Bioactive Materials
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2022
·
IF 16.874
Limei Li,Qing Li,Li Gui,Yi Deng,Lu Wang,Jianlin Jiao,Yingrui Hu,Xiaoqian Lan,Jianhong Hou,Yao Li,Di Lu
Wound healing is a highly orchestrated process involving a variety of cells, including immune cells. Developing immunomodulatory biomaterials for regenerative engineering applications, such as bone regeneration, is an appealing strategy. Herein, inspired by the immunomodulatory effects of gastrodin (a bioactive component in traditional Chinese herbal medicine), a series of new immunomodulatory gastrodin-comprising biodegradable polyurethane (gastrodin-PU) and nano-hydroxyapatite (n-HA) (gastrodin-PU/n-HA) composites were developed. RAW 264.7 macrophages, rat bone marrow mesenchymal stem cells (rBMSCs), and human umbilical vein endothelial cells (HUVECs) were cultured with gastrodin-PU/n-HA containing different concentrations of gastrodin (0.5%, 1%, and 2%) to decipher their immunomodulatory effects on osteogenesis and angiogenesis in vitro . Results demonstrated that, compared with PU/n-HA, gastrodin-PU/n-HA induced macrophage polarization toward the M2 phenotype, as evidenced by the higher expression level of pro-regenerative cytokines (CD206, Arg-1) and the lower expression of pro-inflammatory cytokines (iNOS). The expression levels of osteogenesis-related factors (BMP-2 and ALP) in the rBMSCs and angiogenesis-related factors (VEGF and BFGF) in the HUVECs were significantly up-regulated in gastrodin-PU/n-HA/macrophage-conditioned medium. The immunomodulatory effects of gastrodin-PU/n-HA to reprogram macrophages from a pro-inflammatory (M1) phenotype to an anti-inflammatory and pro-healing (M2) phenotype were validated in a rat subcutaneous implantation model. And the 2% gastrodin-PU/n-HA significantly decreased fibrous capsule formation and enhanced angiogenesis. Additionally, 2% gastrodin-PU/n-HA scaffolds implanted in the rat femoral condyle defect model showed accelerated osteogenesis and angiogenesis. Thus, the novel gastrodin-PU/n-HA scaffold may represent a new and promising immunomodulatory biomaterial for bone repair and regeneration.
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EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES
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2021
·
IF 4.384
Kunkun Guo,Xin Wang,Baolin Huang,Xiaoyun Wu,Shuimei Shen,Zimin Lin,Jie Zhao,Zheng Cai
Gastrodin is the main active constituent of Tianma, a famous traditional Chinese herbal medicine. Our previous research has found that gastrodin is absorbed rapidly in the intestine by the sodium-dependent glucose transporter 1 (SGLT1). In the current report, gastrodin is the best glycoside compound absorbed via the glucose transport pathway. This study aimed to investigate the effect of the slight difference in chemical structure on the drug intestinal absorption via the glucose transport pathway. Traditional biopharmaceutical and computer-aided molecular docking methods were used to evaluate the intestinal absorption characteristics of three gastrodin analogues, namely, salicin , arbutin and 4-methoxyphenyl-β-D-glucoside (4-MG). The oil–water partition coefficient (log P ) experiments showed that the log P values of the gastrodin analogues followed the order: 4-MG > salicin > arbutin. In vitro Caco-2 cell transport experiments demonstrated that the apparent permeability coefficient ( P app ) value of arbutin was higher than those of salicin and 4-MG. In situ single-pass intestinal perfusion experiments showed that the absorption of arbutin and 4-MG was better than that of salicin and that the absorption of the three compounds in the colon was lower than that in the small intestine. Quantitative real-time polymerase chain reaction results confirmed that the SGLT1 mRNA expression in the small intestine of rats was obviously higher than that in the colon of rats. In vivo pharmacokinetic experiments demonstrated that the oral bioavailability of salicin was lower than those of arbutin and 4-MG. In vitro and in vivo experiments showed that glucose or phlorizin (SGLT1 inhibitor) could decrease the intestinal absorption of the three compounds. Contrary to the above biopharmaceutical experiments, the computer-aided molecular docking test showed that the affinity of salicin to the v SGLT receptor was stronger than those of arbutin and 4-MG. In conclusion, the SGLT1 can facilitate the intestinal absorption of salicin, arbutin and 4-MG, and the slight difference in chemical structure can affect absorption.
