A computerized mathematical model of arterial thrombi recorded by light transmission.

Abstract:

:For several years, the formation and evolution of thrombi in small arteries of rats has been quantitatively studied at the laboratory of PHYSIOLOGY and PHYSIOPATHOLOGY at the V.U.B. Global size parameters can be determined by projecting the image of a small arterial segment onto photosensitive cells. The transmitted light intensity is a measure for the thrombotic phenomenon. This unique method permitted extensive in vivo study of the platelet-vessel wall interaction and local thrombosis. We actually attempt to refine the spatial resolution of these measurements in order to get information on texture and form of the thrombotic mass at any stage of its evolution. Therefore a thorough understanding of how light propagates through non hemolyzed blood is essential. Application of results from Twersky's multiple scattering theory, combined with appropriate border conditions and parameter values was attempted. It is well known that the erythrocytes are mostly aligned in the direction of the blood flow. In order to explain the measured intensity profiles, we had to postulate alignment in the plane perpendicular to the flow as well. The theoretical predictions are in good agreement with the experimental values if we assume almost perfect alignment of the erythrocytes such that their short axes are pointing in the direction of the center of the artery. Conclusive evidence of the interaction between local flow properties and light transmission could be found by observing arteries with perturbated flow.

journal_name

Adv Exp Med Biol

authors

Nyssen M,Blockeel E,Steenhaut O,Bourgain R

doi

10.1007/978-1-4684-4895-5_80

subject

Has Abstract

pub_date

1984-01-01 00:00:00

pages

823-34

eissn

0065-2598

issn

2214-8019

journal_volume

180

pub_type

杂志文章
  • Biological reactive intermediates of mycotoxins.

    abstract::The various reactions involved in the formation and actions of biological reactive intermediates of AFB1 are undoubtedly common to the wide variety of mycotoxins. The structural diversity of mycotoxins and their widespread occurrence in nature has made them a significant class of model environmental toxicants for mode...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-1-4684-5134-4_56

    authors: Hsieh DP

    更新日期:1986-01-01 00:00:00

  • MHC antigens expressed on 3LL metastatic variants: correlation with the expression of a TSP-180 protein.

    abstract::In attempts to correlate metastatic potential with specific properties of tumor cells, homogeneous subpopulations, which are endowed with low or high metastatic potential, have been selected from Lewis lung carcinoma (3LL). In particular, since cell surface constituents are possibly involved in the metastatic process,...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-1-4899-5037-6_16

    authors: Sacchi A,Falcioni R,Tibursi G,Apollonj Ghetti C

    更新日期:1988-01-01 00:00:00

  • Lipofuscin as an indicator of oxidative stress and aging.

    abstract::There is a considerable body of evidence indicating that oxidative stress is a causal factor both in lipofuscinogenesis as well as in aging. Studies on the effects of pro-oxidants and antioxidants on lipofuscin accumulation in cultured rat cardiac myocytes and human glial cells indicated that pro-oxidants accelerate w...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-1-4899-5339-1_2

    authors: Sohal RS,Brunk UT

    更新日期:1989-01-01 00:00:00

  • Inhibition of azoxymethane initiated colon tumor and aberrant crypt foci development by bovine lactoferrin administration in F344 rats.

    abstract::The influence of bovine lactoferrin (bLf) on colon carcinogenesis was investigated in male F344 rats treated with azoxymethane (AOM). In experiment I, 2% and 0.2% bLf, and Bifidobacterium longum (B. longum) as a positive control at 3% were given in the diet for 4 weeks, along with two s.c. 15 mg/kg injections of AOM o...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-1-4757-9068-9_34

    authors: Tsuda H,Sekine K,Nakamura J,Ushida Y,Kuhara T,Takasuka N,Kim DJ,Asamoto M,Baba-Toriyama H,Moore MA,Nishino H,Kakizoe T

    更新日期:1998-01-01 00:00:00

  • AMD-Associated HTRA1 Variants Do Not Influence TGF-β Signaling in Microglia.

    abstract::Genetic variants of high-temperature requirement A serine peptidase 1 (HTRA1) and age-related maculopathy susceptibility 2 (ARMS2) are associated with age-related macular degeneration (AMD). One HTRA1 single nucleotide polymorphism (SNP) is situated in the promotor region (rs11200638) resulting in increased expression...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-3-030-27378-1_1

    authors: Akhtar-Schaefer I,Reuten R,Koch M,Pietsch M,Langmann T

    更新日期:2019-01-01 00:00:00

  • Biosensors as analytical tools in food fermentation industry.

