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Song X, Liu Y, Chen S, Zhang L, Zhang H, Shen X, Du H, Sun R. Knee osteoarthritis: A review of animal models and intervention of traditional Chinese medicine. Animal Model Exp Med 2024; 7:114-126. [PMID: 38409942 PMCID: PMC11079151 DOI: 10.1002/ame2.12389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 01/10/2024] [Indexed: 02/28/2024] Open
Abstract
BACKGROUND Knee osteoarthritis (KOA) characterized by degeneration of knee cartilage and subsequent bone hyperplasia is a prevalent joint condition primarily affecting aging adults. The pathophysiology of KOA remains poorly understood, as it involves complex mechanisms that result in the same outcome. Consequently, researchers are interested in studying KOA and require appropriate animal models for basic research. Chinese herbal compounds, which consist of multiple herbs with diverse pharmacological properties, possess characteristics such as multicomponent, multipathway, and multitarget effects. The potential benefits in the treatment of KOA continue to attract attention. PURPOSE This study aims to provide a comprehensive overview of the advantages, limitations, and specific considerations in selecting different species and methods for KOA animal models. This will help researchers make informed decisions when choosing an animal model. METHODS Online academic databases (e.g., PubMed, Google Scholar, Web of Science, and CNKI) were searched using the search terms "knee osteoarthritis," "animal models," "traditional Chinese medicine," and their combinations, primarily including KOA studies published from 2010 to 2023. RESULTS Based on literature retrieval, this review provides a comprehensive overview of the methods of establishing KOA animal models; introduces the current status of advantages and disadvantages of various animal models, including mice, rats, rabbits, dogs, and sheep/goats; and presents the current status of methods used to establish KOA animal models. CONCLUSION This study provides a review of the animal models used in recent KOA research, discusses the common modeling methods, and emphasizes the role of traditional Chinese medicine compounds in the treatment of KOA.
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Affiliation(s)
- Xuyu Song
- Orthopaedic trauma surgeryThe Second Hospital of Shandong UniversityJinanShandongChina
| | - Ying Liu
- Academy of Traditional Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Siyi Chen
- Academy of Traditional Chinese MedicineTianjin University of Traditional Chinese MedicineTianjinChina
| | - Lei Zhang
- Department of Traditional Chinese MedicineThe Second Hospital of Shandong UniversityJinanShandongChina
| | - Huijie Zhang
- College of pharmacyShandong University of Traditional Chinese MedicineJinanShandongChina
| | - Xianhui Shen
- The Second Clinical College of Shandong UniversityShandong UniversityJinanShandongChina
| | - Hang Du
- The Second Clinical College of Shandong UniversityShandong UniversityJinanShandongChina
| | - Rong Sun
- Advanced Medical Research InstituteShandong UniversityJinanShandongChina
- The Second Hospital of Shandong UniversityJinanShandongChina
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Lu J, Bian J, Wang Y, Zhao Y, Zhao X, Wang G, Yang J. Oxymatrine protects articular chondrocytes from IL-1β-induced damage through autophagy activation via AKT/mTOR signaling pathway inhibition. J Orthop Surg Res 2024; 19:178. [PMID: 38468339 PMCID: PMC10926585 DOI: 10.1186/s13018-024-04667-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 03/06/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a common degenerative joint disease characterized by persistent articular cartilage degeneration and synovitis. Oxymatrine (OMT) is a quinzolazine alkaloid extracted from the traditional Chinese medicine, matrine, and possesses anti-inflammatory properties that may help regulate the pathogenesis of OA; however, its mechanism has not been elucidated. This study aimed to investigate the effects of OMT on interleukin-1β (IL-1β)-induced damage and the potential mechanisms of action. METHODS Chondrocytes were isolated from Sprague-Dawley rats. Toluidine blue and Collagen II immunofluorescence staining were used to determine the purity of the chondrocytes. Thereafter, the chondrocytes were subjected to IL-1β stimulation, both in the presence and absence of OMT, or the autophagy inhibitor 3-methyladenine (3-MA). Cell viability was assessed using the MTT assay and SYTOX Green staining. Additionally, flow cytometry was used to determine cell apoptosis rate and reactive oxygen species (ROS) levels. The protein levels of AKT, mTOR, LC3, P62, matrix metalloproteinase-13, and collagen II were quantitatively analyzed using western blotting. Immunofluorescence was used to assess LC3 expression. RESULTS OMT alleviated IL-1β-induced damage in chondrocytes, by increasing the survival rate, reducing the apoptosis rates of chondrocytes, and preventing the degradation of the cartilage matrix. In addition, OMT decreased the ROS levels and inhibited the AKT/mTOR signaling pathway while promoting autophagy in IL-1β treated chondrocytes. However, the effectiveness of OMT in improving chondrocyte viability under IL-1β treatment was limited when autophagy was inhibited by 3-MA. CONCLUSIONS OMT decreases oxidative stress and inhibits the AKT/mTOR signaling pathway to enhance autophagy, thus inhibiting IL-1β-induced damage. Therefore, OMT may be a novel and effective therapeutic agent for the clinical treatment of OA.
