keyword
MENU ▼
Read by QxMD icon Read
search

propolis

keyword
https://www.readbyqxmd.com/read/28821452/pinocembrin-a-novel-histidine-decarboxylase-inhibitor-with-anti-allergic-potential-in-in-vitro
#1
Hamza Hanieh, Villianur Ibrahim Hairul Islam, Subramanian Saravanan, Muthiah Chellappandian, Kessavane Ragul, Arumugam Durga, Kaliyamoorthy Venugopal, Venugopal Senthilkumar, Palanisamy Senthilkumar, Krishnaraj Thirugnanasambantham
Pinocembrin (5, 7- dihydroxy flavanone) is the most abundant chiral flavonoid found in propolis, exhibiting antioxidant, antimicrobial and anti-inflammatory properties. However, the effect of Pinocembrin on allergic response is unexplored. Thus, current study aimed at investigating the effects of Pinocembrin on IgE-mediated allergic response in vitro. A special emphasis was directed toward histidine decarboxylase (HDC) and other pro-allergic and pro-inflammatory mediators. Preliminary studies, using a microbiological model of Klebsiella pneumoniae, provided first evidences that suggest Pinocembrin as a potential thermal stable inhibitor for HDC...
August 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28816359/chrysin-attenuates-progression-of-ovarian-cancer-cells-by-regulating-signaling-cascades-and-mitochondrial-dysfunction
#2
Whasun Lim, Soomin Ryu, Fuller W Bazer, Sung-Man Kim, Gwonhwa Song
Chrysin is mainly found in passion flowers, honey, and propolis acts as a potential therapeutic and preventive agent to inhibit proliferation and invasion of various human cancer cells. Although chrysin has anti-carcinogenic effects in several cancers, little is known about its functional roles in ovarian cancer which shows poor prognosis and chemoresistance to traditional therapeutic agents. In the present study, we investigated functional roles of chrysin in progression of ovarian cancer cells using ES2 and OV90 (clear cell and serous carcinoma, respectively) cell lines...
August 17, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28814983/honey-propolis-and-royal-jelly-a-comprehensive-review-of-their-biological-actions-and-health-benefits
#3
REVIEW
Visweswara Rao Pasupuleti, Lakhsmi Sammugam, Nagesvari Ramesh, Siew Hua Gan
BACKGROUND: There are several health benefits that honeybee products such as honey, propolis, and royal jelly claim toward various types of diseases in addition to being food. SCOPE AND APPROACH: In this paper, the effects of honey, propolis, and royal jelly on different metabolic diseases, cancers, and other diseases have been reviewed. The modes of actions of these products have also been illustrated for purposes of better understanding. KEY FINDINGS AND CONCLUSIONS: An overview of honey, propolis, and royal jelly and their biological potentials was highlighted...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28814374/from-bench-laboratory-to-bed-hospital-home-how-to-explore-effective-natural-and-synthetic-pak1-blockers-longevity-promoters-for-cancer-therapy
#4
REVIEW
Hiroshi Maruta, Mok-Ryeon Ahn
PAK family kinases are RAC/CDC42-activated kinases that were first found in a soil amoeba 4 decades ago, and 2 decades later, were discovered in mammals as well. Since then at least 6 members of this family have been identified in mammals. One of them called PAK1 has been best studied so far, mainly because it is essential not only for malignant cell growth and metastasis, but also for many other diseases/disorders such as diabetes (type 2), AD (Alzheimer's disease), hypertension, and a variety of inflammatory or infectious diseases, which definitely shorten our lifespan...
August 9, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28805735/dietary-propolis-ameliorates-dextran-sulfate-sodium-induced-colitis-and-modulates-the-gut-microbiota-in-rats-fed-a-western-diet
#5
Kai Wang, Xiaolu Jin, Mengmeng You, Wenli Tian, Richard K Le Leu, David L Topping, Michael A Conlon, Liming Wu, Fuliang Hu
Propolis is an important hive product and considered beneficial to health. However, evidence of its potential for improving gut health is still lacking. Here we use rats to examine whether dietary supplementation with propolis could be used as a therapy for ulcerative colitis. Rats were fed with a Western style diet alone (controls) or supplemented with different amounts of Chinese propolis (0.1%, 0.2%, and 0.3%) to examine effects on acute colitis induced by 3% dextran sulphate sodium (DSS) in drinking water...
