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https://www.readbyqxmd.com/read/28427563/neuroinflammation-in-alzheimer-s-disease-the-preventive-and-therapeutic-potential-of-polyphenolic-nutraceuticals
#1
Yousef Sawikr, Nagendra Sastry Yarla, Ilaria Peluso, Mohammad Amjad Kamal, Gjumrakch Aliev, Anupam Bishayee
Brain inflammation, characterized by increased microglia and astrocyte activation, increases during aging and is a key feature of neurodegenerative diseases, such as Alzheimer's disease (AD). In AD, neuronal death and synaptic impairment, induced by amyloid-β (Aβ) peptide, are at least in part mediated by microglia and astrocyte activation. Glial activation results in the sustained production of proinflammatory cytokines and reactive oxygen species, giving rise to a chronic inflammatory process. Astrocytes are the most abundant glial cells in the central nervous system and are involved in the neuroinflammation...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28413973/docking-related-survey-on-natural-product-based-new-monoamine-oxidase-inhibitors-and-their-therapeutic-potential
#2
Priyanka Dhiman, Neelam Malik, Anurag Khatkar
This is an exciting period for research on monoamine oxidase and its effects on central nervous system. As the current hitting-one-target therapeutic strategy has become quite inefficient for the treatment of various neurological disorders. The objective of this review is to identify and critically discuss the computational development of multi-target natural and related ligand-MAO protein docking approaches in the study of monoamine oxidase (MAO) enzymes. Computational development of the new compounds form natural and related synthetic origin, active as MAO inhibitors (MAOIs) were discussed in some detail...
April 14, 2017: Combinatorial Chemistry & High Throughput Screening
https://www.readbyqxmd.com/read/28344463/curcumin-and-piperine-supplementation-and-recovery-following-exercise-induced-muscle-damage-a-randomized-controlled-trial
#3
Barthélémy Delecroix, Abd Elbasset Abaïdia, Cédric Leduc, Brian Dawson, Grégory Dupont
The aim of this study was to analyze the effects of oral consumption of curcumin and piperine in combination on the recovery kinetics after exercise-induced muscle damage. Forty-eight hours before and following exercise-induced muscle damage, ten elite rugby players consumed curcumin and piperine (experimental condition) or placebo. A randomized cross-over design was performed. Concentric and isometric peak torque for the knee extensors, one leg 6 seconds sprint performance on a non-motorized treadmill, counter movement jump performance, blood creatine kinase concentration and muscle soreness were assessed immediately after exercise, then at 24h, 48h and 72h post-exercise...
March 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28314475/pharmacokinetic-based-study-on-lagged-stimulation-of-curcumae-longae-rhizoma-piper-nigrum-couplet-in-their-main-active-components-metabolism-using-uplc-ms-ms
#4
Zhao Chen, Dongmei Sun, Xiaoli Bi, Xiaohui Zeng, Wenhui Luo, Dake Cai, Qiaohuang Zeng, Aili Xu
BACKGROUND: Curcumae Longae Rhizoma is one of the commonly used traditional Chinese medicines, which has multiple biological activities such as relieving stagnation and stasis, pain alleviation, curing amenorrhea and wounds. However, its main active component-curcumin has poor absorption and very fast metabolism in body. To solve this problem, Piper nigrum was introduced for its ability to strengthen bioavailability of other compounds. PURPOSE: In most cases of TCM couplets, all ingredients were prepared and taken simultaneously, which in our opinion did not take full advantage of their interactions...