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Affiliation(s)
- Jinying Lu
- Department of Biochemistry and Molecular Biology, Basic Medical College, Jinzhou Medical University, No.40, Section 3 Songpo Road, Linghe District, Jinzhou, Liaoning, 121001, China
| | - Jiang Bian
- Department of Biochemistry and Molecular Biology, Basic Medical College, Jinzhou Medical University, No.40, Section 3 Songpo Road, Linghe District, Jinzhou, Liaoning, 121001, China
| | - Yutong Wang
- Department of Biochemistry and Molecular Biology, Basic Medical College, Jinzhou Medical University, No.40, Section 3 Songpo Road, Linghe District, Jinzhou, Liaoning, 121001, China
| | - Yan Zhao
- Provincial Key Laboratory of Cardiovascular and Cerebrovascular Drug Basic Research, Jinzhou Medical University, No.40, Section 3 Songpo Road, Linghe District, Jinzhou, Liaoning, 121001, China
| | - Xinmin Zhao
- Department of Biochemistry and Molecular Biology, Basic Medical College, Jinzhou Medical University, No.40, Section 3 Songpo Road, Linghe District, Jinzhou, Liaoning, 121001, China
| | - Gao Wang
- Department of Biochemistry and Molecular Biology, Basic Medical College, Jinzhou Medical University, No.40, Section 3 Songpo Road, Linghe District, Jinzhou, Liaoning, 121001, China
| | - Jing Yang
- Provincial Key Laboratory of Cardiovascular and Cerebrovascular Drug Basic Research, Jinzhou Medical University, No.40, Section 3 Songpo Road, Linghe District, Jinzhou, Liaoning, 121001, China.
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Watanuki Y, Yajima S, Sashide Y, Takeda M. Effect of theanine on the hyperexcitability of trigeminal secondary nociceptive neurons following orofacial inflammation in rats. Eur J Oral Sci 2024; 132:e12961. [PMID: 37984410 DOI: 10.1111/eos.12961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/06/2023] [Indexed: 11/22/2023]
Abstract
The present in vivo study investigated whether systemic administration of theanine attenuates the inflammation-induced hyperexcitability of trigeminal spinal nucleus caudalis (SpVc) neurons associated with hyperalgesia. Complete Freund's adjuvant (CFA) was injected into the whisker pads of 24 rats to induce inflammation, and then mechanical stimulation was applied to the orofacial area to assess the threshold of escape. The mechanical threshold was statistically significantly lower in CFA-inflamed rats compared to uninjected naïve rats, and this lowered threshold returned to control levels after 2 days of theanine administration. The mean discharge frequency of SpVc wide-dynamic range (WDR) neurons to mechanical stimuli in anesthetized CFA-inflamed rats was statistically significantly lower after two days of theanine administration. In addition, the increased mean spontaneous discharge of SpVc WDR neurons in CFA-inflamed rats statistically significantly decreased after theanine administration. Similarly, theanine restored the expanded mean receptive field size in CFA-inflamed rats to control levels. Taken together, these results suggest that administration of theanine attenuates inflammatory hyperalgesia associated with hyperexcitability of nociceptive SpVc WDR neurons. These findings support the potential of theanine as a therapeutic agent in complementary alternative medicine strategies to prevent inflammatory hyperalgesia.
