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Jiao K, Sun M, Jia W, Liu Y, Wang S, Yang Y, Dai Z, Liu L, Cheng Z, Liu G, Luo Y. The polycaprolactone and silk fibroin nanofibers with Janus-structured sheaths for antibacterial and antioxidant by loading Taxifolin. Heliyon 2024; 10:e33770. [PMID: 39040317 PMCID: PMC11261843 DOI: 10.1016/j.heliyon.2024.e33770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/24/2024] [Accepted: 06/26/2024] [Indexed: 07/24/2024] Open
Abstract
Electrospinning is a widely recognized method for producing Janus or core-shell nanofibers. In this study, nanofibrous membranes were fabricated through co-axial electrospinning utilizing polycaprolactone (PCL) and silk fibroin (SF) as the Janus shell, and taxifolin (TAX) and SF as the core. The resulting nanofibers had diameters of 816 ± 161 nm and core diameters of 73 ± 5 nm. The morphology and properties of the PCL-SF@SF/TAX nanofibers were subsequently analyzed. The results demonstrated that the nanofibrous membranes achieved physical and chemical characteristics potential for tissue engineering and drug delivery. Specifically, the membranes exhibited a Young's modulus of 9.64 ± 0.29 MPa, a water contact angle of 79.1 ± 1.3°, and a weight loss of 17.3 ± 1.0 % over a period of 28 days. The incorporation of TAX endowed the membranes with antibacterial properties, effectively combating Escherichia coli and Staphylococcus aureus. Furthermore, the membranes demonstrated antioxidant capabilities, with a DPPH radical scavenging efficiency of 38.5 ± 5.6 % and a Trolox-equivalent antioxidant capacity of 0.24 ± 0.01 mM. The release of the antioxidant was sustained over 28 days, following first-order release kinetics. The nanofibrous membranes, referred to as PSST, exhibit promising potential for use as biomaterials, characterized by their antibacterial activity, antioxidant and cytocompatibility.
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Affiliation(s)
- Kun Jiao
- The First Hospital of Jilin University, Changchun, 130000, China
| | - Maolei Sun
- Department of Stomatology, The Second Hospital of Jilin University, Changchun, 130000, China
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
| | - Wenyuan Jia
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Yun Liu
- The First Hospital of Jilin University, Changchun, 130000, China
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
| | - Shaoru Wang
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, 130000, China
| | - Yuheng Yang
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Zhihui Dai
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, 130000, China
| | - Liping Liu
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
- Department of Prosthodontics, Hospital of Stomatology, Jilin University, Changchun, 130000, China
| | - Zhiqiang Cheng
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
- College of Resources and Environment, Jilin Agriculture University, Changchun, 130000, China
| | - Guomin Liu
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characterisitic Resource of Jilin Province, Changchun, 130000, China
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Yungang Luo
- The First Hospital of Jilin University, Changchun, 130000, China
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Shi H, Ma D, Wu D, Qiu X, Yang S, Wang Y, Xiao L, Ji X, Zhang W, Han S, Huo P, Dong J, Kong X, Guan X, Zhang D. A pH-responsive, injectable and self-healing chitosan-coumarin hydrogel based on Schiff base and hydrogen bonds. Int J Biol Macromol 2024; 255:128122. [PMID: 37984570 DOI: 10.1016/j.ijbiomac.2023.128122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 10/25/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023]
Abstract
Smart hydrogels have shown great potential applications in disease treatment due to their controlled and local drug-release ability. Herein, a smart hydrogel with pH-responsive, injectable, and self-healing properties for controlled release of taxifolin (TFL) was prepared by freezing-thawing and photo-crosslinking methods. The crosslinking network of hydrogels (CS-CA hydrogels) was constructed by the hydrogen bonds, Schiff base bonds, and cyclobutane rings using chitosan (CS) and coumarin (CA) as raw materials. The CS-CA hydrogel demonstrated a compressive strength of 1.04 MPa, a self-healing efficiency of 99.9 %, and could maintain structural and functional integrity after injection. In addition, the drug release rate and shape of the CS-CA hydrogels were tunable due to its pH sensitivity. The TFL cumulative release reached 60 % within 12 h at pH = 4, and after equilibration, the cumulative release of TFL at pH = 4 (80 %) was significantly higher than at pH = 9.2 (50 %). The CCK8 experiment showed that the resulting hydrogel had no cytotoxicity. Meanwhile, subcutaneous implantation experiments in mice showed that the CS-CA hydrogels had favorable biodegradability and compatibility.
