Academic literature on the topic 'Microcirculatory vessels'

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Journal articles on the topic "Microcirculatory vessels"

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Stegney, Zh. "Морфологічні особливості кровоносних судин тимуса новонароджених телят". Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 19, № 82 (2017): 12–15. http://dx.doi.org/10.15421/nvlvet8203.

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The blood vessels of thymus of newborn calves were studied by using a complex of histological methods and methods of injection of blood vessels. Calf thymus gland is an unpaired organ consisting of a pair of cervical, unpaired cervical and thoracic lobes. Radiating insertions (septa) extrude from the capsule, dividing organ on lobules. Stroma (6.53 ± 2.33%) consists of loose connective tissue. The base of the lobules is formed by a lymphoid tissue (epithelial with cells of the lymphoid series). The area of the parenchyma of the diurnal calves’ thymus is 80.57 ± 3.46%. The thymus lobes consist
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Di Dedda, Umberto, Alice Ascari, Angela Fantinato, Dario Fina, Ekaterina Baryshnikova, and Marco Ranucci. "Microcirculatory Alterations in Critically Ill Patients with COVID-19-Associated Acute Respiratory Distress Syndrome." Journal of Clinical Medicine 11, no. 4 (2022): 1032. http://dx.doi.org/10.3390/jcm11041032.

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Background: Presently, a number of specific observations have been performed on microcirculatory function in a coronavirus disease-19 (COVID-19) setting. We hypothesized that, in the critically ill, endothelial dysfunction secondary to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the subsequent inflammation and coagulopathy may lead to microcirculatory alterations, further exacerbated by the hypoxemic state. A dysfunctional microcirculation may represent the hidden motor underlying the development of COVID-19’s clinical manifestations. Methods: A single center, pr
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Alba-Alejandre, Irene, Stephan Hiedl, and Orsolya Genzel-Boroviczény. "Microcirculatory Changes in Term Newborns with Suspected Infection: An Observational Prospective Study." International Journal of Pediatrics 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/768784.

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Background. In adults severely disturbed microcirculatory flow can be observed by Orthogonal Polarized Spectral (OPS) imaging techniques during sepsis. Therefore we set out to assess for microcirculatory changes in term newborns with suspected early onset infection using OPS.Methods. OPS images were obtained prospectively from the vascular bed of the ear conch and upper arm of 47 newborns on their 1st, 2nd, and 3rd day of life. OPS sequences were analyzed semiquantitatively offline and blinded to clinical status of the infant. Flow in vessels was classified as continuous or noncontinuous flow
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Hnatjuk, Mykhailo, Serhii Nesteruk, Liudmyla Tatarchuk, and Nataliia Monastyrska. "Morphometric assessment of age-related structural changes in the vessels of the microcirculatory bed of the prostate gland under conditions of ethanol intoxication." Bulletin Of Medical And Biological Research 17, no. 3 (2023): 8–15. http://dx.doi.org/10.61751/bmbr.2706-6290.2023.3.8.

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Vessels of the microcirculatory bed ensure the full trophism of the body at the level of capillary-tissue relations and are the first to respond to various functional and pathological conditions of organs. At the same time, morphological changes in prostate microvasculature with age under conditions of prolonged ethanol poisoning have been understudied. The purpose of this study was to determine the age-related remodelling of the prostate vessels of the microcirculatory bed in case of prolonged alcohol intoxication. Injection, histological, morphometric, and statistical methods were used. The
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Petrov, S. B. "Quantitative characteristics of the microvasculature of cancer tumors." Kazan medical journal 66, no. 2 (1985): 159. http://dx.doi.org/10.17816/kazmj61213.

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Toth, A., M. E. Tischler, M. Pal, A. Koller, and P. C. Johnson. "A multipurpose instrument for quantitative intravital microscopy." Journal of Applied Physiology 73, no. 1 (1992): 296–306. http://dx.doi.org/10.1152/jappl.1992.73.1.296.