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Affiliation(s)
- Yui Watanuki
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, Sagamihara, Kanagawa, Japan
| | - Sora Yajima
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, Sagamihara, Kanagawa, Japan
| | - Yukito Sashide
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, Sagamihara, Kanagawa, Japan
| | - Mamoru Takeda
- Laboratory of Food and Physiological Sciences, Department of Life and Food Sciences, School of Life and Environmental Sciences, Azabu University, Sagamihara, Kanagawa, Japan
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Wang Y, Li Z, Wang B, Li K, Zheng J. Naringenin attenuates inflammation and apoptosis of osteoarthritic chondrocytes via the TLR4/TRAF6/NF-κB pathway. PeerJ 2023; 11:e16307. [PMID: 37953787 PMCID: PMC10638912 DOI: 10.7717/peerj.16307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 09/26/2023] [Indexed: 11/14/2023] Open
Abstract
Naringenin is a flavonoid extracted from the seed coat of Anacardiaceae plants. Increasing evidence indicates that it has several properties of biological significance, such as anti-infection, sterilization, anti-allergy, antioxidant free radical, and anti-tumor. However, its effect on osteoarthritis has not been elucidated properly. In this study, the treatment of primary chondrocytes with interleukin (IL)-1β was found to increase the secretions of IL-6, tumor necrosis factor (TNF)-α, and cyclooxygenase-2 (COX-2). Further, the mRNA expression of matrix metalloproteinase ((MMP)3, MMP9, and MMP13), the protein expression of Recombinant A Disintegrin And Metalloproteinase With Thrombospondin 5 (ADAMTS5), and cell apoptosis increased; the protein expression of Collagen II decreased. The injury of primary chondrocytes induced by IL-1β was reversed under the intervention of naringenin; this reversal was dose-dependent. The mechanistic study showed that naringenin inhibited the toll-like receptor 4 (TLR4)/TNF receptor-associated factor 6 (TRAF6)/NF-κB pathway in IL-1β-stimulated primary cells, and LPS, a TLR4 activator, reversed this inhibitory effect. In addition, a mouse model of osteoarthritis was established and treated with naringenin. The results revealed that naringenin alleviated the pathological symptoms of osteoarthritis in mice, reduced the expression of TLR4 and TRAF6, and the phosphorylation of NF-κB in knee cartilage tissue. It also inhibited the secretion of inflammatory factors, reduced extracellular matrix degradation, and decreased the protein expression of cleaved caspase3. In conclusion, the findings of this study suggest that naringenin may be a potential option for the treatment of osteoarthritis.
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Affiliation(s)
- Yan Wang
- Department of Hand Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Zhengzhao Li
- Department of Emergency Surgery, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Bo Wang
- Department of Sports Medicine, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Ke Li
- Department of Sports Medicine, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
| | - Jiaxuan Zheng
- Department of Pathology, Hainan General Hospital (Hainan Affiliated Hospital of Hainan Medical University), Haikou, China
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Chen S, Kang J, Zhu H, Wang K, Han Z, Wang L, Liu J, Wu Y, He P, Tu Y, Li B. L-Theanine and Immunity: A Review. Molecules 2023; 28:molecules28093846. [PMID: 37175254 PMCID: PMC10179891 DOI: 10.3390/molecules28093846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/26/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
L-theanine (N-ethyl-γ-glutamine) is the main amino acid in tea leaves. It not only contributes to tea flavor but also possesses several health benefits. Compared with its sedative and calming activities, the immunomodulatory effects of L-theanine have received less attention. Clinical and epidemiological studies have shown that L-theanine reduces immunosuppression caused by strenuous exercise and prevents colds and influenza by improving immunity. Numerous cell and animal studies have proven that theanine plays an immunoregulatory role in inflammation, nerve damage, the intestinal tract, and tumors by regulating γδT lymphocyte function, glutathione (GSH) synthesis, and the secretion of cytokines and neurotransmitters. In addition, theanine can be used as an immunomodulator in animal production. This article reviews the research progress of L-theanine on immunoregulation and related mechanisms, as well as its application in poultry and animal husbandry. It is hoped that this work will be beneficial to future related research.
