RESUMO
Activation of AMP-activated protein kinase (AMPK) is proposed to alleviate hyperlipidemia. With cordycepin and N6-(2-hydroxyethyl) adenosine (HEA) as lead compounds, a series of adenosine-based derivatives were designed, synthesized, and evaluated on activation of AMPK. Finally, compound V1 was identified as a potent AMPK activator with the lipid-lowering effect. Molecular docking and circular dichroism indicated that V1 exerted its activity by binding to the γ subunit of AMPK. V1 markedly decreased the serum low-density lipoprotein cholesterol levels in C57BL/6 mice, golden hamsters, and rhesus monkeys. V1 was selected as the clinical compound and concluded Phase 1 clinical trials. A single dose of V1 (2000 mg) increased AMPK activation in human erythrocytes after 5 and 12 h of treatment. RNA sequencing data suggested that V1 downregulated expression of genes involved in regulation of apoptotic process, lipid metabolism, endoplasmic reticulum stress, and inflammatory response in liver by activating AMPK.
Assuntos
Proteínas Quinases Ativadas por AMP , Hiperlipidemias , Camundongos Endogâmicos C57BL , Animais , Proteínas Quinases Ativadas por AMP/metabolismo , Hiperlipidemias/tratamento farmacológico , Hiperlipidemias/metabolismo , Humanos , Camundongos , Masculino , Macaca mulatta , Simulação de Acoplamento Molecular , Administração Oral , Mesocricetus , Hipolipemiantes/farmacologia , Hipolipemiantes/química , Hipolipemiantes/síntese química , Hipolipemiantes/uso terapêutico , Descoberta de Drogas , Relação Estrutura-Atividade , CricetinaeRESUMO
Berberine was used as the lead compound in the present study to design and synthesize novel berberine derivatives by splicing bromine bridges of different berberine carbon chain lengths coupled nitric oxide donors, and their lipid lowering activities were assessed in a variety of ways. This experiment synthesized 17 new berberine nitric oxide donor derivatives. Compared with berberine hydrochloride, most of the compounds exhibited certain glycerate inhibitory activity, and compounds 6a, 6b, 6d, 12b and 12d showed higher inhibitory activity than berberine, with 6a, 6b and 6d having significant inhibitory activity. In addition, compound 6a linked to furazolidone nitric oxide donor showed better NO release in experiments; In further mechanistic studies, we screened and got two proteins, PCSK9 and ACLY, and docked two proteins with 17 compounds, and found that most of the compounds bound better with ATP citrate lyase (ACLY), among which there may be a strong interaction between compound 6a and ACLY, and the interaction force was better than the target drug Bempedoic Acid, which meaning that 6a may exert hypolipidemic effects by inhibiting ACLY; moreover, we also found that 6a may had the better performance in gastrointestinal absorption, blood-brain barrier permeability, Egan, Muegge class drug principle model calculation and bioavailability.
Assuntos
Berberina , Hipolipemiantes , Doadores de Óxido Nítrico , Berberina/farmacologia , Berberina/análogos & derivados , Berberina/síntese química , Berberina/química , Hipolipemiantes/farmacologia , Hipolipemiantes/síntese química , Hipolipemiantes/química , Doadores de Óxido Nítrico/farmacologia , Doadores de Óxido Nítrico/síntese química , Doadores de Óxido Nítrico/química , Humanos , Estrutura Molecular , ATP Citrato (pro-S)-Liase/antagonistas & inibidores , ATP Citrato (pro-S)-Liase/metabolismo , Pró-Proteína Convertase 9/metabolismo , Simulação de Acoplamento Molecular , Animais , Barreira Hematoencefálica/efeitos dos fármacos , Óxido Nítrico/metabolismo , Inibidores de PCSK9RESUMO
A series of N-(benzoylphenyl)-carboxamide derivatives (2a, 2b, 3a, 3b, 4a, 4b, 5a, 5b, 6a and 6b) was prepared with good yields by reacting the corresponding carbonyl chlorides with aminobenzophenones at room temperature. This was followed by evaluating the hypotriglyceridemic and hypocholesterolemic effects of 3b, 5a and 5b. Triton WR-1339 (300 mg/kg) was intraperitoneally administered to overnight-fasted rats to induce hyperlipidemia. Rats were divided into six groups: control, hyperlipidemic, hyperlipidemic plus compounds 3b, 5a and 5b and hyperlipidemic plus bezafibrate. Results showed that after 18 h of treatment at a dose of 15 mg/kg body weight of each of the test compounds, the elevated plasma levels of triglycerides (TG) and total cholesterol (TC) were significantly lowered by compounds 5b and 3b (p < 0.001) and by 5a (p < 0.0001), compared to the hyperlipidemic control group. Compounds 3b and 5a significantly increased levels of high-density lipoprotein cholesterol (HDL-C) by 58 and 71%, respectively. In addition, compounds 3b and 5a caused significant reduction (p < 0.0001) of low-density lipoprotein cholesterol (LDL-C) levels compared to the control group. These results suggest a promising potential for compounds 3b, 5a and 5b as lipid-lowering agents, which may contribute to reducing the risk of atherosclerosis and cardiovascular disease