August 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28805554/apitherapeutics-and-phage-loaded-nanofibers-as-wound-dressings-with-enhanced-wound-healing-and-antibacterial-activity
#6
Wessam A Sarhan, Hassan Me Azzazy
AIM: Develop green wound dressings which exhibit enhanced wound-healing ability and potent antibacterial effects. METHODS: Honey, polyvinyl alcohol, chitosan nanofibers were electrospun and loaded with bee venom, propolis and/or bacteriophage against the multidrug-resistant Pseudomonas aeruginosa and examined for their antibacterial, wound-healing ability and cytotoxicity. RESULTS: Among different formulations of nanofibers, honey, polyvinyl alcohol, chitosan-bee venom/bacteriophage exhibited the most potent antibacterial activity against all tested bacterial strains (Gram-positive and -negative strains) and achieved nearly complete killing of multidrug-resistant P...
September 2017: Nanomedicine
https://www.readbyqxmd.com/read/28802889/ameliorative-effect-of-propolis-supplementation-in-alleviating-bisphenol-a-toxicity-growth-performance-biochemical-variables-and-oxidative-stress-biomarkers-of-nile-tilapia-oreochromis-niloticus-l-fingerlings
#7
Heba S Hamed, Mohsen Abdel-Tawwab
Bisphenol-A (BPA) is one of the important pollutants in aquatic ecosystems and its detrimental effects on fish have a great concern. Propolis is a natural immune-stimulant that has various biological and pharmacological activities. Thus, its capability to alleviate the toxic effect of BPA on Nile tilapia, Oreochromis niloticus (L.) was assessed in a study based on a 2 × 2 factorial design with two levels of ethanolic extract of propolis (EEP) and two waterborne BPA concentrations in triplicates. Fish (33.9 ± 0...
August 9, 2017: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/28799756/caffeic-acid-phenethyl-ester-propolis-extract-ameliorates-insulin-resistance-by-inhibiting-jnk-and-nf-%C3%AE%C2%BAb-inflammatory-pathways-in-diabetic-mice-and-hepg2-cells-models
#8
Jia-Rui Nie, Ya-Ning Chang, Yujia Li, Yingjun Zhou, Jiawen Qin, Zhen Sun, Haibin Li
Caffeic acid phenethyl ester (CAPE), extracted from propolis, was evaluated the ameliorative effects on insulin resistance and identified the mechanisms, using noninsulin-dependent diabetes mellitus (NIDDM) model mice and insulin resistance (IR) model cells. After 5-week of CAPE supplementation, insulin sensitivity, hyperlipidemia, and peroxisome proliferator-activated receptor-α (PPAR-α) levels were improved in mice. Pro-inflammatory cytokines in serum and the expressions of tumour necrosis factor- alpha (TNF-α) mRNA in tissues were markedly down-regulated from CAPE-treated mice...
August 11, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28795524/resin-foraging-dynamics-in-varroa-destructor-infested-hives-a-case-of-medication-of-kin
#9
Michelina Pusceddu, Giannella Piluzza, Panagiotis Theodorou, Franco Buffa, Luca Ruiu, Simonetta Bullitta, Ignazio Floris, Alberto Satta
Social insects have evolved colony behavioral, physiological and organizational adaptations (social immunity) to reduce the risks of parasitization and/or disease transmission. The collection of resin from various plants and its use in the hive as propolis, is a clear example of behavioral defense. For Apis mellifera, an increased propolis content in the hive may correspond to variations in the microbial load of the colony and to a down-regulation of an individual bee's immune response. However, many aspects of such antimicrobial mechanism still need to be clarified...
