keyword
MENU ▼
Read by QxMD icon Read
search

level of stress

keyword
https://www.readbyqxmd.com/read/28454435/15-deoxy-%C3%AE-12-14-prostaglandin-j2-inhibits-migration-of-human-thyroid-carcinoma-cells-by-disrupting-focal-adhesion-complex-and-adherens-junction
#1
Ya-Chieh Wu, Yun-Ting Jhao, Yu-Chen Cheng, Ying Chen
Metastasis is frequently observed in human follicular thyroid carcinoma. The present study investigated the peroxisome proliferator-activated receptor γ agonist, 15-deoxy-Δ(12,14)-prostaglandin J(2) (15d-PGJ2), and its effect on the migration of CGTH W-2 human thyroid carcinoma cells. 15d-PGJ2 decreased the survival rate of CGTH W-2 cells in a dose-dependent manner. The Transwell migration assay demonstrated that 15d-PGJ2 reduced the migration rate of CGTH W-2 cells by 35% following treatment with 30 µM 15d-PGJ2 compared with control cells...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454351/the-role-of-quercetin-and-vitamin-c-in-nrf2-dependent-oxidative-stress-production-in-breast-cancer-cells
#2
Zohreh Mostafavi-Pour, Fatemeh Ramezani, Fatemeh Keshavarzi, Nasser Samadi
The balance between the production and elimination of reactive oxygen species (ROS) is essential in determining whether cells survive or undergo apoptosis. Nuclear factor erythroid 2-related factor 2 (Nrf2) may act as a sensor for electrophilic stress, thus regulating the intracellular antioxidant response. The present study investigated the role of vitamin C (VC) and quercetin (Q) in the induction of Nrf2-mediated oxidative stress in cancer cells. An MTT assay was conducted to examine the anti-proliferative effects of VC and Q...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454321/the-loss-of-casp4-expression-is-associated-with-poor-prognosis-in-esophageal-squamous-cell-carcinoma
#3
Misako Shibamoto, Hidenari Hirata, Hidetoshi Eguchi, Genta Sawada, Noritaka Sakai, Yoshiaki Kajiyama, Koshi Mimori
Esophageal squamous cell carcinoma (ESCC) has high biological malignant potential among the various digestive tract cancers and is associated with a poor prognosis. To identify novel genes involved in tumor progression, the present study analyzed the genetic and transcriptional alterations in two clinical cohorts, totaling 157 cases of ESCC (78 cases from the discovery set and 79 cases from the validation set). From the discovery set, gene expression and copy number profiles were analyzed using expression arrays and array-comparative genomic hybridization, respectively...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454274/role-of-endoplasmic-reticulum-stress-on-cisplatin-resistance-in-ovarian-carcinoma
#4
Jing Tian, Rong Liu, Quanxin Qu
Endoplasmic reticulum (ER) is an essential site of cellular homeostasis regulation. ER stress (ERS) may induce autophagy in tumor cells that escape from apoptosis. The present study examined the effects and mechanism of ERS on cisplatin (DDP) sensitivity in ovarian carcinoma. SKOV3 tumor cells treated with Saquinavir were subjected to western blot and reverse transcription-quantitative polymerase chain reaction analysis to determine protein and messenger RNA (mRNA) expression levels of mechanistic target of rapamycin (mTOR) and Beclin 1...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454221/expression-of-inositol-requiring-enzyme-1%C3%AE-is-downregulated-in-colorectal-cancer
#5
Yalin Jiang, Yunfeng Zhou, Yufeng Zheng, Hong Guo, Lei Gao, Pan Chen, Dandan Feng, Ran Qi, Xiaozhen Li, Yongchao Chang, Fong-Fong Chu, Qiang Gao
The endoplasmic reticulum stress inositol-requiring enzyme (IRE) 1α/X-box binding protein (XBP) 1 signaling pathway is involved in the tumorigenesis of breast and prostate cancer. Mucin 2 (MUC2) protects colon tissues from the formation of tumors. In human colorectal cancer (CRC) the role of IRE1α, and its analogue, IRE1β, has yet to be elucidated. In the present study, the expression levels of IRE1α, IRE1β, un-spliced XBP1u, spliced XBP1s and MUC2 in surgically resected cancerous and adjacent non-cancerous tissues from patients with CRC were investigated...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454193/-mental-stress-of-professionals-in-residential-care-for-children-and-adolescents
#6
Thea Rau, Jeannine Ohlert, Corinna Seidler, Jörg M Fegert, Marc Allroggen
An increasingly important issue is the mental strain of professionals in residential care for children and adolescents. However, only few studies investigate mental strain and overload of professionals in an educational context in general and even less in youth welfare institutions. The goal of this study was to examine mental strain experiences of professionals with the "Perceived Stress Questionnaire" (PSQ) in youth welfare institutions, as well as to investigate the relationship between age, duration of employment in this work environment and gender of participants...
