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https://www.readbyqxmd.com/read/28098798/free-radical-scavenging-activity-of-drops-and-spray-containing-propolis-an-epr-examination
#1
Pawel Olczyk, Katarzyna Komosinska-Vassev, Pawel Ramos, Lukasz Mencner, Krystyna Olczyk, Barbara Pilawa
The influence of heating at a temperature of 50 °C and UV-irradiation of propolis drops and spray on their free radical scavenging activity was determined. The kinetics of interactions of the propolis samples with DPPH free radicals was analyzed. Interactions of propolis drops and propolis spray with free radicals were examined by electron paramagnetic resonance spectroscopy. A spectrometer generating microwaves of 9.3 GHz frequency was used. The EPR spectra of the model DPPH free radicals were compared with the EPR spectra of DPPH in contact with the tested propolis samples...
January 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28089892/algerian-propolis-extracts-chemical-composition-bactericidal-activity-and-in-vitro-effects-on-gilthead-seabream-innate-immune-responses
#2
El-Khamsa Soltani, Rebeca Cerezuela, Noureddine Charef, Samia Mezaache-Aichour, Maria Angeles Esteban, Mohamed Mihoub Zerroug
Propolis has been used as a medicinal agent for centuries. The chemical composition of four propolis samples collected from four locations of the Sétif region, Algeria, using gas chromatography-mass spectrometry was determined. More than 20 compounds and from 30 to 35 compounds were identified in the aqueous and ethanolic extracts, respectively. Furthermore, the antimicrobial activity of the propolis extracts against two marine pathogenic bacteria was evaluated. Finally, the in vitro effects of propolis on gilthead seabream (Sparus aurata L...
January 9, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28078783/new-propolis-type-from-northeast-brazil-chemical-composition-antioxidant-activity-and-botanical-origin
#3
Joselena M Ferreira, Caroline C Fernandes-Silva, Antonio Salatino, Giuseppina Negri, Dejair Message
BACKGROUND: Propolis is a bee product with wide diversity of biological activity. It has complex composition, which is dependent on its botanical source. The present work aimed at determining the chemical profile, antioxidant activity and botanical origin of two samples of a propolis type from two locations of the state of Rio Grande do Norte (RN, northeast Brazil). RESULTS: The standard chemical characteristics of the RN propolis are similar or superior to the internationally marketed Brazilian green propolis...
January 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28074124/involvement-of-blood-mononuclear-cells-in-the-infertility-age-associated-diseases-and-cancer-treatment
#4
REVIEW
Antonin Bukovsky
Blood mononuclear cells consist of T cells and monocyte derived cells. Beside immunity, the blood mononuclear cells belong to the complex tissue control system (TCS), where they exhibit morphostatic function by stimulating proliferation of tissue stem cells followed by cellular differentiation, that is stopped after attaining the proper functional stage, which differs among various tissue types. Therefore, the term immune and morphostatic system (IMS) should be implied. The TCS-mediated morphostasis also consists of vascular pericytes controlled by autonomic innervation, which is regulating the quantity of distinct tissues in vivo...
December 26, 2016: World Journal of Stem Cells
https://www.readbyqxmd.com/read/28073118/in-vitro-metabolism-of-artepillin-c-by-rat-and-human-liver-microsomes
#5
Daniel Blascke Carrão, Nayara Cristina Perez de Albuquerque, Lucas Maciel Mauriz Marques, Antônio Eduardo Miller Crotti, Alan Cesar Pilon, Vanderlan Da Silva Bolzani, Andresa Aparecida Berretta, Anderson Rodrigo Moraes de Oliveira
Artepillin C, a natural product present in the Brazilian green propolis, has several biological properties. Among these properties, the antitumor action of this product is noteworthy and makes it a promising drug candidate for the treatment of several types of cancer. This paper describes the in vitro metabolism of Artepillin C in rat and human liver microsomes. The rat model suggested a sigmoidal profile for the metabolism, adapted to the Hill's kinetic model. The enzymatic kinetic parameters were as follows: maximal velocity = 0...