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Chinese Medicine
·
2024
·
IF 5.3
MingShan Zhang,YuFei Zhang,JingGang He,XinRui Wang,YinYin Wang,LinYan Li,Ling Tao,Min Zhang,Xiangchun Shen
Background Diabetic cardiomyopathy (DCM), characterized by myocardial fibrosis, is a major cause of mortality and morbidity in diabetic patients; the inhibition of cardiac fibrosis is a fundamental strategy for treating DCM. Gastrodin (GAS), a compound extracted from Gastrodia elata protects against DCM, but the molecular mechanism underlying its antifibrotic effect has not been elucidated. Methods In vivo, the effects of GAS were investigated using C57BL/6 mice with DCM, which was induced by administering a high-sugar, high-fat (HSF) diet and streptozotocin (STZ). We assessed the cardiac function in these mice and detected histopathological changes in their hearts and the degree of cardiac fibrosis. In vitro, neonatal rat cardiac fibroblasts (CFs) were transformed into myofibroblasts by exposing them to high glucose combined with high palmitic acid (HG-PA), and CFs were induced by pEX-1 (pGCMV/MCS/EGFP/Neo) plasmid-mediated overexpression of KLK8, which contains the rat KLK8 gene. The KLK8 siRNA was knocked down to study the effects of GAS on CF differentiation, collagen synthesis, and cell migration by specific mechanisms of action of GAS. Results GAS attenuated pathological changes in the hearts of DCM mice, rescued impaired cardiac function, and attenuated cardiac fibrosis. Additionally, the results of molecular docking analysis showed that GAS binds to kinin-releasing enzyme-related peptidase 8 (KLK8) to inhibit the increase in protease-activated receptor-1 (PAR-1), thus attenuating myocardial fibrosis. Specifically, GAS attenuated the transformation of neonatal rat CFs to myofibroblasts exposed to HG-PA. Overexpressing KLK8 promoted CF differentiation, collagen synthesis, and cell migration, and KLK8 siRNA attenuated HG-PA-induced CF differentiation, collagen synthesis, and cell migration. Further studies revealed that a PAR-1 antagonist, but not a PAR-2 antagonist, could attenuate CF differentiation, collagen synthesis, and cell migration. Additionally, GAS inhibited KLK8 upregulation and PAR1 activation, thus blocking the differentiation, collagen synthesis, and cell migration of HG-PA-exposed CFs and triggering TGF-β1/Smad3 signaling. Conclusion GAS alleviated pathological changes in the hearts of DCM model mice induced by an HSF diet combined with STZ. KLK8 mediated HG-PA-induced differentiation, collagen synthesis, and the migration of CFs. GAS attenuated the differentiation, collagen synthesis, and migration of CFs by inhibiting the KLK8-PAR1 signaling axis, a process in which TGF-β1 and Smad3 are involved. Graphical Abstract Supplementary Information The online version contains supplementary material available at 10.1186/s13020-024-01035-4.
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Bioactive Materials
·
2020
·
IF 8.724
Meng Zheng,Jiazhi Guo,Qing Li,Jian Yang,Yi Han,Hongcai Yang,Mali Yu,Lianmei Zhong,Di Lu,Limei Li,Lin Sun
Vascular grafts must avoid negative inflammatory responses and thrombogenesis to prohibit fibrotic deposition immediately upon implantation and promote the regeneration of small diameter blood vessels (<6 mm inner diameter). Here, polyurethane (PU) elastomers incorporating anti-coagulative and anti-inflammatory Gastrodin were fabricated. The films had inter-connected pores with porosities equal to or greater than 86% and pore sizes ranging from 250 to 400 μm. Incorporation of Gastrodin into PU films resulted in desirable mechanical properties, hydrophilicity, swelling ratios and degradation rates without collapse. The released Gastrodin maintained bioactivity over 21 days as assessed by its anti-oxidative capability. The Gastrodin/PU had better anti-coagulation response (less observable BSA, fibrinogen and platelet adhesion/activation and suppressed clotting in whole blood). Red blood cell compatibility, measured by hemolysis, was greatly improved with 2Gastrodin/PU compared to other Gastrodin/PU groups. Notably, Gastrodin/PU upregulated anti-oxidant factors Nrf2 and HO-1 expression in H 2 O 2 treated HUVECs, correlated with decreasing pro-inflammatory cytokines TNF-α and IL-1β in RAW 264.7 cells. Upon implantation in a subcutaneous pocket, PU was encapsulated by an obvious fibrous capsule, concurrent with a large amount of inflammatory cell infiltration, while Gastrodin/PU induced a thinner fibrous capsule, especially 2Gastrodin/PU. Further, enhanced adhesion and proliferation of HUVECs seeded onto films in vitro demonstrated that 2Gastrodin/PU could help cell recruitment, as evidenced by rapid host cell infiltration and substantial blood vessel formation in vivo . These results indicate that 2Gastrodin/PU has the potential to facilitate blood vessel regeneration, thus providing new insight into the development of clinically effective vascular grafts.
