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Beta cells AND Curcumin

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https://www.readbyqxmd.com/read/29688063/evaluation-of-a-novel-biocompatible-magnetic-nanomedicine-based-on-beta-cyclodextrin-loaded-doxorubicin-curcumin-for-overcoming-chemoresistance-in-breast-cancer
#1
Roghayeh Rastegar, Hamid Akbari Javar, Mehdi Khoobi, Poua Dehghan Kelishadi, Gholam Hossein Yousefi, Mahmoud Doosti, Mohammad Hossien Ghahremani, Ahmad Sharif Tabrizi, Fatemeh Imanparast, Elham Gholibeglu, Mahdi Gholami
Codelivery of chemo-sensitizers with chemotherapeutics using combo nanomedicine is a promising platform for overcoming chemoresistance in breast cancer. However, tumor accumulation of nano-carriers based on enhanced permeability and retention (EPR) effect is confounded by heterogeneity in tumor microenvironment. Adsorption of protein corona on surface of nanoparticle boost up clearance by reticulo-endothelial system. In this study, a surface functionalized magnetic nanocomposite (NC) for codelivery of doxorubicin (DOX) and curcumin (CUR) is developed...
April 24, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29578200/epigallocatechin-gallate-curcumin-prevent-transforming-growth-factor-beta-1-induced-epithelial-to-mesenchymal-transition-in-arpe-19-cells
#2
Sivasankar Shanmuganathan, Venil N Sumantran, Narayanasamy Angayarkanni
Background & objectives: Proliferative vitreoretinopathy (PVR) is characterized by the presence of epiretinal membrane (ERM), which exerts traction and detaches the retina. Epithelial to mesenchymal transition (EMT) of the retinal pigment epithelial (RPE) cells underlies ERM formation. Adjuvant therapies aimed at preventing recurrence of PVR after surgery mostly failed in clinical trials. This study was aimed to evaluate the anti-EMT properties of bio-active compounds epigallocatechin gallate (EGCG), curcumin and lycopene as inhibitors of EMT induced by transforming growth factor beta 1 (TGF-β1) in cultured ARPE-19 cells...
November 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/29569954/nitrosative-stress-uncovers-potent-%C3%AE-2-adrenergic-receptor-linked-vasodilation-further-enhanced-by-blocking-clathrin-endosome-formation
#3
Mary D Frame, Anthony M Dewar, Rhodora C Calizo, Adroniqui Qifti, Suzanne F Scarlata
This study investigated the effect of nitroprusside (SNP) pre-exposure on vasodilation via the beta-adrenergic receptor system. SNP was used as a nitrosative / oxidative pro-inflammatory insult. Small arterioles were visualized by intravital microscopy in the hamster cheek pouch tissue (isoflurane, N=45). Control dilation to isoproterenol (EC50 10-7 mol/L) became bi-phasic as a function of concentration following 2 min exposure to SNP (10-4 M), with a pico-molar dilation uncovered, and the micro-molar dilation attenuated...
March 23, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29471781/solid-lipid-curcumin-particles-provide-greater-anti-amyloid-anti-inflammatory-and-neuroprotective-effects-than-curcumin-in-the-5xfad-mouse-model-of-alzheimer-s-disease
#4
Panchanan Maiti, Leela Paladugu, Gary L Dunbar
BACKGROUND: Neuroinflammation and the presence of amyloid beta protein (Aβ) and neurofibrillary tangles are key pathologies in Alzheimer's disease (AD). As a potent anti-amyloid and anti-inflammatory natural polyphenol, curcumin (Cur) could be potential therapies for AD. Unfortunately, poor solubility, instability in physiological fluids, and low bioavailability limit its clinical utility. Recently, different lipid modifications in the formulae of Cur have been developed that would enhance its therapeutic potential...
February 23, 2018: BMC Neuroscience
https://www.readbyqxmd.com/read/29443067/high-resolution-respirometry-to-measure-mitochondrial-function-of-intact-beta-cells-in-the-presence-of-natural-compounds
#5
Kyle B Kener, Devin J Munk, Chad R Hancock, Jeffery S Tessem
High-resolution respirometry allows for the measurement of oxygen consumption of isolated mitochondria, cells and tissues. Beta cells play a critical role in the body by controlling blood glucose levels through insulin secretion in response to elevated glucose concentrations. Insulin secretion is controlled by glucose metabolism and mitochondrial respiration. Therefore, measuring intact beta cell respiration is essential to be able to improve beta cell function as a treatment for diabetes. Using intact 832/13 INS-1 derived beta cells we can measure the effect of increasing glucose concentration on cellular respiration...
