Wei Cao, Sailing He
BACKGROUND: Affective disorders (AD) have been conceptualized as neural network-level diseases. In this study, we utilized functional near infrared spectroscopy (fNIRS) to investigate the spontaneous hemodynamic activities in the prefrontal cortex (PFC) of the AD patients with or without medications. METHODS: 42 optical channels were applied to cover the superior frontal gyrus (SFG), middle frontal gyrus (MFG), and inferior frontal gyrus (IFG), which constitute one of the most important affective networks of the brain...
June 17, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28644998/olfactory-identification-deficit-predicts-white-matter-tract-impairment-in-alzheimer-s-disease
#3
Matthew R Woodward, Michael G Dwyer, Niels Bergsland, Jesper Hagemeier, Robert Zivadinov, Ralph Hb Benedict, Kinga Szigeti
Olfactory identification deficit (OID) has been associated with both aging and Alzheimer's disease (AD). In the context of an amnestic disorders, OID predicts conversion to AD. Neuroanatomical correlates could increase specificity and sensitivity and elucidate the mechanistic differences between OID in AD and aging. Cross-sectional analysis of white matter microstructural changes was performed using diffusion tensor imaging (DTI) and tract-based-spatial-statistics in amnestic mild cognitive impairment (aMCI), AD and normal controls (NC) in 66 subjects (26 AD, 15 aMCI, 25 NC)...
June 9, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28644490/potentiating-role-of-copper-on-spatial-memory-deficit-induced-by-beta-amyloid-and-evaluation-of-mitochondrial-function-markers-in-the-hippocampus-of-rats
#4
Ladan Behzadfar, Mohammad Abdollahi, Omid Sabzevari, Rohollah Hosseini, Ahmad Salimi, Parvaneh Naserzadeh, Mohammad Sharifzadeh, Jalal Pourahmad
Mounting evidence suggests that copper, a crucial element in normal brain function, plays an important role in the etiology of Alzheimer's disease, which is known as a neurodegenerative mitochondrial disorder. However, the precise mechanisms of its effects on cognitive and mitochondrial functions through the CNS have not been thoroughly recognized yet. In this study, we aimed to investigate the long-term (3-week) effects of copper sulfate (50, 100 and 200 mg kg(-1) day(-1)) exposure on learning and memory as well as on mitochondrial function in the hippocampus of rats in the presence and absence of beta amyloid (1 μg μl(-1) per side) intrahippocampally (IH)...
June 23, 2017: Metallomics: Integrated Biometal Science
https://www.readbyqxmd.com/read/28643955/diffusion-tensor-imaging-of-normal-appearing-white-matter-in-patients-with-neuromyelitis-optica-spectrum-disorder-and-multiple-sclerosis
#5
S-H Kim, K Kwak, J-W Hyun, A Joung, S H Lee, Y-H Choi, J-M Lee, H J Kim
BACKGROUND AND PURPOSE: The occult changes in normal-appearing white matter (NAWM) were investigated and compared amongst patients with neuromyelitis optica spectrum disorder (NMOSD), patients with multiple sclerosis (MS) and healthy controls (HCs) by applying tract-based spatial statistics to diffusion tensor imaging (DTI) data. METHODS: Diffusion tensor imaging was performed with a 3-T scanner in 93 patients with NMOSD, 53 patients with MS and 43 HCs. Voxel-wise statistical analyses of the DTI data were performed using tract-based spatial statistics...
July 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28642940/mass-spectrometry-imaging-for-clinical-research-latest-developments-applications-and-current-limitations
#6
REVIEW
Pierre-Maxence Vaysse, Ron M A Heeren, Tiffany Porta, Benjamin Balluff
Mass spectrometry is being used in many clinical research areas ranging from toxicology to personalized medicine. Of all the mass spectrometry techniques, mass spectrometry imaging (MSI), in particular, has continuously grown towards clinical acceptance. Significant technological and methodological improvements have contributed to enhance the performance of MSI recently, pushing the limits of throughput, spatial resolution, and sensitivity. This has stimulated the spread of MSI usage across various biomedical research areas such as oncology, neurological disorders, cardiology, and rheumatology, just to name a few...
