scholarly journals Cumulative Effect of Cardiovascular Risk Factors on Regulation of AMPK/SIRT1-PGC-1α-SIRT3 Pathway in the Human Erectile Tissue

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Andressa S. Pereira ◽  
Alexandra M. Gouveia ◽  
Nuno Tomada ◽  
Adriana R. Rodrigues ◽  
Delminda Neves

Cardiovascular disease risk factors (CVDRF), especially diabetes mellitus (DM), disrupt oxidative stress response. This condition underlies endothelial dysfunction, early manifested in men as erectile dysfunction. The current study is aimed at elucidating the impact of CVDRF in the oxidation responsive AMPK/SIRT1-PGC-1α-SIRT3 pathway and related miRNAs in the human corpus cavernosum. Human penile tissue fragments from individuals submitted to programmed urological surgeries (n=27), aged 43-63 years, were clustered depending on the presence of CVDRF; the control group included samples from patients without CVDRF, and groups A and B included samples from patients with DM and additional CVDRF, totalizing ≤2 CVDRF (group A) and ≥3 CVDRF (group B). Dual-immunolabelling of SIRT3, SOD2, or GPX1 with α-actin in tissue sections was carried out. The assessment of expression levels of NOX1, phospho-AMPKα, total AMPKα, SIRT1, PGC-1α, SIRT3, SOD2, and GPX1 was performed by western blotting and of miR-200a, miR-34a, miR-421, and miR-206 by real-time PCR. Phospho-AMPKα and SIRT3 expression was found significantly increased in group B relative to other groups, suggesting a marked influence of CVDRF, additional to DM, in the regulation of these enzymes. NOX1 was also increased in group B relative to controls. Only an increasing tendency was observed in the phospho-AMPKα/total AMPKα ratio, SIRT1, and PGC-1α expression in groups A and B when compared with controls. Concerning antioxidant enzymes, GPX1 expression was found incremented in group A, but SOD2 expression was decreased in groups A and B, comparative with controls. Group B presented significantly diminished levels of miR-421 and miR-200a, but only a decreasing trend on miR-34 and miR-206 expression was observed. Taken together, our findings demonstrated that besides DM, additional CVDRF presented a cumulative effect in the cellular response to oxidative unbalance, contributing to AMPK/SIRT1-PGC-1α-SIRT3 pathway activation. SOD2, a major mitochondrial antioxidant defence, did not follow the same variation.

2018 ◽  
Vol 8 (3) ◽  
pp. 140-147
Author(s):  
Bakir Katana ◽  
Samir Bojičić ◽  
Muris Pecar ◽  
Eldad Kaljić ◽  
Namik Trtak ◽  
...  

Introduction:  Identification of the risk factors that can be modified is an essential aspect in the development of the effective strategy for therapeutic intervention with the purpose to improve mobility and injury prevention and post-fall consequences. This research aimed to analyze the impact of programmed therapeutic exercises on the fall risk factors in the elderly. Methods: We included 260 patients older than 65 years, and assigned them randomly into three groups. Group A: 65 patients subjected to therapeutic exercises for moderate-intensity muscle strengthening with Theraband stretch straps (corresponding to 11-14 on the Borg rating of perceived exertion scale). Group B: 65 patients subjected to therapeutic anti-gravity exercises. Control group: 130 patients not participating in programmed therapeutic exercises. Presence of fall risk factors was assessed in all three groups with standardized Fast Evaluation of Mobility, Balance, and Fear test (FEMBAF) before the initiation of therapy, after three and after six months of treatment. Results: At the end of the study, the subjects of the group A had significantly fewer limitations in performing basic life activities at home compared to the patients of the control and Group B, p = 0.037. The control group subjects were statistically significantly more likely to complain of vertigo than subjects of the experimental groups, p = 0.021. The subjects of the experimental groups had more than two falls than the control group subjects, p = 0.003 statistically. In the control group, the number of fractures after the fall at the end of the study increased significantly, statistically higher than in the subjects of the experimental groups, P = 0.037. Conclusion: Programmed therapeutic exercise significantly reduces the risk of falling factors, and significant effects have been achieved among subjects who have exercised with elastic strips.


