Relationship between age and gender with cholesterol levels of Taro villagers

Introduction: COVID-19 is a disease caused by SARS-CoV-2 (Severe Acute Respiratory Coronavirus 2), an outbreak in the world in 2019 until now. High cholesterol levels correlate with increasing disease severity in SARS-CoV-2 infection because there is a surge of cases in Gianyar Regency, a district of Taro Village. This study aimed to examine the relationship between age and gender to cholesterol levels which are expected to become information for the people of Taro Village as a basis for health screening to prevent comorbid diseases that increase mortality in SARS-CoV-2 infection and increase awareness of the people of Taro Village to maintain health and implement a healthy lifestyle. Method: Capillary blood was taken and then checked for cholesterol levels using a standardized tool on 44 respondents. The cholesterol check was conducted in Gianyar Regency, precisely in Taro Village, Tegalalang District, and Bali. The data obtained will be analyzed using univariate analysis followed by bivariate analysis using the Spearman correlation test for variables of age and cholesterol levels. In contrast, for variables gender and cholesterol levels, the Mann-Whitney test is performed. Results: A total of 44 individual respondents in this study, the distribution of data, namely the age of the repondent is more in the 41-50 year age group, the number of female respondents is 33 or 75.0% of the total respondent, and 70.5% of the respondent or 31 have normal cholesterol levels. The results of the Spearman test on the variables of age and cholesterol levels obtained a P value>0, 05, and the results of the Mann Withney test on the variables gender and cholesterol levels obtained a P value>0, 05. Conclusion: Most taro villagers have normal cholesterol levels obtained as many as 31 people, or 70.5% of the total respondent. It may be influenced by the work factor of taro villagers who work a lot in the agriculture and plantation sectors. Based on the study results, there is also no significant relationship between age and gender with the cholesterol levels of Taro Villagers. However, high cholesterol levels were only found in females as many as five people.

Mathematical Models for Cholesterol Metabolism and Transport

Cholesterol is an essential component of eukaryotic cellular membranes. It is also an important precursor for making other molecules needed by the body. Cholesterol homeostasis plays an essential role in human health. Having high cholesterol can increase the chances of getting heart disease. As a result of the risks associated with high cholesterol, it is imperative that studies are conducted to determine the best course of action to reduce whole body cholesterol levels. Mathematical models can provide direction on this. By examining existing models, the suitable reactions or processes for drug targeting to lower whole-body cholesterol can be determined. This paper examines existing models in the literature that, in total, cover most of the processes involving cholesterol metabolism and transport, including: the absorption of cholesterol in the intestine; the cholesterol biosynthesis in the liver; the storage and transport of cholesterol between the intestine, the liver, blood vessels, and peripheral cells. The findings presented in these models will be discussed for potential combination to form a comprehensive model of cholesterol within the entire body, which is then taken as an in-silico patient for identifying drug targets, screening drugs, and designing intervention strategies to regulate cholesterol levels in the human body.

Effects of short- and long-term treatments of sardine (Sardina pilchardus) protein hydrolysates on blood lipid concentrations and antioxidant status, in rats fed cholesterol-enriched diets

Hypercholesterolemia is a major risk factor of cardiovascular diseases (CVD). A limited number of experimental studies have shown that sardine protein hydrolysates (SPH) could be a very useful natural compound to prevent hy-percholesterolemia by both improving the lipoprotein profile and modula-ting oxidative stress. In the present study, the effect of short and long term treatments with SPH were examined on serum lipid contents, lipid peroxida-tion and antioxidant enzymes activities in rats fed cholesterol-enriched diet. At day 0, rats were divided into five groups. The group of day 0 was the stan-dard group, and the four remaining groups were divided into two parts of two groups each consuming for 14 or 28 days an hypercholesterolemic diet, and treated (HC-SPH) or not (HC) by gavage with SPH. Compared with day 0, serum TC contents were increased at day 14 and remained unchanged at day 28 in HC-SPH group. These values were decreased in HC-SPH versus HC. Liver and heart TBARS concentrations were increased at day 14 then diminished at day 28 in HC-SPH group. Liver and heart SOD and CAT activities were decrea-sed at short term then remained unchanged at long term in HC-SPH group. In addition, these activities were enhanced in HC-SPH versus HC. In conclusion, these results indicate the potential effects of short and long term treatments of SPH to improved cholesterolemia and reduced radical attack in rats fed high-cholesterol diets.