June 23, 2017: Analyst
https://www.readbyqxmd.com/read/28642096/pine-needle-extract-prevents-hippocampal-memory-impairment-in-acute-restraint-stress-mouse-model
#7
Jin-Seok Lee, Hyeong-Geug Kim, Hye-Won Lee, Won-Yong Kim, Yo-Chan Ahn, Chang-Gue Son
ETHNOPHARMACOLOGICAL RELEVANCE: The Pinus densiflora leaf has been traditionally used to treat mental health disorders as a traditional Chinese medicine. Here we examined the ethnopharmacological relevance of pine needle on memory impairment caused by stress. AIM OF THE STUDY: To elucidate the possible modulatory actions of 30% ethanolic pine needle extract (PNE) on stress-induced hippocampal excitotoxicity, we adopted an acute restraint stress mouse model. MATERIALS AND METHODS: Mice were orally administered with PNE (25, 50, or 100mg/kg) or ascorbic acid (100mg/kg) for 9 days, and were then subjected to restraint stress (6h/day) for 3 days (from experimental day 7 to 9)...
June 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28641949/reduced-protein-expressions-of-cytomembrane-gabaar%C3%AE-3-at-different-postnatal-developmental-stages-of-rats-exposed-prenatally-to-valproic-acid
#8
Yixin Li, Yang Zhou, Li Peng, Yong Zhao
Decreased inhibition plays an extremely important role in pathogenesis of autism spectrum disorder (ASD). Therefore, we aimed to determine whether expression levels of the γ-aminobutyric acid type A receptor β3 subunit (GABAARβ3), K(+)-Cl(-) cotransporter 2 (KCC2), and Na(+)-K(+)-Cl(-) cotransporter 1 (NKCC1) related to inhibition transmission are changed in a sodium valproate-induced rat model of ASD. Decreased expression levels of membrane GABAARβ3 (m-GABAARβ3) and KCC2 as well as increased endocytosis of GABAARs were found in the model group...
June 19, 2017: Brain Research
https://www.readbyqxmd.com/read/28636895/neurocognitive-characteristics-of-youth-with-noncomorbid-and-comorbid-forms-of-conduct-disorder-and-attention-deficit-hyperactivity-disorder
#9
Andrea L Glenn, Rheanna J Remmel, Min Yee Ong, Nikki S J Lim, Rebecca P Ang, A Hunter Threadgill, Nicole Ryerson, Adrian Raine, Daniel Fung, Yoon Phaik Ooi
OBJECTIVE: Studies investigating neurocognitive deficits in youth with conduct disorder (CD) and attention deficit hyperactivity disorder (ADHD) are often confounded by the high rates of comorbidity between the two. METHOD: Neurocognitive functioning was examined in three diagnostic groups (ADHD only, CD only, comorbid ADHD and CD) matched by age, sex, IQ, and medication status (n=28-32 per group). RESULTS: No significant differences emerged between the diagnostic groups on measures of risk-taking or response inhibition...
June 8, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28636607/three-dimensional-cell-shapes-and-arrangements-in-human-sweat-glands-as-revealed-by-whole-mount-immunostaining
#10
Ryuichiro Kurata, Sugiko Futaki, Itsuko Nakano, Fumitaka Fujita, Atsushi Tanemura, Hiroyuki Murota, Ichiro Katayama, Fumihiro Okada, Kiyotoshi Sekiguchi
Because sweat secretion is facilitated by mechanical contraction of sweat gland structures, understanding their structure-function relationship could lead to more effective treatments for patients with sweat gland disorders such as heat stroke. Conventional histological studies have shown that sweat glands are three-dimensionally coiled tubular structures consisting of ducts and secretory portions, although their detailed structural anatomy remains unclear. To better understand the details of the three-dimensional (3D) coiled structures of sweat glands, a whole-mount staining method was employed to visualize 3D coiled gland structures with sweat gland markers for ductal luminal, ductal basal, secretory luminal, and myoepithelial cells...
