scholarly journals Estimation of Selected Minerals in Aortic Aneurysms—Impaired Ratio of Zinc to Lead May Predispose?

2020 ◽  
Author(s):  
Katarzyna Socha ◽  
Alicja Karwowska ◽  
Adam Kurianiuk ◽  
Renata Markiewicz-Żukowska ◽  
Andrzej Guzowski ◽  
...  
Keyword(s):  
Aortic Aneurysm ◽  
Aortic Wall ◽  
Average Concentration ◽  
Aortic Aneurysms ◽  
Molar Ratio ◽  
Control Group ◽  
Tissue Samples ◽  
Abdominal Aortic ◽  
Mineral Components ◽  
Cadmium And Lead

Abstract The objective of this study was to estimate the content of copper, zinc, selenium, cadmium, and lead in the tissue of patients with aortic aneurysms. Molar ratio of Cu/Zn and antioxidant micronutrients to toxic elements was also calculated. A total of 108 patients: 47 with abdominal aortic aneurysm (AAA), 61 patients with thoracic aortic aneurysm (TAA), and a control group of 20 abdominal aortic (AA) and 20 thoracic aortic (TA) wall samples from the deceased were studied. The concentrations of mineral components in the tissue samples were determined by the AAS method. The average concentration of Cu in the aortic wall of patients with TAA was significantly lower than in the aortic wall samples of healthy people. The mean concentration of Zn in the aortic wall of patients with AAA and TAA was significantly lower than in the control group samples. Cu/Zn ratio was significantly higher in AAA patients than in control group which indicates a greater role of oxidative stress and inflammatory process in this type of aneurysm. The concentration of Se was significantly decreased in TAA patients compared with the control group; in turn, the concentration of Pb was increased in this group of patients. We observed significantly lower Cu/Pb ratio in TAA patients than in control group, whereas Zn/Pb ratio was significantly lower comparing with control samples in both types of aneurysms. In the examined aneurysms, we have shown the differences in concentrations of mineral components compared with the control tissues. The Zn concentration was decreased in both AAA and TAA samples. Impaired ratio of Zn to Pb may predispose to aortic aneurysms.

Abstract 667: The Role of Aortic Wall-Nuclear Factor- kappa B (NF-kB) Signaling in Formation of Dissecting Aortic Aneurysms

2015 ◽  
Vol 35 (suppl_1) ◽  
Author(s):  
Talha Ijaz ◽  
Hong Sun ◽  
Adrian Recinos ◽  
Ronald G Tilton ◽  
Allan R Brasier
Keyword(s):  
Flow Cytometry ◽  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Aortic Wall ◽  
Aortic Rupture ◽  
Aortic Aneurysms ◽  
Tunel Staining ◽  
Abdominal Aortic ◽  
Significant Difference

Introduction: Abdominal aortic aneurysm is a devastating disease since it can lead to aortic rupture and instantaneous death. We previously demonstrated that IL-6 secreted from the aortic wall is necessary for the development of abdominal aortic aneurysm and dissection (AAD). Since IL-6 is a NF-kB/RelA dependant gene, we investigated the role of aortic wall- NF-kB/RelA signaling in the development of AAD. Methods and Results: To test the role of aortic wall-RelA, we utilized Cre-Lox technology to delete RelA from aortic cells. Tamoxifen-inducible, Col1a2-promoter driven Cre mice (Col1a2-Cre) were crossed with mT/mG Cre-reporter mice to determine which aortic cells undergo genetic recombination after Cre activation. Flow cytometry analysis of the aortic wall indicated that 88% of the genetically recombined cells were SMCs and 8% were fibroblasts. Next, RelA floxed (RelA f/f) mice, generated in our lab, were crossed with Col1a2-Cre mice. RelA f/f Cre+ and RelA f/f Cre- were stimulated with tamoxifen for 10 days to generate aortic-RelA deficient (Ao-RelA-/-) or wild-type (Ao-RelA+/+) transgenics. Flow cytometry, qRT-PCR, and immunohistochemistry analysis suggested a depletion of aortic-RelA greater than 60%. To test the role of Ao-RelA in AAD, Ao-RelA -/- (n= 20) and Ao-RelA +/+ (n=14) mice were infused with angiotensin II for 7 days. Surprisingly, 20% of Ao-RelA-/- mice died from development of AAD and aortic rupture while no deaths were observed in Ao-RelA+/+ group. In addition, 40% of Ao-RelA-/- mice developed AAD compared to 14% of Ao-RelA+/+ mice. There was no significant difference in TUNEL staining or ERTR7+ fibroblast population between the two groups. Conclusion: Our studies suggest that aortic wall-RelA may be necessary for protection from AAD.

