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https://www.readbyqxmd.com/read/28719346/virulence-genes-in-biofilm-producer-enterococcus-faecalis-isolates-from-root-canal-infections
#1
M Akbari Aghdam, M H Soroush Barhaghi, M Aghazadeh, F Jafari, M Beomide Hagh, M Haghdoost, M Y Memar, M Ahangarzadeh Rezaee, H Samadi Kafil
Enterococcus faecalis is occurring in opportunistic infections involving the oral cavity. This study aimed to evaluate the presence of E. faecalis virulence genes in dental root canal isolates recovered from advanced chronic periodontitis patients. One hundred E. faecalis isolated from dental root canal during July 2015 to Oct 2016. After analysis of biofilm formation by the semi-quantitative determination in 96-well flat bottom polystyrene plates, the presence of asa, esp, efaA, ace, ebpR, gel and hyl gene were studied by PCR...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28719189/determination-of-double-bond-positions-in-polyunsaturated-fatty-acids-using-the-photochemical-patern%C3%A3-b%C3%A3-chi-reaction-with-acetone-and-tandem-mass-spectrometry
#2
Robert C Murphy, Toshiaki Okuno, Christopher A Johnson, Robert M Barkley
The position of double bonds along the carbon chain of methylene interrupted polyunsaturated fatty acids are unique identifiers of specific fatty acids derived from biochemical reactions that occur in cells. It is possible to obtain direct structural information as to these double bond positions using tandem mass spectrometry after collisional activation of the carboxylate anions of an acetone adduct at each of the double bond positions formed by the photochemical Paternò-Büchi reaction with acetone. This reaction can be carried out by exposing a small portion of an inline fused silica capillary to UV photons from a mercury vapor lamp as the sample is infused into the electrospray ion source of a mass spectrometer...
July 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28717894/determination-of-ketones-and-ethyl-acetate-a-preliminary-study-for-the-discrimination-of-patients-with-lung-cancer
#3
Patricia Martín Santos, Miguel Del Nogal Sánchez, Ángel Pedro Crisolino Pozas, José Luis Pérez Pavón, Bernardo Moreno Cordero
In this work, ten possible volatile biomarkers of lung cancer (acetone, 2-butanone, ethyl acetate, 2-pentanone, 4-methyl-2-pentanone, 2-hexanone, 3-heptanone, 2-heptanone, 3-octanone, and 2-nonanone) have been analyzed to evaluate their different concentration levels in urine samples from lung cancer patients (n = 12) and healthy controls (n = 12). The volatile compounds were generated with a headspace autosampler and analyzed with a gas chromatograph equipped with a programmed temperature vaporizer and mass spectrometry detector (HS-PTV-GC-MS)...
July 17, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28717853/radiation-related-heart-disease-after-breast-cancer-radiation-therapy-in-korean-women
#4
Jee Suk Chang, Byung Kyun Ko, Jeoung Won Bae, Jong-Han Yu, Min Ho Park, Yongsik Jung, Ye Won Jeon, Kyung Hwan Kim, Jaeyong Shin, Chang-Ok Suh, Yong Bae Kim
PURPOSE: To study the late cardiac toxicity of breast radiation therapy (RT) in Asian women. METHODS: Female breast cancer patients in Korea who underwent breast conservation surgery followed by RT from 1990-2012 were identified from two large registries at institution and population levels. Cumulative incidences of acute coronary events (ACE) or cardiac mortality were estimated in relation to the laterality of breast cancer using a competing risks analysis. RESULTS: In an analysis of 2577 women from a single institution, 3...
July 17, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28717364/serum-free-thyroxine-levels-were-associated-with-pulmonary-hypertension-and-pulmonary-artery-systolic-pressure-in-euthyroid-patients-with-coronary-artery-disease
#5
Bingjie Wu, Jingjing Jiang, Minghui Gui, Lin Liu, Qiqige Aleteng, Shanshan Wang, Xiaojing Liu, Yan Ling, Xin Gao
The aim of this study was to evaluate the association between thyroid hormone levels, pulmonary hypertension (PH), and pulmonary artery systolic pressure (PASP) in euthyroid patients with coronary artery disease (CAD). A cross-sectional study was conducted in individuals who underwent coronary angiography and were diagnosed as CAD from March 2013 to November 2013. 811 subjects (185 women and 626 men) were included in this study. PASP was measured by transthoracic Doppler echocardiography. 86 patients were diagnosed as PH and had significantly higher free thyroxine (FT4) levels than those without PH...
