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https://www.readbyqxmd.com/read/29677038/postoperative-b-type-natriuretic-peptide-as-predictor-for-postoperative-outcomes-in-patients-implanted-with-left-ventricular-assist-devices
#1
Gardner Yost, Geetha Bhat, Patroklos Pappas, Antone Tatooles
Brain natriuretic peptide (BNP) is a cardiac neurohormone known to correlate with left ventricular (LV) dilation, decreased contractility, and increased stiffness. Consequently, BNP has been used as a prognostic tool to assess the degree of LV unloading for patients supported by continuous-flow LV assist devices (LVADs). We assessed the prognostic value of changes in BNP in the 2 weeks after LVAD implantation. This retrospective study analyzed laboratory findings and outcomes of 189 LVAD patients. Patients were separated into two groups based on whether serum BNP levels had improved from preoperative levels by postoperative day 14...
April 18, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29673824/pre-and-postoperative-headache-in-patients-with-intracranial-tumors
#2
Bodil Karoline Ravn Munkvold, Lisa Millgård Sagberg, Asgeir Store Jakola, Ole Solheim
OBJECTIVE: We sought to examine prevalence of headache in patients with histopathologically verified intracranial tumors scheduled for surgery, and assess change in headache 1 and 6 months after surgical resection. Possible tumor and patient related predictors for preoperative headache and early postoperative symptom relief were also explored. METHODS: The European Organization for Research and Treatment of Cancer (EORTC) has developed a quality of life questionnaire (EORTC QLQ-C30) with a brain cancer specific module, QLQ-BN20, containing 20 questions rating symptoms the past week on an ordinal scale ranging from 1-4...
April 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29673800/blindness-after-facial-trauma-epidemiology-incidence-and-risk-factors-a-27-year-cohort-study-of-5708-patients
#3
Panagiotis Stathopoulos, Dimosthenis Igoumenakis, Michalis Mezitis, George Rallis
OBJECTIVES: This was a 27-year study of a cohort of 5708 patients who had sustained maxillofacial fractures. Our purpose was to present the etiology, mechanism of trauma, site, and concomitant injuries that led to visual loss. We hypothesize that fractures caused by high-energy impact of the midface may be associated with blindness. A discussion of the treatment approaches is also included. STUDY DESIGN: The study included 5708 patients who had sustained a maxillofacial fracture during the years 1985-2012...
March 23, 2018: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29662942/measuring-and-validating-the-levels-of-brain-derived-neurotrophic-factor-in-human-serum
#4
Yvonne Naegelin, Hayley Dingsdale, Katharina Säuberli, Sabine Schädelin, Ludwig Kappos, Yves-Alain Barde
Brain-derived neurotrophic factor (BDNF) secreted by neurons is a significant component of synaptic plasticity. In humans, it is also present in blood platelets where it accumulates following its biosynthesis in megakaryocytes. BDNF levels are thus readily detectable in human serum and it has been abundantly speculated that they may somehow serve as an indicator of brain function. However, there is a great deal of uncertainty with regard to the range of BDNF levels that can be considered normal, how stable these values are over time and even whether BDNF levels can be reliably measured in serum...
March 2018: ENeuro
https://www.readbyqxmd.com/read/29662088/tracing-of-the-fecal-microbiota-of-commercial-pigs-at-five-growth-stages-from-birth-to-shipment
#5
Geon Goo Han, Jun-Yeong Lee, Gwi-Deuk Jin, Jongbin Park, Yo Han Choi, Sang-Kee Kang, Byung Jo Chae, Eun Bae Kim, Yun-Jaie Choi
The intestinal microbiota affect various physiological traits of host animals such as brain development, obesity, age, and the immune system. In the swine industry, understanding the relationship between intestinal microbiota and growth stage is essential because growth stage is directly related to the feeding system of pigs, thus we studied the intestinal microbiota of 32 healthy pigs across five sows at 10, 21, 63, 93, and 147 d of ages. The intestinal microbiota were altered with growth of pigs and were separated into three distinct clusters...
