keyword
MENU ▼
Read by QxMD icon Read
search

Artificial blood

keyword
https://www.readbyqxmd.com/read/28226770/a-multiscale-model-based-analysis-of-the-multi-tissue-interplay-underlying-blood-glucose-regulation-in-type-i-diabetes
#1
Federico Wadehn, Stephan Schaller, Thomas Eissing, Markus Krauss, Lars Kupfer, Federico Wadehn, Stephan Schaller, Thomas Eissing, Markus Krauss, Lars Kupfer, Federico Wadehn, Markus Krauss, Lars Kupfer, Stephan Schaller, Thomas Eissing
A multiscale model for blood glucose regulation in diabetes type I patients is constructed by integrating detailed metabolic network models for fat, liver and muscle cells into a whole body physiologically-based pharmacokinetic/pharmacodynamic (pBPK/PD) model. The blood glucose regulation PBPK/PD model simulates the distribution and metabolization of glucose, insulin and glucagon on an organ and whole body level. The genome-scale metabolic networks in contrast describe intracellular reactions. The developed multiscale model is fitted to insulin, glucagon and glucose measurements of a 48h clinical trial featuring 6 subjects and is subsequently used to simulate (in silico) the influence of geneknockouts and drug-induced enzyme inhibitions on whole body blood glucose levels...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226473/alterations-in-cardiovascular-system-under-artificially-simulated-microgravity-preliminary-study
#2
Aleksandr A Fedotov, Sergey A Akulov, Anna S Akulova, Aleksandr A Fedotov, Sergey A Akulov, Anna S Akulova, Aleksandr A Fedotov, Anna S Akulova, Sergey A Akulov
The main goal of this work is to study the alterations occurred in human cardiovascular system under artificially simulated microgravity by using special short-arm centrifuge. We have used arterial blood pressure, ankle-brachial pressure index and accelerated photoplethysmography approach to determine the effects of artificially simulated microgravity on vascular system. The group of 30 healthy male volunteers was studied in a short-arm human centrifuge at two levels of gravity gradients along head-to-foot direction (Gz): normal gravity gradient of 1 Gz and so called microgravity mode of 0...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226266/parallel-artificial-liquid-membrane-extraction-of-new-psychoactive-substances-in-plasma-and-whole-blood
#3
Linda Vårdal, Hilde-Merete Askildsen, Astrid Gjelstad, Elisabeth Leere Øiestad, Hilde Marie Erøy Edvardsen, Stig Pedersen-Bjergaard
Parallel artificial liquid membrane extraction (PALME) was combined with ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) and the potential for screening of new psychoactive substances (NPS) was investigated for the first time. PALME was performed in 96-well format comprising a donor plate, a supported liquid membrane (SLM), and an acceptor plate. Uncharged NPS were extracted from plasma or whole blood, across an organic SLM, and into an aqueous acceptor solution, facilitated by a pH gradient...
February 14, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28224103/management-of-parenteral-nutrition-in-critically-ill-patients
#4
REVIEW
Paolo Cotogni
Artificial nutrition (AN) is necessary to meet the nutritional requirements of critically ill patients at nutrition risk because undernutrition determines a poorer prognosis in these patients. There is debate over which route of delivery of AN provides better outcomes and lesser complications. This review describes the management of parenteral nutrition (PN) in critically ill patients. The first aim is to discuss what should be done in order that the PN is safe. The second aim is to dispel "myths" about PN-related complications and show how prevention and monitoring are able to reach the goal of "near zero" PN complications...
February 4, 2017: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28219431/assessment-of-triglyceride-and-cholesterol-in-overweight-people-based-on-multiple-linear-regression-and-artificial-intelligence-model
#5
Jing Ma, Jiong Yu, Guangshu Hao, Dan Wang, Yanni Sun, Jianxin Lu, Hongcui Cao, Feiyan Lin
BACKGROUND: The prevalence of high hyperlipemia is increasing around the world. Our aims are to analyze the relationship of triglyceride (TG) and cholesterol (TC) with indexes of liver function and kidney function, and to develop a prediction model of TG, TC in overweight people. METHODS: A total of 302 adult healthy subjects and 273 overweight subjects were enrolled in this study. The levels of fasting indexes of TG (fs-TG), TC (fs-TC), blood glucose, liver function, and kidney function were measured and analyzed by correlation analysis and multiple linear regression (MRL)...
