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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/28900838/comparative-nutritional-value-of-jatropha-curcas-protein-isolate-and-soy-protein-isolate-in-common-carp
#2
Sunil Nepal, Vikas Kumar, Harinder P S Makkar, Timo Stadtlander, Nicholas Romano, Klaus Becker
Jatropha seed cake (JSC) is an excellent source of protein but does contain some antinutritional factors (ANF) that can act as toxins and thus negatively affect the growth and health status of fish. While this can limit the use of JSC, detoxified Jatropha protein isolate (DJPI) may be a better option. An 8-week study was performed to evaluate dietary DJPI to common carp Cyprinus carpio. Five iso-nitrogenous diets (crude protein of 38%) were formulated that consisted of a C ontrol (fish meal (FM) based protein), J 50 or J 75 (50 and 75% of FM protein replaced by DJPI), and S 50 or S 75 (50 and 75% of FM protein replaced by soy protein isolate, SPI) and fed to triplicate groups of 75 carp fingerlings (75; av...
September 12, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28861581/a-microfluidic-device-for-the-batch-adsorption-of-a-protein-on-adsorbent-particles
#3
Hoon Suk Rho, Alexander Thomas Hanke, Marcel Ottens, Han Gardeniers
A microfluidic platform or "microfluidic batch adsorption device" is presented, which performs two sets of 9 parallel protein incubations with/without adsorbent particles to achieve an adsorption isotherm of a protein in a single experiment. The stepwise concentration gradient of a target protein was created by the integration of microvalves into the device. The nanoliter-scale reactor (41 nl) allows about 5000 times reduction of sample consumption and fast analysis compared with a conventional 96 well plate...
September 1, 2017: Analyst
https://www.readbyqxmd.com/read/28856047/high-sensitivity-detection-of-cardiac-troponin-i-with-uv-led-excitation-for-use-in-point-of-care-immunoassay
#4
Olga Rodenko, Susann Eriksson, Peter Tidemand-Lichtenberg, Carl Peder Troldborg, Henrik Fodgaard, Sylvana van Os, Christian Pedersen
High-sensitivity cardiac troponin assay development enables determination of biological variation in healthy populations, more accurate interpretation of clinical results and points towards earlier diagnosis and rule-out of acute myocardial infarction. In this paper, we report on preliminary tests of an immunoassay analyzer employing an optimized LED excitation to measure on a standard troponin I and a novel research high-sensitivity troponin I assay. The limit of detection is improved by factor of 5 for standard troponin I and by factor of 3 for a research high-sensitivity troponin I assay, compared to the flash lamp excitation...
August 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28837526/mitochondrial-dna-is-released-in-urine-of-sirs-patients-with-acute-kidney-injury-and-correlates-with-severity-of-renal-dysfunction
#5
Marcel P B Jansen, Wilco P Pulskens, Loes M Butter, Sandrine Florquin, Nicole P Juffermans, Joris J T H Roelofs, Jaklien C Leemans
Systemic inflammatory response syndrome (SIRS) is characterized by the activation of the innate immune system resulting in stimulation of inflammatory responses, coagulation, and platelet activation, that may contribute to complication such as the development of acute kidney injury (AKI). AKI importantly worsens the outcome of SIRS, implying the existence of a detrimental cross-talk via systemic messages. Mitochondria are a source of damage-associated molecular patterns (DAMPs) and are thought to form a molecular link between tissue injury and stimulation of innate immunity...
August 23, 2017: Shock
https://www.readbyqxmd.com/read/28836933/intracerebral-hemorrhage-related-with-penicillium-species-following-deceased-donor-liver-transplant
#6
Huseyin Yonder, Sami Akbulut, Huseyin Kocaaslan, Volkan Ince, Nese Karadag, Gokhan Demirtas, Ayse Selimoglu, Sezai Yilmaz
Early or late posttransplant opportunistic infections are among the leading complications after liver transplant. The source of early posttransplant opportunistic infections is usually the patient, the implantation of an infected graft, contamination during a surgical procedure, or invasive interventions performed at the intensive care unit. A 10-year-old male patient with Wilson disease (Pediatric End-Stage Liver Disease Score of 42, Child-Pugh score of 12, total bilirubin 40 mg/dL, platelet count 55?000/mL, hemoglobin level 6...