January 10, 2017: Planta Medica
https://www.readbyqxmd.com/read/28069374/assessment-of-genotoxic-and-antigenotoxic-activities-of-artepillin-c-in-somatic-cells-of-drosophila-melanogaster
#6
Carmem Regine Faleiro Rodrigues, Luciana Ciarelli Plentz, Mariana do Amaral Flores, Rafael Rodrigues Dihl, Mauricio Lehmann
The significant contents of artepillin C (AC) in green propolis have prompted research on the biological activities of the compound. The present study evaluated the activity of this phenolic compound on DNA, assessing its genotoxic and antigenotoxic potentials in the somatic mutation and recombination test in Drosophila melanogaster. The standard (ST) and high-bioactivation (HB) crosses were used in the assessment of genotoxic potential, since they express cytochrome P450 metabolization enzymes differently...
January 6, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28066967/artepillin-c-and-phenolic-compounds-responsible-for-antimicrobial-and-antioxidant-activity-of-green-propolis-and-baccharis-dracunculifolia-dc
#7
R S Veiga, S Mendonça, P B Mendes, N Paulino, M J Mimica, A A Lagareiro Netto, I S Lira, B G C López, V Negrão, M C Marcucci
AIMS: This study investigates the antimicrobial activity in Staphylococcus aureus isolates (MSSA - Methicillin Sensitive Staphylococcus aureus and MRSA - Methicillin Resistant Staphylococcus aureus) and antioxidant activity of green propolis, Baccharis dracunculifolia DC extracts and Artepillin C(™) . METHODS AND RESULTS: The amount of Artepillin C in different extracts was determined by HPLC analysis. Minimum Inhibitory Concentrations 90 (MIC90) was determined using 40 isolates of Staphylococcus aureus inoculated in Müeller-Hinton agar culture medium containing the green-propolis and Baccharis dracunculifolia DC extracts...
January 9, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28063405/effect-of-the-egyptian-propolis-on-the-hepatic-antioxidant-defense-and-pro-apoptotic-p53-and-anti-apoptotic-bcl2-expressions-in-aflatoxin-b1-treated-male-mice
#8
Abeer A Alm-Eldeen, Mohammed A Basyony, Nabil K Elfiky, Mohamed M Ghalwash
Aflatoxins are potent hepatotoxic due to their role in producing reactive oxygen species and consequently peroxidative damage. Propolis is a honey bee product known for its antioxidant capacity. The aim of this study was to verify the antioxidant effect of the Egyptian propolis extract (EPE) against aflatoxin B1 (AFB1)-induced hepatotoxicity in mice. Forty eight male mice were divided: first, second and third groups were used as control receiving saline, olive oil and EPE respectively, fourth was AFB1 group, fifth and sixth received EPE post or pre AFB1 treatment, respectively...
January 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28058577/development-of-an-indirect-dot-ppa-elisa-using-glutamate-dehydrogenase-as-a-diagnostic-antigen-for-the-rapid-and-specific-detection-of-streptococcus-suis-and-its-application-to-clinical-specimens
#9
Xiao-Jing Xia, Lei Wang, Zhi-Qiang Shen, Wanhai Qin, Jianhe Hu, Shi-Jin Jiang, Shu-Guang Li
Streptococcus suis is an important zoonotic pathogen causing infections in pigs and humans. Bacterial surface-related proteins are often explored as potential vaccine candidates and diagnostic antigens. In the present study, glutamate dehydrogenase, a highly conserved immunogenic extracellular protein, was used to establish a dot horseradish peroxidase enzyme-linked staphylococcal protein A immunosorbent assay (Dot-PPA-ELISA) for diagnosis of S. suis infection. The antigen-antibody reaction was optimised through checkerboard titration involving serial dilutions, followed by selective blocking tests and evaluations of cross-reaction, repeatability, and stability...
January 5, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28056925/erratum-to-studies-on-the-therapeutic-effect-of-propolis-along-with-standard-antibacterial-drug-in-salmonella-enterica-serovar-typhimurium-infected-balb-c-mice
#10
Preeti Kalia, Neelima R Kumar, Kusum Harjai
No abstract text is available yet for this article.
