scholarly journals Gut Microbiome Alterations in Patients With Carotid Atherosclerosis

2021 ◽  
Vol 8 ◽  
Author(s):  
Jingfeng Chen ◽  
Qian Qin ◽  
Su Yan ◽  
Yang Yang ◽  
Hang Yan ◽  
...  

Carotid atherosclerosis (CAS) is a reflection of systemic atherosclerosis and the main pathological processes of cardiovascular disease (CVD), namely, carotid intima–media thickening, carotid plaque formation, and carotid stenosis. Accumulating evidence indicates that the gut microbiota plays an important role in CVD and gut–brain disorders, but the associations of the composition and metabolites of the gut microbiome with CAS have not been studied comprehensively. We performed a gut microbiome genome-wide association study in 31 patients with CAS and 51 healthy controls using whole-genome shotgun sequencing. We found that several risk factors (waist circumference, body mass index, diastolic blood pressure, systolic blood pressure, fasting blood glucose, glycated hemoglobin A1c, total cholesterol, triglyceride, and low-density lipoprotein cholesterol) and inflammatory markers (white blood cell count and absolute value of neutrophils) were significantly higher in the CAS group than in the control group. In addition, 21 species and 142 pathways were enriched in the CAS group, and 10 species and 1 pathway were enriched in the control group. Specifically, Bacteroides eggerthii, Escherichia coli, and Klebsiella pneumoniae were the most abundant species in the CAS group, whereas Parabacteroides unclassified, Prevotella copri, Bacteroides sp 3_1_19, and Haemophilus parainfluenzae were the most abundant species in the control group. Finally, we found that most gut microbes and microbial pathways that were enriched in the CAS group had significant positive correlations with clinical characteristics, whereas the microbes and pathways enriched in healthy controls had significant negative correlations with clinical characteristics excluding high-density lipoprotein cholesterol. In addition, the associations between gut microbes and some microbial pathways (short-chain fatty acid, lipopolysaccharide, and menaquinol biosynthesis) were identified. Our results indicate the existence of a cyclic pathway that elevates the circulating concentrations of trimethylamine-N-oxide in patients with CAS but reduces its concentrations in healthy controls.

2020 ◽  
Vol 48 (3) ◽  
pp. 242-248 ◽  
Author(s):  
Carolina Carvalho Mocarzel ◽  
Guillermo Coca Velarde ◽  
Roberto de Azevedo Antunes ◽  
Renato Augusto Moreira de Sá ◽  
Asim Kurjak

AbstractObjectiveTo compare the endocrine cord blood characteristics of offspring from obese mothers with those of offspring from healthy controls.MethodsCross-sectional case control study. Setting: University medical centers. Patient(s): Offspring from obese mothers (n = 41) and healthy controls (n = 31). Intervention(s): Cord blood withdrawal from neonates. Main outcome measure(s): Cord blood total cholesterol (TC), triglycerides (TGs), high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), blood glucose (GL) and insulin (Ins).Result(s)Fetal GL and TGs were reduced in the offspring of obese women when compared to those in the offspring of the controls. The mean cord blood GL level was 47.8 mg/dL standard deviation (SD 33.1) in the offspring of the obese group vs. 57.9 mg/dL (SD 12.5) in the offspring of the control group, and the mean cord blood TG level was 26.5 (SD 33.6) in the offspring of the obese group vs. 34.6 (SD 12.3) in the offspring of the control group. Maternal obesity was also associated with reduced levels of TC and HDL-C in the pregnant women.ConclusionThe observed results suggest that GL and TGs in the cord blood of the offspring of obese mothers were significantly lower than those in the offspring of the control group.


