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Journal articles on the topic 'Aorta ring'

Author: Grafiati

Published: 14 March 2023

Last updated: 31 July 2025

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1

Stallone, J. N. "Role of endothelium in sexual dimorphism in vasopressin-induced contraction of rat aorta." American Journal of Physiology-Heart and Circulatory Physiology 265, no. 6 (1993): H2073—H2080. http://dx.doi.org/10.1152/ajpheart.1993.265.6.h2073.

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In rat thoracic aorta, contractile responses to arginine vasopressin (AVP) are twofold higher in females than in males. To determine the role of the endothelium in this phenomenon, the effects of endothelium removal and inhibition of nitric oxide (NO) synthase and cyclooxygenase were examined in thoracic aortas prepared from male and female Sprague-Dawley rats and mounted for isometric tension recording. Maximal contractile response to AVP was substantially higher in female (4,232 +/- 316 mg/mg ring dry wt) than in male aortas (1,365 +/- 239; P < 0.01). Removal of the endothelium markedly p

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2

Apostolakis, E. "Acute Postoperative Obstruction of the Ascending Aorta following Replacement with an Intraluminal Graft." Cardiovascular Surgery 3, no. 1 (1995): 87–89. http://dx.doi.org/10.1177/096721099500300120.

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A fourth case of displacement of one ring of an intraluminal graft is reported. This occurred in a woman who was operated on for acute dissection of the aorta. The displacement happened 8 h after surgery and produced acute obstruction of the ascending aorta. Restoration of the proximal ring of the graft into its correct position was successful.

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3

Ozer, Erdem Kamil, Miyase Gozde Gunduz, Ahmed El-Khouly, et al. "Synthesis of fused 1,4-dihydropyridines as potential calcium channel blockers." Turkish Journal of Biochemistry 43, no. 6 (2017): 578–86. http://dx.doi.org/10.1515/tjb-2016-0247.

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AbstractObjectiveThe aim of this study was to synthesize ten 1,4-dihydropyridine (DHP) derivatives in which substituted cyclohexane rings were fused to the DHP ring and to determine how different ester groups and the benzoyl substituent introduced in 4-phenyl ring affected their calcium channel blocking activity.MethodsA microwave-assisted one-pot method was applied for the synthesis of compound1–5according to a modified Hantzsch reaction. The benzoyl moiety was introduced in the 4-phenyl ring of these dihydropyridines by refluxing with benzoyl chloride in acetone in the presence of anhydrous

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4

Mauchley, David C., Julia Massey Stiegler, Luz A. Padilla, Zviadi Aburjania, Robet Dabal, and David Cleveland. "Repair of Rare Vascular Ring: Circumflex Aortic Arch with Associated Hypoplasia and Coarctation." World Journal for Pediatric and Congenital Heart Surgery 11, no. 2 (2019): 235–37. http://dx.doi.org/10.1177/2150135119828387.

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We describe a neonate with an unusual vascular ring formed by a right-sided aortic arch with associated coarctation and distal hypoplasia in the presence of an aberrant left subclavian artery. The descending aorta traveled behind the esophagus to descend on the left side of the spine. A left ductus arteriosus connected to the descending aorta completing the vascular ring, with notable esophageal compression. Surgical correction was accomplished through median sternotomy, resection of the hypoplastic circumflex arch, aortic arch advancement, and end-to-side anastomosis.

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5

Pockett, Charissa R., Reeni Soni, and Andrew S. Mackie. "Innominate vein vascular ring provides novel insight into systemic venous embryogenesis." Cardiology in the Young 22, no. 4 (2011): 469–71. http://dx.doi.org/10.1017/s1047951111001879.

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AbstractAnomalies of the innominate vein are uncommon in congenital cardiac disease. We report a case of duplicate innominate veins forming a vascular ring encircling the ascending aorta. We postulate that this vascular ring represents the failure of both a dorsal and ventral precardinal anastomosis to regress.

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6

Stallone, J. N., J. T. Crofton, and L. Share. "Sexual dimorphism in vasopressin-induced contraction of rat aorta." American Journal of Physiology-Heart and Circulatory Physiology 260, no. 2 (1991): H453—H458. http://dx.doi.org/10.1152/ajpheart.1991.260.2.h453.

