Traditional Chinese medication Tongxinluo dose-dependently enhances stability of vulnerable plaques: a comparison with a high-dose simvastatin therapy

2009 ◽  
Vol 297 (6) ◽  
pp. H2004-H2014 ◽  
Author(s):  
Lei Zhang ◽  
Yan Liu ◽  
Xiao Ting Lu ◽  
Yi Ling Wu ◽  
Cheng Zhang ◽  
...  

This study was carried out to test the hypothesis that Tongxinluo (TXL) as a Chinese herbal medicine enhances stability of vulnerable plaque dose dependently via lipid-lowering and anti-inflammation effects, similar to a high-dose simvastatin therapy. After abdominal aortic balloon injury, 75 rabbits were fed a 1% cholesterol diet for 10 wk and were then divided into five groups for 8-wk treatment: control group, low-dose TXL group, moderate-dose TXL group, high-dose TXL group, and high-dose simvastatin group. At the end of week 16, an adenovirus containing p53 was injected into the abdominal aortic plaques. Two weeks later, plaque rupture was induced by pharmacological triggering. The incidence of plaque rupture in all treatment groups (14.3%, 7.1%, 7.7%, and 7.1%) was significantly lower than that in control group (73.3%; P > 0.01). TXL dose-dependently lowered serum lipid levels and inhibited systemic inflammation. Corrected acoustic intensity and fibrous cap thickness of the aortic plaques were significantly increased, whereas plaque area, plaque burden, vulnerable index, and expression of oxidized low-density lipoprotein (ox-LDL) receptor 1, matrix metalloproteinase 1 (MMP-1), MMP-3, tissue inhibitor of MMP 1, and NF-κB in plaques were markedly reduced in all treatment groups when compared with the control group. Similar to high-dose simvastatin group, high-dose TXL group exhibited a low serum level of low-density lipoprotein cholesterol and ox-LDL, a low expression level of systemic and local inflammatory factors and a low plaque vulnerability index, with no differences in the incidence of plaque rupture among all treatment groups. TXL dose-dependently enhances the stability of vulnerable plaques and prevents plaques from rupture. Simvastatin and TXL offer similar protection in terms of lipid-lowering, anti-inflammation, and antioxidation effects.

Dyslipidemia is a metabolic disorder that is characterized with an elevation in the cholesterol serum levels that can be treated with various hypolipidemic drugs like rosuvastatin. The present study was undertaken to determine and evaluate the hypolipidemic effect of milk thistle seeds extract in comparison with rosuvastatin and the combination of both for the treatment of dyslipidemia in rats. Also its effect on blood glucose levels on experimentally induced dyslipidemic rats. In vivo studies were conducted on wister albino laboratory rats, in which 49 rats were induced to be dyslipidemic by a daily intragastric administration of cholesterol (2 g/kg). The induction of dyslipidemia was evaluated by comparing these rats with a negative control group that was composed of 10 healthy rats. Then, after one month dyslipidemia was induced in 49 rats that were divided into 6 groups, as the following; positive control group (n=9) received cholesterol (2 g/kg) for another one month, and the other five groups each of 8 rats continued to receive cholesterol (2 g/kg) for one month along with therapy as; rosuvastatin low dose (RL) group received 10 mg/kg, rosuvastatin high dose (RH) group received 20 mg/kg, milk thistle (MT) group received 7.15 mg/kg, (RL+MT) group received a combination of 10 mg/kg of rosuvastatin and 7.15 mg/kg of milk thistle, and (RH+MT) group received a combination of 20 mg/kg of rosuvastatin and 7.15 mg/kg of milk thistle. The statistical results of biochemical analysis showed that all the studied therapeutic protocols whether given alone; RL, RH, and MT or in a combination; RL+MT and RH+MT led to a significant (p≤0.05) hypolipidemic effect that reduced the total cholesterol (TC), triglyceride (TG), low density lipoprotein (LDL) and very low density lipoprotein (VLDL) and increased the high density lipoprotein (HDL) cholesterol levels. In conclusion, all therapeutic protocols were effective in treating dyslipidemia, as they all reduced the TC, TG, LDL, and VLDL, and increased the HDL cholesterol significantly (p≤0.05). Furthermore, we found that milk thistle can be used in the management of dyslipidemia, as it has a hypolipidemic effect. Also, the addition of milk thistle to rosuvastatin therapy reduced the risk of developing diabetes mellitus (DM), as it has a glucose modulating activity either when it was given alone or in combination with rosuvastatin. Moreover, the combination of milk thistle and rosuvastatin was of a great benefit, as it gave an intensive goal of therapy than each one alone in altering all lipid profile parameters.