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Affiliation(s)
- Shuna Chen
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Jiaxin Kang
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Huanqing Zhu
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Kaixi Wang
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Ziyi Han
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Leyu Wang
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Junsheng Liu
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Yuanyuan Wu
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Puming He
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Youying Tu
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
| | - Bo Li
- Department of Tea Science, Zhejiang University, Hangzhou 310058, China
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Robescu MS, Alcántara AR, Calvio C, Morelli CF, Speranza G, Ubiali D, Bavaro T. l-Theanine Goes Greener: A Highly Efficient Bioprocess Catalyzed by the Immobilized γ-Glutamyl Transferase from Bacillus subtilis. CHEMSUSCHEM 2023; 16:e202202108. [PMID: 36655933 DOI: 10.1002/cssc.202202108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/18/2023] [Indexed: 06/17/2023]
Abstract
l-Theanine (l-Th) was synthesized by simply mixing the reactants (l-glutamine and ethylamine in water) at 25 °C and Bacillus subtilis γ-glutamyl transferase (BsGGT) covalently immobilized on glyoxyl-agarose according to a methodology previously reported by our research group; neither buffers, nor other additives were needed. Ratio of l-glutamine (donor) to ethylamine (acceptor), pH, enzymatic units (IU), and reaction time were optimized (molar ratio of donor/acceptor=1 : 8, pH 11.6, 1 IU mL-1 , 6 h), furnishing l-Th in 93 % isolated yield (485 mg, 32.3 g L-1 ) and high purity (99 %), after a simple filtration of the immobilized biocatalyst, distillation of the volatiles (unreacted ethylamine) and direct lyophilization. Immobilized BsGGT was re-used (four reaction cycles) with 100 % activity retention. This enzymatic synthesis represents a straightforward, fast, high-yielding, and easily scalable approach to l-Th preparation, besides having a favorable green chemistry metrics.
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Affiliation(s)
- Marina S Robescu
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, Pavia, Italy
| | - Andrés R Alcántara
- Department of Chemistry in Pharmaceutical Sciences, Complutense University of Madrid, Plaza de Ramon y Cajal s/n, Madrid, Spain
| | - Cinzia Calvio
- Department of Biology and Biotechnology, University of Pavia, via Ferrata 1, Pavia, Italy
| | - Carlo F Morelli
- Department of Chemistry, University of Milan, via Golgi 19, Milano, Italy
| | - Giovanna Speranza
- Department of Chemistry, University of Milan, via Golgi 19, Milano, Italy
| | - Daniela Ubiali
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, Pavia, Italy
| | - Teodora Bavaro
- Department of Drug Sciences, University of Pavia, viale Taramelli 12, Pavia, Italy
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Dai H, Chen X, Chen D, Yu B, He J, Chen H, Yan H, Zheng P, Luo Y, Huang Z. Effects of dietary l-theanine supplementation on pork quality and muscle fiber type transformation in finishing pigs. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:2106-2115. [PMID: 36460906 DOI: 10.1002/jsfa.12368] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/11/2022] [Accepted: 12/03/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND This experiment aimed to investigate effects of dietary l-theanine supplementation on pork quality and muscle fiber type transformation in finishing pigs. In a 30-day experiment, 18 healthy Duroc × Landrace × Yorkshire (DLY) pigs with an average body weight of 86.03 ± 0.83 kg were randomly divided into three groups (a basal diet or a basal diet supplemented with 500 and 1000 ppm l-theanine, respectively), with six duplicates and one pig per replicate. RESULTS The results showed that dietary 1000 ppm l-theanine supplementation significantly reduced (P < 0.05) b*24 h and drip loss. Dietary 1000 ppm l-theanine supplementation significantly increased (P < 0.05) slow myosin heavy chain (MyHC) protein expression and the percentage of slow-twitch fibers, as well as significantly decreased (P < 0.05) fast MyHC protein expression and the percentage of fast-twitch fibers, accompanied by an increase in succinate dehydrogenase (SDH) and malate dehydrogenase (MDH) activities and a decrease in lactate dehydrogenase (LDH) activity. In addition, the adenosine monophosphate (AMP)-activated protein kinase (AMPK) signaling pathway was activated by l-theanine. CONCLUSION Together, this study demonstrated for the first time that dietary supplementation of 1000 ppm l-theanine can improve pork color and drip loss and promote muscle fiber type transformation from fast-twitch to slow-twitch in finishing pigs. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Hanna Dai
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Xiaoling Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Daiwen Chen
