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https://www.readbyqxmd.com/read/28922514/the-complexity-of-oral-physiology-and-its-impact-on-salivary-diagnostics
#1
Eva J Helmerhorst, Colin Dawes, Frank G Oppenheim
OBJECTIVES: Saliva contains biomarkers for systemic as well as oral diseases. This study was undertaken to assess the variability in the sources of such biomarkers (plasma, cells), and attempted to identify saliva deterioration markers in order to improve saliva diagnostic outcomes. MATERIALS AND METHODS: Inter- and intra-subject variation in salivary gingival crevicular fluid levels were determined by measuring salivary albumin and transferrin levels. The purity of collected glandular secretions was determined by bacterial culture, and the variability in epithelial cell numbers by cell counting and optical density measurement...
September 18, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28921918/proteomic-response-of-human-umbilical-vein-endothelial-cells-to-histamine-stimulation
#2
Pelin Esma Emirbayer, Ankit Sinha, Vladimir Ignatchenko, Stefanie Hoyer, Jan Dörrie, Niels Schaft, Monika Pischetsrieder, Thomas Kislinger
The histamine receptors (HRs) represent a subclass of G protein-coupled receptors (GPCRs) and comprise four subtypes. Due to their numerous physiological and pathological effects, HRs are popular drug targets for the treatment of allergic reactions or the regulation of gastric acid secretion. Hence, an understanding of the functional selectivity of HR ligands has gained importance. These ligands can bind to specific GPCRs and selectively activate defined pathways. Supporting the activation of a therapeutically necessary pathway without the activation of other signaling cascades can result in drugs with more specific activity and fewer side effects...
September 18, 2017: Proteomics
https://www.readbyqxmd.com/read/28921641/pharmacokinetic-guided-dosing-of-new-oral-cancer-agents
#3
Catherine J Lucas, Jennifer H Martin
Generally, licensed drug-dosing recommendations for chemotherapy are based on results from clinical trials in which subjects are usually of relatively normal body size, middle-aged, and are relatively racially homogeneous, with minimal comorbidity and specific tumor characteristics. Very few nontrial patients meet these characteristics, resulting in clinical practice having to extrapolate dosing recommendations to the specific patient. There is insufficient research on the impact of obesity-associated physiological changes prevalent in patients with common cancers on standard pharmacokinetic and pharmacodynamic parameters...
October 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28920806/accuracy-of-noninvasive-anesthetic-monitoring-in-the-anesthetized-giraffe-giraffa-camelopardalis
#4
Mads F Bertelsen, Carsten Grøndahl, George F Stegmann, Cathrine Sauer, Niels H Secher, J Michael Hasenkam, Mads Damkjær, Christian Aalkjær, Tobias Wang
This study evaluated the accuracy of pulse oximetry, capnography, and oscillometric blood pressure during general anesthesia in giraffes (Giraffa camelopardalis). Thirty-two giraffes anesthetized for physiologic experiments were instrumented with a pulse oximeter transmittance probe positioned on the tongue and a capnograph sampling line placed at the oral end of the endotracheal tube. A human size 10 blood pressure cuff was placed around the base of the tail, and an indwelling arterial catheter in the auricular artery continuously measured blood pressure...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28920697/n%C3%AE%C2%B5-and-o-acetylation-in-mycobacterium-tuberculosis-lineage-7-and-lineage-4-strains-proteins-involved-in-bioenergetics-virulence-and-antimicrobial-resistance-are-acetylated
#5
Alemayehu Godana Birhanu, Solomon Abebe Yimer, Carol Holm-Hansen, Gunnstein Norheim, Abraham Aseffa, Markos Abebe, Tone Tønjum
Increasing evidence demonstrates that lysine acetylation is involved in Mycobacterium tuberculosis (Mtb) virulence and pathogenesis. However, previous investigations in Mtb have only monitored acetylation at lysine residues using selected reference strains. We analyzed the global Nε- and O-acetylation of 3 Mtb isolates; 2 lineage 7 clinical isolates and the lineage 4 H37Rv reference strain. Quantitative acetylome analysis resulted in identification of 2490 class-I acetylation sites, among them 2349 O-acetylation and 141 Nε-acetylation sites, derived from 953 unique proteins...
