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https://www.readbyqxmd.com/read/28525954/construction-of-various-%C3%AE-34-5-deleted-fluorescent-expressing-oncolytic-herpes-simplex-type-1-ohsv-for-generation-and-isolation-of-hsv-based-vectors
#1
Shahriyar Abdoli, Farzin Roohvand, Ladan Teimoori-Toolabi, Mohammad Ali Shokrgozar, Mina Bahrololoumi, Kayhan Azadmanesh
Background: Oncolytic herpes simplex virus (oHSV)-based vectors lacking γ34.5 gene, are considered as ideal templates to construct efficient vectors for (targeted) cancer gene therapy. Herein, we reported the construction of three single/dually-flourescence labeled and γ34.5-deleted, recombinant HSV-1 vectors for rapid generation and easy selection/isolation of different HSV-Based vectors. Methods: Generation of recombinant viruses was performed with conventional homologous recombination methods using green fluorescent protein (GFP) and BleCherry harboring shuttle vectors...
July 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28518180/the-effects-of-laser-with-different-parameters-and-crosshatching-on-fibroblast-adhesion-and-proliferation-to-implant-surfaces
#2
Hakki Çelebi, Pembegül Uyar Arpacı, Ilhami Çelik, Serhan Akman
PURPOSE: To compare the adhesion and proliferation effect of HGF-1 cells on pure titanium disks when the surfaces are unprocessed (machined surfaces after slicing) or modified with a laser. MATERIALS AND METHODS: Twenty-eight titanium disks were divided into four groups. Three surface topographies were created using an erbium fiber laser: group 1 (unidirectional application [no crosshatch]), group 2 (crosshatching in two directions), and group 3 (crosshatching in three directions)...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28512704/pseudomonas-aeruginosa-inhibits-the-growth-of-scedosporium-and-lomentospora-in-vitro
#3
Sharon C-A Chen, Shilpa Patel, Wieland Meyer, Belinda Chapman, Hong Yu, Karen Byth, Peter G Middleton, Helena Nevalainen, Tania C Sorrell
In vitro bacterial-fungal interaction studies in cystic fibrosis (CF) have mainly focused on interactions between bacteria and Candida. Here we investigated the effect of Pseudomonas aeruginosa on the growth of Scedosporium/Lomentospora spp. Standard suspensions of P. aeruginosa (16 non-mucoid and nine mucoid isolates) were dropped onto paper disks, placed on lawns of Lomentospora prolificans (formerly Scedosporium prolificans) strain WM 14.140 or Scedosporium aurantiacum strain WM 11.78 on solid agar. The median inhibitory activity (mIz) was calculated for each fungal-bacterial combination...
May 16, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28506752/thio-functionalized-carbohydrate-thiosemicarbazones-and-evaluation-of-their-anticancer-activity
#4
Anna Czubatka-Bieńkowska, Joanna Sarnik, Anna Macieja, Grzegorz Galita, Zbigniew J Witczak, Tomasz Poplawski
Thiosemicarbazides and their analogs have shown potential medical applications as antiviral, antibacterial and anticancer drugs. We designed, synthesized and evaluated in vitro anticancer activity against ovarian (A2780), cervix (HeLa), colon (LoVo), breast (MCF-7) and brain (MO59J) human cancer cell lines of seven novel compounds -S-glycosylated thiosemicarbazones. We assessed the cyto- and genotoxic properties of all novel compounds using a variety of methods including comet assay, XTT assay, various fluorescent assays and toxicology PathwayFinder expression array...
April 21, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28504319/biological-response-of-commercially-available-different-tricalcium-silicate-based-cements-and-pozzolan-cement
#5
Serhat Köseoğlu, Tuğba Pekbağr Yan K, Ebru Kucukyilmaz, Mehmet Sağlam, Sukru Enhos, Ayşe Akgün
This study evaluated four root repair materials for cytotoxicity and cell attachment in vitro. Cell viability was determined at 24 hr, 3 days and 7 days by using a 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide (XTT) assay with material extracts. Cell adhesion was examined with a scanning electron microscope on the surface of materials at 24 and 48 hr. Angelus MTA displayed the lowest cell viabilities at all-day incubations. Endocem had high biocompatibility on the first day. After culturing for 3 days and 7 days, the cell viabilities of Biodentine, Endocem and MM-MTA had similar results, and their cell viability was significantly higher than that of Angelus...
