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https://www.readbyqxmd.com/read/27890584/a-sedge-plant-as-the-source-of-kangaroo-island-propolis-rich-in-prenylated-p-coumarate-ester-and-stilbenes
#1
Colin C Duke, Van H Tran, Rujee K Duke, Abdallah Abu-Mellal, George T Plunkett, Douglas I King, Kaiser Hamid, Karen L Wilson, Russell L Barrett, Jeremy J Bruhl
Propolis samples from Kangaroo Island, South Australia, were investigated for chemical constituents using high-field nuclear magnetic resonance spectral profiling. A type of propolis was found containing a high proportion of prenylated hydroxystilbenes. Subsequently, the botanical origin of this type of propolis was identified using a beehive propolis depletion method and analysis of flora. Ligurian honey bees, Apis mellifera ligustica Spinola, were found to produce propolis from resin exuded by the Australian native sedge plant Lepidosperma sp...
November 24, 2016: Phytochemistry
https://www.readbyqxmd.com/read/27889229/brown-propolis-attenuates-cerebral-ischemia-induced-oxidative-damage-via-affecting-antioxidant-enzyme-system-in-mice
#2
Gholamreza Bazmandegan, Mohammad Taher Boroushaki, Ali Shamsizadeh, Fatemeh Ayoobi, Elham Hakimizadeh, Mohammad Allahtavakoli
Oxidative stress plays a critical role in ischemic brain injury. Superoxide dismutase (SOD) and glutathione peroxidase (GPx) are the enzymes underlying the endogenous antioxidant mechanisms affected by stroke and are considered as oxidative stress biomarkers. Brown propolis (BP) is a bioactive natural product with a set of biological activities that in turn may differ depending on the area from which the substance is originated. The aim of this study was to investigate the effect of water-extracted brown propolis (WEBPs), from two regions of Iran, against cerebral ischemia-induced oxidative injury in a mouse model of stroke...
November 23, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27887651/studies-on-the-therapeutic-effect-of-propolis-along-with-standard-antibacterial-drug-in-salmonella-enterica-serovar-typhimurium-infected-balb-c-mice
#3
Preeti Kalia, Neelima R Kumar, Kusum Harjai
BACKGROUND: Antibiotic resistance is an emerging public health problem. Centers for Disease Control and Prevention (CDC) has described antibiotic resistance as one of the world's most pressing health problems in 21(st) century. WHO rated antibiotic resistance as "one of the three greatest threats to human health". One important strategy employed to overcome this resistance is the use of combination of drugs. Many plants, natural extracts have been shown to exhibit synergistic response with standard drugs against microorganisms...
November 25, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27885330/formulation-of-propolis-phenolic-acids-containing-microemulsions-and-their-biopharmaceutical-characterization
#4
Modestas Žilius, Kristina Ramanauskienė, Vaida Juškaitė, Vitalis Briedis
Microemulsions (MEs) were formulated using PEG-8 caprylic/capric glycerides and ethanolic propolis extracts. Characterization of MEs was performed by determining mean droplet size, polydispersity index, stability under varying external factors, and formulation effect on delivery of phenolic compounds into the skin ex vivo. Essential oils were included into the formulations of MEs and their influence on physical characteristics of the nanostructured systems as well as penetration into epidermis and dermis were evaluated...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/27876732/-the-use-of-propolis-based-therapy-in-otorhionolaryngology
#5
Sh M Omarov, G A Gadzhimirzaev, R G Gadzhimirzaeva, Z Sh Omarova
The authors analyze the literature publications and the results of their original investigations concerning the application of the propolis-based pharmacological products for the treatment of acute and chronic diseases of the upper respiratory tract and ears. The desirability of the more extensive application of the propolis-containing medicines in the routine otorhinolaryngological practice is emphasized bearing in mind their numerous biological effects including antibiotic, anti-inflammatory, immunostimulating, anti-oxidative, anesthetic, and cytostatic actions...
