RESUMEN
Adipose tissue beiging refers to the process by which beige adipocytes emerge in classical white adipose tissue depots. Beige adipocytes dissipate chemical energy and secrete adipokines, such as classical brown adipocytes, to improve systemic metabolism, which is beneficial for people with obesity and metabolic diseases. Cold exposure and ß3-adrenergic receptor (AR) agonist treatment are two commonly used stimuli for increasing beige adipocytes in mice; however, their underlying biological processes are different. Transcriptional analysis of inguinal white adipose tissue (iWAT) has revealed that changes in extracellular matrix (ECM) pathway genes are specific to cold exposure. Hyaluronic acid (HA), a non-sulfated linear polysaccharide produced by nearly all cells, is one of the most common components of ECM. We found that cold exposure significantly increased iWAT HA levels, whereas the ß3-AR agonist CL316,243 did not. Increasing HA levels in iWAT by Has2 overexpression significantly increases cold-induced adipose tissue beiging; in contrast, decreasing HA by Spam1 overexpression, which encodes a hyaluronidase that digests HA, significantly decreases cold-induced iWAT beiging. All these data implicate a role of HA in promoting adipose tissue beiging, which is unique to cold exposure. Given the failure of ß3-AR agonists in clinical trials for obesity and metabolic diseases, increasing HA could serve as a new approach for recruiting more beige adipocytes to combat metabolic diseases.
Asunto(s)
Tejido Adiposo Blanco , Frío , Ácido Hialurónico , Ácido Hialurónico/metabolismo , Animales , Ratones , Tejido Adiposo Blanco/metabolismo , Tejido Adiposo Blanco/efectos de los fármacos , Ratones Endogámicos C57BL , Masculino , Tejido Adiposo Beige/metabolismo , Adipocitos Beige/metabolismo , Adipocitos Beige/efectos de los fármacos , Matriz Extracelular/metabolismo , Dioxoles/farmacología , Receptores Adrenérgicos beta 3/metabolismo , Agonistas de Receptores Adrenérgicos beta 3/farmacologíaRESUMEN
Cinnamomi ramulus (CR) is a common Chinese herbal medicine with a long history. It is often used to treat exogenous wind-cold diseases in clinic, but its chemical compositions remain to be studied. In this study, CR was extracted with 75% ethanol, and UPLC-Q-Orbitrap-MS combined with data post-processing method was used to identify the chemical components in the extract. Through this technology, the components in CR can be separated and accurately identified. A total of 61 compounds were identified, including 14 simple phenylpropanoids, 3 coumarins, 5 lignans, 14 flavonoids, 10 benzoic acids, 8 organic acids, and 7 others. This study confirmed the existence of these compounds in CR and speculated the cleavage pathways of each compound, which enriched the mass spectrometry data and cleavage rules. This study can provide a reference for CR and other research.
Asunto(s)
Cumarinas , Medicamentos Herbarios Chinos , Flavonoides , Cromatografía Líquida de Alta Presión/métodos , Medicamentos Herbarios Chinos/química , Medicamentos Herbarios Chinos/análisis , Cumarinas/química , Cumarinas/análisis , Flavonoides/análisis , Flavonoides/química , Lignanos/análisis , Lignanos/química , Espectrometría de Masas/métodos , Cinnamomum/química , Espectrometría de Masas en Tándem/métodosRESUMEN
The malignancy of breast cancer poses a global challenge, with existing treatments often falling short of desired efficacy. Extensive research has underscored the effectiveness of targeting the metabolism of nicotinamide adenine dinucleotide (NAD), a pivotal molecule crucial for cancer cell survival and growth, as a promising anticancer strategy. Within mammalian cells, sustaining optimal NAD concentrations relies on two key enzymes, namely nicotinamide phosphoribosyltransferase (NAMPT) and poly(ADP-ribose) polymer 1 (PARP1). Recent studies have accentuated the potential benefits of combining NAMPT inhibitors and PARP1 inhibitors to enhance therapeutic outcomes, particularly in breast cancer. In this study, we designed and synthesized eleven novel NAMPT/PARP1 dual-target inhibitors. Among them, compound DDY02 exhibited acceptable inhibitory activities against both NAMPT and PARP1, with IC50 values of 0.01 and 0.05 µM, respectively. Moreover, in vitro evaluations revealed that treatment with DDY02 resulted in proliferation inhibition, NAD depletion, DNA damage, apoptosis, and migration inhibition in MDA-MB-468 cells. These results posit DDY02, by targeting NAD metabolism through inhibiting both NAMPT and PARP1, as a promising lead compound for the development of breast cancer therapy.