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Previously, we reported that, in the rat, pressor responsiveness to vasopressin (VP) is higher in males than in females during most phases of the estrous cycle. To explore the role of the vasculature in this phenomenon, we examined vascular reactivity to VP in thoracic aortas of male rats and female rats during each phase of the estrous cycle. Aortic rings were prepared from age-matched male and female Sprague-Dawley rats and mounted for isometric tension recording. Maximal response of female aortas to VP (4,246 +/- 163 mg/mg ring dry wt) was more than twice (P less than 0.001) that of male ao

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7

Dydynski, Philip B., John S. Austin, Deborah Kozik, and Bahaaldin Alsoufi. "Utility of Pre- and Postoperative Computed Tomography Angiography for the Evaluation of a Complex Vascular Ring." World Journal for Pediatric and Congenital Heart Surgery 10, no. 5 (2019): 654–56. http://dx.doi.org/10.1177/2150135119867586.

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We present the case of a neonate born with an unusual complex vascular ring formed by a left-sided aortic arch that had retroesophageal course to join a right-sided descending aorta and a very large right-sided arterial ductus from the right pulmonary artery to the descending aorta. Associated finings included aortic arch hypoplasia, aberrant right subclavian artery, and aberrant origin of the left pulmonary artery from the aorta. We focus on the role of computed tomography angiography in the preoperative and postoperative assessment of this complex anomaly.

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8

Bryant, Roosevelt, William Wallen, Raheel Rizwan, and David L. Morales. "Modified Aortic Uncrossing Procedure: A Novel Approach for Norwood Palliation of Complex Univentricular Congenital Heart Disease With a Circumflex Aorta." World Journal for Pediatric and Congenital Heart Surgery 8, no. 4 (2017): 507–10. http://dx.doi.org/10.1177/2150135117712248.

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The circumflex aorta is a rare type of true vascular ring anomaly. It consists of a retroesophageal right aortic arch, a left-sided descending thoracic aorta, and a left-sided ligamentum arteriosum. The “aortic uncrossing procedure” described by Planché and Lacour-Gayet is the procedure of choice for managing this aortic anomaly in patients with a biventricular heart. The presence of a circumflex aorta in a patient with heterotaxy syndrome and univentricular congenital heart disease requiring Norwood palliation is highly unusual. We report such a case and describe our approach to its surgical

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9

Fulton, Clifford T., and John N. Stallone. "Sexual dimorphism in prostanoid-potentiated vascular contraction: roles of endothelium and ovarian steroids." American Journal of Physiology-Heart and Circulatory Physiology 283, no. 5 (2002): H2062—H2073. http://dx.doi.org/10.1152/ajpheart.00099.2002.

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The effects of constrictor prostanoid (CP) pathway inhibitors on vascular reactivity to vasopressin (VP) and phenylephrine (PE) were examined in thoracic aortas of male, female, and ovariectomized (OVX) female Sprague-Dawley rats. Maximal contractile response of control (Cont) aortas to VP was markedly higher in females (3,885 ± 332 mg/mg ring wt) than in males (810 ± 148 mg). Indomethacin (Indo; 10 μM) attenuated maximal response to VP in females (3,043 ± 277 mg) but not in males. SQ-29,548 (SQ; 1 μM) attenuated maximal response to VP in females (3,042 ± 290 mg) to a similar extent as Indo. D

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10

Krivoshchekov, Evgeny V., Frank Cetta, Oleg A. Egunov, Evgenii A. Sviazov, Valeriy O. Kiselev, and Nikita M. Troshkinev. "Surgical Management of Right Aortic Arch Obstruction Associated With Rare Form of Vascular Ring." World Journal for Pediatric and Congenital Heart Surgery 11, no. 2 (2020): 222–25. http://dx.doi.org/10.1177/2150135119885893.

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This clinical case demonstrated surgical management for a rare case of vascular ring associated with an elongated and kinked aortic arch and a right descending aorta in a ten-year-old male using an extra-anatomic bypass grafting method and dividing the vascular ring. Computer tomography performed at six-month follow-up showed a favorable surgical outcome.

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11

Li, Min, and John N. Stallone. "Estrogen potentiates vasopressin-induced contraction of female rat aorta by enhancing cyclooxygenase-2 and thromboxane function." American Journal of Physiology-Heart and Circulatory Physiology 289, no. 4 (2005): H1542—H1550. http://dx.doi.org/10.1152/ajpheart.01024.2004.

