regulation of pulmonary blood flow—hypoxic vasoconstriction

... growth of both patients Patient received emergent cesarean section at 24 weeks of gestation because of sudden premature rupture of the membrane Therefore the birth weight 263 of the child of patient ... network of vessels No difference between the patients could be detected for the blood flow distribution Are these networks of new vessels sufficient for the maintenance of pregnancy? A decrease of blood ... with a diagnosis of threatened abortion at 17 weeks of gestation In spite of bed rest, disinfection therapy, and the administration of ritodrine, she suffered from pPROM at 23 weeks of gestation...

Ngày tải lên: 25/10/2012, 11:48

... course of CBT according to time of day Shown is a double plot of the group (n = 11) mean levels (+/- SEM) of CBT (blue diamonds) fit with a 24-hour cosine curve (purple squares) Time of day is ... z-transformed values revealed that the amplitudes of the two parameters were similar The amplitude of CBFV yielded a z score of 4.25 and CBT yielded a z score of 3.06 Blood pressure recordings and systemic ... Curve fit to Mean Cerebral Blood Flow Velocity (cm/sec) Time course of CBFV according to time of day Shown is a double plot of the group (n = 11) mean levels (+/- SEM) of CBFV (blue diamonds) fit...

Ngày tải lên: 10/08/2014, 09:20

... nature of this regulation has prevented elucidation of the underlying mechanisms of circadian changes in circulating blood cells [2] The present study found that a homozygous mutation of the ... circadian regulation of both blood CS levels and peripheral circulating blood cells, but that intact CLOCK is not essential to generate the rhythm Further elucidation of the functions of circadian ... circulating redblood cells CircadianClock mutant mice Circadian variations in peripheral circulating redblood cells (RBC) in Clock mutant mice (A) Number of RBC and (B) blood levels of hemoglobin...

Ngày tải lên: 10/08/2014, 09:20

... by both the Joint Research Committee of King's College School of Medicine & Dentistry and the Central Research Committee of the University of London Page of 10 (page number not for citation purposes) ... occlusion of the portal vein for the insertion of the mesocaval shunt and data from these preparations have therefore not been included Group The effect of intra-portal ATP Livers from another group of ... mesocaval shunt to divert blood to the systemic circulation during portal venous occlusion to prevent the fall in systemic blood pressure due to mesenteric pooling of portal blood [22] This model...

Ngày tải lên: 13/08/2014, 13:20

... Page | I Table of Contents Table of Contents II List of Figures V List of Tables VIII INTRODUCTION 1.1 The Importance of Myocardial ... with an incidence of approximately 188.1 per 100,000 children younger than four years of age, and a male-tofemale ratio of 1.5:1 (Kato 2010) KD is associated with the development of coronary artery ... started with a bolus of midazolam (0.1mg/kg) and of propofol (1mg/kg) During the MR scan, propofol was infused with a dose of 3-5mg/kg/h Adenosine and propofol were applied by using the MRI infusion...

Ngày tải lên: 20/05/2016, 20:50

... and Use of Laboratory Animals of the US National Institutes of Health, and were approved by the Committee on the Care and Use of Animals in Research of the Brussels Free University School of Medicine, ... PJ: Analysis of responses to bradykinin in the pulmonary vascular bed of the cat Am J Physiol 1994, 266:H2256-H2267 Waite MA: Measurement of concentrations of angiotensin I in human blood by radioimmunoassay ... measurement Femoral and pulmonary artery catheters were inserted for measurements of systemic and pulmonary vascular pressures, and Q, and for sampling of arterial and mixed venous blood A balloon catheter...