Asunto(s)
Antineoplásicos , Neoplasias de la Mama , Proliferación Celular , NAD , Nicotinamida Fosforribosiltransferasa , Poli(ADP-Ribosa) Polimerasa-1 , Nicotinamida Fosforribosiltransferasa/antagonistas & inhibidores , Nicotinamida Fosforribosiltransferasa/metabolismo , Humanos , NAD/metabolismo , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/metabolismo , Neoplasias de la Mama/patología , Poli(ADP-Ribosa) Polimerasa-1/antagonistas & inhibidores , Poli(ADP-Ribosa) Polimerasa-1/metabolismo , Antineoplásicos/farmacología , Antineoplásicos/síntesis química , Antineoplásicos/química , Femenino , Proliferación Celular/efectos de los fármacos , Línea Celular Tumoral , Apoptosis/efectos de los fármacos , Diseño de Fármacos , Citocinas/metabolismo , Inhibidores Enzimáticos/farmacología , Inhibidores Enzimáticos/síntesis química , Inhibidores Enzimáticos/química , Inhibidores de Poli(ADP-Ribosa) Polimerasas/farmacología , Inhibidores de Poli(ADP-Ribosa) Polimerasas/síntesis química , Inhibidores de Poli(ADP-Ribosa) Polimerasas/química , Simulación del Acoplamiento MolecularRESUMEN
The phytochemical investigation of Cortex Mori Radicis led to the isolation and identification of a new prenylated benzofuranone (1) and four ring-opening derivatives (2-5) named albaphenol A-E, as well as nigranol A (6), together with ten 2-arylbenzofuran derivatives (7-16). The characterization of the structures of the new compounds and the structural revision of nigranol A (6) were conducted using the comprehensive analysis of spectroscopic data (1D/2D NMR, HRESIMS, CD, and XRD). Compounds 1-16 were tested for their inhibitory effects on acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). Compounds 1 and 4 showed weak BChE-inhibitory activity (IC50 45.5 and 61.0 µM); six 2-arylbenzofuran derivatives showed more-potent BChE-inhibitory activity (IC50 2.5-32.8 µM) than the positive control galantamine (IC50 35.3 µM), while being inactive or weakly inhibitory toward AChE. Cathafuran C (14) exhibited the most potent and selective inhibitory activity against BChE in a competitive manner, with a Ki value of 1.7 µM. The structure-activity relationships of the benzofuran-type stilbenes were discussed. Furthermore, molecular docking and dynamic simulations were performed to clarify the interactions of the inhibitor-enzyme complex.
Asunto(s)
Acetilcolinesterasa , Benzofuranos , Butirilcolinesterasa , Simulación del Acoplamiento Molecular , Benzofuranos/farmacología , Corteza CerebralRESUMEN
BRD4 inhibitors have demonstrated promising potential in cancer therapy. However, their therapeutic efficacy in breast cancer varies depending on the breast cancer subtype, particularly in the treatment of TNBC. In this study, we designed and synthesized 94 derivatives of 4-(3-(3,5-dimethylisoxazol-4-yl)benzyl)phthalazin-1(2H)-one to evaluate their inhibitory activities against BRD4. Notably, compound DDT26 exhibited the most potent inhibitory effect on BRD4, with an IC50 value of 0.237 ± 0.093 µM. DDT26 demonstrated significant anti-proliferative activity against both TNBC cell lines and MCF-7 cells. Intriguingly, the phthalazinone moiety of DDT26 mimicked the PAPR1 substrate, resulting in DDT26 displaying a moderate inhibitory effect on PARP1 with an IC50 value of 4.289 ± 1.807 µM. Further, DDT26 was shown to modulate the expression of c-MYC and γ-H2AX, induce DNA damage, inhibit cell migration and colony formation, and arrest the cell cycle at the G1 phase in MCF-7 cells. Our findings present potential lead compounds for the development of potent anti-breast cancer agents targeting BRD4.
