keyword
MENU ▼
Read by QxMD icon Read
search

Curcuminoids

keyword
https://www.readbyqxmd.com/read/28075008/promising-anti-tumor-properties-of-bisdemethoxycurcumin-a-naturally-occurring-curcumin-analogue
#1
REVIEW
Mahin Ramezani, Mahdi Hatamipour, Amirhosein Sahebkar
Curcuminoids are turmeric-extracted phytochemicals with documented chemopreventive and anti-tumor activities against several types of malignancies. Curcuminoids can modulate several molecular pathways and cellular targets involved in different stages of tumor initiation, growth and metastasis. Bisdemethoxycurcumin (BDMC) is a minor constituent (approximately 3%) of curcuminoids that has been shown to be more stable than the other two main curcuminoids i.e. curcumin and demthoxycurcumin. Recent studies have revealed that BDMC has anti-tumor effects exerted through a multimechanistic mode of action involving inhibition of cell proliferation, invasion and migration, metastasis and tumour growth, and induction of apoptotic death in cancer cells...
January 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28074653/the-essential-medicinal-chemistry-of-curcumin
#2
Kathryn M Nelson, Jayme L Dahlin, Jonathan Bisson, James Graham, Guido F Pauli, Michael A Walters
Curcumin is a constituent (up to ∼5%) of the traditional medicine known as turmeric. Interest in the therapeutic use of turmeric and the relative ease of isolation of curcuminoids has led to their extensive investigation. Curcumin has recently been classified as both a PAINS (pan-assay interference compounds) and an IMPS (invalid metabolic panaceas) candidate. The likely false activity of curcumin in vitro and in vivo has resulted in >120 clinical trials of curcuminoids against several diseases. No double-blinded, placebo controlled clinical trial of curcumin has been successful...
January 11, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28070064/rapid-classification-of-turmeric-based-on-dna-fingerprint-by-near-infrared-spectroscopy-combined-with-moving-window-partial-least-squares-discrimination-analysis
#3
Sumaporn Kasemsumran, Nattaporn Suttiwijitpukdee, Vichein Keeratinijakal
In this research, near-infrared (NIR) spectroscopy in combination with moving window partial least squares-discrimination analysis (MWPLS-DA) was utilized to discriminate the variety of turmeric based on DNA markers, which correlated to the quantity of curcuminoid. Curcuminoid was used as a marker compound in variety identification due to the most pharmacological properties of turmeric possessed from it. MWPLS-DA optimized informative NIR spectral regions for the fitting and prediction to {-1/1}-coded turmeric varieties, indicating variables in the development of latent variables in discrimination analysis...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28068085/cyclocurcumin-an-antivasoconstrictive-constituent-of-curcuma-longa-turmeric
#4
Keunyoung Kim, Jung-Jun Kim, Yeryeon Jung, Ji-Yoon Noh, Ahmed Shah Syed, Chul Young Kim, Moo-Yeol Lee, Kyung-Min Lim, Ok-Nam Bae, Jin-Ho Chung
Despite the increasing attention on the therapeutic potential of Curcuma longa (turmeric), the biological activities of curcuminoids other than curcumin are not well understood. Here, we investigated antivasoconstrictive activities of C. longa extract and its ingredients using freshly isolated rat aortic rings. C. longa extract significantly suppressed agonist-stimulated vasoconstriction, and cyclocurcumin was found to be the most potent (IC50 against phenylephrine-induced vasoconstriction: 14.9 ± 1.0 μM) among the 10 tested ingredients including four curcuminoids...
January 9, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28053883/curcumin-reverses-neurochemical-histological-and-immuno-histochemical-alterations-in-the-model-of-global-brain-ischemia
#5
Glaura Fernandes Teixeira de Alcântara, Eudes Simões-Neto, Giovany Michely Pinto da Cruz, Maria Elizabeth Pereira Nobre, Kelly Rose Tavares Neves, Geanne Matos de Andrade, Gerly Anne de Castro Brito, Glauce Socorro de Barros Viana
Curcumin, a curcuminoid from Curcuma longa, presents antioxidant and anti-inflammatory actions and, among pathological changes of cerebral ischemic injury, inflammation is an important one. The objectives were to study the neuroprotective action of curcumin, in a model of global ischemia. Male Wistar rats (sham-operated, ischemic untreated and ischemic treated with curcumin, 25 or 50 mg/kg, p.o.) were anesthesized and their carotid arteries occluded, for 30 min. The SO group had the same procedure, except for carotid occlusion...