Author(s):  
Joanna Matla ◽  
Katarzyna Filar-Mierzwa ◽  
Anna Ścisłowska-Czarnecka ◽  
Agnieszka Jankowicz-Szymańska ◽  
Aneta Bac

Seniors are a constantly growing group of people in many societies. It is necessary to develop physiotherapeutic programs to improve their mobility. The aim of this study was to assess the impact of the physiotherapeutic program conducted unstable ground on selected indicators of motor functions of elderly women. Sixty women (60–80 years) participated in the research. Group A (N = 20) underwent a 12-week physiotherapeutic program on stable ground, group B (N = 20) followed an exercise program on unstable ground, and group C (N = 20) (control group) had no therapeutic intervention. The effects of the therapy were assessed by using a FreeMed platform (foot load analysis) and a Biosway balance system. The results were compared using ANOVA (the one-way analysis), the Kruskal–Wallis test and also the post hoc tests (Tukey’s test and the multiple comparison test). In group A, a statistically significant change was observed in the static test and balance assessment, in group B this was observed in the static and dynamic foot tests and balance assessment, in group C, no statistical significance was achieved. The authors’ physiotherapeutic program had a statistically significant effect on changes in the balance and selected indicators of the motor functions of the examined people. Comparing the results before and after the therapy more improvement changes were noted in women training on an unstable ground compared to women training on a stable ground.


Nutrients ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 952 ◽  
Author(s):  
Christine Tørris ◽  
Milada Cvancarova Småstuen ◽  
Marianne Molin

Non-communicable diseases (NSDs) are responsible for two-thirds of all deaths globally, whereas cardiovascular disease (CVD) alone counts for nearly half of them. To reduce the impact of CVD, targeting modifiable risk factors comprised in metabolic syndrome (e.g., waist circumference, lipid profile, blood pressure, and blood glucose) is of great importance. Beneficial effects of fish consumption on CVD has been revealed over the past decades, and some studies suggest that fish consumption may have a protective role in preventing metabolic syndrome. Fish contains a variety of nutrients that may contribute to health benefits. This review examines current recommendations for fish intake as a source of various nutrients (proteins, n-3 fatty acids, vitamin D, iodine, selenium, and taurine), and their effects on metabolic syndrome and the CVD risk factors. Fatty fish is recommended due to its high levels of n-3 fatty acids, however lean fish also contains nutrients that may be beneficial in the prevention of CVD.


2008 ◽  
Vol 168 (9) ◽  
pp. 928 ◽  
Author(s):  
Gregory L. Burke ◽  
Alain G. Bertoni ◽  
Steven Shea ◽  
Russell Tracy ◽  
Karol E. Watson ◽  
...  

2020 ◽  
Vol 5 (4) ◽  
pp. 324-329
Author(s):  
AHM Khairul Imam Suman ◽  
Khadija Begum ◽  
Kaniz Rahman ◽  
Abu Mohammed Talukder ◽  
SM Matiur Rahman ◽  
...  

Xanthelasma palpebrarum (XP) is the most common cutaneous xanthoma occurs over or surrounding the eyelids in yellowish color and various shapes. The objective of this study was to describe the status of cardiovascular disease risk factors in XP patients and determine their association with XP. A case-control study was conducted among 81 cases (have XP) and 81 controls (no XP) among patients attended for cardiac check-up between January 2019 to July 2019 at Ad-Din Women's Medical College Hospital, Dhaka, Bangladesh. Among 162 subjects were interviewed in our study, majority were female (62.3%). XP were found more prevalent among female and several cardiac risk factors were significantly associated with XP. The chi-square analysis indicates gender (p=0.035), BMI (p=0.01), Angina history (p=0.008), and serum LDL (p=0.024) were significantly associated with presence of XP. A higher percentage of patients with high total serum cholesterol, TG levels, and LDL was observed in patients with XP in compared to control group. Our study reveals an increased presence of cardiovascular disease risk factors among patients with xanthelasma. Moreover, a statistically significant association of gender, BMI, angina history, and serum LDL with XP were observed. Asian J. Med. Biol. Res. June 2019, 5(4): 324-329


