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https://www.readbyqxmd.com/read/28421097/development-of-incompletely-fused-carpels-in-maize-ovary-revealed-by-mirna-target-gene-and-phytohormone-analysis
#1
Hongping Li, Ting Peng, Qun Wang, Yufeng Wu, Jianfeng Chang, Moubiao Zhang, Guiliang Tang, Chaohai Li
Although the molecular basis of carpel fusion in maize ovary development remains largely unknown, increasing evidence suggests a critical role of microRNAs (miRNAs). In this study, a combination of miRNA sequencing, degradome and physiological analyses was used to characterize carpel fusion development in maize ovaries showing incompletely (IFC) and completely fused carpels (CFC). A total of 162 known miRNAs distributed across 33 families were identified, of which 20 were differentially expressed. In addition, 53 miRNA candidates were identified, of which 10 were differentially expressed in the IFC and CFC ovaries...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28392491/intrinsic-functional-connectivity-of-the-central-nucleus-of-the-amygdala-and-bed-nucleus-of-the-stria-terminalis
#2
Adam X Gorka, Salvatore Torrisi, Alexander J Shackman, Christian Grillon, Monique Ernst
The central nucleus of the amygdala (CeA) and bed nucleus of the stria terminalis (BNST), two nuclei within the central extended amygdala, function as critical relays within the distributed neural networks that coordinate sensory, emotional, and cognitive responses to threat. These structures have overlapping anatomical projections to downstream targets that initiate defensive responses. Despite these commonalities, researchers have also proposed a functional dissociation between the CeA and BNST, with the CeA promoting responses to discrete stimuli and the BNST promoting responses to diffuse threat...
April 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28355697/-study-on-apoptosis-mechanism-of-h9c2-cardiomyocytes-induced-by-n-n-dimethylformamide
#3
Q X Rong, Y J Yang, W W Zhang, J Wang, X L Ma, M Xiang, L L Wang, W J Sun
Objective: To observe the change levels of nuclear factor-kappa B (NF-κB) p65 protein in cytoplasm and nuclear, phosphorylation of inhibitor of kappa B (p-IκB) protein and cytochrome C (Cyt-c) , cleaved cysteinyl aspartate specific proteinase-3 (Cleaved caspase-3) , B-cell lymphoma/leukemia-2 (Bcl-2) in cytoplasm in the process of N, N-dimethylformamide (DMF) -induced apoptosis in H9c2 cardiomyocytes, and explore the tentative mechanism of apoptosis. Methods: H9c2 cardiomyocytes were exposed to 200 mmol/L DMF...
February 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28340447/fronto-limbic-disconnection-in-depressed-patients-with-suicidal-ideation-a-resting-state-functional-connectivity-study
#4
Lian Du, Jinkun Zeng, Huan Liu, Dejian Tang, Huaqing Meng, Yongmei Li, Yixiao Fu
BACKGROUND: Suicidal ideation (SI) is highly prevalent and a known symptom of Major Depressive Disorder (MDD), but its underlying biological mechanisms are relatively unknown. Several studies linked suicidal ideation to dysfunctional brain circuits, specifically fronto-limbic connections. The purpose of this work was to investigate fronto-limbic disconnection in MDD patients with or without SI. METHODS: MDD patients with SI (SI, n=28) or without SI (NSI, n=20), identified by the Scale for Suicide Ideation and healthy controls (HCs, n=30) underwent resting-state functional MRI scanning...
February 21, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28334143/boosting-and-decreasing-action-prediction-abilities-through-excitatory-and-inhibitory-tdcs-of-inferior-frontal-cortex
#5
Alessio Avenanti, Riccardo Paracampo, Laura Annella, Emmanuele Tidoni, Salvatore Maria Aglioti
Influential theories suggest that humans predict others' upcoming actions by using their own motor system as an internal forward model. However, evidence that the motor system is causally essential for predicting others' actions is meager. Using transcranial direct current stimulation (tDCS), we tested the role of the inferior frontal cortex (IFC), in action prediction (AP). We devised a novel AP task where participants observed the initial phases of right-hand reaching-to-grasp actions and had to predict their outcome (i...