January 23, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29408622/inhibition-of-hepatocellular-carcinoma-tumorigenesis-by-curcumin-may-be-associated-with-cdkn1a-and-ctgf
#6
Yun Zeng, Zhengjie Shen, Wenzhe Gu, Mianhua Wu
This study aimed to explore crucial genes, transcription factors (TFs), and microRNAs (miRNAs) associated with the effects of curcumin against hepatocellular carcinoma (HCC). We downloaded data (GSE59713) from Gene Expression Omnibus to analyze differentially expressed genes (DEGs) between curcumin-treated and untreated HCC cell lines. Then, we identified the disease ontology (DO) and functional enrichment analysis of these DEGs and analyzed their protein-protein interactions (PPIs). Additionally, we constructed TF-target gene and miRNA-target gene regulatory networks and explored the potential functions of these DEGs...
February 2, 2018: Gene
https://www.readbyqxmd.com/read/29097552/the-anti-inflammatory-activity-of-curcumin-is-mediated-by-its-oxidative-metabolites
#7
Rebecca L Edwards, Paula B Luis, Paolo V Varuzza, Akil I Joseph, Sai Han Presley, Rupesh Chaturvedi, Claus Schneider
The spice turmeric, with its active polyphenol curcumin, has been used as anti-inflammatory remedy in traditional Asian medicine for centuries. Many cellular targets of curcumin have been identified, but how such a wide range of targets can be affected by a single compound is unclear. Here, we identified curcumin as a pro-drug that requires oxidative activation into reactive metabolites to exert anti-inflammatory activities. Synthetic curcumin analogs that undergo oxidative transformation potently inhibited the pro-inflammatory transcription factor nuclear factor κB (NF-κB), whereas stable, non-oxidizable analogs were less active, with a correlation coefficient ( R 2 ) of IC50 versus log of autoxidation rate of 0...
December 29, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29028430/curcumin-prevents-osteoarthritis-by-inhibiting-the-activation-of-inflammasome-nlrp3
#8
Yufeng Sun, Wei Liu, Hao Zhang, Hongtao Li, Jiakun Liu, Fayao Zhang, Tao Jiang, Shan Jiang
Curcumin has shown protective potential on osteoarthritis. However, its effect on treatment of osteoarthritis remains elusive so far. This study aimed to determine whether curcumin could ameliorate osteoarthritis in vivo and the underline mechanisms. The mice subjected to destabilization of the medial meniscus (DMM) surgery were administered curcumin. Cartilage integrity was evaluated by immunohistological staining. Expression levels of inflammatory cytokines from mice arthrodial cartilage were detected. THP-1 cells were primed by lipopolysaccharide (LPS)/ATP to induce inflammation, followed by the addition of curcumin...
October 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28861684/curcumin-revitalizes-amyloid-beta-25-35-induced-and-organophosphate-pesticides-pestered-neurotoxicity-in-sh-sy5y-and-imr-32-cells-via-activation-of-ape1-and-nrf2
#9
Bibekananda Sarkar, Monisha Dhiman, Sunil Mittal, Anil K Mantha
Amyloid beta (Aβ) peptide deposition is the primary cause of neurodegeneration in Alzheimer's disease (AD) pathogenesis. Several reports point towards the role of pesticides in the AD pathogenesis, especially organophosphate pesticides (OPPs). Monocrotophos (MCP) and Chlorpyrifos (CP) are the most widely used OPPs. In this study, the role of MCP and CP in augmenting the Aβ-induced oxidative stress associated with the neurodegeneration in AD has been assessed in human neuroblastoma IMR-32 and SH-SY5Y cell lines...