August 10, 2017: Insect Science
https://www.readbyqxmd.com/read/28790461/anti-colon-cancer-effect-of-caffeic-acid-p-nitro-phenethyl-ester-in-vitro-and-in-vivo-and-detection-of-its-metabolites
#10
Hao Tang, Xiaofang Yao, Cong Yao, Xiaoyan Zhao, Hua Zuo, Zhubo Li
Caffeic acid phenethyl ester (CAPE), extracted from propolis, was proven to inhibit colon cancer. Caffeic acid p-nitro-phenethyl ester (CAPE-pNO2), a derivative of CAPE, was determined to be an anti-platelet agent and a protector of myocardial ischaemia with more potent effects. In the present study, CAPE-pNO2 showed stronger cytotoxic activity than CAPE. We revealed interactions between CAPE-pNO2 and experimental cells. CAPE-pNO2 induced apoptosis in HT-29 cells by up-regulating P53, cleaved-caspase-3, Bax, P38 and CytoC; CAPE-pNO2 also up-regulated P21(Cip1) and P27(Kip1) and down-regulated CDK2 and c-Myc to promote cell cycle arrest in G0/G1...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28790397/antioxidant-activity-of-quercetin-and-its-glucosides-from-propolis-a-theoretical-study
#11
Yan-Zhen Zheng, Geng Deng, Qin Liang, Da-Fu Chen, Rui Guo, Rong-Cai Lai
Among the multiple components of propolis, flavonoids contribute greatly to the antioxidant activities of propolis. Flavonoids mainly exist in the form of sugar-conjugated derivatives. Quercetin glycosides represent the predominant flavonoid fraction in propolis. In this work, density functional theory (DFT) calculations were applied to analyze the antioxidative properties of quercetin and its glucosides in the gas and in the liquid phase (ethanol, water). Three main antioxidant mechanisms, hydrogen atom transfer (HAT), single electron transfer followed by proton transfer (SET-PT) and sequential proton loss electron transfer (SPLET) were used to analyze the antioxidative capacity of the investigated compounds...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28783356/chemical-constituents-of-propolis-from-vietnamese-trigona-minor-and-their-antiausterity-activity-against-the-panc-1-human-pancreatic-cancer-cell-line
#12
Hai X Nguyen, Mai T T Nguyen, Nhan T Nguyen, Suresh Awale
The ethanol extract of propolis from the Vietnamese stingless bee Trigona minor possessed potent preferential cytotoxicity against PANC-1 human pancreatic cancer cells in nutrient-deprived medium, with a PC50 value of 14.0 μg/mL. Chemical investigation of this extract led to the isolation of 15 cycloartane-type triterpenoids, including five new compounds (1-5), and a lanostane-type triterpenoid. The structures of the new compounds were elucidated on the basis of NMR spectroscopic analysis. Among the isolated compounds, 23-hydroxyisomangiferolic acid B (5) and 27-hydroxyisomangiferolic acid (13) exhibited the most potent preferential cytotoxicity against PANC-1 human pancreatic cancer cells under nutrition-deprived conditions, with PC50 values of 4...
August 7, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28776672/mechanisms-involved-in-the-cytotoxic-action-of-brazilian-propolis-and-caffeic-acid-against-hep-2-cells-and-modulation-of-p-glycoprotein-activity
#13
Lívia M da Silva, Yahima Frión-Herrera, Ariane R Bartolomeu, Carolina Mendonça Gorgulho, José M Sforcin
OBJECTIVES: The effects of propolis and phenolic compounds (caffeic acid - Caf; dihydrocinnamic acid - Cin; p-coumaric acid - Cou) in the same quantity found in our propolis sample were investigated on human laryngeal epidermoid carcinoma (HEp-2) cells. METHODS: Cell viability, apoptosis/necrosis and cell cycle arrest, P53 and CASPASE-3 gene expression, generation of reactive oxygen species (ROS) and the ability of propolis to induce doxorubicin (DOX) efflux using a P-glycoprotein (P-gp) inhibitor (verapamil) were assayed...
August 4, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28772181/biomonitoring-status-and-source-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-using-honeybees-pine-tree-leaves-and-propolis
#14
Navid Kargar, Golnar Matin, Amir Abbas Matin, Hasan Baha Buyukisik
In this study, to identify and quantify the sources of airborne polycyclic aromatic hydrocarbons (PAHs), we gathered honeybee, pine tree leaf, and propolis samples to serve as bioindicators from five stations in the village of "Bozkoy" in the Aliaga industrial district of Izmir (Turkey) during April-May 2014. The PAH concentrations which measured by gas chromatography (GC) varied from 261.18 to 553.33 μg kg(-1) dry weight (dw) in honeybee samples, 138.57-853.67 μg kg(-1) dw in pine leaf samples, and 798...
July 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28767889/activity-of-brazilian-propolis-against-aeromonas-hydrophila-and-its-effect-on-nile-tilapia-growth-hematological-and-non-specific-immune-response-under-bacterial-infection
#15
Ricardo O Orsi, Vivian G Dos Santos, Luiz E Pezzato, Pedro L P F DE Carvalho, Caroline P Teixeira, Jakeline M A Freitas, Carlos R Padovani, Maria M P Sartori, Margarida M Barros
The effect of the ethanolic extract of propolis (EEP) on Aeromonas hydrophila was analyzed by determination of minimum inhibitory concentration (MIC). Then, the effects of crude propolis powder (CPP) on growth, hemato-immune parameters of the Nile tilapia, as well as its effects on resistance to A. hydrophila challenge were investigated. The CPP (0.5, 1.0, 1.5, 2.0, 2.5 and 3.0%) was added to the diet of 280 Nile tilapia (50.0 ± 5.7 g fish-1). Hemato-immune parameters were analyzed before and after the bacterial challenge...
