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Journal articles on the topic 'Mesenteric circulation'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Rosenblum, Jordan D., Catherine M. Boyle, and Lewis B. Schwartz. "THE MESENTERIC CIRCULATION." Surgical Clinics of North America 77, no. 2 (1997): 289–306. http://dx.doi.org/10.1016/s0039-6109(05)70549-1.

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2

Inoue, Y., T. Iwai, and M. Endo. "Determining Variations in Colonic Circulation during Aortic Surgery." Cardiovascular Surgery 5, no. 6 (1997): 626–33. http://dx.doi.org/10.1177/096721099700500613.

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The aim of this study was to compare transanal Doppler examination, intraoperative angiography via the inferior mesenteric artery, and the inferior mesenteric artery stump pressure measurement during abdominal aortic surgery to assess the collateral circulation to the inferior mesenteric artery bed. Transanal Doppler examination revealed that the collateral circulation depended on the superior mesenteric artery in 25 patients (superior mesenteric artery-dominant group), the inferior mesenteric artery in two patients (inferior mesenteric artery-dominant group), and the internal iliac artery in

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3

TAKENAGA, Makoto, and Hiromu KAWASAKI. "Neuronal control of mesenteric circulation." Folia Pharmacologica Japonica 113, no. 4 (1999): 249–59. http://dx.doi.org/10.1254/fpj.113.249.

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4

Timerbulatov, V. M., V. G. Sakhautdinov, Sh V. Timerbulatov, R. A. Smyr, and A. M. Sargsyan. "Acute disorders of mesenteric circulation." Endoskopicheskaya khirurgiya 22, no. 3 (2016): 44. http://dx.doi.org/10.17116/endoskop201622344-49.

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5

Koster, Matthew J., and Kenneth J. Warrington. "Vasculitis of the mesenteric circulation." Best Practice & Research Clinical Gastroenterology 31, no. 1 (2017): 85–96. http://dx.doi.org/10.1016/j.bpg.2016.12.003.

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6

Shah, Vijay, Reiner Wiest, Guillermo Garcia-Cardena, Greg Cadelina, Roberto J. Groszmann, and William C. Sessa. "Hsp90 regulation of endothelial nitric oxide synthase contributes to vascular control in portal hypertension." American Journal of Physiology-Gastrointestinal and Liver Physiology 277, no. 2 (1999): G463—G468. http://dx.doi.org/10.1152/ajpgi.1999.277.2.g463.

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The molecular chaperone, heat shock protein 90 (Hsp90), acts as an intermediate in the signaling cascades leading to activation of endothelial nitric oxide synthase (eNOS). In this study, we examine the participation of this pathway in nitric oxide (NO)-dependent vasodilation in the rat mesentery in vitro. In normal animals, immunoprecipitation of eNOS from intact mesentery coimmunoprecipitates Hsp90 and, additionally, both eNOS and Hsp90 colocalize to the endothelial lining of mesenteric vessels. In the perfused mesenteric vasculature of normal animals, geldanamycin (GA), a specific inhibitor

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7

Biyik, Eslem Yaren. "Investigation of the Clinical Significance of the Arc of Riolan: A Review." Dynamic Medical Theories 1, no. 1 (2025): 16–19. https://doi.org/10.63594/dmte.2025.0004.

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All the blood of the small intestine comes from the truncus coeliacus and arteria (a.) mesenterica superior. Vascular anatomy may differ between people. Arc of Riolan, first described by Jean Riolan (1580-1657), a French anatomist, is an anastomotic vascular structure between the a. colica media branch of the a. mesenterica superior and the a. colica sinistra branch of the a. mesenterica inferior. It mainly provides collateral perfusion and blood supply after a. mesenterica superior or a. mesenterica inferior occlusion and atherosclerotic stenosis. In the event of occlusion of both the a. mese

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8

Plonka, Andrzej J., Tadeusz Tolloczko, Marek Lipski, Sylwia Malanowska, Martin H. Adelman, and James S. Williams. "Atherosclerotic Narrowings of the Mesenteric Circulation." Vascular Surgery 23, no. 3 (1989): 191–200. http://dx.doi.org/10.1177/153857448902300306.

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9

Horton, Karen M., and Elliot K. Fishman. "CT Angiography of the Mesenteric Circulation." Radiologic Clinics of North America 48, no. 2 (2010): 331–45. http://dx.doi.org/10.1016/j.rcl.2010.02.004.

