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https://www.readbyqxmd.com/read/28501772/hyperoside-protects-against-chronic-mild-stress-induced-learning-and-memory-deficits
#1
Yeli Gong, Youhua Yang, Xiaoqing Chen, Min Yang, Dan Huang, Rong Yang, Lianying Zhou, Changlei Li, Qiuju Xiong, Zhe Xiong
Hyperoside (quercetin-3-O-b-d-galactosidepyranose) is a plant-derived flavonoid mainly found in fruits, fruit juices (most notably flavanols, flavanones, and anthocyanins) and Chinese traditional medicines. It has been applied to relieve pain and improve cardiovascular functions in clinic. However, the effects of hyperoside on cognitive impairment induced by chronic stress and the underlying molecular mechanisms remain unclear. In the current study, we used chronic mild stress (CMS) rats to investigate the effects of hyperoside on learning and memory and further explore the possible mechanisms...
May 11, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28498421/molecular-analysis-of-the-mouse-brain-exposed-to-chronic-mild-stress-the-influence-of-hepatocyte-nuclear-factor-4%C3%AE-on-physiological-homeostasis
#2
Kaoru Ikubo, Kyosuke Yamanishi, Nobutaka Doe, Takuya Hashimoto, Miho Sumida, Yuko Watanabe, Yosif El-Darawish, Wen Li, Haruki Okamura, Hiromichi Yamanishi, Hisato Matsunaga
Major depressive disorder (MDD) is a prevalent disorder that causes considerable disability in social functioning and is a risk factor for physical diseases. Recent clinical reports have demonstrated a marked association between MDD and physiological dyshomeostasis induced by metabolic disorders, including diabetes, hormone abnormalities and autoimmune diseases. The authors of the present study have previously analyzed comparative gene expression profiles in the prefrontal cortex (PFC) of a chronic mild stress (CMS) animal model of MDD...
May 11, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28454294/mesenchymal-stem-cell-conditioned-medium-promotes-mda-mb-231-cell-migration-and-inhibits-a549-cell-migration-by-regulating-insulin-receptor-and-human-epidermal-growth-factor-receptor-3-phosphorylation
#3
Pengfei Li, Hongwei Zhou, Guohu Di, Jin Liu, Yang Liu, Zhihong Wang, Yinxuan Sun, Haifeng Duan, Junzhong Sun
Various in vitro and in vivo studies have linked mesenchymal stem cells (MSCs) with cancer, but little is known about the effect of MSCs on tumor progression. The present study aimed to analyze the role of the MSCs from different tissues, consisting of human bone marrow, adipose and the umbilical cord tissues, and the heterogeneity of tumors in tumor progression. By collecting the culture supernatants of MSCs as MSC-conditioned media (CMs), the present study found that MSC-CM produces no significant effect on the proliferation of MDA-MB-231 and A549 tumor cells...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28439018/conservation-and-divergence-of-c-terminal-domain-structure-in-the-retinoblastoma-protein-family
#4
Tyler J Liban, Edgar M Medina, Sarvind Tripathi, Satyaki Sengupta, R William Henry, Nicolas E Buchler, Seth M Rubin
The retinoblastoma protein (Rb) and the homologous pocket proteins p107 and p130 negatively regulate cell proliferation by binding and inhibiting members of the E2F transcription factor family. The structural features that distinguish Rb from other pocket proteins have been unclear but are critical for understanding their functional diversity and determining why Rb has unique tumor suppressor activities. We describe here important differences in how the Rb and p107 C-terminal domains (CTDs) associate with the coiled-coil and marked-box domains (CMs) of E2Fs...
May 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28438149/anti-depressant-and-anxiolytic-potential-of-acacia-hydaspica-r-parker-aerial-parts-extract-modulation-of-brain-antioxidant-enzyme-status
#5
Tayyaba Afsar, Suhail Razak, Muhammad Rashid Khan, Ali Almajwal
BACKGROUND: Oxidative stress may link to psychiatric disorders, and is being regarded as a plausible mechanism that can affect the regulation of these illnesses. The present study was undertaken to investigate the antidepressant and anxiolytic potential of A. hydaspica R. parkers. Brain oxidative stress enzyme levels were analyzed to correlate depression and stress with brain antioxidant status. METHODS: Antidepressant and anxiolytic effect of methanol extract of A...
