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https://www.readbyqxmd.com/read/28087612/biofilm-formation-and-antimicrobial-resistance-genes-of-coagulase-negative-staphylococci-isolated-from-cows-with-mastitis-in-argentina
#1
Mariela E Srednik, Yannick D N Tremblay, Josée Labrie, Marie Archambault, Mario Jacques, Fernández Cirelli Alicia, Elida R Gentilini
Mastitis affects the health and welfare of dairy cows worldwide. Coagulase-negative staphylococci (CNS) are known to form biofilms and are increasingly recognized as a cause of persistent bovine intramammary infections. A total of 90 CNS isolated from cows with clinical and subclinical mastitis in Argentina from 2008-2014 were identified by PCR-RFLP using the gap gene. Standard microtiter plate assays were used to assess CNS biofilm formation and Staphylococcus haemolyticus species formed the strongest biofilms...
January 12, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28070537/molecular-analysis-and-expression-of-bap-gene-in-biofilm-forming-multi-drug-resistant-acinetobacter-baumannii
#2
Azizi Omid, Shahcheraghi Fereshteh, Salimizand Himen, Modarresi Farzan, Shakibaie Mohammad Reza, Mansouri Shahla, Ramazanzadeh Rashid, Badmasti Farzad, Nikbin Vajihe
BACKGROUND: Acinetobacter baumannii is commonly resistant to nearly all antibiotics due to presence of antibiotic resistance genes and biofilm formation. In this study we determined the presence of certain antibiotic-resistance genes associated with biofilm production and the influence of low iron concentration on expression of the biofilm-associated protein gene (bap) in development of biofilm among multi-drug-resistant A. baumannii (MDRAB). METHODS: Sixty-five MDRAB isolates from clinical samples were collected...
October 2016: Reports of Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28069516/disruption-of-collagen-apatite-alignment-impairs-bone-mechanical-function-in-osteoblastic-metastasis-induced-by-prostate-cancer
#3
Aiko Sekita, Aira Matsugaki, Takayoshi Nakano
Prostate cancer (PCa) frequently metastasizes to the bone, generally inducing osteoblastic alterations that increase bone brittleness. Although there is growing interest in the management of the physical capability of patients with bone metastasis, the mechanism underlying the impairment of bone mechanical function remains unclear. The alignment of both collagen fibrils and biological apatite (BAp) c-axis, together with bone mineral density, is one of the strongest contributors to bone mechanical function. In this study, we qualitatively and quantitatively assessed the bone microstructure of the mouse femurs with and without PCa cell inoculation...
January 6, 2017: Bone
https://www.readbyqxmd.com/read/28064732/myeloperoxidase-expression-in-human-colonic-mucosa-is-related-to-systemic-oxidative-balance-in-healthy-subjects
#4
Stefano Mancini, Francesco Mariani, Paola Sena, Marta Benincasa, Luca Roncucci
OBJECTIVES: To improve understanding of the preclinical stage of colonic inflammation by exploring the existence of a link between early inflammatory changes in the colonic mucosa and the systemic redox balance. METHODS: Clinical characteristics, a fasting blood draw, and mucosal biopsies from the right, left, and sigmoid-rectum colonic tracts collected from 28 healthy individuals (14/14 males/females) who underwent colonoscopy. Myeloperoxidase (MPO) positive cells infiltrating colonic mucosa specimens were assessed by immunohistochemistry, and patients divided into high or low MPO expressing cells/optical field groups (MPO(high) or MPO(low), respectively)...
January 9, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28063317/temporal-and-spatial-distribution-sources-and-potential-health-risks-of-ambient-polycyclic-aromatic-hydrocarbons-in-the-yangtze-river-delta-yrd-of-eastern-china
#5
Shan Niu, Liang Dong, Lifei Zhang, Chaofei Zhu, Reti Hai, Yeru Huang
In this study, from July 2011 to June 2012, 31 sampling sites were identified in order to investigate the concentrations and sources of polycyclic aromatic hydrocarbons (PAHs), as well as to evaluate their potential health risks in the cities of Suzhou, Wuxi, and Nantong, which are located in the Yangtze River Delta (YRD). The samples were collected by means of passive air sampling (PAS), and the contents of 15 PAHs were detected by gas chromatography-mass spectrometry. The ∑15PAHs concentrations were found to range from 6...