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To determine the roles of estrogen and constrictor prostanoids in vasopressin (VP)-induced contraction of female rat aorta, vascular reactivity to VP was determined in thoracic aortas of intact, ovariectomized, and ovariectomized + estrogen-replaced female rats in the presence of indomethacin (Indo), NS-398, SQ-29,548, or vehicle control. The effects of estrogen on vascular reactivity to the thromboxane A2 analog U-46619 were also examined. Maximal contractile response to VP in intact female rats (5,567 ± 276 mg/mg of aortic ring wt) was markedly attenuated by ovariectomy (2,485 ± 394 mg; P &l

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12

Nisli, Kemal, Umrah Aydogan, and Turkan Tansel. "Left-sided aortic arch, right-sided descending aorta, and right-sided arterial duct associated with interruption of the aortic arch and presence of Abbott’s artery." Cardiology in the Young 17, no. 4 (2007): 445–47. http://dx.doi.org/10.1017/s1047951107000674.

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AbstractWe describe a male infant, seen at the age of 10 days, with a very rare form of vascular ring. The aortic arch was left-sided, but the aorta descended on the right, with a right-sided persistently patent arterial duct associated with interruption of the aortic arch and presence of Abbott’s artery. We performed end-to-side anastomosis of the descending aorta to the ascending aorta, divided the Abbott’s artery and the right-sided arterial duct, and banded the pulmonary trunk. Despite our best efforts, the patient died on the eighth day after the surgical intervention.

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13

Chen, Jer-Shen, Chun-Yang Huang, and Jih-Hsin Huang. "Vascular ring connector–related pseudoaneurysm of the descending aorta." Journal of Thoracic and Cardiovascular Surgery 148, no. 6 (2014): 3236–37. http://dx.doi.org/10.1016/j.jtcvs.2014.02.019.

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14

Matsumoto, Takeo, and Kozaburo Hayashi. "Stress and Strain Distribution in Hypertensive and Normotensive Rat Aorta Considering Residual Strain." Journal of Biomechanical Engineering 118, no. 1 (1996): 62–73. http://dx.doi.org/10.1115/1.2795947.

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The effects of hypertension on the stress and strain distributions through the wall thickness were studied in the rat thoracic aorta. Goldblatt hypertension was induced by constricting the left renal artery for 8 weeks. Static pressure-diameter-axial force relations were determined on excised tubular segments. The segments were then sliced into thin ring specimens. Circumferential strain distributions were determined from the cross-sectional shape of the ring specimens observed before and after releasing residual stresses by radial cutting. Stress distributions were calculated using a logarith

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15

Hemmeryckx, Bianca, Marc F. Hoylaerts, Eveline Deloose, et al. "Age-associated pro-inflammatory adaptations of the mouse thoracic aorta." Thrombosis and Haemostasis 110, no. 10 (2013): 785–94. http://dx.doi.org/10.1160/th13-01-0022.

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SummaryArterial ageing may be associated with a reduction in vasodilation due to increased reactive oxygen species (ROS) production, whereas endothelial cell activation induces procoagulant changes. However, little is known on the effect of ageing on expression of anticoagulant endothelial markers such as endothelial protein C receptor (EPCR). To study age-associated alterations in smooth muscle cell (SMC) and endothelial cell (EC) structure and function, the aorta was isolated from 10-week-and 12– and 24-month-old C57BL/6J mice and analysed for its expression of genes involved in senescence,

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16

Kobayashi, Kei, Gen Harada, and Takeshi Shinkawa. "Right arch with prostaglandin-dependent coarctation and aberrant left carotid artery in a 22q11.2 deletion infant." Cardiology in the Young 31, no. 8 (2021): 1350–52. http://dx.doi.org/10.1017/s1047951121000561.

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AbstractRight aortic arch in association with coarctation of the aorta and vascular ring is a rare anatomy. We present an infant with chromosome 22q11.2 deletion, who had the right aortic arch with retroesophageal aberrant left subclavian artery and left internal carotid artery. The left external carotid artery and right common carotid artery originated together from the ascending aorta as a bovine branch. The infant also had severe coarctation, which was prostaglandin dependent.

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17

Rajbanshi, Bijoy G., Anil Acharya, Prabesh Neupane, et al. "Double Aortic Arch with Coarctation of Aorta in an Adolescent: Unraveling the Vascular Ring." AORTA 08, no. 06 (2020): 169–71. http://dx.doi.org/10.1055/s-0040-1721746.

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AbstractWe report the case of a 12-year-old girl with balanced double aortic arch with coarctation of the aorta presenting with symptoms of respiratory and swallowing difficulty. On investigation, the patient had a double aortic arch with coarctation and clinically nonsignificant disease in the infrarenal aorta. Division of the nondominant aortic arch was done through a left thoracotomy, along with resection of the coarctation segment and placement of an interposition Dacron tube graft.