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Analysis of Serum Cholesterol, Statins and Atherosclerotic Plaque in Ruptured and Unruptured Intracranial Aneurysm

Introduction Intracranial aneurysm (IA) is a major healthcare concern. The use of statin to reduce serum cholesterol has shown evidence to reduce cardiovascular risk in various diseases, but the impact on IA has not been described. This study aims to determine whether statin use, and serum cholesterol levels interfere with outcomes after IA event. Methods A cohort of patients with IA was analyzed. Patients social and demographics data were collected. Modified Rankin scale (mRS) score after 6 months of follow-up was the endpoint. The data regarding statins use, presence or not of atherosclerotic plaque in radiological images and serum cholesterol of 35 patients were included in our study. Linear regression models were used to determine the influence of those 6 variables in the clinical outcome. Results The prevalence of atherosclerotic plaque, high cholesterol and use of statins was 34.3%, 48.5%, and 14.2%, respectively. Statins and serum cholesterol did not impact the overall outcome, measured by mRS after 6 months (p > 0.05), but did show different tendencies when separated by IA rupture status. Serum cholesterol shows an important association with rupture of aneurysm (p = 0.0382). High cholesterol and use of statins show a tendency for worse outcome with ruptured aneurysm, and the opposite is true for unruptured aneurysm. The presence of atherosclerotic plaques was not related with worse outcomes. Conclusions Multiple and opposite mechanisms might be involved in the pathophysiology of IA. Ruptured aneurysms are associated with higher levels of serum cholesterol. Serum cholesterol and statins use were not correlated with worse outcomes, but further studies are important to clarify these relationships.

Antihypercholesterolemic and Antioxidant Effects of Blumea balsamifera L. Leaf Extracts to Maintain Luteinizing Hormone Secretion in Rats Induced by High-Cholesterol Diets

BACKGROUND: The discovery of herbal ingredients for antihypercholesterolemic and to improve male reproductive function is very necessary due to high-cholesterol diet factors. Blumea balsamifera leaf extract (BBLE) is known to be able to increase the number and diameter of Leydig cells in rats given high-fat feed. This study was to conducted to determine the levels of total cholesterol, body weight, plasma malondialdehyde (MDA), Superoxide Dismutase (SOD), Luteinizing Hormone (LH) in high-cholesterol-fed male rats provided with BBLE.METHODS: This research utilized a randomized post-test only control group. Ethanol was used to extract the BBLE, which was then evaporated. For 21 days, 16 Wistar rats were given a high-cholesterol diet. To determine the effect of BBLE on the high-cholesterol diet, the samples were divided into two groups (control and BBLE group) on day 22. The treatments lasted 30 days. SOD, plasma MDA, LH, and total cholesterol were measured.RESULTS: The results showed that the SOD and LH parameters were significantly higher in the treatment of BBLE compared to the control group (p<0.05). The parameters of total cholesterol levels, bodyweight, and MDA of rats given BBLE were significantly lower than those of the control group (p<0.05).CONCLUSION: Our findings highlight that BBLE has antihypercholesterolemic and antioxidant effects. The BBLE also has potential to be used as a therapy to maintain male reproductive function because it has a positive effect on the hypothalamic-pituitary axis through increasing LH secretion.KEYWORDS: Malondialdehyde, Superoxide dismutase, Luteinizing hormone, Blumea balsamifera extract, High-cholesterol diet

NLRP3 Inflammasome Activation Controls Vascular Smooth Muscle Cells Phenotypic Switch in Atherosclerosis