April 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29661966/pallidal-deep-brain-stimulation-disrupts-pallidal-beta-oscillations-and-coherence-with-primary-motor-cortex-in-parkinson-s-disease
#6
Doris D Wang, Coralie de Hemptinne, Svjetlana Miocinovic, Jill L Ostrem, Nicholas B Galifianakis, Marta San Luciano, Philip A Starr
In Parkinson's disease (PD), subthalamic nucleus beta band oscillations are decreased by therapeutic deep brain stimulation (DBS) and this has been proposed as important to the mechanism of therapy. The globus pallidus is a common alternative target for PD with similar motor benefits as subthalamic DBS, but effects of pallidal stimulation in PD are not well studied, and effects of pallidal DBS on cortical function in PD are unknown. Here, in 20 PD and 14 isolated dystonia human patients of both genders undergoing pallidal DBS lead implantation, we recorded local field potentials (LFPs) from the globus pallidus and in a subset of these, recorded simultaneous sensorimotor cortex electrocorticography (ECoG) potentials...
April 16, 2018: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29660940/age-dependent-changes-to-sphingolipid-balance-in-the-human-hippocampus-are-gender-specific-and-may-sensitize-to-neurodegeneration
#7
Timothy A Couttas, Nupur Kain, Collin Tran, Zac Chatterton, John B Kwok, Anthony S Don
The greatest risk factor for developing Alzheimer's disease (AD) is aging. The major genetic risk factor for AD is the ɛ4 allele of the APOE gene, encoding the brain's major lipid transport protein, apolipoprotein E (ApoE). The research community is yet to decipher why the ApoE4 variant pre-disposes to AD, and how aging causes the disease. Studies have shown deregulated levels of sphingolipids, including decreased levels of the neuroprotective signaling lipid sphingosine 1-phosphate (S1P), and increased ceramide content, in brain tissue and serum of people with pre-clinical or very early AD...
April 11, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29660643/gender-specific-associations-of-depression-and-anxiety-symptoms-with-mental-rotation
#8
Chiaki Oshiyama, Chihiro Sutoh, Hiroyasu Miwa, Satoshi Okabayashi, Hiroyuki Hamada, Daisuke Matsuzawa, Yoshiyuki Hirano, Tetsuya Takahashi, Shin-Ichi Niwa, Manabu Honda, Kazuyuki Sakatsume, Takuichi Nishimura, Eiji Shimizu
BACKGROUND: Men score higher on mental rotation tasks compared to women and suffer from depression and anxiety at half the rate of women. The objective of this study was to confirm the gender-specific effects of depression and anxiety on mental rotation performance. METHODS: We collected data in non-experimental conditions from 325 university students at three universities. Participants completed rating scales of depressive and anxiety symptoms, and then simultaneously performed a mental rotation task using tablet devices...
April 5, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29660548/how-to-deal-with-the-empty-space-after-organ-removal-for-transplantation-a-single-medical-center-experience
#9
Ding-Ping Sun, Ling-Hsien Lee, Yu-Feng Tian, Hong-Xiang Zheng, Jinn-Rung Kuo, Che-Chuan Wang
PURPOSE: Dealing with the empty space after organ removal for transplantation has not been investigated. MATERIALS AND METHODS: From January 28, 2005, to November 21, 2017, 111 organ donors were enrolled in this study. They were divided into three groups: no replacement, replaced with paper printed with organ graphics, or replaced with 3D-printed simulated organs after the organs were removed at different periods. The donor's age, gender, etiology of admission, characteristic and clinical pictures, time interval between admission and the date of donation, and time interval between donor coordinator consultations were evaluated...
April 13, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29660081/data-driven-analysis-of-functional-connectivity-reveals-a-potential-auditory-verbal-hallucination-network
#10
Dustin Scheinost, Fuyuze Tokoglu, Michelle Hampson, Ralph Hoffman, R Todd Constable
Schizophrenia is a severe global health problem, with over half of such patients experiencing auditory verbal hallucinations (AVHs). A better understanding of the neural correlates differentiating patients experiencing AVHs from patients not experiencing AVHs and healthy controls may identify targets that lead to better treatment strategies for AVHs. Employing 2 data-driven, voxel-based measure of functional connectivity, we studied 46 patients with schizophrenia or schizoaffective disorder (28 experiencing AVHs and 18 not experiencing AVHs)...