2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Brandon Stuwart Shaw ◽  
Stacey Turner ◽  
Ina Shaw

Background: Cardiovascular disease (CVD) exemplifies a major medical problem as it is the most considerable cause of morbidity and mortality. While sport conditioning specialists understand and differentiate the different benefits of resistance training (RT) subtypes on athletic performance, this distinction is less clear for health professionals when designing CVD risk reduction programs. Objectives: This study attempted to investigate and compare the effects of hypertrophy and muscular endurance RT on CVD risk in sedentary males. Methods: Sedentary male smokers were randomly assigned to either an eight-week hypertrophy RT group (HTG) (n = 15), muscular endurance RT groups (METG) (n = 15), or a non-exercising control group (CON) (n = 15) to assess their impact on smoking, blood pressure, cholesterol, and cardiorespiratory fitness (VO2max) variables associated with the four most prominent CVD risk factors. Data were analyzed using SPSS-25 software using a paired sample t-test and ANOVA. Results: Significant (P ≤ 0.05) improvements were found in three of the 15 measured variables in the HTG (resting mean arterial pressure (RMAP) (P = 0.024); total cholesterol (TC): HDL-C ratio (P = 0.009), and HDL-C: low-density lipoprotein cholesterol (LDL-C) ratio (P = 0.038), with a deleterious decrease in high-density lipoprotein cholesterol (HDL-C) (P = 0.027). In turn, significant improvements were found in the METG in 10 of the 15 measured variables, namely; cigarettes smoked per day (P = 0.037), resting systolic blood pressure (RSBP) (P = 0.002), resting diastolic blood pressure (RDBP) (P = 0.006), RMAP (P = 0.000), TC (P = 0.010), triglycerides (TG) (P = 0.010), LDL-C (P = 0.007), HDL-C: LDL-C (P = 0.018), non-HDL-C (n-HDL-C) (P = 0.010), and VO2max (P = 0.001), and a deleterious decrease in HDL-C (P = 0.026). Conclusions: While the oversimplification of RT design for CVD reduction has resulted in cardio-centric CVD training programs, this study demonstrates that some subtypes of RT (i.e. muscular endurance training) may prove more useful than others in reducing multiple CVD risk factors simultaneously.


Author(s):  
Maryam Hani Abduljalal ◽  
Nuha Abdulkadir Shareef ◽  
Sarmad Osama Alfeel

Leptin is a hormone secreted from adipose tissue, proved to be related to inflammatory, hemostatic, and metabolic factors, and thought to be involved in the development of hypertension. We aim to evaluate serum leptin levels and lipid profile in males with elevated blood pressure to be compared with healthy controls males of matched body mass index (BMI) and age. The present study were included 50 subject, 24 healthy controls males whose BMI (Mean±SD 27.6±4.9) as control group and 26 hypertensive males with essential hypertension whose BMI (Mean±SD 28.3±3.4), those two groups were aged and BMI matched Fasting serum leptin level, triglyceride (TG), total serum cholesterol, high density lipoprotein(HDL) and low density lipoprotein(LDL) were measured. Leptin was found to be significantly higher in the hypertensive males (group2) when compared with the control group (group1) (21.5±2.3ng/ml against 14.3±1.4 ng/ml, respectively; p0.03), while a very high significant difference in triglyceride, systolic and diastolic blood pressure (p 0.0001) and a significant difference in cholesterol was (p 0.01), LDL was (p0.01) and HDLwas (p0.05). The present study concluded that male patients with elevated blood pressure had significantly higher serum leptin level compared with healthy subjects of a same BMI. More over patients with hypertension had an unfavorable lipid profile.


2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Jun Zhao ◽  
Wei Lu ◽  
Junshan Li ◽  
Lei Liu ◽  
Xiumin Zhao

Objective. Neural cell adhesion molecule (NCAM), a glycoprotein widely distributed in the brain, has recently been shown to regulate neuroplasticity. However, the role of NCAM in vascular dementia (VaD) is still unclear. The purpose of this study is to determine whether NCAM is involved in the course of VaD. Methods. Continuous recruitment of VaD patients and control population to join this study. Doctors or nurses are responsible for collecting their clinical characteristics including age, gender, formal education, heart rate, supine systolic blood pressure, supine diastolic blood pressure, fasting glucose, high-density lipoprotein, and low-density lipoprotein. Each participant received the Montreal Cognitive Assessment (MoCA) scale after being enrolled in the group. At the same time, their peripheral blood was collected, and their serum NCAM levels were measured by enzyme-linked immunosorbent assay (ELISA). Results. 98 VaD patients and 83 age- and sex-matched controls were enrolled. There was no significant statistical difference between the VaD group and the control group in terms of the comparison of clinical characteristics ( p > 0.05 ). The MoCA score of VaD patients was significantly lower than that of the controls ( 27.9 ± 1.4 vs. 23.0 ± 2.1 points, p < 0.001 ). In addition, the circulating NCAM level of VaD patients was also significantly lower than that of controls ( 21.7 ± 3.8 vs. 17.6 ± 4.2  ng/mL, p < 0.001 ). The circulating NCAM level of VaD patients was significantly positively correlated with MoCA score ( r = 0.285 , p = 0.026 ). After adjusting for clinical characteristics, circulating NCAM levels are still an independent pathogenic factor of VaD (regression coefficient = 0.223 , p = 0.034 ). Conclusions. VaD patients have low circulating NCAM levels, which can be used as a potential predictor of VaD.


