[Risk factor control, lifestyle intervention, and prescribed medication in a cohort of patients with ischemic heart disease]

OBJECTIVE

The aim of this study was to analyze the recommended prevention measures in our health area for patients discharged after a myocardial infarction.

METHODS

This was a retrospective descriptive study that selected patients with acute coronary syndrome in our health area in the previous calendar year. Control of the risk factors observed at the time of the coronary event and at 1 year and medication prescribed 1 year after the episode were studied. Variables including age, sex, control of dyslipidemia, hypertension or diabetes mellitus, adherence to treatment and lifestyle habits were analyzed.

RESULTS

Risk factor control was insufficient and sometimes even unassessed at the time of infarction. Although a slight improvement was perceived, control remained insufficient 1 year later. Moreover, patients, particularly women, were undertreated: one fifth (20%) more men were receiving appropriate treatment than women year after the myocardial event.

CONCLUSIONS

An additional effort must be made compared to what is currently being done, both by specialists in Hospital Care and Primary Care, to carry out good control of risk factors, meaning the control of certain diseases such as diabetes, high blood pressure or dyslipidemia, as well as habits or lifestyles that increase the probability of suffering a cardiovascular event. Furthermore, it is important to avoid these cardiovascular diseases and their relapse to reinforce adherence to the prescribed treatments.

A Comprehensive Literature Review on Cardioprotective Effects of Bioactive Compounds Present in Fruits of Aristotelia chilensis Stuntz (Maqui)

Some fruits and vegetables, rich in bioactive compounds such as polyphenols, flavonoids, and anthocyanins, may inhibit platelet activation pathways and therefore reduce the risk of suffering from CVD when consumed regularly. Aristotelia chilensis Stuntz (Maqui) is a shrub or tree native to Chile with outstanding antioxidant activity, associated with its high content in anthocyanins, polyphenols, and flavonoids. Previous studies reveal different pharmacological properties for this berry, but its cardioprotective potential has been little studied. Despite having an abundant composition, and being rich in bioactive products with an antiplatelet role, there are few studies linking this berry with antiplatelet activity. This review summarizes and discusses relevant information on the cardioprotective potential of Maqui, based on its composition of bioactive compounds, mainly as a nutraceutical antiplatelet agent. Articles published between 2000 and 2022 in the following bibliographic databases were selected: PubMed, ScienceDirect, and Google Scholar. Our search revealed that Maqui is a promising cardiovascular target since extracts from this berry have direct effects on the reduction in cardiovascular risk factors (glucose index, obesity, diabetes, among others). Although studies on antiplatelet activity in this fruit are recent, its rich chemical composition clearly shows that the presence of chemical compounds (anthocyanins, flavonoids, phenolic acids, among others) with high antiplatelet potential can provide this berry with antiplatelet properties. These bioactive compounds have antiplatelet effects with multiple targets in the platelet, particularly, they have been related to the inhibition of thromboxane, thrombin, ADP, and GPVI receptors, or through the pathways by which these receptors stimulate platelet aggregation. Detailed studies are needed to clarify this gap in the literature, as well as to specifically evaluate the mechanism of action of Maqui extracts, due to the presence of phenolic compounds.

Consumption of Deep-Fried Food and Its Association with Cardiovascular Risk Factors among First-Year Students in a Chilean University

The increase in the consumption of deep-fried foods (DFFs) from street vendors in Chile affects body weight and health. However, the actual consumption frequency of these types of foods by population and their relationship with cardiovascular risk factors (CVRFs) is unknown. The consumption frequency of eight DFFs sold in street vendors was obtained through a questionnaire. CVRFs were determined through survey and anthropometric measurements. The prevalence of high values of CVRF was determined regarding gender and frequency of consumption of DFF monthly. 66% of the population consumed DFF more than 4 times monthly; each individual would consume about 4 (3.83) servings/week and with 81% of preference of products sold from street vendors. 89.2% of the population exhibited a family history of CVD. From the means comparison application, although the values obtained from CVRF were mostly within normal ranges at the population level, there were significant differences in CVRF according to gender in body mass index, waist circumference, systolic pressure, and sedentary. The prevalence of elevated values of CVRF according to gender was higher in men than in women in 7 of 12 of the parameters of CVF. The prevalence of elevated values of CVRF according to the frequency of consumption of DFF monthly was higher when students consume DFF more than 4 times monthly. The 12.7% of the population had between 3 or 4 CVRFs and consumed high quantities of DFF, preferably sold by street vendors near the university. This situation is worrying since the caloric and nutritional content is low and could generate a tendency to acquire cardiovascular pathologies in the medium term.