April 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28123572/solid-lipid-nanoparticles-with-tpgs-and-brij-78-a-co-delivery-vehicle-of-curcumin-and-piperine-for-reversing-p-glycoprotein-mediated-multidrug-resistance-in-vitro
#5
Jingling Tang, Hongyu Ji, Jinmei Ren, Mengting Li, Nannan Zheng, Linhua Wu
Multidrug resistance (MDR) is a main clinical hurdle for chemotherapy of cancer, and overexpression of P-glycoprotein (P-gp) is a key factor. In the present study, a new co-delivery system for reversing MDR was designed and developed. The system was composed of curcumin (Cur) and piperine (Pip) encapsulated in solid lipid nanoparticles (SLNs) with tocopheryl polyethylene glycol succinate (TPGS) and Brij 78 [(Cur+Pip)-SLNs]. TPGS and Brij 78 could sensitize MDR tumors by inhibiting the P-gp drug efflux system...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28117414/piperine-regulates-ucp1-through-the-ampk-pathway-by-generating-intracellular-lactate-production-in-muscle-cells
#6
Nami Kim, Miso Nam, Mi Sun Kang, Jung Ok Lee, Yong Woo Lee, Geum-Sook Hwang, Hyeon Soo Kim
This study characterizes the human metabolic response to piperine, a curcumin extract, and the details of its underlying molecular mechanism. Using (1)H-NMR-based metabolome analysis, we showed the metabolic effect of piperine on skeletal muscle and found that piperine increased the level of intracellular lactate, an important metabolic intermediate that controls expression of several genes involved in mitochondrial activity. Piperine also induced the phosphorylation of AMP-activated protein kinase (AMPK) and its downstream target, acetyl-CoA carboxylase (ACC), while additionally stimulating glucose uptake in an AMPK dependent manner...
January 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27882569/selective-reduction-in-the-expression-of-ugts-and-sults-a-novel-mechanism-by-which-piperine-enhances-the-bioavailability-of-curcumin-in-rat
#7
Xiaohui Zeng, Dake Cai, Qiaohuang Zeng, Zhao Chen, Guoping Zhong, Juncheng Zhuo, Haining Gan, Xuejun Huang, Ziming Zhao, Nan Yao, Dane Huang, Chengzhe Zhang, Dongmei Sun, Yuxing Chen
Curcumin (CUR) is known to exert numerous health-promoting effects in pharmacological studies, but its low bioavailability hinders the development of curcumin as a feasible therapeutic agent. Piperine (PIP) has been reported to enhance the bioavailability of curcumin, but the underlying mechanism remains poorly understood. In an attempt to find the mechanism by which piperine enhances the bioavailability of curcumin, the dosage ratio (CUR: PIP) and pre-treatment with piperine were hypothesized as key factors for improving the bioavailability in this combination...
January 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/27853890/neuroprotective-potential-of-curcumin-in-combination-with-piperine-against-6-hydroxy-dopamine-induced-motor-deficit-and-neurochemical-alterations-in-rats
#8
Shamsher Singh, Puneet Kumar
AIM AND OBJECTIVE: 6-hydroxy dopamine (6-OHDA) is a neurotoxin which on intranigral administration produces severe nigrostriatal damage with motor and cognitive deficit in animals. Curcumin (CMN) in combination with bioenhancer piperine (PP) in 6-hydroxydopamine-induced Parkinsonian rats was used to investigate the antioxidant, neuromodulatory and neuroprotective mechanisms. MATERIALS AND METHODS: Hemi-Parkinson's rat model was developed with intranigral infusion of 6-OHDA (8 μg/2 μl, once, unilaterally), treatment with CMN (25 and 50 mg/kg) and combination of PP (2...
February 2017: Inflammopharmacology
https://www.readbyqxmd.com/read/27821437/curcumin-piperine-and-capsaicin-a-comparative-study-of-spice-mediated-inhibition-of-human-cytochrome-p450-isozyme-activities
#9
Suhaili Shamsi, Huong Tran, Renee Seok Jin Tan, Zee Jian Tan, Lee Yong Lim
Inhibition of cytochrome P450 (P450) enzymes (CYP) has been shown to lower the metabolism of drugs that are P450 substrates and to consequently alter their pharmacokinetic profiles. Curcumin (CUR), piperine (PIP), and capsaicin (CAP) are spice components (SC) that inhibit the activities of a range of P450 enzymes, but the selection of which SC to be prioritized for further development as an adjuvant will depend on the ranking order of the inhibitory potential of the SCs on specific P450 isozymes. We used common human recombinant enzyme platforms to provide a comparative evaluation of the inhibitory activities of CUR, PIP, and CAP on the principal drug-metabolizing P450 enzymes...
January 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/27642670/delivery-of-dual-drug-loaded-lipid-based-nanoparticles-across-the-blood-brain-barrier-impart-enhanced-neuroprotection-in-a-rotenone-induced-mouse-model-of-parkinson-s-disease
#10
Paromita Kundu, Manasi Das, Kalpalata Tripathy, Sanjeeb K Sahoo
Parkinson's disease (PD) is the most widespread form of dementia where there is an age related degeneration of dopaminergic neurons in the substantia nigra region of the brain. Accumulation of α-synuclein (αS) protein aggregate, mitochondrial dysfunction, oxidative stress, and neuronal cell death are the pathological hallmarks of PD. In this context, amalgamation of curcumin and piperine having profound cognitive properties, and antioxidant activity seems beneficial. However, the blood-brain barrier (BBB) is the major impediment for delivery of neurotherapeutics to the brain...