February 20, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28218293/plasma-exosome-profiling-of-cancer-patients-by-a-next-generation-systems-biology-approach
#6
Valeriy Domenyuk, Zhenyu Zhong, Adam Stark, Nianqing Xiao, Heather A O'Neill, Xixi Wei, Jie Wang, Teresa T Tinder, Sonal Tonapi, Janet Duncan, Tassilo Hornung, Andrew Hunter, Mark R Miglarese, Joachim Schorr, David D Halbert, John Quackenbush, George Poste, Donald A Berry, Günter Mayer, Michael Famulok, David Spetzler
Technologies capable of characterizing the full breadth of cellular systems need to be able to measure millions of proteins, isoforms, and complexes simultaneously. We describe an approach that fulfils this criterion: Adaptive Dynamic Artificial Poly-ligand Targeting (ADAPT). ADAPT employs an enriched library of single-stranded oligodeoxynucleotides (ssODNs) to profile complex biological samples, thus achieving an unprecedented coverage of system-wide, native biomolecules. We used ADAPT as a highly specific profiling tool that distinguishes women with or without breast cancer based on circulating exosomes in their blood...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28215883/changes-in-milk-urea-around-insemination-are-negatively-associated-with-conception-success-in-dairy-cows
#7
A Albaaj, G Foucras, D Raboisson
Dietary protein levels are a risk factor for poor reproductive performance. Conception is particularly impaired in cases of high blood or milk urea. The objective of this study was to investigate the association between conception and low milk urea or changes in milk urea around artificial insemination (AI). Data were obtained from the French Milk Control Program for a 4-yr period (2009-2012). Milk urea values between 250 and 450 mg/kg (4.3 and 7.7 mM) were considered intermediate (I), and values ≤150 mg/kg (2...
February 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28212709/erythrocyte-deformability-and-aggregation-responses-to-intermittent-and-continuous-artificial-gravity-exposure
#8
Grau Marijke, Abeln Vera, Vogt Tobias, Bloch Wilhelm, Schneider Stefan
Artificial gravity protocols are used to improve g-tolerance of aviators and discussed as countermeasure during prolonged space flight. Little is known about the impact of artificial gravity on the red blood cells (RBC). The purpose of the study was to test how artificial gravity affects RBC deformability and aggregation, which are important determinants of microcirculation. Nine male subjects were exposed to two hypergravity protocols using a short arm human centrifuge: a continuous (CONT) protocol with constant +2Gz for 30min and an intermittent (INTER) protocol with repeated intervals of +2Gz and rest...
February 2017: Life Sciences in Space Research
https://www.readbyqxmd.com/read/28210996/quantitative-evaluation-of-oxygen-metabolism-in-the-intratumoral-hypoxia-18-f-fluoromisonidazole-and-15-o-labelled-gases-inhalation-pet
#9
Tadashi Watabe, Yasukazu Kanai, Hayato Ikeda, Genki Horitsugi, Keiko Matsunaga, Hiroki Kato, Kayako Isohashi, Kohji Abe, Eku Shimosegawa, Jun Hatazawa
BACKGROUND: Intratumoral hypoxia is one of the resistant factors in radiotherapy and chemotherapy for cancer. Although it is detected by (18)F-fluoromisonidazole (FMISO) PET, the relationship between intratumoral hypoxia and oxygen metabolism has not been studied. The purpose of this study was to evaluate the intratumoral perfusion and oxygen metabolism in hypoxic regions using the rat xenograft model. Ten male Fischer rats with C6 glioma (body weight = 220 ± 15 g) were investigated with (18)F-FMISO PET and steady-state inhalation method of (15)O-labelled gases PET...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28210544/cataracts-and-strabismus-associated-with-hand-rearing-using-artificial-milk-formulas-in-bengal-tiger-panthera-tigris-spp-tigris-cubs
#10
Rogério Ribas Lange, Leandro Lima, Erika Frühvald, Vera Sônia Nunes da Silva, Aparecida Sônia de Souza, Fabiano Montiani-Ferreira
The aim of this investigation is to describe the potential contributing nutritional factors involved in the development of ophthalmic and dermatologic changes in four Bengal tiger (Panthera tigris spp tigris) cubs fed an artificial milk formula. The affected animals were compared with two other tiger cubs that had been nursed by their dam naturally. After the first clinical signs appeared, the tiger cubs underwent ophthalmic evaluation. Severe symmetric generalized alopecia over the trunk, sparing the head and distal portion of the front and rear limbs, bilateral cataracts and strabismus were noticed...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28210225/increased-apoptosis-in-the-paraventricular-nucleus-mediated-by-at1r-ras-erk1-2-signaling-results-in-sympathetic-hyperactivity-and-renovascular-hypertension-in-rats-after-kidney-injury
