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Canan Eroğlu, Ebru Avcı, Hasibe Vural, Ercan Kurar
Sinapic acid (SA) is a derivative of hydroxycinnamic acid and found in various vegetables and fruit species. Aim was to evaluate the anticancer effects of SA in PC-3 and LNCaP human prostate cancer cells. The effect of SA on cell viability was determined using XTT assay. Expressions of 8 genes for apoptosis and 6 genes for metastasis were evaluated by qPCR. Caspase-3 activity was determined using caspase-3 colorimetric assay kit. Effect of SA on cell invasion was evaluated with cell invasion assay. The IC50 dose of SA in PC-3 and LNCaP cells was found to be 1000 μM for 72 h...
May 21, 2018: Gene
Ahmet Özbilgin, İbrahim Çavuş, Ahmet Yıldırım, Tuğba Kaya, Hatice Ertabaklar
OBJECTIVE: Two pentavalent antimonials, meglumine antimoniate (Glucantime®, France) and sodium stibogluconate (Pentostam®, England), are used to treat cutaneous leishmaniasis (CL) in Turkey. The present study, serving as a guidebook for young researchers, aims to provide basis for conducting drug resistance tests and active ingredient scanning in in vitro and in vivo models. METHODS: A CL isolate kept in liquid nitrogen was initially thawed and genotyped by real-time polymerase chain reaction (PCR) using ITS1 prob...
March 2018: Türkiye Parazitolojii Dergisi
Mehmet B Özel, Tamer Tüzüner, Zeynep A Güplü, Nichola J Coleman, Andrew P Hurt, Celai K Buruk
The aim of this study was to evaluate the impact of 10 wt% benzalkonium chloride (TB-BAC) or 10 wt% cetylpyridinium chloride (TB-CPC) on the antimicrobial properties of the orthodontic adhesive primer, Transbond XTT (TB). Antimicrobial activity was assessed using a zone of inhibition diffusion test and the release of the antimicrobial compounds was monitored by high performance liquid chromatography (HPLC). Shear bond strength (SBS) was tested using bovine enamel. Control, TB, specimens failed to demonstrate intrinsic antibacterial activity at 1, 7 and 14 days; whereas, TB-BAC and TB-CPC showed antibacterial effects at all times...
December 2017: Acta Odontológica Latinoamericana: AOL
Karen K L Chan, Michelle K Y Siu, Yu-Xin Jiang, Jing-Jing Wang, Thomas H Y Leung, Hextan Y S Ngan
Background: Ovarian cancer is the most lethal gynaecological malignancy. Chemotherapy is the main stay of treatment for metastatic disease, with modest response rates but significant side effects. Therefore, there is a need for alternative therapies that can control the disease while offering good quality of life. Ovarian cancer cells express both estrogen receptor subtypes (ERα and ERβ). There is growing evidence that ERβ is anti-oncogenic. Genistein and daidzein are phytoestrogens found in soybeans and they display higher affinity to bind ERβ...
2018: Cancer Cell International
Yu-Shih Lin, Yin-Yin Lin, Yao-Hsu Yang, Chun-Liang Lin, Feng-Che Kuan, Cheng-Nan Lu, Geng-He Chang, Ming-Shao Tsai, Cheng-Ming Hsu, Reming-Albert Yeh, Pei-Rung Yang, I-Yun Lee, Li-Hsin Shu, Yu-Ching Cheng, Hung-Te Liu, Kuan-Der Lee, De-Ching Chang, Ching-Yuan Wu
BACKGROUND: Breast cancer is the most common cancer in women and affects 1.38 million women worldwide per year. Antiestrogens such as tamoxifen, a selective estrogen receptor (ER) modulator, are widely used in clinics to treat ER-positive breast tumors. However, remissions of breast cancer are often followed by resistance to tamoxifen and disease relapse. Despite the increasing understanding of the resistance mechanisms, effective regimens for treating tamoxifen-resistant breast cancer are limited...
May 9, 2018: BMC Complementary and Alternative Medicine
Rabia Cakir-Koc, Yasemin Budama-Kilinc, Yagmur Kokcu, Serda Kecel-Gunduz
Toxoplasma gondii is one of the most widely spread parasitic organisms in the world. T. gondii causes primary, chronic infection and mortality. Major surface antigen 1 is the most abundant tachyzoite surface protein and highly conserved between species and causes strong humoural response. Some studies showed that the peptide sequence of surface antigen has immunity. Therefore, tachyzoite surface antigenic peptide sequence is one of the good candidates for vaccine development. However, conformational information and delivery systems are very important parameters for vaccine development...