2017: International Journal of Endocrinology
https://www.readbyqxmd.com/read/28717218/nmr-and-dft-investigations-of-structure-of-colchicine-in-various-solvents-including-density-functional-theory-calculations
#6
Gregory K Pierens, T K Venkatachalam, David C Reutens
A detailed NMR investigation of the chemical shifts of hydrogen and carbon atoms associated with the structure of the naturally occurring alkaloid colchicine was conducted using high field NMR. Initially, the experimental chemical shifts for colchicine in chloroform and DMSO were compared to the values calculated using density functional theory (DFT). There were significant deviations observed for the chloroform solvent, but these were only slight in the DMSO solution. Dilution of the chloroform solution changed the experimental chemical shifts and improved agreement with the DFT calculations, suggesting self-aggregation at higher concentrations...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717213/ferroelectric-paraelectric-transition-in-a-membrane-with-quenched-induced-%C3%AE-phase-of-pvdf
#7
O García-Zaldívar, T Escamilla-Díaz, M Ramírez-Cardona, M A Hernández-Landaverde, R Ramírez-Bon, J M Yañez-Limón, F Calderón-Piñar
The stabilization of δ-phase of poly(vinylidene fluoride) PVDF in a 14 µm-thickness ferroelectric membrane is achieved by a simple route based on the use of a dimethylformamide (DMF)/acetone solvent, in which the application of external electric field is not required. X-ray diffraction and calorimetric experiments on heating reveal that, at 154 °C, the original mixture between ferroelectric δ-phase and paraelectric α-phase transits to a system with only this latter phase in the crystalline fraction. A gradual and slight increment of amorphous fraction up to the melting at 161 °C is also observed...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28715794/an-introduction-to-the-emergency-department-adult-clinical-escalation-protocol-ed-ace
#8
Eoin Coughlan, Una Geary, Abel Wakai, Ronan O'Sullivan, John Browne, Eilish McAuliffe, Marie Ward, Fiona McDaid, Conor Deasy
PURPOSE OF THE STUDY: This study demonstrates how a participatory action research approach was used to address the challenge of the early and effective detection of the deteriorating patient in the ED setting. The approach enabled a systematic approach to patient monitoring and escalation of care to be developed to address the wide-ranging spectrum of undifferentiated presentations and the phases of ED care from triage to patient admission. This paper presents a longitudinal patient monitoring system, which aims to provide monitoring and escalation of care, where necessary, of adult patients from triage to admission to hospital in a manner that is feasible in the unique ED environment...
November 14, 2016: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28715747/alumina-activated-carbon-nano-composites-synthesis-and-application-in-sulphide-ion-removal-from-water
#9
Ushadevi Balasubramani, Ranjithkumar Venkatesh, Sangeetha Subramaniam, Gayathri Gopalakrishnan, Vairam Sundararajan
An investigation of adsorption of sulphide ion (S(2-)) in water onto carbon/alumina nano-composites synthesized from aluminium carboxylate precursors, in presence of HCl, NaOH, NaCl and surfactant is reported in this paper. A controlled oxygen free pyrolytic technique has been adopted for the synthesis of nano-composites, using acetate, acetyl acetonate, lactate and distearate of aluminium and activated carbon. XRD, SEM and TEM studies of the composites show that they contain clusters made of nano carbon particles of size 50-130nm into which nano alumina particles of size around 10nm are dispersed...
July 6, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28715183/dimethyl-sulfoxide-complexes-detected-at-ambient-conditions
#10
Anne Schou Hansen, Henrik Grum Kjaergaard
Dimethyl sulfoxide (DMSO) is an important intermediate in the atmospheric oxi- dation of dimethyl sulfide (DMS). DMS, emitted from the ocean, is the main natural sulfur source and its oxidation products are essential in the formation of sulfate aerosols. The high atmospheric concentration of water makes hydrogen bonding with DMS and its oxidation products likely. Through hydrogen bonding, water can potentially cat- alyze and affect the steps of the oxidation. We investigate binary hydrogen bound complexes involving DMSO...
