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https://www.readbyqxmd.com/read/28431434/bright-light-suppresses-form-deprivation-myopia-development-with-activation-of-dopamine-d1-receptor-signaling-in-the-on-pathway-in-retina
#1
Si Chen, Zhina Zhi, Qingqing Ruan, Qingxia Liu, Fen Li, Fen Wan, Peter S Reinach, Jiangfan Chen, Jia Qu, Xiangtian Zhou
Purpose: To determine whether dopamine receptor D1 (D1R) signaling pathway activation by bright light (BL) in specific retinal neuronal cell types contributes to inhibiting form-deprivation myopia (FDM) in mice. Methods: Mice (3-weeks old) were raised under either normal light (NL: 100-200 lux) or BL (2500-5000 lux) conditions with or without form deprivation. Refraction changes were evaluated with an eccentric infrared photorefractor, and ocular axial components with optical coherence tomography...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28429352/difference-in-resting-state-fractional-amplitude-of-low-frequency-fluctuation-between-bipolar-depression-and-unipolar-depression-patients
#2
H-L Yu, W-B Liu, T Wang, P-Y Huang, L-Y Jie, J-Z Sun, C Wang, W Qian, M Xuan, Q-Q Gu, H Liu, F-L Zhang, M-M Zhang
OBJECTIVE: To investigate the difference in fractional amplitude of low-frequency fluctuation (fALFF) of localized brain activities in the resting-state between bipolar depression and unipolar depression patients and to find biological markers that differentiate the two groups of patients. PATIENTS AND METHODS: Thirteen patients with bipolar depression, 15 patients with unipolar depression, and 16 healthy control subjects that were matched in age and years of education were subjected to 3...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28417647/mixed-states-in-bipolar-disorder-changes-in-dsm-5-and-current-treatment-recommendations
#3
Felix Betzler, Laura Apollonia Stöver, Philipp Sterzer, Stephan Köhler
OBJECTIVE: Mixed states in affective disorders represent a particular challenge in clinical routine, characterized by a complicated course of treatment and a worse treatment response. METHODS: Clinical features of mixed states and the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) criteria are presented and critical discussed. We then performed a systematic review using the terms 'bipolar', 'mixed' and 'randomized' to evaluate current treatment options...
April 18, 2017: International Journal of Psychiatry in Clinical Practice
https://www.readbyqxmd.com/read/28415701/wogonin-induces-retinal-neuron-like-differentiation-of-bone-marrow-stem-cells-by-inhibiting-notch-1-signaling
#4
Qinmeng Shu, Hong Zhuang, Jiawen Fan, Xin Wang, Gezhi Xu
Age-related macular degeneration and retinitis pigmentosa are major causes of irreversible vision loss in the elderly and, despite sustained efforts, current treatments are largely ineffective. Wogonin is a bioactive plant flavonoid possessing a range of beneficial properties, including neuroprotective effects. We investigated the ability of wogonin to promote retinal neuron-like differentiation of bone marrow stem cells (BMSCs) and assessed the involvement of Notch-1 signaling in this process. Cultured mouse BMSCs were left untreated or exposed to neurotrophic factors in the presence or absence of wogonin, and western blotting, RT-PCR and immunofluorescence were used to identify changes in molecular markers of stemness and neuroretinal differentiation...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415008/bipolar-mood-state-reflected-in-cortico-amygdala-resting-state-connectivity-a-cohort-and-longitudinal-study
#5
Roscoe O Brady, Allison Margolis, Grace A Masters, Matcheri Keshavan, Dost Öngür
BACKGROUND: Using resting-state functional magnetic resonance imaging (rsfMRI), we previously compared cohorts of bipolar I subjects in a manic state to those in a euthymic state to identify mood state-specific patterns of cortico-amygdala connectivity. Our results suggested that mania is reflected in the disruption of emotion regulation circuits. We sought to replicate this finding in a group of subjects with bipolar disorder imaged longitudinally across states of mania and euthymia METHODS: We divided our subjects into three groups: 26 subjects imaged in a manic state, 21 subjects imaged in a euthymic state, and 10 subjects imaged longitudinally across both mood states...
March 28, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28411477/comparative-surface-energetic-study-of-matrigel-%C3%A2-and-collagen-i-interactions-with-endothelial-cells
#6
Michael J Hill, Debanjan Sarkar
Understanding of the surface energetic aspects of the spontaneously deposited proteins on biomaterial surfaces and how this influences cell adhesion and differentiation is an area of regenerative medicine that has not received adequate attention. Current controversies surround the role of the biomaterial substratum surface chemistry, the range of influence of said substratum, and the effects of different surface energy components of the protein interface. Endothelial cells (ECs) are a highly important cell type for regenerative medicine applications, such as tissue engineering, and In-vivo they interact with collagen I based stromal tissue and basement membranes producing different behavioral outcomes...