Assuntos
Animais , Masculino , Ratos , Piridinas/farmacologia , Hiperlipidemias/induzido quimicamente , Lipídeos/sangue , Hipolipemiantes/farmacologia , Polietilenoglicóis , Piridinas/síntese química , Triglicerídeos/sangue , Colesterol/sangue , Ratos Wistar , Modelos Animais de Doenças , Lipoproteínas HDL/efeitos dos fármacos , Lipoproteínas LDL/efeitos dos fármacos , Hipolipemiantes/síntese químicaRESUMO
Oxidative stress and inflammation are two conditions that coexist in many multifactorial diseases such as atherosclerosis and neurodegeneration. Thus, the design of multifunctional compounds that can concurrently tackle two or more therapeutic targets is an appealing approach. In this study, the basic NSAID structure was fused with the antioxidant moieties 3,5-di-tert-butyl-4-hydroxybenzoic acid (BHB), its reduced alcohol 3,5-di-tert-butyl- 4-hydroxybenzyl alcohol (BHBA), or 6-hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (Trolox), a hydrophilic analogue of α-tocopherol. Machine learning algorithms were utilized to validate the potential dual effect (anti-inflammatory and antioxidant) of the designed analogues. Derivatives 1-17 were synthesized by known esterification methods, with good to excellent yields, and were pharmacologically evaluated both in vitro and in vivo for their antioxidant and anti-inflammatory activity, whereas selected compounds were also tested in an in vivo hyperlipidemia protocol. Furthermore, the activity/binding affinity of the new compounds for lipoxygenase-3 (LOX-3) was studied not only in vitro but also via molecular docking simulations. Experimental results demonstrated that the antioxidant and anti-inflammatory activities of the new fused molecules were increased compared to the parent molecules, while molecular docking simulations validated the improved activity and revealed the binding mode of the most potent inhibitors. The purpose of their design was justified by providing a potentially safer and more efficient therapeutic approach for multifactorial diseases.
Assuntos
Antioxidantes/química , Aterosclerose/tratamento farmacológico , Hiperlipidemias/tratamento farmacológico , Inflamação/tratamento farmacológico , Inibidores de Lipoxigenase/química , Anti-Inflamatórios/síntese química , Anti-Inflamatórios/química , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios não Esteroides/efeitos adversos , Anti-Inflamatórios não Esteroides/química , Antioxidantes/síntese química , Antioxidantes/farmacologia , Aterosclerose/patologia , Cromanos/química , Cromanos/farmacologia , Desenho de Fármacos , Humanos , Hiperlipidemias/patologia , Hipolipemiantes/síntese química , Hipolipemiantes/química , Hipolipemiantes/farmacologia , Inflamação/patologia , Lipoxigenase/química , Lipoxigenase/efeitos dos fármacos , Inibidores de Lipoxigenase/síntese química , Inibidores de Lipoxigenase/farmacologia , Simulação de Acoplamento Molecular , Degeneração Neural/tratamento farmacológico , Degeneração Neural/patologia , Estresse Oxidativo/efeitos dos fármacos , Parabenos/química , Parabenos/farmacologia , Relação Estrutura-AtividadeRESUMO
A series of L-serine amides of antioxidant acids, such as Trolox, (E)-3-(3,5-di-tert-butyl-4-hydroxyphenyl)acrylic acid (phenolic derivative of cinnamic acid) and 3,5-di-tert-butyl-4-hydroxybenzoic acid (structurally similar to butylated hydroxytoluene), was synthesized. The hydroxy group of serine was esterified with two classical NSAIDs, ibuprofen and ketoprofen. The Trolox derivatives with ibuprofen (7) and ketoprofen (10) were the most potent inhibitors of lipid peroxidation (IC50 3.4 µΜ and 2.8 µΜ), several times more potent than the reference Trolox (IC50 25 µΜ). Most of the compounds decreased carrageenan-induced rat paw edema (37-67% at 150 µmol/kg). They were moderate inhibitors of soybean lipoxygenase, with the exception of ibuprofen derivative 8 (IC50 13 µΜ). The most active anti-inflammatory compounds exhibited a significant decrease in lipidemic indices in the plasma of Triton-induced hyperlipidemic rats, e.g., the most active compound 9 decreased triglycerides, total cholesterol and low-density lipoprotein cholesterol by 52%, 61% and 70%, respectively, at 150 µmol/kg (i.p.), similar to that of simvastatin, a well-known hypocholesterolemic drug. Since the designed compounds seem to exhibit multiple pharmacological actions, they may be of use for the development of agents against inflammatory and degenerative conditions.