2020 ◽  
Vol 18 ◽  
Author(s):  
Xiaohan Xu ◽  
Meng Chai ◽  
Yujing Cheng ◽  
Pingan Peng ◽  
Xiaoli Liu ◽  
...  

Aims: To explore early intensive lipid-lowering therapy in patients with non-ST-segment elevation acute coronary syndrome (NSTE-ACS). Background: Lowering low-density lipoprotein cholesterol (LDL-C) levels can reduce cardiovascular morbidity and mortality in patients with atherosclerotic cardiovascular disease. Due to many reasons, the need for early intensive lipid-lowering therapy is far from being met in Chinese NSTE-ACS patients at high-risk of recurrent ischaemic events. Objective: To evaluate the feasibility, safety and efficacy of starting evolocumab in hospital to lower LDL-C levels in Chinese patients with NSTE-ACS. Methods: In this prospective cohort study initiated by researchers, 334 consecutive patients with NSTE-ACS who had sub-standard LDL-C levels (LDL-C ≥2.3 mmol/L after regular oral statin treatment for at least 4 weeks; or LDL-C ≥3.2 mmol/L without regular oral statin treatment) were included. Patients who agreed to treatment with evolocumab (140 mg subcutaneously every 2 weeks, initiated in hospital and used for 12 weeks after discharge) were enrolled in the evolocumab group (n=96) and others in the control group (n=238). All enrolled patients received regular statin treatment (atorvastatin 20 mg/day or rosuvastatin 10 mg/day; doses unchanged throughout the study).The primary endpoint was the change in LDL-C levels from baseline to week 12. Results: Most patients (67.1%) had not received regular statin treatment before. In the evolocumab group, LDL-C levels decreased significantly at week 4 and remained stable at week 8 and 12 (all p<0.001). At week 12, the LDL-C percentage change from baseline in the evolocumab group was -79.2±12.7% (from an average of 3.7 to 0.7 mmol/L), while in the control group it was -37.4±15.4% (from an average of 3.3 to 2.0 mmol/L). The mean difference between these 2 groups was -41.8% (95% CI -45.0 to -38.5%; p<0.001). At week 12, the proportions of patients with LDL-C levels <1.8 mmol/L and 1.4 mmol/L in the evolocumab group were significantly higher than in the control group (96.8 vs 36.1%; 90.6 vs 7.1%; both p<0.001). The incidence of adverse events and cardiovascular events was similar in both groups. Conclusions: In this prospective cohort study we evaluated the early initiation of evolocumab in NSTE-ACS patients in China. Evolocumab combined with statins significantly lowered LDL-C levels and increased the probability of achieving recommended LDL-C levels, with satisfactory safety and well tolerance.


2017 ◽  
Vol 9 (3) ◽  
pp. 315-320 ◽  
Author(s):  
Chidozie N. OKOYE ◽  
Samuel O. EKERE ◽  
Onyinyechukwu A. AGINA ◽  
Ikechukwu J. UDEANI ◽  
Chukwunonso K. EZEASOR

The present study evaluated the effect of whole egg consumption on the liver, testes, cauda epididymal sperm reserve and lipid profile of male rats. These evaluations were carried out on adult twenty (20) male albino rats, which were randomly selected into four groups of 5 rats each, designated groups A, B, C and D. Group A was the control group and received only equivalent volume of distilled water, while groups B, C and D received 0.25mg/kg, 0.5mg/kg; and 1.0mg/kg body weight of the quail egg respectively. Standard procedures were carried out in the tissue processing, cauda epididymal sperm reserve and in lipid profile determinations. On days 35 and 49, the mean serum total cholesterol value of group D was significantly lower than that of the control group. On day 35, the mean serum low density lipoprotein and high density lipoprotein (LDL and HDL cholesterol) values of all the treatment groups were significantly lower and higher than that of the control group, respectively. However, on days 49 and 63, the mean serum very low density lipoprotein (VLDL cholesterol) and triglyceride values of all the treatment groups were significantly higher than that of the control group. A significant increase in cadual epididymal sperm count (CESR) was recorded on day 63 at the mid and high doses. No obvious pathological lesions were observed in the histomorphology of the testes and liver when compared to the control. Therefore, whole quail egg consumption caused an increase in serum triglyceride and very low density lipoprotein concentration, and also improved fertility. In other words, prolonged consumption of quail egg should be done with caution as it may predispose one to cardiovascular disease.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
A A Momtazi-Borojeni ◽  
M Banach ◽  
M Majeed ◽  
A Sahebkar