April 4, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28400500/differential-hemodynamic-and-respiratory-responses-to-right-and-left-cervical-vagal-nerve-stimulation-in-rats
#7
Harald M Stauss
Neuromodulation through vagal nerve stimulation (VNS) is currently explored for a variety of clinical conditions. However, there are no established VNS parameters for animal models of human diseases, such as hypertension. Therefore, the aim of this study was to assess hemodynamic and respiratory responses to right- or left-sided cervical VNS in a hypertensive rat model. Anesthetized stroke-prone spontaneously hypertensive rats were instrumented for arterial blood pressure and heart rate monitoring and left- or right-sided VNS Cervical VNS was applied through bipolar coil electrodes...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28400391/mood-zoom-could-be-a-promising-tool-for-daily-mood-variability-monitoring-potentially-differentiating-bipolar-from-borderline-patients
#8
Erkki Isometsä
No abstract text is available yet for this article.
April 11, 2017: Evidence-based Mental Health
https://www.readbyqxmd.com/read/28398819/distinguishing-bipolar-depression-from-unipolar-depression-in-youth-preliminary-findings
#9
Rasim Somer Diler, Tina R Goldstein, Danella Hafeman, John Merranko, Fangzi Liao, Benjamin I Goldstein, Heather Hower, Mary Kay Gill, Jeffrey Hunt, Shirley Yen, Martin B Keller, David Axelson, Michael Strober, Satish Iyengar, Neal D Ryan, Boris Birmaher
OBJECTIVES: To identify mood symptoms that distinguishes bipolar disorder (BP) depression versus unipolar depression in youth during an acute depressive episode. METHODS: Youth with BP (N = 30) were compared with youth with unipolar depression (N = 59) during an acute depressive episode using the depression and mania items derived from the Schedule for Affective Disorders and Schizophrenia for Children (K-SADS)-Present Version. The results were adjusted for multiple comparisons, and any significant between-group differences in demographic, nonmood comorbid disorders, and psychiatric family history...
February 28, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28393474/application-of-ipscs-to-understand-neurobiological-basis-of-bipolar-disorder-and-schizophrenia
#10
Yao-Nan Liu, Si-Yao Lu, Jun Yao
The etiology of neuropsychiatric disorders such as schizophrenia and bipolar disorder usually involves complex combinations of genetic defects/variations and environmental impacts, which hindered, for a long time, research efforts based on animal models and patients' non-neuronal cells or postmortem tissues. However, the development of human induced pluripotent stem cell technology by the Yamanaka group was immediately applied to establish cell research models for neuronal disorders. Since then, techniques to achieve highly efficient differentiation of different types of neural cells following iPSC modeling have made much progress...
April 10, 2017: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28386668/a-mathematical-framework-for-kinetochore-driven-activation-feedback-in-the-mitotic-checkpoint
#11
Bashar Ibrahim
Proliferating cells properly divide into their daughter cells through a process that is mediated by kinetochores, protein-complexes that assemble at the centromere of each sister chromatid. Each kinetochore has to establish a tight bipolar attachment to the spindle apparatus before sister chromatid separation is initiated. The spindle assembly checkpoint (SAC) links the biophysical attachment status of the kinetochores to mitotic progression and ensures that even a single misaligned kinetochore keeps the checkpoint active...
April 6, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28385173/novel-augmentation-strategies-in-major-depression
#12
Klaus Martiny
Hypothesis The hypotheses of all the four included studies share the common idea that it is possible to augment the effect of antidepressant drug treatment by applying different interventions and with each intervention attain a clinically meaningful better effect compared to a control condition, and with minor side effects, thus improving the short- and medium-term outcome in major depression. Procedures Study design The basic study design has been the double blind randomised controlled trial (RCT). In the light therapy study, all patients were treated with sertraline for the whole of the study duration...
April 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28384714/organotypic-cultures-of-adult-mouse-retina-morphologic-changes-and-gene-expression
#13
Brigitte Müller, Franziska Wagner, Birgit Lorenz, Knut Stieger
Purpose: The purpose of this study was characterization of adult murine neuroretina in organ culture to investigate its suitability for use in preclinical therapeutic applications. In retinal disorders, neurodegeneration of mature retinal cells takes place. Therefore, neonatal retina cultures are not adequate for therapeutic applications, such as genome editing, as the retina is still developing with cells dividing and differentiating into highly specialized cell types such as photoreceptors...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28369737/insula-and-amygdala-resting-state-functional-connectivity-differentiate-bipolar-from-unipolar-depression
#14
E Ambrosi, D B Arciniegas, A Madan, K N Curtis, M A Patriquin, R E Jorge, G Spalletta, J C Fowler, B C Frueh, R Salas
OBJECTIVE: Distinguishing depressive episodes due to bipolar disorder (BD) or major depressive disorder (MDD) solely on clinical grounds is challenging. We aimed at comparing resting-state functional connectivity (rsFC) of regions subserving emotional regulation in similarly depressed BD and MDD. METHOD: We enrolled 76 in-patients (BD, n = 36; MDD, n = 40) and 40 healthy controls (HC). A seed-based approach was used to identify regions showing different rsFC with the insula and the amygdala...
