keyword
MENU ▼
Read by QxMD icon Read
search

propolis

keyword
https://www.readbyqxmd.com/read/28719473/delayed-patch-test-reading-after-5-days-an-update-from-the-mayo-clinic-contact-dermatitis-group
#1
Hafsa M Chaudhry, Lisa A Drage, Rokea A El-Azhary, Matthew R Hall, Jill M Killian, Amy V Prakash, James A Yiannias, Mark D P Davis
BACKGROUND: Patch-test readings after day 5 have previously been used to identify delayed reactions to metals and topical antibiotics. OBJECTIVE: The aims of this study were to identify allergens for which late readings (beyond day 5) would be most valuable and to compare our results with our previous study on delayed patch-test readings. METHODS: This was a retrospective study of 298 patients who underwent metal and corticosteroid series patch testing from January 1, 2007, through December 31, 2013...
July 2017: Dermatitis
https://www.readbyqxmd.com/read/28718789/flavonoid-and-antioxidant-capacity-of-propolis-prediction-using-near-infrared-spectroscopy
#2
Eddy Betances-Salcedo, Isabel Revilla, Ana M Vivar-Quintana, M Inmaculada González-Martín
The use of propolis as a dietary supplement or as an ingredient in different food products is increasing, due to its antioxidant and bactericidal properties. These nutritional properties directly depend on its phenolic composition. For this reason, this study analysed the total contents of flavones and flavonols, flavanones and dihydroflavonols, and the antioxidant capacity by using the methods of ABTS and linoleic acid/β-carotene in 99 samples of propolis from Spain and Chile. A rapid method was developed for quantifying these parameters in raw propolis using near infrared (NIR) spectroscopy with a remote reflectance fibre-optic probe applied directly to the ground-up sample...
July 18, 2017: Sensors
https://www.readbyqxmd.com/read/28704754/metabolomics-study-of-cadmium-induced-diabetic-nephropathy-and-protective-effect-of-caffeic-acid-phenethyl-ester-using-uplc-q-tof-ms-combined-with-pattern-recognition
#3
Pin Gong, Xiangna Chang, Xuefeng Chen, Xiaohuan Bai, He Wen, Sihui Pi, Wenjuan Yang, Lan Wang, Fuxin Chen
Diabetic nephropathy (DN) is the most severe complication of diabetes and multiple factors are involved in the pathogenesis of DN. Among them, cadmium (Cd) acts as a risk factor inducing the occurrence of DN. The present study focused on investigating the protective role of caffeic acid phenethyl ester (CAPE), an active component of propolis from honeybee hives, against Cd-induced DN in mice based on ultra performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS)and pattern recognition...
June 28, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28701955/therapeutic-properties-of-bioactive-compounds-from-different-honeybee-products
#4
REVIEW
Laura Cornara, Marco Biagi, Jianbo Xiao, Bruno Burlando
Honeybees produce honey, royal jelly, propolis, bee venom, bee pollen, and beeswax, which potentially benefit to humans due to the bioactives in them. Clinical standardization of these products is hindered by chemical variability depending on honeybee and botanical sources, but different molecules have been isolated and pharmacologically characterized. Major honey bioactives include phenolics, methylglyoxal, royal jelly proteins (MRJPs), and oligosaccharides. In royal jelly there are antimicrobial jelleins and royalisin peptides, MRJPs, and hydroxy-decenoic acid derivatives, notably 10-hydroxy-2-decenoic acid (10-HDA), with antimicrobial, anti-inflammatory, immunomodulatory, neuromodulatory, metabolic syndrome preventing, and anti-aging activities...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28696397/characterization-and-biological-evaluation-of-propolis-from-poland
#5
Milena Popova, Efstathia Giannopoulou, Krystyna Skalicka-Woźniak, Konstantia Graikou, Jaroslaw Widelski, Vassya Bankova, Haralabos Kalofonos, Gregory Sivolapenko, Katarzyna Gaweł-Bęben, Beata Antosiewicz, Ioanna Chinou
In this study, we assessed the therapeutic potential of propolis from Poland and performed chemical analysis by GC-MS, as well as determined its botanical origin. Chemical constituents typical for bud exudates of Populusnigra (section Aigeiros) were determined, however, glycerol esters of phenolic acids, as well as unusually high amounts of p-coumaric and ferulic acid and their benzyl esters, were also detected. These constituents are characteristic for buds of Populustremula (section Leuce). We also evaluated the antiproliferative effect of propolis extracts against nine human cancer cell lines...