December 21, 2016: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/27638428/curcumin-the-golden-nutraceutical-multitargeting-for-multiple-chronic-diseases
#11
REVIEW
Ajaikumar B Kunnumakkara, Devivasha Bordoloi, Ganesan Padmavathi, Javadi Monisha, Nand Kishor Roy, Sahdeo Prasad, Bharat B Aggarwal
Curcumin, a yellow pigment in the Indian spice Turmeric (Curcuma longa), which is chemically known as diferuloylmethane, was first isolated exactly two centuries ago in 1815 by two German Scientists, Vogel and Pelletier. However, according to the pubmed database, the first study on its biological activity as an antibacterial agent was published in 1949 in Nature and the first clinical trial was reported in The Lancet in 1937. Although the current database indicates almost 9000 publications on curcumin, until 1990 there were less than 100 papers published on this nutraceutical...
September 17, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27529277/spices-for-prevention-and-treatment-of-cancers
#12
REVIEW
Jie Zheng, Yue Zhou, Ya Li, Dong-Ping Xu, Sha Li, Hua-Bin Li
Spices have been widely used as food flavorings and folk medicines for thousands of years. Numerous studies have documented the antioxidant, anti-inflammatory and immunomodulatory effects of spices, which might be related to prevention and treatment of several cancers, including lung, liver, breast, stomach, colorectum, cervix, and prostate cancers. Several spices are potential sources for prevention and treatment of cancers, such as Curcuma longa (tumeric), Nigella sativa (black cumin), Zingiber officinale (ginger), Allium sativum (garlic), Crocus sativus (saffron), Piper nigrum (black pepper) and Capsicum annum (chili pepper), which contained several important bioactive compounds, such as curcumin, thymoquinone, piperine and capsaicin...
August 12, 2016: Nutrients
https://www.readbyqxmd.com/read/27343476/influence-of-piperine-and-quercetin-on-antidiabetic-potential-of-curcumin
#13
Ginpreet Kaur, Mihir Invally, Meena Chintamaneni
BACKGROUND: Curcumin is a nutraceutical obtained from the rhizomes of Curcuma longa with a significant medicinal value against numerous disorders. However, the potential cannot be completely exploited due to low in vivo bioavailability. Hence, in order to enhance the bioavailability of curcumin, we combined it with the bioavailability enhancers like piperine and quercetin. METHODS: The present study was targeted to explore the antidiabetic potential of combinatorial extract of curcumin with piperine and quercetin (CPQ) in streptozotocin- and nicotinamide-induced diabetic rats...
September 1, 2016: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/27306423/transcriptomic-profiling-of-curcumin-treated-human-breast-stem-cells-identifies-a-role-for-stearoyl-coa-desaturase-in-breast-cancer-prevention
#14
Justin A Colacino, Sean P McDermott, Maureen A Sartor, Max S Wicha, Laura S Rozek
Curcumin is a potential agent for both the prevention and treatment of cancers. Curcumin treatment alone, or in combination with piperine, limits breast stem cell self-renewal, while remaining non-toxic to normal differentiated cells. We paired fluorescence-activated cell sorting with RNA sequencing to characterize the genome-wide changes induced specifically in normal breast stem cells following treatment with these compounds. We generated genome-wide maps of the transcriptional changes that occur in epithelial-like (ALDH+) and mesenchymal-like (ALDH-/CD44+/CD24-) normal breast stem/progenitor cells following treatment with curcumin and piperine...
July 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27111639/quantum-chemical-and-docking-insights-into-bioavailability-enhancement-of-curcumin-by-piperine-in-pepper
#15
Vaishali M Patil, Sukanya Das, Krishnan Balasubramanian
We combine quantum chemical and molecular docking techniques to provide new insights into how piperine molecule in various forms of pepper enhances bioavailability of a number of drugs including curcumin in turmeric for which it increases its bioavailability by a 20-fold. We have carried out docking studies of quantum chemically optimized piperine structure binding to curcumin, CYP3A4 in cytochrome P450, p-Glycoprotein and UDP-glucuronosyltransferase (UGT), the enzyme responsible for glucuronosylation, which increases the solubility of curcumin...