April 24, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28433559/the-kcnh2-ivs9-28a-g-mutation-causes-aberrant-isoform-expression-and-herg-trafficking-defect-in-cardiomyocytes-derived-from-patients-affected-by-long-qt-syndrome-type-2
#6
Manuela Mura, Ashish Mehta, Chrishan J Ramachandra, Rita Zappatore, Federica Pisano, Maria Chiara Ciuffreda, Vincenzo Barbaccia, Lia Crotti, Peter J Schwartz, Winston Shim, Massimiliano Gnecchi
BACKGROUND: Long QT Syndrome type 2 (LQT2) is caused by mutations in the KCNH2 gene that encodes for the α-subunit (hERG) of the ion channel conducting the rapid delayed rectifier potassium current (IKr). We have previously identified a disease causing mutation (IVS9-28A/G) in the branch point of the splicing of KCNH2 intron 9. However, the mechanism through which this mutation causes the disease is unknown. METHODS AND RESULTS: We generated human induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) from fibroblasts of two IVS9-28A/G mutation carriers...
April 12, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28425687/patient-protection-and-affordable-care-act-market-stabilization-final-rule
#7
(no author information available yet)
This rule finalizes changes that will help stabilize the individual and small group markets and affirm the traditional role of State regulators. This final rule amends standards relating to special enrollment periods, guaranteed availability, and the timing of the annual open enrollment period in the individual market for the 2018 plan year; standards related to network adequacy and essential community providers for qualified health plans; and the rules around actuarial value requirements.
April 18, 2017: Federal Register
https://www.readbyqxmd.com/read/28378126/global-transcriptomic-analysis-of-induced-cardiomyocytes-predicts-novel-regulators-for-direct-cardiac-reprogramming
#8
Mahmood Talkhabi, Seyed Morteza Razavi, Ali Salari
Heart diseases are the most significant cause of morbidity and mortality in the world. De novo generated cardiomyocytes (CMs) are a great cellular source for cell-based therapy and other potential applications. Direct cardiac reprogramming is the newest method to produce CMs, known as induced cardiomyocytes (iCMs). During a direct cardiac reprogramming, also known as transdifferentiation, non-cardiac differentiated adult cells are reprogrammed to cardiac identity by forced expression of cardiac-specific transcription factors (TFs) or microRNAs...
April 4, 2017: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/28375590/medicaid-program-disproportionate-share-hospital-payments-treatment-of-third-party-payers-in-calculating-uncompensated-care-costs-final-rule
#9
(no author information available yet)
This final rule addresses the hospital-specific limitation on Medicaid disproportionate share hospital (DSH) payments under section 1923(g)(1)(A) of the Social Security Act (Act), and the application of such limitation in the annual DSH audits required under section 1923(j) of the Act, by clarifying that the hospital-specific DSH limit is based only on uncompensated care costs. Specifically, this rule makes explicit in the text of the regulation, an existing interpretation that uncompensated care costs include only those costs for Medicaid eligible individuals that remain after accounting for payments made to hospitals by or on behalf of Medicaid eligible individuals, including Medicare and other third party payments that compensate the hospitals for care furnished to such individuals...
April 3, 2017: Federal Register
https://www.readbyqxmd.com/read/28356340/analysis-of-cardiac-myocyte-maturation-using-casaav-a-platform-for-rapid-dissection-of-cardiac-myocyte-gene-function-in-vivo
#10
Yuxuan Guo, Nathan J VanDusen, Lina Zhang, Weiliang Gu, Isha Sethi, Silvia Guatimosim, Qing Ma, Blake D Jardin, Yulan Ai, Donghui Zhang, Biyi Chen, Ang Guo, Guo-Cheng Yuan, Long-Sheng Song, William T Pu
Rationale: Loss-of-function studies in cardiac myocytes (CMs) are currently limited by the need for appropriate conditional knockout alleles. The factors that regulate CM maturation are poorly understood. Prior studies on CM maturation have been confounded by heart dysfunction caused by whole organ gene inactivation. Objective: To develop a new technical platform to rapidly characterize cell-autonomous gene function in postnatal murine CMs and apply it to identify genes that regulate T-tubules, a hallmark of mature cardiac myocytes...