    abstract::The food industries need rapid and affordable methods to assure the quality ofproducts and process control. Biosensors, combining a biological recognition element and a sensitive transducer, are versatile analytical tools that offer advantages as classical analytical methods due to their inherent specificity, selectiv...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-1-4419-7347-4_22

    authors: Barthelmebs L,Calas-Blanchard C,Istamboulie G,Marty JL,Noguer T

    更新日期:2010-01-01 00:00:00

  • The Initial Stage of Tumorigenesis in Drosophila Epithelial Tissues.

    abstract::Cancer development originates in a single mutant cell transformed from a normal cell, including further evolution of pro-tumor cells through additional mutations into malignant cancer tissues. Data from recent studies, however, suggest that most pro-tumor cells do not develop into tumors but remain dormant within or a...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-3-030-23629-8_5

    authors: Tamori Y

    更新日期:2019-01-01 00:00:00

  • Regulation of Mitochondrial Dynamics and Autophagy by the Mitochondria-Associated Membrane.

    abstract::Mitochondria are powerhouses and central to metabolism in cells. They are highly dynamic organelles that continuously fuse, divide, and move along the cytoskeleton to form the mitochondrial network. The fusion and fission are catalyzed by four dynamin-related GTPases in mammals that are controlled by a variety of prot...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-981-10-4567-7_3

    authors: Tagaya M,Arasaki K

    更新日期:2017-01-01 00:00:00

  • Simultaneous pathogen detection and antibiotic resistance characterization using SNP-based multiplexed oligonucleotide ligation-PCR (MOL-PCR).

    abstract::Extensive use of antibiotics in both public health and animal husbandry has resulted in rapid emergence of antibiotic resistance in almost all human pathogens, including biothreat pathogens. Antibiotic resistance has thus become a major concern for both public health and national security. We developed multiplexed ass...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-1-4419-5913-3_51

    authors: Song J,Li PE,Gans J,Vuyisich M,Deshpande A,Wolinsky M,White PS

    更新日期:2010-01-01 00:00:00

  • Histone deacetylases.

    abstract::Deacetylation of histones is required for gene regulation and cell cycle progression and the mediators, the histone deacetylases, are being vigorously pursued as drug targets for cancer chemotherapy. The deacetylases are also potential drug targets against infectious diseases and genome sequencing revealed proteins of...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-0-387-77570-8_7

    authors: Horn D

    更新日期:2008-01-01 00:00:00

  • Protein thiol-disulfide interchange and interfacing with biological systems.

    abstract::Disulfide-containing proteins offer unique advantages for mechanistic studies of the formation of native three-dimensional structure from unordered, reduced precursors. The main advantage is that covalent intermediates are formed; by characterizing these intermediates, one obtains substantial information about the rea...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-1-4684-3282-4_3

    authors: Wetlaufer DB,Saxena VP,Ahmed AK,Schaffer SW,Pick PW,Oh KJ,Peterson JD

    更新日期:1977-01-01 00:00:00

  • Effects of acute hypoxia on the inflection point of muscle oxygenation.

    abstract::The purpose of this study was to investigate the effects of acute hypoxia on the inflection point of muscle oxygenation (IPMO) using near-infrared spectroscopy during incremental bicycle exercise. Eight male subjects (age: 22 +/- 2 years) performed two ramp incremental bicycle exercise tests until exhaustion under eac...

    journal_title:Advances in experimental medicine and biology

    pub_type: 临床试验,杂志文章

    doi:10.1007/978-1-4419-1241-1_56

    authors: Osawa T,Kime R,Katsumura T,Yamamoto M

    更新日期:2010-01-01 00:00:00

  • Reduction in Cerebral Oxygenation After Prolonged Exercise in Hypoxia is Related to Changes in Blood Pressure.

    abstract::We investigated the relation between blood pressure and cerebral oxygenation (COX) immediately after exercise in ten healthy males. Subjects completed an exercise and recovery protocol while breathing either 21% (normoxia) or 14.1% (hypoxia) O2 in a randomized order. Each exercise session included four sets of cycling...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-1-4939-3023-4_12

    authors: Horiuchi M,Dobashi S,Kiuchi M,Endo J,Koyama K,Subudhi AW

    更新日期:2016-01-01 00:00:00

  • L-dopa-induced hypotension: depression of spinal sympathetic neurons by release of 5-hydroxytryptamine.

