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https://www.readbyqxmd.com/read/28106785/ketamine-analog-methoxetamine-induced-inflammation-and-dysfunction-of-bladder-in-rats
#1
Qiang Wang, Qinghui Wu, Junpeng Wang, Yang Chen, Guihao Zhang, Jiawei Chen, Jie Zhao, Peng Wu
The novel synthetic psychoactive ketamine analog methoxetamine is reportedly being used for recreational purposes. As ketamine use can result in urinary dysfunction, we conducted the present study to investigate how methoxetamine affects the bladder. A cystometry investigation showed that female Sprague-Dawley rats experienced increased micturition frequency bladder dysfunction after receiving a daily intraperitoneal injection of 30 mg/kg methoxetamine or ketamine for periods of 4 or 12 weeks. Histologic examinations of rat bladder tissue revealed damaged urothelium barriers, as well as evidence of inflammatory cell infiltration and matrix deposition...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28104919/next-generation-flow-ngf-for-highly-sensitive-and-standardized-detection-of-minimal-residual-disease-in-multiple-myeloma
#2
J Flores-Montero, L S Flores, B Paiva, N Puig, Omar García-Sánchez, S Böttcher, V H J van der Velden, J-J Pérez-Morán, M-B Vidriales, R García-Sanz, C Jimenez, M González, J Martinez-López, A C Mateos, G-E Grigore, R Fluxá, R Pontes, J Caetano, L Sedek, M-C Del Cañizo, J Bladé, J-J Lahuerta, C Aguilar, A Bárez, A García-Mateo, J Labrador, P Leoz, C Aguilera-Sanz, J San-Miguel, M-V Mateos, B Durie, J J M van Dongen, A Orfao
Flow cytometry has become a highly valuable method to monitor minimal residual disease (MRD) and evaluate the depth of complete response (CR) in bone marrow (BM) of multiple myeloma (MM) after therapy. However, current flow-MRD has lower sensitivity than molecular methods and lacks standardization. Here we report on a novel next generation flow (NGF) approach for highly-sensitive and standardized MRD detection in MM. An optimized 2-tube 8-color antibody panel was constructed in five cycles of design-evaluation-redesign...
January 20, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28102732/exacerbating-effects-of-pm2-5-in-ova-sensitized-and-challenged-mice-and-the-expression-of-trpa1-and-trpv1-protein-in-lung
#3
Hong Liu, Xinsheng Fan, Naiqian Wang, Yuyan Zhang, Jinghua Yu
OBJECTIVE: To investigate the effects of PM2.5 on asthma-related phenotypes and on the expression of TRPA1, V1 protein in lung in a mouse model of asthma. METHODS: Female Balb/c mice were utilized to establish 28 and 42 day asthma models. Mice were sensitized with OVA and challenged with OVA, OVA plus normal saline (NS), or OVA plus PM2.5 at two doses, 1.6 mg·kg(-1) or 8.0 mg·kg(-1). PM2.5 was administrated by intratracheal instillationwithout anesthesia. 24 hours after the final OVA challenge changes in airway resistance (RI) and lung compliance (Cdyn) in response to acetylcholine chloride (ACH) were evaluated, and blood, bronchoalveolar lavage fluid (BALF) and lung tissue samples were taken...
January 19, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28102552/could-urinary-nerve-growth-factor-be-a-biomarker-for-overactive-bladder%C3%A2-a-meta-analysis
#4
REVIEW
Wei Sheng, Hongwei Zhang, Kirschner-Hermanns Ruth
OBJECTIVE: The previously reported association between urinary nerve growth factor (NGF) and overactive bladder (OAB) was controversial. We performed this meta-analysis based on current available studies to sum up all evidence on this association. METHODS: Studies were identified by searching PubMed, Embase, and Cochrane library from inception to September 2016. Pooled standardized mean difference (SMD) with their corresponding 95% confidence intervals (CIs) were calculated using a random-effects model...
January 19, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28100421/osteoarthritis-year-in-review-2016-biology
#5
REVIEW
E N Blaney Davidson, A P M van Caam, P M van der Kraan
This review highlights a selection of literature in the area of osteoarthritis biology published between the 2015 and 2016 Osteoarthritis Research Society International (OARSI) World Congress. Highlights were selected from a pubmed search covering cartilage, bone, inflammation and pain. A personal selection was made based, amongst other things, on topics presented during the 2015 conference. This covers circadian rhythm, TGF-β signaling, autophagy, SIRT6, exercise, lubricin, TLR's, pain and NGF. Furthermore, in this review we have made an effort to connect these seemingly distant topics into one scheme of connections between them, revealing a theoretical big picture underneath...