December 26, 2016: Chemosphere
https://www.readbyqxmd.com/read/28063314/construction-of-pah-degrading-mixed-microbial-consortia-by-induced-selection-in-soil
#6
German Zafra, Ángel E Absalón, Miguel Ángel Anducho-Reyes, Francisco J Fernandez, Diana V Cortés-Espinosa
Bioremediation of polycyclic aromatic hydrocarbons (PAHs)-contaminated soils through the biostimulation and bioaugmentation processes can be a strategy for the clean-up of oil spills and environmental accidents. In this work, an induced microbial selection method using PAH-polluted soils was successfully used to construct two microbial consortia exhibiting high degradation levels of low and high molecular weight PAHs. Six fungal and seven bacterial native strains were used to construct mixed consortia with the ability to tolerate high amounts of phenanthrene (Phe), pyrene (Pyr) and benzo(a)pyrene (BaP) and utilize these compounds as a sole carbon source...
December 21, 2016: Chemosphere
https://www.readbyqxmd.com/read/28061931/synergistic-effect-of-hormones-and-biosolids-on-scenedesmus-abundans-for-eliciting-total-biolipids
#7
Chelladurai Chellamboli, Muthiah Perumalsamy
  This study states an integrated approach to grow Scenedesmus abundans in the presence of biostimulants as a robust flourishing organism pertaining to attain the maximum yield of the biodiesel through transesterification. These assessments are especially targeted to achieve the appreciable profit on biodiesel using three biostimulants such as, Indole 3-acetic acid (3 IAA), 6-Benzylaminopurine (6 BAP), and Gibberellic acid (GA) hormones. The proposed schema proved a rise in biomass; as well as lipid content, compared with an alga grown in the absence of hormones...
December 1, 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/28061388/ancestral-benzo-a-pyrene-exposure-affects-bone-integrity-in-f3-adult-fish-oryzias-latipes
#8
Frauke Seemann, Chang-Bum Jeong, Ge Zhang, Miles Teng Wan, Baosheng Guo, Drew Ryan Peterson, Jae-Seong Lee, Doris Wai-Ting Au
Benzo[a]pyrene (BaP) at an environmentally relevant concentration (1μg/L) has previously been shown to affect bone development in a transgenerational manner in F3 medaka (Oryzias latipes) larvae (17dph). Here, we provide novel histomorphometric data demonstrating that the impaired bone formation at an early life stage is not recoverable and can result in a persistent transgenerational impairment of bone metabolism in F3 adult fish. A decrease in bone thickness and the occurrence of microcracks in ancestrally BaP-treated adult male fish (F3) were revealed by MicroCt measurement and histopathological analysis...
December 23, 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/28056959/morphological-densitometric-and-mechanical-properties-of-mandible-in-5-month-old-polish-merino-sheep
#9
Anna Szabelska, Marcin R Tatara, Witold Krupski
BACKGROUND: Among bones building the axial and appendicular skeleton, the mandible is characterized by unique morphological and functional traits. The aim of the study was to evaluate morphological, densitometric and mechanical properties of mandible in 5-month-old Polish Merino sheep. Using quantitative computed tomography, volumetric bone mineral density (vBMD) and calcium hydroxyapatite density of the cortical bone (CbCa-HA), mean vBMD (MvBMD) and total bone volume were determined...
January 5, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28056660/biochemical-markers-reflecting-thyroid-function-in-athyreotic-patients-on-levothyroxine-monotherapy
#10
Mitsuru Ito, Akira Miyauchi, Mako Fujiwara, Waka Yoshioka, Akane Ide, Takumi Kudo, Eijun Nishihara, Minoru Kihara, Yasuhiro Ito, Kaoru Kobayashi, Akihiro Miya, Shuji Fukata, Mitsushige Nishikawa, Hirotoshi Nakamura, Nobuyuki Amino
BACKGROUND: Some investigators reported that among athyreotic patients on levothyroxine (LT4) monotherapy following total thyroidectomy, the patients with normal serum thyroid-stimulating hormone (TSH) levels had mildly low serum free triiodothyronine (FT3) levels, whereas the patients with mildly suppressed serum TSH levels had normal serum FT3 levels and the patients with strongly suppressed serum TSH had elevated serum FT3 levels. The objective of the present study was to clarify which of these three patient groups is closer to their preoperative euthyroid condition...