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MEDICINAL CHEMISTRY RESEARCH
·
2016
·Vol. 26
·期 2
·405-413
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IF 1.436
Wang Jie,Chan Calvin,Huang Feng-wen,Xie Jiang-feng,Xu Hong,Ho Ka-wai,Zheng Sheng-gang,Hu Zhang-li,Lu Jun,He Zhen-dan
The interaction of gastrodin with pepsin has been investigated by enzyme activity assay, fluorescence, UV–Visible, circular dichroism spectra, and molecular docking. The pepsin activity results suggest that gastrodin is an inhibitor of pepsin. The fluorescence experiments show that gastrodin can quench the fluorescence of pepsin via a static quenching process. The thermodynamic analysis suggests that hydrophobic interaction is the main force between pepsin and gastrodin. UV–Visible and circular dichroism spectra studies suggest that the binding of gastrodin leads to a loosening and unfolding of pepsin backbone with partial α-helix being transformed into β-sheet. All these experimental results have been validated by docking studies, which further show that besides hydrophobic interaction, hydrogen bond also help stabilize the gastrodin–pepsin complex. The results reveal the potential to develop the natural compound gastrodin for the treatment of diseases related to the excessive activity of pepsin.
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MOLECULES
·
2018
·Vol. 23
·期 2
·270
·
IF 3.098
Chunlan Tang,Bingchu Wu,Jinyi Wu,Zheng Zhang,Bocheng Yu
Gastrodia elataBlume (G. elata), a traditional Chinese medicine, is widely used for treatment of various neuro dysfunctions. However, its quality control is still limited to the determination of gastrodin. In the present study, two novel strategies based on quantitative evaluation of total gastrodin and gastrodigenin with base hydrolysis and total gastrodigenin with base-enzymatic hydrolysis followed by HPLC-FLD were put forward and successfully applied to evaluate the quality of 47 batches ofG. elatafrom eight localities. Meanwhile, a systematic comparison of the novel strategy with the multiple markers and the Pharmacopeia method was performed. The results showed that the parishins category could be completely hydrolyzed to gastrodin by sodium hydroxide solution, and gastrodin could further utterly hydrolyze to gastrodigenin with β-d-glucosidase buffer solution. The contents of total gastrodin and gastrodigenin ranged from 1.311% to 2.034%, and total gastrodigenin from 0.748% to 1.120% at the eight localities. From the comparison, we can conclude that the two novel strategies can comprehensively reveal the characteristics of overall active ingredients inG. elatafor quality control. The present study provides a feasible and credible strategy for the quality control ofG. elata, suggesting a revision of the latest Chinese Pharmacopoeia or European Pharmacopoeia methods for the modernization ofG. elatause.Keywords:total gastrodin;total gastrodigenin;base-enzymatic hydrolysis;HPLC-FLD
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INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
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2019
·Vol. 20
·期 8
·1984
·
IF 4.183
Owais Ahmad,Bing Wang,Kejian Ma,Yang Deng,Maoru Li,Liping Yang,Yuqi Yang,Jingyun Zhao,Lijun Cheng,Qinyang Zhou,Jing Shang
Non-alcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) is the most common chronic liver disease in the world. However, there are still no drugs for NAFLD/NASH in the market. Gastrodin (GAS) is a bioactive compound that is extracted fromGastrodia elata,which is used as an active compound on nervous system diseases. Recent reports showed that GAS andGastrodia elatapossess anti-oxidant activity and lipid regulating effects, which makes us curious to reveal the anti-NAFLD effect of GAS. A high cholesterol diet (HCD) was used to induce a NAFLD larval zebrafish model, and the lipid regulation and anti-oxidant effects were tested on the model. Furthermore, qRT-PCR studied the underlying mechanism of GAS. To conclude, this study revealed a lipid regulation and anti-oxidant insights of GAS on NAFLD larval zebrafish model and provided a potential therapeutic compound for NAFLD treatment.Keywords:non-alcoholic fatty liver disease;non-alcoholic steatohepatitis;larval zebrafish;Gastrodin
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BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
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2021
·Vol. 85
·期 4
·798-804
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IF 2.043
Yang Yanfei,Li Yabin,Han Jinli,Wang Yanfen
Gastrodin has shown the potential as an anticonvulsant. Epilepsy is a neurological disease with significant effects in children. In the current study, the therapeutic potential of gastrodin in handling pediatric epilepsy was explored by focusing on the AMPK/PPARα pathway. Three-week-old Sprague–Dawley rats were subjected to lithium-pilocarpine method to induce epileptic symptoms and then administrated with gastrodin. The effects of gastrodin on rats were first assessed using electroencephalogram (EEG) recording, Racine classification, Morris water maze test, and histological staining. The levels of BDNF and NGF, and the activity of AMPK/PPARα were measured. Based on the results of EEG, behavior analyses, and histological staining, epileptic symptoms were significantly alleviated by gastrodin. Moreover, the administration of gastrodin also suppressed the levels of BDNF and NGF, and activated the AMPK/PPARα pathway. In conclusion, our results demonstrated that gastrodin contributed to the alleviation of pediatric epilepsy by activating AMPK/PPARα signaling transduction.