#11
Hongguo Zhu, Lishan Tan, Yumin Li, Jiawen Li, Minzi Qiu, Lanying Li, Mengbi Zhang, Min Liang, Aiqing Li
Background: The central nervous system plays a vital role in the development of hypertension, but the molecular regulatory mechanisms are not fully understood. This study aimed to explore signaling in the paraventricular nucleus (PVN) which might contribute to renal hypertension. Methods: Renal hypertension model was established by five-sixth nephrectomy operation (5/6Nx) in male Sprague Dawley rats. Ten weeks afterwards, they were random assigned to no treatment, or intracerebroventricular injection (ICV) with artificial cerebrospinal fluid, losartan [angiotensin II receptor type 1 (AT1R) antagonist], farnesylthiosalicylic acid (Ras inhibitor), PD98059 (MEK inhibitor), or SB203580 (p38 inhibitor) and Z-DEVD-FMK (caspase-3 inhibitor)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28208285/determining-gender-by-raman-spectroscopy-of-a-bloodstain
#12
Aliaksandra Sikirzhytskaya, Vitali Sikirzhytski, Igor K Lednev
The development of novel methods for forensic science is a constantly growing area of modern analytical chemistry. Raman spectroscopy is one of a few analytical techniques capable of nondestructive and nearly instantaneous analysis of a wide variety of forensic evidence, including body fluid stains, at the scene of a crime. In this proof-of-concept study, Raman microspectroscopy was utilized for gender identification based on dry bloodstains. Raman spectra were acquired in mapping mode from multiple spots on a bloodstain to account for intrinsic sample heterogeneity...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28202370/to-evaluate-the-role-of-platelet-rich-plasma-in-healing-of-acute-diaphyseal-fractures-of-the-femur
#13
Roop Singh, Rajesh Rohilla, Jeetesh Gawande, Paramjit Kumar Sehgal
PURPOSE: New research is focusing on the use of autologous growth factors to increase the effect of bone fracture healing while decreasing the amount of healing time for the patient. Platelets have been demonstrated to be the natural storage vessel for several growth factors and cytokines that promote blood coagulation, tissue repair, and the process of bone mineralization. The present study aims to evaluate the role of platelet-rich plasma (PRP) in healing of acute femoral shaft fractures radiologically...
January 20, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/28202246/analysis-of-myocardial-perfusion-parameters-in-an-ex-vivo-porcine-heart-model-using-third-generation-dual-source-ct
#14
Gert Jan Pelgrim, Taylor M Duguay, J Marco A Stijnen, Akos Varga-Szemes, Sjoerd Van Tuijl, U Joseph Schoepf, Matthijs Oudkerk, Rozemarijn Vliegenthart
PURPOSE: To evaluate the relationship between fractional flow reserve (FFR)-determined coronary artery stenosis severity and myocardial perfusion parameters derived from dynamic myocardial CT perfusion imaging (CTP) in an ex-vivo porcine heart model. METHODS: Six porcine hearts were perfused according to Langendorff. Circulatory parameters such as arterial blood flow (ABF) (L/min), mean arterial pressure (MAP) (mmHg) and heart rate (bpm) were monitored. Using an inflatable cuff and monitored via a pressure wire, coronary artery stenoses of different FFR grades were created (no stenosis, FFR = 0...
February 3, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28198552/cortical-spreading-depolarizations-in-the-postresuscitation-period-in-a-cardiac-arrest-male-rat-model
#15
Frederik Boe Hansen, Niels Secher, Morten Skovgaard Jensen, Leif Østergaard, Else Tønnesen, Asger Granfeldt
Neurological injury develops over days following cardiac arrest (CA); however, the exact mechanisms remain unknown. After stroke or trauma, the progression of neurological injury is associated with cortical-spreading depolarizations (CSDs). The objective was to investigate whether CA and subsequent resuscitation in rats are associated with 1) the development of spontaneous negative direct current (DC) shifts indicative of CSDs, and 2) changes in artificially induced CSDs in the postresuscitation period. Male Sprague-Dawley rats were randomized into four groups: 1) CA 90, 2) Control 90, 3) CA 360, and 4) Control 360...