Abstract Background and purpose The present study was aimed to evaluate lipid-lowering and anti-atherogenic effect of an intravenous (IV) curcumin in the rabbit fed high cholesterol diet (HCD). Methods New Zealand white male rabbits (4–6 months old, n=25, weight 2.286±0.256 kg)were fed on a normal chow enriched with 0.5% (w/w) cholesterol for 5 weeks. Atherosclerotic rabbits were randomly divided into three group, including a control group receiving intravenous (IV) injection of saline buffer, two treatment groups receiving IV injection of curcumin at two different dosages, 1and 10 mg/kg/week, for 4 weeks. Blood samples were collected from fasted rabbits at pre- (week 5) and post-treatment (week 11) points for analysis of serum lipid levels, including low-density lipoprotein cholesterol (LDL-c), high-density lipoprotein cholesterol (HDL-c), triglyceride (TG), and total cholesterol (TC). Aortic arch atherosclerotic lesions were assessed using hematoxylin and eosin (H&E) staining. Results To evaluate curcumin's effects on the hyperlipidemic states and atherosclerosis plaque, HCD-fed rabbits were weekly treated with the injectable curcumin at the low (1mg/kg/week) and high (10 mg/kg/week) doses by 4 weeks. At week 4 in compared with the control group, low-dose curcumin could reduce serum levels of LDL-c, HDL-c, TG, and TC by −6.22% ±1.77, −35.24% ±12.49, −29.84% ±10.14, −14.19% ±5.19, respectively. In the case of high-dose curcumin, serum levels of LDL-c, HDL-c, TG, and TC were changed by −44.36%±3.24, 14.05% ±6.39, −25.92% ±5.57, −56.59% ±10.22, respectively, when compared with the control group at week 4. Low-dose curcumin after 4 weeks' treatment could reduce serum levels LDL-c, HDL-c, TG, and TC up to 103±28 mg/dL, 18.33±4.66 mg/dL, 97.5±31 mg/dL, and 356.5±19.5 mg/dL, respectively, when compared with the base line levels (week 0). High-dose curcumin after 4 weeks' treatment could decrease serum levels of LDL-c, HDL-c, TG, HDL-c, and TC up to 207±17.04 mg/dL, 15.5±0.5 mg/dL, 333±40 mg/dL, and 514.5±22.23 mg/dL, respectively (Figure). H&E staining declared that atherosclerotic lesion grades were significantly lower in the curcumin-treated groups than the control group. Changes of lipids in rabbits on curcumin Conclusions The injectable curcumin at the low (1mg/kg) and high (10 mg/kg) could significantly improve dyslipidemia and alleviate atherosclerotic lesion in HCD-induced atherosclerotic rabbits.


2003 ◽  
Vol 284 (2) ◽  
pp. R550-R557 ◽  
Author(s):  
Roy D. Goldfarb ◽  
Thomas S. Parker ◽  
Daniel M. Levine ◽  
Dana Glock ◽  
Imran Akhter ◽  
...  

Lipoprotein phospholipid (PL) plays a major role in neutralization of endotoxin. This study tested the hypothesis that prophylactic administration of a PL-enriched emulsion (PRE), which augments PL content of serum lipoproteins and neutralizes endotoxin in vitro, would preserve cardiovascular function and improve survival in porcine septic peritonitis. A control group was compared with low-, mid-, and high-dose treatment groups that received PRE by primed continuous infusion for 48 h. A fibrin clot containing live Escherichia coli 0111.B4 was implanted intraperitoneally 30 min after the priming dose. Survival increased in a dose-dependent manner and was correlated with serum PL. Infused PL was associated with high-density lipoprotein in the low-dose group and all serum lipoproteins at higher doses. Treatment significantly lowered serum endotoxin and tumor necrosis factor (TNF)-α, preserved cardiac output and ejection fraction, and attenuated increases in systemic and pulmonary vascular resistances. This study demonstrated that augmentation of lipoprotein PL via administration of PRE improved survival and offered a novel therapeutic approach to sepsis.