2017: PloS One
https://www.readbyqxmd.com/read/28633346/tetramethylpyrazine-reverses-intracerebroventricular-streptozotocin-induced-memory-deficits-by-inhibiting-gsk-3%C3%AE
#11
Fen Lu, Xu Li, Wei Li, Ke Wei, Yong Yao, Qianlin Zhang, Xinliang Liang, Jiewen Zhang
Brain dysfunction, especially cognitive impairment, is one of the main complications in Alzheimer's disease (AD), which threatens the health of 46.8 million people worldwide. At present, the pathogenesis of cognitive dysfunction is only partially understood, and effective therapies for memory loss in AD remain elusive. Tetramethylpyrazine (TMP) is one of the major bioactive compounds purified from Chuanxiong, a Chinese herb used for the treatment of neurovascular and cardiovascular diseases. The neuroprotective properties of TMP are evident in some neurodegenerative diseases, including Parkinson's disease...
June 15, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28632743/in-silico-assessment-of-the-effects-of-quinidine-disopyramide-and-e-4031-on-short-qt-syndrome-variant-1-in-the-human-ventricles
#12
Cunjin Luo, Kuanquan Wang, Henggui Zhang
AIMS: Short QT syndrome (SQTS) is an inherited disorder associated with abnormally abbreviated QT intervals and an increased incidence of atrial and ventricular arrhythmias. SQT1 variant (linked to the rapid delayed rectifier potassium channel current, IKr) of SQTS, results from an inactivation-attenuated, gain-of-function mutation (N588K) in the KCNH2-encoded potassium channels. Pro-arrhythmogenic effects of SQT1 have been well characterized, but less is known about the possible pharmacological antiarrhythmic treatment of SQT1...
2017: PloS One
https://www.readbyqxmd.com/read/28632038/spatial-navigation-deficits-in-amnestic-mild-cognitive-impairment-with-neuropsychiatric-comorbidity
#13
Roxanne C Keynejad, Hana Marková, Kamila Šiffelová, Naveen Kumar, Kamil Vlček, Jan Laczó, Ellen M Migo, Jakub Hort, Michael D Kopelman
AIMS: To find out whether neuropsychiatric comorbidity (comMCI) influences spatial navigation performance in amnestic mild cognitive impairment (aMCI). METHODS: We recruited aMCI patients with (n = 21) and without (n = 21) neuropsychiatric comorbidity or alcohol abuse, matched for global cognitive impairment and cognitively healthy elderly participants (HE, n = 22). They completed the Mini-Mental State Examination and a virtual Hidden Goal Task in egocentric, allocentric, and delayed recall subtests...
February 28, 2017: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
https://www.readbyqxmd.com/read/28627117/the-cognitive-features-of-idiopathic-and-dyt1-dystonia
#14
REVIEW
Marjan Jahanshahi, Mariam Torkamani
Dystonia is a common movement disorder. In this paper, we review the literature on cognitive function in idiopathic and DYT1 dystonia. In idiopathic or DYT1 dystonia, cognition is largely intact with only isolated executive dysfunction. Dystonia patients also have increased temporal and spatial discrimination thresholds, considered endophenotypes of the disorder because deficits are also shown by unaffected relatives and nonmanifesting carriers of the DYT1 mutation. Anticholinergic medication in high doses can be associated with memory impairment in dystonia...
June 19, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28626003/transcriptional-complexity-and-distinct-expression-patterns-of-auts2-paralogs-in-danio-rerio
#15
Igor Kondrychyn, Lena Robra, Vatsala Thirumalai
Several genes that have been implicated in autism spectrum disorders are large and have multiple transcripts. Neurons are especially enriched with longer transcripts compared to non-neural cell types. The human autism susceptibility candidate 2 (AUTS2) gene is ~1.2 Mb long and is implicated in a number of neurological disorders including autism, intellectual disability, addiction and developmental delay. Recent studies show AUTS2 to be important for activation of transcription of neural specific genes, neuronal migration and neurite outgrowth...