December 17, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28099928/the-sdf-1-cxcr4-axis-promotes-recovery-after-spinal-cord-injury-by-mediating-bone-marrow-derived-from-mesenchymal-stem-cells
#6
Guo-Dong Wang, Yi-Xun Liu, Xiao Wang, Yong-Le Zhang, Ya-Dong Zhang, Feng Xue
This study aims to explore the role of the SDF-1/CXCR4 axis in mediating BMSCs and SCI recovery. BMSCs were collected and SCI rat models were established. Wistar rats were assigned into the blank control, sham, SCI, SCI + BMSCs, SCI + BMSCs + SDF-1, SCI + BMSCs + AMD3100 (an inhibitor of SDF-1/CXCR4 axis) and SCI + BMSCs + SDF-1 + AMD3100 groups. Hind limb motor function was measured 7, 14, 21 and 28 days after operation. qRT-PCR, western blotting and ELISA was performed to determine the expressions of SDF-1, CXCR4, NGF, BDNF, GFAP and GAP-43, TNF-α, IL-1β, L-6 and IFN-γ...
January 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28098758/neurotrophin-promotes-neurite-outgrowth-by-inhibiting-rif-gtpase-activation-downstream-of-mapks-and-pi3k-signaling
#7
Xiaoxia Tian, Huijuan Yan, Jiayi Li, Shuang Wu, Junyu Wang, Lifei Fan
Members of the well-known semaphorin family of proteins can induce both repulsive and attractive signaling in neural network formation and their cytoskeletal effects are mediated in part by small guanosine 5'-triphosphatase (GTPases). The aim of this study was to investigate the cellular role of Rif GTPase in the neurotrophin-induced neurite outgrowth. By using PC12 cells which are known to cease dividing and begin to show neurite outgrowth responding to nerve growth factor (NGF), we found that semaphorin 6A was as effective as nerve growth factor at stimulating neurite outgrowth in PC12 cells, and that its neurotrophic effect was transmitted through signaling by mitogen-activated protein kinases (MAPKs) and phosphatidylinositol-3-kinase (PI3K)...
January 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28090777/biodegradable-neuro-compatible-peptide-hydrogel-promotes-neurite-outgrowth-shows-significant-neuroprotection-and-delivers-anti-alzheimer-drug
#8
Anindyasundar Adak, Gaurav Das, Surajit Barman, Saswat Mohapatra, Debmalya Bhunia, Batakrishna Jana, Surajit Ghosh
A novel neuro-compatible peptide based hydrogel has been designed and developed, which contains microtubule stabilizing and neuroprotective short peptide. This hydrogel shows strong three dimensional cross-linked fibrillary networks, which can capture water molecules. Interestingly, this hydrogel serves as excellent biocompatible soft-material for 2D and 3D (neuro-sphere) neuron cell culture and provides stability of key cytoskeleton filaments such as microtubule and actin. Remarkably, it was observed that this hydrogel slowly enzymatically degrades and releases neuroprotective peptide, which promotes neurite outgrowth of neuron cell as well as exhibits excellent neuroprotection against anti-NGF induced toxicity in neuron cells...
January 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28090659/the-effect-of-intradetrusor-botulinum-neurotoxin-type-a-on-urinary-ngf-tgf-beta-1-timp-2-levels-in-children-with-neurogenic-detrusor-overactivity-due-to-myelodysplasia
#9
Tuncay Top, Cagri Akin Sekerci, Banu Isbilen-Basok, Yiloren Tanidir, Ilker Tinay, Ferruh Kemal Isman, Cem Akbal, Ferruh Simsek, Tufan Tarcan
AIMS: The aim of this study was to determine the value of urine nerve growth factor (NGF), transforming growth factor beta 1 (TGF-Beta-1), tissue inhibitor of matrix metalloproteinase 2 (TIMP-2) levels to predict the urodynamic profile before and after botulinum neurotoxin type A (BoNT-A) treatment in children with myelodysplasia. METHODS: This prospective study included 15 children with myelodysplasia who underwent intradetrusor BoNT-A injections due to neurogenic detrusor overactivity (NDOA)...
January 16, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28090348/changes-in-hba1c-and-circulating-and-adipose-tissue-androgen-levels-in-overweight-obese-women-with-polycystic-ovary-syndrome-in-response-to-electroacupuncture
#10
E Stener-Victorin, M Maliqueo, M Soligo, V Protto, L Manni, E Jerlhag, M Kokosar, A Sazonova, C J Behre, M Lind, C Ohlsson, K Højlund, A Benrick
AIM: Insulin sensitivity is ~40% lower in women with polycystic ovary syndrome (PCOS) than in controls. We tested the hypothesis that 5 weeks of electroacupuncture treatment improves glucose regulation and androgen levels in overweight/obese women with PCOS. MATERIAL AND METHODS: Seventeen women with PCOS, aged 18 to 38 years, with a body mass index (BMI) ≥25 kg/m(2) and diagnosed with PCOS were included in this experimental and feasibility study and subjected to five weeks of electroacupuncture treatments three times/week...