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DRUG DEVELOPMENT AND INDUSTRIAL PHARMACY
·
2025
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IF 2.2
Jie Wang,Xuemei Gu,Xia Gao,Huifang Gao,Jing Chen,Zhiyang Lv,Lei Chen,Yunzhu Xu,Xialin Chen,Liang Cao,Zhenzhong Wang,Jinzhou Tian,Wei Xiao
Objective Gastrodin (GA) and ferulic acid (FA) are the main active ingredients of the traditional Chinese medicine Da Chuan Xiong formula for migraine treatment. This study aimed to develop a gastrodin-ferulic acid co-loaded liposomal gel patch (GA/FA-Lip-GelP) as a transdermal drug delivery system (TDDS) for migraine management.Significance TDDS overcomes the limitations of first-pass metabolism associated with oral administration and is particularly suitable for migraine patients experiencing nausea and vomiting. The system contains three key components: sodium polyacrylate (hydrophilic gel matrix), laurocapram (Azone, permeation enhancer), and GA/FA-loaded liposomes (nanocarrier). This combination enables effective systemic drug delivery.Methods The GA/FA-Lip was prepared using central composite design optimization. Subsequently, the GA/FA-Lip-GelP formulation was developed through single-factor screening and Box-Behnken designs. The optimized GA/FA-Lip-GelP was systematically evaluated via in vitro release studies, ex vivo transdermal permeation experiments, and in vivo pharmacokinetic/pharmacodynamic analyses.Results The GA/FA-Lip was prepared via thin-film dispersion, forming uniform spherical nanoparticles (146.34 ± 1.35 nm). These nanoparticles achieved high encapsulation efficiencies (GA: 85.26 ± 1.90%; FA: 86.92 ± 2.23%) and demonstrated excellent stability. The final GA/FA-Lip-GelP demonstrated optimal adhesion, sustained drug release, and content uniformity under low-temperature storage. Compared to oral administration and non-liposomal gel patches, GA/FA-Lip-GelP showed significantly enhanced transdermal permeation, improved pharmacokinetic profiles, and superior therapeutic efficacy.Conclusions GA/FA-Lip-GelP demonstrated potential as an effective migraine treatment by overcoming first-pass metabolism, thereby improving bioavailability and enabling sustained drug release.
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JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
·
2024
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IF 1.9
Congcong Zhao,Qiao Hu,Xu Zhang,Hao Yan,Jin Li,Fang Chen,Zhenyu Zuo
Gastrodia elata is a well-known Asian traditional herb with gastrodin (GAS; p-hydroxymethylbenzene-β-d-glucopyranoside) as its active ingredient. It is a challenging task to efficiently separate the active ingredient gastrodin from Gastrodia elata by simple procedure. The results of computer molecular simulation & UV-vis spectroscopy showed that water-soluble 1-vinyl-3-tetradecylimidazole bromide([C14VIM+] [Br-]) was selected as the best ionic liquid functional monomer compared with methacrylic acid(MAA), acrylic acid(AA), 3-(2-carboxyethyl)-1-vinylimidazolium bromide ionic liquid (imidazole propionate, [COOHpvimBr]), and dehydroabietic acid [2-(acryloyloxy)ethyl] ester (DAAEE). The force between [C14VIM+] [Br-] and GAS (with multiple hydroxyl groups) is stronger than other monomers with more polar groups. The molecular imprinted polymers (MIPs) and non- molecular imprinted polymers (NIPs) with high selectivity to gastrodin were synthesized utilizing ([C14VIM+] [Br-]) as a novel functional monomer. The polymer was characterized by infrared spectrum, scanning electron microscope, specific surface area tester and thermosgravimetric analyser(TGA). The adsorption performance of the polymer was investigated by adsorption kinetics experiment and static adsorption experiment. Among different eluents, the content of gastrodin in eluent (70% ethanol) significantly increased compared with it in plant extract by the MIPs-solid phase extraction (SPE)-HPLC. The recoveries of the spiked samples for the GAS were 97.75–103.43%, with relative standard deviation values lower than 2.88%. This novel [C14VIM+] [Br-]-based MIP was a potential separation material for gastrodin. The graphical abstract was shown below.