March 14, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28316567/distinct-functional-connectivities-predict-clinical-response-with-emotion-regulation-therapy
#6
REVIEW
David M Fresco, Amy K Roy, Samantha Adelsberg, Saren Seeley, Emmanuel García-Lesy, Conor Liston, Douglas S Mennin
Despite the success of available medical and psychosocial treatments, a sizable subgroup of individuals with commonly co-occurring disorders, generalized anxiety disorder (GAD) and major depressive disorder (MDD), fail to make sufficient treatment gains thereby prolonging their deficits in life functioning and satisfaction. Clinically, these patients often display temperamental features reflecting heightened sensitivity to underlying motivational systems related to threat/safety and reward/loss (e.g., somatic anxiety) as well as inordinate negative self-referential processing (e...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28273763/the-influence-of-posterior-visual-pathway-damage-on-visual-information-processing-speed-in-multiple-sclerosis
#7
Iñigo Gabilondo, Oiane Rilo, Natalia Ojeda, Javier Pena, Ainara Gómez-Gastiasoro, Mar Mendibe Bilbao, Alfredo Rodríguez-Antigüedad, Alberto Cabrera, Ibai Diez, Naroa Ibarretxe-Bilbao
BACKGROUND: The injury of visual pathway and abnormalities of visual processing speed (VPS) are frequent in MS, but their association remains unexplored. OBJECTIVE: To evaluate the impact of posterior visual pathway structural and functional integrity on VPS of MS patients. METHODS: Cross-sectional study of 30 MS patients and 28 controls, evaluating the association of a VPS tests composite (Salthouse Perceptual Comparison test, Trail Making Test A and Symbol Digit Modalities Test) with 3T MRI visual cortex thickness, optic radiations (OR) diffusion tensor imaging indexes, and medial visual component (MVC) functional connectivity (FC) (MVC-MVC FC (iFC) and MVC-brain FC (eFC)) by linear regression, removing the effect of premorbid IQ, fatigue, and depression...
November 1, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28250914/the-application-of-imaging-flow-cytometry-to-high-throughput-biodosimetry
#8
REVIEW
Ruth C Wilkins, Matthew A Rodrigues, Lindsay A Beaton-Green
Biodosimetry methods, including the dicentric chromosome assay, the cytokinesis-block micronucleus assay and the γH2AX marker of DNA damage are used to determine the dose of ionizing radiation. These techniques are particularly useful when physical dosimetry is absent or questioned. While these assays can be very sensitive and specific, the standard methods need to be adapted to increase sample throughput in the case of a large-scale radiological/nuclear event. Recent modifications to the microscope-based assays have resulted in some increased throughput, and a number of biodosimetry networks have been, and continue to be, established and strengthened...
2017: Genome Integrity
https://www.readbyqxmd.com/read/28248454/combination-of-imaging-flow-cytometry-and-time-lapse-microscopy-for-the-study-of-label-free-morphology-dynamics-of-hematopoietic-cells
#9
Jérémie Cosette, Alice Moussy, Andras Paldi, Daniel Stockholm
Cell differentiation is a longitudinal and dynamic process. Studying and quantifying such a process require tools combining precise time resolution and statistical power. Imaging flow cytometry (IFC) provides statistically significant number of microscopy images of individual cells in a sample at a given time point. Time-lapse microscopy (TLM) is the method of choice for studying the dynamics of cell processes at a high temporal, but low statistical resolution. In this work, we show that the dynamic changes of cord-blood derived CD34+ cells in response to cytokine stimulation can be successfully studied, in a label-free way, by the combination of the IFCs statistical power and the TLM's high time resolution...