    abstract::In studies designed to determine the respective functional roles of two bulbospinal monoaminergic pathways to sympathetic preganglionic neurons, both L-dopa and precursors of 5-HT depressed transmission through excitatory spinal reflex and bulbospinal sympathetic pathways. Transmission through spinal reflex pathways w...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-1-4684-2511-6_13

    authors: Franz DN,Neumayr RJ,Hare BD

    更新日期:1977-01-01 00:00:00

  • A genomic model for differential hypoxic ventilatory responses.

    abstract::Inbred mice are routinely used as genetic models in lung biology. Among many phenotypic differences in lung function and structure, C3H/HeJ (C3) and C57BL/6J (B6) inbred mice also demonstrate a significantly different ventilatory pattern during acute hypoxic challenge. The present study rejects the hypothesis that a g...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/0-306-46825-5_8

    authors: Tankersley CG

    更新日期:2000-01-01 00:00:00

  • The ovalbumin gene: transcriptional regulation by estrogen.

    abstract::De novo synthesis of RNA sequences corresponding to intervening as well as to structural sequences of the ovalbumin gene have been detected in isolated oviduct nuclei. Their presence in the nuclear transcripts and their time course of induction support the hypothesis that transcription of structural and intervening se...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-1-4757-6589-2_25

    authors: Swaneck GE,Tsai SY,Tsai MJ,Nordstrom JL,Roop DR,O'Malley BW

    更新日期:1979-01-01 00:00:00

  • Novel Concepts: Langerhans Cells in the Tumour Microenvironment.

    abstract::Langerhans cells (LCs) are immune cells that reside in the stratified epithelium of the skin and mucosal membranes. They play a range of roles in the skin, including antigen presentation and maintenance of peripheral tolerance. Reports of LC numbers have been variable in different cancer types, with the majority of st...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-3-030-49270-0_8

    authors: Rajesh A,Hibma M

    更新日期:2020-01-01 00:00:00

  • Tau Oligomers.

    abstract::The accumulation of tau filaments in neurons is a pathological hallmark of various neurodegenerative diseases, including Alzheimer's disease. However, it is not the filamentous aggregates themselves, but non-filamentous tau species, tau oligomer, that is thought to be the culprit in tau-mediated neurodegeneration. The...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-981-32-9358-8_27

    authors: Maeda S,Takashima A

    更新日期:2019-01-01 00:00:00

  • Involvement of the multiple tumor suppressor genes and 12-lipoxygenase in human prostate cancer. Therapeutic implications.

    abstract::We performed a detailed and comprehensive study of the involvement of tumor suppressor genes in human prostate cancer. We utilized primers flanking either the restriction fragment length polymorphism (RFLP) or variable number of tandem repeat [VNTR; microsatellite or simple repeat site (SRS)] polymorphic sites to poly...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-1-4899-1813-0_7

    authors: Gao X,Porter AT,Honn KV

    更新日期:1997-01-01 00:00:00

  • The robustness continuum.

    abstract::Organisms are subject to random changes in their external environments, as well as in their internal components. A central goal of evolutionary systems biology is to understand how living systems cope with-and in some cases exploit-this variation. Many cellular and developmental processes operate with high fidelity to...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-1-4614-3567-9_20

    authors: Levy SF,Siegal ML

    更新日期:2012-01-01 00:00:00

  • Retbindin Is Capable of Protecting Photoreceptors from Flavin-Sensitized Light-Mediated Cell Death In Vitro.

    abstract::Retbindin (Rtbdn) is a novel protein of unknown function found exclusively in the retina. Recently, our group has suggested, from in silico analysis of the peptide sequence and in vitro binding data, that Rtbdn could function to bind riboflavin (RF) and its derivatives flavin adenine dinucleotide (FAD) and flavin mono...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-3-319-75402-4_60

    authors: Kelley RA,Al-Ubaidi MR,Naash MI

    更新日期:2018-01-01 00:00:00

  • A systems approach to discovering signaling and regulatory pathways--or, how to digest large interaction networks into relevant pieces.

    abstract::In the post-genomic era, the first step in any study of protein function is a homology search against the complete genome sequence of the organism of interest. By analogy, if we also wish to elucidate the cadre of signaling and regulatory pathways in the cell, an extremely powerful first step is to construct a complet...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-1-4419-8861-4_3

    authors: Ideker T

    更新日期:2004-01-01 00:00:00

  • Molecular Determinants of Cholesterol Binding to Soluble and Transmembrane Protein Domains.