Obesity and cardio-metabolic risk factors in Ecuadorian university students. First report, 2014-2015

OBJECTIVE

Overweight and obesity are risk factors for developing cardiovascular disease. The objective of this study was to determine the prevalence of obesity and risk factors associated with metabolic syndrome and cardiovascular disease in university students.

METHODS

883 students from the Faculty of Medical Sciences of the Central University of Ecuador were included, who were surveyed with demographic data, smoking habits and physical activity. Body mass index, abdominal circumference and blood pressure were determined. Blood chemistry and lipid profile were performed. Central tendency and dispersion measures, average comparisons (Student's T) and Pearson's correlation were calculated to study quantitative variables and χ2 distributed statistic for the comparison of qualitative variables.

RESULTS

The prevalence of overweight and obesity was 25.5%. The body mass index was similar in both sexes (23.15 women / 23.57 men), waist circumference was higher in women. Men had higher than normal levels in blood pressure and elevated triglycerides while women had high cholesterol.

CONCLUSIONS

One of four students presents some degree of overweight or obesity and an important percentage of altered levels of plasma lipids and blood pressure. Blood glucose levels were found in normal ranges.

Prevalence of metabolic syndrome among university students: A systematic review

Introduction: Metabolic syndrome (MS) is defined as a set of conditions including high blood pressure, dyslipidemia, glucose intolerance and visceral obesity. In recent years, an increase of obesity in university students has been observed, although the accurate prevalence of MS is unknown.Objective: To determine the prevalence of MS in university students between January 2000 and January 2016.Materials and methods: A systematic review of studies published in the PubMed, LILACS, ScienceDirect, UpToDate, Imbiomed, SciELO and Google Scholar databases was performed. To ensure the highest number of papers, different combinations of words related to MS were used in Spanish, English, and Portuguese.Results: A total of 16 studies met the inclusion criteria. Students from different health, social and human sciences careers from America, Asia and Europe participated in said studies. The prevalence of MS ranged from 0 to 19.2% according to NCEP-ATP III.Conclusions: The prevalence of MS varies widely across studies. It is important to expand MS research, as this would allow designing specific interventions for high-risk groups in the university context.

Role of Platelet-Derived Microvesicles As Crosstalk Mediators in Atherothrombosis and Future Pharmacology Targets: A Link between Inflammation, Atherosclerosis, and Thrombosis

Reports in the last decade have suggested that the role of platelets in atherosclerosis and its thrombotic complications may be mediated, in part, by local secretion of platelet-derived microvesicles (pMVs), small cell blebs released during the platelet activation process. MVs are the most abundant cell-derived microvesicle subtype in the circulation. High concentrations of circulating MVs have been reported in patients with atherosclerosis, acute vascular syndromes, and/or diabetes mellitus, suggesting a potential correlation between the quantity of microvesicles and the clinical severity of the atherosclerotic disease. pMVs are considered to be biomarkers of disease but new information indicates that pMVs are also involved in signaling functions. pMVs evoke or promote haemostatic and inflammatory responses, neovascularization, cell survival, and apoptosis, processes involved in the pathophysiology of cardiovascular disease. This review is focused on the complex cross-talk between platelet-derived microvesicles, inflammatory cells and vascular elements and their relevance in the development of the atherosclerotic disease and its clinical outcomes, providing an updated state-of-the art of pMV involvement in atherothrombosis and pMV potential use as therapeutic agent influencing cardiovascular biomedicine in the future.

