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Curcumin resveratrol

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https://www.readbyqxmd.com/read/28283780/metabolic-carbonyl-reduction-of-anthracyclines-role-in-cardiotoxicity-and-cancer-resistance-reducing-enzymes-as-putative-targets-for-novel-cardioprotective-and-chemosensitizing-agents
#1
REVIEW
Kamil Piska, Paulina Koczurkiewicz, Adam Bucki, Katarzyna Wójcik-Pszczoła, Marcin Kołaczkowski, Elżbieta Pękala
Anthracycline antibiotics (ANT), such as doxorubicin or daunorubicin, are a class of anticancer drugs that are widely used in oncology. Although highly effective in cancer therapy, their usefulness is greatly limited by their cardiotoxicity. Possible mechanisms of ANT cardiotoxicity include their conversion to secondary alcohol metabolites (i.e. doxorubicinol, daunorubicinol) catalyzed by carbonyl reductases (CBR) and aldo-keto reductases (AKR). These metabolites are suspected to be more cardiotoxic than their parent compounds...
March 10, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28273819/cancer-chemoprevention-by-phytochemicals-nature-s-healing-touch
#2
REVIEW
Haseeb Zubair, Shafquat Azim, Aamir Ahmad, Mohammad Aslam Khan, Girijesh Kumar Patel, Seema Singh, Ajay Pratap Singh
Phytochemicals are an important part of traditional medicine and have been investigated in detail for possible inclusion in modern medicine as well. These compounds often serve as the backbone for the synthesis of novel therapeutic agents. For many years, phytochemicals have demonstrated encouraging activity against various human cancer models in pre-clinical assays. Here, we discuss select phytochemicals-curcumin, epigallocatechin-3-gallate (EGCG), resveratrol, plumbagin and honokiol-in the context of their reported effects on the processes of inflammation and oxidative stress, which play a key role in tumorigenesis...
March 3, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28258675/cancer-chemoprevention-selected-molecular-mechanisms
#3
Katarzyna Walczak, Sebastian Marciniak, Grażyna Rajtar
The effect of diet on cancer formation and prevention of carcinogenesis has attracted considerable attention for years and is the subject of several studies. Some components of the daily diet, such as resveratrol, curcumin, genistein, gingerol, can significantly reduce the risk of cancer or affect the rate of tumor progression. Cancer chemoprevention assumes the use of natural or synthetic biologically active substances in order to prevent, inhibit or reverse the progression of cancer. There are many biologically active compounds in several natural products, i...
March 2, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28238838/polyphenols-in-combination-with-%C3%AE-cyclodextrin-can-inhibit-and-disaggregate-%C3%AE-synuclein-amyloids-under-cell-mimicking-conditions-a-promising-therapeutic-alternative
#4
Saurabh Gautam, Sandip Karmakar, Radhika Batra, Pankaj Sharma, Prashant Pradhan, Jasdeep Singh, Bishwajit Kundu, Pramit K Chowdhury
Parkinson's disease is characterized by the presence of insoluble and neurotoxic aggregates (amyloid fibrils) of an intrinsically disordered protein α-synuclein. In this study we have examined the effects of four naturally occurring polyphenols in combination with β-cyclodextrin (β-CD) on the aggregation of α-synuclein in the presence of macromolecular crowding agents. Our results reveal that even at sub-stoichiometric concentrations of the individual components, the polyphenol-β-CD combination(s) not only inhibited the aggregation of the proteins but was also effective in disaggregating preformed fibrils...
February 23, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28238768/regulation-of-autophagy-by-some-natural-products-as-a-potential-therapeutic-strategy-for-cardiovascular-disorders
#5
REVIEW
Mahmoud Hashemzaei, Reza Entezari Heravi, Ramin Rezaee, Ali Roohbakhsh, Gholamreza Karimi
Autophagy is a lysosomal degradation process through which long-lived and misfolded proteins and organelles are sequestered, degraded by lysosomes, and recycled. Autophagy is an essential part of cardiomyocyte homeostasis and increases the survival of cells following cellular stress and starvation. Recent studies made clear that dysregulation of autophagy in the cardiovascular system leads to heart hypertrophy and failure. In this manner, autophagy seems to be an attractive target in the new treatment of cardiovascular diseases...