    abstract::Cholesterol-protein interactions play a critical role in lipid metabolism and maintenance of cell integrity. To elucidate the molecular mechanisms underlying these interactions, a growing number of studies have focused on determining the crystal structures of a variety of proteins complexed with cholesterol. These inc...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-3-030-14265-0_3

    authors: Ounjian J,Bukiya AN,Rosenhouse-Dantsker A

    更新日期:2019-01-01 00:00:00

  • Development of Structure and Sensitivity of the Fish Inner Ear.

    abstract::Fish represent the largest group of vertebrates and display the greatest diversity of auditory structures. However, studies addressing how the form and function of the auditory system change during development to enhance perception of the acoustic environment are rather sparse in this taxon compared to other vertebrat...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-3-319-21059-9_14

    authors: Vasconcelos RO,Alderks PW,Sisneros JA

    更新日期:2016-01-01 00:00:00

  • Methods to Measure Water Permeability.

    abstract::Water permeability is a key feature of the cell plasma membranes and it has seminal importance for a number of cell functions such as cell volume regulation, cell proliferation, cell migration, and angiogenesis to name a few. The transport of water occurs mainly through plasma membrane water channels , the aquaporins,...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-94-024-1057-0_18

    authors: Solenov EI,Baturina GS,Katkova LE,Zarogiannis SG

    更新日期:2017-01-01 00:00:00

  • Lung function at age 18-25 years: a comparison of different reference value systems.

    abstract::The anthropometrical data of the Caucasian population have significantly changed within the last five decades. The European Community for Coal and Steel (ECCS) assumes a plateau phase and recommends the entry of 25 years old for calculation of reference values in this age range. The question arises if the commonly use...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-94-007-4546-9_18

    authors: Marek E,Volke J,Smith HJ,Serbetci B,Kalhoff H,Kotschy-Lang N,Merget R,Marek W

    更新日期:2013-01-01 00:00:00

  • Mini-Mental State Examination: Greek Normative Data Stratified by Age and Education in a Large Sample of 925 Community-Dwelling Healthy Participants.

    abstract:BACKGROUND:Cognitive screening measures are widely administered in everyday clinical practice in different geriatric settings. Despite the presence of several extended-like screening tests, Mini-Mental State Examination (MMSE) continues to be largely used not only by neuropsychologists, neurologists, and psychiatrists ...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-3-030-32637-1_9

    authors: Mougias A,Christidi F,Kaldi M,Kerossi MI,Athanasouli P,Politis A

    更新日期:2020-01-01 00:00:00

  • Stimulation of NF-kappa B activation and gene expression by platelet-activating factor.

    abstract::PAF stimulation of NF-kappa B activation and transcription of immediate-early genes have been investigated in peripheral blood mononuclear cells and in transfected Chinese hamster ovary cells expressing the cloned PAF receptor. These studies identified a G protein-coupled pathway for PAF induction of gene expression a...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-1-4899-0179-8_24

    authors: Ye RD,Kravchenko VV,Pan Z,Feng L

    更新日期:1996-01-01 00:00:00

  • Investigation of frontal cortex, motor cortex and systemic haemodynamic changes during anagram solving.

    abstract::We have previously reported changes in the concentrations of oxy-(delta[HbO2]) deoxy- (delta[HHb]) and total haemoglobin (delta[HbT] = delta[HbO2] + delta[HHb]) measured using near infrared spectroscopy (NIRS) over the frontal cortex (FC) during an anagram solving task. These changes were associated with a significant...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章

    doi:10.1007/978-0-387-74911-2_3

    authors: Tachtsidis I,Leung TS,Tisdall MM,Devendra P,Smith M,Delpy DT,Elwell CE

    更新日期:2008-01-01 00:00:00

  • Usher syndrome protein network functions in the retina and their relation to other retinal ciliopathies.

    abstract::The human Usher syndrome (USH) is the most frequent cause of combined hereditary deaf-blindness. USH is genetically and clinically heterogeneous: 15 chromosomal loci assigned to 3 clinical types, USH1-3. All USH1 and 2 proteins are organized into protein networks by the scaffold proteins harmonin (USH1C), whirlin (USH...

    journal_title:Advances in experimental medicine and biology

    pub_type: 杂志文章,评审

    doi:10.1007/978-1-4614-3209-8_67

    authors: Sorusch N,Wunderlich K,Bauss K,Nagel-Wolfrum K,Wolfrum U

    更新日期:2014-01-01 00:00:00