January 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/28051318/room-temperature-coupling-decarboxylation-reaction-of-alpha-oxocarboxylates-with-alpha-bromoketones-solvent-controlled-regioselectivity-for-1-2-and-1-3-diketones
#6
Zhen He, Xiaotian Qi, Zhijie She, Yinsong Zhao, Shiqing Li, Junbin Tang, Ge Gao, Yu Lan, Jingsong You
A transition-metal-free and room-temperature coupling/decarboxylation reaction between α-oxocarboxylates and α-bromoketones is reported herein. It represents the first mild and regioselective synthesis of either 1,2- or 1,3-diketones from the same starting materials.. Notably, the regioselectivity is simply controlled by solvents. The preliminary experimental data and DFT calculations suggest sequential Darzens-type coupling, alkaline hydrolysis, KOH-promoted oxirane opening and decarboxylation in one pot...
January 4, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28036082/retro-curcuminoids-as-mimics-of-dehydrozingerone-and-curcumin-synthesis-nmr-x-ray-and-cytotoxic-activity
#7
Marco A Obregón-Mendoza, María Mirian Estévez-Carmona, Simón Hernández-Ortega, Manuel Soriano-García, María Teresa Ramírez-Apan, Laura Orea, Hugo Pilotzi, Dino Gnecco, Julia Cassani, Raúl G Enríquez
Curcumin and its derivatives have been extensively studied for their remarkable medicinal properties, and their chemical synthesis has been an important step in the optimization of well-controlled laboratory production. A family of new compounds that mimic the structure of curcumin and curcuminoids, here named retro-curcuminoids (7-14), was synthesized and characterized using 1D ¹H- and (13)C-NMR, IR, and mass spectrometry; the X-ray structure of 7, 8, 9, 10, 12, 13, and 14 are reported here for the first time...
December 29, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28004737/investigating-the-neuroprotective-effects-of-turmeric-extract-structural-interactions-of-%C3%AE-amyloid-peptide-with-single-curcuminoids
#8
Rosario Randino, Manuela Grimaldi, Marco Persico, Augusta De Santis, Elena Cini, Walter Cabri, Antonella Riva, Gerardino D'Errico, Caterina Fattorusso, Anna Maria D'Ursi, Manuela Rodriquez
A broad biophysical analysis was performed to investigate the molecular basis of the neuroprotective action of Curcuma longa extracts in Alzheimer's disease. By combining circular dichroism and electron paramagnetic resonance experiments with molecular modeling calculations, the minor components of Curcuma longa extracts, such as demethoxycurcumin (2, DMC), bisdemethoxycurcumin (3, BDMC) and cyclocurcumin (4, CYC), were analyzed in a membrane environment mimicking the phospholipid bilayer. Our study provides the first evidence on the relative role of single curcuminoids interacting with Aβ-peptide...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27987946/lactoferrin-coated-polysaccharide-nanoparticles-based-on-chitosan-hydrochloride-hyaluronic-acid-peg-for-treating-brain-glioma
#9
Yurui Xu, Sajid Asghar, Liu Yang, Hongying Li, Zhilin Wang, Qineng Ping, Yanyu Xiao
Curcuminoid (Cur) loaded polysaccharide nanoformulations with blood-brain barrier (BBB) penetration and brain targeting properties, based on hyaluronic acid (HA) and chitosan hydrochloride (CSH) (Lf-Cur-PSNPs) were developed as a novel delivery system for malignant glioma. Formulations were investigated for physicochemical characteristics, cytotoxicity, uptake, and BBB penetration. The results showed that LfM-Cur-PSNPs (concentration of Lf was 0.5mg/mL) were preferentially taken up by brain capillary endothelial cells than Cur-PSNPs at any time...
February 10, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/27935709/physical-and-chemical-stability-of-curcumin-in-aqueous-solutions-and-emulsions-impact-of-ph-temperature-and-molecular-environment
#10
Mahesh Kharat, Zheyuan Du, Guodong Zhang, David Julian McClements
The utilization of curcumin as a nutraceutical in food and supplement products is often limited because of its low-water solubility, poor chemical stability, and low oral bioavailability. This study examined the impact of pH, storage temperature, and molecular environment on the physical and chemical stability of pure curcumin in aqueous solutions and in oil-in-water emulsions. Unlike naturally occurring curcuminoid mixtures (that contain curcumin, demethoxy-curcumin and bisdemethoxy-curcumin), pure curcumin was highly unstable to chemical degradation in alkaline aqueous solutions (pH ≥ 7...