December 2016: Obesity Science & Practice
https://www.readbyqxmd.com/read/28079757/pathogenesis-of-abdominal-pain-in-bowel-obstruction-role-of-mechanical-stress-induced-upregulation-of-nerve-growth-factor-in-gut-smooth-muscle-cells
#11
You-Min Lin, Yu Fu, John Winston, Ravi Radhakrishnan, Sushil K Sarna, Li-Yen M Huang, Xuan-Zheng Shi
Abdominal pain is one of the major symptoms in bowel obstruction (BO); its cellular mechanisms remain incompletely understood. We tested the hypothesis that mechanical stress in obstruction upregulates expression of nociception mediator nerve growth factor (NGF) in gut smooth muscle cells (SMC), and NGF sensitizes primary sensory nerve to contribute to pain in BO. Partial colon obstruction was induced with a silicon band implanted in the distal bowel of Sprague-Dawley rats. Colon-projecting sensory neurons in the dorsal root ganglia (DRG, T13 to L2) were identified for patch clamp and gene expression studies...
January 6, 2017: Pain
https://www.readbyqxmd.com/read/28076410/role-for-egr1-in-the-transcriptional-program-associated-with-neuronal-differentiation-of-pc12-cells
#12
Kenneth W Adams, Sergey Kletsov, Ryan J Lamm, Jessica S Elman, Steven Mullenbrock, Geoffrey M Cooper
PC12 cells are a well-established model to study how differences in signal transduction duration can elicit distinct cell behaviors. Epidermal growth factor (EGF) activates transient ERK signaling in PC12 cells that lasts 30-60 min, which in turn promotes proliferation; nerve growth factor (NGF) activates more sustained ERK signaling that lasts 4-6 h, which in turns induces neuronal differentiation. Data presented here extend a previous study by Mullenbrock et al. (2011) that demonstrated that sustained ERK signaling in response to NGF induces preferential expression of a 69-member gene set compared to transient ERK signaling in response to EGF and that the transcription factors AP-1 and CREB play a major role in the preferential expression of several genes within the set...
2017: PloS One
https://www.readbyqxmd.com/read/28073000/settling-a-nervous-stomach-the-neural-regulation-of-enteric-cancer
#13
Michelle Monje
The nervous system is emerging as a regulator of malignancy. In this issue of Cancer Cell, Hayakawa et al. demonstrate a feedforward signaling loop in which tumor-derived nerve growth factor promotes enteric tumor innervation, and recruited nerves drive cancer growth through acetylcholine-regulated Wnt signaling and stimulation of further NGF release.
January 9, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28070123/a-meta-analysis-of-peripheral-blood-nerve-growth-factor-levels-in-patients-with-schizophrenia
#14
X-Y Qin, H-T Wu, C Cao, Y P Loh, Y Cheng
Neurotrophins particularly brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) are crucial modulators in the neurodevelopment and maintenance of central and peripheral nervous systems. Neurotrophin hypothesis of schizophrenia (SCZ) postulated that the changes in the brains of SCZ patients are the result of disturbances of developing processes involving neurotrophic factors. This hypothesis was mainly supported by the abnormal regulation of BDNF in SCZ, especially the decreased peripheral blood BDNF levels in SCZ patients validated by several meta-analyses...
January 10, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28068360/exploring-serum-levels-of-brain-derived-neurotrophic-factor-and-nerve-growth-factor-across-glaucoma-stages
#15
Francesco Oddone, Gloria Roberti, Alessandra Micera, Anna Busanello, Stefano Bonini, Luciano Quaranta, Luca Agnifili, Gianluca Manni
PURPOSE: To investigate the serum levels of Brain Derived Neurotrophic Factor (BDNF) and Nerve Growth Factor (NGF) in patients affected by primary open angle glaucoma with a wide spectrum of disease severity compared to healthy controls and to explore their relationship with morphological and functional glaucoma parameters. MATERIALS AND METHODS: 45 patients affected by glaucoma at different stages and 15 age-matched healthy control subjects underwent visual field testing, peripapillary retinal nerve fibre layer thickness measurement using Spectral Domain Optical Coherence Tomography and blood collection for both neurotrophins detection by Enzyme-Linked Immunosorbent Assay...