February 23, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28235660/targeting-the-tlr4-signaling-pathway-by-polyphenols-a-novel-therapeutic-strategy-for-neuroinflammation
#6
REVIEW
Mahban Rahimifard, Faheem Maqbool, Shermineh Moeini-Nodeh, Kamal Niaz, Mohammad Abdollahi, Nady Braidy, Seyed Mohammad Nabavi, Seyed Fazel Nabavi
A wide array of cell signaling mediators and their interactions play vital roles in neuroinflammation associated with ischemia, brain trauma, developmental disorders and age-related neurodegeneration. Along with neurons, microglia and astrocytes are also affected by the inflammatory cascade by releasing pro-inflammatory cytokines, chemokines and reactive oxygen species. The release of pro-inflammatory mediators in response to neural dysfunction may be helpful, neutral or even deleterious to normal cellular survival...
February 21, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28222524/a-combination-of-resveratrol-and-curcumin-is-effective-against-aluminum-chloride-induced-neuroinflammation-in-rats
#7
Amira Zaky, Ahmad Bassiouny, Mahitab Farghaly, Bassma M El-Sabaa
BACKGROUND: Experimental studies have demonstrated that aluminum is an environmental toxin that induces neuroinflammation and the development of Alzheimer's disease. OBJECTIVE: In this report, we investigated the beneficial effect of a combination of resveratrol and curcumin to reduce aluminum-induced neuroinflammation. METHOD: We employed both an in vivo model of aluminum-induced neuroinflammation and an in vitro aluminum stimulated cultured PC-12 cells...
February 7, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28185862/targeting-mirnas-by-polyphenols-novel-therapeutic-strategy-for-cancer
#8
REVIEW
Kasi Pandima Devi, Tamilselvam Rajavel, Maria Daglia, Seyed Fazel Nabavi, Anupam Bishayee, Seyed Mohammad Nabavi
In the recent years, polyphenols have gained significant attention in scientific community owing to their potential anticancer effects against a wide range of human malignancies. Epidemiological, clinical and preclinical studies have supported that daily intake of polyphenol-rich dietary fruits have a strong co-relationship in the prevention of different types of cancer. In addition to direct antioxidant mechanisms, they also regulate several therapeutically important oncogenic signaling and transcription factors...
February 6, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28183265/some-important-dietary-polyphenolic-compounds-an-anti-inflammatory-and-immunoregulatory-perspective
#9
Mayank Kinger, Sushil Kumar, Vinod Kumar
Inflammation plays an important role in maintaining the body's homeostasis. It repairs the damaged tissues of the body resulting from injury or infection. In addition, a diverse array of diseases like hepatitis, arthritis and colitis has been reported and described to be associated with inflammatory processes. Some autoimmune diseases like inflammatory bowel disease (IBD) emerge by the influence of numerous genes in complex environmental situations belongs to inflammation. The currently available processes for curing inflammation and related disorders facilitate the use of non steroidal anti-inflammatory drugs (NSAIDs)...
February 8, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28178749/improving-on-nature-the-role-of-nanomedicine-in-the-development-of-clinical-natural-drugs
#10
Anna Rita Bilia, Vieri Piazzini, Clizia Guccione, Laura Risaliti, Martina Asprea, Giada Capecchi, Maria Camilla Bergonzi
Natural products have been used as a major source of drugs for millennia, and about half of the pharmaceuticals in use today are derived from natural products. However, their efficacy can be limited because of their low hydrophilicity and intrinsic dissolution rate(s), or physical/chemical instability. In addition, they can present scarce absorption, poor pharmacokinetics and bioavailability, scarce biodistribution, first-pass metabolism, trivial penetration and accumulation in the organs of the body, or low targeting efficacy...