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An in vivo microscope system has been developed that can measure fluorescence emission and/or light absorption at up to five wavelengths in a tissue area of 18–30 microns diam while imaging adjacent microcirculatory vessels with a video system. The system also incorporates a computer-controlled stage and data acquisition system for rapid and repeated measurements from a number of tissue sites. The tissue area monitored for fluorescence or absorption can be defined further by a confocal arrangement of the microscope optics. Tests of the system for NADH fluorescence measurements show good agreem
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Kuznetsova, T. E., E. L. Ryzhkovskaya, and E. I. Kalinovskaya. "STRUCTURAL CHANGES IN THE MICROCIRCULATORY BED OF THE PANCREAS IN RATS WITH EXPERIMENTAL METABOLIC SYNDROME." Proceedings of the National Academy of Sciences of Belarus, Medical series 15, no. 3 (2018): 347–53. http://dx.doi.org/10.29235/1814-6023-2018-15-3-347-353.

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A complex histological, histochemical and electron microscopic study of the state of the microcirculatory bed of the pancreas and conjugate transformations in the parenchyma of the organ after modeling the metabolic syndrome using a diet high in fats and carbohydrates was carried out. Spasm of arterioles, the marginal state of leukocytes and the desquamation of endotheliocytes into the lumen of a vessel, the stasis of erythrocytes in capillaries were revealed. The endothelial cells of capillaries had signs of increased transport of substances through the vessel walls: pinocytosis, fenestration
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Chalkias, Athanasios, Nikolaos Papagiannakis, Georgios Mavrovounis, et al. "Sublingual microcirculatory alterations during the immediate and early postoperative period: A systematic review and meta-analysis." Clinical Hemorheology and Microcirculation 80, no. 3 (2022): 253–65. http://dx.doi.org/10.3233/ch-211214.

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BACKGROUND: The incidence of postoperative microcirculatory flow alterations and their effect on outcome have not been studied extensively. OBJECTIVE: This systematic review and meta-analysis were designed to investigate the presence of sublingual microcirculatory flow alterations during the immediate and early postoperative period and their correlation with complications and survival. METHODS: A systematic search of PubMed, Scopus, Embase, PubMed Central, and Google Scholar was conducted for relevant articles from January 2000 to March 2021. Eligibility criteria were randomized controlled and
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Abou-Arab, Osama, Christophe Beyls, Abdelilah Khalipha, et al. "Microvascular flow alterations in critically ill COVID-19 patients: A prospective study." PLOS ONE 16, no. 2 (2021): e0246636. http://dx.doi.org/10.1371/journal.pone.0246636.

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Background Data on microcirculatory pattern of COVID-19 critically ill patients are scarce. The objective was to compare sublingual microcirculation parameters of critically ill patients according to the severity of the disease. Methods The study is a single-center prospective study with critically ill COVID-19 patients admitted in ICU. Sublingual microcirculation was assessed by IDF microscopy within 48 hours of ICU admission. Microcirculatory flow index (MFI), proportion of perfused vessel (PPV), total vessel density (TVD), De Backer score (DBS), perfused vessel density (PVD) and heterogenei
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Artushenko, N. K., D. S. Rybalchenko, and O. N. Mironuk. "Gingiva microhemocircualtion of alveolar processes of maxilla in patients with apparently healthy maxillary antrum and associated with chronic odontogenic polypus maxillary sinusitis." Stomatology for All / International Dental review, no. 2020 2 (91) (June 2020): 4–11. http://dx.doi.org/10.35556/idr-2020-2(91)4-11.

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Conducted a clinical research of tissues in maxillofacial area of patients with maxillary sinusitis confirmed based on X-ray diagnostics and patients without it. Cone beam computed tomography of maxillary antrum and ultrasonic dopplerography of microcirculatory vessels of alveolar ridge mucosa on computer-operated ultrasonic system MM-D-K of SP Minimax, St. Petersburg, were used in the research. It is established that as a result of continuous chronic polypoid changes of upper layers of maxillary antrum mucosa and compression of stroma polypuses with microcirculatory vessels in them, compensat
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Books on the topic "Microcirculatory vessels"

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Groeneveld, A. B. J., and Alexandre Lima. Vasodilators in critical illness. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0035.