September 18, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28919851/deficient-sleep-in-mouse-models-of-fragile-x-syndrome
#6
R Michelle Saré, Lee Harkless, Merlin Levine, Anita Torossian, Carrie A Sheeler, Carolyn B Smith
In patients with fragile X syndrome (FXS), sleep problems are commonly observed but are not well characterized. In animal models of FXS (dfmr1 and Fmr1 knockout (KO)/Fxr2 heterozygote) circadian rhythmicity is affected, but sleep per se has not been examined. We used a home-cage monitoring system to assess total sleep time in both light and dark phases in Fmr1 KO mice at different developmental stages. Fmr1 KOs at P21 do not differ from controls, but genotype × phase interactions in both adult (P70 and P180) groups are statistically significant indicating that sleep in Fmr1 KOs is reduced selectively in the light phase compared to controls...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28919614/use-of-acute-physiology-and-chronic-health-evaluation-apache-ii-and-red-cell-distribution-width-rdw-for-assessment-of-mortality-of-patients-with-sepsis-in-icu
#7
A Q Huda, M R Karim, M A Mahmud, M S Islam, M F Haque, M R Islam, M A Hossain
Critically ill patients of Intensive Care Unit (ICU) need highest level of monitoring, intense nursing care and integrated management which are very expensive and consume significant part of hospital resources. Prediction of outcome from disease has become an essential component of health science. So, various scoring systems have been developed to predict outcome of critically ill patients in ICU. There is no perfect model of severity score to predict ICU mortality. Search for new system is still remaining as continuous efforts to find the best model to get accurate information about the prognosis and outcome of critically ill patients...
July 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28918702/anterior-thalamic-nuclei-deep-brain-stimulation-reduces-disruption-of-the-blood-brain-barrier-albumin-extravasation-inflammation-and-apoptosis-in-kainic-acid-induced-epileptic-rats
#8
Ying-Chuan Chen, Guan-Yu Zhu, Xiu Wang, Lin Shi, Ting-Ting Du, De-Feng Liu, Yu-Ye Liu, Yin Jiang, Xin Zhang, Jian-Guo Zhang
Objective The therapeutic efficacy of anterior thalamic nuclei deep brain stimulation (ATN-DBS) against seizures has been largely accepted; however, the effects of ATN-DBS on disruption of the blood-brain barrier (BBB), albumin extravasation, inflammation and apoptosis still remain unclear. Methods Rats were distributed into four treatment groups: physiological saline (PS, N = 12), kainic acid (KA, N = 12), KA-sham-DBS (N = 12) and KA-DBS (N = 12). Seizures were monitored using video-electroencephalogram (EEG)...
September 18, 2017: Neurological Research
https://www.readbyqxmd.com/read/28918336/total-and-cytosolic-concentrations-of-twenty-metals-metalloids-in-the-liver-of-brown-trout-salmo-trutta-linnaeus-1758-from-the-karstic-croatian-river-krka
#9
Zrinka Dragun, Vlatka Filipović Marijić, Nesrete Krasnići, Dušica Ivanković, Damir Valić, Jakov Žunić, Damir Kapetanović, Irena Vardić Smrzlić, Zuzana Redžović, Ivana Grgić, Marijana Erk
Total and cytosolic concentrations of twenty metals/metalloids in the liver of brown trout Salmo trutta (Linnaeus, 1758) were studied in the period from April 2015 to May 2016 at two sampling sites on Croatian river Krka, to establish if river water contamination with metals/metalloids downstream of Knin town has influenced metal bioaccumulation in S. trutta liver. Differences were observed between two sites, with higher concentrations of several elements (Ag, As, Ca, Co, Na, Se, Sr, V) found downstream of Knin town, whereas few others (Cd, Cs, Mo, Tl) were, unexpectedly, increased at the Krka River spring...
