Benefits and Implications of Resveratrol Supplementation on Microbiota Modulations: A Systematic Review of the Literature

Abstract: Resveratrol is a polyphenol that has been shown to possess many applications in different fields of medicine. This systematic review has drawn attention to the axis between resveratrol and human microbiota, which plays a key role in maintaining an adequate immune response that can lead to different diseases when compromised. Resveratrol can also be an asset in new technologies,such as gene therapy. PubMed, Cochrane Library, Scopus, Web of Science, and Google Scholar were searched to find papers that matched our topic dating from 1 January 2017 up to 18 January 2022, with English‐language restriction using the following Boolean keywords: (“resveratrol” AND “microbio*”). Eighteen studies were included as relevant papers matching the purpose of our investigation. Immune response, prevention of thrombotic complications, microbiota, gene therapy, and bone regeneration were retrieved as the main topics. The analyzed studies mostly involved resveratrol supplementation and its effects on human microbiota by trials in vitro, in vivo, and ex vivo. The beneficial activity of resveratrol is evident by analyzing the changes in the host’s genetic expression and the gastrointestinal microbial community with its administration. The possibility of identifying individual microbial families may allow to tailor therapeutic plans with targeted polyphenolic diets when associated with microbial dysbiosis, such as inflammatory diseases of the gastrointestinal tract, degenerative diseases, tumors, obesity, diabetes, bone tissue regeneration, and metabolic syndrome

CORRELATION OF LIPOPROTEIN(a) AND CORONARY ARTERY DISEASES

INTRODUCTION: Cardiovascular diseases (CVD) continue to be one of the leading causes of mortality worldwide. While factors such as diabetes, sedentariness, psychostress, genetic predisposition, hypertension, smoking, and hyperlipidemia are well-known in the etiology of atherosclerosis (Ath) of coronary arteries. Recent studies have also identified high concentrations of lipoproteins (a) [Lp(a)] as a risk factor. In fact, high concentrations of Lp(a) above 30mg/dl (reference value-30mg/dl) have been found to be a risk factor for Ath, leading experts to develop medications aimed at reducing Lp(a) concentrations and preventing atherosclerotic manifestations. The European Atherosclerosis Society has also released clinical guidelines for testing and treating high concentrations of Lp(a) as part of the global assessment of cardiovascular risk. THE GOAL OF THE STUDY: The goal of this study is to investigate the concentration of Lp(a) in patients with coronary disease and its connection to the presentation of atherosclerosis of the coronary arteries in patients with CVD compared to a control group of healthy individuals. Through this study, we hope to gain a better understanding of the role of Lp(a) in CVD and its potential as a target for prevention and treatment. By identifying and addressing risk factors like high Lp(a) concentrations, we can work towards reducing the global burden of CVD and improving health outcomes for individuals around the world. THE AIM OF THE STUDY: The aim of this study is to determine the concentration of lipoprotein(a) in patients with coronary disease, its connectivity and role in the presentation of atherosclerosis of the coronary arteries in patients with CVD compared to the control group of healthy individuals. MATERIAL AND METHODS: As working material, the blood taken from the vein of patients with coronary disease was used - N0=80, (with an identical average age of 55.70±6.00 years old, of which 35 were female while 45 were male. In the study, there was also a control group: N0=80 healthy volunteers (45 were male and 35 female) with the same age as the patients. Blood for analysis was taken at 8 o'clock in the morning, at room temperature of 19-24°C, every three months in a period of 12 months. Echocardiography and EKG were also performed on all the patients with Toshiba SSH-140A machine, color Doppler probe 3.7Hz, sectorial type, taking into account as key parameters the thickness of the back wall of the left ventricle and the thickness of-Left ventricular internal diameter end diastole (LVPVd) and interventricular septal end diastole (IVSd>12 mm). Together with the examination of Lp(a) concentrations, the lipid profile was also analyzed. The analyzes were done at the Clinical Laboratory Institute at the University Clinical Center of the Faculty of Medicine – Skopje, North Macedonia. STATISTICAL PROCESSING OF THE MATERIAL: From the statistical methods, arithmetic mean value, standard deviation X±SD were used. The comparative statistics of the lipid parameters between the analyzed groups were analyzed with students ‘t’ dependent and independent samples according to the Mann-Whitney U-test and Wilcoxon - test. The results of the lipid fractions will be shown tabularly (see table 3) with the statistical program SPSS V26. RESULTS: The obtained values of lipids (Col.Total, TG, HDL-ch, LDL-ch) and lipoprotein (a) in both groups are presented with mean values and standard deviation X-SD. Due to the fact that in the obtained results of Lp(a) in both sexes, in patients with coronary disease, we did not notice any significant difference, we will present them as common for both groups, with CVD with maximum values of 78.00-16,00 mg/dl while in the control group =15.20-4.30 mg/dl, with a statistically significant difference with p<0.000. The same difference was found from the obtained results of lipid concentrations between the two groups with p <0.0001 (as presented in the tables below). CONCLUSION: The results obtained in the paper proved that high concentrations of Lp(a) > 30 mg/dl are risk factors for the occurrence of Ath of the coronary arteries and that these patients are at a 5-8 times higher risk for the development of Ath of coronary arteries, compared to individuals with normal Lp(a) values, therefore the treatment of high concentrations of Lp(a) should be started at the beginning of their appearance. In conclusion, we can suggest that the adequate treatment of high Lp(a) concentrations and the balancing of the lipid profile can apparently affect the prevention of atherosclerotic processes of the coronary arteries, therefore we prefer that in individuals with a history of CAD and those with coronary disease, the examination of Lp(a) and lipid profile should be one of the initial examinations during the management of patients with CAD