RESUMEN
Hepatogenous diabetes (HD) is a glycogen metabolism disorder that arises as a consequence of chronic liver disease. The condition is frequently detected in patients diagnosed with cirrhosis, which is a result of advanced liver disease. The prognosis for patients with HD is generally poor, and they are at a heightened risk for serious complications such as gastrointestinal bleeding, primary peritonitis, and hepatic encephalopathy. Hepatogenous diabetes progression is often associated with cirrhosis progression, which leads to the development of liver cancer and increased patient mortality. Despite the prevalence and severity of HD, no systematic treatment strategy for clinical management of the condition has been proposed by any research or institutions to date. This paper conducts an extensive review of recent advancements in HD treatment in the quest for an effective treatment approach that may improve the overall prognosis of HD.
Asunto(s)
Diabetes Mellitus , Encefalopatía Hepática , Neoplasias Hepáticas , Humanos , Diabetes Mellitus/epidemiología , Diabetes Mellitus/terapia , Diabetes Mellitus/diagnóstico , Cirrosis Hepática/terapia , Cirrosis Hepática/complicaciones , Neoplasias Hepáticas/complicaciones , PronósticoRESUMEN
α-glucosidase inhibitors (AGIs) were commonly used in clinical for the treatment of type 2 diabetes. Xanthones were naturally occurring antioxidants, and they may also be potential AGIs. In this study, eleven 1,6- and 1,3-substituted xanthone compounds were designed and synthesized, of which four were new compounds. Their α-glucosidase inhibitory activities in vitro and in silico were evaluated. Five xanthone compounds with higher activity than acarbose were screened out, and the xanthones substituted at the 1,6-positions were more likely to be potential α-glucosidase non-competitive inhibitors. The binding mode of xanthones with α-glucosidase was further studied by molecular docking method, and the results showed that the inhibitory effect of non-competitive inhibitors on site 1 of α-glucosidase may be related to the hydrogen bonds formed by the compounds with amino acid residues ASN165, HIS209, TRY207, ASP243, and SER104. This study provided a theoretical basis of the rapid discovery and structural modification of non-competitive xanthone inhibitors of α-glucosidase.
Asunto(s)
Diabetes Mellitus Tipo 2 , Xantonas , Humanos , Inhibidores de Glicósido Hidrolasas/química , alfa-Glucosidasas/química , Simulación del Acoplamiento Molecular , Diabetes Mellitus Tipo 2/tratamiento farmacológico , Xantonas/química , Relación Estructura-ActividadRESUMEN
Berberine (BBR) is a quaternary ammonium alkaloid isolated from the Traditional Chinese Medicine Coptis chinensis. It possesses a plethora of pharmacological activities because its unique structure properties make it readily interact with macromolecules through π-π stacking and electrostatic interaction. Its anti-tumor effects are receiving more and more attention in recent years. Cytotoxicity and anti-proliferation are the important anti-tumor modes of BBR, which have been studied by many research groups. This study aims to review the structural modifications of BBR and its cytotoxic derivatives. Also, to study the corresponding structure-activity relationship. BBR showed potential activities toward tumor cells, however, its modest activity and poor physicochemical properties hindered its application in clinical. Structural modification is a common and effective approach to improve BBR's cytotoxic or anti-proliferative activities. The structural modifications of BBR, the cytotoxic or anti-proliferative activities of its derivatives, and the corresponding structure-activity relationship (SAR) were summarized in the review. The concluded SAR of BBR derivatives with their cytotoxic or anti-proliferative activities will provide great prospects for the future anti-tumor drug design with BBR as the lead compound.