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18

Godart, François, Dominique Piot, and Christian Rey. "Parachute tricuspid valve, supravalvar tricuspid ring, and coarctation of aorta in congenitally corrected transposition." Cardiology in the Young 7, no. 3 (1997): 337–39. http://dx.doi.org/10.1017/s1047951100004261.

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AbstractWe describe an unusual case of congenitally corrected transposition in which left-sided obstructions included a supravalvar tricuspid ring, a parachute deformity of the valve itself, and coarctation of the aorta. Surgical correction was performed in 3 stages. Initially we repaired the coarctation and banded the pulmonary trunk. Then we removed the band and, finally, attempted unsuccessfully to replace the tricuspid valve. When coarctation of the aorta occurs in congenitally corrected transposition, it is always wise to search carefully for abnormalities of the tricuspid valve.

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19

Clement, Elizabeth A., Bryce Laing, and Simon R. Turner. "Esophagectomy in a patient with double aortic arch and right descending aorta." Asian Cardiovascular and Thoracic Annals 27, no. 3 (2018): 226–27. http://dx.doi.org/10.1177/0218492318815375.

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We herein report the case of a 57-year-old man with esophageal cancer who was found to have a double aortic arch and right-sided descending aorta. Traditional approaches such as the Ivor Lewis and McKeown were excluded because the descending aorta would obscure the surgical field, and a neck anastomosis with the conduit through the ring could result in compression. We therefore opted for a left thoracoabdominal incision, allowing excellent exposure while reserving the possibility of placing the conduit substernally.

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20

Hankinson, Stephen J., Elliot A. Sultanik, and Gautam V. Ramani. "Aortic Root Abscess with Aorta to Right Atrium Fistula due to Vancomycin-Intermediate Staphylococcus aureus (VISA)." Case Reports in Cardiology 2019 (May 29, 2019): 1–3. http://dx.doi.org/10.1155/2019/3627063.

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We present a case of root abscess with aorta to right atrium fistula due to vancomycin-intermediate Staphylococcus aureus (VISA) after limb amputation and cardiac surgery. Patient underwent redo aortic valve replacement, patch repair of aorta to right atrial fistula, and tricuspid valve repair with a ring. Fistula formation is a rare complication of prosthetic valve endocarditis (PVE). This is the first case to discuss aortocavitary fistula (ACF) formation due to VISA. Transesophageal echocardiogram (TEE) is the preferred imaging modality to diagnose ACF.

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21

Langenstroer, P., and G. M. Pieper. "Regulation of spontaneous EDRF release in diabetic rat aorta by oxygen free radicals." American Journal of Physiology-Heart and Circulatory Physiology 263, no. 1 (1992): H257—H265. http://dx.doi.org/10.1152/ajpheart.1992.263.1.h257.

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The interaction of endothelium-derived relaxing factor (EDRF) and oxygen-derived free radicals may potentially play an important role in the pathophysiology of complications associated with diabetes. In the present study, we investigated spontaneous EDRF release in diabetic rat aorta that is unmasked by the addition of superoxide dismutase (SOD). SOD produced a significantly greater relaxation in diabetic aorta compared with control aorta using both aortic ring and bioassay preparations. This relaxation was unaltered by pretreatment with catalase or indomethacin. Removal of the endothelium or

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22

Stallone, John N., Ronald L. Salisbury, and Clifford T. Fulton. "Androgen-receptor defect abolishes sex differences in nitric oxide and reactivity to vasopressin in rat aorta." Journal of Applied Physiology 91, no. 6 (2001): 2602–10. http://dx.doi.org/10.1152/jappl.2001.91.6.2602.

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Contractions of rat thoracic aorta to vasopressin (VP) are threefold higher in females (F) than in males (M), primarily because nitric oxide (NO) attenuation of contraction is greater in M. To determine the role of the androgen receptor (AR) in this mechanism, vascular reactivity to VP was examined in thoracic aorta of the testicular-feminized male (Tfm) rat, which has an X-linked, recessive defect in AR function in affected M. Maximal contraction of normal aortas to VP was fourfold higher in F (4,128 ± 291 mg/mg ring wt) than in M (971 ± 133 mg); maximal response of Tfm (3,967 ± 253 mg) was s

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23

Serra, A. Jorge, Kathleen W. McNicholas, Paschal M. Spagna, N. Peter Karmilowicz, and Gerald M. Lemole. "Replacement of the descending thoracic aorta with intraluminal ring graft." Annals of Thoracic Surgery 48, no. 5 (1989): 689–92. http://dx.doi.org/10.1016/0003-4975(89)90792-3.