July 17, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28714227/transepithelial-transport-of-milk-derived-angiotensin-i-converting-enzyme-inhibitory-peptide-with-the-rlsfnp-sequence
#11
Yuxing Guo, Junai Gan, Qian Zhu, Xiaoqun Zeng, Yangying Sun, Zhen Wu, Daodong Pan
BACKGROUND: To exert an antihypertensive effect after oral administration, Angiotensin I-converting enzyme (ACE) inhibitory peptides must remain active after intestinal transport. The purpose of this article is to elucidate the transport permeability and route of ACE inhibitory peptide Arg-Leu-Ser-Phe-Asn-Pro (RLSFNP) across the intestinal epithelium using a Caco-2 cell monolayers. RESULTS: Intact RLSFNP and RLSFNP breakdown fragments F, FNP, SFNP and RLSF were found in RLSFNP transport solution across Caco-2 cell monolayers using ultra-performance liquid chromatography tandem mass (UPLC-MS)...
July 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28713585/associations-of-centrally-acting-ace-inhibitors-with-cognitive-decline-and-survival-in-alzheimer-s-disease
#12
Karim Fazal, Gayan Perera, Mizanur Khondoker, Robert Howard, Robert Stewart
BACKGROUND: Cognitive improvement has been reported in patients receiving centrally acting angiotensin-converting enzyme inhibitors (C-ACEIs). AIMS: To compare cognitive decline and survival after diagnosis of Alzheimer's disease between people receiving C-ACEIs, non-centrally acting angiotensin-converting enzyme inhibitors (NC-ACEIs), and neither. METHOD: Routine Mini-Mental State Examination (MMSE) scores were extracted in 5260 patients receiving acetylcholinesterase inhibitors and analysed against C-/NC-ACEI exposure at the time of Alzheimer's disease diagnosis...
July 2017: BJPsych Open
https://www.readbyqxmd.com/read/28713087/clinical-factors-related-to-post-stroke-fatigue-within-the-first-3-month-after-acute-cerebrovascular-events
#13
Iryna I Delva, Mykhaylo Y Delva, Volodymyr A Poltorapavlov
INTRODUCTION: Post-stroke fatigue (PSF) is a common stroke complication with long-term negative consequences. AIM: Assess the rates of certain PSF domains within first 3 months after different acute cerebrovascular events (ACE) and identify clinical factors associated with each PSF domain. MATERIAL AND METHODS: There were examined 285 patients (195 with ischemic strokes, 39 with hemorrhagic strokes and 51 with transient ischemic attacks (TIA)) consequently at hospital stay, in 1 month and in 3 months after ACE...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28712816/enhanced-startle-reflexivity-during-presentation-of-visual-nurture-cues-in-young-adults-who-experienced-parental-divorce-in-early-childhood
#14
Xenia Hengesch, Mauro F Larra, Johannes B Finke, Terry D Blumenthal, Hartmut Schächinger
Adverse childhood experiences (ACE) may influence stress and affective processing in adulthood. Animal and human studies show enhanced startle reflexivity in adult participants with ACE. This study examined the impact of one of the most common ACE, parental divorce, on startle reflexivity in adulthood. Affective modulation of acoustically-elicited startle eye blink was assessed in a group of 23 young adults with self-reported history of parental divorce, compared to an age- and sex-matched control group (n=18)...
July 13, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28712707/discovery-of-a-potent-angiotensin-converting-enzyme-inhibitor-via-virtual-screening
#15
Zhipeng Ke, Zhenzhen Su, Xinzhuang Zhang, Zeyu Cao, Yue Ding, Liang Cao, Gang Ding, Zhenzhong Wang, Haichun Liu, Wei Xiao
Prompted by the prominent role of angiotensin converting enzyme (ACE) in hypertension, heart failures, myocardial infarction and diabetic nephropathy, we have attempted to discover novel ACE inhibitors through ligand-based virtual screening. Molecular docking method and rigorously validated model was utilized to search a natural compounds database. Finally, 36 compounds were randomly selected and subjected to in vitro ACE kinase inhibitory assay using fluorescence assays method. The results showed that three compounds (Licochalcone A, Echinatin and EGCG) have strong potential to be developed as a new class of ACE inhibitors...
