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https://www.readbyqxmd.com/read/28722540/association-between-serum-uric-acid-level-and-hypertension-in-a-chinese-elderly-rural-population
#1
Lei Wu, Yao He, Bin Jiang, Miao Liu, Jianhua Wang, Di Zhang, Yiyan Wang, Jing Zeng
Previous studies have examined the association between elevated serum uric acid (SUA) level and hypertension; however, the association in the Chinese elderly is still uncertain. A cross-sectional study was performed in a rural district of Beijing. A total of 2,397 participants (967 men and 1,430 women) completed the survey. The SUA levels of participants were categorized into four levels using the quartiles (P25, P50, and P75) as cutoff values. Participant was diagnosed as hyperuricemia if the SUA level was ≥417 μmol/L (male) or ≥357 μmol/L (female)...
July 19, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28715232/long-term-recording-of-night-time-respiratory-symptoms-in-patients-with-stable-copd-ii-iv
#2
Johannes Krönig, Olaf Hildebrandt, Andreas Weissflog, Werner Cassel, Volker Gross, Keywan Sohrabi, Patrick Fischer, Ulrich Koehler
INTRODUCTION: Night-time respiratory symptoms have a considerable impact on sleep and life quality in patients with chronic obstructive pulmonary disease (COPD). Lack of awareness of night-time symptoms can lead to worsened COPD control. Automated long-term monitoring of respiratory symptoms with LEOSound enables assessment of nocturnal wheezing and cough. METHODS: In this observational study we investigated the prevalence and severity of cough and wheezing in patients with stable COPD [Global Initiative for Chronic Obstructive Lung Disease (GOLD) II-IV] disease for two consecutive nights with the LEOSound system...
July 17, 2017: COPD
https://www.readbyqxmd.com/read/28704293/analysis-of-neural-crest-cells-from-charcot-marie-tooth-disease-patients-demonstrates-disease-relevant-molecular-signature
#3
Fukiko Kitani-Morii, Keiko Imamura, Takayuki Kondo, Ryo Ohara, Takako Enami, Ran Shibukawa, Takuya Yamamoto, Kazuya Sekiguchi, Junya Toguchida, Toshiki Mizuno, Masanori Nakagawa, Haruhisa Inoue
Charcot-Marie-Tooth disease (CMT) is the most common inherited neuropathy. The majority of CMT is demyelinating type (demyelinating CMT) caused by Schwann cell involvement. Although a large number of genes responsible for demyelinating CMT have been found, the common molecular target of the pathophysiology caused by these different genes in demyelinating CMT is still unknown. We generated induced pluripotent stem cells (iPSCs) from healthy controls and patients with demyelinating CMT caused by duplication in peripheral myelin protein 22 kDa (PMP22) or point mutations in myelin protein zero (MPZ) or early growth response 2 (EGR2)...
July 12, 2017: Neuroreport
https://www.readbyqxmd.com/read/28703796/p75-ntr-antagonists-attenuate-photoreceptor-cell-loss-in-murine-models-of-retinitis-pigmentosa
#4
María Platón-Corchado, Pablo F Barcelona, Sean Jmaeff, Miguel Marchena, Alberto M Hernández-Pinto, Catalina Hernández-Sánchez, H Uri Saragovi, Enrique J de la Rosa
ProNGF signaling through p75(NTR) has been associated with neurodegenerative disorders. Retinitis pigmentosa (RP) comprises a group of inherited retinal dystrophies that causes progressive photoreceptor cell degeneration and death, at a rate dependent on the genetic mutation. There are more than 300 mutations causing RP, and this is a challenge to therapy. Our study was designed to explore a common mechanism for p75(NTR) in the progression of RP, and assess its potential value as a therapeutic target. The proNGF/p75(NTR) system is present in the dystrophic retina of the rd10 RP mouse model...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28701524/nanoparticles-increase-human-bronchial-epithelial-cell-susceptibility-to-respiratory-syncytial-virus-infection-via-nerve-growth-factor-induced-autophagy
#5
Sreeparna Chakraborty, Vincent Castranova, Miriam K Perez, Giovanni Piedimonte
Cytotoxic and neuroinflammatory effects of TiO2 nanoparticles (TiO2-NP) in human airways are mediated by nerve growth factor (NGF), which is also implicated in the pathophysiology of respiratory syncytial virus (RSV) infection. We tested the hypothesis that exposure to TiO2-NP results in increased susceptibility to RSV infection and exacerbation of airway inflammation via NGF-mediated induction of autophagy in lower respiratory tract cells. Human primary bronchial epithelial cells were exposed to TiO2-NP for 24 h prior to infection with recombinant red RSV (rrRSV)...