Assuntos
Anti-Inflamatórios não Esteroides/síntese química , Antioxidantes/síntese química , Hipolipemiantes/síntese química , Inibidores de Lipoxigenase/síntese química , Animais , Anti-Inflamatórios não Esteroides/farmacocinética , Anti-Inflamatórios não Esteroides/uso terapêutico , Antioxidantes/farmacocinética , Antioxidantes/uso terapêutico , Carragenina/toxicidade , Colesterol/sangue , Edema/tratamento farmacológico , Edema/etiologia , Esterificação , Hiperlipidemias/tratamento farmacológico , Hipolipemiantes/farmacocinética , Hipolipemiantes/uso terapêutico , Inibidores de Lipoxigenase/farmacocinética , Inibidores de Lipoxigenase/uso terapêutico , Ratos , Ratos Wistar , Serina/química , Triglicerídeos/sangueRESUMO
In the current work, a series of novel 4-benzyloxy and 4-(2-phenylethoxy) chalcone fibrate hybrids (10a-o) and (11a-e) were synthesized and evaluated as new PPARα agonists in order to find new agents with higher activity and fewer side effects. The 2-propanoic acid derivative 10a and the 2-butanoic acid congener 10i showed the best overall PPARα agonistic activity showing Emax% values of 50.80 and 90.55%, respectively, and EC50 values of 8.9 and 25.0 µM, respectively, compared to fenofibric acid with Emax = 100% and EC50 = 23.22 µM, respectively. These two compounds also stimulated carnitine palmitoyltransferase 1A gene transcription in HepG2 cells and PPARα protein expression. Molecular docking simulations were performed for the newly synthesized compounds to study their predicted binding pattern and energies in PPARα active site to rationalize their promising activity. In vivo, compounds 10a and 10i elicited a significant hypolipidemic activity improving the lipid profile in triton WR-1339-induced hyperlipidemic rats, including serum triglycerides, total cholesterol, LDL, HDL and VLDL levels. Compound 10i possessed better anti-hyperlipidemic activity than 10a. At a dose of 200 mg/kg, it demonstrated significantly lower TC, TG, LDL and VLDL levels than that of fenofibrate at the same dose with similar HDL levels. Compounds 10i and 10a possessed atherogenic indices (CRR, AC, AI, CRI-II) like that of fenofibrate. Additionally, a promising antioxidant activity indicated by the increased tissue reduced glutathione and plasma total antioxidant capacity with decreased plasma malondialdehyde levels was demonstrated by compounds 10a and 10i. No histopathological alterations were recorded in the hepatic tissue of compound 10i (200 mg/kg).
Assuntos
Antioxidantes/química , Chalconas/química , Desenho de Fármacos , Ácidos Fíbricos/química , Hipolipemiantes/síntese química , PPAR alfa/agonistas , Animais , Sítios de Ligação , Domínio Catalítico , Humanos , Hiperlipidemias/induzido quimicamente , Hiperlipidemias/tratamento farmacológico , Hipolipemiantes/metabolismo , Hipolipemiantes/farmacologia , Hipolipemiantes/uso terapêutico , Lipídeos/sangue , Fígado/metabolismo , Fígado/patologia , Masculino , Simulação de Acoplamento Molecular , PPAR alfa/genética , PPAR alfa/metabolismo , Ratos , Relação Estrutura-Atividade , Ativação Transcricional/efeitos dos fármacosRESUMO
Oxidative stress and inflammation have been considered the main factors in the liver injury of clofibrate (CF). To obtain a novel antihyperlipidemic agent with antioxidant, anti-inflammation and hepatoprotection, the combination of sesamol and clofibric acid moieties was performed and achieved sesamol-clofibrate (CF-Sesamol). CF-Sesamol showed significant hypolipidemia effects in hyperlipidemia mice induced by Triton WR 1339, reducing TG by 38.8% (P < 0.01) and TC by 35.1% (P < 0.01). CF-Sesamol also displayed an alleviating effect on hepatotoxicity. The hepatic weight and hepatic coefficient were decreased. The amelioration of liver function was observed, such as aspartate and lactate transaminases (AST and ALT), alkaline phosphatase (ALP) and total proteins (TP) levels. Liver histopathological examination showed that hepatocyte necrosis, cytoplasmic loosening, nuclear degeneration and inflammatory cell infiltration reduced obviously by treatment with CF-Sesamol. Related molecular mechanisms on hepatoprotection showed that CF-Sesamol up-regulated Nrf2 and HO-1 expression and down-regulated p-NF-κB p65 expression in hepatic tissues. CF-Sesamol has significant antioxidant and anti-inflammatory effects. Plasma antioxidant enzymes such as SOD and CAT increased, anti-lipid peroxidation product MDA decreased. The expression of TNF-α and IL-6 inflammatory cytokines in liver was significantly lower than that in the CF group. The results indicated that CF-Sesamol exerted more potent antihyperlipidemic effects and definite hepatoprotective activity partly through the Nrf2/NF-κB-mediated signaling pathway.
