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Competitive junctional rhythm.  

Competitive junctional rhythm.  

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Patients with chronic aortic dissections are at high risk of catheter-induced complications. We report a Berberine is used in traditional Chinese medicine for the treatment of congestive heart failure, hypertension, diabetes, and dyslipidaemia and has a good safety profile. We report a case of a 53-year-old sportsman referred to our hospital for th...

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... did not present signs of heart failure, and cardiac, pulmonary, and vascular examinations were normal. The electrocardiogram (ECG) showed sinus bradycardia with a heart rate of 45 bpm, first-degree atrioventricular block (PR interval of 280 ms), and a competitive junctional rhythm at 55 bpm (Figure 1). Both blood analysis and echocardiography did not show any justification for the marked bradycardia. ...

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... In addition, intravenous administration of BBR can cause allergic reactions (190). Additionally, arrhythmia has been reported in hypervagotonic individuals after the administration of BBR (191). Other side effects, including nausea, cramping, diarrhea, flatulence, vomiting, rash, fever, constipation, and stomachache, have also been reported (192)(193)(194). ...
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... In addition to the pharmacological efficacy, safety and toxicity data of berberine should also be reviewed carefully. Though uncommon, a case report showed electrocardiogram sinus bradycardia, first-degree atrioventricular block and competitive junctional rhythm in a sportsman taking berberine for hypercholesterolemia indicating that berberine might have side effect in hypervagotonic persons (Cannillo et al., 2013). Additionally, berberine might increase risk for kernicterus in jaundiced newborn infants because administration of berberine resulted in a significant decrease in bilirubin serum protein binding due to displacement of bilirubin from albumin by berberine in an experimental study (Chan, 1993). ...
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The exacerbation of oxidative and inflammatory reactions has been involved in atherosclerotic cardiovascular diseases leading to morbidity and mortality worldwide. Discovering the underlying mechanisms and finding optimized curative approaches to control the global prevalence of cardiovascular diseases is needed. Growing evidence has demonstrated that gut microbiota is associated with the development of atherosclerosis, while berberine, a natural product exhibits antiatherogenic effects in clinical and pre-clinical studies, which implies a potential link between berberine and gut microbiota. In light of these novel discoveries, evidence of the role of berberine in modulating atherosclerosis with a specific focus on its interaction with gut microbiota is collected. This review synthesizes and summarizes antioxidant and anti-inflammatory effects of berberine on combating atherosclerosis experimentally and clinically, explores the interaction between berberine and intestinal microbiota comprehensively, and provides novel insights of berberine in managing atherosclerotic cardiovascular diseases via targeting the gut-heart axis mechanistically. The phenomenon of how berberine overcomes its weakness of poor bioavailability to conduct its antiatherogenic properties is also discussed and interpreted in this article. An in-depth understanding of this emerging area may contribute to identifying therapeutic potentials of medicinal plant and natural product derived pharmaceuticals for the prevention and treatment of atherosclerotic cardiovascular diseases in the future.
... To justify, according to a clinical case, a 53-year-old man admitted to the emergency department for fatigue, dyspnoea upon exertion and bradycardia, six days after starting a berberine-containing product to treat hypercholesterolaemia, was reported. Therefore, this case study suggests that berberine's use should be carefully weighed in hypervagotonic people due to the drug's bradycardic and antiarrhythmic properties, which could became proarrhythmic, exposing patients to potential health risks ( Cannillo et al., 2013 ). Because of its ability to inhibit the hERG (human ether-a-go-go-related gene) potassium channel, a target of numerous antiarrhythmic drugs, berberine can also induce cardiotoxicity ( Xu et al., 2017 ). ...
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... However, several data in vivo and in vitro, as well as clinical studies, demonstrated that BRB modulates the cardiovascular functionality with great effectiveness, acting through multiple mechanisms that impact on the electrical and contractile properties of the heart 5 . Generally, BRB is considered beneficial at cardiovascular level 5,17,50 although data obtained in some experimental models 51 and in a hypervagotonic patient 52 indicate that BRB actions on cardiac functionality remain in part controversial. Our results, showing bradycardic effects and the reduction www.nature.com/scientificreports/ ...