July 5, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28712539/chronic-treatment-with-angiotensin-converting-enzyme-inhibitor-increases-cardiac-fibrosis-in-young-rats-submitted-to-early-ovarian-failure
#16
Sabrina Graziani Veloso Dutra, Ana Carolina Sanches Felix, Ada Clarice Gastaldi, Tábata De Paula Facioli, Suenimeire Vieira, Hugo Celso Dutra De Souza
BACKGROUND: We investigated whether the treatment with enalapril maleate, combined with aerobic physical training, promotes positive effects on the autonomic balance, the morphology and the cardiac function in female rats submitted to early ovarian failure. METHODS: Thirty-five female Wistar rats, ovariectomized at 10weeks of age, were assigned into Ovariectomized rats (OVX) and Ovariectomized rats treated with enalapril maleate (OVX-EM, 10mg(-1)·kg(-1)·d(-1)) Each group was subdivided into sedentary and trained (aerobic swimming training for 10weeks)...
July 10, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28712479/antiplatelet-aggregation-activity-of-walnut-hull-extract-via-suppression-of-reactive-oxygen-species-generation-and-caspase-activation
#17
Azadeh Meshkini, Masoumeh Tahmasbi
Walnut hull (wal hull) is an agricultural by-product that is widely used in traditional medicine for alleviating pain and treating skin diseases, however, recently it has gained much attention in modern pharmacology due to its antioxidant properties. The current study was aimed to determine the total phenolic, flavonoid, and tannin content of Persian wal hull extract and evaluate its biological effects on platelet function. Experimental data showed that acetone extract of wal hulls has a high content of polyphenolic compounds and antioxidant properties...
June 2017: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/28712073/association-between-ace-and-agt-polymorphism-and-cardiovascular-risk-in-acromegalic-patients
#18
Tomris Erbas, Nese Cinar, Selcuk Dagdelen, Arzu Gedik, Hikmet Yorgun, Ugur Canpolat, Giray Kabakci, Mehmet Alikasifoglu
PURPOSE: Whether the renin-angiotensin-aldosterone system plays a role or not in the development of cardiovascular morbidity in acromegaly patients is unknown. The aim of the study was to investigate the association between ACE (I/D) and AGT (M235T) gene polymorphisms and cardiovascular and metabolic disorders in the acromegaly. METHODS: The study included one hundred and seventeen acromegalic patients (62 F/55 M, age: 50.2 ± 12.3 years) and 106 healthy controls (92 F/14 M, age: 41...
July 15, 2017: Pituitary
https://www.readbyqxmd.com/read/28711573/distribution-and-impact-of-comorbidities-on-survival-and-leukemic-transformation-in-myeloproliferative-neoplasm-associated-myelofibrosis-a-retrospective-cohort-study
#19
Justyna Bartoszko, Tony Panzarella, Caroline Jane McNamara, Anthea Lau, Aaron D Schimmer, Andre C Schuh, Hassan Sibai, Dawn Maze, Karen W L Yee, Rebecca Devlin, Vikas Gupta
BACKGROUND: We sought to describe the distribution and impact of comorbidities on outcomes in patients with myelofibrosis, a disease characterized by aberrant bone marrow function with eventual fibrosis. Comorbidities were scored using the Adult Comorbidity Evaluation-27 (ACE-27) and the Hematopoietic Cell Transplant Comorbidity Index (HCT-CI), in which a score ≥ 3 indicates severe comorbidities. PATIENTS AND METHODS: We conducted a retrospective study of 306 patients with a confirmed diagnosis of myelofibrosis...
June 29, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28711446/clinical-effectiveness-of-hydralazine-isosorbide-dinitrate-in-african-american-patients-with-heart%C3%A2-failure
#20
Boback Ziaeian, Gregg C Fonarow, Paul A Heidenreich
OBJECTIVES: This study sought to evaluate the effectiveness of hydralazine-isosorbide dinitrate (H-ISDN) in African Americans with heart failure (HF) with reduced ejection fraction (HFrEF). BACKGROUND: Among African-American patients with HFrEF, H-ISDN was found to improve quality of life and lower HF-related hospitalization and mortality rates in the A-HEFT (African-American Heart Failure Trial). Few studies have evaluated the effectiveness of this therapy in clinical practice...
July 6, 2017: JACC. Heart Failure
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