Blood ◽  
2008 ◽  
Vol 112 (11) ◽  
pp. 4599-4599
Author(s):  
Xiaodan Luo ◽  
Qifa Liu ◽  
Zhiping Fan ◽  
Yu Zhang ◽  
Juan Ning

Abstract Objective To evaluate the impact of luteinizing hormone-releasing hormone (LHRH) on the protection of thymic function after allogenic hematopoietic stem cell transplantation (allo-HSCT). Methods Established model of allogenic murine HSCT (C57BL/6→BALB/c). The severity of acute graft-versus-host-disease (GVHD) was assessed by a clinical scoring system that incorporates five clinical parameters: weight loss, posture, activity, fur texture and skin integrity. The intra-cellular levels of interferon-γ (INFγ), tumor necrosis factor-α (TNFα) and interleukin-1β (IL-1β) in thymocyte were analyzed by protein array and thymic function was evaluated by quantification of signaljoint TCR rearrangement excision circles (sjTRECs). Results Recipients in group A (allogenic mice), B( allogenic LHRH castrated-mice) and C (syngenic mice) all attained hematopoiesis reconstitution. White blood cell counts of mice in groups A, B and C were over 1.0×109/L on day (10.60±1.34), day (9.40±0.55) and day (9.40±0.89), respectively. There was no significant difference among the time of hematopoiesis reconstitution in three groups. The time of acute GVHD occuring was on day +11±0.5 and +14±0.5 posttransplantation, respectively, in groups A and B, and all mice had acute GVHD with the incidence of 100% in groups A and B. The average scores of acute GVHD in groups A and B were (1.56±0.51) and (0.92±0.49), respectively. Acute GVHD scores in group A was significantly higher than that in group B (P=0.000). The levels of INFγ, TNFα and IL-1β in control groups were 1.67±1.76 ng/ml, 1.69±1.07 pg/ml and 5.55±3.56 pg/ml, respectively. The levels of INFγ in groups A, B and C were (10.74±2.55) ng/ml,(6.81±2.33) ng/ml and (5.52±3.96) ng/ml, respectively. The levels of TNFα were (7.51±2.89) pg/ml, (4.30±0.63) pg/ml and (3.36±2.31) pg/ml, respectively. The levels of IL-1β were (25.83±8.91) pg/ml, (19.33±3.03) pg/ml and (11.94±4.00) pg/ml, respectively. There were significant differences in the levels of cytokines between group A and the control group (P=0.000, 0.000, 0.000). The levels of cytokines in group B were significantly higher than those of control group (P 0.010,0.037,0.000). The levels of INFγ in group C were significantly higher than those of the control group (P=0.044). Among groups A, B and C, there were significant differences in the levels of INFγ, TNFα and IL-1β (P=0.001,0.000,0.000). The levels of INFγ and TNFα in group A were significantly higher than those in group B (P=0.041,0.013). The levels of INFγ, TNFα and IL-1β in group A were significantly higher than those in group C (P=0.009, 0.002, 0.000). The analysis of linear regression showed that the average levels of INFγ paralled with aGVHD scores (r2 0.363,P=0.038). The average sjTRECs copies/1000 PBMNCs were (39.41±44.68) in the control group and (12.29±13.02), (58.01±71.82) and (19.61±14.59) in groups A, B and C, respectively. There was no significant difference in the multiple comparisons of peripheral blood levels of sjTRECs among these four groups (P=0.575). Conclusion INFγ ATNFα and IL-1β might be involved in the damage to the thymus by acute GVHD. Sex steroid inhibitor can not only reduce the severity of thymic damage after allo-HSCT, but also reduce the severity of aGVHD and the mechanism might be associated with the reduction of intracellular levels of INFγ and TNFα in thymocyte.


Sign in / Sign up

Export Citation Format

Share Document