May 15, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28493889/characterization-of-a-novel-antibiofilm-effect-of-nitric-oxide-releasing-aspirin-ncx-4040-on-candida-albicans-isolates-from-denture-stomatitis-patients
#6
Francisco Madariaga-Venegas, Roberto Fernández-Soto, Luisa Fernanda Duarte, Nicole Suarez, Daniela Delgadillo, José A Jara, Ricardo Fernández-Ramires, Blanca Urzúa, Alfredo Molina-Berríos
Candida albicans biofilms play a key role in denture stomatitis, one of the most common oral pathologies in elderly people. Because biofilms are highly resistant to antifungals, new pharmacological strategies are needed. Aspirin and nitric oxide-donor molecules have both shown antibiofilm effects on C. albicans, making them promising candidates for treatment. In this study, we evaluated the antifungal/antibiofilm effect of a nitric-oxide releasing aspirin (NO-ASA) on C. albicans isolates from denture stomatitis patients in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28484691/inflammatory-effects-of-the-plant-protection-product-stifenia-fen560-on-vertebrates
#7
Lény Teyssier, Julie Colussi, Stéphanie Delemasure, Johanna Chluba, David Wendehenne, Olivier Lamotte, Jean-Louis Connat
Plant defense stimulators (PDSs) rely on the activation of plant innate immunity in order to protect crops against various pests. These molecules are thought to be a safer alternative to classical plant protection products. Given that innate immune systems share common features in plants and vertebrates, PDS can potentially cross-react with innate immunity of non-target organisms. To test this hypothesis, we studied effects of the commercial PDS Stifenia (FEN560), which is composed of crushed fenugreek seeds...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28480426/in-vitro-chemo-preventative-activity-of-strelitzia-nicolai-aril-extract-containing-bilirubin
#8
Depika Dwarka, Veneesha Thaver, Mickey Naidu, Neil A Koorbanally, And Himansu Baijnath
BACKGROUND: The discovery of the only animal pigment, bilirubin, in the plant Strelitzia nicolai has triggered a vast number of questions regarding bilirubin's formation and its role in the human body. Recent studies have confirmed that bilirubin at certain levels have many medical benefits. Various case studies have revealed that bilirubin is a potent antioxidant. Cervical cancer is one of South Africa's largest womens' health crises. It is estimated that it affects one out of 41 South African women and kills approximately 8 women in the country every day...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28476714/investigation-of-anti-proliferative-and-antioxidative-effects-of-some-bis-%C3%AE-amino-phosphinic-acid-derivatives
#9
Taner Dastan, Sevgi Durna Dastan, Mehmet Atas, Cahit Orek, Pelin Koparir, Akif Evren Parlak, Inanc Baral, Metin Koparir, Ahmet Cetin
Aminophosphinic acids which are organophosphorus compounds widely investigated for potential production of antibacterial, antitumor and antiviral materials. In vitro antioxidant, cytotoxic and antimicrobial activities of synthesized novel compounds of 8 different bis(β-amino alkyl)phosphinic acids (4a-h) were investigated on MCF-7 breast adenocarcinoma cell and human umbilical vein endothelial cell (HUVEC) cultures. Malondialdehyde (MDA) levels were evaluated as an indication of lipid peroxidation in cell cultures for antioxidant capacities...
September 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28473992/hepatotoxicity-of-antimycotics-used-for-invasive-fungal-infections-in-vitro-results
#10
Sandra Doß, Heike Potschka, Fanny Doß, Steffen Mitzner, Martin Sauer
Purpose. Drug-induced liver injury (DILI) is the most common cause of liver injury and a serious clinical problem; antimycotics are involved in approximately 3% of all DILI cases. The hepatotoxicity of many drugs, including the antimycotics, is poorly screened in human models. Methods. In a standardized assay the cytotoxicity on hepatocytes of different concentrations (Cmax, 5x Cmax, and 10x Cmax) of the antimycotics used for systemic infections was tested. Anidulafungin (ANI), liposomal amphotericerin B (L-AmB), caspofungin (CASPO), fluconazole (FLUCO), and voriconazole (VORI) were incubated with HepG2/C3A cells...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28470141/a-comparative-study-of-electronic-cigarette-vapor-extracts-on-airway-related-cell-lines-in-vitro
#11
Laura J Leslie, Pranav Vasanthi Bathrinarayanan, Pamela Jackson, Justin A Mabiala Ma Muanda, Ross Pallett, Christopher J P Stillman, Lindsay J Marshall
The use of electronic cigarettes (ECs) is rapidly increasing worldwide; however, scientific evidence regarding EC cytotoxicity is limited. The aim of this study was to evaluate the acute cytotoxicity of EC vapor extract (ECE) on airway-related cells in vitro. Cigarette smoke extract (CSE), vapor extract of fifteen brands/flavors of ECs and the extract from the E-vehicle (propylene glycol and glycerin) was collected. Extracts, in concentrations of 100-12.5%, were added to human bronchial epithelial (BEAS-2B, IB3-1 and C38), fibroblast (Wi-38) and macrophage (J774 and THP-1) cell lines...