August 24, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28831232/effect-of-paddy-straw-plus-nonforage-fiber-sources-based-complete-rations-with-different-levels-of-neutral-detergent-fiber-on-hemato-biochemical-and-mineral-profile-of-lactating-dairy-cows
#7
Biju Chacko, K M Syam Mohan, K Ally, K Shyama, K S Anil, C T Sathian
AIM: This study was conducted to assess the effect of feeding paddy straw plus nonforage fiber sources based complete rations with different levels of neutral detergent fiber (NDF) on hemato-biochemical and mineral parameters of lactating dairy cows. MATERIALS AND METHODS: The study was conducted for 6 months in 18 lactating dairy cows, divided into three groups of six each, by feeding them on paddy straw plus nonforage fiber sources based complete rations containing different levels of NDF, in two phases of 3 months (90 days) each, being the early and mid lactation phases, respectively...
July 2017: Veterinary World
https://www.readbyqxmd.com/read/28827407/arl8b-is-required-for-lysosomal-degradation-of-maternal-proteins-in-the-visceral-yolk-sac-endoderm-of-mouse-embryos
#8
Miho Oka, Keisuke Hashimoto, Yoshifumi Yamaguchi, Shin-Ichiro Saitoh, Yuki Sugiura, Yuji Motoi, Kurara Honda, Yorifumi Kikko, Shinya Ohata, Makoto Suematsu, Masayuki Miura, Kensuke Miyake, Toshiaki Katada, Kenji Kontani
The small GTPase Arl8b localizes primarily to lysosomes and is involved in lysosomal motility and fusion. Here, we show that Arl8b is required for lysosomal degradation of maternal proteins in the visceral yolk sac endoderm (VYSE), an apical cell layer of the visceral yolk sac, of mouse embryos. The VYSE actively takes up maternal materials from uterine fluid and degrades them in lysosomes to provide breakdown products to the embryo as energy sources. Arl8b gene-trap mice (Arl8b(-/-) ) displayed decreased early embryo body size...
August 21, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28821308/influence-of-gamma-irradiation-on-porcine-serum-albumin-structural-properties-and-allergenicity
#9
Xudong Zhu, Wei Wang, Juan Shen, Xinglian Xu, Guanghong Zhou
Pork provides an ideal source of food energy; however, pork can elicit an allergic reaction, and porcine serumalbumin (PSA) has been identified as a major allergen. This study examined the impact of gamma irradiation on the allergenicity and structural qualities of PSA; the PSA solution was gamma-irradiated at 1, 2, 4, 6, and 8 kGy. Allergenicity was investigated by immunoblotting and competitive indirect ELISA using serum from patients who are allergic to pork, and conformational changes in irradiated PSA were measured by circular dichroism, sulfhydryl group detection, and fluorescence emission spectra...
August 18, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28802982/reducing-of-salivary-%C3%AE-amylase-inhibition-by-using-bovine-serum-albumin-and-calcium-chloride-for-forensic-saliva-screening
#10
Jun Ohta, Masako Ohmura
Inhibiting salivary α-amylase is a critical issue of forensic saliva identification using the catalytic method. This study aims to identify human α-amylase inhibitors in forensic saliva screening by using a blue starch amylase test and to measure the extent of enzyme inhibition. Thus, in order to demonstrate the presence of inhibitors, we prepared positively charged metal ion sources or chelators that were mixed into the saliva stains. The results of this study show that ferric chloride (FeCl3), magnesium chloride, ethylenediaminetetraacetic acid, and citric acid significantly decrease the α-amylase activity of saliva stains...
September 2017: Legal Medicine
https://www.readbyqxmd.com/read/28801174/the-cerebral-collateral-circulation-relevance-to-pathophysiology-and-treatment-of-stroke
#11
REVIEW
Myron D Ginsberg
The brain's collateral circulation consists of arterial anastomotic channels capable of providing nutrient perfusion to brain regions whose normal sources of flow have become compromised, as occurs in acute ischemic stroke. Modern CT-based neuroimaging is capable of providing detailed information as to collateral extent and sufficiency and is complemented by magnetic resonance-based methods. In the present era of standard-of-care IV thrombolysis for acute ischemic stroke, and following the recent therapeutic successes of randomized clinical trials of acute endovascular intervention, the sufficiency of the collateral circulation has been convincingly established as a key factor influencing the likelihood of successful reperfusion and favorable clinical outcome...