Inhibitory effects of Cyperus digitatus extract on human platelet function in vitro

The purpose of this research was to investigate the mechanisms of antiplatelet action of Cyperus digitatus. The antiplatelet action of C. digitatus was studied on platelet function: secretion, adhesion, aggregation, and sCD40L release. The platelet ATP secretion and aggregation were significantly inhibited by CDA (ethyl acetate extract) at 0.1 mg/ml and after the incubation of whole blood with CDA, the platelet coverage was inhibited by 96 ± 3% (p < 0.001). At the same concentration, CDA significantly decreased sCD40L levels. The mechanism of antiplatelet action of CDA could be by NF-κB inhibition and that is cAMP independent. In conclusion, C. digitatus extract may serve as a new source of antiplatelet agents for food and nutraceutical applications.

Prevalence of the metabolic syndrome and its individual components in Brazilian college students

AIMS AND OBJECTIVES

To identify the prevalence of the metabolic syndrome and its individual components in a population of college students at a public higher education institution in Fortaleza, Brazil.

BACKGROUND

Scientific evidence has demonstrated the ascent of the metabolic syndrome in the young population.

DESIGN

Cross-sectional study of 702 Brazilian college students between January-July 2011.

METHODS

Socio-demographic indicators, life habits and the components of the metabolic syndrome were assessed. anova statistical tests were used to associate gender with the metabolic syndrome components, and the chi-square test to associate the number of metabolic syndrome components with gender and body mass index.

RESULTS

High fasting venous glucose, triglyceride, total cholesterol and LDL-C levels were found in 12·3, 23·0, 9·7 and 5·9% of the sample, respectively. The prevalence of the metabolic syndrome amounted to 1·7%. Nevertheless, 30·4% of students manifested at least one and 12·4% at least two individual components. The prevalence of the metabolic syndrome was higher in men (58·3%) and in people who were overweight (33·3%) and obese (41·7%). It is important to implement public health policies to reduce college students' vulnerability to the metabolic syndrome.

CONCLUSIONS

Most college students who displayed ≥3 metabolic syndrome components were men and already indicated being overweight and/or obesity.

RELEVANCE TO CLINICAL PRACTICE

It is important that nurses assess the frequency of metabolic syndrome in college students as a predictor of cardiovascular health.

Relationship between Platelet PPARs, cAMP Levels, and P-Selectin Expression: Antiplatelet Activity of Natural Products

Platelets are no longer considered simply as cells participating in thrombosis. In atherosclerosis, platelets are regulators of multiple processes, with the recruitment of inflammatory cells towards the lesion sites, inflammatory mediators release, and regulation of endothelial function. The antiplatelet therapy has been used for a long time in an effort to prevent and treat cardiovascular diseases. However, limited efficacy in some patients, drug resistance, and side effects are limitations of current antiplatelet therapy. In this context, a large number of natural products (polyphenols, terpenoids, alkaloids, and fatty acids) have been reported with antiplatelet activity. In this sense, the present paper describes mechanisms of antiplatelet action of natural products on platelet P-selectin expression through cAMP levels and its role as peroxisome proliferator-activated receptors agonists.

Study of lipid profile in a population of university students

OBJECTIVE

To evaluate the lipid profile in a population of university students.

METHODS

Cross-sectional study with 702 students, of both genders enrolled in various courses at a public university in Fortaleza-CE. The demographic data and data on lifestyle habits were collected through a self-administered questionnaire. The blood collection was performed in a clinical laboratory.

RESULTS

Showed a predominantly young population, with a mean age of 21.5 years with more females (62.7%). High levels of triglycerides, total cholesterol and cholesterol associated with low density lipoprotein (LDL-c) were found in 23.0%, 9.7% and 5.9% of students, respectively. The cholesterol associated with high density lipoprotein (HDL-c) was at reduced values in 12.0% of subjects and was significantly associated with smoking (p=0.0231) and physical inactivity (p=0.0357).

CONCLUSION

Changes in lipid profile are present in the young population and intervention studies should be encouraged in order to reduce the prevalence of cardiovascular disease in adulthood.