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Affiliation(s)
- Haolei Shi
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Dongxu Ma
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Di Wu
- Hospital of Northeast Forestry University, Northeast Forestry University, Harbin 150040, PR China
| | - Xiao Qiu
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Shuai Yang
- School of Materials Science and Engineering, North University of China, Taiyuan 030051, PR China
| | - Yingying Wang
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Lei Xiao
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Xinyao Ji
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Wei Zhang
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Shuaiyuan Han
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Pengfei Huo
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Jidong Dong
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China.
| | - Xianzhi Kong
- Institute of Petrochemistry, Heilongjiang Academy of Sciences, Harbin 150040, PR China.
| | - Xue Guan
- Animal Laboratory Center, The Second Affiliated Hospital of Harbin Medical University, Harbin 150081, PR China.
| | - Dawei Zhang
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China.
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Christaki S, Spanidi E, Panagiotidou E, Athanasopoulou S, Kyriakoudi A, Mourtzinos I, Gardikis K. Cyclodextrins for the Delivery of Bioactive Compounds from Natural Sources: Medicinal, Food and Cosmetics Applications. Pharmaceuticals (Basel) 2023; 16:1274. [PMID: 37765082 PMCID: PMC10535610 DOI: 10.3390/ph16091274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/30/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Cyclodextrins have gained significant and established attention as versatile carriers for the delivery of bioactive compounds derived from natural sources in various applications, including medicine, food and cosmetics. Their toroidal structure and hydrophobic cavity render them ideal candidates for encapsulating and solubilizing hydrophobic and poorly soluble compounds. Most medicinal, food and cosmetic ingredients share the challenges of hydrophobicity and degradation that can be effectively addressed by various cyclodextrin types. Though not new or novel-their first applications appeared in the market in the 1970s-their versatility has inspired numerous developments, either on the academic or industrial level. This review article provides an overview of the ever-growing applications of cyclodextrins in the delivery of bioactive compounds from natural sources and their potential application benefits.
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Affiliation(s)
- Stamatia Christaki
- Laboratory of Food Chemistry and Biochemistry, School of Agriculture, Aristotle University of Thessaloniki (AUTH), 54124 Thessaloniki, Greece; (S.C.); (A.K.); (I.M.)
| | - Eleni Spanidi
- APIVITA SA, Industrial Park, Markopoulo, 19003 Athens, Greece; (E.S.); (E.P.); (S.A.)
| | - Eleni Panagiotidou
- APIVITA SA, Industrial Park, Markopoulo, 19003 Athens, Greece; (E.S.); (E.P.); (S.A.)
| | - Sophia Athanasopoulou
- APIVITA SA, Industrial Park, Markopoulo, 19003 Athens, Greece; (E.S.); (E.P.); (S.A.)
| | - Anastasia Kyriakoudi
- Laboratory of Food Chemistry and Biochemistry, School of Agriculture, Aristotle University of Thessaloniki (AUTH), 54124 Thessaloniki, Greece; (S.C.); (A.K.); (I.M.)
| | - Ioannis Mourtzinos
- Laboratory of Food Chemistry and Biochemistry, School of Agriculture, Aristotle University of Thessaloniki (AUTH), 54124 Thessaloniki, Greece; (S.C.); (A.K.); (I.M.)
| | - Konstantinos Gardikis
- APIVITA SA, Industrial Park, Markopoulo, 19003 Athens, Greece; (E.S.); (E.P.); (S.A.)