Frequency of Gastrointestinal Diseases in Patients with End-Stage Renal Disease Treated with Long Term Dialysis

Background: Gastrointestinal complications are frequent in patients with renal disease and are responsible for substantial morbidity and mortality among these patients in developing countries. Many times, these patients are subjected to endoscopic evaluation and mucosal biopsies are taken for definitive diagnosis. Long before the routine uses of dialysis, patients dying of uremia were found to have a high incidence of gastrointestinal abnormalities (1). Matherials and methods: The survey included 240 persons; 120 of them were dialysis patients, while the remaining 120 were healthy individuals who served as a control group. 54 (45%) of the patients with hemodialysis were females while 66 (55%) of them were males with mean age: 58.20 ± 18.00 years. These patients had been in dialysis for more than 12 years at the Clinic for Nephrology in Skopje and the Clinical Hospital in Tetovo. Results: Gastrointestinal complications were present in 20 (37.0%) out of 54 females while 26 (39.4%) out of 66 males presented with duodenal bulbar ulcers. 84 patients [(females-38/54 (70.4%) and males-46/66 (85.2%)] of the total number of 120 examined patients were found to have chronic gastritis. In conclusion, we found that the incidence of PUD was more than 10 times higher in CKD patients than in those without CKD over a 3-year period between 2008-2010. CKD patients receiving HD, NSAID, or clopidogrel had an increased risk of PUD, compared to CKD patients not receiving these treatments

Apolipoprotein c-iii (apo-c3) Metabolism in Patients with End Stage Renal Disease Treated with Long Term Hemodialysis.

Background: End Stage Renal disease (ESRD) as it was historically termed is a term that encompasses all degrees of decreased renal function, from damaged–at risk through mild, moderate, and severe chronic kidney failure. ESRD is a worldwide public health problem. In the United States, there is a rising incidence and prevalence of kidney failure, with poor outcomes and high cost (see Epidemiology). Material and Methods: The blood sample for routine analysis (lipidogram) and specific analysis was taken at 08o'clock in the morning with the room temperature that variated from 19 to 24°C, before the hemodialysis session, minimum 12 hours of fasting - with tendency to avoid the absorption effect of food by the intestine as well as avoid absorption of lipids and formation of chilomicrones. In all samples regardless of their group, the concentration of ApoC-II and lipids were analyzed in a period of 12 months in a period of 12 months (the measurements were made every three months, it means we totally made 3 measurements in 9 months). Results: The results from patients and controlling group for Apo-C3 and lipid profile (ChT, TG, HDL-ch, LDL-ch) are given in table number 3. A significant statistical difference with p<0.0001 is found from the results of the lipidic profile and ApoC-III of patients with ESRD treated with HD compared with the results of the controlling group for the same parameters. Conclusion: In this study patients with ESRD treated with HD have high parameters of ApoC-III, TG, LDL-ch but low concentrations of HDL-ch due to impaired catabolism of apolipoproteins in this specific group of patients. In all patients symptoms of CDV (myocardial infarction, angina pectoris, ischemia), acute coronary syndrome were noticed