March 29, 2017: Circulation Research
https://www.readbyqxmd.com/read/28339010/effects-of-different-cellulose-membranes-regenerated-from-styela-clava-tunics-on-wound-healing
#11
Sung Hwa Song, Keum Yong Seong, Ji Eun Kim, Jun Go, Eun Kyoung Koh, Ji Eun Sung, Hong Joo Son, Young Jin Jung, Hye Sung Kim, Jin Tae Hong, Dae Youn Hwang
The aim of this study was to investigate the therapeutic effects of three different cellulose membranes (CMs) manufactured from Styela clava tunics (SCTs) on the healing of cutaneous wounds. We examined the physical properties and therapeutic effects of three CMs regenerated from SCTs (referred to as SCT‑ CMs), including normal CM (SCT‑CM), freeze-dried SCT‑CM (FSCT‑CM) and sodium alginate-supplemented SCT‑CM (ASCT‑CM) on skin regeneration and angiogenesis using Sprague-Dawley (SD) rats. FSCT‑CM exhibited an outstanding interlayered structure, a high tensile strength (1...
May 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28318445/new-cms-clinical-decision-support-regulations-a-potential-opportunity-with-major-challenges
#12
Keith Hentel, Andrew Menard, Ramin Khorasani
No abstract text is available yet for this article.
April 2017: Radiology
https://www.readbyqxmd.com/read/28267873/changes-in-ppar%C3%AE-expression-in-a-rat-model-of-stress-induced-depression
#13
Keng-Fan Liu, Yingxiao Li, Kai-Chung Cheng, Chao Chin Hsu, Juei-Tang Cheng, Wen-Huang Peng
Depression is a common mental disorder that has been linked to a decrease in the expression of serotonin and/or the serotonin transporter in the brain. Antidepressants that target the monoaminergic system are widely used in the clinical setting. PPARδ overexpression or activation is thought to improve depression-like behaviors in rodents. The present study was designed to characterize the changes in PPARδ expression in the hippocampus in rats with stress-induced depression. We used an unpredictable chronic mild stress (CMS) model in rats to study the role of PPARδ in the hippocampus...
March 7, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28266623/commensal-gut-bacteria-modulate-phosphorylation-dependent-ppar%C3%AE-transcriptional-activity-in-human-intestinal-epithelial-cells
#14
Malgorzata Nepelska, Tomas de Wouters, Elsa Jacouton, Fabienne Béguet-Crespel, Nicolas Lapaque, Joël Doré, Velmurugesan Arulampalam, Hervé M Blottière
In healthy subjects, the intestinal microbiota interacts with the host's epithelium, regulating gene expression to the benefit of both, host and microbiota. The underlying mechanisms remain poorly understood, however. Although many gut bacteria are not yet cultured, constantly growing culture collections have been established. We selected 57 representative commensal bacterial strains to study bacteria-host interactions, focusing on PPARγ, a key nuclear receptor in colonocytes linking metabolism and inflammation to the microbiota...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28249764/dgat1-and-dgat2-regulate-enterocyte-triacylglycerol-distribution-and-alter-proteins-associated-with-cytoplasmic-lipid-droplets-in-response-to-dietary-fat
#15
Yu-Han Hung, Alicia L Carreiro, Kimberly K Buhman
Enterocytes, the absorptive cells of the small intestine, mediate efficient absorption of dietary fat (triacylglycerol, TAG). The digestive products of dietary fat are taken up by enterocytes, re-esterified into TAG, and packaged on chylomicrons (CMs) for secretion into blood or temporarily stored within cytoplasmic lipid droplets (CLDs). Altered enterocyte TAG distribution impacts susceptibility to high fat diet associated diseases, but molecular mechanisms directing TAG toward these fates are unclear. Two enzymes, acyl CoA: diacylglycerol acyltransferase 1 (Dgat1) and Dgat2, catalyze the final, committed step of TAG synthesis within enterocytes...