March 28, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28359201/a-5-year-observational-study-of-patients-with-treatment-resistant-depression-treated-with-vagus-nerve-stimulation-or-treatment-as-usual-comparison-of-response-remission-and-suicidality
#15
Scott T Aaronson, Peter Sears, Francis Ruvuna, Mark Bunker, Charles R Conway, Darin D Dougherty, Frederick W Reimherr, Thomas L Schwartz, John M Zajecka
OBJECTIVE: The Treatment-Resistant Depression Registry investigated whether adjunctive vagus nerve stimulation (VNS) with treatment as usual in depression has superior long-term outcomes compared with treatment as usual only. METHOD: This 5-year, prospective, open-label, nonrandomized, observational registry study was conducted at 61 U.S. sites and included 795 patients who were experiencing a major depressive episode (unipolar or bipolar depression) of at least 2 years' duration or had three or more depressive episodes (including the current episode), and who had failed four or more depression treatments (including ECT)...
March 31, 2017: American Journal of Psychiatry
https://www.readbyqxmd.com/read/28357133/the-association-between-self-reported-and-clinically-determined-hypomanic-symptoms-and-the-onset-of-major-mood-disorders
#16
Sarah Margaret Goodday, Martin Preisig, Mehdi Gholamrezaee, Paul Grof, Jules Angst, Anne Duffy
BACKGROUND: Hypomanic symptoms may be a useful predictor of mood disorder among young people at high risk for bipolar disorder. AIMS: To determine whether hypomanic symptoms differentiate offspring of parents with bipolar disorder (high risk) and offspring of well parents (control) and predict the development of mood episodes. METHOD: High-risk and control offspring were prospectively assessed using semi-structured clinical interviews annually and completed the Hypomania Checklist-32 Revised (HCL-32)...
March 2017: BJPsych Open
https://www.readbyqxmd.com/read/28342644/steeper-slope-of-age-related-changes-in-white-matter-microstructure-and-processing-speed-in-bipolar-disorder
#17
Sheena I Dev, Tanya T Nguyen, Benjamin S McKenna, Ashley N Sutherland, Hauke Bartsch, Rebecca J Theilmann, Lisa T Eyler
OBJECTIVES: Bipolar disorder (BD) is associated with compromised white matter (WM) integrity and deficits in processing speed (PS). Few studies, however, have investigated age relationships with WM structure and cognition to understand possible changes in brain health over the lifespan. This investigation explored whether BD and healthy counterpart (HC) participants exhibited differential age-related associations with WM and cognition, which may be suggestive of accelerated brain and cognitive aging...
February 16, 2017: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28340442/neurocognitive-performance-as-an-endophenotype-for-mood-disorder-subgroups
#18
Alison K Merikangas, Lihong Cui, Monica E Calkins, Tyler M Moore, Ruben C Gur, Raquel E Gur, Kathleen R Merikangas
BACKGROUND: There is growing evidence that neurocognitive function may be an endophenotype for mood disorders. The goal of this study is to examine the specificity and familiality of neurocognitive functioning across the full range of mood disorder subgroups, including Bipolar I (BP-I), Bipolar II (BP-II), Major Depressive Disorders (MDD), and controls in a community-based family study. METHODS: A total of 310 participants from 137 families with mood spectrum disorders (n=151) and controls (n=159) completed the University of Pennsylvania's Computerized Neurocognitive Battery (CNB) that assessed the accuracy and speed of task performance across five domains...
March 10, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28334377/lrit3-differentially-affects-connectivity-and-synaptic-transmission-of-cones-to-on-and-off-bipolar-cells
#19
Marion Neuillé, Yan Cao, Romain Caplette, Debbie Guerrero-Given, Connon Thomas, Naomi Kamasawa, José-Alain Sahel, Christian P Hamel, Isabelle Audo, Serge Picaud, Kirill A Martemyanov, Christina Zeitz
Purpose: Mutations in LRIT3 lead to complete congenital stationary night blindness (cCSNB). Using a cCSNB mouse model lacking Lrit3 (nob6), we recently have shown that LRIT3 has a role in the correct localization of TRPM1 (transient receptor potential melastatin 1) to the dendritic tips of ON-bipolar cells (BCs), contacting both rod and cone photoreceptors. Furthermore, postsynaptic clustering of other mGluR6 cascade components is selectively eliminated at the dendritic tips of cone ON-BCs...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28334111/g%C3%AE-2-regulates-the-multipolar-bipolar-transition-of-newborn-neurons-in-the-developing-neocortex
#20
Ye Guo, Xiaoxiao He, Lu Zhao, Lin Liu, Huifang Song, Xudong Wang, Jiahui Xu, Xingda Ju, Weixiang Guo, Xiaojuan Zhu
Proper neuronal migration is critical for the formation of the six-layered neocortex in the mammalian brain. However, the precise control of neuronal migration is not well understood. Heterotrimeric guanine nucleotide binding proteins (G proteins), composed of Gα and Gβγ, transduce signals from G protein-coupled receptors to downstream effectors and play crucial roles in brain development. However, the functions of individual subunits of G proteins in prenatal brain development remain unclear. Here, we report that Gβ2 is expressed in the embryonic neocortex, with abundant expression in the intermediate zone, and is significantly upregulated in differentiated neurons...
February 23, 2017: Cerebral Cortex
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