scholarly journals Prevalenceof abdominal aortic aneurysm among stage 3-4 chronic kidney disease patients aged 55 years and older

2020 ◽  
pp. 9-16
Author(s):  
O. Karaarslan Cengiz ◽  
G. Nergizoglu
Keyword(s):  
Chronic Kidney Disease ◽  
Abdominal Aortic Aneurysm ◽  
Kidney Disease ◽  
Aortic Aneurysm ◽  
Glomerular Filtration ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Control Group ◽  
Study Group ◽  
Abdominal Aortic

The risk of cardiovascular disease begins to increase from the early stages of chronic kidney disease (CKD). Abdominal aortic aneurysms are the most common arterial aneurysms of peripheral arterial diseases. The frequency of abdominal aortic aneurysm varies according to the population studied. This study aimed to determine the prevalence of abdominal aortic aneurysm in patients with stage 3-4  CKD and investigate  CKD is a risk factor for abdominal aortic aneurysm formation. Methods. Patients aged 55 years and older who were followed up in the internal medicine outpatient clinics were enrolled. Two hundred CKD patients with glomerular filtration rates between 15-59 mL/min per 1.73 m2 were included in the study group, and 110 patients with glomerular filtration rates of 60 mL/min per 1.73 m2 or above were assigned to the control group. An ultrasonography device with a 3.5 MHz probe was used for screening. Abdominal aortic diameters of 3 cm and above were accepted as abdominal aortic aneurysms. Results. Eighteen patients in the study group (9%) and four in the control group (3.6%) had an abdominal aortic aneurysm. The prevalence of abdominal aortic aneurysms was higher in the  CKD  group. However, the difference was not statistically significant (p=0.078). Moreover, the median aortic diameter was 21.8 mm (14-44 mm) in the study group, compared to 21.0 mm (14-46 mm) in the control group. The prevalence of the abdominal aortic aneurysm was 14.9% in stage 4  CKD patients and 6% in stage 3  CKD patients (p=0.038). Conclusion. An abdominal aortic aneurysm is more common in patients with  CKD although it does not reach statistical significance. The median aortic diameter was significantly wider in CKD patients compared to the control group . The prevalence of abdominal aortic aneurysm increased with an increase in the CKD stage .

Diet and the content of selenium and lead in patients with abdominal aortic aneurysm

VASA ◽  
2011 ◽  
Vol 40 (5) ◽  
pp. 381-389 ◽  
Author(s):  
Socha ◽  
Borawska ◽  
Gacko ◽  
Guzowski
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Healthy Volunteers ◽  
Arterial Wall ◽  
Aortic Wall ◽  
Dietary Habits ◽  
Absorption Spectrometry ◽  
Control Group ◽  
Abdominal Aortic ◽  
The Mean

Background: To evaluate the content of selenium (Se) and lead (Pb) and the influence of dietary habits and smoking in patients with abdominal aortic aneurysm (AAA). Patients and methods: Forty-nine patients with AAA prior to surgical procedures aged 42 - 81 years and a control group of 22 healthy volunteers aged 31 - 72 years and 17 aortic wall samples from deceased were included in the study. Food-frequency questionnaires were implemented in AAA patients to collect the dietary data. Se and Pb concentrations in the serum and blood, respectively, and in arterial wall and parietal thrombus samples were determined by the atomic absorption spectrometry method. Results: The mean Se level in serum of patients with AAA (60.37 ± 21.2 microg/L) was significantly (p < 0.008) lower than in healthy volunteers (75.87 ± 22.4 microg/L). We observed a significant correlation (r = 0.69, p < 0.0001) between the content of Se in serum and the parietal thrombus of examined patients. Se concentration in aortic wall was inversely correlated to the concentration of Pb (r = - 0.38, p < 0.02). We observed significantly lower (p < 0.05) concentrations of Se (39.14 ± 37.1 microg/g) and significantly higher (p < 0.05) concentrations of Pb (202.69 ± 180.6 microg/g) in aortic wall samples of smoking patients than in non-smoking patients (77.56 ± 70.0 microg/g, 73.09 ± 49.8 microg/g; respectively). Conclusions: Se serum level is lower in patients with AAA than in healthy volunteers. In aortic wall, Se concentration is inversely correlated with Pb concentration. Dietary habits and smoking have an influence on the Se and Pb status in patients with AAA.

scholarly journals Is Abdominal Aortic Aneurysm Behavior after Endovascular Repair Associated with Aneurysm Wall Density on Computed Tomography Angiography?

