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https://www.readbyqxmd.com/read/28719354/thymol-and-carvacrol-strongly-inhibit-biofilm-formation-and-growth-of-carbapenemase-producing-gram-negative-bacilli
#1
P Raei, T Pourlak, M Y Memar, N Alizadeh, M Aghamali, E Zeinalzadeh, M Asgharzadeh, H S Kafil
Discovery of novel drugs with new mechanisms of action and without cross-reaction with current therapeutic agents is crucial in the management of infections caused by multi-drug resistant (MDR) bacteria. The aim of the present study was to investigate effects of carvacrol and thymol on biofilm formation and antimicrobial activity against different carbapenemase-producing Gram negative bacilli. The antimicrobial and antibiofilm effect of thymol and carvacrol was investigated against strains harboring different genes related to carbapenemase resistance...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28718722/anticarcinogenic-effects-of-dried-citrus-peel-in-colon-carcinogenesis-due-to-inhibition-of-oxidative-stress
#2
Wakana Onuma, Daichi Asai, Susumu Tomono, Shingo Miyamoto, Gen Fujii, Takahiro Hamoya, Aya Nagano, Satoru Takahashi, Shoji Masumori, Noriyuki Miyoshi, Keiji Wakabayashi, Michihiro Mutoh
Colorectal cancer is one of the leading causes of death worldwide. Reactive oxygen species produce oxidative stress and contribute to colorectal carcinogenesis. Because dietary citrus has been shown to reduce oxidative stress, we investigated the effects of citrus peel extract at dilutions of 1/200-1/500 on the activity of oxidative-stress-related transcription factors, including AP-1, NF-κB, NRF2, p53, and STAT3, in human colon cancer cell line HCT116 cells using a luciferase reporter gene assay. NRF2 transcriptional activities were 1...
July 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28717879/comparison-of-the-effect-of-activated-or-non-activated-prp-in-various-concentrations-on-osteoblast-and-fibroblast-cell-line-proliferation
#3
Surena Vahabi, Zahra Yadegari, Hossein Mohammad-Rahimi
Platelet-rich plasma (PRP) contains growth factors which positively affect cell proliferation, cell differentiation, chemotaxis and intracellular matrix synthesis. All these processes are involved in wound healing and tissue regeneration; thus, PRP as a source of growth factors can be used in periodontal regenerative therapies. The purpose of the present study was to assess the effect of various concentrations of activated and non-activated PRP on proliferation of osteoblasts and fibroblasts in vitro. PRP was obtained from three healthy volunteers...
July 17, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28717321/effect-of-different-concentrations-of-soybean-lecithin-and-virgin-coconut-oil-in-tris-based-extender-on-the-quality-of-chilled-and-frozen-thawed-bull-semen
#4
A A Tarig, H Wahid, Y Rosnina, N Yimer, Y M Goh, F H Baiee, A M Khumran, H Salman, M A Assi, M Ebrahimi
AIM: The objective of this study was to evaluate the effects of different concentrations of soybean lecithin (SL) and virgin coconut oil (VCO) in Tris-based extender on chilled and frozen-thawed bull semen quality parameters. MATERIALS AND METHODS: A total of 24 ejaculates were collected from four bulls via an electroejaculator. Semen samples were diluted with 2% VCO in Tris-based extender which consists of various concentrations of SL (1, 1.25, 1.5, and 1.75%)...
June 2017: Veterinary World
https://www.readbyqxmd.com/read/28717311/using-real-time-polymerase-chain-reaction-as-an-alternative-rapid-method-for-enumeration-of-colony-count-in-live-brucella-vaccines
#5
Waleed S Shell, Mahmoud L Sayed, A A Samy, Ghada Mohamed Al-Sadek, Gina Mohamed Mohamed Abd El-Hamid, Abdel Hakam M Ali
AIM: Brucellosis is a major bacterial zoonosis of global importance affecting a range of animal species and man worldwide. It has economic, public health, and bio-risk importance. Control and prevention of animal brucellosis mainly depend on accurate diagnostic tools and implementation of effective and safe animal vaccination program. There are three types of animal Brucella live vaccines - Brucella melitensis Rev-1 vaccine, Brucella abortus S19, and B. abortus RB51. Evaluation of these vaccines depends mainly on enumeration of Brucella viable count...