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Bing Yu
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Jun He
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Hong Chen
- College of Food Science, Sichuan Agricultural University, Yaan, Sichuan, P. R. China
| | - Hui Yan
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Ping Zheng
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Yuheng Luo
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
| | - Zhiqing Huang
- Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, P. R. China
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Xu W, Kong Y, Zhang T, Gong Z, Xiao W. L-Theanine regulates lipid metabolism by modulating gut microbiota and bile acid metabolism. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1283-1293. [PMID: 36087337 DOI: 10.1002/jsfa.12222] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 08/25/2022] [Accepted: 09/10/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND l-Theanine (LTA) is a biologically active ingredient in tea that shows great potential for regulating lipid metabolism. Bile acids (BA), an important end-product of cholesterol catabolism, participate in the regulation of lipid metabolism and gut microbiota. Here, we investigated the effect of LTA on lipid metabolism and the mechanism by which it regulates BA metabolism and gut microbiota. Male BALB/c mice were treated with LTA for 28 days. RESULTS Daily LTA doses of 100 and 300 mg kg-1 d-1 altered the gut microbiota in mice, predominantly by decreasing Lactobacillus, Streptococcus, Bacteroides, Clostridium and Enterorhabdus microbes associated with bile-salt hydrolase (BSH) activity, thereby decreasing the activity of BSH and increasing the levels of ileum conjugated BA (such as glycocholic acid (GCA) and lithocholic acid), thereby inhibiting the intestinal farnesoid X receptor (FXR)-fibroblast growth factor 15 (FGF15) signaling pathway. Inhibition of FXR-FGF15 signaling was accompanied by upregulation of cholesterol 7α-hydroxylase (CYP7A1) mRNA and protein expression and increased hepatic production of cholic acid, deoxycholic acid, GCA, glycine cholic acid and glycine ursodeoxycholic acid. Meanwhile, increasing hepatic unconjugated BA upregulated the mRNA and protein expression of liver 3-hydroxy-3-methylglutaryl-CoA reductase and downregulated the mRNA and protein expression of stearoyl-CoA desaturase-1, liver low-density lipoprotein receptor and type B scavenger receptor. Therefore, the serum levels of cholesterol and triglycerides decreased. CONCLUSION Our findings indicate that LTA regulates lipid metabolism by modulating the gut microbiota and BA metabolism via the FXR-FGF15-CYP7A1 pathway. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Wei Xu
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, China
| | - Yingying Kong
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, China
| | - Tuo Zhang
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, China
| | - Zhihua Gong
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, China
| | - Wenjun Xiao
- Key Lab of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
- National Research Center of Engineering Technology for Utilization of Botanical Functional Ingredients, Hunan Agricultural University, Changsha, China
- Co-Innovation Center of Education Ministry for Utilization of Botanical Functional Ingredients, Changsha, China
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L-Theanine alleviates MPTP-induced Parkinson's disease by targeting Wnt/β-catenin signaling mediated by the MAPK signaling pathway. Int J Biol Macromol 2023; 226:90-101. [PMID: 36502788 DOI: 10.1016/j.ijbiomac.2022.12.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/29/2022] [Accepted: 12/04/2022] [Indexed: 12/13/2022]
Abstract
We evaluated the neuroprotective effect of L-theanine in Parkinson's disease and the underlying mechanism focusing on WNT/β-catenin signaling mediated by the MAPK pathway. We treated MPTP-induced SH-SY5Y cells with various concentrations of L-theanine (50, 100, 200, and 500 μg/mL), and we also treated Parkinson's model mice with L-theanine. L-theanine treatment effectively reduced the immunohistochemical hallmarks of Parkinson's disease, particularly Lewy bodies and α-synuclein, and increased the number of tyrosine hydroxylase-positive cells. L-theanine also improved the motor dysfunction in MPTP-induced Parkinson's disease model mice as measured by the rotarod test. The levels of several pro-inflammatory mediators that are overexpressed in Parkinson's disease, namely TNF-α, IL-6, COX-2, and MAC-1, were reduced following L-theanine treatment, and the levels of the pro-apoptotic proteins Bcl-2, caspase-3, p53, and PARP-1 were significantly reduced. L-theanine regulated the oxidative stress-related factors SOD-1, GST, and NOX-4 by targeting several proteins related to WNT/β-catenin signaling, i.e., β-catenin, WNT-3a, WNT-5a, TCF1/TCF7, and LEF1, via the MAPK pathway (p-JNK, p-ERK, and p-p38). Our results indicate that L-theanine is neuroprotective and has anti-inflammatory effects that could be beneficial for treating Parkinson's disease.