Assuntos
Anti-Inflamatórios não Esteroides/farmacologia , Antioxidantes/farmacologia , Benzodioxóis/farmacologia , Ácido Clofíbrico/farmacologia , Hipolipemiantes/farmacologia , Fenóis/farmacologia , Substâncias Protetoras/farmacologia , Animais , Anti-Inflamatórios não Esteroides/síntese química , Anti-Inflamatórios não Esteroides/química , Antioxidantes/síntese química , Antioxidantes/química , Benzodioxóis/sangue , Benzodioxóis/química , Ácido Clofíbrico/sangue , Ácido Clofíbrico/química , Relação Dose-Resposta a Droga , Hiperlipidemias/induzido quimicamente , Hiperlipidemias/tratamento farmacológico , Hipolipemiantes/síntese química , Hipolipemiantes/química , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Fígado/efeitos dos fármacos , Fígado/metabolismo , Fígado/patologia , Camundongos , Camundongos Endogâmicos , Simulação de Acoplamento Molecular , Estrutura Molecular , Estresse Oxidativo/efeitos dos fármacos , Fenóis/sangue , Fenóis/química , Polietilenoglicóis , Substâncias Protetoras/síntese química , Substâncias Protetoras/química , Relação Estrutura-AtividadeRESUMO
On the basis of our earlier discovered natural product penipyridone G with potential lipid-lowering utility, 35 penipyridone derivatives were designed, synthesized and characterized. Based on the oleic acid-induced HepG2 cell lipid accumulation model, compounds 12c, 14, 15f, 15k, 15o, 15p and 16f showed potent lipid-lowering activities among the synthetic compounds at 10 µM. In particular, compounds 4, 15k, 15o showed significant activities on inhibiting lipid accumulation in insulin resistant HepG2 cells, and these three compounds were safe and non-toxic within the concentration range of 400 µM. In comparison, 15o possessed the best lipid-lowering activity. Compared with the vehicle group, the triglyceride inhibition rate of 15o was about 30.2%, and the total cholesterol inhibition rate was about 14.8% at 20 µM, which was equipotent to Simvastatin. Our research indicates that 15o may serve as a promising lead compound for the development of hypolipidemic drugs.
Assuntos
Desenho de Fármacos , Hipolipemiantes/farmacologia , Lipídeos/antagonistas & inibidores , Piridonas/farmacologia , Relação Dose-Resposta a Droga , Humanos , Hipolipemiantes/síntese química , Hipolipemiantes/química , Estrutura Molecular , Piridonas/síntese química , Piridonas/química , Relação Estrutura-AtividadeRESUMO
A series of target compounds 1,3-benzodioxole-based fibrate derivatives were designed and synthesized. All the target compounds were preliminarily evaluated by hyperlipidemia mice induced by Triton WR-1339, in which compound 12 displayed a greater anti-hyperlipidemia activity than other compounds as well as positive drug fenofibrate (FF). 12 showed a significant reduction of plasma lipids, such as triglycerides (TG), total cholesterol (TC) and low-density lipoprotein cholesterin (LDL-C), in high fat diet (HFD) induced hyperlipidemic mice. In addition, hepatic transaminases (AST and ALT) were ameliorated after administration of 12, in particular the AST, and the histopathological examination showed that 12 improved the hepatic lipid accumulation. The expression of PPAR-α involved in lipids metabolism was up-regulated in the liver tissues of 12-treated group. Other significant activity such as antioxidant, and anti-inflammation was confirmed and reinforced the effects of 12 as a potential hypolipidemia and hepatoprotective agent.