February 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/28454469/regulation-of-cytotoxicity-and-apoptosis-associated-pathways-contributes-to-the-enhancement-of-efficacy-of-cisplatin-by-baicalein-adjuvant-in-human-a549-lung-cancer-cells
#12
Suparata Kiartivich, Ying Wei, Jiaqi Liu, Rungtip Soiampornkul, Mihui Li, Hongying Zhang, Jingcheng Dong
Scutellaria baicalensis (SB; Chinese name, huangqin) is widely used in Chinese medicine as a traditional adjuvant in the chemotherapy of lung and liver cancer. Baicalein is one of the bioactive flavonoid components isolated from the root of SB. The present study aimed to observe the effect of baicalein, in combination with platin-based systemic chemotherapy (cisplatin), on cytotoxicity and apoptosis of human A549 lung cancer cells. The cell cultures were treated with baicalein, cisplatin, or a combination of the two...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454445/role-of-reactive-oxygen-species-in-the-anticancer-activity-of-botanicals-comparing-sensitivity-profiles
#13
Zoya Cohen, Yair Maimon, Noah Samuels, Raanan Berger
Numerous botanicals have been shown to exhibit in vitro and in vivo anticancer activity, some of which is the result of the induction of reactive oxygen species (ROS) in cancer cells with a high ROS content. The present study compared sensitivities to a series of botanicals among cancer cell lines, using an XTT viability test, in order to create a specific cancer-herb profile. Of the 27 botanicals screened, 10 exhibited a cytotoxic effect, 7 of which were ROS-mediated. The sensitivity profiles of the ROS-inducing botanicals in 10 cancer cell lines were similar, unlike 3 cytotoxic ROS-independent botanicals that displayed divergent botanical-specific profiles...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28438935/candida-guilliermondii-complex-is-characterized-by-high-antifungal-resistance-but-low-mortality-a-report-on-22-cases-of-candidemia
#14
Laura Judith Marcos-Zambrano, Mireia Puig-Asensio, Felipe Pérez-García, Pilar Escribano, Carlos Sánchez-Carrillo, Oscar Zaragoza, Belén Padilla, Manuel Cuenca-Estrella, Benito Almirante, M Teresa Martin-Gómez, Patricia Muñoz, Emilio Bouza, Jesús Guinea
Objectives: The objectives of our study were to describe the characteristics of patients infected with C. guilliermondii candidemia and to perform an in-depth microbiological characterization of isolates and compare them with those of patients with C. albicans candidemia.Methods: We described the risk factors and outcome of 22 patients with candidemia caused by C. guilliermondii complex. Incident isolates were identified using molecular techniques, and susceptibility to fluconazole, anidulafungin and micafungin was studied...
April 24, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28433743/the-antibiotic-polymyxin-b-exhibits-novel-antifungal-activity-against-fusarium-species
#15
Li-Hang Hsu, Hsuan-Fu Wang, Pei-Lun Sun, Fung-Rong Hu, Ying-Lien Chen
The genus Fusarium comprises many species, including Fusarium oxysporum, Fusarium solani, Fusarium graminearum and Fusarium verticillioides, and causes severe infections in plants and humans. In clinical settings, Fusarium is the third most frequent mould to cause invasive fungal infections after Aspergillus and the Mucorales. F. solani and F. oxysporum are the most prevalent Fusarium spp. causing clinical disease. However, few effective antifungal drugs are available to treat human and plant Fusarium infections...