January 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28052206/does-addition-of-propolis-to-glass-ionomer-cement-alter-its-physicomechanical-properties-an-in-vitro-study
#11
P Subramaniam, K L Girish Babu, G Neeraja, S Pillai
: Propolis is a natural resinous substance produced by honey bees. The antimicrobial effects of glass ionomer cement have been shown to improve with the addition of propolis; however its effect on the physicomechanical properties of the cement is not known. AIM: The purpose of this study was to evaluate the compressive strength and solubility of conventional restorative glass ionomer cement following the addition of propolis. STUDY DESIGN: Twenty half cylindrical samples were prepared with conventional restorative glass ionomer cement formed the control group...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28028522/preparation-and-evaluation-of-a-hair-wax-containing-propolis-and-eruca-sativa-seed-oil-for-hair-growth
#12
Mohammad-Ali Shatalebi, Leila Safaeian, Azar Baradaran, Mozhde Alamdarian
BACKGROUND: Hair growth as a key consumer objective has important role in the hair care products researches. This study was aimed to investigate the effect of a hair wax containing propolis, a resinous mixture produced by honeybees in Eruca sativa seed oil base on hair growth. MATERIALS AND METHODS: The hair wax was designed and formulated compared with marketed brand hair wax and evaluated for pharmaceutical parameters including pH, homogeneity, consistency, spread ability, in vitro drug release, and stability...
2016: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28012592/metabolomics-study-of-populus-type-propolis
#13
Boban Anđelković, Ljubodrag Vujisić, Ivan Vučković, Vele Tešević, Vlatka Vajs, Dejan Gođevac
Herein, we propose rapid and simple spectroscopic methods to determine the chemical composition of propolis derived from various Populus species using a metabolomics approach. In order to correlate variability in Populus type propolis composition with the altitude of its collection, NMR, IR, and UV spectroscopy followed by OPLS was conducted. The botanical origin of propolis was established by comparing propolis spectral data to those of buds of various Populus species. An O2PLS method was utilized to integrate two blocks of data...
December 15, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28008772/selective-treatment-to-reduce-contamination-of-propolis-by-polycyclic-aromatic-hydrocarbons-pahs-still-preserving-its-active-polyphenol-component-and-antioxidant-activity
#14
Fabio Galeotti, Laura Crimaldi, Francesca Maccari, Vincenzo Zaccaria, Alfredo Fachini, Nicola Volpi
The adverse effects on health and environment caused by polycyclic aromatic hydrocarbons (PAHs) are critical problems. EFSA has defined 16 priority PAHs that are both genotoxic and carcinogenic, and identified eight (PAH8) priority PAHs as good indicators of the toxicity and occurrence in food. Food supplements containing propolis were also found to contain relatively high quantities of PAHs. We report about an extractive procedure which is able to purify propolis from a high content of PAHs using a balanced mixture of ethanol and water solvents...
December 23, 2016: Natural Product Research
https://www.readbyqxmd.com/read/28000555/physicochemical-characteristics-of-brazilian-green-propolis-evaluated-during-a-six-year-period
#15
Sônia M De Figueiredo, Nancy Scardua Binda, Sidney AugustoVieira-Filho, Bruno de Moura Almeida, Sheila Rago Lemos Abreu, Niraldo Paulino, Gláucia Maria Pastore, HéliaHarumi Sato, Viviane Cristina Toreti Theodoropoulos, Eulália Vargas Tapia, Yong Kun Park, Raquel Basques Caligiorne
BACKGROUND: Propolis has been used as a natural health product mainly due to the presence of polyphenols, flavonoids, phenolic aldehydes, amino acids, vitamins and others bioactive constituents. To this natural substance are attributed different biological and pharmacological properties which are influenced by its chemical composition and organoleptic properties. The aim of this work was to evaluate the physicochemical properties and parameters of green propolis collected during a period of six years (2008-2013) in the state of Minas Gerais, located at the southeastern region of Brazil...