May 9, 2018: Artificial Cells, Nanomedicine, and Biotechnology
Ortal Danino, Shuli Svetitsky, Sarah Kenigsberg, Asaf Levin, Shani Journo, Aviram Gold, Michael Drexler, Nimrod Snir, Ori Elkayam, Bilha Fischer, Uri Arad
Objectives: Calcium pyrophosphate deposition (CPPD) is associated with osteoarthritis and is the cause of a common inflammatory articular disease. Ecto-nucleotide pyrophosphatase/phosphodiesterase 1 (eNPP1) is the major ecto-pyrophosphatase in chondrocytes and cartilage-derived matrix vesicles (MVs). Thus, eNPP1 is a principle contributor to extracellular pyrophosphate levels and a potential target for interventions aimed at preventing CPPD. Recently, we synthesized and described a novel eNPP1-specific inhibitor, SK4A, and we set out to evaluate whether this inhibitor attenuates nucleotide pyrophosphatase activity in human OA cartilage...
April 24, 2018: Rheumatology
P Diogo, M Mota, C Fernandes, D Sequeira, P Palma, F Caramelo, M G P M S Neves, M A F Faustino, T Gonçalves, J M Santos
BACKGROUND: The aim of this study was to assess antimicrobial efficacy and cytotoxic outcomes of a chlorophyll based photosensitizer (PS) Zn(II)chlorin e6 methyl ester (Zn(II)e6 Me), when applied to human dentin discs and root blocks infected with 48 h biofilms. The results were compared with the ones obtained with FotoSan® (commercial Toluidine Blue O formulation) and 3% sodium hypochlorite (NaOCl). METHODOLOGY: Dentin and root blocks were infected with mixed biofilms of Enterococcus faecalis and Candida albicans; exposed for 15 min to 0...
April 20, 2018: Photodiagnosis and Photodynamic Therapy
Monique Costa Moreira França, Tânia Mara Da Silva, Gleyce Oliveira Silva, Márcia Carneiro Valera, Carlos Henrique Ribeiro Camargo
BACKGROUND/AIMS: Dental root cell proliferation following tooth avulsion has not been well researched. Understanding the effects of dry time and dentin treatment influences on cell proliferation is essential to provide evidence-based guidelines for tooth replantation. The study evaluated the viability of periodontal ligament fibroblasts (PLF) in contact with roots, submitted to surface treatments with EDTA and hyaluronic acid (HA) at different times, including to quantify inflammatory cytokines IL-6, IL-8, IL-1β and TNF-α expressed by PLF...
April 17, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
Ranjith Kumar Manoharan, Jin-Hyung Lee, Jintae Lee
Certain pathogenic bacteria and yeast form biofilms on biotic and abiotic surfaces including medical devices and implants. Hence, the development of antibiofilm coating materials becomes relevant. The virulence of those colonizing pathogens can be reduced by inhibiting biofilm formation rather than killing pathogens using excessive amounts of antimicrobials, which is touted as one of the main reasons for the development of drug resistance. Candida albicans is an opportunistic fungal pathogen, and the transition of yeast cells to hyphal cells is believed to be a crucial virulence factor...
April 15, 2018: Microbial Biotechnology
Graciela Del Valle Castillo, Silvia López de Blanc, Claudia Elena Sotomayor, Ana Isabel Azcurra
OBJECTIVE: The aim of this study was to explore the association between malignant and premalignant lesions and the virulence factor profile of Candida spp. recovered from different oral lesions. DESIGN: Candida spp. isolated from malignant lesions (squamous cell carcinoma, OC, n = 25), atypical lichen planus (AL, n = 11), chronic candidiasis (CC, n = 25), and asymptomatic carriers (WI, n = 15, control strains.) Isolates were identified in chromogenic medium, colony morphology and biochemical tests...
February 19, 2018: Archives of Oral Biology
Svenja Memmert, Marjan Nokhbehsaim, Anna Damanaki, Andressa V B Nogueira, Alexandra K Papadopoulou, Christina Piperi, Efthimia K Basdra, Birgit Rath-Deschner, Werner Götz, Joni A Cirelli, Andreas Jäger, James Deschner
BACKGROUND: Cathepsin S is a cysteine protease, which is expressed in human periodontal ligament (PDL) cells under inflammatory and infectious conditions. This in vitro study was established to investigate the effect of cathepsin S on PDL cell wound closure. METHODS: An in vitro wound healing assay was used to monitor wound closure in wounded PDL cell monolayers for 72 h in the presence and absence of cathepsin S. In addition, the effects of cathepsin S on specific markers for apoptosis and proliferation were studied at transcriptional level...
April 5, 2018: BMC Oral Health
Sang-Yong Han, Kyung-Hee Lee, Yun-Kyung Kim
Poligoni Multiflori Radix (PMR) is a traditional Korean medicinal herb that is known to have various pharmacological effects, including antihyperlipidemic, anticancer, and anti‑inflammatory effects. However, the effects of PMR on bone metabolism have not been elucidated to date. The present study aimed to investigate the in vitro and in vivo effect of PMR water extract on the regulation of osteoblast and osteoclast activity. Effects of PMR water extract on receptor activator of nuclear factor‑kB ligand (RANKL)‑induced osteoclast differentiation and survival of mouse bone marrow macrophages (BMMs) obtained from femurs were investigated by tartrate‑acid resistant acid phosphatase (TRAP)‑positive cells and XTT assay...