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10

Harris, Michael T., and Blair S. Lewis. "Systemic Diseases Affecting the Mesenteric Circulation." Surgical Clinics of North America 72, no. 1 (1992): 245–59. http://dx.doi.org/10.1016/s0039-6109(16)45637-9.

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11

Gomes, Otoni Moreira, Geraldo Brasileiro Filho, Luiz Alberto Bomjardim Porto, Pedro Henrique de Lima Prata, and Rafael de Mattos Paixão. "Ischemia-reperfusion histopathology alterations of the rabbit intestinal wall with and without exclusion of the collateral mesenteric circulation supply." Acta Cirurgica Brasileira 25, no. 4 (2010): 318–21. http://dx.doi.org/10.1590/s0102-86502010000400003.

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PURPOSE: To evaluate the histopathology alterations of the intestinal mucosa of rabbits submitted to different times of mesenteric artery ischemia and reperfusion with and without celiac artery collateral circulation supply. METHODS: Two groups of eight male New Zealand white rabbits (weight 2.2-3.5 kg) were used in this study. In the Group 1 animals, the proximal mesenteric artery was occluded for 60 min with an atraumatic vascular clamp, followed by reperfusion for 60 min. In the Group 2 animals the small bowel and mesentery were cut 30cm and 60cm far from the gastroduodenal pyloric transiti

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12

Reho, John J., Xiaoxu Zheng, James E. Benjamin, and Steven A. Fisher. "Neural programming of mesenteric and renal arteries." American Journal of Physiology-Heart and Circulatory Physiology 307, no. 4 (2014): H563—H573. http://dx.doi.org/10.1152/ajpheart.00250.2014.

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There is evidence for developmental origins of vascular dysfunction yet little understanding of maturation of vascular smooth muscle (VSM) of regional circulations. We measured maturational changes in expression of myosin phosphatase (MP) and the broader VSM gene program in relation to mesenteric small resistance artery (SRA) function. We then tested the role of the sympathetic nervous system (SNS) in programming of SRAs and used genetically engineered mice to define the role of MP isoforms in the functional maturation of the mesenteric circulation. Maturation of rat mesenteric SRAs as measure

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13

Morales-Loredo, Humberto, Adelaeda Barrera, Joshua M. Garcia, et al. "Hydrogen sulfide regulation of renal and mesenteric blood flow." American Journal of Physiology-Heart and Circulatory Physiology 317, no. 5 (2019): H1157—H1165. http://dx.doi.org/10.1152/ajpheart.00303.2019.

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Hydrogen sulfide (H2S) dilates isolated arteries, and knockout of the H2S-synthesizing enzyme cystathionine γ-lyase (CSE) increases blood pressure. However, the contributions of endogenously produced H2S to blood flow regulation in specific vascular beds are unknown. Published studies in isolated arteries show that CSE production of H2S influences vascular tone more in small mesenteric arteries than in renal arteries or the aorta. Therefore, the goal of this study was to evaluate H2S regulation of blood pressure, vascular resistance, and regional blood flows using chronically instrumented rats

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14

Abu-Amarah, Isam, та William A. Cupples. "Baroreceptors, α1-adrenergic receptors, and regulation of mesenteric blood flow". Canadian Journal of Physiology and Pharmacology 78, № 1 (1999): 54–57. http://dx.doi.org/10.1139/y99-118.

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In the mesenteric circulation of the rat a myogenic autoregulatory system operates at 0.1-0.15 Hz. Negative admittance phase in the region above 0.2 Hz suggested operation of an arterial baroreflex. The present study was designed to test this interpretation and to identify the neurotransmitter involved. In rats anesthetized with isoflurane, blood pressure and mesenteric blood flow (transit time ultrasound) were measured with central mechanisms intact, after sinoaortic denervation, and after denervation of the mesenteric bed. Sinoaortic denervation abrogated the negative phase in the band from

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15

Iliopoulos, John I., George E. Pierce, Arlo S. Hermreck, Chris C. Haller, and James H. Thomas. "Hemodynamics of the inferior mesenteric arterial circulation." Journal of Vascular Surgery 11, no. 1 (1990): 120–26. http://dx.doi.org/10.1067/mva.1990.16696.

