keyword
MENU ▼
Read by QxMD icon Read
search

Sh

keyword
https://www.readbyqxmd.com/read/28719808/activated-neuro-oxidative-and-neuro-nitrosative-pathways-at-the-end-of-term-are-associated-with-inflammation-and-physio-somatic-and-depression-symptoms-while-predicting-outcome-characteristics-in-mother-and-baby
#1
Chutima Roomruangwong, Decio Sabbatini Barbosa, Andressa Keiko Matsumoto, André de Souza Nogueira, Buranee Kanchanatawan, Sunee Sirivichayakul, André F Carvalho, Sebastien Duleu, Michel Geffard, Estefania Gastaldello Moreira, Michael Maes
OBJECTIVES: To examine oxidative & nitrosative stress (O&NS) biomarkers at the end of term in relation to perinatal affective symptoms, neuro-immune biomarkers and pregnancy-related outcome variables. METHODS: We measured plasma advanced oxidation protein products (AOPP), nitric oxide metabolites (NOx), total radical trapping antioxidant parameter (TRAP), -sulfhydryl (-SH), peroxides (LOOH) and paraoxonase (PON)1 activity in pregnant women with and without prenatal depression and non-pregnant controls...
July 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28719344/protective-effect-of-edaravone-against-a%C3%AE-25-35-induced-mitochondrial-oxidative-damage-in-sh-sy5y-cells
#2
G-L Zhang, L Zhang, Y-Y Guo, Z-L Ma, H-Y Wang, T Li, J Liu, Y Du, L Yao, T-T Li, J-M Du
Amyloid-β (Aβ)-induced oxidative stress plays an important role in the pathogenesis of Alzheimer's disease (AD). Recent studies show that Aβ accumulation may lead to mitochondrial oxidative damage. In the present study, we investigated the protective effect of edaravone on mitochondrial damage in SH-SY5Y cells treated with Aβ25-35. SH-SY5Y cells were pre-treated with 20, 40 or 80 μM edaravone before treatment with 25 μM Aβ25-35. After 24h cell culture, cellular apoptosis, intracellular reactive oxygen species (ROS), mitochondrial membrane potential (ΔΨm), ATP levels and mitochondrial morphology were evaluated...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28716122/systematic-evaluation-of-oligodeoxynucleotide-binding-and-hybridization-to-modified-multi-walled-carbon-nanotubes
#3
Anika Kaufmann, Silke Hampel, Christiane Rieger, David Kunhardt, Darja Schendel, Susanne Füssel, Bernd Schwenzer, Kati Erdmann
BACKGROUND: In addition to conventional chemotherapeutics, nucleic acid-based therapeutics like antisense oligodeoxynucleotides (AS-ODN) represent a novel approach for the treatment of bladder cancer (BCa). An efficient delivery of AS-ODN to the urothelium and then into cancer cells might be achieved by the local application of multi-walled carbon nanotubes (MWCNT). In the present study, pristine MWCNT and MWCNT functionalized with hydrophilic moieties were synthesized and then investigated regarding their physicochemical characteristics, dispersibility, biocompatibility, cellular uptake and mucoadhesive properties...
July 17, 2017: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/28715690/a-dft-study-on-surface-enhanced-raman-spectroscopy-of-aromatic-dithiol-derivatives-adsorbed-on-gold-nanojunctions
#4
Tingting You, Xiufeng Lang, Anping Huang, Penggang Yin
A computational study on aromatic dithiol derivatives (HS-Ar-X-Ar-SH, X=O, S, Se, NH, CH2, NN, CHCH, CC) interacting with gold cluster(s) was presented to investigate the chemical enhancement mechanism related to surface-enhanced Raman spectroscopy (SERS) for molecular junctions. Density functional theory (DFT) were performed on derivatives molecules as well as their single-end-linked (SEL) or double-end-linked (DEL) complexes for geometric, spectra, electronic and excitation properties, leading to discussions on dominant factor during SERS process...
July 12, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28715613/isolation-and-characterization-of-canine-placenta-derived-mesenchymal-stromal-cells-for-the-treatment-of-neurological-disorders-in-dogs
#5
Connor Long, Lee Lankford, Priyadarsini Kumar, Robert Grahn, Dori L Borjesson, Diana Farmer, Aijun Wang
Spinal cord injury (SCI) is a devastating disorder that affects humans and dogs. The prognosis of SCI depends on the severity of the injury and can include varying levels of motor and sensory deficits including devastating paraplegia and quadriplegia. Placental mesenchymal stromal cells (PMSCs) have been shown to improve wound healing and possess neuroprotective and immunomodulatory capabilities, but have not yet been clinically tested for the treatment of SCI. This study established a protocol to isolate fetal PMSCs from canine placentas and characterized their paracrine secretion profile and ability to stimulate neurons in vitro to assess their potential as a treatment option for neurological disorders in dogs...