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Effects of dynamic extraction conditions on the chemical composition and sensory quality traits of green tea. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ma T, Jia L, Zhao J, Lv L, Yu Y, Ruan H, Song X, Chen H, Li X, Zhang J, Gao L. Ginkgolide C slows the progression of osteoarthritis by activating Nrf2/HO-1 and blocking the NF-κB pathway. Front Pharmacol 2022; 13:1027553. [PMID: 36386227 PMCID: PMC9651149 DOI: 10.3389/fphar.2022.1027553] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/17/2022] [Indexed: 10/19/2023] Open
Abstract
Osteoarthritis (OA) is driven by chronic low-grade inflammation and subsequent cartilage degradation. OA is the most prevalent degenerative joint disease worldwide, and its treatment remains a challenge. The aim of this study was to explore the potential effects and mechanism underlying the anti-OA properties of ginkgolide C (GC). Protective effects of GC on hydrogen peroxide (H2O2)-treated rat chondrocytes were evaluated using ELISA, qPCR, western blot analysis, flow cytometry, ROS detection and immunofluorescence in vitro. Ameliorating effects of GC on cartilage degeneration in rats were evaluated through behavioral assays, microcomputed tomography, histopathological analysis, western blot analysis and ELISA in vivo. In vitro, GC treatment inhibited the release of pro-apoptotic factors induced by H2O2 and promoted the release of the anti-apoptotic proteins. In addition, GC decreased the expression of matrix metalloproteinase (MMP3 and MMP13), thrombospondin motifs 4 (ADAMTS4), and inflammatory mediators inducible nitric oxide synthase (iNOS), cyclooxygenase (COX-2), and SOX9 thereby inhibiting extracellular matrix (ECM) degradation. Mechanistically, GC exerts its anti-apoptotic and anti-inflammatory effects by upregulating the oxidative stress signaling Nrf2/HO-1 pathway and preventing p65 from binding to DNA. Similarly, In a rat model with post-traumatic OA (PTOA) induced by anterior cruciate ligament transection (ACLT), GC inhibited joint pain, cartilage destruction, and abnormal bone remodeling of subchondral bone. GC inhibited H2O2-induced chondrocyte apoptosis through Nrf2/HO-1 and NF-κB axis, exerted anti-inflammatory effects, and inhibited cartilage degeneration in rat OA. Our findings advanced the concept that GC may contribute to cartilage metabolism through anti-inflammatory and anti-apoptotic effects, and the identified GC is a potential therapeutic agent for the treatment of OA.
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Affiliation(s)
- Tianwen Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Lina Jia
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Jinghua Zhao
- College of Animal Science and Technology, College of Veterinary Medicine, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Liangyu Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yue Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Hongri Ruan
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xiaopeng Song
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Hong Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xin Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Jiantao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Li Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Heilongjiang key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
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12
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Chen TS, Lai YA, Lai YJ, Chien CT. Adipose stem cells preincubated with theanine exert liver regeneration through increase of stem cell paracrine VEGF and suppression of ROS, pyroptosis as well as autophagy markers in liver damage induced by N-nitrosodiethylamine. Life Sci 2022; 308:120969. [PMID: 36116531 DOI: 10.1016/j.lfs.2022.120969] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/04/2022] [Accepted: 09/12/2022] [Indexed: 12/19/2022]
Abstract
AIMS Liver diseases induce a severe decrease in quality of life. Stem cell based therapy shows therapeutic potential in the treatment of liver injury. Theanine is a unique amino acid found in green tea and could confer beneficial effects on cell protection. This study investigates if protective effect on the liver by stem cells preincubated with theanine is better than that from stem cells without preincubated theanine. METHODS We transplanted theanine preincubated adipose-derived stem cells (ADSC) to male Wistar rats with liver dysfunction induced by N-nitrosodiethylamine. The viability, migration and antioxidant capabilities were performed in the ADSC pre-incubated with theanine. Hepatic functional, structural and molecular assays were determined in the animals with or without theanine preincubated ADSC. KEY FINDINGS Cell model revealed that ADSC preincubated with green tea theanine (T-ADSC) increased cell capabilities including viability, migration and paracrine secretion. In vivo results indicated that several pathological conditions were observed in rats with liver injury induced by DEN including structural changes and expression of pyroptosis as well as autophagy markers. The above pathological conditions were improved when the rats received both ADSC and T-ADSC treatment. Furthermore, T-ADSC showed better therapeutic effect on rats with liver injury than ADSC due to significant suppression of pyroptosis markers caspase-1 and IL-1β as well as autophagy marker LC3-II accompanied with intensive paracrine VEGF from T-ADSC. SIGNIFICANCE Increased paracrine VEGF secretion from T-ADSC plays a crucial role in liver regeneration. A future clinical study may be designed for further verification of these experimental in vivo findings.