April 28, 2017: Psychotherapie, Psychosomatik, Medizinische Psychologie
https://www.readbyqxmd.com/read/28454091/heterogeneous-nuclear-ribonucleoprotein-hnrnp-l-promotes-dna-damage-induced-cell-apoptosis-by-enhancing-the-translation-of-p53
#7
Ji-Young Seo, Do-Yeon Kim, Seong-Hoon Kim, Hyo-Jin Kim, Hye Guk Ryu, Juhyun Lee, Kyung-Ha Lee, Kyong-Tai Kim
The tumor suppressor p53 is an essential gene in the induction of cell cycle arrest, DNA repair, and apoptosis. p53 protein is induced under cellular stress, blocking cell cycle progression and inducing DNA repair. Under DNA damage conditions, it has been reported that post-transcriptional regulation of p53 mRNA contributes to the increase in p53 protein level. Here we demonstrate that heterogeneous nuclear ribonucleoprotein (hnRNP) L enhances p53 mRNA translation. We found that hnRNP L is increased and binds to the 5'UTR of p53 mRNA in response to DNA damage...
April 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28454041/long-term-intake-of-a-high-protein-diet-increases-liver-triacylglycerol-deposition-pathways-and-hepatic-signs-of-injury-in-rats
#8
Rubén Díaz-Rúa, Jaap Keijer, Andreu Palou, Evert M van Schothorst, Paula Oliver
Intake of high-protein (HP) diets has increased over the last years, mainly due to their popularity for body weight control. Liver is the main organ handling ingested macronutrients and it is associated with the beginning of different pathologies. We aimed to deepen our knowledge on molecular pathways affected by long-term intake of an HP diet. We performed a transcriptome analysis on liver of rats chronically fed with a casein-rich HP diet and analyzed molecular parameters related to liver injury. Chronic increase in the dietary protein/carbohydrate ratio up-regulated processes related with amino acid uptake/metabolism and lipid synthesis, promoting a molecular environment indicative of hepatic triacylglycerol (TG) deposition...
April 19, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28453571/effect-of-shenmai-injection-on-preventing-the-development-of-nitroglycerin-induced-tolerance-in-rats
#9
Qian Zhou, Yan Sun, Wangxiao Tan, Xiao Liu, Yuchen Qian, Xianghui Ma, Ting Wang, Xiaoying Wang, Xiumei Gao
Long-term nitroglycerin (NTG) therapy causes tolerance to its effects attributing to increased oxidative stress and endothelial dysfunction. Shenmai injection (SMI), which is clinically used to treat cardiovascular diseases, consists of two herbal medicines, Ginseng Rubra and Ophiopogonjaponicas, and is reported to have antioxidant effects. The present study was designed to investigate the potential preventive effects of Shenmai injection on development of nitroglycerin-induced tolerance. The present study involves both in vivo and in vitro experiments to investigate nitroglycerin-induced tolerance...
2017: PloS One
https://www.readbyqxmd.com/read/28453536/rtfa-controls-development-secondary-metabolism-and-virulence-in-aspergillus-fumigatus
#10
Ryan R Myers, Timothy D Smith, Sherine F Elsawa, Olivier Puel, Souraia Tadrist, Ana M Calvo
Invasive aspergillosis by Aspergillus fumigatus is a leading cause of infection-related mortality in immune-compromised patients. In order to discover potential genetic targets to control A. fumigatus infections we characterized rtfA, a gene encoding a putative RNA polymerase II transcription elongation factor-like protein. Our recent work has shown that the rtfA ortholog in the model fungus Aspergillus nidulans regulates morphogenesis and secondary metabolism. The present study on the opportunistic pathogen A...