Assuntos
Dioxóis/farmacologia , Hiperlipidemias/tratamento farmacológico , Hipolipemiantes/farmacologia , Lipídeos/antagonistas & inibidores , Substâncias Protetoras/farmacologia , Animais , Dieta Hiperlipídica/efeitos adversos , Dioxóis/síntese química , Dioxóis/química , Relação Dose-Resposta a Droga , Hiperlipidemias/induzido quimicamente , Hiperlipidemias/metabolismo , Hipolipemiantes/síntese química , Hipolipemiantes/química , Camundongos , Estrutura Molecular , Substâncias Protetoras/síntese química , Substâncias Protetoras/química , Relação Estrutura-AtividadeRESUMO
Berberine (BBR), a kind of quaternary ammonium benzylisoquinoline alkaloids with multiple pharmacological activities, has been regarded as a promising lipid-lowering agent in the field of drug repurposing. Particularly, the chemical modification at the C-9 position of BBR can remarkably improve its lipid-lowering efficacy. In this study, thirteen novel BBR derivatives were rationally designed, synthesized, and evaluated by preliminary pharmacological tests. The results showed that most compounds exhibited more potent hypolipidemic activities when compared with BBR and simvastatin. Among these compounds, compound 2h-1 and 2h-2 exhibited better activity profiling in these four tests involving with inhibition of total cholesterol (TCHO), triglyceride (TG), and low-density lipoprotein cholesterol (LDLC) and the increase of high-density lipoprotein cholesterol (HDLC). Correspondingly, the BBR analogs with 9-O-cinnamic moiety probably exhibited potent lipid-lowering activity, and should be exploited as an important versatile template for the development of BBR-like lipid-lowering agents.
Assuntos
Berberina/farmacologia , Descoberta de Drogas , Hipolipemiantes/farmacologia , Lipídeos/antagonistas & inibidores , Células 3T3 , Animais , Berberina/análogos & derivados , Berberina/química , Sobrevivência Celular/efeitos dos fármacos , Células Hep G2 , Humanos , Hipolipemiantes/síntese química , Hipolipemiantes/química , Camundongos , Estrutura MolecularRESUMO
Hyperlipidaemia is one of the major risk factors for atherosclerosis, coronary heart disease, stroke and diabetes. In the present study, we synthesized a new anthraquinone compound, 1,8-dihydroxy-3-succinic acid monoethyl ester-6-methylanthraquinone, and named it Kanglexin (KLX). The aim of this study was to evaluate whether KLX has a lipid-lowering effect and to explore the potential molecular mechanism. In this study, Sprague-Dawley rats were fed a high fat diet (HFD) for 5 weeks to establish a hyperlipidaemia model; then, the rats were orally administered KLX (20, 40, and 80 mg kg-1·d-1) or atorvastatin calcium (AT, 10 mg kg-1·d-1) once a day for 2 weeks. KLX had prominent effects on reducing blood lipids, hepatic lipid accumulation, body weight and the ratio of liver weight/body weight. Furthermore, KLXdramatically reduced the total cholesterol (TC) and triglyceride (TG) levels and lipid accumulation in a HepG2 cell model of dyslipidaemia induced by 1 mmol/L oleic acid (OA). KLX may decrease lipid levels by phosphorylating adenosine monophosphate-activated protein kinase (AMPK) and the downstream sterol regulatory element binding protein 2 (SREBP-2)/proprotein convertase subtilisin/kexin type 9 (PCSK9)/low-density lipoprotein receptor (LDLR) signalling pathway in the HFD rats and OA-treated HepG2 cells. The effects of KLX on the AMPK/SREBP-2/PCSK9/LDLR signalling pathway were abolished when AMPK was inhibited by compound C (a specific AMPK inhibitor) in HepG2 cells. In summary, KLX has an efficient lipid-lowering effect mediated by activation of the AMPK/SREBP-2/PCSK9/LDLR signalling pathway. Our findings may provide new insight into and evidence for the discovery of a new lipid-lowering drug for the prevention and treatment of hyperlipidaemia, fatty liver, and cardiovascular disease in the clinic.