September 14, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28917710/molecular-identification-of-vermamoeba-vermiformis-from-freshwater-fish-in-lake-taal-philippines
#10
Giovanni D Milanez, Frederick R Masangkay, Rey C Thomas, Ma Olive Grace O Ordona, Gabriel Q Bernales, Vyanna Camille M Corpuz, Hannah Selina V Fortes, Charezze Margarette S Garcia, Larra Camille Nicolas, Veeranoot Nissapatorn
Free Living Amoebae (FLA) are considered ubiquitous. FLAs may infect various biological organisms which act as reservoir hosts. Infected freshwater fishes can pose a public health concern due to possible human consumption. This study aims to identify possible pathogenic FLAs present in freshwater fishes. Seventy five (75) Oreochromis niloticus were studied for the presence of FLAs. Fish organs were suspended in physiologic saline pelleted and cultured in non-nutrient agar (NNA) lawned with Escherichia coli and were incubated in 33 °C for 14 days...
September 13, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28916602/validation-study-of-image-based-fractional-flow-reserve-during-coronary-angiography
#11
Mariano Pellicano, Ifat Lavi, Bernard De Bruyne, Hana Vaknin-Assa, Abid Assali, Orna Valtzer, Yonit Lotringer, Giora Weisz, Yaron Almagor, Panagiotis Xaplanteris, Ajay J Kirtane, Pablo Codner, Martin B Leon, Ran Kornowski
BACKGROUND: Fractional flow reserve (FFR), an index of the hemodynamic severity of coronary stenoses, is derived from invasive measurements and requires a pressure-monitoring guidewire and hyperemic stimulus. Angiography-derived FFR measurements (FFRangio) may have several advantages. The aim of this study is to assess the diagnostic performance and interobserver reproducibility of FFRangio in patients with stable coronary artery disease. METHODS AND RESULTS: FFRangio is a computational method based on rapid flow analysis for the assessment of FFR...
September 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28916044/antibiotic-affinity-strategy-for-bioluminescent-detection-of-viable-gram-positive-bacteria-using-daptomycin-as-recognition-agent
#12
Mengyao Wang, Yue Wu, Yong He, Xiaoxiao Su, Hui Ouyang, Zhifeng Fu
A bioluminescent method was proposed for rapid detection of viable Gram-positive bacteria based on a novel antibiotic-affinity strategy on a magnetic beads (MBs) platform. Daptomycin, a highly efficient lipopeptide antibiotic for Gram-positive bacteria, was used as a recognition agent to functionalize MBs. The daptomycin-functionalized MBs showed high capture and concentration efficiency for Gram-positive bacteria due to the strong binding between daptomycin and bacterial cell membrane in the presence of Ca(2+) ion...
September 22, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28915944/a-novel-substrate-inspired-fluorescent-probe-to-monitor-native-albumin-in-human-plasma-and-living-cells
#13
Guang-Bo Ge, Lei Feng, Qiang Jin, Yi-Ru Wang, Zhao-Ming Liu, Xin-Yue Zhu, Ping Wang, Jie Hou, Jing-Nan Cui, Ling Yang
Human albumin (HA) displays crucial roles in maintaining health and fighting diseases. Accurate determination of native HA in plasma or non-plasma samples are of immense significance in both basic research and clinical practice. Herein, a novel ratiometric two-photon fluorescent probe (N-butyl-4-(4-phenyl-benzoyloxy) 1,8-naphthalimide, BPBN) has been designed and developed for highly selective and sensitive sensing the enzymatic activities of HA, on the basis of its unique pseudo-esterase feature. BPBN exhibits excellent selectivity, high sensitivity and good reactivity under physiological conditions...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28915410/aiegens-for-biological-process-monitoring-and-disease-theranostics
#14
REVIEW
Xinggui Gu, Ryan T K Kwok, Jacky W Y Lam, Ben Zhong Tang
Biological processes are of great significance for the normal physiological functions of living organisms and closely related to the health. Monitoring of biological processes and diagnosis of diseases based on fluorescent techniques would provide comprehensive insight into mechanism of life and pathogenesis of diseases, precisely guiding therapeutic effect in theranostics. It largely relied on fluorophores with the properties of excellent photostability, large Stokes shift, high signal-to-noise ratio and free of aggregation-caused quenching (ACQ) effect...