March 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28243196/abnormal-spontaneous-brain-activity-in-women-with-premenstrual-syndrome-revealed-by-regional-homogeneity
#10
Hai Liao, Yong Pang, Peng Liu, Huimei Liu, Gaoxiong Duan, Yanfei Liu, Lijun Tang, Jien Tao, Danhong Wen, Shasha Li, Lingyan Liang, Demao Deng
Background: Previous studies have revealed that the etiologies of premenstrual syndrome (PMS) refer to menstrual cycle related brain changes. However, its intrinsic neural mechanism is still unclear. The aim of the present study was to assess abnormal spontaneous brain activity and to explicate the intricate neural mechanism of PMS using resting state functional magnetic resonance imaging (RS-fMRI). Materials and Methods: The data of 20 PMS patients (PMS group) and 21 healthy controls (HC group) were analyzed by regional homogeneity (ReHo) method during the late luteal phase of menstrual cycle...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28238064/hepatic-inflammation-fibrosis-cancer-axis-in-the-rat-hepatocellular-carcinoma-induced-by-diethylnitrosamine
#11
Yong-Fang Ding, Zhen-Hui Wu, Ying-Jie Wei, Luan Shu, Yun-Ru Peng
PURPOSE: Hepatocellular carcinoma (HCC) cases are closely associated with chronic inflammation and fibrosis which is known as hepatic inflammation-fibrosis-cancer (IFC) axis. The aim of this study is to elucidate the development characteristics of the rat HCC model based on IFC axis. METHODS: The diethylnitrosamine (DEN)-induced rat HCC, which presents a stepwise histopathological progression that is similar to human HCC, was used to analyze the features of the different stages (inflammation, fibrosis, cancer)...
May 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28209723/functional-metabolic-and-dynamic-mitochondrial-changes-in-the-rat-cirrhosis-hepatocellular-carcinoma-model-and-the-protective-effect-of-ifc-305
#12
Enrique Chávez, María Guadalupe Lozano-Rosas, Mariana Domínguez-López, Gabriela Velasco-Loyden, Jesús Rafael Rodríguez-Aguilera, Concepción José-Nuñez, Marietta Tuena de Gómez-Puyou, Victoria Chagoya de Sánchez
Background: Mitochondrion is an important metabolic and energetic organelle that regulates several cellular processes. Mitochondrial dysfunction has been related to liver diseases including hepatocellular carcinoma. As a result, the energetic demand is not properly supplied and mitochondrial morphologic changes have been observed, resulting in an altered metabolism. We previously demonstrated the chemopreventive effect of the hepatoprotector IFC-305. Aim: In this work we aimed to evaluate the functional, metabolic, and dynamic mitochondrial alterations in the sequential model of cirrhosis-hepatocellular carcinoma induced by diethylnitrosamine in rats and the possible beneficial effect of IFC-305...
May 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28195438/from-rest-to-language-task-task-activation-selects-and-prunes-from-broader-resting-state-network
#13
Gaelle E Doucet, Xiaosong He, Michael R Sperling, Ashwini Sharan, Joseph I Tracy
Resting-state networks (RSNs) show spatial patterns generally consistent with networks revealed during cognitive tasks. However, the exact degree of overlap between these networks has not been clearly quantified. Such an investigation shows promise for decoding altered functional connectivity (FC) related to abnormal language functioning in clinical populations such as temporal lobe epilepsy (TLE). In this context, we investigated the network configurations during a language task and during resting state using FC...
February 14, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28169142/the-american-college-of-radiology-incidental-findings-committee-recommendations-for-management-of-incidental-lymph-nodes-a-single-center-evaluation
#14
Paul Smereka, Ankur M Doshi, Justin M Ream, Andrew B Rosenkrantz
RATIONALE AND OBJECTIVES: To assess the American College of Radiology Incidental Findings Committee's (ACR-IFC) recommendations for defining and following up abnormal incidental abdominopelvic lymph nodes. MATERIALS AND METHODS: A total of 59 lymph nodes satisfying ACR-IFC criteria as incidental (no malignancy or lymphoproliferative disorder) and with sufficient follow-up to classify as benign (biopsy, decreased size, ≥12-month stability) or malignant (biopsy, detection of primary malignancy combined with either fluorodeoxyglucose hyperactivity or increase in size of the node) were included...
February 3, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28167957/histological-and-immunohistochemical-evaluation-of-the-efficacy-of-a-new-cosmetic-formulation-in-the-treatment-of-skin-photoaging
#15
M T Truchuelo, N Jiménez, L Miguel-Gomez, A Hermosa, N Sánchez-Neila, J Cuevas
Objective. Mechanism of action of cosmetic products is not often studied. The aim of this study is to determine the histological, immunohistochemical, and clinical changes of a new cosmetic formulation. Methods. Prospective, single-blind, patient-controlled, randomized study in 10 volunteers with mild to moderate skin photoaging on the back of their hands. The product was applied on one hand and a standard cream on the other hand, twice a day for three months. Standardized photographs were taken on basal (T0) and final visit (T1) and skin biopsies were performed...