July 2017: Physiological Reports
https://www.readbyqxmd.com/read/28698670/urinary-extracellular-domain-of-neurotrophin-receptor-p75-as-a-biomarker-for-amyotrophic-lateral-sclerosis-in-a-chinese-cohort
#6
Rui Jia, Stephanie Shepheard, Jiaoting Jin, Fangfang Hu, Xing Zhao, Li Xue, Li Xiang, Huaguang Qi, Qiumin Qu, Feng Guo, Mary-Louise Rogers, Jingxia Dang
To comprehensively assess whether p75(ECD) in urine could be a candidate biomarker for ALS evaluation. Urine samples were collected from 101 ALS patients, 108 patients with other neurological disease (OND) and 97 healthy controls. 61 ALS patients were followed up with clinical data including ALSFRS-r every 6 to 12 months, 23 ALS patients died and 17 ALS patients lost touch during follow up period. Enzyme-linked immunoassay was employed to determine urine p75(ECD) concentration. The ALSFRS-r was employed to assess the severity of ALS...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28694020/transdifferentiation-of-brain-derived-neurotrophic-factor-bdnf-secreting-mesenchymal-stem-cells-significantly-enhance-bdnf-secretion-and-schwann-cell-marker-proteins
#7
Metzere Bierlein De la Rosa, Anup D Sharma, Surya K Mallapragada, Donald S Sakaguchi
The use of genetically modified mesenchymal stem cells (MSCs) is a rapidly growing area of research targeting delivery of therapeutic factors for neuro-repair. Cells can be programmed to hypersecrete various growth/trophic factors such as brain-derived neurotrophic factor (BDNF), glial cell line-derived neurotrophic factor (GDNF), and nerve growth factor (NGF) to promote regenerative neurite outgrowth. In addition to genetic modifications, MSCs can be subjected to transdifferentiation protocols to generate neural cell types to physically and biologically support nerve regeneration...
July 7, 2017: Journal of Bioscience and Bioengineering
https://www.readbyqxmd.com/read/28688339/brain-derived-neurotrophic-factor-signaling-plays-a-role-in-resilience-to-stress-promoted-by-isoquinoline-in-defeated-mice
#8
Ana Paula Pesarico, Suzan G Rosa, Franciele Martini, Tales A Goulart, Gilson Zeni, Cristina Wayne Nogueira
Certain stressful life events have been associated with the onset of depression. This study aims to investigate if 7-fluoro-1,3-diphenylisoquinoline-1-amine (FDPI) is effective against social avoidance induced by social defeat stress model in mice. Furthermore, it was investigated the effects of FDPI in the mouse prefrontal cortical plasticity-related proteins and some parameters of toxicity. Adult Swiss mice were subjected to social defeat stress for 10 days. Two protocols with FDPI were carried out: 1- FDPI (25 mg/kg, intragastric) was administered to mice 24 h after the last social defeat stress episode; 2- FDPI (1-25 mg/kg, intragastric) was administered to mice once a day for 10 days concomitant with the social defeat stress...
June 30, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28680965/a-brain-derived-neurotrophic-factor-based-p75-ntr-peptide-mimetic-ameliorates-experimental-autoimmune-neuritis-induced-axonal-pathology-and-demyelination
#9
David G Gonsalvez, Giang Tran, Jessica L Fletcher, Richard A Hughes, Suzanne Hodgkinson, Rhiannon J Wood, Sang Won Yoo, Mithraka De Silva, Wong W Agnes, Catriona McLean, Paul Kennedy, Trevor J Kilpatrick, Simon S Murray, Junhua Xiao
Axonal damage and demyelination are major determinants of disability in patients with peripheral demyelinating neuropathies. The neurotrophin family of growth factors are essential for the normal development and myelination of the peripheral nervous system (PNS), and as such are potential therapeutic candidates for ameliorating axonal and myelin damage. In particular, BDNF promotes peripheral nerve myelination via p75 neurotrophin receptor (p75(NTR)) receptors. Here, we investigated the therapeutic efficacy of a small structural mimetic of the region of BDNF that binds to p75(NTR) (cyclo-dPAKKR) in experimental autoimmune neuritis (EAN), an established animal model of peripheral demyelinating neuropathy...
May 2017: ENeuro
https://www.readbyqxmd.com/read/28654784/generation-and-characterization-of-a-human-oral-squamous-carcinoma-cell-line-scc-9-with-crispr-cas9-mediated-deletion-of-the-p75-neurotrophin-receptor
#10
Ping Huang, Dongdong Tong, Jing Sun, Qing Li, Fenghe Zhang
OBJECTIVE: To investigate the importance of the p75 neurotrophin receptor (p75(NTR)) in human tongue squamous carcinoma cells, we exploited the CRISPR/Cas9 technology to establish a p75(NTR)-knockout SCC-9 cell line and to explore the effect on biological functions. MATERIALS AND METHODS: The clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated endonuclease (Cas9) system was used to generate genomic deletion mutants of p75(NTR) in the tongue squamous carcinoma cell lines SCC-9...