July 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28695606/orally-administered-chrysin-improves-post-thawed-sperm-quality-and-fertility-of-rooster
#6
M Zhandi, M Ansari, P Roknabadi, A Zare Shahneh, M Sharafi
Chrysin is a bioflavonoid compound found in passion flower, chamomile, propolis and honey at high levels. Post-thawed sperm quality and fertility of Chrysin-fed roosters were assessed in this study. Twenty 40-week-old male broiler breeders were randomly divided into four groups and fed basal diet supplemented with different levels of Chrysin including 0 (Ch-0), 25 (Ch-25), 50 (Ch-50) or 75 (Ch-75) mg/day for 12 consecutive weeks. Semen samples were weekly collected from 6th to 9th week of experiment to evaluate some sperm quality parameters including total and progressive motility, plasma membrane integrity and functionality (in fresh and post-thawed samples) and mitochondrial activity (only in post-thawed samples)...
July 10, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28694744/protective-effects-of-chrysin-against-drugs-and-toxic-agents
#7
REVIEW
Saeed Samarghandian, Tahereh Farkhondeh, Mohsen Azimi-Nezhad
ISSUES: Polyphenolic compounds, especially flavonoids, are known as the most common chemical class of phytochemicals, which possess a multiple range of health-promoting effects. Flavonoids are ubiquitous in nature. They are also present in food, providing an essential link between diet and prevention of several diseases. APPROACH: Chrysin (CH), a natural flavonoid, was commonly found in propolis and honey and traditionally used in herbal medicine. A growing body of scientific evidence has shown that CH possesses protective effects against toxic agents in various animal tissues, including brain, heart, liver, kidney, and lung...
April 2017: Dose-response: a Publication of International Hormesis Society
https://www.readbyqxmd.com/read/28690662/parasite-killing-of-leishmania-v-braziliensis-by-standardized-propolis-extracts
#8
Jéssica Rebouças-Silva, Fabiana S Celes, Jonilson Berlink Lima, Hernane S Barud, Camila I de Oliveira, Andresa A Berretta, Valéria M Borges
Treatments based on antimonials to cutaneous leishmaniasis (CL) entail a range of toxic side effects. Propolis, a natural compound widely used in traditional medical applications, exhibits a range of biological effects, including activity against infectious agents. The aim of this study was to test the potential leishmanicidal effects of different propolis extracts against Leishmania (Viannia) braziliensis promastigotes and intracellular amastigotes in vitro. Stationary-phase L. (V) braziliensis promastigotes were incubated with medium alone or treated with dry, alcoholic, or glycolic propolis extract (10, 50, or 100 μg/mL) for 96 h...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28686968/neuroprotective-effect-of-indian-propolis-in-%C3%AE-amyloid-induced-memory-deficit-impact-on-behavioral-and-biochemical-parameters-in-rats
#9
Sadhana Nanaware, Madhuri Shelar, Arulmozhi Sinnathambi, K R Mahadik, Sathiyanarayanan Lohidasan
The study aimed at the investigation of neuroprotective activity of macerated ethanolic extract of Indian propolis (MEEP) against β-Amyloid 25-35 (Aβ25-35) induced memory impairment in Alzheimer's disease. MEEP was administrated orally to Wistar rats at doses of 100, 200 and 300mg/kg. Behavioral performances were evaluated using morris water maze and radial arm maze. At the end of behavioral study, the brains were removed and antioxidant parameters and brain monoamines were estimated. Further acetylcholinesterase (AchE) inhibition and brain-derived neurotropic factor (BDNF) were evaluated...
July 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28681702/wound-healing-time-to-look-for-intelligent-natural-immunological-approaches
#10
Olivier Garraud, Wael N Hozzein, Gamal Badr
There is now good evidence that cytokines and growth factors are key factors in tissue repair and often exert anti-infective activities. However, engineering such factors for global use, even in the most remote places, is not realistic. Instead, we propose to examine how such factors work and to evaluate the reparative tools generously provided by 'nature.' We used two approaches to address these objectives. The first approach was to reappraise the internal capacity of the factors contributing the most to healing in the body, i...