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Boshkayeva AK, Omarova RA, Ordabayeva SK, Serikbayeva AD, Umurzakhova GG, Massakbayev AJ. Modeling of the Structure and Forecasting Properties of Dihydroquercetin Derivatives. Drug Dev Ind Pharm 2022; 48:52-57. [PMID: 35748812 DOI: 10.1080/03639045.2022.2094398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIMS To study new chemical compounds with the potential cure proper, and to develop modifications of the preferred structure of dihydroquercetin. BACKGROUND Producing of the new drugs needs the study of the cure properties of the chemical composes first of all, and computer modeling can make this process more informative and easily. OBJECTIVE Computer projection of the chemical compounds potential cure properties. METHODS The reactivity of the studied models was evaluated by comparing the energies of the boundary molecular orbitals (HOMO and LUMO), as well as the difference in their values. The reaction center of the model molecules was determined via the analysis of the charge characteristics on atoms in each of them. RESULTS A theoretical model of new chemical compounds with the potential properties of drugs was substantiated and modifications of the preferred structure of dihydroquercetin have been developed. The concept of new compounds has been expanded and opportunities for the modification of compounds with high pharmacological activity have been discussed. Using the AM1, PM3, RM1 methods spatial characteristics were calculated. The results of quantum-chemical studies of model derivatives of dihydroquercetin via the RM1 method were carried out. CONCLUSIONS Calculation of the enthalpies of formation of model molecules allowed evaluating their thermodynamic stability. An analysis of the electric dipole moments made a possibility determining the preferred (polar) nature of the solvents for the studied model molecular systems.
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Affiliation(s)
- A K Boshkayeva
- Department of Pharmaceutical and Toxicological Chemistry, Pharmacognosy and Botany, Asfendiyarov Kazakh National Medical University, Almaty, Republic of Kazakhstan
| | - R A Omarova
- Department of engineering disciplines, Asfendiyarov Kazakh National Medical University, Almaty, Republic of Kazakhstan
| | - S K Ordabayeva
- Department of Pharmaceutical and Toxicological Chemistry, South Kazakhstan Medical Academy JSC, Shymkent, Republic of Kazakhstan
| | - A D Serikbayeva
- Department of Pharmaceutical and Toxicological Chemistry, South Kazakhstan Medical Academy JSC, Shymkent, Republic of Kazakhstan
| | - G G Umurzakhova
- Department of Organization and Management of Pharmaceutical Affairs, South Kazakhstan Medical Academy JSC, Shymkent, Republic of Kazakhstan
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Yuan L, Sun Y, Zhou N, Wu W, Zheng W, Wang Y. Dihydroquercetin Attenuates Silica-Induced Pulmonary Fibrosis by Inhibiting Ferroptosis Signaling Pathway. Front Pharmacol 2022; 13:845600. [PMID: 35645837 PMCID: PMC9133504 DOI: 10.3389/fphar.2022.845600] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 04/27/2022] [Indexed: 01/25/2023] Open
Abstract
Silicosis is a fatal occupational lung disease which currently has no effective treatment. Dihydroquercetin (DHQ) is a flavonoid compound known for its anti-inflammatory, anti-oxidant and anti-cancer bioactivity. However, whether DHQ protects against silica-induced lung fibrosis remains unknown. Therefore, we aimed to investigate the effect of DHQ on silica-induced lung fibrosis and the underlying molecular mechanism in vivo and in vitro. Our results demonstrated that DHQ treatment markedly attenuated SiO2-induced inflammation and fibrosis degree of lung tissues in the C57BL/6 mice. Additionally, experiments in vitro also confirmed that conditioned medium from DHQ-treated human bronchial epithelial (HBE) cells significantly decreased expression of fibrosis markers of human fetal lung fibroblast cells (MRC-5), such as α-SMA, collagen1 and fibronectin. Interestingly, HBE cells treated by DHQ showed few morphological features of ferroptosis compared with SiO2-treated cells. Furthermore, DHQ treatment remarkably inhibited ferroptosis in activated HBE cells by decreasing the accumulation of iron and lipid peroxidation products, and increasing levels of glutathione (GSH) and glutathione peroxidase 4 (GPX4), whereas stimulation of ferroptosis by specific inducer erastin deeply impaired anti-fibrosis effect of DHQ in vitro. More importantly, our results showed that DHQ also evidently suppressed ferritinophagy by down-regulation of microtubule-associated protein 1A/1B-light chain 3 (LC3), and up-regulation of ferritin heavy chain 1 (FTH1), nuclear receptor co-activator 4 (NCOA4) in activated HBE cells. Nevertheless, activation of ferritinophagy by specific inducer rapamycin (Rapa) evidently blocked DHQ-inhibited HBE cells ferritinophagy and anti-fibrosis effect of DHQ. Overall, our research revealed that inhibition of ferritinophagy-mediated HBE cells ferroptosis was responsible for DHQ to ameliorate SiO2-induced lung fibrosis, which provided a preliminary theoretical basis for the clinical application of DHQ in the treatment of silicosis.