2017: PloS One
https://www.readbyqxmd.com/read/28453515/reliable-reference-genes-for-normalization-of-gene-expression-data-in-tea-plants-camellia-sinensis-exposed-to-metal-stresses
#11
Ming-Le Wang, Qing-Hui Li, Hua-Hong Xin, Xuan Chen, Xu-Jun Zhu, Xing-Hui Li
Tea plants [Camellia sinensis (L.) O. Kuntze] are an important leaf-type crop that are widely used for the production of non-alcoholic beverages in the world. Exposure to excessive amounts of heavy metals adversely affects the quality and yield of tea leaves. To analyze the molecular responses of tea plants to heavy metals, a reliable quantification of gene expression is important and of major importance herein is the normalization of the measured expression levels for the target genes. Ideally, stably expressed reference genes should be evaluated in all experimental systems...
2017: PloS One
https://www.readbyqxmd.com/read/28453460/endoplasmic-reticulum-stress-regulates-proliferation-migration-and-invasion-of-human-ovarian-cancer-skov3-cells-through-pi3k-akt-mtor-signaling-pathway
#12
Na Yang, Yan-Jun Qu, Yan Cheng, Tian Liang, Mei-Na Zhang, Dan Zhang, Li-Na Dong, Xiao-Wei Wang, Guang-Mei Zhang
OBJECTIVE: The study is to explore the role of tunicamycin-induced endoplasmic reticulum stress (ERS) in human ovarian cancer (OC) SKOV3 cells proliferation, migration and invasion by modulating the activity of PI3K/AKT/mTOR pathway. METHODS: The collected human OC SKOV3 cells were randomly separated into three groups: The control group, the Tun group (treated with tunicamycin to induce ERS) and the CHOP-si group (transfected with CHOP-siRNA before tunicamycin treatment)...
April 21, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28453394/expression-of-mir-23a-by-apoptotic-regulators-in-human-cancer-a-review
#13
Rabih Roufayel, Seifedine Kadry
MicroRNAs play fundamental roles in mammalian development, differentiation and cellular homeostasis by regulating essential processes such as proliferation, migration, metabolism, migration and cell death. These small non-coding RNAs are also responsible in RNA silencing, and in many developmental and pathological processes. Not surprisingly, miR-23a misexpression contributes to numerous diseases including cancer where certain miRNA genes have been classified as either oncogenes or tumor suppressor genes. Since a single microRNA is capable of targeting a large number of mRNA sequences, de-regulated miRNA expression has the ability to alter various transcripts and activate a wide range of cancer-related pathways...
April 28, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28453278/hydrophobization-of-silica-nanoparticles-in-water-nanostructure-and-response-to-drying-stress
#14
Solenn Moro, Caroline Parneix, Bernard Cabane, Nicolas Sanson, Jean-Baptiste d'Espinose de Lacaillerie
In this paper, we investigated the impact of surface hydrophobization on the structure of aqueous silica suspension and how this structure resists drying stress. To achieve this, hydrophilic silica particles were hydrophobized directly in water using different organosilane precursors, with a precise control of the grafting density. The resulting nanostructure was precisely analyzed by a combination of small angle X-ray scattering (SAXS) and cryo-microscopy (cryo-TEM). Then, the suspension was progressively concentrated by drying to follow by SAXS the evolution of the nanostructures as a function of the grafting density...
April 28, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28449528/the-link-between-tuberculosis-and-body-mass-index
#15
EDITORIAL
Aaron R Casha, Marco Scarci
The evidence behind the strong correlation between reactivation of tuberculosis (TB) and low body mass index (BMI) was reviewed. This strong association between TB and BMI occurred only with pulmonary TB and not extra-pulmonary TB, indicating that a low-BMI body build may in some way predispose to TB reactivation in the lungs. A possible explanation may be the congenital apical lung bullae that occur in 15% of the population and are likely to enlarge in young low-BMI males since biomechanical modeling of pleural stress has shown a massive 40x increase in apical pleural stress in low antero-posterior (AP) diameter chests associated with a low-BMI build...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449392/osmotic-stress-decreases-complexity-underlying-the-electrophysiological-dynamic-in-soybean
#16
G F R Saraiva, A S Ferreira, G M Souza
Research rationale: Studies on plant electrophysiology are mostly focused on specific traits of single cells. Inspired by the complexity of the signaling network in plants and by analogies with neurons in human brains, we have sought for evidences of high complexity in the electrical dynamics of plant signaling and a likely relation with environmental cues. Central methods: An EEG-like standard protocol was adopted for high-resolution measurements of the electrical signal in Glycine max seedlings. The signals were continuously recorded in the same plants before and after the osmotic stimuli with a -2 MPa mannitol solution...