July 17, 2017: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28715508/biofilm-extracellular-polysaccharides-degradation-during-starvation-and-enamel-demineralization
#6
Bárbara Emanoele Costa Oliveira, Jaime Aparecido Cury, Antônio Pedro Ricomini Filho
This study was conducted to evaluate if extracellular polysaccharides (EPS) are used by Streptococcus mutans (Sm) biofilm during night starvation, contributing to enamel demineralization increasing occurred during daily sugar exposure. Sm biofilms were formed during 5 days on bovine enamel slabs of known surface hardness (SH). The biofilms were exposed to sucrose 10% or glucose + fructose 10.5% (carbohydrates that differ on EPS formation), 8x/day but were maintained in starvation during the night. Biofilm samples were harvested during two moments, on the end of the 4th day and in the morning of the 5th day, conditions of sugar abundance and starvation, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28714847/modulation-of-the-transcription-factor-nf-%C3%AE%C2%BAb-in-antigen-presenting-cells-by-bovine-respiratory-syncytial-virus-small-hydrophobic-protein
#7
Nicola Pollock, Geraldine Taylor, Fatoumatta Jobe, Efrain Guzman
Bovine respiratory syncytial virus (BRSV) is an important cause of respiratory disease in young cattle and is closely related to human RSV (HRSV), which causes severe respiratory disease in infants and the elderly. The RSV genome encodes a small hydrophobic (SH) protein with viroporin activity. Previous studies have shown that recombinant BRSV lacking the SH gene (rBRSVΔSH) is attenuated in the lungs, but not in the upper respiratory tract, of calves and mucosal vaccination with rBRSVΔSH induced long-lasting protective immunity...
July 17, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28714389/a-peptide-based-pro-drug-ameliorates-amyloid-%C3%AE-induced-neuronal-apoptosis-in-in-vitro-sh-sy5y-cells
#8
Sourav Kumar, Ashim Paul, Sourav Kalita, Awanish Kumar, Saurabh Srivastav, Somoday Hazra, Anup Kumar Ghosh, Bhubaneswar Mandal, Amal Chandra Mondal
BACKGROUND: Alzheimer's disease (AD), a common protein misfolding neurodegenerative disorder, is one of the most common forms of dementia. Amyloid precursor protein (APP) derived amyloid-β (Aβ) proteins accumulated into interneuronal spaces and plays a crucial role in the disease progression and its pathology. The aggregated Aβ exerts its neurotoxic effects by inducing apoptosis and oxidative damage in neuronal cells. OBJECTIVES: We have investigated the effects of a synthesized Pro-Drug peptide (PDp) on Aβ1-40 induced cytotoxicity in human neuroblastoma SH-SY5Y cells, represents one of the most effective strategies in combating human AD...
July 13, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28714346/neuroprotective-effects-of-cassia-tora-against-paraquat-induced-neurodegeneration-relevance-for-parkinson-s-disease
#9
Sunil K Ravi, Ramesh B Narasingappa, Chandrashekar G Joshi, Talakatta K Girish, Bruno Vincent
The aim of the present study was to determine whether Cassia tora extracts could reverse the oxidative stress-induced neurodegeneration in a Parkinson's disease in vitro model. The leaves were treated with ethyl acetate (CtEA) or methanol (CtME). The extracts were first analysed by HPLC for their phenolic content and then tested for their neuroprotective effects in human SK-N-SH neuroblastoma cells. Cells were pre-treated with various concentrations of extracts followed by incubation with paraquat (14 μM)...
July 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28714326/spinal-cord-ischemia-reperfusion-causes-damage-of-neurocyte-by-inhibiting-rap2c
#10
Yong Qiao, Changliang Peng, Ji Li, Dongjin Wu, Xiuwen Wang
OBJECTIVE: To explore the mechanism of RAP2C participating in spinal cord ischemia-reperfusion injury (SCII). MATERIALS AND METHODS: mRNA expressions of miR-204 and RAP2C were measured by qRT-PCR. Protein level of RAP2C was detected by Western blot. Cell apoptosis in AGE1.HN and PC12 cells was detected by Annexin V/propidium iodide assay. The effect of miR-204 knockdown or overexpression on RAP2C expression was observed by luciferase assay. RESULTS: In this experimental research, RAP2C expression in SCII group was lower than control group, while miR-204 expression was higher...