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Affiliation(s)
- Leyong Yuan
- Department of Clinical Laboratory, Southern University of Science and Technology Hospital, Shenzhen, China
- Hubei Key Laboratory of Wudang Local Chinese Medicine Research, Hubei University of Medicine, Shiyan, China
| | - Yan Sun
- Department of Clinical Laboratory, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Ning Zhou
- Department of Clinical Laboratory, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Weipeng Wu
- Department of Clinical Laboratory, Southern University of Science and Technology Hospital, Shenzhen, China
| | - Weidong Zheng
- Department of Laboratory Medicine, Shenzhen University General Hospital, Shenzhen, China
- *Correspondence: Weidong Zheng, ; Yukun Wang,
| | - Yukun Wang
- Department of Clinical Laboratory, Southern University of Science and Technology Hospital, Shenzhen, China
- Department of Pharmacology, School of Medicine, Southern University of Science and Technology, Shenzhen, China
- *Correspondence: Weidong Zheng, ; Yukun Wang,
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Li W, Zhang L, Xu Q, Yang W, Zhao J, Ren Y, Yu Z, Ma L. Taxifolin Alleviates DSS-Induced Ulcerative Colitis by Acting on Gut Microbiome to Produce Butyric Acid. Nutrients 2022; 14:nu14051069. [PMID: 35268045 PMCID: PMC8912346 DOI: 10.3390/nu14051069] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/25/2022] [Accepted: 02/28/2022] [Indexed: 01/27/2023] Open
Abstract
Taxifolin is a bioflavonoid which has been used to treat Inflammatory Bowel Disease. However, taxifolin on DSS-induced colitis and gut health is still unclear. Here, we studied the effect of taxifolin on DSS-induced intestinal mucositis in mice. We measured the degree of intestinal mucosal injury and inflammatory response in DSS treated mice with or without taxifolin administration and studied the changes of fecal metabolites and intestinal microflora using 16S rRNA. The mechanism was further explored by fecal microbiota transplantation. The results showed that the weight loss and diarrhea score of the mice treated with taxifolin decreased in DSS-induced mice and longer colon length was displayed after taxifolin supplementation. Meanwhile, the expression of GPR41 and GPR43 in the colon was significantly increased by taxifolin treatment. Moreover, the expression of TNF-α, IL-1β, and IL-6 in colon tissue was inhibited by taxifolin treatment. The fecal metabolism pattern changed significantly after DSS treatment, which was reversed by taxifolin treatment. Importantly, taxifolin significantly increased the levels of butyric acid and isobutyric acid in the feces of DSS-treated mice. In terms of gut flora, taxifolin reversed the changes of Akkermansia, and further decreased uncultured_bacterium_f_Muribaculaceae. Fecal transplantation from taxifolin-treated mice showed a lower diarrhea score, reduced inflammatory response in the colon, and reduced intestinal mucosal damage, which may be related to the increased level of butyric acid in fecal metabolites. In conclusion, this study provides evidence that taxifolin can ameliorate DSS-induced colitis by altering gut microbiota to increase the production of SCFAs.
