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https://www.readbyqxmd.com/read/27915481/effects-of-combination-treatment-of-alpha-1-adrenergic-receptor-antagonists-on-voiding-dysfunction-study-on-target-organs-in-overactive-bladder-rats
#1
Il Gyu Ko, Bo Min Moon, Sung Eun Kim, Jun Jang Jin, Lakkyong Hwang, Eun Sang Ji, Chang Ju Kim, Tai Hyung Kim, Hyun Hee Choi, Kyung Jin Chung
PURPOSE: Overactive bladder (OAB) causes urinary urgency, usually accompanied by frequency and nocturia. Alpha 1-adrenergic receptor (α1-AR) antagonists are known to improve lower urinary tract symptoms associated with OAB. The α1-AR antagonists constitute a variety of drugs according to the receptor subtype affinity. This study investigated the efficacy of tamsulosin, naftopidil, and a combination of the two on OAB rats. METHODS: The OAB rat model was induced by an intraperitoneal injection of cyclophosphamide for 14 days...
November 2016: International Neurourology Journal
https://www.readbyqxmd.com/read/27911395/preparation-of-primary-mixed-glial-cultures-from-adult-mouse-spinal-cord-tissue
#2
Jennifer T Malon, Ling Cao
It has been well-accepted that spinal cord glial responses contribute significantly to the development of neuropathic pain. Tremendous information regarding glial activities at the cellular and molecular levels has been obtained through in vitro cell culture systems. The in vitro systems utilized, mainly include primary glia derived from neonatal brain cortical tissue and immortalized cell lines. However, these systems may not reflect the characteristics of spinal cord glial cells in vivo. In order to further investigate the roles of spinal cord glial cells in the development of peripheral nerve injury-induced neuropathic pain using a culture system that better reflects the in vivo condition, our laboratory has developed a method to establish primary spinal cord mixed glial cultures from adult mice...
November 19, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27908212/are-crh-ngf-as-psychoneuroimmune-regulators-in-women-with-polycystic-ovary-syndrome
#3
F Z Zangeneh, M M Naghizadeh, M Bagheri, M Jafarabadi
PURPOSE: Polycystic ovary syndrome (PCOS) affects quality of life and can worsen anxiety and depression either due to the features of PCOS or due to the diagnosis of a chronic disease. Corticotrophin-releasing hormone (CRH) and nerves growth factor (NGF) are the modulator for the actions of the sympathetic nervous and immune systems. METHODS: In total, 171 women divided into two groups: study and control groups. Serum CRH, NGF, and interleukins: IL-1α. IL-1β, 17A, and TNFα were determined by ELISA Kits in both groups...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27907118/end-to-side-neurorrhaphy-as-schwann-cells-provider-to-acellular-nerve-allograft-and-its-suitable-application
#4
Hidekazu Yoshizawa, Daiki Senda, Yuhei Natori, Rica Tanaka, Hiroshi Mizuno, Ayato Hayashi
Axonal regeneration relies on support from proliferating host Schwann cells (SCs), and previous studies on acellular nerve allografts (ANGs) suggest that axons can regenerate into ANGs within a limited distance. Numerous studies have demonstrated that the supplementation of ANGs with exogenous factors, such as cultured SCs, stem cells, and growth factors, promote nerve regeneration in ANGs. However, there are several problems associated with their utilization. In this study, we investigated whether end-to-side (ETS) neurorrhaphy, which is an axonal provider, could be useful as an SC provider to support axonal elongation in ANGs...
2016: PloS One
https://www.readbyqxmd.com/read/27906586/neural-differentiation-of-mesenchymal-stem-cells-on-scaffolds-for-nerve-tissue-engineering-applications
#5
Kerlin Quintiliano, Thayane Crestani, Davi Silveira, Virginia Etges Helfer, Annelise Rosa, Eduardo Balbueno, Daniela Steffens, Geraldo Pereira Jotz, Diogo André Pilger, Patricia Pranke
Scaffolds produced by electrospinning act as supports for cell proliferation and differentiation, improved through the release of neurotrophic factors. The objective of this study was to develop aligned and random nanofiber scaffolds with and without nerve growth factor to evaluate the potential of mesenchymal stem cells (MSCs) for neural differentiation. Nanofiber morphology, diameter, degradability, cell morphology, adhesion, proliferation, viability, cytotoxicity, and neural differentiation were performed to characterize the scaffolds...
