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Piperine

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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
#1
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 CUR as a feasible therapeutic agent. Piperine (PIP) has been reported to enhance the bioavailability of CUR, but the underlying mechanism remains poorly understood. In an attempt to find the mechanism by which PIP enhances the bioavailability of CUR, dosage ratio (CUR: PIP) and PIP pre-treatment are hypothesized as key factors for bioavailability improvement in this combination...
November 23, 2016: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/27875748/piperine-attenuates-lipopolysaccharide-lps-induced-inflammatory-responses-in-bv2-microglia
#2
Chen Wang-Sheng, An Jie, Li Jian-Jun, Hong Lan, Xing Zeng-Bao, Li Chang-Qing
Piperine, the chief alkaloid isolated from Piper nigrum, has been known to have anti-inflammatory effect. However, the effects of piperine on neuroinflammation have not been reported. In the present study, we evaluated the effects of piperine on neuroinflammation in BV2 microglia and investigated the molecular mechanism. The results showed that piperine significantly inhibited LPS-induced TNF-α, IL-6, IL-1β, and PGE2 production in BV2 cells. Western blot analysis showed that piperine dose-dependently inhibited LPS-induced NF-κB activation...
November 19, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27862930/piperine-inhibits-abca1-degradation-and-promotes-cholesterol-efflux-from-thp-1-derived-macrophages
#3
Limei Wang, Veronika Palme, Susanne Rotter, Nicole Schilcher, Malsor Cukaj, Dongdong Wang, Angela Ladurner, Elke H Heiss, Herbert Stangl, Verena M Dirsch, Atanas G Atanasov
SCOPE: Increased macrophage cholesterol efflux is considered to have anti-atherosclerotic effect counteracting cardiovascular disease. The principle pungent ingredient of the fruits of Piper nigrum, piperine, is identified in this study as a cholesterol efflux (ChE) inducer in THP-1-derived macrophages, and mechanisms underlying this effect are explored. METHODS AND RESULTS: Without affecting cell viability, piperine concentration-dependently enhances ChE in THP-1-derived macrophages from 25 to 100 μM...
November 15, 2016: Molecular Nutrition & Food Research
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
#4
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...
November 16, 2016: Inflammopharmacology
https://www.readbyqxmd.com/read/27821437/curcumin-piperine-and-capsaicin-a-comparative-study-of-spice-mediated-inhibition-of-human-cytochrome-p450-isozyme-activities
#5
Suhaili Shamsi, Huong Tran, Renee Siok Jin Tan, Zee Jian Tan, Lee Yong Lim
Inhibition of the cytochrome P450 (CYP) enzymes has been shown to enhance the metabolism of drugs that are CYP 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 CYP enzymes, but the selection of which SC to be prioritised for further development as adjuvant will depend on the ranking order of inhibitory potential of the SCs on specific CYP isozymes. This paper aimed to utilise common human recombinant enzyme platforms to provide a comparative evaluation of the inhibitory activities of CUR, PIP and CAP on the principal drug-metabolising CYP enzymes...
November 7, 2016: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/27812336/piperine-suppresses-pyroptosis-and-interleukin-1%C3%AE-release-upon-atp-triggering-and-bacterial-infection
#6
Yi-Dan Liang, Wen-Jing Bai, Chen-Guang Li, Li-Hui Xu, Hong-Xia Wei, Hao Pan, Xian-Hui He, Dong-Yun Ouyang
Piperine is a phytochemical present in black pepper (Piper nigrum Linn) and other related herbs, possessing a wide array of pharmacological activities including anti-inflammatory effects. Previously, we demonstrated that piperine has therapeutic effects on bacterial sepsis in mice, but the underlying mechanism has not been fully elucidated. In this study, we aimed to investigate the influences of piperine on pyroptosis in murine macrophages. The results showed that piperine dose-dependently inhibited ATP-induced pyroptosis, thereby suppressing interleukin-1β (IL-1β) or high mobility group box-1 protein (HMGB1) release in LPS-primed bone marrow-derived macrophages and J774A...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27809242/antigenotoxic-effect-of-piperine-in-broiler-chickens-intoxicated-with-aflatoxin-b1
#7
Verônica da Silva Cardoso, Alane Beatriz Vermelho, Cristina Amorim Ribeiro de Lima, Jéssica Mendes de Oliveira, Marco Edilson Freire de Lima, Lúcia Helena Pinto da Silva, Glória Maria Direito, Maria das Graças Miranda Danelli
Piperine is an abundant amide extracted from black pepper seeds which has been shown to have protective effects against cytotoxic and genotoxic carcinogenesis induced by certain chemical carcinogens and aflatoxin B₁ (AFB₁) in vitro. The aim of this work was to study, in vivo, the antigenotoxic potential of feed-added piperine on broiler chickens experimentally intoxicated with AFB₁, using micronucleus and comet assays. The antigenotoxicity assessment of 9-day-old chicks was performed on a total of 60 chickens divided into four groups of 15 broilers each: (C) control, (P) 60 mg·piperine kg(-1) feed, (A) 0...