December 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28567323/comparative-neuroprotective-effects-of-dietary-curcumin-and-solid-lipid-curcumin-particles-in-cultured-mouse-neuroblastoma-cells-after-exposure-to-a%C3%AE-42
#10
Panchanan Maiti, Gary L Dunbar
Aggregation of amyloid beta protein (Aβ) and phosphorylated tau (p-Tau) plays critical roles in pathogenesis of Alzheimer's disease (AD). As an antiamyloid natural polyphenol, curcumin (Cur) has a potential role in prevention of neurodegeneration in AD. However, due to limited absorption of the dietary Cur, the solid lipid Cur particles (SLCP) have been suggested as being more effective for AD therapy. In the present study, we compared the role of dietary Cur and SLCP on oxidative stress, neuronal death, p-Tau level, and certain cell survival markers in vitro, after exposure to Aβ42...
2017: International Journal of Alzheimer's Disease
https://www.readbyqxmd.com/read/28338387/comparison-of-the-effects-of-curcumin-and-rg108-on-ngf-induced-pc-12%C3%A2-adh-cell-differentiation-and-neurite-outgrowth
#11
COMPARATIVE STUDY
Miriş Dikmen
DNA methyltransferases (DNMTs) are promising epigenetic targets for the development of novel drugs, especially for neurodegenerative disorders. In recent years, there has been increased interest in small molecules that can cross the blood-brain barrier for the treatment of neurodegenerative diseases. Therefore, comparing the neuronal differentiative effects of a natural compound curcumin and a synthetic small molecule RG108 was the aim of this study. The effects of curcumin and RG108 on neuronal differentiation and neurite outgrowth were investigated in the PC-12 Adh cell line...
April 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28214625/curcumin-functionalized-silk-biomaterials-for-anti-aging-utility
#12
Lei Yang, Zhaozhu Zheng, Cheng Qian, Jianbing Wu, Yawen Liu, Shaozhe Guo, Gang Li, Meng Liu, Xiaoqin Wang, David L Kaplan
Curcumin is a natural antioxidant that is isolated from turmeric (Curcuma longa) and exhibits strong free radical scavenging activity, thus functional for anti-aging. However, poor stability and low solubility of curcumin in aqueous conditions limit its biomedical applications. Previous studies have shown that the anti-oxidation activity of curcumin embedded in silk fibroin films could be well preserved, resulting in the promoted adipogenesis from human mesenchymal stem cells (hMSCs) cultured on the surface of the films...
June 15, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27924631/cardioprotective-effects-of-curcumin-loaded-magnetic-hydrogel-nanocomposite-nanocurcumin-against-doxorubicin-induced-cardiac-toxicity-in-rat-cardiomyocyte-cell-lines
#13
Mehrdad Namdari, Ali Eatemadi
Curcumin, is a yellow substance extracted from Curcuma longa rhizomes, it is a crystalline compound that has been traditionally applied in culinary practices and medicines in India. The aim of our study is to demonstrate the efficacy of curcumin-loaded magnetic hydrogel nanocomposite in the treatment of heart hypertrophy. 10 rats weighing 150-200 g each were induced with heart failure using 2.5 mg/kg doxorubicin for 2 weeks. The test groups were treated with curcumin-loaded magnetic hydrogel nanocomposite while the control was treated with curcumin alone...
June 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/27758164/curcumin-counteracts-cisplatin-induced-nephrotoxicity-by-preventing-renal-tubular-cell-apoptosis
#14
Yeter Topcu-Tarladacalisir, Melike Sapmaz-Metin, Turan Karaca
Curcumin has several biological functions particularly antioxidant and anti-inflammatory. The aims of this study are determination of the protective effects of curcumin on cisplatin-induced renal tubular cell apoptosis and related pathways in kidney. Eighteen male Wistar albino rats were randomly divided into three groups (n = 6): the control, cisplatin (CP), and cisplatin + curcumin (CP + CUR). Acute renal damage was induced by single dose of cisplatin (7.5 mg/kg) injected by intraperitoneally (i...
November 2016: Renal Failure
https://www.readbyqxmd.com/read/27715343/curcumin-reduces-lung-inflammation-via-wnt-%C3%AE-catenin-signaling-in-mouse-model-of-asthma
#15
Xia Yang, Jian-Ning Lv, Hui Li, Bo Jiao, Qiu-Hong Zhang, Yong Zhang, Jie Zhang, Yan-Qin Liu, Ming Zhang, Hu Shan, Jin-Zhao Zhang, Run-Miao Wu, Ya-Li Li
OBJECTIVES: Asthma is a chronic inflammatory, heterogeneous airway disease affecting millions of people around the world. Curcumin has been found to have anti-inflammatory and antifibrosis effects. Researchers reported that curcumin regulated Wnt/β-catenin signaling in lots of cells. However, whether curcumin regulates the levels of Wnt/β-Catenin signaling in lung tissues and DCs (dendritic cells) remains unclear. In this study, we assessed the effects of curcumin on DCs and asthma...