June 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28422057/antifungal-and-anti-biofilm-activities-of-acetone-lichen-extracts-against-candida-albicans
#16
Marion Millot, Marion Girardot, Lucile Dutreix, Lengo Mambu, Christine Imbert
Candida albicans is a commensal coloniser of the human gastrointestinal tract and an opportunistic pathogen, especially thanks to its capacity to form biofilms. This lifestyle is frequently involved in infections and increases the yeast resistance to antimicrobials and immune defenses. In this context, 38 lichen acetone extracts have been prepared and evaluated for their activity against C. albicans planktonic and sessile cells. Minimum inhibitory concentrations of extracts (MICs) were determined using the broth microdilution method...
April 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28417524/biofilms-of-candida-spp-from-the-ocular-conjunctiva-of-horses-with-reduced-azole-susceptibility-a-complicating-factor-for-the-treatment-of-keratomycosis
#17
Raimunda Sâmia Nogueira Brilhante, Paula Vago Bittencourt, Débora de Souza Collares Castelo-Branco, Glaucia Morgana de Melo Guedes, Jonathas Sales de Oliveira, Lucas Pereira Alencar, Rossana de Aguiar Cordeiro, Mariana Pinheiro, Evilázio Fernandes Nogueira-Filho, Waldemiro de Aquino Pereira-Neto, José Júlio Costa Sidrim, Marcos Fábio Gadelha Rocha
OBJECTIVES: This study aimed to assess the biofilm-forming ability of Candida spp. from the ocular conjunctiva of horses and to investigate the antifungal susceptibility of these biofilms. PROCEDURES: Initially, the biofilm-forming ability of 15 strains was assessed by crystal violet staining, which reveals the fungal biomass adhered to the polystyrene plates, and scanning electron microscopy. Then, the minimum inhibitory concentrations (MICs) of amphotericin B, fluconazole, itraconazole, and caspofungin were initially determined against strains in planktonic form...
April 18, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28415427/surface-physical-chemistry-properties-in-coated-bacterial-cellulose-membranes-with-calcium-phosphate
#18
Gabriel Molina de Olyveira, Pierre Basmaji, Ligia Maria Manzine Costa, Márcio Luiz Dos Santos, Carla Dos Santos Riccardi, Fernando Pozzi Semeghini Guastaldi, Raquel Mantuaneli Scarel-Caminaga, Ticiana Sidorenko de Oliveira Capote, Elisabeth Pizoni, Antônio Carlos Guastaldi
Bacterial cellulose has become established as a new biomaterial, and it can be used for medical applications. In addition, it has called attention due to the increasing interest in tissue engineering materials for wound care. In this work, the bacterial cellulose fermentation process was modified by the addition of chondroitin sulfate to the culture medium before the inoculation of the bacteria. The biomimetic process with heterogeneous calcium phosphate precipitation of biological interest was studied for the guided regeneration purposes on bacterial cellulose...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28414038/modulation-of-staphylococcus-epidermidis-rp62a-extracellular-polymeric-layer-by-marine-cyclic-dipeptide-cyclo-l-leucyl-l-prolyl-thwarts-biofilm-formation
#19
Shanmugaraj Gowrishankar, Shunmugiah Karutha Pandian
Staphylococcus epidermidis is the most frequent cause of biofilm mediated implant-associated infections. Extracellular polymeric substance (EPS) is a key component of most biofilms and in pathogens it specifically protects the entrenched-bacterial cells from antibiotics and hosts immune response, and thereby makes the infection ineradicable. Recently, the prominence of cyclic dipeptides in interfering with biofilms and the associated virulence factors of pathogens has offered an alternative to eliminate difficult-to-treat infections...
July 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28408902/the-naturally-occurring-host-defense-peptide-ll-37-and-its-truncated-mimetics-ke-18-and-kr-12-have-selected-biocidal-and-antibiofilm-activities-against-candida-albicans-staphylococcus-aureus-and-escherichia-coli-in-vitro
#20
Yu Luo, Denise T F McLean, Gerard J Linden, Danny F McAuley, Ronan McMullan, Fionnuala T Lundy
Amongst the recognized classes of naturally occurring antimicrobials, human host defense peptides are an important group with an advantage (given their source) that they should be readily translatable to medicinal products. It is also plausible that truncated versions will display some of the biological activities of the parent peptide, with the benefit that they are less costly to synthesize using solid-phase chemistry. The host defense peptide, LL-37, and two truncated mimetics, KE-18 and KR-12, were tested for their inhibitory effects and antibiofilm properties against Candida albicans, Staphylococcus aureus, and Escherichia coli, microorganisms commonly implicated in biofilm-related infections such as ventilator-associated pneumonia (VAP)...
2017: Frontiers in Microbiology
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