October 31, 2016: Toxins
https://www.readbyqxmd.com/read/27805329/role-of-risorine-in-the-treatment-of-drug-susceptible-pulmonary-tuberculosis-a-pilot-study
#8
Agam Vora, Sanjay Patel, Kamlesh Patel
OBJECTIVE: To study the efficacy and tolerability of Risorine Capsule (A fixed dose combination of Rifampicin 200 mg + INH 300 mg + Piperine 10 mg) therapy in the treatment of drug-susceptible pulmonary tuberculosis patients who developed GI intolerance with standard WHO anti TB regimen. METHODS: 33 patients with pulmonary tuberculosis were treated with one Risorine kit, daily consisting of one capsule of Risorine, one tablet of ethambutol (800 mg) and two tablets of Pyrazinamide 750 mg each, for first two months of therapy...
November 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27799519/piperine-s-mitigation-of-obesity-and-diabetes-can-be-explained-by-its-up-regulation-of-the-metabolic-rate-of-resting-muscle
#9
Leonardo Nogara, Nariman Naber, Edward Pate, Marcella Canton, Carlo Reggiani, Roger Cooke
We identify a target for treating obesity and type 2 diabetes, the consumption of calories by an increase in the metabolic rate of resting skeletal muscle. The metabolic rate of skeletal muscle can be increased by shifting myosin heads from the super-relaxed state (SRX), with a low ATPase activity, to a disordered relaxed state (DRX), with a higher ATPase activity. The shift of myosin heads was detected by a change in fluorescent intensity of a probe attached to the myosin regulatory light chain in skinned skeletal fibers, allowing us to perform a high-throughput screen of 2,128 compounds...
November 15, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27776366/effect-of-piperine-on-the-metabolism-and-pharmacokinetics-of-carbamazepine-in-healthy-volunteers
#10
S K Bedada, R Appani, P K Boga
Carbamazepine (CBZ) is a widely used antiepileptic drug with narrow therapeutic window and it may be prone to drug interactions. The purpose of present study was to investigate the effect of PIP on metabolism and pharmacokinetics of CBZ in healthy volunteers. An open-label, 2 period, sequential study was conducted in 12 healthy volunteers. PIP 20 mg was administered once daily for 10 days during treatment phase. A single dose of CBZ 200 mg was administered during control and after treatment phases under fasting conditions...
October 24, 2016: Drug Research
https://www.readbyqxmd.com/read/27765964/properties-and-storage-stability-of-whey-protein-edible-film-with-spice-powders
#11
Apisada Ket-On, Natkritta Pongmongkol, Anongnat Somwangthanaroj, Theeranun Janjarasskul, Kanitha Tananuwong
The impact of spice powders on physical, mechanical, thermal and barrier properties, and on storage stability, of whey protein isolate (WPI)-based films was determined. Films with added spices were prepared from casting solution containing 10 % (w/w) heat-denatured WPI, glycerol (WPI:glycerol of 3:2 w/w), sodium chloride (0.4 g/100 g solution), garlic and pepper powders (≤3 g each/100 g solution). Water activity (aw) of all films was 0.53-0.57. Addition of spice powders increased thickness, darkness and yellowness of the WPI films...
July 2016: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/27765370/resveratrol-piperine-and-apigenin-differ-in-their-nadph-oxidase-inhibitory-and-reactive-oxygen-species-scavenging-properties
#12
Scott Whitehouse, Pei-Lin Chen, Anna L Greenshields, Mat Nightingale, David W Hoskin, Karen Bedard
BACKGROUND: Many plant-derived chemicals have been studied for their potential benefits in ailments including inflammation, cancer, neurodegeneration, and cardiovascular disease. The health benefits of phytochemicals are often attributed to the targeting of reactive oxygen species (ROS). However, it is not always clear whether these agents act directly as antioxidants to remove ROS, or whether they act indirectly by blocking ROS production by enzymes such as NADPH oxidase (NOX) enzymes, or by influencing the expression of cellular pro- and anti- oxidants...
November 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27765227/impact-of-blanching-sweating-and-drying-operations-on-pungency-aroma-and-color-of-piper-borbonense
#13
M Weil, A Shum Cheong Sing, J M Méot, R Boulanger, P Bohuon
Low pungency, high aromatic potential and red color, give to Piper borbonense its originality when compared to Piper nigrum. Effects of blanching, sweating and drying on these characteristics were assessed. The three operations had no impact on the concentration of piperine and essential oil but affected the composition of essential oil slightly and considerably affected the color of the pepper. The "wet process", including blanching, sweating and drying, had the largest impact on the composition of aroma, increasing para-cymene content by 89% and reducing safrole content by 33% in dried pepper compared to fresh...