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Affiliation(s)
- Tung-Sheng Chen
- Graduate Program of Biotechnology and Pharmaceutical Industries, National Taiwan Normal University, Taipei, Taiwan
| | - Yi-An Lai
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Yun-Ju Lai
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan.
| | - Chiang-Ting Chien
- Department of Life Science, National Taiwan Normal University, Taipei, Taiwan.
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13
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Celecoxib nanocrystal-loaded dissolving microneedles with highly efficient for osteoarthritis treatment. Int J Pharm 2022; 625:122108. [PMID: 35970280 DOI: 10.1016/j.ijpharm.2022.122108] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/27/2022] [Accepted: 08/09/2022] [Indexed: 11/20/2022]
Abstract
Osteoarthritis (OA) is a prevalent degenerative disease that has a significant impact on patients' lives. Celecoxib (CXB) is now primarily used to treat OA with oral dosing. CXB's limited water solubility, on the other hand, restricts its therapeutic application. We developed a delivery system of dissolving microneedles (DMNs) loaded with CXB-nanocrystals (CXB-NCs) for the treatment of OA. Oral administration's inefficiency and injectable administration's poor compliance might be solved using DMNs. Furthermore, carrier-free NCs may dramatically increase the dissolution of drugs with poorly water-solubility, as well as the drug load of DMNs. Antisolvent precipitation was used to make CXB-NCs. CXB-NC@DMNs were prepared by mixing CXB-NCs with hyaluronic acid (HA) that had high mechanical qualities and could permeate the skin efficiently in vitro. The therapeutic effect of oral CXB-NCs was substantially better than that of the same dose of oral CXB in an in vivo pharmacodynamic trial, demonstrating that the preparation of CXB into NCs might greatly increase CXB bioavailability. Furthermore, we discovered that DMNs loaded with low-dose CXB-NCs had similar or even better efficacy than the oral CXB-NCs group. The findings suggested that CXB-NC@DMNs may be a very efficient and promising drug delivery strategy in the treatment of OA.
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14
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A comprehensive review on bioavailability, safety and antidepressant potential of natural bioactive components from tea. Food Res Int 2022; 158:111540. [DOI: 10.1016/j.foodres.2022.111540] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/12/2022] [Accepted: 06/18/2022] [Indexed: 11/22/2022]
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15
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Sun P, Xu W, Zhao X, Zhang C, Lin X, Gong M, Fu Z. Ozone induces autophagy by activating PPARγ/mTOR in rat chondrocytes treated with IL-1β. J Orthop Surg Res 2022; 17:351. [PMID: 35842709 PMCID: PMC9287877 DOI: 10.1186/s13018-022-03233-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/07/2022] [Indexed: 11/24/2022] Open
Abstract
Background Osteoarthritis (OA) is the main cause of older pain and disability. Intra-articular injections of ozone (O3) commonly have been found to have antioxidative and anti-inflammatory effects to reduce pain and improve function in knee osteoarthritis. It has been reported that reduced autophagy in chondrocytes plays an important role in the development of OA. This study aimed to probe the role of O3 on the autophagy in chondrocytes treated with IL-1β. Methods Primary chondrocytes were isolated from Wistar rats cartilage within 3 days. The OA chondrocytes model was induced via treatment with IL-1β for 24 h. Then the cells were treated with O3 and GW9662, the inhibitor of PPARγ. Cell viability was assessed by CCK-8. Further, the cells subjected to Western blot analysis, qRT-PCR and immunofluorescence assay. The numbers of autophagosomes were observed via transmission electron microscopy. Results 30 μg/ml O3 improved the viability of chondrocytes treated with IL-1β. The decreased level of autophagy proteins and the numbers of autophagosomes improved in IL-1β-treated chondrocytes with O3 via activating PPARγ/mTOR. In addition, the qRT-PCR results showed that O3 decreased the levels of IL-6, TNF-α and MMP-3, MMP-13 in chondrocytes treated with IL-1β. Conclusions 30 μg/ml O3 improved autophagy via activating PPARγ/mTOR signaling and suppressing inflammation in chondrocytes treated with IL-1β.