Asunto(s)
Antineoplásicos , Berberina , Berberina/farmacología , Berberina/química , Relación Estructura-Actividad , Antineoplásicos/farmacología , Antineoplásicos/químicaRESUMEN
BACKGROUND: Panax Japonicus (PJ) is a widely used Chinese herbal medicine, functional food and tonic. However, its origin has a great influence on the quality of PJ, and with the increasing demand for PJ, fake and inferior products, such as Panax Stipuleanatus (PS), often appear. The identification of the origin and authenticity of PJ is critical for ensuring the quality, safety and effectiveness of drugs. OBJECTIVE: Proposing a strategy to identify the origin, authenticity, and quality of PJ using HPLC fingerprints, chemometrics, and network pharmacology. METHODS: The chromatographic fingerprint method was established to analyze the origin and authenticity of PJ. Multiple chemometric methods were performed to analyze the fingerprints, including a Hierarchical Cluster Analysis (HCA), Principal Component Analysis (PCA), and Counter Propagation Artificial Neural Network (CP-ANN). Finally, the network pharmacology method was used to construct the "active ingredient-target" network, predict and assist in analyzing potential Qmarkers in PJ. RESULTS: Ward's method was used for the HCA. The results showed that PJ samples from different origins had significant regional differences and could be accurately distinguished from PS. The PCA classification results are consistent with the HCA classification results, further illustrating the model's accuracy. The CP-ANN model can analyze and predict PJ and PS and accurately obtain PJ and PS chemical markers to identify PJ and PS correctly. The network pharmacology of PJ was constructed, and three PJ Q-markers, namely, ginsenoside Ro, ginsenoside Rb1, and chikusetsu saponin â £a, were identified, which lays a foundation for the establishment of PJ quality standards. CONCLUSION: This research provides a feasible platform for the quality evaluation of PJ in the future.
Asunto(s)
Medicamentos Herbarios Chinos , Panax , Panax/química , Cromatografía Líquida de Alta Presión/métodos , Análisis por Conglomerados , Análisis de Componente Principal , Cafeína , Medicamentos Herbarios Chinos/químicaRESUMEN
INTRODUCTION: The characteristics of chemical components or groups of chemical components in traditional Chinese medicines (TCMs) determine their clinical efficacy. Quality markers (Q-markers) is of great significance for standardizing the quality control system of TCM. OBJECTIVES: We aimed to develop a new strategy to discover potential Q-markers of TCM by integrating chemometrics, network pharmacology, and molecular docking, using Centipeda minima (also known as ebushicao [EBSC]) as an example. MATERIALS AND METHODS: First, fingerprints of different batches of EBSC and its counterfeit Arenaria oreophila (also known as zaozhui [ZZ]) were established. Second, chemometric analysis was conducted to determine the influence of varying authenticity/batches of herbs on quality and the chemical markers were screened out. Third, network pharmacology and molecular docking simulations were used to verify the relationship between active ingredients and targets. Lastly, potential Q-markers were selected based on TCM theory. RESULTS: The chemical profiles of EBSC and ZZ were investigated. It was found that different batches of EBSC have differences in chemical composition. Based on our chemometric analysis, chlorogenic acid, rutin, isochlorogenic acid A, quercetin, arnicolide D, and brevilin A were selected as candidate active ingredients. ATIL6, EGFR, CASP3, MYC, HIF1A, and VEGFA were the main targets. Molecular docking was used to verify the binding ability. Based on the concept of Q-marker, arnicolide D and brevilin A were identified as potential Q-markers for EBSC. CONCLUSIONS: Our strategy could be used as a practical approach to discover Q-markers of TCM to evaluate overall chemical consistency.
Asunto(s)
Asteraceae , Medicina Tradicional China , Simulación del Acoplamiento Molecular , Farmacología en Red , Quimiometría , Asteraceae/química , Biomarcadores/análisisRESUMEN
Cyclin-dependent kinase 1 (CDK1) plays an indispensable role in the whole cell cycle. It has become a new target for cancer therapy. According to the binding mode of a pan-CDK inhibitor, flavopiridol with CDK1, and our previous work, a new series of flavone derivatives were discovered. Among them, compound 2a showed the best CDK1 inhibitory and anti-proliferative potencies in the in vitro activity investigation. The IC50 of 2a against CDK1 was 36.42 ± 1.12 µM vs. 11.49 µM ± 0.56 of flavopiridol. In the anti-proliferation activity assays, 2a exhibited better activity toward RAW264.7 than MCF-7 cells. The results indicated that flavone derivatives, besides inhibiting the growth of tumor cells, can also antagonize inflammatory response. Molecular docking results showed that conformation of 2a can form hydrogen bonds and various hydrophobic interactions with the key amino acid residues of CDK1. It can be used as a promising lead compound for CDK1 inhibitor development.