March 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27756948/comparative-evaluation-of-nephroprotective-potential-of-resveratrol-and-piperine-on-nephrotic-balb-c-mice
#14
Rahul Motiram Kakalij, B Dinesh Kumar, Prakash Vamanrao Diwan
OBJECTIVE: The objective of this study was to evaluate the nephroprotective potential of resveratrol and piperine at same dose on cationic bovine serum albumin (cBSA) induced immune complex glomerulonephritis (ICGN) in BALB/c mice. MATERIALS AND METHODS: Female BALB/c mice were divided into five groups. Group I served as normal control (complete Freund's adjuvant + Saline). Two weeks later, Groups II, III, IV, and V were administered cBSA (13 mg/kg) via the caudal vein 3 times/week every alternative day for 6 weeks to induce ICGN...
July 2016: Indian Journal of Pharmacology
https://www.readbyqxmd.com/read/27756602/synergistic-effect-of-piperine-and-paclitaxel-on-cell-fate-via-cyt-c-bax-bcl-2-caspase-3-pathway-in-ovarian-adenocarcinomas-skov-3-cells
#15
Manish Kumar Pal, Shyama Pyari Jaiswar, Ajeet Kumar Srivastav, Shruti Goyal, Ashish Dwivedi, Ankit Verma, Jyoti Singh, Anumesh Kumar Pathak, Pushpa Lata Sankhwar, Ratan Singh Ray
Ovarian cancer is fourth most common and lethal among all gynecologic malignancies. The chemotherapy usually requires in all stages of ovarian cancer but drugs have several side effects. We hypothesized that use of combination therapy of paclitaxel (PTX) and phytochemical piperine (PIP) may reduce the PTX dose as well as toxicity.The human ovarian adenocarcinomas SKOV3 cell treated with PTX-5nM and PIP-10µM after determination of IC50 by MTT assay. Reactive oxygen species generation, mitochondrial membrane potential (MMP), DNA damage, cell death pathway markers as release of cyt-c, Bax/Bcl2-caspase-3 and cell cycle arrest were analyzed...
October 15, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27718606/comparative-effects-of-piperine-and-simvastatin-in-fat-accumulation-and-antioxidative-status-in-high-fat-induced-hyperlipidemic-rats
#16
Sakara Tunsophon, Krongkarn Chootip
The present study investigated the comparative effects of piperine (PIP) - the active ingredient of black and long peppers - and simvastatin (SIM) on hepatic steatosis in hyperlipidemic rats. Male Wistar rats were fed a cholesterol mixture daily by intragastric gavage for 8 weeks. Piperine was given by oral gavage 8 h after cholesterol feeding. The animals were divided into 4 groups: control, high fat (HF), high fat plus 40 mg PIP/kg, and high fat plus 2 mg SIM/kg. At the end of the treatment, liver cholesterol, triglyceride, thiobaribituric reacting substances, superoxide dismutase (SOD), serum aminotransferase (AST), and alanine transferase (ALT) were measured...
August 7, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/27686160/optimisation-of-a-naviglio-assisted-extraction-followed-by-determination-of-piperine-content-in-piper-longum-extracts
#17
Giulia Gigliarelli, Rita Pagiotti, Diana Persia, Maria Carla Marcotullio
Studies were made to increase the yield of piperine extraction using Naviglio Extractor® solid-liquid dynamic extractor (SLDE) from fruits of Piper longum. The effects of ratio w/v were investigated and optimised for the best method. The maximum yield of piperine (317.7 mg/g) from P. longum fruits was obtained in SLDE 1:50 ethanol extract. Extraction yields of piperine obtained from Soxhlet extraction, decotion (International Organization for Standardization) and conventional maceration extraction methods were found to be 233...
August 12, 2016: Natural Product Research
https://www.readbyqxmd.com/read/27671817/piperine-and-its-role-in-chronic-diseases
#18
Giuseppe Derosa, Pamela Maffioli, Amirhossein Sahebkar
Alkaloids include a family of naturally occurring chemical compounds containing mostly basic nitrogen atoms. Piperine is an alkaloid present in black pepper (Piper nigrum), one of the most widely used spices, in long pepper (Piper longum), and other Piper species fruits belonging to the family of Piperaceae. Piperine is responsible for the black pepper distinct biting quality. Piperine has many pharmacological effects and several health benefits, especially against chronic diseases, such as reduction of insulin-resistance, anti-inflammatory effects, and improvement of hepatic steatosis...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27670974/effect-of-piperine-on-cyp2e1-enzyme-activity-of-chlorzoxazone-in-healthy-volunteers
#19
Satish Kumar Bedada, Praveen Kumar Boga
1. The purpose of the present study was to investigate the effect of piperine (PIP) on CYP2E1 enzyme activity and pharmacokinetics of chlorzoxazone (CHZ) in healthy volunteers. 2. An open-label, two period, sequential study was conducted in 12 healthy volunteers. A single dose of PIP 20 mg was administered daily for 10 days during treatment phase. A single dose of CHZ 250 mg was administered during control and after treatment phases under fasting conditions. The blood samples were collected at predetermined time intervals after CHZ dosing and analyzed by HPLC...
November 16, 2016: Xenobiotica; the Fate of Foreign Compounds in Biological Systems
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
#20
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...
October 3, 2016: ACS Chemical Neuroscience
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