February 15, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28187049/fiber-bundle-design-for-an-integrated-wearable-artificial-lung
#16
Shalv P Madhani, Brian J Frankowski, William J Federspiel
Mechanical ventilation and ECMO are the only viable treatment options for lung failure patients at the end stage, including ARDS and COPD. These treatments however are associated with high morbidity and mortality due to long wait times for lung transplant. Contemporary clinical literature has shown ambulation improves post-transplant outcomes in lung failure patients. Given this, we are developing the PAAL, a truly wearable artificial lung that allows for ambulation. In this study, we targeted 180 ml/min oxygenation and determined the form factor for a hollow fiber membrane (HFM) bundle for the PAAL...
February 7, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28186726/in-vitro-and-in-vivo-visualization-and-trapping-of-fluorescent-magnetic-microcapsules-in-a-bloodstream
#17
Denis V Voronin, Olga A Sindeeva, Maxim A Kurochkin, Oksana Mayorova, Ivan V Fedosov, Oksana Semyachkina-Glushkovskaya, Dmitry A Gorin, Valery V Tuchin, Gleb B Sukhorukov
Remote navigation and targeted delivery of biologically active compounds is one of the current challenges in the development of drug delivery systems. Modern methods of micro- and nanofabrication give us new opportunities to produce particles and capsules bearing cargo to deploy and possess magnetic properties to be externally navigated. In this work we explore multilayer composite magnetic microcapsules as targeted delivery systems in vitro and in vivo studies under natural conditions of living organism. Herein, we demonstrate magnetic addressing of fluorescent composite microcapsules with embedded magnetite nanoparticles in blood flow environment...
February 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28183365/calm-merino-ewes-have-a-higher-ovulation-rate-and-more-multiple-pregnancies-than-nervous-ewes
#18
E van Lier, K W Hart, C Viñoles, B Paganoni, D Blache
In 1990, two selection lines of Merino sheep were established for low and high behavioural reactivity (calm and nervous temperament) at the University of Western Australia. Breeding records consistently showed that calm ewes weaned 10% to 19% more lambs than the nervous ewes. We hypothesise that calm ewes could have a higher ovulation rate than nervous ewes and/or calm ewes could have a lower rate of embryo mortality than nervous ewes. We tested these hypotheses by comparing the ovulation rate and the rate of embryo mortality between the calm and nervous lines before and after synchronisation and artificial insemination...
February 10, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28183328/laboratory-colonization-of-the-european-invasive-mosquito-aedes-finlaya-koreicus
#19
Silvia Ciocchetta, Jonathan M Darbro, Francesca D Frentiu, Fabrizio Montarsi, Gioia Capelli, John G Aaskov, Gregor J Devine
BACKGROUND: Aedes (Finlaya) koreicus (Edwards) is a mosquito that has recently entered Europe from Asia. This species is considered a potential threat to newly colonized territories, but little is known about its capacity to transmit pathogens or ability to compete with native mosquito species. The establishment of a laboratory colony is a necessary first step for further laboratory studies on the biology, ecology and vector competence of Ae. koreicus. RESULTS: A self-mating colony was established at QIMR Berghofer Medical Research Institute (Brisbane, Australia) from eggs of the F1 progeny of individuals collected as free-living larvae in northeastern Italy (Belluno province)...
February 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28170370/development-of-a-gene-panel-for-next-generation-sequencing-of-clinically-relevant-mutations-in-cell-free-dna-from-cancer-patients
#20
Umberto Malapelle, Clara Mayo de-Las-Casas, Danilo Rocco, Monica Garzon, Pasquale Pisapia, Nuria Jordana-Ariza, Maria Russo, Roberta Sgariglia, Caterina De Luca, Francesco Pepe, Alejandro Martinez-Bueno, Daniela Morales-Espinosa, María González-Cao, Niki Karachaliou, Santiago Viteri Ramirez, Claudio Bellevicine, Miguel Angel Molina-Vila, Rafael Rosell, Giancarlo Troncone
BACKGROUND: When tumour tissue is unavailable, cell-free DNA (cfDNA)can serve as a surrogate for genetic analyses. Because mutated alleles in cfDNA are usually below 1%, next-generation sequencing (NGS)must be narrowed to target only clinically relevant genes. In this proof-of-concept study, we developed a panel to use in ultra-deep sequencing to identify such mutations in cfDNA. METHODS: Our panel ('SiRe') covers 568 mutations in six genes (EGFR, KRAS, NRAS, BRAF, cKIT and PDGFRα)involved in non-small-cell lung cancer (NSCLC), gastrointestinal stromal tumour, colorectal carcinoma and melanoma...
February 7, 2017: British Journal of Cancer
keyword
keyword
58745
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"