March 2017: Planta Medica
https://www.readbyqxmd.com/read/28146130/effects-of-natural-products-on-fructose-induced-nonalcoholic-fatty-liver-disease-nafld
#11
REVIEW
Qian Chen, Tingting Wang, Jian Li, Sijian Wang, Feng Qiu, Haiyang Yu, Yi Zhang, Tao Wang
As a sugar additive, fructose is widely used in processed foods and beverages. Excessive fructose consumption can cause hepatic steatosis and dyslipidemia, leading to the development of metabolic syndrome. Recent research revealed that fructose-induced nonalcoholic fatty liver disease (NAFLD) is related to several pathological processes, including: (1) augmenting lipogenesis; (2) leading to mitochondrial dysfunction; (3) stimulating the activation of inflammatory pathways; and (4) causing insulin resistance...
January 31, 2017: Nutrients
https://www.readbyqxmd.com/read/28137215/targeting-cancer-stem-cells-for-chemoprevention-of-pancreatic-cancer
#12
Dharmalingam Subramaniam, Gaurav Kaushik, Prasad Dandawate, Shrikant Anant
Pancreatic ductal adenocarcinoma is one of the deadliest cancers worldwide and the fourth leading cause of cancer-related deaths in United States. Regardless of the advances in molecular pathogenesis and consequential efforts to suppress the disease, this cancer remains a major health problem in United States. By 2030, the projection is that pancreatic cancer will be climb up to be the second leading cause of cancer-related deaths in the United States. Pancreatic cancer is a rapidly invasive and highly metastatic cancer, and does not respond to standard therapies...
January 26, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28063518/role-of-nutraceutical-sirt1-modulators-in-ampk-and-mtor-pathway-evidence-of-a-synergistic-effect
#13
Luca Giovannini, Sara Bianchi
OBJECTIVE: The aim of this study was to evaluate the effect of different natural substances on SIRT1 expression and on AMPK and mTOR phosphorylation. Moreover, we investigated the presence of a synergistic effect between the substances. METHODS: Human cervical carcinoma cells were seeded in 12-well plates, then incubated with the nine tested substances (resveratrol, quercetin, berberine, catechin, tyrosol, ferulic acid, niclosamide, curcumin, and malvidin) at different concentrations and left in incubation for 3, 6, and 24 h...
February 2017: Nutrition
https://www.readbyqxmd.com/read/28061797/natural-compounds-targeting-major-cell-signaling-pathways-a-novel-paradigm-for-osteosarcoma-therapy
#14
REVIEW
Pablo Angulo, Gaurav Kaushik, Dharmalingam Subramaniam, Prasad Dandawate, Kathleen Neville, Katherine Chastain, Shrikant Anant
Osteosarcoma is the most common primary bone cancer affecting children and adolescents worldwide. Despite an incidence of three cases per million annually, it accounts for an inordinate amount of morbidity and mortality. While the use of chemotherapy (cisplatin, doxorubicin, and methotrexate) in the last century initially resulted in marginal improvement in survival over surgery alone, survival has not improved further in the past four decades. Patients with metastatic osteosarcoma have an especially poor prognosis, with only 30% overall survival...
January 7, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/27989140/enolate-forming-compounds-as-a-novel-approach-to-cytoprotection
#15
Richard M LoPachin, Brian C Geohagen, Lars Ulrik Nordstrøm, Terrence Gavin
Evidence from laboratory studies and clinical trials suggests that plant-derived polyphenolic compounds such as curcumin, resveratrol, or phloretin might be useful in the treatment of certain diseases (e.g., Alzheimer's disease) and acute tissue injury states (e.g., spinal cord trauma). However, despite this potential, the corresponding chemical instability, toxic potential, and low bioavailability of these compounds could limit their ultimate clinical relevance. We have shown that pharmacophores of curcumin (e...