2002 ◽  
Vol 103 (6) ◽  
pp. 587-594 ◽  
Author(s):  
Zhiping HUANG ◽  
Akihiro INAZU ◽  
Atsushi NOHARA ◽  
Toshinori HIGASHIKATA ◽  
Hiroshi MABUCHI

Cholesteryl ester transfer protein (CETP) is a major determinant of plasma levels of high-density lipoprotein-cholesterol (HDL-C) in humans. The anti-atherogenic effect of lowering CETP levels is dependent not only on HDL-C levels but also on a metabolic background of increased low-density lipoprotein or very-low-density lipoprotein. Here we investigated the effects of JTT-705, a chemical inhibitor of CETP, on the development of atherosclerosis in Japanese white rabbits fed on a high cholesterol diet. After 4 weeks on a diet of 0.25% cholesterol-containing chow, 100mg/kg (low dose) or 300mg/kg (high dose) JTT-705 was given, and the animals were monitored at weeks 0, 4, 8 and 12. Aortic atherosclerotic lesions were determined at the end of this period. JTT-705 induced a significant increase in HDL-C in the high-dose group [from 21±3 to 50±7mg/dl (mean±S.E.M.); P<0.0001] compared with the control group (from 21±2 to 27±2mg/dl). The atheromatous area was 60±9% in the high-dose group and 58±9% in the control group. Moreover, correlation analysis showed that triacylglycerol and non-HDL-C levels had a direct relationship with the development of atherosclerosis, but CETP activity and HDL-C levels did not. Thus the CETP inhibitor JTT-705 alone did not have an anti-atherogenic effect in our rabbit model, of severe hypercholesterolaemia suggesting a relatively minor effect of HDL-elevating therapy as compared with decreases in non-HDL-C (or triacylglycerol) levels in patients with severe hypercholesterolaemia, such as familial hypercholesterolaemia.


2020 ◽  
Vol 47 (3) ◽  
pp. 99-109
Author(s):  
K. A. Sanwo ◽  
A. V. Adegoke ◽  
O. Y. Ayo – Ajasa ◽  
A. O. Fagbohun ◽  
T. M. Adeyanju

Tonic root has been speculated to improve Libido and this could have effect on performance and carcass traits of the animal. Afifty-six days experiment was conducted to determine meat quality of Abor acre Strain of broiler chickens fed graded dietary inclusion of supplemental white ginger (Mondia whitei). One hundred and eighty, one day-old broiler chicks were assigned to five treatment groups with three replicates per group. Birds on treatment one were fed concentrate with no supplements, those on treatment two had concentrate + 0.5g Mondia whitei per kg feed, treatment three had concentrate + 1g Mondia whitei per kg feed; Treatment 4 had concentrate with 1.5g Mondia whitei per kg feed and treatment five had concentrate + 2g Mondia whitei per kg feed. At the end of the eight weeks feeding trial, three birds each from each replicate of five treatment groups were randomly selected, deprived of food for 12 hours prior to slaughtering. After the traditional slaughtering method, feather plucking and evisceration were done and breast muscles were excised from the carcasses for quality parameters evaluation. The results showed significance (P< 0.05) in some measured parameters such as colour, yellowness (b*) and Lightness (L*). Highest (P<0.05) triglyceride content of meat (145.33 mg/dL) was recorded in the meat of birds fed inclusion level at 0.5g/kg and the lowest value (91.67mg/dL) in the meat of birds fed inclusion level of 1g/kg. Breast muscles had the highest (P<0.05) pH score 6.72 at 1g/kg inclusion level and least value of 6.51 was in the control group. Dietary inclusion of Mondia whitei showed no significant (P>0.05) effect on cholesterol, high density lipoprotein (HDL) and low-density lipoprotein (LDL). Although superoxide dismutase (SOD) and water absorptive power were not significantly (P>0.05) influenced, cooking and refrigeration loss as well as thiobarbituric acid reactive substance (TBARS) in meat were significantly (P<0.05) lowest in birds fed 1g/kg dietary inclusion level of Mondia whitei. Some phytochemicals and overall sensory acceptability were statistically influenced by the dietary treatments.


2019 ◽  
Vol 18 (1) ◽  
pp. 38-42 ◽  
Author(s):  
Andromachi Reklou ◽  
Niki Katsiki ◽  
Asterios Karagiannis ◽  
Vasilios Athyros

Arterial stiffness (AS) is considered an independent predictor of cardiovascular disease (CVD) events. Among lipid lowering drugs, statins have a beneficial effect on AS, independent of their hypolipidaemic effect. Based on 3 meta-analyses and other studies, this effect is compound- and doserelated. Potent statins at high doses are more effective than less powerful statins. Ezetimibe (± statin) also seems to decrease AS in patients with dyslipidaemia. Fibrates have no effect on AS. Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors have data that beneficially affect all AS risk factors, suggesting a beneficial effect on artery compliance. However, there is no direct measurement of their effect on AS indices. In patients with dyslipidaemia, prescribing high dose statins (± ezetimibe) will not only decrease low-density lipoprotein cholesterol levels but also improve AS (in addition to other effects). This effect on AS may contribute to the observed reduction in vascular events.