Nutrients ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2077
Author(s):  
Seong Jun Hong ◽  
Jinju Cho ◽  
Chang Guk Boo ◽  
Moon Yeon Youn ◽  
Jeong Hoon Pan ◽  
...  

This study investigated effects of patchouli essential oil (PEO) inhalation on metabolic parameters. First, to characterize aromatic compounds in PEO, solid-phase microextraction-gas chromatography/mass spectrometric detection was employed in which 19 aromatic compounds were identified. In GC-olfactometry analysis, linalool, α-patchoulene, and β-patchoulene were found to be the constituents exhibiting the highest similarity to the aromatic compounds in patchouli. In an animal experiment using Sprague Darley rats, groups with PEO inhalation had a reduced food intake compared to the control group. Additionally, body weight was lower in the obesity-induced animal model exposed to PEO inhalation than the group without PEO. However, we found no significant difference in organ weights between groups. In our serum analysis, high-density lipoprotein cholesterol was significantly higher in the PEO inhalation groups, while low-density lipoprotein cholesterol content was highest in the positive control group, suggesting that inhalation of the aromatic compounds present in patchouli may improve cholesterol profile. In addition, leptin levels were reduced in the groups treated with PEO inhalation, which explains the differences in food intake and body weight gains. Last, animal groups exposed to PEO inhalation showed a relatively lower systolic blood pressure which suggests that inhalation of PEO (or aromatic compounds therein) may assist in regulating blood pressure. Collectively, our data demonstrate that the inhalation of PEO influenced certain markers related to metabolic diseases, hence provide basic data for future research as to preventive/therapeutic applications of PEO as well as their aromatic constituents.


2020 ◽  
Vol 21 (3) ◽  
pp. 74-79
Author(s):  
Ahmed Elbaz ◽  
Said El-sheikh

Objective: To investigate the effect of antibiotics and/or probiotics on broiler performance, some serum metabolites, cecum microflora composition, and ileum histomorphology under the Egyptian conditions. Design: Randomized controlled experimental study. Animals: Two hundred forty 1-day-old Ross (308) chicks were reared till 35 days of age. Procedures: The birds were randomly allocated into four main groups: a control diet without additives (CON); probiotic (Lactobacillus acidophilus) supplemented diet (PRO); antibiotic (Avilamycin) supplemented diet (ANT) and a mix group (AP) that received antibiotic in the diet form 1 to 4 days of age and treated during the rest of the experimental period with probiotics. Results: Chickens fed on probiotic or antibiotic diets had linear improvement in live body weight (LBW) and feed conversion ratio (FCR) compared with the control group, while the best LBW and FCR were in the AP group. An improvement in the nutrient digestibility was observed in the probiotic added groups (PRO and AP). Serum cholesterol and low-density lipoprotein cholesterol contents decreased when antimicrobial (probiotic or antibiotic) supplementations were used, while there was an increase in high-density lipoprotein cholesterol contents, serum total protein, and albumin levels. Among all groups, cecum Clostridium perfringens and Escherichia coli counts decreased; however, there was an increase in Lactobacillus count compared to the control group. In probiotic supplemented groups (PRO and AP), a significant (P<0.05) improvement in ilea architecture. Conclusion and clinical relevance: Using probiotic after initial treatment with an antibiotic in broiler diets had a positive effect on broiler growth performance, gut health (improved cecum microbial populations and ileum histomorphology), and nutrient digestibility.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
N Shurkevich ◽  
A Vetoshkin ◽  
L Gapon ◽  
A Simonyan ◽  
V Kuznetsov