December 19, 2016: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/27951490/2-4-disubstituted-quinazolines-as-amyloid-%C3%AE-aggregation-inhibitors-with-dual-cholinesterase-inhibition-and-antioxidant-properties-development-and-structure-activity-relationship-sar-studies
#16
Tarek Mohamed, Praveen P N Rao
A library of fifty-seven 2,4-disubstituted quinazoline derivatives were designed, synthesized and evaluated as a novel class of multi-targeting agents to treat Alzheimer's disease (AD). The biological assay results demonstrate the ability of several quinazoline derivatives to inhibit both acetyl and butyrylcholinesterase (AChE and BuChE) enzymes (IC50 range = 1.6-30.5 μM), prevent beta-amyloid (Aβ) aggregation (IC50 range 270 nM-16.7 μM) and exhibit antioxidant properties (34-63.4% inhibition at 50 μM)...
January 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27925249/inhibition-of-glucuronidation-and-oxidative-metabolism-of-buprenorphine-using-gras-compounds-or-dietary-constituents-supplements-in-vitro-proof-of-concept
#17
Neha V Maharao, Anand A Joshi, Phillip M Gerk
The present study investigated the potential of generally recognized as safe (GRAS) compounds or dietary substances to inhibit the presystemic metabolism of buprenorphine and to increase its oral bioavailability. Using IVIVE, buprenorphine extraction ratios in intestine and liver were predicted as 96% and 71%, respectively. In addition, the relative fraction of buprenorphine metabolized by oxidation and glucuronidation in these two organs was estimated using pooled human intestinal and liver microsomes. In both organs, oxidation appeared to be the major metabolic pathway with a 6 and 4 fold higher intrinsic clearance than glucuronidation in intestine and liver, respectively...
December 7, 2016: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/27912878/selecting-optimum-protein-nano-carriers-for-natural-polyphenols-using-chemoinformatics-tools
#18
AbdelKader A Metwally, Sherweit H El-Ahmady, Rania M Hathout
BACKGROUND: The normal fate of any natural product with a therapeutic potential is to be formulated into an effective medicine. However, the conventional methods of selecting the suitable formulations or carriers based on the formulator experiences, trials and errors as well as materials availability do not usually yield the optimal results. HYPOTHESIS: We hypothesize the possibility of the virtual optimum selection of a protein carrier for two polyphenolic compounds widely investigated for their chemopreventive effects; resveratrol and curcumin using a combination of some chemoinformatics tools...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27865863/curcumin-promotes-the-oncoltyic-capacity-of-vesicular-stomatitis-virus-for-the-treatment-of-prostate-cancers
#19
Dylan J Fehl, Maryam Ahmed
Vesicular stomatitis virus (VSV) matrix (M) protein mutants have been studied as oncolytic agents due to their capacity to effectively kill cancer cells while exhibiting low virulence in vivo. Despite encouraging results, many cancer cells maintain resistance to oncolytic VSV mutants in part due to residual antiviral responses. We sought to determine whether combination of VSV with natural agents with anti-tumor properties, such as curcumin, resveratrol, and flavokavain B, would enhance tumor cell killing in a prostate cancer model...
January 15, 2017: Virus Research
https://www.readbyqxmd.com/read/27863907/evidence-of-epigenetic-tags-in-cardiac-fibrosis
#20
REVIEW
Vincenzo Grimaldi, Maria Rosaria De Pascale, Alberto Zullo, Andrea Soricelli, Teresa Infante, Francesco Paolo Mancini, Claudio Napoli
In cardiac fibrosis, following an injury or a stress, non-functional fibrotic tissue substitutes normal myocardium, thus leading to progressive heart failure. Activated fibroblasts are principal determinants of cardiac fibrosis by producing excessive fibrotic extracellular matrix and causing hypertrophy of cardiomyocytes. Epigenetic changes, such as DNA methylation, histone modifications, and miRNAs have been involved in these mechanisms. Therefore, there is a strong interest in reverting such epigenetic transformations in order to arrest myocardial fibrotic degeneration...
February 2017: Journal of Cardiology
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