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24

Oz, Mehmet C., Robert C. Ashton, Kathleen W. MeNicholas, and Gerald M. Lemole. "Sutureless ring graft replacement of ascending aorta and aortic arch." Annals of Thoracic Surgery 50, no. 1 (1990): 74–79. http://dx.doi.org/10.1016/0003-4975(90)90091-j.

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25

JASSAL, D., T. NEILAN, U. FATIMA, et al. "Mitral valve ring dehiscence with an aorta–left atrial fistula." European Journal of Echocardiography 8, no. 4 (2007): 296–98. http://dx.doi.org/10.1016/j.euje.2006.03.013.

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26

Traisrisilp, Kuntharee, Yuri Yanase, Krittaya Phirom, and Theera Tongsong. "Prenatal Sonographic Features of Ring Chromosome 15: A Case Report and Literature Review." Diagnostics 12, no. 4 (2022): 885. http://dx.doi.org/10.3390/diagnostics12040885.

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Ring chromosome 15, a rare genetic disease, is very rarely prenatally diagnosed. We present a unique case of fetal ring chromosome 15 with ultrasound findings at 32 weeks of gestation including congenital diaphragmatic hernia, hypoplasia of the aorta with persistent left SVC, growth restriction, clubfeet and scoliosis. We also performed an analytical literature review of prenatal sonographic findings of the disease. This review suggests that ring chromosome 15 has a relatively specific sonographic pattern that could facilitate early detection. The specific sonographic features of ring chromoso

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27

YIN, XIAOWEN, XIAOMIN HU, TONG LI, and JIAYAO MA. "A NEW RING STENT WITH GRADED GEOMETRY FOR TREATING COARCTATION OF CURVED AORTA ARTERIES." Journal of Mechanics in Medicine and Biology 21, no. 02 (2021): 2150014. http://dx.doi.org/10.1142/s0219519421500147.

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Ring stent implantation has been widely used to treat coarctation of the aorta (CoA) as an alternative to surgery. Currently adopted stents with uniform geometry may cause uneven stress distribution and high stress concentration in curved vessels, leading to in-stent restenosis (ISR). Inspired by functional graded material, here we propose a new ring-and-link stent, which has graded geometry in order to achieve a reduced peak stress when deployed in curved arteries. Numerical simulation of a single ring of the graded stent indicated that by varying the circumferential spacing of wave crest, th

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28

Foubert, Kenn, Annelies Breynaert, Mart Theunis, et al. "Evaluation of the Anti-angiogenic Activity of Saponins from Maesa lanceolata by Different Assays." Natural Product Communications 7, no. 9 (2012): 1934578X1200700. http://dx.doi.org/10.1177/1934578x1200700910.

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Angiogenesis, in which a vascular network is established from pre-existing vessels, is a complex multistep process. Mechanisms underlying angiogenesis can be investigated using a variety of in vitro, ex vivo and in vivo approaches. Evaluation of several promising plants and plant metabolites, including terpenoids, revealed promising anti-angiogenic activity. Since the maesasaponins displayed anti-angiogenic activity in the chick chorioallantoic membrane (CAM) assay, their activity was further investigated in several test systems. The rat aorta ring assay was compared with the placental vein as

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29

Pieper, G. M., D. A. Mei, P. Langenstroer, and S. T. O'Rourke. "Bioassay of endothelium-derived relaxing factor in diabetic rat aorta." American Journal of Physiology-Heart and Circulatory Physiology 263, no. 3 (1992): H676—H680. http://dx.doi.org/10.1152/ajpheart.1992.263.3.h676.

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The bioassay technique was utilized to quantitate endothelium-derived relaxing factor (EDRF) released from perfused donor segments of control and diabetic rat aorta. In the presence of indomethacin, perfusates of donor segments with endothelium were allowed to superfuse recipient detector rings of normal rat aorta without endothelium. Under basal conditions, relaxations of the bioassay rings to perfusates of control and diabetic donor segments were similar. Perfusion of donor segments with acetylcholine produced relaxation of bioassay rings, which was decreased from endothelial perfusion of di

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30

Kowalik, Michał, Justyna Pyrzanowska, Agnieszka Piechal, et al. "Determination of Mechanical Properties of Rat Aorta Using Ring-Shaped Specimen." Solid State Phenomena 240 (August 2015): 255–60. http://dx.doi.org/10.4028/www.scientific.net/ssp.240.255.