2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Furio Colivicchi ◽  
Michele Massimo Gulizia ◽  
Marcello Arca ◽  
Pier Luigi Temporelli ◽  
Lucio Gonzini ◽  
...  

Introduction. The current use of lipid lowering therapies and the eligibility for proprotein convertase subtilisin/kexin-9 (PCSK9) inhibitors of patients surviving a myocardial infarction (MI) is poorly known. Methods. Using the data from two contemporary, nationwide, prospective, real-world registries of patients with stable coronary artery disease, we sought to describe the lipid lowering therapies prescribed by cardiologists in patients with a prior MI and the resulting eligibility for PCSK9 inhibitors according to the European Society of Cardiology (ESC)/European Atherosclerosis Society (EAS) and the Italian regulatory agency (Agenzia Italiana del Farmaco; AIFA) criteria. The study cohort was stratified according to the following low-density lipoprotein cholesterol (LDL-C) levels at the time of enrolment: <70 mg/dl; 70–99 mg/dl and ≥100 mg/dl. Results. Among the 3074 post-MI patients with LDL-C levels available, a target level of LDL-C < 70 mg/dl was present in 1186 (38.6%), while 1150 (37.4%) had LDL-C levels ranging from 70 to 99 mg/dl and the remaining 738 (24.0%) an LDL-C ≥ 100 mg/dl. A statin was prescribed more frequently in post-MI patients with LDL-C levels <70 mg/dl (97.1%) compared to the other LDL-C groups (p<0.0001). A low dose of statin was prescribed in 9.3%, while a high dose in 61.4% of patients. Statin plus ezetimibe association therapy was used in less than 18% of cases. In the overall cohort, 293 (9.8%) and 450 (22.2%) resulted eligible for PCSK9 inhibitors, according to ESC/EAS and AIFA criteria, respectively. Conclusions. Post-MI patients are undertreated with conventional lipid lowering therapies. A minority of post-MI patients would be eligible to PCSK9 inhibitors according to ESC/EAS guidelines and Italian regulatory agency criteria.


2021 ◽  
Vol 10 (2) ◽  
pp. 73-78
Author(s):  
D. Yu. Sedykh ◽  
O. N. Hryachkova ◽  
V. V. Kashtalap ◽  
O. L. Barbarash

Aim. To study the features of clinical and anamnestic characteristics and treatment of patients with hypertriglyceridemia (HTG) using the data of the lipid control center of Kemerovo.Methods. The single-center retrospective study is based on the data of patients dynamic observation (n = 100) in the Dyslipidemia Registry of Kuzbass in 2019. A comparative analysis of clinical and anamnestic characteristics, lipidogram parameters and therapy was performed at the time when the patients were included in the study and after 6–12 months in patients with HTG (the criterion was the level of triglycerides (TG) above 1.69 mmol/L) and in patients without it. Indications for consulting a lipidologist were high cholesterol (levels of total cholesterol (TC) ˃7.5 mmol/L or low-density lipoprotein cholesterol ˃4.9 mmol/L or TG˃5 mmol/L), requirement of the high dose and/or combination therapy of lipid-lowering drugs; medical history of cardiovascular diseases and/or revascularization of vascular bed in patients under 55 years of age; suspected intolerance to lipid-lowering therapy due to the developed side effects; the issue of lipid-lowering therapy in complex clinical situations.Results. Among the patients who visited a lipidologist in 2019, mixed hypertriglyceridemia was noted in 56 (56%) of cases, while 44 (44%) patients had other lipid metabolism disorders without increased levels of TG. A distinctive feature of patients with mixed hypertriglyceridemia is the lower incidence of myocardial infarctions (p = 0.029) and lower number of coronary stents (p = 0.018) in the medical history, despite the initially higher levels of TC (p = 0.005) and TG (p = 0.000). According to the results of 6–12 months observation, a significant decrease in TC (p = 0.001) and TG (p = 0.044) levels during the lipid-lowering therapy was revealed due to the addition of fenofibrate (p = 0.000) to all groups of patients who were monitored by a lipidologist.Conclusion. The patients with dyslipidemia and HTG are a complex category of patients who require combined lipid-lowering therapy, which can only be prescribed by a lipidologist. 


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