RESUMEN
Berberine (BBR) is a plant derived quaternary benzylisoquinoline alkaloid, which has been widely used in traditional medicines for a long term. It possesses broad pharmacological effects and is widely applied in clinical. In recent years, the anti-tumor effects of BBR have attracted more and more attention of the researchers. The canonical right-handed double-stranded helical deoxyribonucleic acid (B-DNA) and its polymorphs occur under various environmental conditions and are involved in a plethora of genetic instability-related diseases especially tumor. BBR showed differential binding effects towards various polymorphic DNA structures. But its poor lipophilicity and fast metabolism limited its clinical utility. Structural modification of BBR is an effective approach to improve its DNA binding activity and bioavailability in vivo. A large number of studies dedicated to improving the binding affinities of BBR towards different DNA structures have been carried out and achieved tremendous advancements. In this article, the main achievements of BBR derivatives in polymorphic DNA structures binding researches in recent 20 years were reviewed. The structural modification strategy of BBR, the DNA binding effects of its derivatives, and the structure activity relationship (SAR) analysis have also been discussed.
RESUMEN
PARP1 is a hot target, and its inhibitors have been approved for cancer therapy. However, some undesirable properties restrict the application of PARP1 inhibitors, including drug resistance, side effects and low efficiency. For multifactorial diseases, dual-target drugs have exhibited excellent synergistic effects, such as reduced drug resistance, low side effects and high therapeutic efficacy, by simultaneously regulating the main pathogenic and compensatory signal pathways of diseases. In recent years, several dual-target inhibitors based on PARP1 have been reported and have demonstrated unique advantages. In this review we summarize the research progress in dual-target inhibitors based on PARP1 and discuss the related drug design strategies and structure-activity relationships. This work is expected to provide references for the development of PARP1 inhibitors.
Asunto(s)
Diseño de Fármacos , Relación Estructura-ActividadRESUMEN
BACKGROUND: Centipeda minima (L.) A. Br. et Aschers, known as Ebushicao (EBSC) in Chinese, has long been used in traditional Chinese medicine for dispelling wind, clearing orifices, detoxification, and swelling. Although the traditional use of EBSC involves the whole plant, during harvesting and processing, separation of the stems, leaves, flowers, and roots often occurs. However, there are few studies on its medicinal parts. OBJECTIVE: A strategy combining high-performance liquid chromatography (HPLC) fingerprinting and multivariate classification techniques are here proposed for the comparison of roots, stems, leaves, and flowers of EBSC. METHOD: The roots, stems, leaves, and flowers of EBSC samples were analyzed and compared based on HPLC fingerprints combined with chemometrics, including hierarchical cluster analysis (HCA), principal component analysis (PCA), partial least-squares discriminant analysis (PLS-DA), and back propagation artificial neural network (BP-ANN). Chemical markers were screened using PLS-DA, and the contents of representative ingredients were determined by an HPLC method. RESULTS: The HCA and PCA provided clear discrimination of roots, stems, leaves, and flowers. Moreover, the PLS-DA model and BP-ANN were established to verify the classification results and showed a greater ability to predict new samples. Four representative chemical markers were screened out, and the content of these markers in flowers and leaves was higher than that in stems and roots, and the difference was significant. CONCLUSIONS: Combining HPLC fingerprinting and multicomponent chemical pattern recognition technology can be used to distinguish different parts of EBSC. The results indicated that brevilin A, quercetin, rutin, and chlorogenic acid, the important active components of EBSC, were mainly present in the leaves and flowers. This is of great significance for the differentiation and identification of the different medicinal parts of EBSC, as well as for the effectiveness of drug usage in clinical practice. HIGHLIGHTS: HP LC was used to quickly obtain chemical for fingerprint analysis. HCA, P CA, P LS-DA were used to visualize the discrimination of roots, stems, leaves and flowers of EBSC. P LS-DA model was established to verify the classification results and obtained the chemical marker. BP-ANN model was used to further improve the discrimination accuracy.