June 16, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28623390/disturbed-cervical-proprioception-affects-perception-of-spatial-orientation-while-in-motion
#16
Eva-Maj Malmström, Per-Anders Fransson, Terese Jaxmar Bruinen, Semir Facic, Fredrik Tjernström
The proprioceptive, visual and vestibular sensory systems interact to maintain dynamic stability during movement. The relative importance and interplay between these sensory systems is still not fully understood. Increased knowledge about spatial perception and postural orientation would provide better understanding of balance disorders, and their rehabilitation. Displacement of the body in space was recorded in 16 healthy subjects performing a sequence of stepping-in-place tests without any visual or auditory cues...
June 17, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28622552/fornix-microalterations-associated-with-early-trauma-in-panic-disorder
#17
Seung-Taek Yu, Kang-Soo Lee, Sang-Hyuk Lee
BACKGROUND: It is well accepted that panic disorder (PD) is associated with early trauma, and that the limbic systems are one of the main structures involved in PD pathophysiology. However, previous studies have not addressed the relationship between early trauma and major limbic white-matter (WM) structures in PD. METHODS: Participants enrolled in the study consisted of 53 right-handed patients with PD and 21 healthy controls (HC). The Early Trauma Inventory Self Report-Short Form (ETISR-SF), Anxiety Sensitivity Inventory-Revised (ASI-R), and the Albany Panic and Phobia Questionnaire (APPQ) were applied in the study...
May 30, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28620049/the-x-linked-deubiquitinase-usp9x-is-an-integral-component-of-centrosome
#18
Qian Wang, Yiman Tang, Yue Xu, Shilei Xu, Yong Jiang, Qiuping Dong, Yongsheng Zhou, Wenshu Ge
The X-linked deubiquitinase USP9X has been implicated in multiple pathological disorders including malignancies and X-linked intellectual disability. However, its biological function and substrate repertoire remain to be investigated. In this study, we utilized the TMT (tandem mass tags) labeling assay to identify USP9X regulated proteins, and revealed that the expression of multiple genes is altered in USP9X deficient cells. Interestingly, we showed that USP9X promotes stabilization of centrosome protein PCM1 and CEP55 through its catalytic activity...
June 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28619276/arginine-vasopressin-relates-with-spatial-learning-and-memory-in-a-mouse-model-of-spinocerebellar-ataxia-type-3
#19
Hong-Bo Jiang, Ai-Lin Du, Hai-Yang Luo, Jun Yang, Xiao-Qiu Luo, Rui-Qing Ma, Chang-He Shi, Yu-Ming Xu
Spinocerebellar ataxia is an inherited neurodegenerative disorder that the most prevalent type is type 3 (SCA3). Arginine vasopressin (AVP) is released within the lateral septum for controlling the learning and memory. This communication studied the effect of AVP on the spatial learning and memory of SCA3 mice. The spatial learning and memory were analyzed by Morris water maze test (MWM), and AVP concentration was measured by radioimmunoassay. The results showed that (Alves et al., 2010) the swimming velocity, distance traveled and latency to the platform of MWM in SCA3 mice were reduced slower than those in WT mice over 4 training days (p<0...
June 6, 2017: Neuropeptides
https://www.readbyqxmd.com/read/28618531/noise-focusing-in-neuronal-tissues-symmetry-breaking-and-localization-in-excitable-networks-with-quenched-disorder
#20
Javier G Orlandi, Jaume Casademunt
We introduce a coarse-grained stochastic model for the spontaneous activity of neuronal cultures to explain the phenomenon of noise focusing, which entails localization of the noise activity in excitable networks with metric correlations. The system is modeled as a continuum excitable medium with a state-dependent spatial coupling that accounts for the dynamics of synaptic connections. The most salient feature is the emergence at the mesoscale of a vector field V(r), which acts as an advective carrier of the noise...
May 2017: Physical Review. E
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