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16

Iliopoulos, John I., George E. Pierce, Arlo S. Hermreck, Chris C. Haller, and James H. Thomas. "Hemodynamics of the inferior mesenteric arterial circulation." Journal of Vascular Surgery 11, no. 1 (1990): 120–26. http://dx.doi.org/10.1016/0741-5214(90)90336-9.

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17

Blobner, Manfred, Ralph Bogdanski, Eberhard Kochs, Julia Henke, Alexander Findeis, and Sabine Jelen-Esselborn. "Effects of Intraabdominanlly Insufflated Carbon Dioxide and Elevated Intraabdominal Pressure on Splanchnic Circulation." Anesthesiology 89, no. 2 (1998): 475–82. http://dx.doi.org/10.1097/00000542-199808000-00025.

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Background Intraabdominally insufflated carbon dioxide (CO2) during laparoscopy may have a specific effect on splanchnic circulation that may be unrelated to the effects of increased intraabdominal pressure alone. Therefore, the influences of insufflation with CO2 versus air on splanchnic circulation were compared. Methods Pigs were chronically instrumented for continuous recording of mesenteric artery, portal venous, inferior vena cava, and pulmonary arterial blood flow and portal venous pressure. After induction of anesthesia, CO2 or air was insufflated in 14 and 10 pigs, respectively. With

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18

Fadel, Michael G., and Brian Andrews. "Retrograde open superior mesenteric artery stenting: a novel approach to managing occluded ilio-superior mesenteric artery grafts." BMJ Case Reports 12, no. 12 (2019): e233500. http://dx.doi.org/10.1136/bcr-2019-233500.

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Acute mesenteric ischaemia (AMI) can be treated either by open bypass grafting or occasionally by antegrade endovascular stenting. We present a patient with symptoms of AMI, in the early postoperative period, following thrombosis of an iliac to superior mesenteric bypass to treat chronic mesenteric ischaemia. A hybrid technique combining open surgery with a retrograde endovascular approach was performed. This allowed for direct visualisation of the bowel and immediate revascularisation of the mesenteric circulation.

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19

Janssen, B. J., H. van Essen, H. A. Struyker Boudier, and J. F. Smits. "Hemodynamic effects of activation of renal and mesenteric sensory nerves in rats." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 257, no. 1 (1989): R29—R36. http://dx.doi.org/10.1152/ajpregu.1989.257.1.r29.

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Afferent nerves from the kidney and mesentery reflexly influence the cardiovascular system when activated. To examine the specificity of these reflexes, comparisons were made of the regional hemodynamic responses elicited by intra-arterial infusion of various agents into the renal (ir) and mesenteric (im) circulation. Experiments were performed in conscious rats, chronically instrumented with Doppler flow probes. Local ir as well as im infusions of bradykinin caused a hemodynamic reflex pattern characterized by a dose-dependent increase in arterial pressure, heart rate, and resistance in the r

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20

Oynotkinova, O. Sh, A. V. Esipov, M. D. Pacenko, D. A. Mironenko, and A. V. Tyschuk. "FROM THE HISTORY OF ACUTE MESENTERIC OCCLUSION (THE EPOCH OF NEW TIME). Part I." Russian Archives of Internal Medicine, no. 6 (December 28, 2015): 37–41. http://dx.doi.org/10.20514/2226-6704-2015-0-6-37-41.

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Acute mesenteric occlusions and acute bowel infarction were described in the middle of the nineteenth century. In spite of the achievements of modern medicine acute mesenteric ischemia is still one of the most dangerous pathologies in emergency surgery. This survey covers the historical periods of research of certain aspects of acute infarction of mesenteric circulation, which shaped our modern perception of this disease.

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21

Suvannapura, A., and N. R. Levens. "Local control of mesenteric blood flow by the renin-angiotensin system." American Journal of Physiology-Gastrointestinal and Liver Physiology 255, no. 3 (1988): G267—G274. http://dx.doi.org/10.1152/ajpgi.1988.255.3.g267.