August 8, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28796948/identification-of-polyphenol-specific-innate-epitopes-that-originated-from-a-resveratrol-analogue
#12
Mai Furuhashi, Yukinori Hatasa, Sae Kawamura, Takahiro Shibata, Mitsugu Akagawa, Koji Uchida
Polyphenols have received a significant amount of attention in disease prevention because of their unique chemical and biological properties. However, the underlying molecular mechanism for their beneficial effects remains unclear. We have now identified a polyphenol as a source of innate epitopes detected in natural IgM and established a unique gain-of-function mechanism in the formation of innate epitopes by polyphenol via the polymerization of proteins. Upon incubation with bovine serum albumin (BSA) under physiological conditions, several polyphenols converted the protein into the innate epitopes recognized by the IgM Abs...
September 5, 2017: Biochemistry
https://www.readbyqxmd.com/read/28796799/differential-outcomes-of-zika-virus-infection-in-aedes-aegypti-orally-challenged-with-infectious-blood-meals-and-infectious-protein-meals
#13
Yan-Jang S Huang, Amy C Lyons, Wei-Wen Hsu, So Lee Park, Stephen Higgs, Dana L Vanlandingham
BACKGROUND: Infection of mosquitoes is an essential step for the transmission of mosquito-borne arboviruses in nature. Engorgement of infectious blood meals from viremic infected vertebrate hosts allows the entry of viruses and initiates infection of midgut epithelial cells. Historically, the infection process of arboviruses in mosquitoes has been studied through the engorgement of mosquitoes from viremic laboratory animals or from artificial feeders containing blood mixed with viruses harvested from cell cultures...
2017: PloS One
https://www.readbyqxmd.com/read/28793328/liver-tissue-fragments-obtained-from-males-are-the-most-promising-source-of-human-hepatocytes-for-cell-based-therapies-flow-cytometric-analysis-of-albumin-expression
#14
Karolina Ewa Zakrzewska, Anna Samluk, Agnieszka Wencel, Krzysztof Dudek, Dorota Genowefa Pijanowska, Krzysztof Dariusz Pluta
Cell-based therapies that could provide an alternative treatment for the end-stage liver disease require an adequate source of functional hepatocytes. There is little scientific evidence for the influence of patient's age, sex, and chemotherapy on the cell isolation efficiency and metabolic activity of the harvested hepatocytes. The purpose of this study was to investigate whether hepatocytes derived from different sources display differential viability and biosynthetic capacity. Liver cells were isolated from 41 different human tissue specimens...
2017: PloS One
https://www.readbyqxmd.com/read/28792091/the-combination-of-mir-122-overexpression-and-let-7f-silencing-induces-hepatic-differentiation-of-adipose-tissue-derived-stem-cells
#15
Nahid Davoodian, Abbas S Lotfi, Masoud Soleimani, Hori Ghaneialvar
Human adipose tissue-derived stem cells (hADSCs) have been considered as a promising source for cell therapy of liver diseases due to their accessibility, abundance, and expression of hepatocyte markers. Currently, the important role of certain microRNAs (miRNAs) has been reported during hepatic differentiation of stem cells. However, the combination effect of miRNAs on hepatic differentiation of these cells needs to be more investigated. The present study seeks to determine whether the combination of miRNAs can enhance hepatic differentiation of hADSCs in the absence of any other stimulation...