December 9, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27928704/antioxidant-effects-of-curcuminoids-in-patients-with-type-2-diabetes-mellitus-a-randomized-controlled-trial
#11
Yunes Panahi, Nahid Khalili, Ebrahim Sahebi, Soha Namazi, Maryam Saberi Karimian, Muhammed Majeed, Amirhossein Sahebkar
BACKGROUND: Oxidative stress has a key role in the pathogenesis of type II diabetes mellitus (T2DM) and its vascular complications. Antioxidant therapy has been suggested as a potential approach to blunt T2DM development and progression. The aim of this study was to assess the effects of supplementation with curcuminoids, which are natural polyphenolics from turmeric, on oxidative indices in diabetic individuals. METHODS: In this randomized double-blind placebo-controlled trial, 118 subjects with T2DM were randomized to curcuminoids (1000 mg/day co-administered with piperine 10 mg/day) or matching placebo for a period of 8 weeks...
December 7, 2016: Inflammopharmacology
https://www.readbyqxmd.com/read/27892863/nutrigenomic-activity-of-plant-derived-compounds-in-health-and-disease-results-of-a-dietary-intervention-study-in-dog
#12
Sandy Sgorlon, Bruno Stefanon, Misa Sandri, Monica Colitti
The study was conducted to investigate the effects of dietary administrations of four nutraceuticals in dogs. Seventy four dogs were enrolled in the trials, 24 healthy dogs were fed with a control diet (CT) and the experimental groups received for 60days the same diet supplemented with nutraceuticals, namely Echinacea angustifolia (EA, 0.10mg/kg live weight as echinacoside; 14 dogs), Vaccinium myrtillus (VM, 0.20mg/kg live weight as anthocyanidin, 13 dogs), Curcuma longa (CL, 6.60mg/kg live weight as curcumin, 18 dogs with arthrosis), and Sylibum marianum (SM, 1...
December 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27843113/synthesis-and-biological-assessment-of-novel-n-hydroxy-methoxy-alkyl-%C3%AE-enaminone-curcuminoids
#13
Atiruj Theppawong, Rob De Vreese, Lore Vannecke, Charlotte Grootaert, John Van Camp, Matthias D'hooghe
Curcumin, a natural compound extracted from the rhizomes of Curcuma Longa, is known to display pronounced anticancer activity but lacks good pharmacokinetic properties. In that respect, augmenting the water solubility by structural modification of the curcumin scaffold may result in improved bioavailability and pharmacokinetics. A possible scaffold modification, especially important for this study, concerns the imination of the labile β-diketone moiety in curcumin. Previous work revealed that novel N-alkyl β-enaminones showed a similar water solubility as compared to curcumin, accompanied by a stronger anti-proliferative activity...
October 24, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27829316/investigation-of-the-binding-interactions-of-bisdemethoxycurcumin-diacetylcurcumin-and-diacetylbisdemethoxycurcumin-with-bovine-%C3%AE-lactalbumin-by-experimental-and-theoretical-analysis
#14
Fakhrossadat Mohammadi, Marzieh Moeeni
It was reported that bovine α-lactalbumin (BLA) as an important whey protein can be utilized as valuable vehicle for metal ions. The goal of this study was to investigate the interaction of BLA with bisdemethoxycurcumin (BDMC), Diacetylcurcumin (DAC), and diacetylbisdemethoxycurcumin (DABC) as three bioactive compounds by fluorescence quenching measurements and docking studies. It was observed that these ligands come closer to tryptophan residues and quench their emission without any change in their micro region polarity...
December 1, 2016: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/27804972/turmeric-powder-and-its-derivatives-from-curcuma-longa-rhizomes-insecticidal-effects-on-cabbage-looper-and-the-role-of-synergists
#15
Wagner de Souza Tavares, Yasmin Akhtar, Gabriel Luiz Padoan Gonçalves, José Cola Zanuncio, Murray B Isman
Curcuma longa has well-known insecticidal and repellent effects on insect pests, but its impact on Trichoplusia ni is unknown. In this study, the compound ar-turmerone, extracted and purified from C. longa rhizomes, was identified, and its insecticidal effects, along with turmeric powder, curcuminoid pigments and crude essential oil were evaluated against this important agricultural pest. The role of natural (sesamol and piperonal) and synthetic [piperonyl butoxide (PBO)] synergists under laboratory and greenhouse conditions were also evaluated...