May 26, 2016: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/26970969/piperine-augments-the-protective-effect-of-curcumin-against-lipopolysaccharide-induced-neurobehavioral-and-neurochemical-deficits-in-mice
#16
Ashok Jangra, Mohit Kwatra, Tavleen Singh, Rajat Pant, Pawan Kushwah, Yogita Sharma, Babita Saroha, Ashok Kumar Datusalia, Babul Kumar Bezbaruah
The aim of the present study was to investigate the protective effects of curcumin alone and in combination with piperine against lipopolysaccharide (LPS)-induced neurobehavioral and neurochemical deficits in the mice hippocampus. Mice were treated with curcumin (100, 200, and 400 mg/kg, p.o.) and piperine (20 mg/kg, p.o.) for 7 days followed by LPS (0.83 mg/kg, i.p.) administration. Animals exhibited anxiety and depressive-like phenotype after 3 and 24 h of LPS exposure, respectively. LPS administration increased the oxido-nitrosative stress as evident by elevated levels of malondialdehyde, nitrite, and depletion of glutathione level in the hippocampus...
June 2016: Inflammation
https://www.readbyqxmd.com/read/26828892/neuroprotective-activity-of-curcumin-in-combination-with-piperine-against-quinolinic-acid-induced-neurodegeneration-in-rats
#17
Shamsher Singh, Puneet Kumar
AIM: Quinolinic acid (QA) is an excitotoxin that induces Huntington's-like symptoms in animals and humans. Curcumin (CMN) is a well-known antioxidant but the major problem is its bioavailability. Therefore, the present study was designed to investigate the effect of CMN in the presence of piperine against QA-induced excitotoxic cell death in rats. MATERIAL AND METHODS: QA was administered intrastriatally at a dose of 200 nmol/2 µl saline, bilaterally. CMN (25 and 50 mg/kg/day, p...
2016: Pharmacology
https://www.readbyqxmd.com/read/26806041/neuroprotective-role-of-nanoparticles-against-alzheimer-s-disease
#18
REVIEW
Magisetty Obulesu, Magisetty Jhansilakshmi
BACKGROUND: Alzheimer's disease (AD) is a devastative neurodegenerative disorder with a complex etiology. Despite numerous novel nanotechnology methods targeted against cancer and neurodegenerative diseases such as AD in the past decade, several challenges impeded their success. OBJECTIVE: We ventured to circumvent these challenges by synthesizing redox nanoparticles (RNP) such as Nitroxide radical, 2,2,6,6 tetramethylpiperidinyl-N-oxyl (TEMPO). Piperine in association with RNP successfully scavenges reactive oxygen species (ROS)...
2016: Current Drug Metabolism
https://www.readbyqxmd.com/read/26610378/the-role-of-curcumin-administration-in-patients-with-major-depressive-disorder-mini-meta-analysis-of-clinical-trials
#19
REVIEW
Dalia Al-Karawi, Doaa Alem Al Mamoori, Yaman Tayyar
Major depression is a common, recurrent, and chronic disease that negatively affects the quality of life and increases the risk of mortality. Several studies have demonstrated that curcumin, the yellow-pigmented substance of the turmeric, possesses antidepressant properties. The aim of this review is to meta-analytically assess the antidepressant effect of curcumin in patients with major depressive disorders. We extensively searched the literature until August 2015. The random-effect model was used to calculate the pooled standardized difference of means (SMD)...
February 2016: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/26335572/combination-of-curcumin-and-piperine-prevents-formation-of-gallstones-in-c57bl6-mice-fed-on-lithogenic-diet-whether-npc1l1-srebp2-participates-in-this-process
#20
Yongnan Li, Min Li, Shuodong Wu, Yu Tian
BACKGROUND: A disruption of cholesterol homeostasis characterized by the physical-chemical imbalance of cholesterol solubility in bile often results in formation of cholesterol gallstones. Our earlier studies revealed that curcumin (1000 mg/kg) could prevent formation of gallstones. It has been proved that curcumin is poorly absorbed while piperine is a bioavailability-enhancer. Nevertheless, whether curcumin combined with piperine could enhance the effect of curcumin in preventing gallstones is still awaited...
2015: Lipids in Health and Disease
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