Assuntos
Proteínas Quinases Ativadas por AMP/metabolismo , Antraquinonas/farmacologia , Fígado Gorduroso/prevenção & controle , Hepatócitos/efeitos dos fármacos , Hiperlipidemias/tratamento farmacológico , Hipolipemiantes/farmacologia , Lipídeos/sangue , Fígado/efeitos dos fármacos , Pró-Proteína Convertase 9/metabolismo , Receptores de LDL/metabolismo , Proteína de Ligação a Elemento Regulador de Esterol 2/metabolismo , Animais , Antraquinonas/síntese química , Biomarcadores/sangue , Dieta Hiperlipídica , Modelos Animais de Doenças , Fígado Gorduroso/sangue , Fígado Gorduroso/enzimologia , Fígado Gorduroso/patologia , Células Hep G2 , Hepatócitos/enzimologia , Hepatócitos/patologia , Humanos , Hiperlipidemias/sangue , Hiperlipidemias/enzimologia , Hipolipemiantes/síntese química , Fígado/enzimologia , Fígado/patologia , Masculino , Ratos Sprague-Dawley , Transdução de SinaisRESUMO
Insulin resistance is a major pathophysiological feature in the development of type 2 diabetes (T2DM). Ferulic acid is known for attenuating the insulin resistance and reducing the blood glucose in T2DM rats. In this work, we designed and synthesized a library of new ferulic acid amides (FAA), which could be considered as ring opening derivatives of the antidiabetic PPARγ agonists Thiazolidinediones (TZDs). However, since these compounds displayed weak PPAR transactivation capacity, we employed a proteomics approach to unravel their molecular target(s) and identified the peroxiredoxin 1 (PRDX1) as a direct binding target of FAAs. Interestingly, PRDX1, a protein with antioxidant and chaperone activity, has been implied in the development of T2DM by inducing hepatic insulin resistance. SPR, mass spectrometry-based studies, docking experiments and inâ vitro inhibition assay confirmed that compounds VIe and VIf bound PRDX1 and induced a dose-dependent inhibition. Furthermore, VIe and VIf significantly improved hyperglycemia and hyperlipidemia in streptozotocin-nicotinamide (STZ-NA)-induced diabetic rats as confirmed by histopathological examinations. These results provide guidance for developing the current FAAs as new potential antidiabetic agents.
Assuntos
Amidas/farmacologia , Ácidos Cumáricos/farmacologia , Inibidores Enzimáticos/farmacologia , Hipoglicemiantes/farmacologia , Hipolipemiantes/farmacologia , Peroxirredoxinas/antagonistas & inibidores , Amidas/síntese química , Amidas/química , Animais , Compostos de Bifenilo/antagonistas & inibidores , Sobrevivência Celular/efeitos dos fármacos , Ácidos Cumáricos/síntese química , Ácidos Cumáricos/química , Diabetes Mellitus Experimental/induzido quimicamente , Diabetes Mellitus Experimental/tratamento farmacológico , Diabetes Mellitus Experimental/metabolismo , Relação Dose-Resposta a Droga , Inibidores Enzimáticos/síntese química , Inibidores Enzimáticos/química , Humanos , Hipoglicemia/induzido quimicamente , Hipoglicemia/tratamento farmacológico , Hipoglicemia/metabolismo , Hipoglicemiantes/síntese química , Hipoglicemiantes/química , Hipolipemiantes/síntese química , Hipolipemiantes/química , Masculino , Modelos Moleculares , Estrutura Molecular , Peroxirredoxinas/metabolismo , Picratos/antagonistas & inibidores , Ratos , Ratos Sprague-Dawley , Ratos Wistar , Estreptozocina , Relação Estrutura-Atividade , Células Tumorais CultivadasRESUMO
Berberine, as a representative isoquinoline alkaloid, exhibits significant hypolipidemic activity in both animal models and clinical trials. Recently, a large number of studies on the lipid-lowering mechanism of berberine and studies for improving its hypolipidemic activity have been reported, but for the most part, they have been either incomplete or not comprehensive. In addition, there have been a few specific reviews on the lipid-reducing effect of berberine. In this paper, the physicochemical properties, the lipid-lowering mechanism, and studies of the modification of berberine all are discussed to promote the development of berberine as a lipid-lowering agent. Subsequently, this paper provides some insights into the deficiencies of berberine in the study of lipid-lowering drug, and based on the situation, some proposals are put forward.
Assuntos
Berberina/química , Berberina/farmacologia , Hiperlipidemias/tratamento farmacológico , Hipolipemiantes/síntese química , Hipolipemiantes/farmacologia , Humanos , Estrutura Molecular , Relação Estrutura-AtividadeRESUMO
Fibrates are a class of phenoxyisobutyric acid derivatives mainly used as anti-hyperlipidemic agents. The fibrate scaffold has undergone a variety of chemical modifications, providing a wide spectrum of biological activities. Within the last few years, the majority of new synthetic fibrate derivatives have demonstrated hypolipidemic activity through peroxisome proliferator-activated receptorâ α (PPARα) activation. However, some compounds containing the fibrate scaffold have shown different pharmacological properties, also independent of PPARα activation, such as anti-inflammatory, analgesic, antioxidant, and antiplatelet activities. The aim of this review is to highlight the structure-activity relationships (SAR) in evaluating the significance of fibrates in the field of medicinal chemistry.