Antioxidant and Antiplatelet Activities in Extracts from Green and Fully Ripe Tomato Fruits (Solanum lycopersicum) and Pomace from Industrial Tomato Processing

The consumption of fruits and vegetables is accepted to be one of the strategies to reduce risk factors for these diseases. The aim of this study was to examine potential relationships between the antioxidant and the antiplatelet activities in green mature and fully ripe (red) tomatoes and of lycopene-rich byproducts of tomato paste processing such as pomace. The total phenol content of tomato components was the highest in peels, pulp, and in the mucilaginous myxotesta covering the tomato seeds with values 36.9 ± 0.8, 33.3 ± 00.5, and 17.6 ± 0.9 mg GAE/100 g, respectively (P < 0.05). Tomato peels had the highest antioxidant activity, both, as measured by the FRAP (46.9 ± 0.9 μmol Fe⁺²/g, P < 0.05) and the DPPH assays (97.4 ± 0.2%, 1000 μg/mL, P < 0.05). Pomace extracts showed the highest antiplatelet activity induced by ADP, collagen, TRAP-6, and arachidonic acid. While the maturation stage of the tomato fruit affected the antioxidant effect, antiplatelet activity was independent of fruit ripeness. Finally, based on the present results, tomato and its byproducts may be considered as a valuable source of antioxidant and antiplatelet activities.

Platelets and atherogenesis: Platelet anti-aggregation activity and endothelial protection from tomatoes (Solanum lycopersicum L.)

In recent years, it has been shown that platelets are not only involved in the arterial thrombotic process, but also that they play an active role in the inflammatory process of atherogenesis from the beginning. The interaction between platelets and endothelial cells occurs in two manners: activated platelets unite with intact endothelial cells, or platelets in resting adhere to activated endothelium. In this context, inhibition of the platelet function (adhesion/aggregation) could contribute to the prevention of atherothrombosis, the leading cause of cardiovascular morbidity. This can be achieved with antiplatelet agents. However, at the public health level, the level of primary prevention, a healthy diet has also been shown to exert beneficial effects. Among those elements of a healthy diet, the consumption of tomatoes (Solanum lycopersicum L.) stands out for its effect on platelet anti-aggregation activity and endothelial protection, which may be beneficial for cardiovascular health. This article briefly discusses the involvement of platelets in atherogenesis and the possible mechanisms of action provided by tomatoes for platelet anti-aggregation activity and endothelial protection.

[Obesity and cardiovascular risk factors in adolescents. Association with cardiovascular risk factors in first degree relatives]

BACKGROUND AND OBJECTIVE

Obesity is a major concern in public health. The fact that most teenagers stop contacting the health system during this period of life prevents detection of this problem and its associated morbidity. The aim of this study is to measure the prevalence of obesity at 18. We also aimed to detect overweight, cardiovascular risk factors (CVRF) and association with CVRF in parents and siblings.

PATIENTS AND METHOD

The research includes 153 children followed up to 18 years old in a community health center. Measures of body mass index (BMI), waist perimeter, CVRF, and familiar history were taken.

RESULTS

The prevalence of obesity in our study group was 7.18%, (IC: 3.0-11.0), (6.25% male and 7.86% female). The prevalence of overweight was 18.3% (IC: 11.9-24.0), (26.56% male and 12.35% female). A familiy history of CVRF was found in 53.9% (IC: 46.1-61.9) of cases, including high blood pressure (25%), obesity (23.6%), dyslipemia (21.7%), and diabetes (7.2%). This finding was more prevalent in the obesity group (72.72%) than in those with overweight only (64.2%), or with normal weight (49.59%). A family history of obesity and diabetes in first-degree relatives was associated to obesity in the study group. Also, a family history of high blood pressure was associated to the presence of high blood pressure in this group.

CONCLUSIONS

In order to detect obesity, overweight, and associated complications in young adults, specific attention to children and siblings of persons who present risk factors is recommended. Those with high blood pressure, diabetes or obesity have the higher risk.