Medicina ◽  
2019 ◽  
Vol 55 (8) ◽  
pp. 406
Author(s):  
Skrebūnas ◽  
Lengvenis ◽  
Builytė ◽  
Žulpaitė ◽  
Bliūdžius ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Computed Tomography Angiography ◽  
Aortic Wall ◽  
Control Group ◽  
Density Score ◽  
Aneurysm Wall ◽  
Abdominal Aortic ◽  
Aortic Pathology

Background and objectives: Abdominal aortic aneurysm (AAA) growth is unpredictable after the endovascular aneurysm repair (EVAR). Continuing aortic wall degradation and weakening due to hypoxia may have a role in post-EVAR aneurysm sac growth. We aimed to assess the association of aortic wall density on computed tomography angiography (CTA) with aneurysm growth following EVAR. Materials and Methods: A total of 78 patients were included in the study. The control group consisted of 39 randomly assigned patients without aortic pathology. Post-EVAR aneurysm sac volumes on CTA were measured twice during the follow-up period to estimate aneurysm sac behavior. A maximum AAA sac diameter, aortic wall and lumen densities in Hounsfield units (HU) on CTA were measured. A relative aortic wall density (the ratio of aortic wall to lumen densities) was calculated. A statistical data analysis was performed using standard methods. Results: An increase in the AAA sac volume was observed in 12 (30.8%) cases. Median relative aortic wall density on CTA scores in both the patient and the control group at the level of the diaphragm were similar: 0.15 (interquartile range (IQR), 0.11–0.18) and 0.16 (IQR 0.11–0.18), p = 0.5378, respectively. The median (IQR) relative aortic wall density score at the level of the maximum AAA diameter in the patient group was lower than at the level below renal arteries in the control group: 0.10 (0.07–0.12) and 0.17 (0.12–0.23), p < 0.0001, respectively. The median (IQR) relative growing AAA sac wall density score was lower than a relative stable/shrinking AAA sac wall density score: 0.09 (0.06–0.10) and 0.11 (0.09–0.13), p = 0.0096, respectively. Conclusions: A lower aortic aneurysm wall density on CTA may be associated with AAA growth after EVAR.

scholarly journals Comparison of Clinical Effects of Abdominal Aortic Aneurysm Treatment with Open and Endovascular Techniques

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Ning Dou ◽  
Jing-jing Tan ◽  
Jian Zuo
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Open Surgery ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Control Group ◽  
Therapeutic Effects ◽  
Clinical Effects ◽  
Observation Group ◽  
Abdominal Aortic

Objective: To compare the therapeutic effects of endovascular and open surgery on abdominal aortic aneurysms.  Methods: From June 2019 to May 2020, 60 cases of abdominal aortic aneurysms (AAA) were divided into observation group (30 cases in endovascular technique group) and control group (30 cases in open technique group). Results: The blood loss, operative time and blood transfusion of the observation group were significantly lower than those of the control group (P<0.05). The incidence of postoperative complications is low, and the incidence of long-term complications is relatively high.  Conclusion: In the treatment of abdominal aortic aneurysm, endovascular technology has the advantages of low risk, less trauma, and quick recovery after surgery. Open surgery is suitable for patients who cannot receive endovascular treatment. In order to achieve good treatment effects, it is necessary to choose an appropriate treatment method according to the actual situation of the patient.

Inflammation in abdominal aortic aneurysms: cellular infiltrate and cytokine profiles

Vascular ◽  
2012 ◽  
Vol 20 (5) ◽  
pp. 278-283 ◽  
Author(s):  
Matthew J Eagleton
Keyword(s):  
Aortic Aneurysm ◽  
Aortic Wall ◽  
Wall Stress ◽  
Aortic Aneurysms ◽  
Aneurysm Formation ◽  
Abdominal Aortic ◽  
Genetic Abnormalities ◽  
Cytokine Milieu ◽  
Ultimate Fate ◽  
Pathologic Processes

Abdominal aortic aneurysm (AAA) pathogenesis occurs as a result of the altered homeostasis of the aortic vessel wall structural proteins. This results in weakening, and subsequent expansion, of the aorta leading to aneurysm formation. Multiple mechanisms are involved in this process, including genetic abnormalities, biomechanical wall stress, apoptosis, and proteolytic degradation of the aortic wall. One key hallmark of this pathology, which orchestrates the interaction of the various pathologic processes, is inflammation. The inflammatory process is characterized by the infiltration of a variety of cells, which leads to the upregulation of multiple cytokines. The balance of the cellular type and resultant cytokine milieu determines the ultimate fate of the aortic wall – healing, atherosclerosis or aneurysm formation. This review highlights some of the known cellular and cytokine inflammatory events that are involved in aortic aneurysm formation.