Asunto(s)
Flores , Hojas de la Planta , Cromatografía Líquida de Alta Presión/métodos , Flores/química , Medicina Tradicional China , Hojas de la Planta/química , Raíces de PlantasRESUMEN
Two undescribed butenolide derivatives, asperteretal J (1) and K (2), together with 13 known ones (3-15) were isolated from an endophytic fungus Aspergillus terreus SGP-1, the fermentation product of which exhibited selective inhibitory activity toward butyrylcholinesterase. The structures of the new compounds were elucidated based on HRMS and NMR data, and the absolute configurations were determined by specific optical rotation comparison. All compounds were evaluated for cholinesterase inhibitory effects with galantamine as a positive control. Compounds 4-8 selectively inhibited butyrylcholinesterase with IC50 values of 18.4-45.8 µM in a competitive manner, with Ki values of 12.3-38.2 µM. The structure-activity relationship was discussed. Molecular docking and dynamic simulation of the inhibitor-enzyme complex were performed to better understand the interactions.
RESUMEN
Betel nut, the fruit of Areca catechu L, has a long medical history in Southeast Asia. It is native to Malaysia and is cultivated and processed extensively in subtropical regions, such as South China and India. Betel nut almost appears as a "snack" in various occasions in most parts of China. Clinically, betel nut can play a certain pharmacology role and was used in malaria, ascariasis, arthritis, enterozoic abdominalgia, stagnation of food, diarrhea, edema, and beriberi. The nervous excitement of betel nut chewing has made it gradually become popular. However, chewing betel nut can induce oral submucosal fibrosis (OSF) and oral cancer (OC). At the same time, long-term chewing of betel nut also causes inhaled asthma, sperm reducing, betel quid dependence (BQD), and uterine and esophageal cancers. The main components of processed betel nut are the goal of this review. This study will mainly start from the pharmacological activity and toxicology study of betel nut in recent years, aiming to seek its advantages and disadvantages. In the meantime, this study will analyze and emphasize that betel nut and arecoline are the high-risk factors for oral cancer, which should arouse attention and vigilance of the public.
RESUMEN
Malignant tumor is a disease with high mortality. Traditional treatment methods have many disadvantages, such as side-effects, drug resistance. Because cyclin-dependent kinase 1 (CDK1) plays an indispensable role in cell cycle regulation, it became an attractive target in rational anti-cancer drug discovery. Herein, we reported a series of baicalein derivatives, which remarkably repressed the proliferation of MCF-7 tumor cells and the activity of CDK1/cyclin B kinase. Among them, compound 4a displayed better inhibition rate than flavopiridol against MCF-7 proliferation at the concentration of 50 µg/ml, comparable to compound CGP74514A, while compound 3o possessed the best activity against CDK1/cyclin B kinase (IC50 = 1.26 µM). The inhibitory activities toward the kinase well correlated with anti-proliferative activities. Molecular docking results suggested that compound 3o can interact with the key amino acid residues, E81, L83, and D146, of CDK1 through hydrogen bond just like flavopiridol does. And it can also form an extra hydrogen bond with D146 by its introduced 7-acrylate group, which flavopiridol does not have. These findings proved that baicalein derivatives can be used as CDK1 inhibitors fighting against cancer.
Asunto(s)
Antineoplásicos/síntesis química , Proteína Quinasa CDC2/antagonistas & inhibidores , Flavanonas/síntesis química , Inhibidores de Proteínas Quinasas/síntesis química , Antineoplásicos/farmacología , Apoptosis/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Ciclina B/metabolismo , Ensayos de Selección de Medicamentos Antitumorales , Flavanonas/farmacología , Flavonoides/farmacología , Flavonoides/normas , Humanos , Células MCF-7 , Simulación del Acoplamiento Molecular , Piperidinas/farmacología , Piperidinas/normas , Unión Proteica , Inhibidores de Proteínas Quinasas/farmacología , Relación Estructura-ActividadRESUMEN
BACKGROUND: Modified Yunu-Jian (mYJ), a Chinese medicine (CM) formula, is thought to clear heat and nourish yin. Clinically, it is often used to treat oral inflammation. However, its efficacy remains controversial. METHODS: The study aims to evaluate the efficacy and safety of mYJ for treating patients with periodontitis. We searched electronic databases (PubMed, Cochrane Library, Embase, China National Knowledge Infrastructure, Wanfang database, VIP database, and CBM) from inception to December 2020. Only randomized controlled trials investigating modified Yunu-Jian, with or without other medications, against controlled intervention in the treatment of patients diagnosed with periodontitis were included. Both Review Manager 5.3 and Stata 15.0 software were used to analyze the data. The Cochrane Collaborations risk of bias tool was used to assess the quality of the methods. RESULTS: Thirteen clinical trials, involving 1179 participants, were included in our investigation. The results showed that the combination of mYJ with western medicine improved the total effective rate compared with western medicine alone (RR = 1.17, 95% CI (1.12, 1.23), P < 0.00001). The sensitivity analysis and Harbord's test (P = 0.255) both showed that the results were statistically robust. Moreover, the periodontal indexes (GI, SBI, PLI, and PD; P < 0.00001) of patients with periodontitis were also significantly improved after receiving the combined therapy. No serious adverse reactions were observed in the experimental groups. CONCLUSIONS: Evidence from the meta-analysis suggested that mYJ appeared to be effective and relatively safe for treating periodontitis. Because of the low quality of the methods used in the included RCTs, further studies with larger sample sizes and well-designed models are required to confirm our findings.