November 2016: Cellular Reprogramming
https://www.readbyqxmd.com/read/27905881/bone-morphogenetic-protein-2-mediated-pain-and-inflammation-in-a-rat-model-of-posterolateral-arthrodesis
#6
Kendall Mitchell, Jill P Shah, Clifton L Dalgard, Lyubov V Tsytsikova, Ashley C Tipton, Anton E Dmitriev, Aviva J Symes
BACKGROUND: Bone morphogenetic protein-2 (BMP-2) is a pleiotropic, secreted molecule with diverse effects. The potent ability of BMP-2 to stimulate bone growth prompted its widespread clinical use for arthrodesis (spine fusion). However, elevated post-operative pain in patients treated with BMP-2 has been increasingly reported. Determining whether BMP-2 induces pain directly or whether it induces neuroinflammation, which could lower the threshold for pain, is important for developing therapeutic interventions...
December 1, 2016: BMC Neuroscience
https://www.readbyqxmd.com/read/27904478/neuro-rejuvenation-for-neuronal-function
#7
REVIEW
Yuan Liu, Richard K Lee
Neurodegenerative eye diseases, such as glaucoma, cause irreversible vision loss in millions of patients worldwide, creating serious medical, economic and social issues. Like other mammalian central nervous system tracts, optic nerve intrinsically lacks the capacity for axonal growth and its surrounding environment is also non-permissive to regeneration. Any axonal damage also triggers a vicious cycle of retinal ganglion cell (RGC) death. Exploring methods that can enhance RGCs survival and promote axonal regeneration will not only enable vision restoration for millions of patients, but also shed light on the treatment of other neurodegenerative diseases...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27904476/impairment-of-the-nerve-growth-factor-pathway-driving-amyloid-accumulation-in-cholinergic-neurons-the-incipit-of-the-alzheimer-s-disease-story
#8
REVIEW
Viviana Triaca, Pietro Calissano
The current idea behind brain pathology is that disease is initiated by mild disturbances of common physiological processes. Overtime, the disruption of the neuronal homeostasis will determine irreversible degeneration and neuronal apoptosis. This could be also true in the case of nerve growth factor (NGF) alterations in sporadic Alzheimer's disease (AD), an age-related pathology characterized by cholinergic loss, amyloid plaques and neurofibrillary tangles. In fact, the pathway activated by NGF, a key neurotrophin for the metabolism of basal forebrain cholinergic neurons (BFCN), is one of the first homeostatic systems affected in prodromal AD...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27904475/transforming-growth-factor-beta-1-a-cytokine-with-regenerative-functions
#9
REVIEW
Wale Sulaiman, Doan H Nguyen
We review the biology and role of transforming growth factor beta 1 (TGF-β1) in peripheral nerve injury and regeneration, as it relates to injuries to large nerve trunks (i.e., sciatic nerve, brachial plexus), which often leads to suboptimal functional recovery. Experimental studies have suggested that the reason for the lack of functional recovery resides in the lack of sufficient mature axons reaching their targets, which is a result of the loss of the growth-supportive environment provided by the Schwann cells in the distal stump of injured nerves...