April 5, 2018: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/29660031/meningioma-transcription-factors-link-cell-lineage-with-systemic-metabolic-cues
#11
Ziming Du, Ryan Brewster, Parker H Merrill, Juliann Chmielecki, Josh Francis, Ayal Aizer, Malak Abedalthagafi, Lynette M Sholl, Lars Geffers, Brian Alexander, Sandro Santagata
Background: Tumor cells recapitulate cell-lineage transcriptional programs that are characteristic of normal tissues from which they arise. It is unclear why such lineage programs are fatefully maintained in tumors and if they contribute to cell proliferation and viability. Methods: Here, we used the most common brain tumor, meningioma, which is strongly associated with female gender and high body mass index (BMI), as a model system to address these questions. We screened expression profiling data to identify the transcription factor (TF) genes which are highly enriched in meningioma, and characterized the expression pattern of those TFs and downstream genes in clinical meningioma samples as well as normal brain tissues...
April 12, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29659656/sexual-risk-taking-and-subcortical-brain-volume-in-adolescence
#12
Sarah W Feldstein Ewing, Karen A Hudson, Justin Caouette, Andrew R Mayer, Rachel E Thayer, Sephira G Ryman, Angela D Bryan
Background : The developmental period of adolescence marks the initiation of new socioemotional and physical behaviors, including sexual intercourse. However, little is known about neurodevelopmental influences on adolescent sexual decision-making. Purpose: We sought to determine how subcortical brain volume correlated with condom use, and whether those associations differed by gender and pubertal development. Methods: We used FreeSurfer to extract subcortical volume among N = 169 sexually experienced youth (mean age 16...
April 6, 2018: Annals of Behavioral Medicine: a Publication of the Society of Behavioral Medicine
https://www.readbyqxmd.com/read/29653158/mice-deficient-in-akap13-brx-develop-compulsive-like-behavior-and-increased-body-weight
#13
K Maravet Baig, Szu-Chi Su, Sunni L Mumford, Emma Giuliani, Sinnie Sin Man Ng, Charles Armstrong, Margaret F Keil, Kamaria Cayton Vaught, Nils Olsen, Elyse Pettiford, Irina Burd, James H Segars
OBJECTIVE: Hormonal contributions to the sex-dependent development of both obsessive-compulsive disorder (OCD) and obesity have been described, but the underlying mechanisms are incompletely understood. A-kinase anchoring protein 13 (AKAP13) significantly augments ligand-dependent activation of estrogen receptors alpha and beta. The hypothalamus and pituitary gland are implicated in the development and exacerbation of OCD and obesity and have strong AKAP13 expression. The AKAP13 localization pattern observed in these key brain regions together with its effects on sex steroid action suggest a potential role for AKAP13 in compulsive-like behaviors...
April 10, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29649560/network-specialization-during-adolescence-hippocampal-effective-connectivity-in-boys-and-girls
#14
Jeffrey D Riley, E Elinor Chen, Jessica Winsell, Elysia Poggi Davis, Laura M Glynn, Tallie Z Baram, Curt A Sandman, Steven L Small, Ana Solodkin
Adolescence is a complex period of concurrent mental and physical development that facilitates adult functioning at multiple levels. Despite the growing number of neuroimaging studies of cognitive development in adolescence focusing on regional activation patterns, there remains a paucity of information about the functional interactions across these participating regions that are critical for cognitive functioning, including memory. The current study used structural equation modeling (SEM) to determine how interactions among brain regions critical for memory change over the course of adolescence...
April 9, 2018: NeuroImage
https://www.readbyqxmd.com/read/29649337/leg-length-skull-circumference-and-the-incidence-of-dementia-in-latin-america-and-china-a-10-66-population-based-cohort-study
#15
Martin J Prince, Daisy Acosta, Mariella Guerra, Yueqin Huang, Ivonne Z Jimenez-Velazquez, Juan J Llibre Rodriguez, Aquiles Salas, Ana Luisa Sosa, Michael E Dewey, Maelenn M Guerchet, Zhaorui Liu, Jorge J Llibre Guerra, A Matthew Prina
BACKGROUND: Adult leg length is influenced by nutrition in the first few years of life. Adult head circumference is an indicator of brain growth. Cross-sectional studies indicate inverse associations with dementia risk, but there have been few prospective studies. METHODS: Population-based cohort studies in urban sites in Cuba, Dominican Republic Puerto Rico and Venezuela, and rural and urban sites in Peru, Mexico and China. Sociodemographic and risk factor questionnaires were administered to all participants, and anthropometric measures taken, with ascertainment of incident dementia, and mortality, three to five years later...