Assuntos
Ácidos Fíbricos/química , Ácidos Fíbricos/farmacologia , Hipolipemiantes/química , Hipolipemiantes/farmacologia , Animais , Química Farmacêutica , Ácidos Fíbricos/síntese química , Humanos , Hiperlipidemias/tratamento farmacológico , Hiperlipidemias/metabolismo , Hipolipemiantes/síntese química , Estrutura Molecular , PPAR alfa/metabolismo , Relação Estrutura-AtividadeRESUMO
A series of novel caffeoylquinic acid derivatives of chlorogenic acid have been designed and synthesized. Biological evaluation indicated that several synthesized derivatives exhibited moderate to good lipid-lowering effects on oleic acid-elicited lipid accumulation in HepG2 liver cells. Particularly, derivatives 3d, 3g, 4c and 4d exhibited more potential lipid-lowering effect than the positive control simvastatin and chlorogenic acid. Further studies on the mechanism of 3d, 3g, 4c and 4d revealed that the lipid-lowering effects were related to their regulation of TG levels and merit further investigation.
Assuntos
Hipolipemiantes/síntese química , Hipolipemiantes/farmacologia , Ácido Oleico/farmacologia , Ácido Quínico/análogos & derivados , Ácido Clorogênico/farmacologia , Células Hep G2 , Humanos , Hipolipemiantes/química , Metabolismo dos Lipídeos/efeitos dos fármacos , Ácido Quínico/síntese química , Ácido Quínico/química , Ácido Quínico/farmacologia , Sinvastatina/farmacologiaRESUMO
A new series of imidazole-5-carboxamide derivatives were prepared and tested for their anti-hyperlipidemic activity in Triton-WR-1339-induced hyperlipidemic Wistar rats. The purpose of this research was to improve benzophenone carboxamides water solubility maintaining at the same time the antihyperlipidemic activity. Compounds 4, 6, 10, and 11 were synthesized through a coupling reaction between imidazoles-5-carbonyl chloride and amino benzophenones. The tested animals (n=48) were divided into six groups: the first group (hyperlipidemic control group; HCG) received an intraperitoneal injection (i.p.) of (300 mg/kg) Triton WR-1339. The second group received i.p. injection of Triton WR-1339 followed by an intra-gastric administration of bezafibrate (100 mg/kg) (bezafibrate; BF). The third, fourth, fifth, and sixth groups received i.p. injection of Triton WR-1339 followed by an intra-gastric administration of (30 mg/kg) of compounds 4, 6, 10, and 11, respectively. At a dose of 30 mg/kg body weight compounds 4, 6, 10, and 11 significantly (p<0.0001) decreased the plasma level of triglyceride (TG), low-density lipoprotein (LDL) and total cholesterol (TC) levels after 18 h of treatment. Additionally, compounds 4, 6, 11 and bezafibrate (100 mg/kg) significantly (p<0.0001) increased the plasma level of high-density lipoprotein (HDL) levels, which is known for its preventive role against atherogenesis. These results demonstrate the possibility of pharmacokinetic properties improvement maintaining the biological and pharmacological profile of these compounds.
Assuntos
Hiperlipidemias/tratamento farmacológico , Hipolipemiantes/uso terapêutico , Imidazóis/uso terapêutico , Lipídeos/química , Animais , Hiperlipidemias/induzido quimicamente , Hipolipemiantes/síntese química , Hipolipemiantes/química , Imidazóis/síntese química , Imidazóis/química , Intubação Gastrointestinal , Lipoproteínas HDL/sangue , Masculino , Estrutura Molecular , Polietilenoglicóis/administração & dosagem , Ratos , Ratos Wistar , SolubilidadeRESUMO
BACKGROUND: The use of statin, a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor for the treatment of dyslipidemia has been associated with dose limiting hepatoxicity, mytotoxicity and tolerability due to myalgias thereby necessitating the synthesis of new drug candidates for the treatment of lipid disorder. METHODS: The reaction of appropriate benzenesulphonamide with substituted phenoxazinone in the presence of phenylboronic acid gave the targeted compounds. The molecular docking study were carried out using autodock tool against peroxisome proliferator activated receptor alpha. The in vivo lipid profile were assayed using conventional methods. The kidney and liver function test were carried out to assess the effect of the derivatives on the organs. The LD50 of the most active derivatives were determined using mice. RESULTS: The targeted compounds were successfully synthesized in excellent yields and characterized using spectroscopic techniques. The results of the molecular docking experiment showed that they were good stimulant of peroxisome proliferator activated receptor alpha. Compound 9f showed activity at Ki of 2.8 nM and binding energy of 12.6 kcal/mol. All the compounds tested reduced triglyceride, total cholesterol, low density lipoprotein cholesterol and very low density lipoprotein cholesterol level in the mice model. Some of the reported compounds also increased high density lipoprotein cholesterol level in the mice. The compounds did not have appreciable effect on the kidney and liver of the mice used. The LD50 showed that the novel compounds have improved toxicity profile. CONCLUSION: The synthesis of fifteen new derivatives of carboxamides bearing phenoxazinone and sulphonamide were successful. The compounds possessed comparable activity to gemfibrozil. The reported compounds had better toxicity profile than gemfibrozil and could serve as a replacement for the statins and fibrate class of lipid agents.