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Affiliation(s)
| | | | | | | | | | | | | | - Libao Ma
- Correspondence: ; Tel.: +86-13317192322
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Efficiency of “Neo inulin” in the complex treatment of patients with type 2 diabetes. ACTA BIOMEDICA SCIENTIFICA 2021. [DOI: 10.29413/abs.2021-6.6-2.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Diabetes mellitus is one of the most serious medical, social, and economic health problems in all countries of the world. The incidence of diabetes mellitus in the world doubles every 10–15 years, acquiring the character of a non-infectious epidemic. Therefore, it is extremely important to search for new drugs that help normalize glycemia, prevent complications of diabetes mellitus, and improve the quality of life of patients. These drugs include “Neo inulin”, which has a hypoglycemic, antioxidant, hepatoprotective and angioprotective effect.The aim: to evaluate the effectiveness of “Neo inulin” in the complex treatment of patients with type 2 diabetes mellitus.Materials and methods. The study involved 18 women (average age – 64.5 ± 8.7 years, average weight – 77.8 ± 11.4 kg) and 3 men (average age – 54.6 ± 12.4 years, average weight – 114 ± 40.2 kg). The average duration of type 2 diabetes was 11.0 (7.0–12.0) years. “Neo inulin” was prescribed as 2 capsules per day for 12 weeks in the complex of basic diabetes therapy To assess the effectiveness of therapy, a study of the quality of life related to health, a biochemical blood test (glycated hemoglobin), a clinical minimum (CBC, OAM, ECG, blood glucose) was carried out, the functional characteristics of tissue blood flow were investigated, and the ankle-brachial index (ABI) was determined. Statistical processing of the results was carried out using the Statistica 6.0 software package (StatSoft Inc., USA). Differences were considered statistically significant at p < 0.05.Results. Statistically significant differences were revealed in the values of all scales of health-related quality of life in patients in the groups before and after treatment with “Neo Inulin”, including the total physical and mental components. An improvement in the functioning of microcirculatory regulation mechanisms was noted, which is confirmed by a statistically significant increase in ABI (1.0 and 0.8 on the right; 0.9 and 0.8 on the left, respectively; p < 0.05) and the coefficient of microcirculation variation (9.2 and 8.3, respectively; p < 0.05). In 57,1 % of cases (12 people), the level of glycated hemoglobin was normalized.Conclusion. The use of a treatment regimen that includes “Neo Inulin” improves the effectiveness of treatment and improves the quality of life of patients with type 2 diabetes mellitus.
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Exploring Taxifolin Polymorphs: Insights on Hydrate and Anhydrous Forms. Pharmaceutics 2021; 13:pharmaceutics13091328. [PMID: 34575404 PMCID: PMC8469002 DOI: 10.3390/pharmaceutics13091328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 11/16/2022] Open
Abstract
Taxifolin, also known as dihydroquercetin, possesses several interesting biological properties. The purpose of the study was to identify polymorphs of taxifolin prepared using crystallization in different solvents. Data from X-ray powder diffraction, differential scanning calorimetry, and thermogravimetry enabled us to detect six different crystalline phases for taxifolin. Besides the already known fully hydrated phase, one partially hydrated phase, one monohydrated phase, two anhydrous polymorphs, and one probably solvated phase were obtained. The unit cell parameters were defined for three of them, while one anhydrous polymorph was fully structurally characterized by X-ray powder diffraction data. Scanning electron microscopy and hot stage microscopy were also employed to characterize the crystallized taxifolin powders. The hydrate and anhydrous forms showed remarkable stability in drastic storage conditions, and their solubility was deeply evaluated. The anhydrous form converted into the hydrate form during the equilibrium solubility study and taxifolin equilibrium solubility was about 1.2 mg/mL. The hydrate taxifolin intrinsic dissolution rate was 56.4 μg cm-2 min-1. Using Wood's apparatus, it was not possible to determine the intrinsic dissolution rate of anhydrous taxifolin that is expected to solubilize more rapidly than the hydrate form. In view of its high stability, its use can be hypothesized.
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Taxifolin and Sorghum Ethanol Extract Protect against Hepatic Insulin Resistance via the miR-195/IRS1/PI3K/AKT and AMPK Signalling Pathways. Antioxidants (Basel) 2021; 10:antiox10091331. [PMID: 34572963 PMCID: PMC8465682 DOI: 10.3390/antiox10091331] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/18/2021] [Accepted: 08/21/2021] [Indexed: 12/17/2022] Open
Abstract
This study aimed to evaluate the effects of taxifolin and sorghum ethanol extract on free fatty acid (FFA)-induced hepatic insulin resistance. FFA treatment decreased glucose uptake by 16.2% compared with that in the control, whereas taxifolin and sorghum ethanol extract increased the glucose uptake. Additionally, taxifolin and sorghum ethanol extract increased the expression of p-PI3K, p-IRS1, p-AKT, p-AMPK, and p-ACC in FFA-induced hepatocytes. Furthermore, FFA treatment increased the expression of miR-195. However, compared with the FFA treatment, treatment with taxifolin and sorghum ethanol extract decreased miR-195 expression in a dose-dependent manner. Taxifolin and sorghum ethanol extract enhanced p-IRS1, p-PI3K, p-AMPK, p-AKT, and p-ACC expression by suppressing miR-195 levels in miR-195 mimic- or inhibitor-transfected cells. These results indicate that taxifolin and sorghum ethanol extract attenuate insulin resistance by regulating miR-195 expression, which suggests that taxifolin and sorghum ethanol extract may be useful antidiabetic agents.