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... However, minimal information on the adverse drug reactions of berberine and evodiamine supplementation is available. Some studies have demonstrated that the maternal toxicity lowest observed adverse effect levels of berberine were 531 mg/kg/day and 841 mg/kg/day in rats and mice [32], and berberine could present certain side effects in hypervagotonic people [33]. The incidence of toxic adverse effect is connected with the doses of berberine, which showed that the dose of berberine increase lead to the rising risk of toxic side effect [34]. ...
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... In a randomized controlled trial, Li et al. reported that Tongxinluo Capsules, a TCM used to treat coronary disease and angina pectoris, caused an adverse reaction in the form of stomachaches in the treatment group (70). Berberine, an active compound extracted from the herb Berberis, may induce the onset of competitive junctional rhythm, causing a loss of atrioventricular synchronization, and reduce chronotropic competence with the onset of symptoms upon exertion (71). In fact, the present evidence of adverse reactions and toxicity is insufficient. ...
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Traditional Chinese medicine (TCM), as a type of complementary and alternative medicine (CAM), is a sophisticated and time-honored form of healthcare in China. Many TCMs are widely used to treat hepatitis B and hepatitis C in countries like China, Japan, and South Korea. Since conventional clinical preparations like interferon-α cause obvious dose-dependent adverse reactions and drug resistance, TCMs and related bioactive compounds have garnered increasing attention from physicians and medical researchers. Thus far, a number of TCMs and compounds have been used to inhibit the hepatitis B virus (HBV) or hepatitis C virus (HCV) in vitro, in vivo, and even in clinical trials. The current review summarizes TCMs and related compounds that have been used to inhibit HBV or HCV. Most of these medicines are derived from herbs. HepG2.2.15 cells have been used to study HBV in vitro and Huh7.5 cells have been similarly used to study HCV. Ducks have been used to study the anti-HBV effect of new medication in vivo, but there are few animal models for anti-HCV research at the present time. Thus far, a number of preclinical studies have been conducted but few clinical trials have been conducted. In addition, a few chemically modified compounds have displayed greater efficacy than natural products. However, advances in TCM research are hampered by mechanisms of action of many bioactive compounds that have yet to be identified. In short, TCMs and related active compounds are a CAM that could be used to treat HBV and HCV infections.
... Zhao GL et al Acta Pharmacologica Sinica npg and animal studies have demonstrated the beneficial effects of BBR on cardiovascular performance [6][7][8][9][10] . BBR has been found to prevent ischemia-induced ventricular tachyarrhythmias, enhance the force of cardiac contractions, and decrease peripheral vascular resistance and blood pressure [11][12][13][14] . Recently, we have also demonstrated that Notch1 signaling plays a key role in BBR's cardioprotective action [15] . ...
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... Furthermore, in vitro the dose of Ber used to prolong RR interval and ERP can led to extreme bradycardia and cardiac arrest during ACh infusion. Although we do not completely understand the reasons for these differences, the higher concentration of ACh and Ber together may adversely affect the cardiac conduction system and heart function [25]. Additional work must be performed to understand the mechanism of the differences mentioned above. ...
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The incidence of type 2 diabetes is increasing rapidly worldwide, and the development of novel anti-diabetic drugs is emerging. However, most anti-diabetic drugs cannot be used in patients with hepatic dysfunction, renal disease, and heart disease, which makes pharmacological therapy of type 2 diabetes complicated. Despite continued introduction of novel agents, the search for an ideal drug that is useful as both a hypoglycemic agent and to reduce diabetes-related complications remains elusive. Berberine is an isoquinoline alkaloid extract that has shown promise as a hypoglycemic agent in the management of diabetes in animal and human studies. Mechanistic studies have revealed beneficial effects of berberine on diabetes-related complications. Although there have been few clinical reports of the anti-diabetic effects of berberine, little documentation of adverse effects in humans positions it as a potential candidate drug to treat type 2 diabetes. In the present review, the anti-diabetic mechanism of berberine, its effect on diabetes-related complications, and its recent use in human clinical studies is highlighted. In addition, we summarize the different treatments for type 2 diabetes in adults and children.