April 27, 2017: Plant Biology
https://www.readbyqxmd.com/read/28449242/resting-sympathetic-arousal-moderates-the-association-between-parasympathetic-reactivity-and-working-memory-performance-in-adults-reporting-high-levels-of-life-stress
#17
Ryan J Giuliano, Lisa M Gatzke-Kopp, Leslie E Roos, Elizabeth A Skowron
The neurovisceral integration model stipulates that autonomic function plays a critical role in the regulation of higher-order cognitive processes, yet most work to date has examined parasympathetic function in isolation from sympathetic function. Furthermore, the majority of work has been conducted on normative samples, which typically demonstrate parasympathetic withdrawal to increase arousal needed to complete cognitive tasks. Little is known about how autonomic regulation supports cognitive function in populations exposed to high levels of stress, which is critical given that chronic stress exposure alters autonomic function...
April 27, 2017: Psychophysiology
https://www.readbyqxmd.com/read/28449208/complex-modulation-by-stress-of-the-effect-of-seizures-on-long-term-potentiation-in-mouse-hippocampal-slices
#18
Nicola Maggio, Efrat Shavit Stein, Menahem Segal
Stress has a profound effect on ability to express neuronal plasticity, learning and memory. Likewise, epileptic seizures lead to massive changes in brain connectivity, and in ability to undergo long term changes in reactivity to afferent stimulation. In the present study we analyzed possible long lasting interactions between a stressful experience and reactivity to pilocarpine, on the ability to produce long term potentiation (LTP) in a mouse hippocampus. Pilocarpine lowers paired pulse potentiation (PPP) as well as LTP in CA1 region of the mouse hippocampal slice...
April 27, 2017: Hippocampus
https://www.readbyqxmd.com/read/28449134/characterizing-exogenous-mrna-delivery-trafficking-cytoplasmic-release-and-rna-protein-correlations-at-the-level-of-single-cells
#19
Jonathan L Kirschman, Sushma Bhosle, Daryll Vanover, Emmeline L Blanchard, Kristin H Loomis, Chiara Zurla, Kathryn Murray, Blaine C Lam, Philip J Santangelo
The use of synthetic messenger ribonucleic acid (mRNA) to express specific proteins is a highly promising therapeutic and vaccine approach that avoids many safety issues associated with viral or DNA-based systems. However, in order to optimize mRNA designs and delivery, technology advancements are required to study fundamental mechanisms of mRNA uptake and localization at the single-cell and tissue level. Here, we present a single RNA sensitive fluorescent labeling method which allows us to label and visualize synthetic mRNA without significantly affecting function...
April 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28449129/phenotypic-differences-determine-drought-stress-responses-in-ecotypes-of-arundo-donax-adapted-to-different-environments
#20
Mastaneh Ahrar, Dilyana Doneva, Massimiliano Tattini, Cecilia Brunetti, Antonella Gori, Mirco Rodeghiero, Georg Wohlfahrt, Franco Biasioli, Claudio Varotto, Francesco Loreto, Violeta Velikova
Arundo donax has been identified as an important biomass and biofuel crop. Yet, there has been little research on photosynthetic and metabolic traits, which sustain the high productivity of A. donax under drought conditions. This study determined phenotypic differences between two A. donax ecotypes coming from stands with contrasting adaptation to dry climate. We hypothesized that the Bulgarian (BG) ecotype, adapted to drier conditions, exhibits greater drought tolerance than the Italian (IT) ecotype, adapted to a more mesic environment...
April 25, 2017: Journal of Experimental Botany
keyword
keyword
46501
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"