July 16, 2017: Neurological Research
https://www.readbyqxmd.com/read/28713917/stim1-silencing-inhibits-the-migration-and-invasion-of-a549-cells
#11
Yadong Wang, Haiyu Wang, Teng Pan, Li Li, Jiangmin Li, Haiyan Yang
The present study aimed to explore the effects of stromal interaction molecule 1 (STIM1) knockdown on the migration, invasion and metastasis of A549 cells in vitro and in vivo. Western blotting and immunohistochemistry were used to detect protein expression levels. Wound healing and Transwell invasion assays were used to assess the migratory and invasive abilities of A549 cells transfected with STIM1‑specific short hairpin (sh)RNA (shSTIM1). In addition, a tail vein metastatic assay was performed. The results demonstrated that the frequency of STIM1 high‑expression was significantly increased in metastatic lung cancer tissues (72...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713893/interleukin%C3%A2-6-rna-knockdown-ameliorates-acute-lung-injury-induced-by-intestinal-ischemia-reperfusion-in-rats-by-upregulating-interleukin%C3%A2-10-expression
#12
Bing Yuan, Liu-Lin Xiong, Mu-Dong Wen, Piao Zhang, Hong-Yu Ma, Ting-Hua Wang, Yun-Hui Zhang
Acute lung injury (ALI) is a common complication following intestinal ischemia/reperfusion (II/R) injury and contributes to the associated high mortality rate. However, the underlying mechanism is poorly understood and treatments are limited. RNA interference (RNAi) has been demonstrated to provide a promising disease treatment strategy both in vitro and in vivo. Therefore, the present study aimed to test whether blocking the proinflammatory cytokine IL‑6 by RNAi may protect the lungs from remote organ injury following II/R, and to investigate the potential underlying mechanisms...
July 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28711909/h2o2-attenuates-igf-1r-tyrosine-phosphorylation-and-its-survival-signaling-properties-in-neuronal-cells-via-nr2b-containing-nmda-receptor
#13
Zhiwen Zeng, Dejun Wang, Uma Gaur, Liao Rifang, Haitao Wang, Wenhua Zheng
Impairment of insulin-like growth factor I (IGF-I) signaling plays an important role in the development of neurodegeneration. In the present study, we investigated the effect of H2O2 on the survival signaling of IGF-1 and its underlying mechanisms in human neuronal cells SH-SY5Y. Our results showed that IGF-1 promoted cell survival and stimulated phosphorylation of IGF-1R as well as its downstream targets like AKT and ERK1/2 in these cells. Meanwhile, these effects of IGF-1 were abolished by H2O2 at 200μM concentration which did not cause any significant toxicity to cells itself in our experiments...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28711702/development-of-a-series-of-novel-4-anlinoquinazoline-derivatives-possessing-quinazoline-skeleton-design-synthesis-egfr-kinase-inhibitory-efficacy-and-evaluation-of-anticancer-activities-in%C3%A2-vitro
#14
Jin Chang, Hongyu Ren, Mingxia Zhao, Yan Chong, Wenwen Zhao, Yong He, Yunling Zhao, Huabei Zhang, Chuanmin Qi
4-anilinoquinazoline-based derivatives represent an attractive scaffold for small molecular EGFR-TKIs in the field of medicinal chemistry. A series of novel heterocyclic substituted derivatives have been designed, synthesized and evaluated their antitumor bioactivities as potential EGFR-TKIs. Most of the new compounds exhibited certain efficient inhibition potency for proliferation of a panel of five human cancer cells with IC50 values at the low micromolar level, and some of them possessed good broad-spectrum inhibition activities, compared to Gefitinib...
July 4, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28711560/interaction-of-carbapenems-and-%C3%AE-lactamase-inhibitors-towards-ctx-m-15-and-ctx-m-15-g238c-mutant
#15
Alessia Sabatini, Fabrizia Brisdelli, Giuseppe Celenza, Francesca Marcoccia, Martina Colapietro, María M Tavío, Alessandra Piccirilli, Gianfranco Amicosante, Mariagrazia Perilli
OBJECTIVES: The aim of this study was to evaluate the role of residue 238 in CTX-M-15 and CTX-M-15(G238C) mutant with respect to carbapenems and various β-lactamase inhibitors. METHODS: A CTX-M-15(G238C) laboratory mutant was generated by site-directed mutagenesis from CTX-M-15 enzyme by replacing glycine 238 with cysteine. Thiol titration and p-chloromercuribenzoate (PCMB) inactivation assays were used to ascertain the presence of a disulfide bridge in the active site of CTX-M-15(G238C)...