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Modelling studies reveal the importance of the C-terminal inter motif loop of NSP1 as a promising target site for drug discovery and screening of potential phytochemicals to combat SARS-CoV-2. J Mol Graph Model 2021; 106:107920. [PMID: 33933885 PMCID: PMC8053965 DOI: 10.1016/j.jmgm.2021.107920] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/25/2021] [Accepted: 04/06/2021] [Indexed: 02/06/2023]
Abstract
COVID-19 pandemic causative SARS-CoV-2 coronavirus is still rapid in progression and transmission even after a year. Understanding the viral transmission and impeding the replication process within human cells are considered as the vital point to control and overcome COVID-19 infection. Non-structural Protein 1, one among the proteins initially produced upon viral entry into human cells, instantly binds with the human ribosome and inhibit the host translation process by preventing the mRNA attachment. However, the formation of NSP1 bound Ribosome complex does not affect the viral replication process. NSP1 plays an indispensable role in modulating the host gene expression and completely steals the host cellular machinery. The full-length structure of NSP1 is essential for the activity in the host cell and importantly the loop connecting N and C-terminal domains are reported to play a role in ribosome binding. Due to the unavailability of the experimentally determined full-length structure of NSP1, we have modelled the complete structure using comparative modelling and the stability and conformational behaviour of the modelled structure was evaluated through molecular dynamics simulation. Interestingly, the present study reveals the significance of the inter motif loop to serves as a potential binding site for drug discovery experiments. Further, we have screened the phytochemicals from medicinal plant sources since they were used for several hundred years that minimizes the traditional drug development time. Among the 5638 phytochemicals screened against the functionally associated binding site of NSP1, the best five phytochemicals shown high docking score of −9.63 to −8.75 kcal/mol were further evaluated through molecular dynamics simulations to understand the binding affinity and stability of the complex. Prime MM-GBSA analysis gave the relative binding free energies for the top five compounds (dihydromyricetin, 10-demethylcephaeline, dihydroquercetin, pseudolycorine and tricetin) in the range of −45.17 kcal/mol to −37.23 kcal/mol, indicating its binding efficacy in the predicted binding site of NSP1. The density functional theory calculations were performed for the selected five phytochemicals to determine the complex stability and chemical reactivity. Thus, the identified phytochemicals could further be used as effective anti-viral agents to overcome COVID-19 and as well as several other viral infections.
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Ilyich TV, Lapshina EA, Maskevich AA, Veiko AG, Lavysh AV, Palecz B, Stępniak A, Buko VU, Zavodnik IB. Inclusion Complexes of Quercetin with β-Cyclodextrins: Ultraviolet and Infrared Spectroscopy and Quantum Chemical Modeling. Biophysics (Nagoya-shi) 2020. [DOI: 10.1134/s0006350920030070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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12
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Wang P, Cao X, Chu Y, Wang P. Ginkgolides-loaded soybean phospholipid-stabilized nanosuspension with improved storage stability and in vivo bioavailability. Colloids Surf B Biointerfaces 2019; 181:910-917. [PMID: 31382340 DOI: 10.1016/j.colsurfb.2019.06.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/31/2019] [Accepted: 06/22/2019] [Indexed: 10/26/2022]
Abstract
The purpose of this study was to investigate the effects of soybean phospholipid, as a steric stabilizer, on improving dissolution rate, storage stability and bioavailability of ginkgolides. The ginkgolides coarse powder, hydroxypropyl methylcellulose (HPMC), soybean phospholipid and sodium dodecyl sulfate (SDS) were mixed and wet-milled to prepare nanosuspension S1. Nanosuspension S2 was obtained by the same technique except adding the soybean phospholipid. Results of particle size showed that particle size (D50) of S1 significantly decreased from 44.25 μm to 0.373 μm. Results of differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD) and transmission electron microscope (TEM) showed that ginkgolides in nanosuspension still maintained its crystallinity, and the nanoparticles were all nearly circular and uniformly dispersed. Then, pellets F1 and F2 were prepared by layering S1 and S2 onto the microcrystalline cellulose (MCC) spheres, respectively. The dissolution rate of ginkgolide A (GA) and ginkgolide B (GB) in F1 was 98.3% and 97.7% in 30 min, respectively. It was much higher than F2 (89.0% and 