June 24, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28654046/hypoxic-preconditioning-of-marrow-derived-progenitor-cells-as-a-source-for-the-generation-of-mature-schwann-cells
#11
Yat-Ping Tsui, Alan Kwan-Long Mung, Ying-Shing Chan, Daisy Kwok-Yan Shum, Graham Ka-Hon Shea
This manuscript describes a means to enrich for neural progenitors from the marrow stromal cell (MSC) population and thereafter to direct them to the mature Schwann cell fate. We subjected rat and human MSCs to transient hypoxic conditions (1% oxygen for 16 h) followed by expansion as neurospheres upon low-attachment substratum with epidermal growth factor (EGF)/basic fibroblast growth factor (bFGF) supplementation. Neurospheres were seeded onto poly-D-lysine/laminin-coated tissue culture plastic and cultured in a gliogenic cocktail containing β-Heregulin, bFGF, and platelet-derived growth factor (PDGF) to generate Schwann cell-like cells (SCLCs)...
June 14, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28640217/suboptimal-iodine-concentration-in-breastmilk-and-inadequate-iodine-intake-among-lactating-women-in-norway
#12
Sigrun Henjum, Anne Marie Lilleengen, Inger Aakre, Anna Dudareva, Elin Lovise Folven Gjengedal, Helle Margrete Meltzer, Anne Lise Brantsæter
Breastfed infants depend on sufficient maternal iodine intake for optimal growth and neurological development. Despite this, few studies have assessed iodine concentrations in human milk and there is currently no published data on iodine status among lactating women in Norway. The aim of this study was to assess iodine concentrations in breast milk (BMIC) in lactating women and estimate iodine intake. Five Mother and Child Health Centres in Oslo were randomly selected during 2016, and 175 lactating women between 2nd and 28th weeks postpartum participated...
June 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28636650/the-formation-of-lipid-droplets-favors-intracellular-mycobacterium-leprae-survival-in-sw-10-non-myelinating-schwann-cells
#13
Song-Hyo Jin, Sung-Kwan An, Seong-Beom Lee
Leprosy is a chronic infectious disease that is caused by the obligate intracellular pathogen Mycobacterium leprae (M.leprae), which is the leading cause of all non-traumatic peripheral neuropathies worldwide. Although both myelinating and non-myelinating Schwann cells are infected by M.leprae in patients with lepromatous leprosy, M.leprae preferentially invades the non-myelinating Schwann cells. However, the effect of M.leprae infection on non-myelinating Schwann cells has not been elucidated. Lipid droplets (LDs) are found in M...
June 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28633434/psip1-p75-promotes-tumorigenicity-in-breast-cancer-cells-by-promoting-the-transcription-of-cell-cycle-genes
#14
Deepak K Singh, Omid Gholamalamdari, Mahdieh Jadaliha, Xiao Ling Li, Yo-Chuen Lin, Yang Zhang, Shuomeng Guang, Seyedsasan Hashemikhabir, Saumya Tiwari, Yuelin J Zhu, Abid Khan, Anu Thomas, Arindam Chakraborty, Virgilia Macias, Andre K Balla, Rohit Bhargava, Sarath Chandra Janga, Jian Ma, Supriya G Prasanth, Ashish Lal, Kannanganattu V Prasanth
Breast cancer (BC) is a highly heterogeneous disease, both at the pathological and molecular level, and several chromatin-associated proteins play crucial roles in breast cancer initiation and progression. Here, we demonstrate the role of PSIP1 (PC4 and SF2 interacting protein)/p75 (LEDGF) in breast cancer progression. PSIP1/p75, previously identified as a chromatin-adaptor protein, is found to be upregulated in basal-like/triple negative breast cancer (TNBC) patient samples and cell lines. Immunohistochemistry in tissue arrays showed elevated levels of PSIP1 in metastatic invasive ductal carcinoma...
June 17, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28610923/l368f-v408f-double-mutant-of-ibd-of-ledgf-p75-retains-interaction-with-m178i-mutant-of-hiv-1-integrase
#15
Anu George, Nidhanapati K Raghavendra
Lens-epithelium-derived-growth factor (LEDGF/p75) is an essential host protein for integration of HIV-1 DNA into host genome. Earlier alanine scanning mutational analysis has revealed that residues I365, D366 and F406 in the integrase binding domain (IBD) of p75 are critical for interaction with HIV-1 integrase (IN), while K364, V408 have intermediate effect and residues N367, L368, R405, K407 show wild type binding with IN. To gain insight into contribution of side chains of L368 and V408 that are adjacent to critical residues I365 and F406, respectively, site directed mutation of these residues to Ile/Leu, Met and Phe has been performed and characterized in this study...