(1) Background: Monocytes and nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome orchestrate lipid-driven amplification of vascular inflammation promoting the disruption of the fibrous cap. The components of the NLRP3 inflammasome are expressed in macrophages and foam cells within human carotid atherosclerotic plaques and VSMCs in hypertension. Whether monocytes and NLRP3 inflammasome activation are direct triggers of VSMC phenotypic switch and plaque disruption need to be investigated. (2) Methods: The direct effect of oxLDL-activated monocytes in VSMCs co-cultured system was demonstrated via flow cytometry, qPCR, ELISA, caspase 1, and pyroptosis assay. Aortic roots of VSMCs lineage tracing mice fed normal or high cholesterol diet and human atherosclerotic plaques were used for immunofluorescence quantification of NLRP3 inflammasome activation/VSMCs phenotypic switch. (3) Results: OxLDL-activated monocytes reduced α-SMA, SM22α, Oct-4, and upregulation of KLF-4 and macrophage markers MAC2, F4/80 and CD68 expression as well as caspase 1 activation, IL-1β secretion, and pyroptosis in VSMCs. Increased caspase 1 and IL-1β in phenotypically modified VSMCs was detected in the aortic roots of VSMCs lineage tracing mice fed high cholesterol diet and in human atherosclerotic plaques from carotid artery disease patients who experienced a stroke. (4) Conclusions: Taken together, these results provide evidence that monocyte promote VSMC phenotypic switch through VSMC NLRP3 inflammasome activation with a likely detrimental role in atherosclerotic plaque stability in human atherosclerosis.

Combined triple treatment of fibrin amyloid microclots and platelet pathology in individuals with Long COVID/ Post-Acute Sequelae of COVID-19 (PASC) can resolve their persistent symptoms

We recognise that fibrin(ogen) amyloid microclots and platelet hyperactivation, that we have previously observed in COVID-19 and Long COVID/Post-Acute Sequelae of COVID-19 (PASC) patients, might form a suitable set of foci for the clinical treatment of the symptoms of long COVID/PASC. We first report on the comorbidities and symptoms found in a cohort of 845 South African Long COVID/PASC patients who filled in the South African Long COVID/PASC registry, of which hypertension and high cholesterol levels (dyslipidaemia) were the most important comorbidities. The gender balance (70% female) and the most commonly reported Long COVID/PASC symptoms (fatigue, brain fog, loss of concentration and forgetfulness, shortness of breath, as well as joint and muscle pains) were comparable to those reported elsewhere. This suggests that our sample was not at all atypical. Using a previously published scoring system for fibrin amyloid microclots and platelet pathology, we analysed blood samples from 70 patients, and report the presence of significant fibrin amyloid microclots and platelet pathology in all cases; these were associated with Long COVID/PASC symptoms that persisted after the recovery from acute COVID-19. A subset of 24 patients was treated with one month of dual antiplatelet therapy (DAPT) (Clopidogrel 75mg/Aspirin 75mg) once a day, as well as a direct oral anticoagulant (DOAC) (Apixiban) 5 mg twice a day. A proton pump inhibitor (PPI) pantoprazole 40 mg/day was also prescribed for gastric protection. Such a regime must only be followed under strict and qualified medical guidance to obviate any dangers, especially haemorrhagic bleeding, and of the therapy as a whole. Thromboelastography (TEG®) was used to assist in determining their clotting status. Each of the 24 treated cases reported that their main symptoms were resolved and fatigue as the main symptom was relieved, and this was also reflected in a decrease of both the fibrin amyloid microclots and platelet pathology scores. Nine patients were genotyped for genetic variation in homocysteine metabolism implicated in hypertension, a common COVID-19 co-morbidity reported in both patients found to be homozygous for the risk-associated MTHFR 677 T-allele. Fibrin amyloid microclots that block capillaries and inhibit the transport of O2 to tissues, accompanied by platelet hyperactivation, provide a ready explanation for the symptoms of Long COVID/PASC. The removal and reversal of these underlying epitheliopathies underlying this provide an important treatment option that seems to be highly efficacious, and warrants controlled clinical studies.