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Ring-shaped specimen is commonly used in tests for determination of mechanical properties for arteries in hoop direction, especially for small mammals such as rats or mice. Although ring test is a lot more convenient than the tests concerning strip specimens, interpretation of the experimental data might be inconclusive – it is difficult distinguish whether it's still straightening up or the actual tension begins. The basic problem is to properly define initial length of specimen, which is essential for strain calculation. The purpose of this study was to evaluate various methods for strain ev

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31

Baz, Radu Octavian, Mihaly Enyedi, Cristian Scheau, Andreea Cristiana Didilescu, Radu Andrei Baz, and Cosmin Niscoveanu. "Unique Subclavian Vascular Ring Anomaly: Insights from CT Angiography." Life 15, no. 1 (2025): 77. https://doi.org/10.3390/life15010077.

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Aortic arch anomalies represent a range of congenital vascular malformations resulting from disruptions in the typical embryological development of the aortic arch and its branches. These anomalies, which vary widely in their presentation, can lead to significant clinical symptoms depending on their structure and position. We report the case of a 75-year-old male with intermittent hypertension, palpitations, and episodic warmth in the upper body. Computed tomography (CT) angiography revealed an atypical aortic arch anatomy with a unique right subclavian artery anomaly. The aortic arch displaye

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Demirel, E., J. Rusko, R. E. Laskey, D. J. Adams, and C. van Breemen. "TEA inhibits ACh-induced EDRF release: endothelial Ca(2+)-dependent K+ channels contribute to vascular tone." American Journal of Physiology-Heart and Circulatory Physiology 267, no. 3 (1994): H1135—H1141. http://dx.doi.org/10.1152/ajpheart.1994.267.3.h1135.

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The effects of K(+)-channel blockers on the acetylcholine (ACh)-induced relaxation of vascular smooth muscle, intracellular free Ca2+ concentration ([Ca2+]i) elevation, and ACh-evoked outward K+ current of endothelial cells of rabbit aorta were studied using bioassay, spectrofluorimetry, and patch-clamp techniques, respectively. In bioassay experiments, ACh caused relaxation of endothelium-denuded aortic rings in a concentration-dependent manner when perfused through an endothelium-intact donor segment of aorta but not when perfused directly onto the recipient aortic ring. ACh-induced relaxati

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33

FUKUDA, Yukio, Tetsuro KAMIYA, Hiroshi TONE, et al. "Vasodilating effects of NY-008 in ring preparation of rat aorta." Folia Pharmacologica Japonica 105, no. 5 (1995): 381–88. http://dx.doi.org/10.1254/fpj.105.381.

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34

Stos, Bertrand, Ghazal Adler, Emmanuel Lebret, and Jean-François Paul. "Vascular ring and coarctation of the aorta associated with oesophageal atresia." European Journal of Cardio-Thoracic Surgery 34, no. 5 (2008): 1110. http://dx.doi.org/10.1016/j.ejcts.2008.07.055.

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35

Tsang, Wendy, Gilbert Wu, Dmitry Rozenberg, Jeffrey Mosko, and Howard Leong-Poi. "Early Mitral Annuloplasty Ring Dehiscence With Migration to the Descending Aorta." Journal of the American College of Cardiology 54, no. 17 (2009): 1629. http://dx.doi.org/10.1016/j.jacc.2009.03.090.

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36

White, R. N., C. A. Burton, and J. S. H. Hale. "Vascular ring anomaly with coarctation of the aorta in a cat." Journal of Small Animal Practice 44, no. 7 (2003): 330–34. http://dx.doi.org/10.1111/j.1748-5827.2003.tb00164.x.

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37

Guha, Kaushik, Alice Davies, and James F. Sneddon. "A case of napkin ring calcification of aorta following traumatic transection." Cor et Vasa 60, no. 1 (2018): e99-e100. http://dx.doi.org/10.1016/j.crvasa.2016.12.006.

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38

Rope, Alan F., Robert B. Hinton, Robert L. Spicer, Ruthann Blough-Pfau, and Howard M. Saal. "Dilated ascending aorta in a child with ring chromosome 21 syndrome." American Journal of Medical Genetics 130A, no. 2 (2004): 191–95. http://dx.doi.org/10.1002/ajmg.a.30143.