June 21, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28677816/galangin-suppresses-human-laryngeal-carcinoma-via-modulation-of-caspase-3-and-akt-signaling-pathways
#11
Hai-Xu Wang, Chen Tang
Laryngeal cancers are mostly squamous cell carcinomas. Although targeting radio-resistant cancer cells is important for improving the treatmental efficiency, the signaling pathway- and therapeutic strategy-related to laryngeal carcinoma still require further study. Galangin is an active pharmacological ingredient, isolated from propolis and Alpinia officinarum Hance, and has been reported to have anticancer and anti-oxidative properties through regulation of cell cycle, resulting in angiogenesis, apoptosis, invasion and migration without triggering any toxicity in normal cells...
June 29, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28674707/propolis-extracted-from-the-stingless-bee-trigona-sirindhornae-inhibited-s-mutans-activity-in-vitro
#12
Kusumawadee Utispan, Bordin Chitkul, Paopanga Monthanapisut, Ladda Meesuk, Kamolparn Pugdee, Sittichai Koontongkaew
PURPOSE: The aim of this study was to determine the antimicrobial effects of propolis extracted from an endemic species of stingless bee, T. sirindhornae, on the cariogenic bacterium Streptococcus mutans. MATERIALS AND METHODS: Dichloromethane extracts (DME) of propolis (DMEP) were prepared and analysed by reverse-phase high-performance liquid chromatography. The antibacterial growth and antibiofilm formation effects of DMEP on S. mutans were compared with those of apigenin, a commercial propolis product...
2017: Oral Health & Preventive Dentistry
https://www.readbyqxmd.com/read/28671640/chrysin-attenuates-vcam-1-expression-and-monocyte-adhesion-in-lipopolysaccharide-stimulated-brain-endothelial-cells-by-preventing-nf-%C3%AE%C2%BAb-signaling
#13
Bo Kyung Lee, Won Jae Lee, Yi-Sook Jung
Adhesion of leukocytes to endothelial cells plays an important role in neuroinflammation. Therefore, suppression of the expression of adhesion molecules in brain endothelial cells may inhibit neuroinflammation. Chrysin (5,7-dihydroxyflavone) is a flavonoid component of propolis, blue passion flowers, and fruits. In the present study, we examined the effects of chrysin on lipopolysaccharide (LPS)-induced expression of vascular cell adhesion molecule-1 (VCAM-1) in mouse cerebral vascular endothelial (bEnd.3) cells...
July 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28665769/lack-of-evidence-for-microplastic-contamination-in-honey
#14
Peter Mühlschlegel, Armin Hauk, Ulrich Walter, Robert Sieber
Honey samples from Switzerland were investigated with regard to their microplastic particle burden. Five representative honey samples of different origin were processed following a standardized protocol to separate plastic-based microparticles from particles of natural origin, such as pollen, propolis, wax, and bee-related debris. The procedure was optimized to minimize post-sampling microplastic cross-contamination in the laboratory. The isolated microplastic particles were characterized and grouped by means of light microscopy as well as chemically characterized by microscopically coupled Raman and Fourier transform infrared spectroscopy...
July 10, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28663710/chemical-compositions-and-characteristics-of-organic-compounds-in-propolis-from-yemen
#15
Ahmad A Al-Ghamdi, Nowfal I M Bayaqoob, Ahmed I Rushdi, Yehya Alattal, Bernd R T Simoneit, Aarif H El-Mubarak, Khalid F Al-Mutlaq
Propolis is a gummy material made by honeybees for protecting their hives from bacteria and fungi. The main objective of this study is to determine the chemical compositions and concentrations of organic compounds in the extractable organic matter (EOM) of propolis samples collected from four different regions in Yemen. The propolis samples were extracted with a mixture of dichloromethane and methanol and analyzed by gas chromatography-mass spectrometry (GC-MS). The results showed that the total extract yields ranged from 34% to 67% (mean = 55...
July 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28663700/interleukin-6-expression-on-inflamed-rat-dental-pulp-tissue-after-capped-with-trigona-sp-propolis-from-south-sulawesi-indonesia
#16
Ardo Sabir, Andi Sumidarti
Background: Propolis is a natural product of plant resins collected by honeybees from various plant sources. It is used as a remedy in folk medicine since ancient times because of its several biological and pharmacological properties. Recently, propolis has been used by dentist to treat various oral diseases. It was always mentioned as an anti-inflammatory agent. Cytokines are proteins that provide communication between cells and play a critical role in a wide variety of processes. It released from cells in an inflammatory process that active, mediate or potential actions of other cells or tissues...