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The purpose of this study is to determine whether locally acting angiotensin II (ANG II) plays a direct role in the control of mesenteric blood flow after volume depletion in the anesthetized dog. Infusion of the ANG II receptor antagonist saralasin into the mesenteric artery at doses between 0.05 and 0.1 microgram.kg-1.min-1 attenuated the reduction in renal blood flow produced by intrarenal injection of ANG II. In contrast, infusion of saralasin at 0.01 microgram.kg-1.min-1 did not affect the change in renal blood flow produced by ANG II, indicating that at this dosage the antagonist did not

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22

Mangiapane, M. L., and M. J. Brody. "Mechanisms of hemodynamic responses to electrical stimulation of subfornical organ." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 250, no. 6 (1986): R1117—R1122. http://dx.doi.org/10.1152/ajpregu.1986.250.6.r1117.

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The rat subfornical organ (SFO) is involved in the pressor response to circulating angiotensin II, and recent evidence indicates that SFO electrical stimulation also produces a pressor response. In the present experiments we examined the hemodynamic, neural, and humoral mechanisms that underlie the pressor response to electrical stimulation of the SFO. Rats were anesthetized with urethan and instrumented with femoral arterial catheters and with pulsed Doppler flow probes on the superior mesenteric and renal arteries and on the abdominal aorta. Constant-current stimulation, delivered to the SFO

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23

Quick, Christopher M., John C. Criscione, Akhilesh Kotiya, et al. "Functional adaptation of bovine mesenteric lymphatic vessels to mesenteric venous hypertension." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 306, no. 12 (2014): R901—R907. http://dx.doi.org/10.1152/ajpregu.00185.2013.

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Lymph flow is the primary mechanism for returning interstitial fluid to the blood circulation. Currently, the adaptive response of lymphatic vessels to mesenteric venous hypertension is not known. This study sought to determine the functional responses of postnodal mesenteric lymphatic vessels. We surgically occluded bovine mesenteric veins to create mesenteric venous hypertension to elevate mesenteric lymph flow. Three days after surgery, postnodal mesenteric lymphatic vessels from mesenteric venous hypertension (MVH; n = 7) and sham surgery (Sham; n = 6) group animals were evaluated and comp

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24

Crass, M. F., C. L. Jayaseelan, and T. C. Darter. "Effects of parathyroid hormone on blood flow in different regional circulations." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 253, no. 4 (1987): R634—R639. http://dx.doi.org/10.1152/ajpregu.1987.253.4.r634.

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Parathyroid hormone and, in particular, its 1-34 aminoterminal fragment, PTH-(1-34), are potent vasodilators of the coronary circulation. In addition the hormone exerts a powerful hypotensive effect in a variety of animals, suggesting that the polypeptide hormone is vasoactive in peripheral regional circulations as well. The purpose of this study was to determine the regional circulations that were responsive and the relative sensitivity of each to the vasoactive properties of the hormone fragment. An anesthetized instrumented open-chest and/or open-abdomen dog model was used. Blood flow was c

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25

Romanko, Olga P., and David W. Stepp. "Reduced constrictor reactivity balances impaired vasodilation in the mesenteric circulation of the obese Zucker rat." American Journal of Physiology-Heart and Circulatory Physiology 289, no. 5 (2005): H2097—H2102. http://dx.doi.org/10.1152/ajpheart.00213.2005.

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Obesity causes whole body insulin resistance and impaired vasodilation to nitric oxide (NO). Because NO is a major contributor to the regulation of mesenteric blood flow, the mesenteric circulation of obese animals is faced with reduced capacity to increase flow and increased demand for flow associated with elevated consumption of food. This study hypothesized that insulin resistance impairs NO-mediated dilation but that constrictor reactivity would be reduced to compensate in obese animals. We further hypothesized that elevated superoxide levels caused impaired responses to NO in insulin resi

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Nishida, Osamu, Fuminori Moriyasu, Takefumi Nakamura, et al. "Relationship between splenic and superior mesenteric venous circulation." Gastroenterology 98, no. 3 (1990): 721–25. http://dx.doi.org/10.1016/0016-5085(90)90294-b.

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27

Tasleem, Younas, Syed, and Mohuiddin. "Endovascular repair of common celiomesenteric trunk stenosis." Vasa 39, no. 4 (2010): 341–43. http://dx.doi.org/10.1024/0301-1526/a000059.

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A common celiomesenteric trunk (CMT) is one of the several anatomic variations in the mesenteric circulation and occurs when the celiac and superior mesenteric arteries originate from a single common trunk. Because of its rarity, few lesions of the CMT have been reported. We herein present a case of atherosclerotic stenosis of the CMT of an 81-year-old female who presented with symptoms of mesenteric angina. To our knowledge, this represents the first reported case of endovascular treatment of CMT stenosis.