86.5%) and coarse powder of ginkgolides (22.3% and 24.6%). According to the results of stability test, the storage stability of F1 was improved compared with F2. In addition, compared with coarse powder of ginkgolides, the relative bioavailability of GA and GB in F1 were up to (221.84 ± 106.67) % and (437.45 ± 336.43) %, respectively. The above results demonstrated that soybean phospholipid added to the nanosuspension played an important role in improving drug dissolution rate, storage stability and in vivo bioavailability: (1) The amphiphilic soybean phospholipid interacted with the drug, with the hydrophobic part adsorbed on the surface of the poorly soluble drug and the hydrophilic part exposed to the aqueous medium. This increases the wettability of the nanoparticles, which ensure a good redispersibility of the drug particles. (2) It could self-assemble to form an interfacial phospholipid film by surrounding the individual nanoparticles, which can produce enough steric hindrance to prevent nanoparticles from aggregation and ensure a rapid dissolution rate. (3) Soybean phospholipid and its hydrolysate formed strong micellar solubilizing vehicles with bile salts in vivo, stimulated the absorption process of ginkgolides. Thus, soybean phospholipid was a promising steric stabilizer in nanosuspension drug delivery system.
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Affiliation(s)
- Puxiu Wang
- Department of Pharmacy, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Xiuxiu Cao
- School of Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, Liaoning, PR China.
| | - Yang Chu
- Department of Pharmacy, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Puxiu Wang
- Department of Pharmacy, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China.
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13
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Ji HY, Yu J, Dong XD, Liu AJ. Preparation of soluble dietary fibers from Gracilaria lemaneiformis and its antitumor activity in vivo. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-019-00073-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Ji HY, Yu J, Chen XY, Liu AJ. Extraction, optimization and bioactivities of alcohol-soluble polysaccharide from Grifola frondosa. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-019-00081-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Yang X, Wang X, Chen XY, Ji HY, Zhang Y, Liu AJ. Pinocembrin⁻Lecithin Complex: Characterization, Solubilization, and Antioxidant Activities. Biomolecules 2018; 8:biom8020041. [PMID: 29921807 PMCID: PMC6023000 DOI: 10.3390/biom8020041] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/14/2018] [Accepted: 06/18/2018] [Indexed: 12/20/2022] Open
Abstract
Pinocembrin is a natural flavonoid compound which is capable of antioxidant, antibacterial, anti-inflammatory, and antineoplastic activities. The present study aimed to enhance the solubility and antioxidant activities of pinocembrin by complex formation with lecithin. The physicochemical characteristics of pinocembrin–lecithin complex were analyzed by ultraviolet (UV), fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and solubility assay, and the antioxidant activities of pinocembrin–lecithin complex were evaluated via radical scavenging capacities for 2,2′-diphenyl-1-picrylhydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulphonic acid) (ABTS), hydroxyl, and superoxide-anion. The results indicated that pinocembrin complex with lecithin could significantly improve the solubility of pinocembrin in water and n-octane, the pinocembrin–lecithin complex displayed no characteristic endothermic peak and the appearance of amorphous state, compared to the pinocembrin, and no new covalent bond was produced in the pinocembrin and lecithin compound. It was demonstrated that the antioxidant activities of pinocembrin were obviously enhanced by the complex with lecithin, and the scavenging capacities for hydroxyl radical, DPPH, superoxide-anion radical, and ABTS radical of pinocembrin–lecithin complex were 82.44 ± 2.21%, 40.07 ± 1.32%, 59.15 ± 0.86%, and 24.73 ± 1.04% at 1.0 mg/mL, respectively. It suggested that the pinocembrin–lecithin complex had a great potential application prospect in the healthcare industry and in clinical practice.
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Affiliation(s)
- Xu Yang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Xin Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Xiao-Yu Chen
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Hai-Yu Ji
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Yan Zhang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - An-Jun Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, School of Food Engineering and Biotechnology, Tianjin University of Science and Technology, Tianjin 300457, China.
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