Current evidence and prospects for medical treatment of abdominal aortic aneurysms

VASA ◽  
2005 ◽  
Vol 34 (4) ◽  
pp. 217-223 ◽  
Author(s):  
Diehm ◽  
Schmidli ◽  
Dai-Do ◽  
Baumgartner
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Medical Treatment ◽  
Endovascular Treatment ◽  
Abdominal Aortic Aneurysms ◽  
Aortic Aneurysms ◽  
Current Evidence ◽  
Significant Morbidity ◽  
Abdominal Aortic ◽  
Risk Of Rupture

Abdominal aortic aneurysm (AAA) is a potentially fatal condition with risk of rupture increasing as maximum AAA diameter increases. It is agreed upon that open surgical or endovascular treatment is indicated if maximum AAA diameter exceeds 5 to 5.5cm. Continuing aneurysmal degeneration of aortoiliac arteries accounts for significant morbidity, especially in patients undergoing endovascular AAA repair. Purpose of this review is to give an overview of the current evidence of medical treatment of AAA and describe prospects of potential pharmacological approaches towards prevention of aneurysmal degeneration of small AAAs and to highlight possible adjunctive medical treatment approaches after open surgical or endovascular AAA therapy.

Gender differences in abdominal aortic aneurysm therapy – a systematic review

VASA ◽  
2018 ◽  
Vol 47 (4) ◽  
pp. 267-272 ◽  
Author(s):  
Konstanze Stoberock ◽  
Tilo Kölbel ◽  
Gülsen Atlihan ◽  
Eike Sebastian Debus ◽  
Nikolaos Tsilimparis ◽  
...  
Keyword(s):  
Gender Differences ◽  
Abdominal Aortic Aneurysm ◽  
Survival Rate ◽  
Aortic Aneurysm ◽  
Endovascular Treatment ◽  
Aortic Aneurysms ◽  
Lower Survival Rate ◽  
Lower Survival ◽  
Abdominal Aortic ◽  
Risk Of Rupture

Abstract. This article analyses if and to what extent gender differences exist in abdominal aortic aneurysm (AAA) therapy. For this purpose Medline (PubMed) was searched from January 1999 to January 2018. Keywords were: “abdominal aortic aneurysm”, “gender”, “prevalence”, “EVAR”, and “open surgery of abdominal aortic aneurysm”. Regardless of open or endovascular treatment of abdominal aortic aneurysms, women have a higher rate of complications and longer hospitalizations compared to men. The majority of studies showed that women have a lower survival rate for surgical and endovascular treatment of abdominal aneurysms after both elective and emergency interventions. Women receive less surgical/interventional and protective medical treatment. Women seem to have a higher risk of rupture, a lower survival rate in AAA, and a higher rate of complications, regardless of endovascular or open treatment. The gender differences may be due to a higher age of women at diagnosis and therapy associated with higher comorbidity, but also because of genetic, hormonal, anatomical, biological, and socio-cultural differences. Strategies for treatment in female patients must be further defined to optimize outcome.

scholarly journals A 60-year-old woman with asymptomatic total thoracic–abdominal aortic aneurysm

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Jianying Deng ◽  
Wei Liu
Keyword(s):  
Abdominal Aortic Aneurysm ◽  
Aortic Aneurysm ◽  
Effective Treatment ◽  
Clinical Symptoms ◽  
Aortic Aneurysms ◽  
Case Presentation ◽  
Second Stage ◽  
Aortic Replacement ◽  
Abdominal Aortic ◽  
Thoracoabdominal Aortic Replacement

Abstract Introduction Total thoracic–abdominal aortic aneurysm is a rare disease in cardiovascular surgery, with high surgical risk and high mortality. Surgery is considered the most effective treatment for total aortic aneurysms. Case presentation Our group admitted a 60-year-old female patients with asymptomatic complex total thoracic–abdominal aortic aneurysm, and successfully performed two-staged surgery, namely Bentall + Sun’s operation in the first-stage and thoracoabdominal aortic replacement in the second-stage. The results of the surgery were satisfactory. Conclusions Patients with total thoracic–abdominal aortic aneurysm may not have typical clinical symptoms and require a careful and comprehensive physical examination and related auxiliary examinations by clinicians. Staged repair of total thoracic–abdominal aortic aneurysms is still a safe and effective treatment.

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