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Pereira, A. H., J. Cutin, and E. Eggers. "Inferior Mesenteric Artery Back Pressure and Collateral Circulation to the Distal Colon." Cardiovascular Surgery 1, no. 5 (1993): 536–40. http://dx.doi.org/10.1177/096721099300100513.

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The contribution of the hypogastric and superior mesenteric arteries to inferior mesenteric artery collateral (back) pressure (r-IMA) was measured in eight patients who were free from arterial disease and were operated on for small sigmoid carcinoma. Peak and mean r-IMAs were measured after clamping both common iliac arteries and the middle colic artery together with the marginal artery of Drummond. Measurements were repeated after the injection of 50 mg papaverine into the inferior mesenteric artery. For comparison the r-IMA was normalized against the radial artery pressure to create the r-IM

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Klein, Andrea, Lisa Bennett, Cindy Ha, and Melissa Kirkwood. "Surgical Intervention for Chronic Mesenteric Ischemia." Digestive Disease Interventions 02, no. 03 (2018): 223–30. http://dx.doi.org/10.1055/s-0038-1668539.

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AbstractSymptomatic chronic mesenteric ischemia (CMI) is a relatively rare condition, yet there are significant clinical consequences for those affected by the disease. CMI not only reduces quality of life but also increases an individual's risk for life-threatening acute mesenteric ischemia. Surgery is the definitive treatment to reduce the risk for this potentially fatal outcome, and both endovascular and open surgical strategies are currently utilized. This review article discusses the approach to making a diagnosis of CMI, as well as the surgical techniques used to revascularize the mesent

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Stoos, B. A., P. J. Metting, and S. L. Britton. "Autoregulatory capacity in renal and mesenteric vasculatures of mineralocorticoid hypertensive dogs." American Journal of Physiology-Heart and Circulatory Physiology 261, no. 4 (1991): H1205—H1213. http://dx.doi.org/10.1152/ajpheart.1991.261.4.h1205.

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Experiments were performed in seven conscious dogs to quantitate the renal and mesenteric autoregulatory capacity in deoxycorticosterone acetate (DOCA)-salt hypertensive dogs. Each dog was chronically instrumented for the measurement of aortic blood pressure and blood flows through the superior mesenteric and left renal arteries (Doppler measurements); a right nephrectomy was also performed. To induce hypertension, animals were administered 5 mg/kg DOCA each day and given 1% saline as a drinking solution. After arterial pressure had increased by 25% (8-14 days of DOCA), a large-bore catheter w

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31

Xu, Adrian QingYu, Ken Nakanote, Siddhi Hegde, et al. "Acute Mesenteric Ischemia: Anatomy, Imaging Techniques, and Pathophysiology." Contemporary Diagnostic Radiology 47, no. 2 (2024): 1–7. http://dx.doi.org/10.1097/01.cdr.0001004620.57397.33.

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Acute mesenteric ischemia is frequently a rapidly life-threatening condition in which the radiologist may play a crucial role in early diagnosis and thus improve patient outcome. The small and large bowels are supplied by the celiac trunk, superior mesenteric artery, and inferior mesenteric artery with watershed zones at the splenic flexure (Griffith's point) and rectosigmoid junction (Sudeck's point). Important bowel collateral circulation is the superior-inferior pancreaticoduodenal anastomosis, marginal artery of Drummond, and arc of Riolan. The most common cause of acute mesenteric ischemi

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32

Bivalacqua, Trinity J., Hunter C. Champion, Mrugeshkumar K. Shah, Bracken J. De Witt, Edward W. Inscho та Philip J. Kadowitz. "Comparative responses to α,β-methylene-ATP in cat pulmonary, mesenteric, and hindquarter vascular beds". Journal of Applied Physiology 93, № 4 (2002): 1287–95. http://dx.doi.org/10.1152/japplphysiol.00262.2002.

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Responses to the P2X-purinoceptor agonist α,β-methylene-ATP (α,β-MeATP) were investigated in the pulmonary, hindquarter, and mesenteric vascular beds in the cat. Under constant-flow conditions, injections of α,β-MeATP caused dose-related increases in perfusion pressure in the pulmonary and hindquarter beds and a biphasic response in the mesenteric circulation. In the pulmonary vascular bed, the order of potency was α,β-MeATP > U-46619 > angiotensin II, whereas, in the hindquarters, the order of potency was angiotensin II > U-46619 > α,β-MeATP. The order of potency was similar in th

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33

Alhassan, Noura, and Hongqun Liu. "Hyperdynamic mesenteric circulation in cirrhosis: humoral or neural mechanism?" Liver International 32, no. 8 (2012): 1191–93. http://dx.doi.org/10.1111/j.1478-3231.2012.02850.x.