January 5, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28049045/in-vitro-models-reveal-differences-in-the-developmental-neurotoxicity-of-an-environmental-polycylic-aromatic-hydrocarbon-mixture-compared-to-benzo-a-pyrene-neuronotypic-pc12-cells-and-embryonic-neural-stem-cells
#11
Theodore A Slotkin, Samantha Skavicus, Jennifer Card, Richard T Di Giulio, Frederic J Seidler
In addition to their carcinogenic activity, polycyclic aromatic hydrocarbons (PAHs) are suspected to be developmental neurotoxicants. We evaluated the effects of PAHs with two in vitro models that assess distinct "decision nodes" in neurodifferentiation: neuronotypic PC12 cells, which characterize the transition from cell replication to neurodifferentiation, neurite outgrowth and neurotransmitter specification; and embryonic neural stem cells (NSCs), which evaluate the origination of neurons and glia from precursors...
December 31, 2016: Toxicology
https://www.readbyqxmd.com/read/28049015/immobilization-of-bioactive-compounds-in-cassia-grandis-galactomannan-based-films-influence-on-physicochemical-properties
#12
Priscilla B S Albuquerque, Miguel A Cerqueira, António A Vicente, José A Teixeira, Maria G Carneiro-da-Cunha
Galactomannan extracted from Cassia grandis seeds was used for the production of films containing different concentrations of the bioactive compounds lactoferrin (LF), bioactive peptides (BAPs), and phytosterols. SEM, FTIR, mechanical and thermal properties, colour, moisture content (MC), solubility, water vapour permeability (WVP), and contact angle (CA) were performed evaluating the effect of increasing concentrations of bioactive compounds on the films' physicochemical properties. The immobilization of bioactive compounds leads to films with roughness on their surface, as observed by SEM...
December 31, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28045571/gait-rehabilitation-for-a-patient-with-an-osseointegrated-prosthesis-following-transfemoral-amputation
#13
Ruud A Leijendekkers, Gerben van Hinte, Maria Wg Nijhuis-van der Sanden, J Bart Staal
BACKGROUND: In patients with a transfemoral amputation socket-related problems are associated with reduced prosthetic use, activity, and quality of life. Furthermore, gait asymmetries are present that may explain secondary complaints. Bone-anchored prostheses (BAPs) may help these patients. Two types of BAP are available, screw and press-fit implants. Rehabilitation following surgery for a press-fit BAP is poorly described. PURPOSE: To describe a rehabilitation program designed to minimize compensation strategies and increase activity using a case-report of an active, 70-year-old man with a traumatic transfemoral amputation who had used a socket prosthesis for 52 years and received a press-fit BAP [Endo-Exo Femoral Prosthesis - EEFP]...
January 3, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28043741/exposure-to-benzo-a-pyrene-impairs-decidualization-and-decidual-angiogenesis-in-mice-during-early-pregnancy
#14
Xueyan Li, Cha Shen, Xueqing Liu, Junlin He, Yubin Ding, Rufei Gao, Xinyi Mu, Yanqing Geng, Yingxiong Wang, Xuemei Chen
Benzo[a]pyrene (BaP) is a ubiquitous environmental persistent organic pollutant and a well-known endocrine disruptor. BaP exposure could alter the steroid balance in females. Endometrium decidualization and decidual angiogenesis are critical events for embryo implantation and pregnancy maintenance during early pregnancy and are modulated by steroids. However, the effect of BaP on decidualization is not clear. This study aimed to explore the effects of BaP on decidualization and decidual angiogenesis in pregnant mice...
December 30, 2016: Environmental Pollution
https://www.readbyqxmd.com/read/28033512/the-beliefs-about-paranoia-scale-confirmatory-factor-analysis-and-tests-of-a-metacognitive-model-of-paranoia-in-a-clinical-sample
#15
Elizabeth K Murphy, Sarah Tully, Melissa Pyle, Andrew I Gumley, David Kingdon, Matthias Schwannauer, Douglas Turkington, Anthony P Morrison
This study aimed to confirm the factor structure of the Beliefs about Paranoia Scale (BaPS), a self-report measure to assess metacognitive beliefs about paranoia, and to test hypotheses of a metacognitive model. We hypothesised that positive and negative beliefs about paranoia would be associated with severity of suspiciousness, and that the co-occurrence of positive and negative beliefs would be associated with increased suspiciousness. A total of 335 patients meeting criteria for a schizophrenia spectrum disorder completed the BaPS, the Positive and Negative Syndromes Scale (PANSS), and the Psychotic Symptom Rating Scales (PSYRATS)...