August 9, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28729654/cryopreservation-protocol-for-human-biliary-tree-stem-progenitors-hepatic-and-pancreatic-precursors
#16
Lorenzo Nevi, Vincenzo Cardinale, Guido Carpino, Daniele Costantini, Sabina Di Matteo, Alfredo Cantafora, Fabio Melandro, Roberto Brunelli, Carlo Bastianelli, Camilla Aliberti, Marco Monti, Daniela Bosco, Pasquale Bartolomeo Berloco, Pierluigi Benedetti Panici, Lola Reid, Eugenio Gaudio, Domenico Alvaro
Human biliary tree stem/progenitor cells (hBTSCs) are being used for cell therapies of patients with liver cirrhosis. A cryopreservation method was established to optimize sourcing of hBTSCs for these clinical programs and that comprises serum-free Kubota's Medium (KM) supplemented with 10% dimethyl sulfoxide (DMSO), 15% human serum albumin (HSA) and 0.1% hyaluronans. Cryopreserved versus freshly isolated hBTSCs were similar in vitro with respect to self-replication, stemness traits, and multipotency. They were able to differentiate to functional hepatocytes,cholangiocytes or pancreatic islets, yielding similar levels of secretion of albumin or of glucose-inducible levels of insulin...
July 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728456/quillaja-saponaria-bark-saponin-protects-wistar-rats-against-ferrous-sulphate-induced-oxidative-and-inflammatory-liver-damage
#17
Mustafa Ahmed Abdel-Reheim, Basim Anwar Shehata Messiha, Ali Ahmed Abo-Saif
CONTEXT: Saponins from different sources are historically reported in Chinese medicine to possess many beneficial effects. However, insufficient experimental data are available regarding the hepatoprotective potential of Quillaja bark saponin. OBJECTIVE: The protective effect of Quillaja saponaria Molina (Quillajaceae) bark triterpenoid saponin against iron-induced hepatotoxicity is compared to the standard N-acetylcysteine in adult male Wistar rats. MATERIALS AND METHODS: Animals were divided into (six) groups, namely a normal control, an N-acetylcysteine control (300 mg/kg/day, p...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28726547/three-dimensional-bio-printing-of-hepatic-structures-with-direct-converted-hepatocyte-like-cells
#18
Kyojin Kang, Yohan Kim, Seung Bum Lee, Ji Sook Kim, Sua Park, Wan-Doo Kim, Heung-Mo Yang, Sung-Joo Kim, Jaemin Jeong, Dongho Choi
Three-dimensional (3D) bio-printing technology is a promising new technology in the field of bio-artificial organ generation with regard to overcoming the limitations of organ supply. The cell source for bio-printing is very important. Here, we generated 3D hepatic scaffold with mouse induced hepatocyte-like cells (miHeps), and investigated whether their function was improved after transplantation in vivo. To generate miHeps, mouse embryonic fibroblasts were transformed with pMX retroviruses individually expressing hepatic transcription factors Hnf4a and Foxa3...
July 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28689279/three-dimensional-culture-of-a-genetically-modified-hepatoma-cell-line-using-macroporous-gelatin-beads
#19
Jane Marie Tonello, Saori Kawashima, Kazuki Sato, Yoshinori Kawabe, Akira Ito, Masamichi Kamihira
Hepatoma cells are a candidate cell source for bio-artificial livers. However, they exhibit reduced liver functions compared with primary hepatocytes. In our previous study, genetically engineered mouse hepatoma cells were created by transduction with vectors mediating inducible overexpression of eight liver-enriched transcription factors. Upon the induction of the liver-enriched transcription factors transduced, the cells expressed both phenotypic and genotypic liver functions at high levels. In the present study, we performed three-dimensional culture of these cells using macroporous gelatin beads...
July 8, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28677755/proteomic-analysis-and-comparison-of-intra%C3%A2-and-extracranial-cerebral-atherosclerosis-responses-to-hyperlipidemia-in-rabbits
#20
Zhi-Lan Tu, Bo Yu, Dong-Ya Huang, Rajeev Ojha, Shu-Kui Zhou, He-Di An, Rong Liu, Cui Du, Nan Shen, Jian-Hui Fu, Shuang-Xing Hou
The present study aimed to investigate protein expression levels of intra‑ and extracranial atherosclerosis in rabbits following administration of a high‑fat diet. Rabbits were randomly divided into control (group A; n=9) and high‑fat diet (group B; n=9) groups. At week 12, tissues were sectioned from the common carotid artery (CCA) and middle cerebral artery (MCA). Pathological analysis was performed. Differential protein expression levels were examined by 2‑D gel electrophoresis (2‑DE) and mass spectrometry (MS) analysis and validated by western blotting...
September 2017: Molecular Medicine Reports
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