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34

Kim, Heung Bae, Eliza J. Lee, Khashayar Vakili, et al. "Mesenteric Artery Growth Improves Circulation (MAGIC) in Midaortic Syndrome." Annals of Surgery 267, no. 6 (2018): e109-e111. http://dx.doi.org/10.1097/sla.0000000000002540.

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35

Khripun, A. I., S. N. Shurygin, A. B. Mironkov, and A. D. Pryamikov. "Venous acute disturbance of mesenteric circulation: diagnosis and treatment." Khirurgiya. Zhurnal im. N.I. Pirogova, no. 12 (2017): 95. http://dx.doi.org/10.17116/hirurgia20171295-102.

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36

Yuasa, H., T. Hiraiwa, K. Tanaka, T. Mizutani, I. Yada, and M. Kusagawa. "Aneurysm of the Inferior Mesenteric Artery." Cardiovascular Surgery 1, no. 2 (1993): 143–45. http://dx.doi.org/10.1177/096721099300100212.

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The case of a 48-year-old man with an aneurysm of the inferior mesenteric artery is described. This aneurysm was associated with extensive vascular disease characterized by multiple sites of stenosis and occlusion in addition to an upper abdominal aortic aneurysm. Repair of both aneurysms and reconstruction of the left renal artery and inferior mesenteric artery, which supplied all splanchnic circulation, were performed. The aetiology of the disease was thought to involve Takayasu's arteritis.

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Dart, Andrew J., Jack R. Snyder, Dolores Julian, and Dave M. Hinds. "Microvascular circulation of the small intestine in horses." American Journal of Veterinary Research 53, no. 6 (1992): 995–1000. http://dx.doi.org/10.2460/ajvr.1992.53.06.995.

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Summary The microvascular anatomic features of the small intestine was described by correlating results of microangiography, light microscopy, gross studies, and scanning electron microscopy of vascular replicas in 14 horses. After heparinization, the horses were euthanatized, a length of jejunum was transected, and blood was flushed free of the circulation, using isotonic NaCl solution. In six horses, the circulatory system was perfused with a modified radiopaque medium and evaluated radiographically. These sections were then evaluated by standard histologic methods. Sections from 8 horses we

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38

Ruseva, A. D., I. A. Solovev, M. D. Khanevich, et al. "Surgical treatment of a patient with acute mesenteric circulatory disorder and colon cancer complicated by acute intestinal obstruction." Bulletin of Pirogov National Medical & Surgical Center 19, no. 3 (2024): 162–64. http://dx.doi.org/10.25881/20728255_2024_19_3_166.

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A clinical case of colorectal cancer complicated by acute intestinal obstruction, combined with acute violation of mesenteric circulation, is presented. The patient was admitted to a multidisciplinary hospital in St. Petersburg in extremely serious condition. The examination revealed widespread peritonitis complicated by abdominal sepsis and septic shock. After the patient was brought out of critical condition, an operation was performed. The operation revealed cancer of the hepatic bend of the colon, complicated by acute intestinal obstruction and acute violation of mesenteric circulation. An

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39

Bouchard, Jean-François, Éric C. Dumont, and Daniel Lamontagne. "Modification of vasodilator response in streptozotocin-induced diabetic rat." Canadian Journal of Physiology and Pharmacology 77, no. 12 (1999): 980–85. http://dx.doi.org/10.1139/y99-106.

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Functional dilatory response in streptozotocin-induced diabetic rats was investigated using thoracic aortas, isolated hearts, and mesenteric beds. Dose-response curves to the PGI2 analogue iloprost on phenylephrine-preconstricted rings of diabetic rats and controls were comparable. In contrast, decreased vasodilation in diabetic rats was observed when dose-response curves to iloprost were performed in hearts and on phenylephrine-preconstricted mesenteric beds. Dose-response curves to forskolin, an adenylyl cyclase activator, performed with hearts and phenylephrine-preconstricted aortic rings a

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40

Alexis, Emir Noguera Echeverría, Giorgia Forfori Palomo Mathilda, Dalai García Nuñez Isa, et al. "Acute Mesenteric Ischemia: Basic concepts, Diagnosis, Treatment Options and Outcomes." INTERNATIONAL JOURNAL OF MEDICAL SCIENCE AND CLINICAL RESEARCH STUDIES 03, no. 11 (2023): 2603–8. https://doi.org/10.5281/zenodo.10300944.