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Frontiers in Bioscience-Landmark
·
2023
·Vol. 28
·期 5
·93
·
IF 3.1
Chenglong Sun,Wenhao Zheng,Linjie Wang,Quan Du
Background: Gastrodin (Gas) exhibits anti-inflammatory properties against diseases associated with the central nervous system (CNS). This study aimed to investigate the potential neuroprotective role of Gas in traumatic brain injury (TBI). Methods: A rat TBI model was established in male adult Sprague-Dawley (SD) rats by controlled cortical impingement (CCI), and lipopolysaccharide (LPS) was applied to induce the activation of BV2 microglia and HT22 hippocampal neurons. Neurological deficits, motor function and brain water content were evaluated in TBI rats. TUNEL and Nissl’s staining were applied to measure neuronal degeneration and apoptosis. Microglial activation, the mRNA and protein profiles of pro-inflammatory cytokines were tested by immunohistochemistry (IHC), quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) and enzyme-linked immunosorbent assay (ELISA), respectively. Results: Gas significantly reduced neurological deficits, cerebral edema, and neuronal apoptosis and improved motor function in TBI mice. In addition, Gas inactivated microglia and blocked the production of pro-inflammatory cytokines on the damaged side of the TBI rat brain. In vitro, Gas attenuated BV2 microglia inflammation and reduced HT22 hippocampal neuronal apoptosis. On the other hand, Gas activated the PKA/CREB/BDNF pathway both in vivo and in vitro. Conclusions: Gas blocks microglial activation-mediated inflammation through the PKA/CREB/BDNF pathway, thereby improving neurobehavioral function after TBI, which provides a potential therapeutic benefit for treating TBI.
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PHYTOMEDICINE
·
2023
·
IF 7.9
Chao Ma,Chunran Zhu,Yajun Zhang,Mei Yu,Yizhi Song,Yulong Chong,Yan Yang,Chan Zhu,Yucui Jiang,Changming Wang,Shuo Cheng,Keke Jia,Guang Yu,Jia Li,Zongxiang Tang
Background Increasing evidence highlights the involvement of metabolic disorder and calcium influx mediated by transient receptor potential channels in migraine; however, the relationship between these factors in the pathophysiology of migraine remains unknown. Gastrodin is the major component of the traditional Chinese medicine Tianma, which is extensively used in migraine therapy. Purpose Our work aimed to explore the analgesic action of gastrodin and its regulatory mechanisms from a metabolic perspective. Methods/results After being treated with gastrodin, the mice were given nitroglycerin (NTG) to induce migraine. Gastrodin treatment significantly raised the threshold of sensitivity in response to both mechanical and thermal stimulus evidenced by von Frey and hot plate tests, respectively, and decreased total contact numbers in orofacial operant behavioral assessment. We found that the expression of transient receptor potential melastatin 2 (TRPM2) channel was increased in the trigeminal ganglion (TG) of NTG-induced mice, resulting in a sustained Ca 2+ influx to trigger migraine pain. The content of succinate, a metabolic biomarker, was elevated in blood samples of migraineurs, as well as in the serum and TG tissue from NTG-induced migraine mice. Calcium imaging assay indicated that succinate insult elevated TRPM2-mediated calcium flux signal in TG neurons. Mechanistically, accumulated succinate upregulated hypoxia inducible factor-1α (HIF-1α) expression and promoted its translocation into nucleus, where HIF-1α enhanced TRPM2 expression through transcriptional induction in TG neurons, evidenced by luciferase reporter measurement. Gastrodin treatment inhibited TRPM2 expression and TRPM2-dependent Ca 2+ influx by attenuating succinate accumulation and downstream HIF-1α signaling, and thereby exhibited analgesic effect. Conclusion This work revealed that succinate was a critical metabolic signaling molecule and the key mediator of migraine pain through triggering TRPM2-mediated calcium overload. Gastrodin alleviated NTG-induced migraine-like pain via inhibiting succinate/HIF-1α/TRPM2 signaling pathway in TG neurons. These findings uncovered the anti-migraine effect of gastrodin and its regulatory mechanisms from a metabolic perspective and provided a novel theoretical basis for the analgesic action of gastrodin.
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