2017: PloS One
https://www.readbyqxmd.com/read/28067793/time-dependent-nerve-growth-factor-signaling-changes-in-the-rat-retina-during-optic-nerve-crush-induced-degeneration-of-retinal-ganglion-cells
#16
Louise A Mesentier-Louro, Sara De Nicolò, Pamela Rosso, Luigi A De Vitis, Valerio Castoldi, Letizia Leocani, Rosalia Mendez-Otero, Marcelo F Santiago, Paola Tirassa, Paolo Rama, Alessandro Lambiase
Nerve growth factor (NGF) is suggested to be neuroprotective after nerve injury; however, retinal ganglion cells (RGC) degenerate following optic-nerve crush (ONC), even in the presence of increased levels of endogenous NGF. To further investigate this apparently paradoxical condition, a time-course study was performed to evaluate the effects of unilateral ONC on NGF expression and signaling in the adult retina. Visually evoked potential and immunofluorescence staining were used to assess axonal damage and RGC loss...
January 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28064076/drospirenone-reduces-inflammatory-cytokines-vascular-endothelial-growth-factor-vegf-and-nerve-growth-factor-ngf-expression-in-human-endometriotic-stromal-cells
#17
Tomoko Makabe, Kaori Koga, Mariko Miyashita, Arisa Takeuchi, Fusako Sue, Ayumi Taguchi, Yoko Urata, Gentaro Izumi, Masashi Takamura, Miyuki Harada, Tetsuya Hirata, Yasushi Hirota, Osamu Wada-Hiraike, Tomoyuki Fujii, Yutaka Osuga
Drospirenone has been used as a progestin in oral contraceptives with ethinyl estradiol (DRSP/EE) and is expected to regulate endometriosis, however, the direct effects of drospirenone on endometriosis have not been clarified. The aim of this study was to evaluate the anti-inflammatory, anti-angiogenic and anti-neurogenic effects of drospirenone on endometriotic stromal cells (ESC). ESC isolated from endometriotic tissues were obtained from patients during laparoscopic surgery for ovarian endometriosis. ESC were exposed to IL-1β and cultured in the absence or presence of drospirenone...
December 29, 2016: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28063984/protein-toxins-of-the-echis-coloratus-viper-venom-directly-activate-trpv1
#18
Matan Geron, Rakesh Kumar, Henry Matzner, Adi Lahiani, Galit Gincberg, Gadi Cohen, Philip Lazarovici, Avi Priel
BACKGROUND: Peptide and protein toxins are essential tools to dissect and probe the biology of their target receptors. Venoms target vital physiological processes to evoke pain. Snake venoms contain various factors with the ability to evoke, enhance and sustain pain sensation. While a number of venom-derived toxins were shown to directly target TRPV1 channels expressed on somatosensory nerve terminals to evoke pain response, such toxins were yet to be identified in snake venoms. METHODS: We screened Echis coloratus saw-scaled viper venom's protein fractions isolated by reversed phase HPLC for their ability to activate TRPV1 channels...
January 4, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28063649/biologic-drugs-as-analgesics-for-the-management-of-osteoarthritis
#19
REVIEW
Theodoros Dimitroulas, Tosin Lambe, Rainer Klocke, George D Kitas, Rui V Duarte
BACKGROUND: Biologic drugs are novel therapeutic agents with demonstrated effectiveness in the management of a variety of chronic inflammatory disorders. Unmet needs in the treatment of chronic pain have led physicians to utilize a similar approach to patients suffering from conditions not characterized by systemic inflammation such as osteoarthritis (OA). The aim of this review is to discuss the current knowledge on the use of commonly used biologic agents [i.e., anti-tumor necrosis factor alpha (anti-TNF alpha) and anti-nerve growth factor (anti-NGF)] for the management of OA...
December 5, 2016: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28063006/therapeutic-value-of-nerve-growth-factor-in-promoting-neural-stem-cell-survival-and-differentiation-and-protecting-against-neuronal-hearing-loss
#20
Zhao Han, Cong-Pin Wang, Ning Cong, Yu-Yan Gu, Rui Ma, Fang-Lu Chi
Nerve growth factor (NGF) is a neurotrophic factor that modulates survival and differentiation of neural stem cells (NSCs). We investigated the function of NGF in promoting growth and neuronal differentiation of NSCs isolated from mouse cochlear tissue, as well as its protective properties against gentamicin (GMC) ototoxicity. NSCs were isolated from the cochlea of mice and cultured in vitro. Effect of NGF on survival, neurosphere formation, and differentiation of the NSCs, as well as neurite outgrowth and neural excitability in the subsequent in vitro neuronal network, was examined...
January 7, 2017: Molecular and Cellular Biochemistry
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