2017: Dermatology Research and Practice
https://www.readbyqxmd.com/read/28160085/transcutaneous-electrical-nerve-stimulation-reduces-exercise-induced-perceived-pain-and-improves-endurance-exercise-performance
#16
RANDOMIZED CONTROLLED TRIAL
Ali H Y Astokorki, Alexis R Mauger
PURPOSE: Muscle pain is a natural consequence of intense and prolonged exercise and has been suggested to be a limiter of performance. Transcutaneous electrical nerve stimulation (TENS) and interferential current (IFC) have been shown to reduce both chronic and acute pain in a variety of conditions. This study sought to ascertain whether TENS and IFC could reduce exercise-induced pain (EIP) and whether this would affect exercise performance. It was hypothesised that TENS and IFC would reduce EIP and result in an improved exercise performance...
March 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28135347/comparing-sensitivity-estimates-from-mlds-and-forced-choice-methods-in-a-slant-from-texture-experiment
#17
Guillermo Aguilar, Felix A Wichmann, Marianne Maertens
Maximum likelihood difference scaling (MLDS) is a method for the estimation of perceptual scales based on the judgment of differences in stimulus appearance (Maloney & Yang, 2003). MLDS has recently also been used to estimate near-threshold discrimination performance (Devinck & Knoblauch, 2012). Using MLDS as a psychophysical method for sensitivity estimation is potentially appealing, because MLDS has been reported to need less data than forced-choice procedures, and particularly naive observers report to prefer suprathreshold comparisons to JND-style threshold tasks...
January 1, 2017: Journal of Vision
https://www.readbyqxmd.com/read/28128700/biomechanical-evaluation-of-an-integrated-fixation-cage-during-fatigue-loading-a-human-cadaver-study
#18
Vivek Palepu, Jonathan H Peck, David D Simon, Melvin D Helgeson, Srinidhi Nagaraja
OBJECTIVE Lumbar cages with integrated fixation screws offer a low-profile alternative to a standard cage with anterior supplemental fixation. However, the mechanical stability of integrated fixation cages (IFCs) compared with a cage with anterior plate fixation under fatigue loading has not been investigated. The purpose of this study was to compare the biomechanical stability of a screw-based IFC with a standard cage coupled with that of an anterior plate under fatigue loading. METHODS Eighteen functional spinal units were implanted with either a 4-screw IFC or an anterior plate and cage (AP+C) without integrated fixation...
April 2017: Journal of Neurosurgery. Spine
https://www.readbyqxmd.com/read/28122025/intrinsic-functional-connectivity-alterations-of-the-primary-visual-cortex-in-primary-angle-closure-glaucoma-patients-before-and-after-surgery-a-resting-state-fmri-study
#19
Shenghong Li, Ping Li, Honghan Gong, Fei Jiang, Dan Liu, Fengqin Cai, Chonggang Pei, Fuqing Zhou, Xianjun Zeng
PURPOSE: To investigate the altered intrinsic functional connectivity (iFC) of the primary visual cortex (V1) in primary angle-closure glaucoma (PACG) patients before and after surgery using resting-state functional MRI. MATERIALS AND METHODS: Twenty-five preoperative PACG (pre-PACG) patients and 25 well-matched healthy controls (HCs) were included in this study, and 9 PACG patients were assessed again at least 3 months after treatment (post-PACG). We generated the iFC maps of the seed regions in the centers of the left and right V1 and conducted group comparisons...
2017: PloS One
https://www.readbyqxmd.com/read/28113105/reorganization-of-brain-function-after-a-short-term-behavioral-intervention-for-stuttering
#20
Chunming Lu, Lifen Zheng, Yuhang Long, Qian Yan, Guosheng Ding, Li Liu, Danling Peng, Peter Howell
This study investigated changes in brain function that occurred over a 7-day behavioral intervention for adults who stutter (AWS). Thirteen AWS received the intervention (AWS+), and 13 AWS did not receive the intervention (AWS-). There were 13 fluent controls (FC-). All participants were scanned before and after the intervention. Whole-brain analysis pre-intervention showed significant differences in task-related brain activation between AWS and FC- in the right inferior frontal cortex (IFC) and left middle temporal cortex, but there were no differences between the two AWS groups...
May 2017: Brain and Language
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