October 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27903183/stereotactic-radiosurgery-for-vestibular-schwannomas-average-10-year-follow-up-results-focusing-on-long-term-hearing-preservation
#10
Shinya Watanabe, Masaaki Yamamoto, Takuya Kawabe, Takao Koiso, Tetsuya Yamamoto, Akira Matsumura, Hidetoshi Kasuya
OBJECTIVE The aim of this study was to reappraise long-term treatment outcomes of stereotactic radiosurgery (SRS) for vestibular schwannomas (VSs). The authors used a database that included patients who underwent SRS with a unique dose-planning technique, i.e., partial tumor coverage designed to avoid excess irradiation of the facial and cochlear nerves, focusing on tumor control and hearing preservation. Clinical factors associated with post-SRS tumor control and long-term hearing preservation were also analyzed...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27900916/electrically-evoked-compound-action-potentials-are-different-depending-on-the-site-of-cochlear-stimulation
#11
Paul van de Heyning, Santiago L Arauz, Marcus Atlas, Wolf-Dieter Baumgartner, Marco Caversaccio, Ronel Chester-Browne, Patricia Estienne, Javier Gavilan, Benoit Godey, Wolfgang Gstöttner, Demin Han, Rudolph Hagen, Martin Kompis, Vlad Kuzovkov, Luis Lassaletta, Franc Lefevre, Yongxin Li, Joachim Müller, Lorne Parnes, Andrea Kleine Punte, Christopher Raine, Gunesh Rajan, Adriana Rivas, José Antonio Rivas, Nicola Royle, Georg Sprinzl, Kurt Stephan, Adam Walkowiak, Yuri Yanov, Kim Zimmermann, Patrick Zorowka, Henryk Skarzynski
One of the many parameters that can affect cochlear implant (CI) users' performance is the site of presentation of electrical stimulation, from the CI, to the auditory nerve. Evoked compound action potential (ECAP) measurements are commonly used to verify nerve function by stimulating one electrode contact in the cochlea and recording the resulting action potentials on the other contacts of the electrode array. The present study aimed to determine if the ECAP amplitude differs between the apical, middle, and basal region of the cochlea, if double peak potentials were more likely in the apex than the basal region of the cochlea, and if there were differences in the ECAP threshold and recovery function across the cochlea...
November 30, 2016: Cochlear Implants International
https://www.readbyqxmd.com/read/27899317/neurotrophic-factor-mediated-neuronal-differentiation-of-human-cord-blood-mesenchymal-stem-cells-and-their-applicability-to-assess-the-developmental-neurotoxicity
#12
Sadaf Jahan, Dipak Kumar, Ashvini Kumar, Chetan Singh Rajpurohit, Shripriya Singh, Akriti Srivastava, Ankita Pandey, A B Pant
Plasticity and developmental capacity of stem cells have now been established as a promising tool to restore the degenerative disorders. The linearity differentiation of human mesenchymal stem cells (hMSCs) into adipogenic, chondrogenic, osteogenic and even in neuronal subtypes has been demonstrated. The number of xenobiotics such as dexamethasone, insulin, isobutyl 1-methyle xanthine and retinoic acid has been reported for the potential to differentiate hMSCs into neuronal subtypes. But, the applicability of indigenous neurotrophic factor-nerve growth factor (NGF) has not been explored for the purpose...
November 27, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27898841/rapid-communication-nerve-growth-factor-influences-cleavage-rate-and-embryo-development-in-sheep
#13
M Crispo, P C Dos Santos-Neto, M Vilariño, A P Mulet, A de León, L Barbeito, A Menchaca
Recent information about Nerve growth factor (NGF), a protein traditionally associated to the nervous system that regulates survival and maturation of developing neurons, suggests that it may exert action also on different levels in the reproductive system. The aim of this study was to evaluate the effect of NGF added during in vitro oocyte maturation, fertilization or in vitro embryo development in sheep. Nerve growth factor was supplemented to the culture medium at 0, 100, or 1,000 ng/mL, during either in vitro maturation (Exp...
October 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898606/facial-nerve-meningioma-a-cause-of-pediatric-facial-weakness
#14
Nicholas L Deep, Sharon H Gnagi, David F Carpentieri, P David Adelson, Peter A Weisskopf
OBJECTIVE: To present an unusual case of a temporal bone meningioma with intrafascicular spread throughout the temporal facial nerve from cerebellopontine angle (CPA) to stylomastoid foramen. PATIENT: Four-year-old female with progressive facial weakness and normal hearing. MAIN OUTCOME MEASURE: Clinical, radiological, and histopathological findings of temporal bone meningiomas. RESULTS: A patient presented with progressive facial weakness and normal hearing...
November 24, 2016: Otology & Neurotology
https://www.readbyqxmd.com/read/27898492/growth-hormone-regulates-the-sensitization-of-developing-peripheral-nociceptors-during-cutaneous-inflammation
#15
Xiaohua Liu, Kathryn J Green, Zachary K Ford, Luis F Queme, Peilin Lu, Jessica L Ross, Frank B Lee, Aaron T Shank, Renita C Hudgins, Michael P Jankowski
Cutaneous inflammation alters the function of primary afferents and gene expression in the affected dorsal root ganglia (DRGs). However specific mechanisms of injury-induced peripheral afferent sensitization and behavioral hypersensitivity during development are not fully understood. Recent studies in children suggest a potential role for growth hormone (GH) in pain modulation. GH modulates homeostasis and tissue repair after injury, but how GH effects nociception in neonates is not known. To determine if GH played a role in modulating sensory neuron function and hyper-responsiveness during skin inflammation in young mice, we examined behavioral hypersensitivity and the response properties of cutaneous afferents using an ex vivo hairy skin-saphenous nerve-dorsal root ganglion (DRG)-spinal cord preparation...