Ngày tải lên: 12/08/2014, 20:20

... “Endogenous circadian rhythm in an index of cardiac vulnerability independent of changes in behavior,” Proceedings of the National Academy of Sciences of the United States of America, vol 101, no 52, pp ... behavior of cerebral autoregulation,” Neurosurgery, vol 27, no 3, pp 362–368, 1990 C A Giller and D G Iacopino, “Use of middle cerebral velocity and blood pressure for the analysis of cerebral autoregulation ... modes of BP and BFV signals, to allow the selections of BP and BFV components, and to calculate Men-Tzung Lo et al the MMPF autoregulation index (see Figure 4) In previous version of the MMPF software,...

Ngày tải lên: 21/06/2014, 22:20

... Background Acute alveolar hypoxia causes pulmonary vasoconstriction [1] This hypoxic pulmonary vasoconstriction (HPV) directs blood flow towards well ventilated areas of the lung, and, hence, optimizes ... relative decrease or increase of this area Immunohistochemistry of PCLS For examination of the morphology of pulmonary vessels, 200 μm thick PCLS were cut from the left lobe of animals as described ... D F G Br E G’ Figure Distribution of α SMA-immunoreactivity in pulmonary arteries Distribution of α SMA-immunoreactivity in pulmonary arteries (A) Course of a pulmonary artery from the bronchus...

Ngày tải lên: 12/08/2014, 16:20

... pharmacological antagonism of A1R holds promise for treatment of CAD Michael S Sturek, PhD, Chair vi TABLE OF CONTENTS LIST OF TABLES xiv LIST OF FIGURES xv LIST OF ABBREVIATIONS ... and upregulation of A1R expression and A1R-ERK1/2 activation in an in vitro organ culture model of CAD Intracoronary stent deployment followed by different durations of recovery showed A1R upregulation ... restenosis, and regulation of coronary blood flow (CBF) We utilized the Ossabaw swine model of metabolic syndrome (MetS) to test the hypothesis that A1R activation contributes to development of CAD,...

Ngày tải lên: 24/08/2014, 13:30

... growth, remodeling and repair of bone require delivery of nutrients and oxygen through blood flow to bone tissue [21] Interruption of normal bone and soft tissue blood flow has been shown to be ... a part of the leg or arm under examination is in a form of a cylinder The cylinder is composed of two compartments: the bony compartment and the soft tissue compartment We define the blood volumes ... volumes (units are ml blood) within each compartment: υB – blood volume within bone compartment (including bone marrow) υs – blood volume within soft tissue compartment υL – blood volume within...

Ngày tải lên: 20/06/2014, 01:20

... culture-specific idioms of distress [5] To our knowledge, no study has examined whether possessive states can be related to indices of cerebral blood flow This paper presents a case study of an Omani man ... history of a recent change in personality and impairment of sensory perception The patient complained of abnormal auditory experiences when alone He also complained that the appearance of his ... scores were in the clinically abnormal range, with a total score of less than 19 Blood tests revealed normal complete blood count, blood biochemistry, thyroid functions and lipid levels Brain perfusion...

Ngày tải lên: 11/08/2014, 14:21

... profiling of disease progression in a well characterized animal model of pulmonary fibrosis and produced a number of highly involved genes in the disease pathogenesis Among them, the role of ... determine the expression profiles of ING4, also known as inhibitor of HIF-1a, in different forms of pulmonary fibrosis, including the experimental model and two types of idiopathic fibrotic lung ... expression in the BLM model of pulmonary fibrosis following disease progression As angiogenesis[15,18,19] and apoptosis[20,21] represent two of the major pathogenetic hallmarks of pulmonary fibrosis and...

Ngày tải lên: 12/08/2014, 14:20

... purity of the cell preparation This method typically yields a cell suspension containing 70–100% of monocytes with a contamination range between 0–30% of lymphocytes Purity of 88%– 100% of monocytes ... Belmonte KE: Regulation of TNF-α and IFN-γ induced CXCL10 expression: participation of the airway smooth muscle in the pulmonary inflammatory response in chronic obstructive pulmonary ... the absence of IL-12 mediated induction of endogenous IFNγ secretion when compared with A549/PBMC co-cultures (See also Table 1) % inhibition of IP-10 secretion in co-cultures Effects of IFN-γ antibody...