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Acute mesenteric ischemia (AMI) is a group of diseases in which blood flow to the intestine is interrupted by occlusive or nonocclusive causes that include mesenteric arterial embolism, mesenteric arterial thrombosis, and mesenteric venous thrombosis. AMI risk factors include advanced age, Caucasian race, history of systemic arterial hypertension, arterial fibrillation, chronic kidney disease, and congestive heart failure. The clinical triad is characterized by the sudden onset of severe abdominal pain accompanied by gastrointestinal symptoms in the presence of an identified embolic source. Di

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Dart, Andrew J., Jack R. Snyder, and Faye A. Harmon. "Microvascular circulation of the descending colon in horses." American Journal of Veterinary Research 53, no. 6 (1992): 1001–6. http://dx.doi.org/10.2460/ajvr.1992.53.06.1001.

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Summary The microvascular circulation of the descending colon was studied in 5 adult horses, using microangiography and light microscopy combined with gross studies and scanning electron microscopy of vascular replicas. After heparinization, horses were euthanatized, and 3 segments of the descending colon and its mesentery containing 1 vascular arcade were removed from each horse. The fecal balls were gently massaged from the lumen, and the blood was flushed free of the circulation with isotonic NaCl. In 5 segments, the vascular system was injected with a modified radiopaque medium and evaluat

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Ito, K., T. Yukimura, T. Takenaga, K. Yamamoto, K. Kangawa, and H. Matsuo. "Small intestine as possible source of increased plasma cGMP after administration of alpha-hANP to dogs." American Journal of Physiology-Gastrointestinal and Liver Physiology 254, no. 6 (1988): G814—G818. http://dx.doi.org/10.1152/ajpgi.1988.254.6.g814.

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A synthetic alpha-human atrial natriuretic peptide (alpha-hANP) was infused into the renal artery of anesthetized dogs, and the urine flow, renal hemodynamics, and plasma guanosine 3',5'-cyclic monophosphate (cGMP) were determined. alpha-hANP led to a natriuresis accompanied by an increase in renal blood flow in the infused kidney but not in the contralateral kidney. The systemic blood pressure remained unchanged. The arterial plasma cGMP significantly increased after alpha-hANP administration. The plasma cGMP in the renal vein was significantly lower than that in the aorta throughout the expe

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Sukharukov, Alexander Sergeevich, Dmitry Vasilievich Narezkin, Alexander Alexandrovich Bezaltynnykh, Alexey V. Sergeev, and Daria Andreevna Avchinnikova. "Retrospective Study of Outpatient Treatment of Acute Mesenteric Circulatory Disorders." Journal of Experimental and Clinical Surgery 15, no. 1 (2022): 34–40. http://dx.doi.org/10.18499/2070-478x-2022-15-1-34-40.

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Introduction. Acute violation of mesenteric blood circulation is one of the most severe urgent diseases of the abdominal cavity. The number of patients, and the mortality rate resulted from this pathology, is steadily increasing every year. The number of patients has only increased during the pandemic of new coronavirus infection COVID-19.The aim of study was to develop options to prevent severe outcomes of this pathology at the pre-hospital stage identifying patients with high risk of developing mesenteric thrombosis.Materials and methods. The study was a retrospective analytical study that i

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Woods, Robyn L. "Vasoconstrictor actions of atrial natriuretic peptide in the splanchnic circulation of anesthetized dogs." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 275, no. 6 (1998): R1822—R1832. http://dx.doi.org/10.1152/ajpregu.1998.275.6.r1822.