July 12, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28710704/systemic-analysis-of-mirnas-in-pd-stress-condition-mir-5701-modulates-mitochondrial-lysosomal-cross-talk-to-regulate-neuronal-death
#16
Paresh Prajapati, Lakshmi Sripada, Kritarth Singh, Milton Roy, Khyati Bhatelia, Pooja Dalwadi, Rajesh Singh
Parkinson's disease (PD) is complex neurological disorder and is prevalent in the elderly population. This is primarily due to loss of dopaminergic neurons in the substantia nigra pars compacta (SNc) region of the brain. The modulators of the selective loss of dopaminergic neurons in PD are still not well understood. The small non-coding RNAs specifically miRNAs fine-tune the protein levels by post-transcriptional gene regulation. The role of miRNAs in PD pathogenesis is still not well characterized. In the current study, we identified the miRNA expression pattern in 6-OHDA-induced PD stress condition in SH-SY5Y, dopaminergic neuronal cell line...
July 14, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28710465/effects-of-the-mode-of-re-socialization-after-juvenile-social-isolation-on-medial-prefrontal-cortex-myelination-and-function
#17
Manabu Makinodan, Daisuke Ikawa, Kazuhiko Yamamuro, Yasunori Yamashita, Michihiro Toritsuka, Sohei Kimoto, Takahira Yamauchi, Kazuki Okumura, Takashi Komori, Shin-Ichi Fukami, Hiroki Yoshino, Shigenobu Kanba, Akio Wanaka, Toshifumi Kishimoto
Social isolation is an important factor in the development of psychiatric disorders. It is necessary to develop an effective psychological treatment, such as cognitive rehabilitation, for children who have already suffered from social isolation, such as neglect and social rejection. We used socially isolated mice to validate whether elaborate re-socialization after juvenile social isolation can restore hypomyelination in the medial prefrontal cortex (mPFC) and the attendant functions manifested in socially isolated mice...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710022/taxifolin-reduces-the-cholesterol-oxidation-product-induced-neuronal-apoptosis-by-suppressing-the-akt-and-nf-%C3%AE%C2%BAb-activation-mediated-cell-death
#18
Arum Kim, Yoon Jeong Nam, Chung Soo Lee
The taxifolin effect on the cholesterol oxidation product-induced neuronal apoptosis was investigated using differentiated PC12 cells and human neuroblastoma SH-SY5Y cells. 7-ketocholesterol induced phosphorylation of Akt, and increase in the levels of cytosolic and nuclear NF-κB p65, cytosolic NF-κB p50 and cytosolic phosphorylated-IκB-α in PC12 cells. The cholesterol oxidation products also induced a decrease in the levels of Bid and Bcl-2, increase in the levels of p53 and Bax, loss of the mitochondrial transmembrane potential, release of cytochrome c, activation of caspases (-8, -9 and -3), production of reactive oxygen species, depletion of GSH and cell death in both cell lines...
July 11, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28709872/s-nitrosylation-of-the-igf-1-receptor-disrupts-the-cell-proliferative-action-of-igf-1
#19
Kazushi Okada, Bao-Ting Zhu
The insulin-like growth factor 1 receptor (IGF-1R) is a disulfide-linked heterotetramer containing two α-subunits and two β-subunits. Earlier studies demonstrate that nitric oxide (NO) can adversely affect IGF-1 action in the central nervous system. It is known that NO can induce S-nitrosylation of the cysteine residues in proteins, thereby partly contributing to the regulation of protein function. In the present study, we sought to determine whether S-nitrosylation of the cysteine residues in IGF-1R is an important post-translational modification that regulates its response to IGF-1...
July 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28709827/20-r-ginsenoside-rg3-protects-sh-sy5y-cells-against-apoptosis-induced-by-oxygen-and-glucose-deprivation-reperfusion
#20
Bo He, Peng Chen, Yu Xie, Shude Li, Xiaochao Zhang, Renhua Yang, Guihua Wang, Zhiqiang Shen, Hui Wang
As shown in our previous studies, 20(R)-ginsenoside Rg3 [20(R)-Rg3] exerts a neuroprotective effect on a rat model of transient focal cerebral ischemia, and the mechanism through which it decreases the mRNA expression of calpain I and caspase-3 has been delineated. However, researchers do not know whether 20(R)-Rg3 exhibits a neuroprotective effect following oxygen-glucose deprivation and reperfusion (OGD/R) injury in vitro. In the present study, 20(R)-Rg3 increased cell viability, decreased the LDH leakage rate, and inhibited the apoptosis rate in a concentration-dependent manner...
June 19, 2017: Bioorganic & Medicinal Chemistry Letters
keyword
keyword
108438
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"