December 20, 2016: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/28000163/pinocembrin-attenuates-mitochondrial-dysfunction-in-human-neuroblastoma-sh-sy5y-cells-exposed-to-methylglyoxal-role-for-the-erk1-2-nrf2-signaling-pathway
#16
Marcos Roberto de Oliveira, Alessandra Peres, Gustavo Costa Ferreira
Pinocembrin (PB; 5,7-dihydroxyflavanone) is found in propolis and exhibits antioxidant activity in several experimental models. The antioxidant capacity of PB is associated with the activation of the nuclear factor erythroid 2-related factor 2/antioxidant response element (Nrf2/ARE) signaling pathway. The Nrf2/ARE axis mediates the expression of antioxidant and detoxifying enzymes, such as glutathione peroxidase (GPx), glutathione reductase (GR), heme oxygenase-1 (HO-1), and the catalytic (GCLC) and regulatory (GCLM) subunits of the rate-limiting enzyme in the synthesis of glutathione (GSH), γ-glutamate-cysteine ligase (γ-GCL)...
December 21, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/27982224/dentifrice-containing-extract-of-rosmarinus-officinalis-linn-an-antimicrobial-evaluation
#17
Marcela Agne Alves Valones, Jane Sheila Higino, Paulo Roberto Eleutério Souza, Sérgio Crovella, Arnaldo de França Caldas, Alessandra de Albuquerque Tavares Carvalho
This study aimed to evaluate the antimicrobial activity of a dentifrice containing an alcoholic extract of rosemary on oral bacteria, compared to a commercially available herbal dentifrice. Standard strains of Streptococcus mutans (ATCC 25175), Streptococcus oralis (ATCC 9811) and Lactobacillus rhamnosus (ATCC 7469) were used, as well as different toothpastes based on rosemary (TR), on propolis (TH), triclosan (positive control) (TPC) and non-fluoridated dentifrice (negative control) (TNC). Bacteria were seeded in Petri dishes and paper discs soaked with dilutions of dentifrice placed on the plates...
September 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27978495/brazilian-red-propolis-improves-cutaneous-wound-healing-suppressing-inflammation-associated-transcription-factor-nf%C3%AE%C2%BAb
#18
Flavia Regina Sobreira Corrêa, Fernanda Seabra Schanuel, Nathalia Moura-Nunes, Andréa Monte-Alto-Costa, Julio Beltrame Daleprane
The use of natural products in wound healing has been extensively studied in the context of complementary and alternative medicine. Propolis, a natural product, is a polyphenol-rich resin used for this purpose. This study aimed to investigate the effect of Brazilian Red Propolis Extract (BRPE) on inflammation and wound healing in mice, using a tissue repair model. The BRPE polyphenol content was analyzed by liquid chromatography coupled to mass spectrometry (LC/MS). A full-thickness excision lesion was created, and mice were treated orally with daily doses of vehicle solution (water-alcohol solution containing 2% of ethanol, control group) or 100mg/kg of BRPE (P100 group) during nine consecutive days...
December 12, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27976503/effect-of-temperature-and-seven-storage-media-on-human-periodontal-ligament-fibroblast-viability
#19
Beatriz Dulcineia Mendes de Souza, Eduardo Antunes Bortoluzzi, Jessie Reyes-Carmona, Luciane Geanini Pena Dos Santos, Claudia Maria de Oliveira Simões, Wilson Tadeu Felippe, Mara Cristina Santos Felippe
BACKGROUND/AIM: Natural resources, such as coconut water, propolis, and egg whites, have been examined as possible storage media for avulsed teeth. However, there is a lack of research focused on the efficacy of these three products together compared with Hank's balanced salt solution and milk. The aim of this study was to evaluate the capacity of seven storage media to maintain the viability of human periodontal ligament fibroblasts (PDLFs). MATERIAL AND METHODS: PDLFs were kept at 5°C and 20°C, in skimmed milk (SMilk), whole milk (WMilk), recently prepared Hank's balanced salt solution (HBSS), Save-A-Tooth(®) system's HBSS (Save), natural coconut water (Coconut), Propolis, and egg white (Egg) for 3, 6, 24, 48, 72, 96, and 120 h, through the analysis of tetrazolium salt-based colorimetric (MTT) assay...
November 7, 2016: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/27976247/method-development-and-validation-for-optimized-separation-of-the-major-polyphenolics-in-propolis-extracts-using-gc-ms-method
#20
K Siemionow, M Tomczyk, U Czyzewska, W Miltyk
No abstract text is available yet for this article.
December 2016: Planta Medica
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