June 2017: Veterinary World
https://www.readbyqxmd.com/read/28716753/the-structure-activity-relationship-between-polysaccharides-from-sargassum-thunbergii-and-anti-tumor-activity
#6
Weihua Jin, Wenjing Zhang, Ge Liu, Jianting Yao, Tifeng Shan, Chaomin Sun, Quanbin Zhang
Polysaccharides derived from Sargassum thunbergii were prepared to investigate the structure-activity relationship between polysaccharides and anti-tumor activity in vitro. Many factors were examined. Overall, STW (polysaccharide extracted by hot water) had the best activity, followed by STJ (polysaccharide extracted by dilute alkali), and then STA (polysaccharide extracted by dilute acid). Location of algae had no effect at 500μg/mL and 1000μg/mL, while STW-QD (algae collected from Qingdao, China) had the best activity, followed by STW-WZ (algae collected from Wenzhou, China) and STW-LJ (algae collected from Lianjiang, China) and then STW-DL (algae collected from Dalian, China) and STW-RC (algae collected from Rongcheng, China) at 250μg/mL...
July 14, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28715789/quantification-of-idp-73152-a-novel-antibiotic-in-plasma-from-mice-rats-and-humans-using-an-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry-method-for-use-in-pharmacokinetic-studies
#7
Myongjae Lee, Dohee Kim, Jeongcheol Shin, Hee-Yeol Lee, Soobong Park, Hong-Sub Lee, Jae-Hoon Kang, Suk-Jae Chung
IDP-73152, a novel inhibitor of a bacterial peptide deformylase, was recently approved as a new, investigational drug in Korea for the clinical management of infections caused by Gram positive bacteria. The objective of this study was to develop/validate a simple and robust analytical method for the determination of IDP-73152 in plasma samples from rodents and humans, and to assess the feasibility of the assay for use in pharmacokinetic studies using animal models. Plasma samples were processed using a standard method for protein precipitation and an aliquot of the extract then injected onto an UHPLC-MS/MS system...
July 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28715218/a-universal-spectroscopic-map-for-the-oh-stretching-mode-in-alcohols
#8
Oluwaseun O Mesele, Ward H Thompson
Empirical maps are presented for the OH stretching vibrations in neat alcohols in which the relevant spectroscopic quantities are expressed in terms of the electric field exerted on the hydrogen atom by the surrounding liquid. It is found, by examination of the four lowest linear alcohols, methanol, ethanol, n-propanol, and n-butanol, that a single map can be used for alcohols with different alkyl groups. This "universal" map is in very good agreement with maps optimized for the individual alcohols, but differs from those previously developed for water...
July 17, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28715170/double-soft-template-synthesis-of-nitrogen-sulfur-codoped-hierarchically-porous-carbon-materials-derived-from-protic-ionic-liquid-for-supercapacitor
#9
Li Sun, Hua Zhou, Li Li, Ying Yao, Haonan Qu, Chengli Zhang, Shanhu Liu, Yanmei Zhou
Heteroatom-doped hierarchical porous carbon materials derived from the potential precursors and prepared by a facile, effective and low-pollution strategy have recently been particularly concerned in different research fields. In this study, the interconnected nitrogen/sulfur-codoped hierarchically porous carbon materials have been successfully obtained via one-step carbonization of the self-assembly of [Phne][HSO4] (a protic ionic liquid originated from dilute sulfuric acid and phenothiazine by a straight-forward acid-base neutralization) and the double soft-template of OP-10 and F-127...
July 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28715079/recharge-and-groundwater-flow-within-an-intracratonic-basin-midwestern-united-states
#10
Samuel V Panno, Zohreh Askari, Walton R Kelly, Thomas M Parris, Keith C Hackley
The conservative nature of chloride (Cl(-) ) in groundwater and the abundance of geochemical data from various sources (both published and unpublished) provided a means of developing, for the first time, a representation of the hydrogeology of the Illinois Basin on a basin-wide scale. The creation of Cl(-) isocons superimposed on plan view maps of selected formations and on cross sections across the Illinois Basin yielded a conceptual model on a basin-wide scale of recharge into, groundwater flow within and through the Illinois Basin...