2016: Vestnik Otorinolaringologii
https://www.readbyqxmd.com/read/27876206/synergistic-anti-cancer-effects-of-galangin-and-berberine-through-apoptosis-induction-and-proliferation-inhibition-in-oesophageal-carcinoma-cells
#6
Kewei Ren, Wenzhe Zhang, Gang Wu, Jianzhuang Ren, Huibin Lu, Zongming Li, Xinwei Han
Galangin is an active pharmacological ingredient from propolis and Alpinia officinarum Hance, and has been reported to have anti-cancer and antioxidative properties. Berberine, a major component of Berberis vulgaris extract, exhibits potent anti-cancer activities through distinct molecular mechanisms. However, the anticancer effect of galangin in combination with berberine is still unknown. In the present study, we demonstrated that the combination of galangin with berberine synergistically resulted in cell growth inhibition, apoptosis and cell cycle arrest at G2/M phase with the increased intracellular reactive oxygen species (ROS) levels in oesophageal carcinoma cells...
November 18, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27863053/caffeic-acid-phenethyl-ester-cape-revisited-covalent-modulation-of-xpo1-crm1-activities-and-implication-for-its-mechanism-of-action
#7
Sijin Wu, Keren Zhang, Hongqiang Qin, Mingshan Niu, Weijie Zhao, Mingliang Ye, Hanfa Zou, Yongliang Yang
Caffeic acid phenethyl ester (CAPE) is the bioactive constituent of propolis from honeybee hives and is well known for its anti-inflammatory, anti-carcinogenic, antioxidant and immunomodulatory properties. Herein, we revisited the cellular mechanism underlying the diverse biological effects of CAPE. We demonstrated that XPO1/CRM1, a major nuclear export receptor, is a cellular target of CAPE. Through nuclear export functional assay, we observed a clear shift of XPO1 cargo proteins from a cytoplasmic localization to nucleus when treated with CAPE...
November 8, 2016: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/27859763/caecal-microbiota-of-chickens-fed-diets-containing-propolis
#8
C Eyng, A E Murakami, A A Pedroso, C R A Duarte, K P Picoli
The present study aimed to evaluate the effect of different levels of ethanolic extract of propolis (EEP) and raw propolis (RP) on broiler performance and on selected bacterial groups in caecal microbiota using fluorescent in situ hybridization (FISH) measured by fluorescent activated cell sorting. Two experiments were conducted with 120 male chicks from 1 to 21 days of age for each, raised in cages and distributed in a completely randomized experimental design; there were five replicates with four birds per experimental unit and six treatments for each experiment (trial 1 - EEP - 0, 1000, 2000, 3000, 4000 and 5000 ppm and trial 2 - RP - 0, 100, 200, 300, 400 and 500 ppm)...
November 18, 2016: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/27855625/therapeutic-potential-of-caffeic-acid-phenethyl-ester-cape-in-diabetes
#9
Valeria Pittala, Loredana Salerno, Giuseppe Romeo, Rosaria Acquaviva, Claudia Di Giacomo, Valeria Sorrenti
Diabetes mellitus is a complex metabolic disease characterized by high blood sugar levels. Different pathogenic processes are involved in the etiology of the disease. Indeed, chronic diabetes hyperglycemia is often associated with severe long-term complications including cardiovascular symptoms, retinopathy, nephropathy, and neuropathy. Although the precise molecular mechanisms underlying diabetes are not yet clear, it is widely accepted that increased levels of oxidative stress are involved in the onset, development and progression of diabetes and its related complications...
November 18, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27846444/effect-of-pla-films-containing-propolis-ethanolic-extract-cellulose-nanoparticle-and-ziziphora-clinopodioides-essential-oil-on-chemical-microbial-and-sensory-properties-of-minced-beef
#10
Nassim Shavisi, Ali Khanjari, Afshin Akhondzadeh Basti, Ali Misaghi, Yasser Shahbazi
This study was conducted to examine the effects of polylactic acid (PLA) film containing propolis ethanolic extract (PE), cellulose nanoparticle (CN) and Ziziphora clinopodioides essential oil (ZEO) on chemical, microbial and sensory properties of minced beef during storage at refrigerated temperature for 11days. The initial total volatile base nitrogen (TVB-N) was 8.2mg/100g and after 7days reached to 29.1mg/100g in control, while it was lower than 25mg/100g for treated samples. At the end of storage time in control samples peroxide value (PV) reached to 2...