July 2017: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/28642199/chemical-profile-and-anti-leishmanial-activity-of-three-ecuadorian-propolis-samples-from-quito-guayaquil-and-cotacachi-regions
#17
Osmany Cuesta-Rubio, Mercedes Campo Fernández, Ingrid Márquez Hernández, Carmita Gladys Jaramillo Jaramillo, Victor Hugo González, Rodny Montes De Oca Porto, David Marrero Delange, Lianet Monzote Fidalgo, Anna Lisa Piccinelli, Luca Campone, Luca Rastrelli
Three propolis samples were collected from different regions of Ecuador (Quito, Guayaquil and Cotacachi) and their methanolic extracts were prepared. Preliminary information supplied by TLC and NMR data, allowed us to define two main types of propolis: Cotacachi propoli sample (CPS), rich in flavonoids and Quito and Guayaquil samples (QPS and GPS) containing triterpenic alcohols and acetyl triterpenes as the main constituents. Two different approaches based on RP-HPLC preparative procedure and NMR structural determination (CPS) and GC-MS analysis (QPS and GPS) were successfully used for the chemical characterization of their major compounds...
June 19, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28641462/microbiological-control-and-antibacterial-action-of-a-propolis-containing-mouthwash-and-control-of-dental-plaque-in-humans
#18
Karina Basso Santiago, Gilce Maria Piana, Bruno José Conti, Eliza de Oliveira Cardoso, Bruna Fernanda Murbach Teles Andrade, Mirella Rossitto Zanutto, Vera Lúcia Mores Rall, Ary Fernandes, José Maurício Sforcin
Propolis is a bee product with several biological properties. This study aimed at investigating a propolis-containing mouthwash, its organoleptic properties, microbial contamination and its antibacterial action in vitro. This mouthwash was assessed in vivo to control dental plaque in humans. The presence of microorganisms was analyzed and the minimum inhibitory concentration against Streptococcus mutans was determined. A comparative study was done in vivo using propolis, chlorhexidine, and propolis plus chlorhexidine in lower concentrations for 14 days...
June 23, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28631525/polyphenol-profile-by-uhplc-ms-ms-anti-glycation-antioxidant-and-cytotoxic-activities-of-several-samples-of-propolis-from-the-northeastern-semi-arid-region-of-brazil
#19
Jadriane de Almeida Xavier, Iara Barros Valentim, Fabiana O S Camatari, Alberto M M de Almeida, Henrique Fonseca Goulart, Jamylle Nunes de Souza Ferro, Emiliano de Oliveira Barreto, Bruno Coelho Cavalcanti, Carla B G Bottoli, Marília Oliveira Fonseca Goulart
CONTEXT: Propolis has promising biological activities. Propolis samples from the Northeast of Bahia, Brazil - sample A from Ribeira do Pombal and B, from Tucano - were investigated, with new information regarding their biological activities. OBJECTIVE: This paper describes the chemical profile, antioxidant, anti-glycation and cytotoxic activities of these propolis samples. MATERIAL AND METHODS: Ethanol extracts of these propolis samples (EEP) and their fractions were analyzed to determine total phenolic content (TPC); antioxidant capacity through DPPH(•), FRAP and lipid peroxidation; anti-glycation activity, by an in vitro glucose (10 mg/mL) bovine serum albumine (1 mg/mL) assay, during 7 d; cytotoxic activity on cancer (SF295, HCT-116, OVCAR-8, MDA-MB435, MX-1, MCF7, HL60, JURKAT, MOLT-4, K562, PC3, DU145) and normal cell lines (V79) at 0...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28629133/propolis-diterpenes-as-a-remarkable-bio-source-for-drug-discovery-development-a-review
#20
REVIEW
Noushin Aminimoghadamfarouj, Alireza Nematollahi
Propolis is one of the complex, but valuable, bio-sources for discovering therapeutic compounds. Diterpenes are organic compounds composed of four isoprene units and are known for their biological and pharmacological characteristics, such as antibacterial, anticancer, and anti-inflammatory activities. Recently, advancements have been made in the development of antibacterial and anticancer leads from propolis-isolated diterpenes, and scrutiny of these compounds is being pursued. Thus, this review covers the progress in this arena, with a focus on the chemistry and biological activities of propolis diterpenes...
June 17, 2017: International Journal of Molecular Sciences
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"