July 17, 2017: Ground Water
https://www.readbyqxmd.com/read/28714407/update-of-standard-practices-for-new-method-validation-in-forensic-toxicology
#11
Sarah M R Wille, Wim Coucke, Thierry De Baere, Frank T Peters
: International agreement concerning validation guidelines is important as reporting reliable analytical data is the backbone of forensic bioanalytical research and applications. Guidelines such as those provided by the US Food and Drug Administration (FDA), the European Medicines Agency (EMA), the German speaking Gesellschaft für Toxikologie und Forensische Chemie (GTFCH) and the Scientific Working Group of Forensic Toxicology (SWGTOX) provide a standard for fundamental validation parameters such as selectivity, matrix effects, method limits, calibration, accuracy and stability, as well as other parameters such as carryover, dilution integrity and incurred sample reanalysis...
July 14, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28714237/effects-of-intracameral-ascorbic-acid-on-the-corneal-endothelium-of-dogs-undergoing-phacoemulsification
#12
Ivan R M Padua, Gisele P Valdetaro, Tiago B Lima, Karina K Kobashigawa, Paloma E S Silva, Marcela Aldrovani, Pedro P M Padua, Jose L Laus
OBJECTIVE: Cataracts are the most common ocular disorder in dogs. Phacoemulsification is the preferred treatment method among ophthalmologists, but the cellularity of the endothelium must be considered for its success, as endothelial lesions may produce permanent corneal decompensation. The objective of this study was to evaluate the effects of intracameral ascorbic acid, a known antioxidant, on the corneal endothelium of dogs undergoing phacoemulsification. ANIMAL STUDIED: In all, 40 eyes from 20 dogs, males and females from 7 to 12 years of age, were assessed for mature cataracts...
July 17, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28712963/anti-quorum-sensing-activity-of-pistacia-atlantica-against-pseudomonas-aeruginosa-pao1-and-identification-of-its-bioactive-compounds
#13
H Kordbacheh, F Eftekhar, S N Ebrahimi
Pseudomonas aeruginosa is a multidrug resistant opportunistic pathogen and an important cause of nosocomial infections. Quorum-sensing (QS) is a process in which bacterial cell-cell communication can regulates production of many virulence factors including pigment formation and the ability to form biofilm which is essential for establishment of chronic infections. We examined the inhibitory effect of Pistacia atlantica (Anacardiaceae) methanolic leaf extract and its bioactive components on biofilm formation and pigment production by P...
July 13, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28712480/bee-venom-acupuncture-reduces-interleukin-6-increases-interleukin-10-and-induces-locomotor-recovery-in-a-model-of-spinal-cord-compression
#14
Raquel Nascimento de Souza, Fernanda Kohn Silva, Magda Alves de Medeiros
Spinal cord injuries (SCIs) initiate a series of molecular and cellular events in which inflammatory responses can lead to major neurological dysfunctions. The present study aims to investigate whether bee venom (BV) acupuncture applied at acupoints ST36 (Zusanli) and GV3 (Yaoyangquan) could minimize locomotor deficits and the magnitude of neural tissue losses, and change the balance between pro- and anti-inflammatory cytokines after an SCI by compression. Wistar rats were subjected to an SCI model by compression in which a 2-French Fogarty embolectomy catheter was inflated in the extradural space...
June 2017: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/28710977/assessing-the-toxicity-and-risk-of-salt-impacted-winter-road-runoff-to-the-early-life-stages-of-freshwater-mussels-in-the-canadian-province-of-ontario
#15
R S Prosser, Q Rochfort, R McInnis, K Exall, P L Gillis
In temperate urbanized areas where road salting is used for winter road maintenance, the level of chloride in surface waters has been increasing. While a number of studies have shown that the early-life stages of freshwater mussels are particularly sensitive to salt; few studies have examined the toxicity of salt-impacted winter road runoff to the early-life stages of freshwater mussels to confirm that chloride is the driver of toxicity in this mixture. This study examines the acute toxicity of field-collected winter road runoff to the glochidia of wavy-rayed lampmussels (Lampsilis fasciola) (48 h exposure) and newly released juvenile fatmucket mussels (Lampsilis siliquoidea) (<1 week old; 96 h exposure) under different water hardness...