July 31, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28761978/propolis-alleviates-concanavalin-a-induced-hepatitis-by-modulating-cytokine-secretion-and-inhibition-of-reactive-oxygen-species
#16
Fatma Mounieb, Laila Ramadan, El-Sayed Akool, Amany Balah
Viral hepatitis-induced oxidative stress accompanied by increased levels of transforming growth factor-β (TGF-β) and hepatic fibrosis are hallmarks of hepatitis C virus infection. The present study was designed to investigate the potential protective effect of propolis against liver injury induced by concanavalin A (Con A), a T-cell-dependent model that causes an immune-mediated hepatitis in a similar pattern to the one induced by viral infections. In the present study, rats were randomly divided into four groups...
July 31, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28755848/the-use-of-brazilian-propolis-for-discovery-and-development-of-novel-anti-inflammatory-drugs
#17
REVIEW
Marcelo Franchin, Irlan Almeida Freires, Josy Goldoni Lazarini, Bruno Dias Nani, Marcos Guilherme da Cunha, David Fernando Colón, Severino Matias de Alencar, Pedro Luiz Rosalen
Anti-Inflammatory drugs have been routinely used in the management of acute and chronic inflammatory conditions. Nevertheless, their undesirable side and adverse effects have encouraged the development of more selective, tolerable and efficacious drugs able to modulate the inflammatory process through distinct mechanisms than those of drugs currently available in the market, for instance, inhibition of leukocyte recruitment (chemotaxis, rolling, adhesion and transmigration). Natural products, including Brazilian propolis, have been considered a rich source of anti-inflammatory molecules due to a very complex phytochemical diversity...
June 27, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28748284/a-density-functional-theory-study-on-the-hydrogen-bonding-interactions-between-luteolin-and-ethanol
#18
Yan-Zhen Zheng, Jing Xu, Qin Liang, Da-Fu Chen, Rui Guo, Zhong-Min Fu
Ethanol is one of the most commonly used solvents to extract flavonoids from propolis. Hydrogen bonding interactions play an important role in the properties of liquid system. The main objective of the work is to study the hydrogen bonding interactions between flavonoid and ethanol. Luteolin is a very common flavonoid that has been found in different geographical and botanical propolis. In this work, it was selected as the representative flavonoid to do detailed research. The study was performed from a theoretical perspective using density functional theory (DFT) method...
August 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/28746550/melipona-mondury-produces-a-geopropolis-with-antioxidant-antibacterial-and-antiproliferative-activities
#19
Tássia L A Dos Santos, Raphael F Queiroz, Alexandra C H F Sawaya, Begoña Gimenez-Cassina Lopez, Milena B P Soares, Daniel P Bezerra, Ana Carolina B C Rodrigues, Vanderlúcia F DE Paula, Ana Maria Waldschmidt
Geopropolis is a special type of propolis produced by stingless bees. Several pharmacological properties have been described for different types of geopropolis, but there have been no previous studies of the geopropolis from Melipona mondury. In this study, we investigated the antioxidant, antibacterial, and antiproliferative activities of M. mondury geopropolis, and determined its chemical profile. The antioxidant activity was determined using in vitro ABTS·+, ·DPPH, and β-carotene/linoleic acid co-oxidation methods...
July 20, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28735886/effects-of-dietary-propolis-on-the-number-and-size-of-pleopadal-egg-oxidative-stress-and-antioxidant-status-of-freshwater-crayfish-astacus-leptodactylus-eschscholtz
#20
Serpil Mişe Yonar, Kenan Köprücü, Muhammet Enis Yonar, Sibel Silici
Four different crayfish diets; control, E1, E2 and E3, respectively containing 0, 1, 2 and 4% propolis, were tested to determine the effects of dietary propolis on the number and size of pleopadal egg, and malondialdehyde (MDA) level, superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px) activities in the freshwater crayfish (Astacus leptodactylus). The crayfish were kept at 9.6±5.3°C water temperature and fed three times daily during a six month period The pleopodal egg number (from 7 to 9) produced per gram of the body weight and total pleopodal egg number (from 201 to 263) significantly increased (P<0...
July 19, 2017: Animal Reproduction Science
keyword
keyword
37089
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"