November 18, 2016: Pain
https://www.readbyqxmd.com/read/27898323/peripheral-blood-nerve-growth-factor-levels-in-major-psychiatric-disorders
#16
Shuquan Rao, Mónica Martínez-Cengotitabengoa, Yao Yao, Zhiyun Guo, Qi Xu, Suiyan Li, Xianli Zhou, Fuquan Zhang
Nerve growth factor (NGF) plays crucial roles in promoting neural growth and survival, and mediating synaptic and morphological plasticity. Several studies investigated the correlation between peripheral NGF levels and major psychiatric disorders, including schizophrenia (SCZ), major depressive disorder (MDD) and bipolar disorder (BPD); however, the findings were inconsistent. This meta-analysis sought to investigate blood NGF levels in patients with psychiatric disorders compared with healthy subjects and examined potential effects of blood fraction, medication and disease status...
November 22, 2016: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/27898033/towards-clinical-application-of-neurotrophic-factors-to-the-auditory-nerve-assessment-of-safety-and-efficacy-by-a-systematic-review-of-neurotrophic-treatments-in-humans
#17
REVIEW
Aren Bezdjian, Véronique J C Kraaijenga, Dyan Ramekers, Huib Versnel, Hans G X M Thomeer, Sjaak F L Klis, Wilko Grolman
Animal studies have evidenced protection of the auditory nerve by exogenous neurotrophic factors. In order to assess clinical applicability of neurotrophic treatment of the auditory nerve, the safety and efficacy of neurotrophic therapies in various human disorders were systematically reviewed. Outcomes of our literature search included disorder, neurotrophic factor, administration route, therapeutic outcome, and adverse event. From 2103 articles retrieved, 20 randomized controlled trials including 3974 patients were selected...
November 26, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27893605/synergistic-combinations-of-five-single-drugs-from-centella-asiatica-for-neuronal-differentiation
#18
Jinjin Lin, Hui Jiang, Xianting Ding
To identify alternatives of nerve growth factor, which could promote NF68 protein expression and contribute toward neuronal differentiation, five compounds namely: asiatic acid, madecassic, madecassoside, quercetin, and isoquercetin, obtained from Centella asiatica, were examined for their neuronal differentiation effects on PC12 cells. C. asiatica has been applied as an effective herbal medicine for the treatment of various diseases, including depression. According to a statistical design of experiments, both single compound and compound combinations were evaluated...
January 1, 2017: Neuroreport
https://www.readbyqxmd.com/read/27891281/septooptic-dysplasia-with-an-associated-arachnoid-cyst
#19
Skyler V McLaurin-Jiang, Julie K Wood, David F Crudo
A 4-week-old male infant presented with hypothermia, hypoglycemia, and hyperbilirubinemia. His medical history was remarkable for hydrocephalus secondary to an arachnoid cyst, intermittent hypoglycemia, hypothermia, and poor feeding requiring nasogastric tube for nutrition. Physical exam revealed retrognathia, mild hypotonia, micropenis, and clinodactyly. Ophthalmologic exam demonstrated bilateral optic nerve hypoplasia (ONH). Laboratory data confirmed inadequate cortisol and growth hormone response to hypoglycemia, a low thyroxine level, and direct hyperbilirubinemia...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27890538/a-model-for-stretch-growth-of-neurons
#20
Prashant K Purohit, Douglas H Smith
In the first phase of axon growth, axons sprout from neuron bodies and are extended by the pull of the migrating growth cones towards their targets. Thereafter, once the target is reached, a lesser known second phase of axon growth ensues as the mechanical forces from the growth of the animal induce extension of the integrated axons in the process of forming tracts and nerves. Although there are several microscopic physics based models of the first phase of axon growth, to date, there are no models of the very different second phase...
November 18, 2016: Journal of Biomechanics
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