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39

Nakano, Katsutoshi, Taiyu Hayashi, and Hiroshi Ono. "Vascular ring associated with d-transposition of the great arteries: when should we suspect aortic arch anomalies?" Cardiology in the Young 28, no. 12 (2018): 1489–90. http://dx.doi.org/10.1017/s1047951118001610.

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AbstractA male neonate with d-transposition of the great arteries was diagnosed with the concomitant anomaly of left circumflex aortic arch and right-sided ductus arteriosus, which formed a vascular ring. Initial postnatal echocardiography had demonstrated an obscured aortic isthmus mimicking coarctation of the aorta, which could be a diagnostic clue to circumflex aortic arch.

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40

Wang, Shuangyong, Michael Yamakawa, Samuel M. Santosa, et al. "Quantification of Angiogenesis and Lymphangiogenesis in the Dual ex vivo Aortic and Thoracic Duct Assay." Protein & Peptide Letters 27, no. 1 (2019): 30–40. http://dx.doi.org/10.2174/0929866526666190925145842.

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Background:: Lymphatic vessel formation (lymphangiogenesis) plays important roles in cancer metastasis, organ rejection, and lymphedema, but the underlying molecular events remain unclear. Furthermore, despite significant overlap in the molecular families involved in angiogenesis and lymphangiogenesis, little is known about the crosstalk between these processes. The ex vivo aortic ring assay and lymphatic ring assay have enabled detailed studies of vessel sprouting, but harvesting and imaging clear thoracic duct samples remain challenging. Here we present a modified ex vivo dual aortic ring an

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Agrawal, Vishal, Parth Solanki, Ritesh Shah, Divyakant Parmar, and Amit Mishra. "Anomalous origin of a pulmonary artery in a teenager with tetralogy of Fallot with associated double aortic arch and coronary arteriovenous fistula." Cardiology in the Young 29, no. 5 (2019): 727–29. http://dx.doi.org/10.1017/s1047951119000933.

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AbstractWe report the case of a 14-year-old female who had tetralogy of Fallot along with anomalous origin of the left pulmonary artery from the ascending aorta with co-dominant double aortic arch forming a complete vascular ring compressing the oesophagus along with a left main coronary artery to right ventricular outflow tract fistula. She underwent surgical correction without conduit placement.

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Hejnal, J., and P. Firt. "Use of an Intraluminal Double-ring Vascular Prosthesis in Thoracic Aorta Reconstruction." Thoracic and Cardiovascular Surgeon 34, no. 06 (1986): 365–67. http://dx.doi.org/10.1055/s-2007-1022175.

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Rebolj, Katja, Urška Batista, Kristina Sepčić, Vojteh Cestnik, Peter Maček, and Robert Frangež. "Ostreolysin affects rat aorta ring tension and endothelial cell viability in vitro." Toxicon 49, no. 8 (2007): 1211–13. http://dx.doi.org/10.1016/j.toxicon.2007.01.016.

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Pósa, Anikó, Krisztina Kupai, Rudolf Ménesi, et al. "Sexual Dimorphism of Cardiovascular Ischemia Susceptibility Is Mediated by Heme Oxygenase." Oxidative Medicine and Cellular Longevity 2013 (2013): 1–11. http://dx.doi.org/10.1155/2013/521563.

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We investigated the gender differences in heme-oxygenase (HO) enzyme, which produces endogenous vascular protective carbon monoxide (CO). We studied (1) the activity and expression of HO enzymes in the left ventricle (LV) and aorta, (2) basal increase in basal blood pressure provoked by arginine vasopressine (AVP)in vivo, (3) the heart perfusion induced by AVP, (4) the ST segment depression provoked by adrenaline and 30 seconds later phentolamine, and (5) the aorta ring contraction induced by AVP in female and male Wistar rats. We found that HO activity and the expression of HO-1 and HO-2 were

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Jung, Hanna, Eunjo Lee, Inkyeom Kim, and Gun Jik Kim. "Histone Deacetylase Inhibition Attenuates Aortic Remodeling in Rats under Pressure Overload." BioMed Research International 2020 (July 25, 2020): 1–8. http://dx.doi.org/10.1155/2020/4705615.