Assuntos
Hipercolesterolemia/tratamento farmacológico , Hipolipemiantes/síntese química , Fígado/efeitos dos fármacos , Simulação de Acoplamento Molecular , Oxazinas/síntese química , PPAR alfa/antagonistas & inibidores , Animais , Domínio Catalítico , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Dieta Hiperlipídica/efeitos adversos , Modelos Animais de Doenças , Desenho de Fármacos , Expressão Gênica , Humanos , Hipercolesterolemia/etiologia , Hipercolesterolemia/metabolismo , Hipolipemiantes/farmacologia , Testes de Função Renal , Fígado/metabolismo , Testes de Função Hepática , Masculino , Camundongos , Oxazinas/farmacologia , PPAR alfa/química , PPAR alfa/genética , PPAR alfa/metabolismo , Ligação Proteica , Domínios e Motivos de Interação entre Proteínas , Estrutura Secundária de Proteína , Relação Estrutura-Atividade , Termodinâmica , Triglicerídeos/sangueRESUMO
Hyperlipidemia is known as an elevation of plasma lipid components. It contributes significantly to atherosclerosis which is one of the most important causative factors in cardiovascular diseases. Agents that cause a dramatic decrease in serum lipid levels are of great value in the treatment of cardiovascular diseases. For this purpose, a new series of benzimidazole propyl carboxamide benzophenone derivatives have been synthesized (7, 8, and 9). These compounds were tested in vivo to evaluate their potential hypolipidemic activity using Triton WR-1339 induced hyperlipidemic rats. All the synthesized compounds have proved to be highly biologically active, with compound 9 being the most active derivative.
Assuntos
Benzimidazóis/farmacologia , Hiperlipidemias/tratamento farmacológico , Hipolipemiantes/farmacologia , Animais , Benzimidazóis/química , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Hiperlipidemias/induzido quimicamente , Hipolipemiantes/síntese química , Hipolipemiantes/química , Injeções Intraperitoneais , Masculino , Estrutura Molecular , Polietilenoglicóis/administração & dosagem , Ratos , Ratos Wistar , Relação Estrutura-AtividadeRESUMO
A series of tetrahydrocarbazole derivatives was designed and synthesized on the basis of the AMP-activated protein kinase activator GY3. All the synthesized compounds were screened in HepG2 cell lines for glucose consumption activity and several of them showed potent glucose decreasing activity. In vivo evaluation of the hypoglycemic and hypolipemic effects indicated that 7a exhibited comparable activity with pioglitazone, but with a weaker body-weight increasing effect. The pharmacokinetic profiles of 7a were also investigated.
Assuntos
Carbazóis/farmacologia , Descoberta de Drogas , Hipoglicemiantes/farmacologia , Hipolipemiantes/farmacologia , Glicemia/efeitos dos fármacos , Peso Corporal/efeitos dos fármacos , Carbazóis/síntese química , Carbazóis/química , Relação Dose-Resposta a Droga , Células Hep G2 , Humanos , Hipoglicemiantes/síntese química , Hipoglicemiantes/química , Hipolipemiantes/síntese química , Hipolipemiantes/química , Estrutura Molecular , Relação Estrutura-AtividadeRESUMO
AIM: Thymoquinone (TQ), has been reported to possess strong antihyperlipidemic properties. However, a variety of serious side effects has been reported for TQ. The present study aimed to evaluate the potential antihyperlipidemic activity of newly synthesized TQ analogs. METHODS & RESULTS: first, novel TQ derivatives were studied against radiation-induced dyslipidemia in male rats. Second, the most promising sulfur derivatives (4-7), were further tested to elucidate their possible mechanism(s) of actions. Results showed that they possess Hydroxymethyl Glutaryl-Co A reductase inhibitory activity, as well as stimulatory effects on the activities of each of plasma Lecithin-Cholesterol Acyltransferase and lipoprotein lipase enzymes. CONCLUSION: TQ derivatives (4-7), could be considered as promising agents in pathologies implicating impaired lipid metabolism, preclinical evaluation is warranted. [Formula: see text].