October 29, 2016: Meat Science
https://www.readbyqxmd.com/read/27832944/caffeic-acid-phenethyl-ester-attenuates-lipopolysaccharide-stimulated-proinflammatory-responses-in-human-gingival-fibroblasts-via-nf-%C3%AE%C2%BAb-and-pi3k-akt-signaling-pathway
#11
Lei Li, Wei Sun, Tao Wu, Rui Lu, Bin Shi
Periodontal diseases often begin with chronic gingival inflammation, which causes the destruction of periodontal tissues. Inflammatory immune responses from host cells to bacteria, such as Porphyromonas gingivalis (P. gingivalis), cause periodontal degradation. Human gingival fibroblasts (HGFs) are the major cells in periodontal soft tissues. When stimulated by lipopolysaccharide (LPS), HGFs could secrete several pro-inflammatory cytokines and chemokines, such as interleukins (ILs) IL-6, IL-8, inducible nitric oxide synthase (iNOS), and cyclooxygenase 2 (COX-2)...
November 7, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27823622/main-pathways-of-action-of-brazilian-red-propolis-on-the-modulation-of-neutrophils-migration-in-the-inflammatory-process
#12
Bruno Bueno-Silva, Marcelo Franchin, Claudiney de Freitas Alves, Carina Denny, David Fernando Colón, Thiago Mattar Cunha, Severino Matias Alencar, Marcelo Henrique Napimoga, Pedro Luiz Rosalen
BACKGROUND: Brazilian propolis is popularly used as treatment for different diseases including the ones with inflammatory origin. Brazilian red propolis chemical profile and its anti-inflammatory properties were recently described however, its mechanism of action has not been investigated yet. AIM: Elucidate Brazilian red propolis major pathways of action on the modulation of neutrophil migration during the inflammatory process. METHODS: The ethanolic extract of propolis (EEP) activity was investigated for neutrophil migration into the peritoneal cavity, intravital microscopy (rolling and adhesion of leukocytes), quantification of cytokines TNF-α, IL-1β and chemokines CXCL1/KC, CXCL2/MIP-2, neutrophil chemotaxis induced by CXCL2/MIP-2, calcium influx and CXCR2 expression on neutrophils...
December 1, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27822584/in-vivo-assessment-of-the-antimalarial-and-spleen-protective-activities-of-the-saudi-propolis-methanolic-extract
#13
Qwait AlGabbani, Lamjed Mansour, Yasser A Elnakady, Saleh Al-Quraishy, Suliman Alomar, Esam M Al-Shaebi, Abdel-Azeem S Abdel-Baki
Antimalarial drug resistance is the main therapeutic challenge to the control of the disease, making the search for new compounds as alternative treatments of central importance. Propolis has a long history of medicinal use due to its antifungal, antibacterial and antiprotozoal properties. The present study therefore aimed to evaluate the antimalarial activity of the Saudi propolis methanolic extract against Plasmodium chabaudi infection in mice. To this end, albino mice were divided into five groups: the first group was the normal control; the second, third, fourth and fifth groups were infected intraperitoneally with 10(6) P...
November 7, 2016: Parasitology Research
https://www.readbyqxmd.com/read/27822336/neurobehavioral-and-antioxidant-effects-of-ethanolic-extract-of-yellow-propolis
#14
Cinthia Cristina Sousa de Menezes da Silveira, Luanna Melo Pereira Fernandes, Mallone Lopes Silva, Diandra Araújo Luz, Antônio Rafael Quadros Gomes, Marta Chagas Monteiro, Christiane Schineider Machado, Yohandra Reyes Torres, Tatiana Onofre de Lira, Antonio Gilberto Ferreira, Enéas Andrade Fontes-Júnior, Cristiane Socorro Ferraz Maia
Propolis is a resin produced by bees from raw material collected from plants, salivary secretions, and beeswax. New therapeutic properties for the Central Nervous System have emerged. We explored the neurobehavioral and antioxidant effects of an ethanolic extract of yellow propolis (EEYP) rich in triterpenoids, primarily lupeol and β-amyrin. Male Wistar rats, 3 months old, were intraperitoneally treated with Tween 5% (control), EEYP (1, 3, 10, and 30 mg/kg), or diazepam, fluoxetine, and caffeine (positive controls) 30 min before the assays...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27819273/neovestitol-an-isoflavonoid-isolated-from-brazilian-red-propolis-reduces-acute-and-chronic-inflammation-involvement-of-nitric-oxide-and-il-6
#15
Marcelo Franchin, David F Colón, Marcos G da Cunha, Fernanda V S Castanheira, André L L Saraiva, Bruno Bueno-Silva, Severino M Alencar, Thiago M Cunha, Pedro L Rosalen
Isoflavonoids have been largely studied due to their distinct biological activities identified thus far. Herein, we evaluated the activity of neovestitol, an isoflavonoid isolated from Brazilian red propolis, in acute and chronic inflammation. As for acute inflammation, we found that neovestitol reduced neutrophil migration, leukocyte rolling and adhesion, as well as expression of ICAM-1 in the mesenteric microcirculation during lipopolysaccharide-induced acute peritonitis. No changes were observed in the levels of TNF-α, CXCL1/KC and CXCL2/MIP-2 upon pretreatment with neovestitol...