May 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/27693453/development-of-a-neuroprotective-potential-algorithm-for-medicinal-plants
#16
Weixi Liu, Hang Ma, Nicholas A DaSilva, Kenneth N Rose, Shelby L Johnson, Lu Zhang, Chunpeng Wan, Joel A Dain, Navindra P Seeram
Medicinal plants are promising candidates for Alzheimer's disease (AD) research but there is lack of systematic algorithms and procedures to guide their selection and evaluation. Herein, we developed a Neuroprotective Potential Algorithm (NPA) by evaluating twenty-three standardized and chemically characterized Ayurvedic medicinal plant extracts in a panel of bioassays targeting oxidative stress, carbonyl stress, protein glycation, amyloid beta (Aβ) fibrillation, acetylcholinesterase (AChE) inhibition, and neuroinflammation...
November 2016: Neurochemistry International
https://www.readbyqxmd.com/read/27457691/antidiabetic-potential-of-polyherbal-formulation-db14201-preclinical-development-safety-and-efficacy-studies
#17
Geetha Krishnan Gopalakrishna Pillai, Sonali S Bharate, Anshumali Awasthi, Ritu Verma, Gautam Mishra, Anu T Singh, Manu Jaggi, Ambrish Mithal, Ram A Vishwakarma
ETHNOPHARMACOLOGICAL RELEVANCE: The poly-herbal formulation DB14201 is a new combination of ayurvedic ingredients for treatment of diabetes. The aim of present study was to investigate safety and in vivo efficacy of DB14201 extract. Further this work was aimed to develop, characterize and standardize DB14201 extract and develop it as a botanical drug. MATERIALS AND METHODS: The polyherbal extract was standardized using four chemical markers. The LC-MS/MS method was developed for identification and quantification of mangiferin, berberine, kaempferol and curcumin...
February 2, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27005056/the-effect-of-curcumin-delivery-using-peptide-micelles-to-pancreatic-beta-cells-under-the-hypoxia-condition
#18
Xiaonan Tan, Jaesik Han, Minhyung Lee
No abstract text is available yet for this article.
September 10, 2015: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/26971524/reversal-of-beta-amyloid-induced-neurotoxicity-in-pc12-cells-by-curcumin-the-important-role-of-ros-mediated-signaling-and-erk-pathway
#19
Cun-Dong Fan, Yuan Li, Xiao-Ting Fu, Qing-Jian Wu, Ya-Jun Hou, Ming-Feng Yang, Jing-Yi Sun, Xiao-Yan Fu, Zun-Cheng Zheng, Bao-Liang Sun
Progressive accumulation of beta-amyloid (Aβ) will form the senile plaques and cause oxidative damage and neuronal cell death, which was accepted as the major pathological mechanism to the Alzheimer's disease (AD). Hence, inhibition of Aβ-induced oxidative damage and neuronal cell apoptosis by agents with potential antioxidant properties represents one of the most effective strategies in combating human AD. Curcumin (Cur) a natural extraction from curcuma longa has potential of pharmacological efficacy, including the benefit to antagonize Aβ-induced neurotoxicity...
March 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/26649317/inhibition-of-iapp-aggregation-and-toxicity-by-natural-products-and-derivatives
#20
REVIEW
Amit Pithadia, Jeffrey R Brender, Carol A Fierke, Ayyalusamy Ramamoorthy
Fibrillar aggregates of human islet amyloid polypeptide, hIAPP, a pathological feature seen in some diabetes patients, are a likely causative agent for pancreatic beta-cell toxicity, leading to a transition from a state of insulin resistance to type II diabetes through the loss of insulin producing beta-cells by hIAPP induced toxicity. Because of the probable link between hIAPP and the development of type II diabetes, there has been strong interest in developing reagents to study the aggregation of hIAPP and possible therapeutics to block its toxic effects...
2016: Journal of Diabetes Research
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