September 4, 2017: Biomaterials
https://www.readbyqxmd.com/read/28914815/a-systematic-review-family-support-integrated-with-diabetes-self-management-among-uncontrolled-type-ii-diabetes-mellitus-patients
#15
REVIEW
Rian Adi Pamungkas, Kanittha Chamroonsawasdi, Paranee Vatanasomboon
The rate of type-2 diabetes mellitus (T2D) is dramatically increasing worldwide. Continuing diabetes mellitus (DM) care needs effective self-management education and support for both patients and family members. This study aimed to review and describe the impacts of diabetes mellitus self-management education (DSME) that involve family members on patient outcomes related to patient health behaviors and perceived self-efficacy on self-management such as medication adherence, blood glucose monitoring, diet and exercise changes, health outcomes including psychological well-being and self-efficacy, and physiological markers including body mass index, level of blood pressure, cholesterol level and glycemic control...
September 15, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/28913590/challenges-of-anticoagulation-therapy-in-pregnancy
#16
REVIEW
Annemarie E Fogerty
Thrombotic complications in pregnancy represent a major cause of morbidity and mortality. Pregnancy is a primary hypercoagulable state due to enhanced production of clotting factors, a decrease in protein S activity, and inhibition of fibrinolysis. These physiologic changes will yield a collective rate of venous thromboembolism (VTE) of about 1-2 in 1000 pregnancies for the general obstetric population, which represents a five- to tenfold increased risk in pregnancy compared to age-matched non-pregnant peers...
September 14, 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28913346/live-fast-die-fast-principle-in-a-single-cell-of-fission-yeast
#17
COMMENT
Hidenori Nakaoka
Growth and death are both fundamental macroscopic properties for all living matters, and thus cell division and mortality rates are good parameters for characterizing cellular physiology in a given environment. While population growth rates in various conditions have been reported in literature, death rate is rarely measured, especially in favorable culture conditions where cells grow exponentially. In our recent study (Nakaoka and Wakamoto, 2017), we developed a microfluidics-based platform to track multiple single cell lineages until death...
August 13, 2017: Microbial Cell
https://www.readbyqxmd.com/read/28912647/accelerometery-and-heart-rate-responses-of-professional-fast-medium-bowlers-in-one-day-and-multi-day-cricket
#18
James A Johnstone, Gerwyn Hughes, Andrew C Mitchell, Paul A Ford, Tim Watson, Rob Duffield, Dan Gordon, Justin D Roberts, Andrew T Garrett
The physical demands of fast-medium bowling are increasingly being recognised, yet comparative exploration of the differing demands between competitive formats (i.e. one-day [OD] versus multi-day [MD] matches) remain minimal. The aim of this study was to describe in-match physiological profiles of professional fast-medium bowlers from England across different versions of competitive matches using a multivariable wearable monitoring device. Seven professional cricket fast-medium bowlers wore the Bioharness(TM) monitoring device during matches, over three seasons (>80 hours in-match)...
September 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28912462/impacts-of-light-limitation-on-corals-and-crustose-coralline-algae
#19
Pia Bessell-Browne, Andrew P Negri, Rebecca Fisher, Peta L Clode, Ross Jones
Turbidity associated with elevated suspended sediment concentrations can significantly reduce underwater light availability. Understanding the consequences for sensitive organisms such as corals and crustose coralline algae (CCA), requires an understanding of tolerance levels and the time course of effects. Adult colonies of Acropora millepora and Pocillopora acuta, juvenile P. acuta, and the CCA Porolithon onkodes were exposed to six light treatments of ~0, 0.02, 0.1, 0.4, 1.1 and 4.3 mol photons m(-2) d(-1), and their physiological responses were monitored over 30 d...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911967/applications-of-nuclear-magnetic-resonance-in-lipid-analyses-an-emerging-powerful-tool-for-lipidomics-studies
#20
REVIEW
Jingbo Li, Thomas Vosegaard, Zheng Guo
The role of lipids in cell, tissue, and organ physiology is crucial; as many diseases, including cancer, diabetes, neurodegenerative, and infectious diseases, are closely related to absorption and metabolism of lipids. Mass spectrometry (MS) based methods are the most developed powerful tools to study the synthetic pathways and metabolic networks of cellular lipids in biological systems; leading to the birth of an emerging subject lipidomics, which has been extensively reviewed. Nuclear magnetic resonance (NMR), another powerful analytical tool, which allows the visualization of single atoms and molecules, is receiving increasing attention in lipidomics analyses...
September 11, 2017: Progress in Lipid Research
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