March 30, 2018: International Journal of Molecular Medicine
Yi Zhang, Jia Cao, Yanni Meng, Chunying Qu, Feng Shen, Leiming Xu
Xeroderma pigmentosum group C (XPC) is a DNA-damage-recognition gene active at the early stage of DNA repair. XPC also participates in regulation of cell-cycle checkpoint and DNA-damage-induced apoptosis. In the present study, the expression levels of genes involved in nucleotide excision repair (NER) were assessed in human colorectal cancer (CRC) tissue. This analysis revealed that expression of XPC mRNA significantly increased in colorectal carcinoma tissues compared with matched normal controls. Expression of XPC gradually increased along with the degree of progression of CRC...
May 2018: Oncology Letters
Alline L B Dias, Hellen R F Batista, Elisângela B B Estevam, Cassia C F Alves, Moacir R Forim, Heloiza D Nicolella, Ricardo A Furtado, Denise C Tavares, Thayna S Silva, Carlos H G Martins, Mayker L D Miranda
In this study, the chemical composition and antibacterial and antiproliferative potential of the essential oil obtained from fresh leaves of Psidium myrtoides (PM-EO) against oral pathogens and human tumour cell lines were investigated for the first time. GC-FID and GC-MS analyses showed that trans-β-caryophyllene (30.9%), α-humulene (15.9%), α-copaene (7.8%), caryophyllene oxide (7.3%) and α-bisabolol (5.3%) are the major constituents of PM-EO. The antibacterial activity of PM-EO against a panel of oral pathogens was investigated in terms of their minimal inhibitory concentrations (MIC) using the broth microdilution method...
April 3, 2018: Natural Product Research
Yuko Matsuda, Otomi Cho, Takashi Sugita, Daiki Ogishima, Satoru Takeda
PURPOSE: Vulvovaginal candidiasis (VVC) is a common superficial infection of the vaginal mucous membranes caused by the fungus Candida albicans. The aim of this study was to assess the mechanisms underlying the inhibitory effects of the culture supernatants of Lactobacillus gasseri and L. crispatus, the predominant microbiota in Asian healthy women, on C. albicans biofilm formation. The inhibition of C. albicans adhesion to HeLa cells by Lactobacillus culture supernatant was also investigated...
March 30, 2018: Mycopathologia
Julie Gueudry, Laetitia Le Goff, Patricia Compagnon, Sabine Lefevre, Elodie Colasse, Camille Aknine, François Duval, Arnaud François, Romy Razakandrainibe, Jean Jacques Ballet, Marc Muraine, Loïc Favennec
Background: Acanthamoeba keratitis (AK) is a sight-threatening infectious disease. Its effective and safe medical therapy remains highly debated. Recently, voriconazole, a monotriazole with noted in vitro activity against a large variety of fungi, has been successfully used both topically and systemically to treat human AK cases. Objectives: To measure anti-Acanthamoeba polyphaga in vitro activity, anti-rat AK efficiency and rat cornea penetration of eye-drop and oral voriconazole...
March 27, 2018: Journal of Antimicrobial Chemotherapy
Ilaria Giusti, Marianna Di Francesco, Sandra D'Ascenzo, Maria Grazia Palmerini, Guido Macchiarelli, Gaspare Carta, Vincenza Dolo
It has become clear that non-tumor cells in the microenvironment, especially fibroblasts, actively participate in tumor progression. Fibroblasts conditioned by tumor cells become "activated" and, as such, are identified as CAFs (cancer-associated fibroblasts). These CAFs remodel the tumor stroma to make it more favourable for cancer progression. The aim of this work was to verify whether EVs (extracellular vesicles - whose role as mediators of information between tumor and stromal cells is well known) released from human ovarian cancer cells were able to activate fibroblasts...
March 26, 2018: Cancer Biology & Therapy
S Farisa Banu, D Rubini, P Shanmugavelan, R Murugan, S Gowrishankar, S Karutha Pandian, P Nithyanand
The prevalence and fatality rates with biofilm-associated candidal infections have remained a challenge to the medical fraternity despite major advances in the field of antifungal therapy. Traditionally, essential oils (EOs) from the aromatic plants have been found to be excellent therapeutic agents to treat fungal ailments. The present study explores the antivirulent and antibiofilm effects of under explored leaf EOs of Indian patchouli EO extracted from Pogostemon heyneanus (PH), Indian cassia from Cinnamomum tamala (CT) and camphor EO from C...
March 20, 2018: Journal de Mycologie Médicale
Kristian Leisegang, Ralf Henkel
BACKGROUND: Cytokines and hormones, including insulin, are known to modulate the hypothalamic-pituitary-testes axis and steroidogenesis, both centrally and peripherally. In the context of chronic inflammation and hyperinsulinaemia mediating male hypogonadism associated with obesity, metabolic syndrome and type 2 diabetes mellitus, these mechanisms are poorly understood and the impact of cytokines and insulin on Leydig cell steroidogenesis has not been fully elicited. This study aimed to further investigate the in vitro impact of TNFα, IL1ß, IL6, IL8 and insulin on Leydig cell function and steroidogenesis...
March 22, 2018: Reproductive Biology and Endocrinology: RB&E
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