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Intravenous atrial natriuretic peptide (ANP) usually results in splanchnic vasoconstriction in humans or experimental animals that is accompanied by falls in blood pressure and/or cardiac output. To determine direct in vivo effects in the present study, ANP was infused (12 ng ⋅ kg−1 ⋅ min−1) directly into the mesenteric (iMA) and hepatic (iHA) arterial beds of anesthetized dogs, thereby minimizing changes in blood pressure. Over the first 2 min of iMA infusion, rate of change in mesenteric vascular resistance was 19.6 ± 5.4 mmHg ⋅ l−1 ⋅ min−1/min, reaching a maximum increase in resistance of 2

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Sakamoto, Wakako, Tomohiko Masuno, Hiroyuki Yokota, and Toshihiro Takizawa. "Expression profiles and circulation dynamics of rat mesenteric lymph microRNAs." Molecular Medicine Reports 15, no. 4 (2017): 1989–96. http://dx.doi.org/10.3892/mmr.2017.6259.

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JACOB, L., S. BOUDAOUD, O. RABARY, et al. "ISOFLURANE AND NOT HALOTHANE VASODILATES MESENTERIC CIRCULATION SUPPLYING ESOPHAGEAL ILEOCOLOPLASTY." Anesthesiology 71, Supplement (1989): A96. http://dx.doi.org/10.1097/00000542-198909001-00096.

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Türkoğlu, Ahmet, Mesut Gül, Abdullah Oğuz, et al. "Mean Platelet Volume: Is It a Predictive Parameter in Diagnosis of Acute Mesenteric Ischemia?" International Surgery 100, no. 5 (2015): 962–65. http://dx.doi.org/10.9738/intsurg-d-14-00268.1.

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Our objective for this study was to discuss the usability of mean platelet volume, which is associated with numerous vascular pathologies, in the early diagnosis of acute mesenteric ischemia. Acute mesenteric ischemia is an uncommon, life-threatening clinical condition mostly seen in the elderly. Early diagnosis of acute mesenteric ischemia and correction of blood circulation before necrosis occurs are important factors affecting prognosis. A total of 95 patients who underwent emergency surgery for acute mesenteric ischemia and 90 healthy volunteers as control group were included in this study

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Braillon, A., and M. J. Brody. "Continuous monitoring of portal vein and hepatic artery hemodynamics in unrestrained rats." American Journal of Physiology-Gastrointestinal and Liver Physiology 255, no. 2 (1988): G194—G200. http://dx.doi.org/10.1152/ajpgi.1988.255.2.g194.

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Continuous measurement of portal vein and hepatic artery blood flows during physiological experimental conditions, even in large animals, poses difficult problems. We report the successful use of miniaturized flow probes and pulsed Doppler flowmetry for chronic monitoring of hepatic artery and portal vein flows in intact unrestrained rats and describe the probe construction and implantation. Proportionality between portal vein velocity and portal flow was made possible by a technique for stabilizing the diameter of the venous segment from which velocity is recorded. The accuracy of the method

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Joosse, Simon A., François-Régis Souche, Anna Babayan, et al. "Chromosomal Aberrations Associated with Sequential Steps of the Metastatic Cascade in Colorectal Cancer Patients." Clinical Chemistry 64, no. 10 (2018): 1505–12. http://dx.doi.org/10.1373/clinchem.2018.289819.

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Abstract BACKGROUND Genomic information can help to identify colorectal tumors with high and low metastatic potential, thereby improving prediction of benefit of local and/or systemic treatment. Here we investigated chromosomal aberrations in relation to the different stages of the metastatic cascade: dissemination of tumor cells into the mesenteric vein, metastatic outgrowth in the liver, intravasation of the peripheral blood circulation, and development of further distant metastasis. METHODS Peripheral and mesenteric blood from colorectal cancer patients (n = 72) were investigated for circul

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Suslina, E. S., M. V. Rostovtsev, N. V. Nudnov, E. V. Pronkina, and M. N. Orlov. "Clinical case of acute intestinal vascular insufficiency with chronic intoxication. Possibilities of CT." Medical Visualization, no. 3 (September 4, 2019): 77–81. http://dx.doi.org/10.24835/1607-0763-2019-3-77-81.

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Acute vascular pathology of the intestine is a collective concept that includes a number of conditions that develop due to insufficient supply of oxygen and nutrients to tissues. One of these conditions is an аcute mesenteric ischemia (AMIO). Diagnosis of AMIO reserves a lot of unresolved issues, in which CT angiography is the main method. Treatment of patients depends on the form of the course and stage of the disease. We present the case of a violation of the mesenteric blood circulation in a man against the background of poisoning by alcohol substitutes.

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