November 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27801454/reversibility-of-the-thia-michael-reaction-of-cytotoxic-c5-curcuminoid-and-structure-activity-relationship-of-bis-thiol-adducts-thereof
#16
Aki Kohyama, Michihiro Fukuda, Shunsuke Sugiyama, Hiroyuki Yamakoshi, Naoki Kanoh, Chikashi Ishioka, Hiroyuki Shibata, Yoshiharu Iwabuchi
C5-curcuminoids [a.k.a. bis(arylmethylidene)acetones] are curcumin analogues bearing a reactive cross-conjugated dienone structure essential for eliciting cytotoxicity. To gain insight into the mode of action of C5-curcuminoids, we investigated the reversibility of the thia-Michael reaction of 1,5-bis(3,5-bis(methoxymethoxy)phenyl)-1,4-pentadiene-3-one, named GO-Y030 which is the most potent cytotoxic C5-curcuminoid, using spectroscopic methods. A panel of GO-Y030-bis-thiol-adducts were synthesized and the structure-reactivity relationship regarding the retro thia-Michael reaction as well as the cell growth inhibitory activity against human colon cancer HCT116 were evaluated...
December 7, 2016: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/27779739/cardioprotective-potential-of-curcumin-against-norepinephrine-induced-cell-death-a-microscopic-study
#17
C Manghani, A Gupta, V Tripathi, V Rani
Cardiomyopathy and associated heart failure continues to be one of the most severe complications that threaten a large population. Curcumin, one of the three curcuminoids of the spice turmeric, is very well known for a multitude of health benefits and functions. Norepinephrine (NE), a catecholamine and also a stress hormone may cause the cardiomyocytes to develop increased sensitivity to death with its increasing concentrations. In this study, we investigated the cardioprotective effect of curcumin in NE-induced cardiac apoptosis using several fluorescent and nonfluorescent microscopic techniques like DAPI, PI, Giemsa, PicroSirius and TUNEL...
October 25, 2016: Journal of Microscopy
https://www.readbyqxmd.com/read/27765246/investigation-by-response-surface-methodology-of-the-combined-effect-of-ph-and-composition-of-water-methanol-mixtures-on-the-stability-of-curcuminoids
#18
Angelo Antonio D'Archivio, Maria Anna Maggi
Response surface methodology, coupled to a full factorial three-level experimental design, was applied to investigate the combined influence of pH (between 7.0 and 8.6) and composition of methanol-water mixtures (between 30 and 70% v/v of methanol content) on the stability of curcumin and its analogues demethoxycurcumin and bisdemethoxycurcumin. The response plots revealed that addition of methanol noticeably improved the stability of curcuminoids, this effect being both pH- and structure-dependent. In the central point of the experimental domain, half-life times of curcumin, demethoxycurcumin and bisdemethoxycurcumin were 3...
March 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27761752/a3k2a3-induced-apoptotic-cell-death-of-leishmania-amazonensis-occurs-through-caspase-and-atp-dependent-mitochondrial-dysfunction
#19
Francielle Pelegrin Garcia, Jean Henrique da Silva Rodrigues, Zia Ud Din, Edson Rodrigues-Filho, Tânia Ueda-Nakamura, Rachel Auzély-Velty, Celso Vataru Nakamura
Leishmaniasis is a neglected tropical disease that affects millions of people worldwide. Current therapies mainly rely on antimonial drugs that are inadequate because of their high toxicity and increased drug resistance. An urgent need exists to discover new, more effective, more affordable, and more target-specific drugs. Pathways that are associated with apoptosis-like cell death have been identified in unicellular eukaryotes, including protozoan parasites. In the present study, we studied the mechanism of cell death that is induced by A3K2A3 against L...
October 19, 2016: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/27747716/yellow-feet-in-a-patient-with-breast-and-thyroid-carcinoma-due-to-oral-intake-of-turmeric
#20
Liran Horev, Yuval Ramot, Laurent Klapholz
Yellow discoloration of the skin may be caused by several etiologies, including jaundice, hypervitaminosis, drug reaction or chemical exposure. Herein we describe a 68-year-old woman with a history of breast and thyroid carcinoma, presenting with a yellow discoloration of her soles, after ingestion of one capsule a day of turmeric root extract (Bluebonnet Turmeric Root, 500 mg, Vcap), taken for its anti-cancer properties, for 4 months. After drug cessation, the yellow hue disappeared completely. A Naranjo assessment score of 5 was obtained, indicating a probable relationship between the patient's symptom and her use of the drug...
December 2015: Drug Safety—Case Reports
keyword
keyword
62714
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"