November 12, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/28007926/circadian-regulation-of-benzo-a-pyrene-metabolism-and-dna-adduct-formation-in-breast-cells-and-the-mouse-mammary-gland
#16
Emily E Schmitt, Rola Barhoumi, Richard P Metz, Weston W Porter
The circadian clock plays a role in many biological processes, yet very little is known about its role in metabolism of drugs and carcinogens. The purpose of this study was to define the impact of circadian rhythms on benzo-a-pyrene (BaP) metabolism in the mouse mammary gland and develop a circadian in vitro model for investigating changes in BaP metabolism resulting from cross-talk between the molecular clock and aryl hydrocarbon receptor. Female 129sv mice (12 weeks old) received a single gavage dose of 50 mg/kg BaP at either noon or midnight, and mammary tissues were isolated 4 or 24 hours later...
December 22, 2016: Molecular Pharmacology
https://www.readbyqxmd.com/read/28004025/callus-cell-shoot-and-stem-proliferation-data-from-pineapple-crown-and-banana-inflorescence-in-vitro-biochemical-and-antioxidant-properties
#17
Abm Sharif Hossain, Musamma M Uddin
The data article contains the experimental data and images on the callus cell, shoot and stem proliferation from pineapple crown slice and banana inflorescence in vitro. Investigated data are related to the research article "Effects of benzylaminopurine and naphthalene acetic acid on proliferation and shoot growth of pineapple (Ananas comosus L. Merr) in vitro" Alsaif et al. (2011) [1] and "Plantlet Production through Development of Competent Multiple Meristem Cultures from Male Inflorescence of Banana, Musa acuminta cv...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/28000843/wheat-bran-autolytic-peptides-containing-a-branched-chain-amino-acid-attenuate-non-alcoholic-steatohepatitis-via-the-suppression-of-oxidative-stress-and-the-upregulation-of-ampk-acc-in-high-fat-diet-fed-mice
#18
Takumi Kawaguchi, Takato Ueno, Yoichi Nogata, Masako Hayakawa, Hironori Koga, Takuji Torimura
Whole-wheat intake is known to reduce the risk of metabolic syndrome. However, the active component remains unclear. Recently, we identified bioactive peptides [leucine-arginine-proline (LRP) and leucine-glutamine‑proline (LQP)] from wheat bran autolytic hydrolysate. The present study aimed to investigate the effects of LRP and LQP on non-alcoholic steatohepatitis (NASH) in a mouse model. We also evaluated the effects of these peptides on oxidative stress and on the AMP-activated protein kinase (AMPK) signaling pathway, two major pathogenic factors of NASH...
December 14, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27996159/persistent-phosphorylation-at-specific-h3-serine-residues-involved-in-chemical-carcinogen-induced-cell-transformation
#19
Xiaonian Zhu, Daochuan Li, Zhengbao Zhang, Wei Zhu, Wenxue Li, Jian Zhao, Xiumei Xing, Zhini He, Shan Wang, Fangping Wang, Lu Ma, Qing Bai, Xiaowen Zeng, Jie Li, Chen Gao, Yongmei Xiao, Qing Wang, Liping Chen, Wen Chen
Identification of aberrant histone H3 phosphorylation during chemical carcinogenesis will lead to a better understanding of the substantial roles of histone modifications in cancer development. To explore whether aberrant H3 phosphorylation contributes to chemical carcinogenesis, we examined the dynamic changes of H3 phosphorylation at various residues in chemical carcinogen-induced transformed human cells and human cancers. We found that histone H3 phosphorylation at Ser10 (p-H3S10) and Ser28 (p-H3S28) were up-regulated by 1...
December 20, 2016: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/27989794/synchronous-disruption-of-anisotropic-arrangement-of-the-osteocyte-network-and-collagen-apatite-in-melanoma-bone-metastasis
#20
Aiko Sekita, Aira Matsugaki, Takuya Ishimoto, Takayoshi Nakano
Cancer metastasis to bones increases the risk of fragility fracture by altering bone metabolism and disrupting bone structure. Osteocytes, which organize a dense network that is closely linked with the circumambient matrix, play a key role in regulation of bone microstructure and material properties. The aim of this study was to elucidate the influence of cancer metastasis on the organization of the osteocyte network and collagen/biological apatite (BAp) microstructure in the context of osteocyte/matrix coupling...
December 16, 2016: Journal of Structural Biology
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