February 27, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28246128/a-comprehensive-talen-based-knockout-library-for-generating-human-induced-pluripotent-stem-cell-based-models-for-cardiovascular-diseases
#16
REVIEW
Ioannis Karakikes, Vittavat Termglinchan, Diana A Cepeda, Jaecheol Lee, Sebastian Diecke, Ayal Hendel, Ilanit Itzhaki, Mohamed Ameen, Rajani Shrestha, Haodi Wu, Ning Ma, Ning-Yi Shao, Timon Seeger, Nicole Woo, Kitchener D Wilson, Elena Matsa, Matthew H Porteus, Vittorio Sebastiano, Joseph C Wu
RATIONALE: Targeted genetic engineering using programmable nucleases such as transcription activator-like effector nucleases (TALENs) is a valuable tool for precise, site-specific genetic modification in the human genome. OBJECTIVE: The emergence of novel technologies such as human induced pluripotent stem cells (iPSCs) and nuclease-mediated genome editing represent a unique opportunity for studying cardiovascular diseases in vitro. METHODS AND RESULTS: By incorporating extensive literature and database searches, we designed a collection of TALEN constructs to knockout 88 human genes that are associated with cardiomyopathies and congenital heart diseases...
May 12, 2017: Circulation Research
https://www.readbyqxmd.com/read/28245924/resolving-heart-regeneration-by-replacement-histone-profiling
#17
Joseph Aaron Goldman, Guray Kuzu, Nutishia Lee, Jaclyn Karasik, Matthew Gemberling, Matthew J Foglia, Ravi Karra, Amy L Dickson, Fei Sun, Michael Y Tolstorukov, Kenneth D Poss
Chromatin regulation is a principal mechanism governing animal development, yet it is unclear to what extent structural changes in chromatin underlie tissue regeneration. Non-mammalian vertebrates such as zebrafish activate cardiomyocyte (CM) division after tissue damage to regenerate lost heart muscle. Here, we generated transgenic zebrafish expressing a biotinylatable H3.3 histone variant in CMs and derived cell-type-specific profiles of histone replacement. We identified an emerging program of putative enhancers that revise H3...
February 27, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28244821/regulation-of-the-microenvironment-for-cardiac-tissue-engineering
#18
Maureen Wanjare, Ngan F Huang
The microenvironment of myocardium plays an important role in the fate and function of cardiomyocytes (CMs). Cardiovascular tissue engineering strategies commonly utilize stem cell sources in conjunction with microenvironmental cues that often include biochemical, electrical, spatial and biomechanical factors. Microenvironmental stimulation of CMs, in addition to the incorporation of intercellular interactions from non-CMs, results in the generation of engineered cardiac constructs. Current studies suggest that use of these factors when engineering cardiac constructs improve cardiac function when implanted in vivo...
March 2017: Regenerative Medicine
https://www.readbyqxmd.com/read/28215635/mechanical-stimulation-promote-the-osteogenic-differentiation-of-bone-marrow-stromal-cells-through-epigenetic-regulation-of-sonic-hedgehog
#19
Chuandong Wang, Shengzhou Shan, Chenglong Wang, Jing Wang, Jiao Li, Guoli Hu, Kerong Dai, Qingfeng Li, Xiaoling Zhang
Mechanical unloading leads to bone loss and disuse osteoporosis partly due to impaired osteoblastogenesis of bone marrow stromal cells (BMSCs). However, the underlying molecular mechanisms of this phenomenon are not fully understood. In this study, we demonstrated that cyclic mechanical stretch (CMS) promotes osteoblastogenesis of BMSCs both in vivo and in vitro. Besides, we found that Hedgehog (Hh) signaling pathway was activated in this process. Inhibition of which by either knockdown of Sonic hedgehog (Shh) or treating BMSCs with Hh inhibitors attenuated the osteogenic effect of CMS on BMSCs, suggesting that Hh signaling pathway acts as an endogenous mediator of mechanical stimuli on BMSCs...
March 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28208711/antidepressant-effects-of-aripiprazole-augmentation-for-cilostazol-treated-mice-exposed-to-chronic-mild-stress-after-ischemic-stroke
#20
Yu Ri Kim, Ha Neui Kim, Ki Whan Hong, Hwa Kyoung Shin, Byung Tae Choi
The aim of this study was to determine the effects and underlying mechanism of aripiprazole (APZ) augmentation for cilostazol (CLS)-treated post-ischemic stroke mice that were exposed to chronic mild stress (CMS). Compared to treatment with either APZ or CLS alone, the combined treatment resulted in a greater reduction in depressive behaviors, including anhedonia, despair-like behaviors, and memory impairments. This treatment also significantly reduced atrophic changes in the striatum, cortex, and midbrain of CMS-treated ischemic mice, and inhibited neuronal cell apoptosis, particularly in the striatum and the dentate gyrus of the hippocampus...
February 8, 2017: International Journal of Molecular Sciences
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