Abstract Introduction High prevalence of cardiovascular events at northern latitudes determines the necessity of studying mechanisms of formation and early diagnosis of atherosclerotic process. Purpose To determine the most unfavorable prognostic factors that provide the percentage of correct prediction and high accuracy in detection of atherosclerotic plaque (ASP) in common carotid arteries (CCA) in rotational shift workers in the Arctic. Methods Within 2010–2012 a study of 424 males aged 30–59 years at the medical unit “Gazprom dobycha Yamburg” (Yamburg settlement, 68°N) was performed. Patients were randomized into 2 groups according to blood pressure (BP). Gr.I included 294 people with BP more than 140/90 mmHg, arterial hypertension (AH) of 1,2 stage and Gr.II included 130 people with BP less than 140/90 mmHg. Groups did not differ in age (46.9±5.8 years, p=0.435); total work experience in the Arctic: 16.5±6.8 years (p=0.512) and rotational shiftwork duration: 12.5±4.6 years (p=0.597). Office BP was 149.4±13.3/97.1±7.3 mmHg in Gr.I and 123.4±7.5/80.5±5.5 mmHg in Gr.II. Ultrasound examination of carotid arteries with determination of presence or absence of ASP in CCA and estimation of stenosis using NASCET method were performed; ambulatory blood pressure monitoring was conducted; blood glucose levels, total cholesterol, high-density lipoprotein cholesterol, low density lipoprotein cholesterol were determined. Statistical analysis was carried out using R (v. 3.6.1) programming language for statistical data processing of R Studio application package (v. 1.2.1335). Results Signs of CCA atherosclerosis were revealed in 56% of patients with AH and in 25% of those without AH. According to multivariate analysis, three variables with the most significant set of predictors, associated with ASP in CCA with the percentage of correct prediction of 75.9% were selected by step-by-step method: diastolic BP24 (&lt;0.0001), glucose (0.0167) and cholesterol (0.0439). Based on the obtained model, it was concluded that 1 mmHg increase in diastolic BP24 increases the risk for developing ASP by 5.9%, Exp. (Beta) = 1.059, 1 mmol/l increase in glucose and cholesterol escalates the risk by 44.1% and 25.2%, respectively: Exp. (Beta) = 1.441 and Exp. (Beta) = 1.252. Conclusion The data obtained will improve accuracy for the early diagnosis of subclinical atherosclerosis of CCA, allow to prescribe lipid-lowering therapy timely and reduce the risk of adverse cardiovascular events in rotational shift workers in the Arctic. Funding Acknowledgement Type of funding source: None


2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Richard K. D. Ephraim ◽  
Patrick Adu ◽  
Edem Ake ◽  
Hope Agbodzakey ◽  
Prince Adoba ◽  
...  

Background.Abnormal lipid homeostasis in sickle cell disease (SCD) is characterized by defects in plasma and erythrocyte lipids and may increase the risk of cardiovascular disease. This study assessed the lipid profile and non-HDL cholesterol level of SCD patients.Methods.A hospital-based cross-sectional study was conducted in 50 SCD patients, in the steady state, aged 8–28 years, attending the SCD clinic, and 50 healthy volunteers between the ages of 8–38 years. Serum lipids were determined by enzymatic methods and non-HDL cholesterol calculated by this formula: non-HDL-C = TC-HDL-C.Results.Total cholesterol (TC) (p=0.001) and high-density lipoprotein cholesterol (HDL-C) (p<0.0001) were significantly decreased in cases compared to controls. The levels of non-HDL-C, low-density lipoprotein cholesterol (LDL-C), and triglyceride (TG) were similar among the participants. The levels of decrease in TC and HDL were associated with whether a patient was SCD-SS or SCD-SC. Systolic blood pressure and diastolic blood pressure were each significantly associated with increased VLDL [SBP,p=0.01, OR: 0.74 (CI: 0.6–0.93); DBP,p=0.023, OR: 1.45 (CI: 1.05–2.0)].Conclusion.Dyslipidemia is common among participants in this study. It was more pronounced in the SCD-SS than in SCD-SC. This dyslipidemia was associated with high VLDL as well as increased SBP and DBP.


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