November 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27818739/erratum-to-propolis-inhibits-neurite-outgrowth-in-differentiating-sh-sy5y-human-neuroblastoma-cells-toxicol-res-32-2016-239-243
#16
Han Bit Kim, Byung Sun Yoo
[This corrects the article on p. 239 in vol. 32, PMID: 27437091.].
October 2016: Toxicological Research
https://www.readbyqxmd.com/read/27818737/propolis-inhibits-uva-induced-apoptosis-of-human-keratinocyte-hacat-cells-by-scavenging-ros
#17
Han Bit Kim, Byung Sun Yoo
Propolis is a resinous material collected by honeybees from several plant sources. This research aimed at showing its protective effect against UVA-induced apoptosis of human keratinocyte HaCaT cells. Using Hoechst staining, it was demonstrated that propolis (5 and 10 μg/mL) significantly inhibited the apoptosis of HaCaT cells induced by UVA-irradiation. Propolis also showed the protective effect against loss of mitochondrial membrane potential induced by UVA-irradiaiton in HaCaT cells. Propolis also inhibited the expression of activated caspase-3 induced by UVA-irradiation...
October 2016: Toxicological Research
https://www.readbyqxmd.com/read/27818124/chrysin-promotes-attenuation-of-depressive-like-behavior-and-hippocampal-dysfunction-resulting-from-olfactory-bulbectomy-in-mice
#18
Carlos Borges Filho, Cristiano Ricardo Jesse, Franciele Donato, Lucian Del Fabbro, Marcelo Gomes de Gomes, André Tiago Rossito Goes, Leandro Cattelan Souza, Silvana Peterini Boeira
Chrysin is a natural flavonoid which is found in bee propolis, honey and various plants, and antidepressant-like effect of chrysin in chronically stressed mice was previously demonstrated by our group. In this work, we investigated the action of chrysin treatment (5 or 20 mg/kg) for 14 days in the depressant-like behavior and in the hippocampal dysfunction induced by olfactory bulbectomy (OB), an animal model of agitated depression. Results demonstrated that OB occasioned a depressant-like behavior in the splash test, open field test and forced swimming test...
November 3, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27810783/evaluation-of-the-mirna-profiling-and-effectiveness-of-the-propolis-on-b-cell-acute-lymphoblastic-leukemia-cell-line
#19
Ugur Cem Yilmaz, Bakiye Goker Bagca, Emin Karaca, Asude Durmaz, Burak Durmaz, Ayca Aykut, Husniye Kayalar, Cigir Biray Avci, Sunde Yilmaz Susluer, Cumhur Gunduz, Ozgur Cogulu
Acute lymphoblastic leukemia (ALL) is one of the most frequent causes of death from cancer. Since the discovery of chemotherapeutic agents, ALL has become a model for improvement of survival. In parallel to this, serious side effects were observed and new natural therapeutic options has been discussed. One of these substances is called propolis which is a resinous substance gathered by honeybees. In the molecular era, miRNAs have been shown to play crucial roles in the development of many clinical conditions...
October 27, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27802316/chemical-characterization-and-antioxidant-antimicrobial-and-anti-inflammatory-activities-of-south-brazilian-organic-propolis
#20
Ana Paula Tiveron, Pedro Luiz Rosalen, Marcelo Franchin, Risia Cristina Coelho Lacerda, Bruno Bueno-Silva, Bruna Benso, Carina Denny, Masaharu Ikegaki, Severino Matias de Alencar
South Brazilian organic propolis (OP), which has never been studied before, was assessed and its chemical composition, scavenging potential of reactive oxygen species, antimicrobial and anti-inflammatory activities are herein presented. Based on the chemical profile obtained using HPLC, OP was grouped into seven variants (OP1-OP7) and all of them exhibited high scavenging activity, mainly against superoxide and hypochlorous acid species. OP1, OP2, and OP3 had the smallest minimal inhibitory concentration (MIC) against Gram-positive bacteria Streptococcus mutans, Streptococcus oralis, and Streptococcus aureus (12...
2016: PloS One
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