August 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28606078/how-to-select-a-proper-early-warning-threshold-to-detect-infectious-disease-outbreaks-based-on-the-china-infectious-disease-automated-alert-and-response-system-cidars
#16
Ruiping Wang, Yonggen Jiang, Engelgau Michael, Genming Zhao
BACKGROUND: China Centre for Diseases Control and Prevention (CDC) developed the China Infectious Disease Automated Alert and Response System (CIDARS) in 2005. The CIDARS was used to strengthen infectious disease surveillance and aid in the early warning of outbreak. The CIDARS has been integrated into the routine outbreak monitoring efforts of the CDC at all levels in China. Early warning threshold is crucial for outbreak detection in the CIDARS, but CDCs at all level are currently using thresholds recommended by the China CDC, and these recommended thresholds have recognized limitations...
June 12, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28596120/myelin-induced-inhibition-in-a-spiral-ganglion-organ-culture-approaching-a-natural-environment-in-vitro
#17
Benedikt Kramer, Anke Tropitzsch, Marcus Müller, Hubert Löwenheim
The performance of a cochlear implant depends on the defined interaction between afferent neurons of the spiral ganglion and the inserted electrode. Neurite outgrowth can be induced by neurotrophins such as brain-derived neurotrophic factor (BDNF) via tropomyosin kinase receptor B (TrkB). However, neurotrophin signaling through the p75 neurotrophin receptor (p75) inhibits neurite outgrowth in the presence of myelin. Organotypic cultures derived from postnatal (P3-5) mice were used to study myelin-induced inhibition in the cochlear spiral ganglion...
June 14, 2017: Neuroscience
https://www.readbyqxmd.com/read/28595321/mitochondrial-deficits-and-abnormal-mitochondrial-retrograde-axonal-transport-play-a-role-in-the-pathogenesis-of-mutant-hsp27-induced-charcot-marie-tooth-disease
#18
Bernadett Kalmar, Amy Innes, Klaus Wanisch, Alicia Koyen Kolaszynska, Amelie Pandraud, Gavin Kelly, Andrey Y Abramov, Mary M Reilly, Giampietro Schiavo, Linda Greensmith
Mutations in the small heat shock protein Hsp27, encoded by the HSPB1 gene, have been shown to cause Charcot Marie Tooth Disease type 2 (CMT-2) or distal hereditary motor neuropathy (dHMN). Protein aggregation and axonal transport deficits have been implicated in the disease. In this study, we conducted analysis of bidirectional movements of mitochondria in primary motor neuron axons expressing wild type and mutant Hsp27. We found significantly slower retrograde transport of mitochondria in Ser135Phe, Pro39Leu and Arg140Gly mutant Hsp27 expressing motor neurons than in wild type Hsp27 neurons, although anterograde movement velocities remained normal...
June 8, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28587660/recommendations-for-cerebrospinal-fluid-collection-for-the-analysis-by-elisa-of-neurogranin-trunc-p75-%C3%AE-synuclein-and-total-tau-in-combination-with-a%C3%AE-1-42-a%C3%AE-1-40
#19
Hugo Vanderstichele, Leentje Demeyer, Shorena Janelidze, Els Coart, Erik Stoops, Kimberley Mauroo, Victor Herbst, Cindy François, Oskar Hansson
BACKGROUND: The pathophysiology of neurodegeneration is complex. Its diagnosis requires an early identification of sequential changes in several hallmarks in the brains of affected subjects. The presence of brain pathology can be visualized in the cerebrospinal fluid (CSF) by protein profiling. It is clear that the field of Alzheimer's disease (AD) will benefit from an integration of algorithms including CSF concentrations of individual proteins, especially as an aid in clinical decision-making or to improve patient enrolment in clinical trials...
June 6, 2017: Alzheimer's Research & Therapy
https://www.readbyqxmd.com/read/28582696/structural-basis-for-the-potent-inhibition-of-the-hiv-integrase-ledgf-p75-protein-protein-interaction
#20
Sergio R Ribone, Mario A Quevedo
Integrase (IN) constitutes one of the key enzymes involved in the lifecycle of the Human Immunodeficiency Virus (HIV), the etiological agent of AIDS. The biological role of IN strongly depends on the recognition and binding of cellular cofactors belonging to the infected host cell. Thus, the inhibition of the protein-protein interaction (PPI) between IN and cellular cofactors has been envisioned as a promising therapeutic target. In the present work we explore a structure-activity relationship for a set of 14 compounds reported as inhibitors of the PPI between IN and the lens epithelium-derived growth factor (LEDGF/p75)...
May 26, 2017: Journal of Molecular Graphics & Modelling
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