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The use of histone deacetylase (HDAC) inhibitor is a novel therapeutic strategy for cardiovascular disease. Studies have shown that many HDAC inhibitors have the ability to reduce the aortic remodeling in various animal models. We hypothesized that the HDAC inhibitor, MGCD0103 (MGCD), attenuates aortic remodeling in rats under pressure overload-induced by transverse aortic constriction (TAC). The aortic ring tension analysis was conducted using the thoracic aorta. Sections of the aorta were visualized after hematoxylin and eosin, trichrome, and Verhoeff-van Gieson staining, and immunohistochem

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Wei, Jeng, Yung-Tsai Lee, and Ching-Wen Wu. "One-stage aortic replacement for type A aortic dissection: using a Vasoring and a conventional elephant trunk graft." European Journal of Cardio-Thoracic Surgery 56, no. 1 (2019): 189–96. http://dx.doi.org/10.1093/ejcts/ezy455.

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AbstractOBJECTIVESWe used a vascular ring connector (Vasoring) and a conventional elephant trunk graft for complete repair in open surgery for type A aortic dissection. This report described the immediate and mid-term results of this new technique.METHODSWe used a rigid titanic ring as a stent in the vascular graft for rapid sutureless anastomosis in the reconstruction of type A aortic dissection.RESULTSA total of 65 consecutive patients with Stanford type A aortic dissection underwent open surgery performed by a single surgeon from November 2007 to February 2017. All patients underwent aortic

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Pósa, Anikó, Renáta Szabó, Krisztina Kupai, et al. "Cardioprotective Effects of Voluntary Exercise in a Rat Model: Role of Matrix Metalloproteinase-2." Oxidative Medicine and Cellular Longevity 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/876805.

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Background. Regular exercise at moderate intensity reduces cardiovascular risks. Matrix metalloproteinases (MMPs) play a major role in cardiac remodeling, facilitating physiological adaptation to exercise. The aim of this study was to examine the influence of voluntary physical exercise on the MMP-2 enzyme activity and to investigate the cardiac performance by measurement of angina susceptibility of the heart, the basal blood pressure, the surviving aorta ring contraction, and the cardiac infarct size after I/R-induced injury.Methods. Male Wistar rats were divided into control and exercising g

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Obaid, Khalid Ali. "Anti-angiogenesis efficacy of the aqueous extract of Allium sativum and its combination with melatonin in an animal model: in vivo and ex vivo studies." Pharmacia 71 (June 3, 2024): 1–8. http://dx.doi.org/10.3897/pharmacia.71.e125298.

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To better understand Allium sativum’s anti-angiogenesis activity, we undertook this study to examine its effect on the ex vivo rat aortic ring and the in vivo chick chorioallantoic membrane. Additionally, we compare Allium sativum’s anti-angiogenesis activity to melatonin and study the benefits of their combination. The study included six albino male rats (aged 5–7 weeks). The rats were euthanized, and then the thoracic aorta was removed and cut into rings that were 1 mm thick. The study was divided into three groups: a negative control (1% v/v DMSO), a positive control (100 μg/mL melatonin),

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ARAB, Mohammed Ilies, Mohamed BOUZIT, Houari AMEUR, and Youcef KAMLA. "Numerical study on thoracic aortic aneurysms : the aneurysms aggravation effects on the seconda rythme flows motion." Mechanics 26, no. 5 (2020): 407–15. http://dx.doi.org/10.5755/j01.mech.26.5.23254.

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It is Well know that there is a strong correlation between artery wall diseases and the flow structure disturbance. Aneurysms are enlargements situated at different but specifics parts of the vascular system; it is a silent diseas that evolves in time. The thoracic aortic aneurysms (T. A. A) remains relatively unstudied and therefore the present study aimis is to clarify the effects of the (T . A. A) evolution and the geometrical variations on both hydrodynamic instabilities inside the aortic bulge especially the vortex ring phenomenon and the secondary motion (Dean and lyne vortices) downsrea

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Grathwohl, Maj Kurt W., Maj Alaa Y. Afifi, Col Thomas A. Dillard, Maj James P. Olson, and Ltc Blaine R. Heric. "Vascular Rings of the Thoracic Aorta in Adults." American Surgeon 65, no. 11 (1999): 1077–83. http://dx.doi.org/10.1177/000313489906501116.

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Vascular rings have been well documented to cause respiratory and gastrointestinal symptoms in infants and children. Few reports document symptomatic vascular rings in adults, and most have emphasized dysphagia as the predominant symptom. We present the case of a 36-year-old white male with a double aortic arch and progressive dyspnea on exertion. This led us to review previous reports of vascular rings in adults. Criteria for review consisted of anatomically complete vascular rings of the aortic arch in adults age 18 years or older. We identified 25 prior cases for review and included our rec

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