2018: PloS One
https://www.readbyqxmd.com/read/29648581/multiple-sclerosis-lesions-affect-intrinsic-functional-connectivity-of-the-spinal-cord
#16
Benjamin N Conrad, Robert L Barry, Baxter P Rogers, Satoshi Maki, Arabinda Mishra, Saakshi Thukral, Subramaniam Sriram, Aashim Bhatia, Siddharama Pawate, John C Gore, Seth A Smith
Patients with multiple sclerosis present with focal lesions throughout the spinal cord. There is a clinical need for non-invasive measurements of spinal cord activity and functional organization in multiple sclerosis, given the cord's critical role in the disease. Recent reports of spontaneous blood oxygenation level-dependent fluctuations in the spinal cord using functional MRI suggest that, like the brain, cord activity at rest is organized into distinct, synchronized functional networks among grey matter regions, likely related to motor and sensory systems...
April 10, 2018: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29643001/immune-cell-bdnf-expression-in-treatment-na%C3%A3-ve-relapsing-remitting-multiple-sclerosis-patients-and-following-one-year-of-immunomodulation-therapy
#17
Alicja Kalinowska-Łyszczarz, Mikołaj A Pawlak, Aleksandra Wyciszkiewicz, Krystyna Osztynowicz, Wojciech Kozubski, Sławomir Michalak
Although neurons are the main source of neurotrophins in the healthy brain, neurotrophins can also be expressed in the immune system. We have previously shown that in relapsing-remitting multiple sclerosis (RRMS) lower immune-cell neurotrophin levels are associated with brain atrophy and cognitive impairment. The aim of the present study was to assess if immune-cell neurotrophin expression is impaired in MS as compared with the healthy controls, and to describe if these levels change in treatment-naïve RRMS patients, following one year of immunomodulation...
March 29, 2018: Neurologia i Neurochirurgia Polska
https://www.readbyqxmd.com/read/29627763/-lipid-raft-aging-in-the-human-frontal-cortex-during-nonpathological-aging-gender-influences-and-potential-implications-in-alzheimer-s-disease
#18
Mario Díaz, Noemí Fabelo, Isidre Ferrer, Raquel Marín
Lipid rafts are highly dynamic membrane domains featured by distinctive biochemical composition and physicochemical properties compared with the surrounding plasma membrane. These microstructures are associated not only with cellular signaling and communication in normal nerve cells but also with pathological processing of amyloid precursor protein in Alzheimer's disease. Using lipid rafts isolated from human frontal cortex in nondemented subjects aging 24 to 85 years, we demonstrate here that lipid structure of lipid rafts undergo significant alterations of specific lipid classes and phospholipid-bound fatty acids as brain cortex correlating with aging...
March 10, 2018: Neurobiology of Aging
https://www.readbyqxmd.com/read/29626648/abnormal-circadian-locomotor-rhythms-and-per-gene-expression-in-six-month-old-triple-transgenic-mice-model-of-alzheimer-s-disease
#19
Meina Wu, Fang Zhou, Xiuli Cao, Junting Yang, Yu Bai, Xudong Yan, Jimin Cao, Jinshun Qi
Circadian rhythm disturbance (CRD) is one of the iconic manifestations in Alzheimer's disease (AD), a disease tightly associated with age, but the characteristics and gender difference of CRD occurred in AD have not been well demonstrated. Using 6-month-old triple transgenic AD mouse model (3xTg-AD) without obvious brain pathological changes, we demonstrated the gender difference of CRD at this age. We further showed abnormal Per gene expression in the central clock suprachiasmatic nucleus (SCN) of the 3xTg-AD mice...
April 4, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29622371/a-reanalysis-of-predictors-for-the-risk-of-hemorrhage-in-brain-arteriovenous-malformation
#20
Zheng Huang, Kang Peng, Changqing Chen, Feiyue Zeng, Junyu Wang, Fenghua Chen
BACKGROUND: Brain arteriovenous malformation (BAVM) is a congenital cerebral vascular disease that characterized with intracranial hemorrhage and epilepsy. It has some risk in current treatments including microsurgery, endovascular, and radiation therapy. Some patients with bAVMs may keep unruptured in their whole life. Whether it should be treated depends on the evaluation of the hemorrhage risk of bAVM. Although previous studies gave many significant predictors, we tried to find some new and more significant predictors in 173 patients with bAVMS by retrospective analysis...
April 2, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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