July 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28710015/bactericidal-impact-of-ag-zno-and-mixed-agzno-colloidal-nanoparticles-on-h37rv-mycobacterium-tuberculosis-phagocytized-by-thp-1%C3%A2-cell-lines
#16
Alireza Jafari, Nader Mosavari, Farahnaz Movahedzadeh, Saeedeh Jafari Nodooshan, Roya Safarkar, Rossella Moro, Morteza Kamalzadeh, Ali Majidpour, Mina Boustanshenas, Tahereh Mosavi
The purpose of this research project was to infection of human macrophages (THP-1) cell lines by H37Rv strain of Mycobacterium tuberculosis (H37RvMTB) and find out the ratio/dilution of mixture silver (Ag NPs) and zinc oxide nanoparticles (ZnO NPs) whose ability to eliminate phagocytized bacteria compared to rifampicin. The colloidal Ag NPs and ZnO NPs were synthesized and their characteristics were evaluated. The THP-1 cell lines were infected with different concentration of H37RvMTB. Next, the infected cells were treated with different ratios/dilutions of Ag NPs, ZnO NPs and rifampicin...
July 11, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28709736/supplementation-of-tris-based-extender-with-plasma-egg-yolk-of-six-avian-species-and-camel-skim-milk-for-chilled-preservation-of-dromedary-camel-semen
#17
Farnaz Panahi, Amir Niasari-Naslaji, Fahimehsadat Seyedasgari, Tahereh Ararooti, Kamal Razavi, Ali Akbar Moosavi-Movaheddi
The present study was conducted to investigate a suitable source (Expt. 1) and concentration (Expt. 2) of plasma egg yolk (PEY) and concentration of camel skim milk (CSM; Expt. 3) to supplement tris based extender for chilled storage of dromedary camel semen. In Expt. 1, PEY (20%) of six avian species (domestic chicken, domestic duck, Japanese quail, partridge, pigeon and guinea fowl) was added to semen extender. In Expt. 2, different concentrations (0, 10, 20, 30 and 40%) of selected PEY from Expt.1 were added to semen extender...
June 23, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28709267/aggregation-and-fragmentation-dynamics-in-random-flows-from-tracers-to-inertial-aggregates
#18
Ksenia Guseva, Ulrike Feudel
We investigate the aggregation and fragmentation dynamics of tracers and inertial aggregates in random flows leading to steady-state size distributions. Our objective is to elucidate the impact of changes in aggregation rates due to differences in advection dynamics, especially with respect to the influence of inertial effects. This aggregation process is, at the same time, balanced by fragmentation triggered by local hydrodynamic stress. Our study employs an individual-particle-based model, tracking the position, velocity, and size of each aggregate...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28708967/investigation-of-the-effect-of-milrinone-on-renal-damage-in-an-experimental-non-heart-beating-donor-model
#19
Erdal Uysal, Mehmet Dokur, Serdar Altınay, Eyup İlker Saygılı, Kadir Batcıoglu, Mehmet S Ceylan, Hatem Kazımoglu, Burcin A Uyumlu, Mehmet Karadag
PURPOSE: In our study, it was aimed to investigate the preventive effect of milrinone on renal damage in experimental controlled non-heart-beating donors (NHBDs) model. MATERIALS AND METHODS: Sixteen rats randomly divided into 2 groups, 8 rats in each were used. Group 1 was control, group 2 was milrinone group. Group 1 rats received 1.25 ml 0.09% NaCl intraperitoneally equivalent to the milrinone diluted volume. Group 2 rats were administered intraperitoneally with 0...
July 14, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28708507/effects-of-diluents-and-plasma-on-honey-bee-apis-mellifera-l-drone-frozen-thawed-semen-fertility
#20
REVIEW
Aziz Gül, Nuray Şahinler, Ali G Onal, Brandon K Hopkins, Walter S Sheppard
Cryopreservation is an advanced method used to protect germplasm in liquid nitrogen. Honey bees are of special interest to protect because of their pollination activity and critical role in agriculture. There has been important progress in the cryopreservation of honey bee germplasm in recent years, leading to practical recovery of genetic material for breeding purposes following freezing. However, there remains room for improvement and the goal of the present study was to evaluate the effect of different "extenders" added post-thaw on the fertilization rate of cryopreserved honey bee semen...
June 23, 2017: Theriogenology
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