Ngày tải lên: 12/08/2014, 15:21

... minor changes of bronchial blood flow may not affect exhaled breath temperature Elevated levels of exhaled NO in asthma [6,7] are likely to be due to the activation of the inducible form of NO synthase ... Time (ms) Figure for Method the measurement of bronchial blood flow (Qaw) Method for the measurement of bronchial blood flow (Qaw) Subjects inhale 60% of their vital capacity from a reservoir containing ... to the bronchial blood flow Qaw was expressed as µl/ml/min representing the volume of blood per volume of dead space per time Previous studies have used dimethyl ether instead of acetylene for...

Ngày tải lên: 12/08/2014, 18:21

... and a PEEP of mbar for hours (FiO2 of 1.0; tidal volume of 12 ml/kg; inspiratory time of (Tinsp) 50% of the respiratory cycle; RR was set to achieve normocapnia) A continuous infusion of epinephrine ... be due to the absence of severe effects of the increased PT upon systemic hemodynamics and due to the fact that blood flow autoregulation of organs was still intact because of only one organ failure ... severe changes of systemic hemodynamics in lung-injured pigs and the assumption that blood flow autoregulation of organs was intact Changes of macrohemodynamics were dependent on the transpulmonary...

Ngày tải lên: 12/08/2014, 23:24

... and a PEEP of mbar for hours (FiO2 of 1.0; tidal volume of 12 ml/kg; inspiratory time of (Tinsp) 50% of the respiratory cycle; RR was set to achieve normocapnia) A continuous infusion of epinephrine ... be due to the absence of severe effects of the increased PT upon systemic hemodynamics and due to the fact that blood flow autoregulation of organs was still intact because of only one organ failure ... severe changes of systemic hemodynamics in lung-injured pigs and the assumption that blood flow autoregulation of organs was intact Changes of macrohemodynamics were dependent on the transpulmonary...

Ngày tải lên: 12/08/2014, 23:24

... inflammatory reaction [3] Because of the involvement of impaired hepatosplanchnic perfusion in the pathogenesis of sepsis, maintenance of hepatosplanchnic perfusion is a focus of experimental and clinical ... and heart rate Page of (page number not for citation purposes) In one half of the animals of each group, LDF was performed The other half of the animals underwent examination of leucocyte adherence ... Page of (page number not for citation purposes) of the laser penetration depth of about 1–2 mm, IMBF reflects the blood flow in the whole gut wall In contrast, FCD reflects only the perfusion of...

Ngày tải lên: 13/08/2014, 02:24

... almost 50% of the causes of death in patients with advanced vasodilatory shock [5] Considering the heart as the obviously most vulnerable link of the cardiovascular chain, it must be one of our goals ... effects on the heart itself (exponential elevation of oxygen demand due to increases in heart rate or triggering of tachyarrhythmias, induction of myocardial stunning at high dosages [12]) Recent ... GM, Factor P: Role of vasopressin in the management of septic shock Intensive Care Med 2004, 30:1276-1291 Holmes CL, Walley KR, Chittock DR, Lehman T, Russell JA: The effects of vasopressin on...

Ngày tải lên: 13/08/2014, 03:20

... function of the length lk of the vessel k and the properties of blood, Qκ is the mass flow rate of blood and Rκ is the radius of the vessel k The parameters a and b are only function of the fluid ... Behavior of Blood In PhD Thesis University of Pittsburgh, Pittsburgh, PA; 1996 Sequeira A, Janela J: An Overview of Some Mathematical Models of Blood Rheology In A Portrait of State -of- the-Art ... sort of maintenance cost of the blood volume In other words, the metabolic rate of energy required to maintain the volume of blood The cost function can be written as: The second derivative of...

Ngày tải lên: 13/08/2014, 16:21

Ngày tải lên: 13/11/2014, 10:12