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Vasodilators are commonly used in the intensive care unit (ICU) to control arterial blood pressure, unload the left or the right heart, control pulmonary artery pressure, and improve microcirculatory blood flow. Vasodilator refers to drugs acting directly on the smooth muscles of peripheral vessel walls and drugs are usually classified based on their mechanism (acting directly or indirectly) or site of action (arterial or venous vasodilator). Drugs that have a predominant effect on resistance vessels are arterial dilators and drugs that primarily affect venous capacitance vessels are venous di
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Ince, Can, and Alexandre Lima. Monitoring the microcirculation in the ICU. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0142.

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The microcirculation is the key physiological compartment of the cardiovascular system where oxygen is delivered by convection and diffusion to respiring parenchymal cells to support cellular, and thereby organ, function. The microcirculation consists of microvessels less than 100 µmin diameter consisting of arterioles, capillaries, and venules. The smallest vessels (<6 µm) are the capillaries where most oxygen leaves the circulation by passive diffusion to cells. The critical role of the microcirculation has long been recognized, although it has recently been possible to image its function
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Book chapters on the topic "Microcirculatory vessels"

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Namgung, Bumseok, Leo Hwa Liang, and Sangho Kim. "Physiological Significance of Cell-Free Layer and Experimental Determination of its Width in Microcirculatory Vessels." In Visualization and Simulation of Complex Flows in Biomedical Engineering. Springer Netherlands, 2013. http://dx.doi.org/10.1007/978-94-007-7769-9_4.

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"Application of intravital microscopy for evaluation of cold microwave argon plasma action on vasomotion at the microcirculatory bed in vivo." In Book of Abstracts - RAD 2025 Conference. RAD Centre, Niš, Serbia, 2025. https://doi.org/10.21175/rad.abstr.book.2025.6.4.

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Recent reports have demonstrated that EMF has a positive effect on various stages of tissue healing and regeneration. The processes affected by EMF include, but are not limited to, cell migration and proliferation, growth factor expression, nitric oxide synthase activation, NO generation, and cytokine modulation. These effects have been found even when applying low frequencies (range: 30–300 kHz) and extremely low frequencies (range: 3–30 Hz). In this regard, a special emphasis in this project is on the applications of high-frequency electromagnetic fields from the microwave range, as they are
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Conference papers on the topic "Microcirculatory vessels"

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Alekperov, RT, ES Match, and NG Guseva. "AB0106 The morphological and functional changes of microcirculatory vessels in systemic sclerosis." In Annual European Congress of Rheumatology, Annals of the rheumatic diseases ARD July 2001. BMJ Publishing Group Ltd and European League Against Rheumatism, 2001. http://dx.doi.org/10.1136/annrheumdis-2001.254.

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Liu, A., R. Wijesurendra, J. Liu, et al. "10 A high index of microcirculatory resistance in non-obstructed vessels is associated with ischaemia and lv dysfunction." In British Cardiovascular Intervention Society, Young Investigator Award Shortlisted Presentations, Royal College of Physicians of London, November 30 2017. BMJ Publishing Group Ltd and British Cardiovascular Society, 2018. http://dx.doi.org/10.1136/heartjnl-2018-bcis.10.

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Demir, Sumeyra U., Nazanin Mirshahi, Kevin Ward, Roya Hakimzadeh, Rosalyn Hobson, and Kayvan Najarian. "Vessel Extraction of Microcirculatory Video Recordings Using Multi-thresholding Based Verification Algorithm." In 2010 International Conference on Biosciences. IEEE, 2010. http://dx.doi.org/10.1109/biosciencesworld.2010.9.

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Jonasson, Hanna, Joakim Henricson, Rolf B. Saager, and Daniel Wilhelms. "Microcirculatory response to lower body negative pressure and the association to large vessel function." In Photonics in Dermatology and Plastic Surgery 2023, edited by Bernard Choi and Haishan Zeng. SPIE, 2023. http://dx.doi.org/10.1117/12.2648028.

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