RESUMEN
The purpose of this study was to investigate the influences of the polysaccharides derived from Glycyrrhiza uralensis Fisch. (GCPs) on aconitine (AC), hypaconitine (HA), and benzoylmesaconine (BMA) from Aconitum carmichaelii Debx. and to explore potential interaction mechanisms. Biopharmaceutical properties in vitro including stability, aqueous solubility and permeability were determined by UPLC. Pharmacokinetic parameters in vivo were determined using UPLC-MS/MS. Phase solubility analysis, UV-vis spectrophotometry and differential scanning calorimetry (DSC) were used to explore potential interaction mechanisms. The results showed that GCPs could increase the stabilities of three alkaloids and solubilities of AC and HA, significantly decrease permeabilities of three alkaloids. The pharmacokinetic studies demonstrated that, after combination with GCPs, AC exhibited a higher Cmax value, shorter t0.5, higher elimination rate and greater area under the concentration-time curve (AUC) value compared to free AC. GCPs also improved the Cmax, t0.5, AUC(0-tn) and AUC(0-∞) values of HA to play a therapeutic role, and improved the t0.5 and AUC(0-∞) values of BMA to prolong the pharmacological effect and increase bioavailability. In addition, the results for the apparent formation constants and DSC analysis showed that an inclusion complex could be formed between GCPs and AC, GCPs and HA, and GCPs and BMA.
Asunto(s)
Alcaloides/farmacología , Glycyrrhiza uralensis/química , Extractos Vegetales/farmacología , Polisacáridos/farmacología , Alcaloides/química , Alcaloides/farmacocinética , Animales , Cromatografía Líquida de Alta Presión , Concentración de Iones de Hidrógeno , Masculino , Estructura Molecular , Permeabilidad , Extractos Vegetales/química , Extractos Vegetales/farmacocinética , Polisacáridos/química , Polisacáridos/farmacocinética , Ratas , Solubilidad , Espectrometría de Masas en TándemRESUMEN
Er-Zhi-Wan (EZW) is a traditional Chinese medicine with many clinical applications and used as a health product in East Asia. Five active ingredients (salidroside, specnuezhenide, nuezhenoside, luteolin, and oleanolic acid) were screened out from EZW to develop an in vitro rapid evaluation method for the classification of in vivo drug absorption behavior by biopharmaceutics classification system (BCS). Ultra-performance liquid chromatography was used for quantitative analysis. Solubility and permeability were assayed by equilibrium solubility and multiple models: everted rat intestinal sac model, cultured Caco-2 cells, octanol-water partition coefficient (LogP) method. The BCS properties of drugs were predicted using software applications, and the correlations of measured and predicted values of factors affecting oral drug absorption were calculated. The results were verified by measuring the absolute bioavailability of the active ingredients. Salidroside, specnuezhenide, and nuezhenoside were classified as BCS class III drugs, and luteolin was classified as a BCS class III/I drug because of the difference in LogP and intestinal permeability. Oleanolic acid was classified as a BCS class II/IV drug in acidic media and BCS class I/III drug in other media. Overall, EZW may be classified as a BCS class III drug, and permeability was identified as the primary factor limiting absorption. The results provide a novel method for the evaluation of the in vivo absorption of oral traditional Chinese medicines.