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Affiliation(s)
- Panpan Sun
- Department of Pain Management, The Second Hospital of Shandong University, Jinan, 250033, People's Republic of China.,Department of Pain Management, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, People's Republic of China
| | - Weicheng Xu
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, People's Republic of China
| | - Xu Zhao
- Department of Anesthesiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, People's Republic of China
| | - Cong Zhang
- Department of Pain Management, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, People's Republic of China
| | - Xiaowen Lin
- Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, People's Republic of China
| | - Moxuan Gong
- Department of Anesthesiology, The Second Hospital of Shandong University, Jinan, 250033, People's Republic of China
| | - Zhijian Fu
- Department of Pain Management, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250021, People's Republic of China. .,Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, People's Republic of China.
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16
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Li MY, Liu HY, Wu DT, Kenaan A, Geng F, Li HB, Gunaratne A, Li H, Gan RY. L-Theanine: A Unique Functional Amino Acid in Tea ( Camellia sinensis L.) With Multiple Health Benefits and Food Applications. Front Nutr 2022; 9:853846. [PMID: 35445053 PMCID: PMC9014247 DOI: 10.3389/fnut.2022.853846] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 02/14/2022] [Indexed: 11/24/2022] Open
Abstract
Tea (Camellia sinensis L.) is a very popular health drink and has attracted increasing attention in recent years due to its various bioactive substances. Among them, L-theanine, a unique free amino acid, is one of the most important substances in tea and endows tea with a special flavor. Moreover, L-theanine is also a bioactive compound with plenty of health benefits, including antioxidant, anti-inflammatory, neuroprotective, anticancer, metabolic regulatory, cardiovascular protective, liver and kidney protective, immune regulatory, and anti-obesity effects. Due to the unique characteristics and beneficial functions, L-theanine has potential applications in the development of functional foods. This review summarized the influencing factors of L-theanine content in teas, the main health benefits and related molecular mechanisms of L-theanine, and its applications in food, understanding of which can provide updated information for the further research of L-theanine.
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Affiliation(s)
- Ming-Yue Li
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China.,Research Center for Plants and Human Health, Chengdu National Agricultural Science and Technology Center, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, China
| | - Hong-Yan Liu
- Research Center for Plants and Human Health, Chengdu National Agricultural Science and Technology Center, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, China
| | - Ding-Tao Wu
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Ahmad Kenaan
- National Graphene Institute, The University of Manchester, Manchester, United Kingdom
| | - Fang Geng
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition, and Health, Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Anil Gunaratne
- Faculty of Agricultural Sciences, Sabaragamuwa University of Sri Lanka, Belihuloya, Sri Lanka
| | - Hang Li
- Research Center for Plants and Human Health, Chengdu National Agricultural Science and Technology Center, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, China
| | - Ren-You Gan
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Sichuan Engineering & Technology Research Center of Coarse Cereal Industrialization, School of Food and Biological Engineering, Chengdu University, Chengdu, China.,Research Center for Plants and Human Health, Chengdu National Agricultural Science and Technology Center, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, China
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17
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Ma T, Lv L, Yu Y, Jia L, Song X, Xu X, Li T, Sheng X, Wang H, Zhang J, Gao L. Bilobalide Exerts Anti-Inflammatory Effects on Chondrocytes Through the AMPK/SIRT1/mTOR Pathway to Attenuate ACLT-Induced Post-Traumatic Osteoarthritis in Rats. Front Pharmacol 2022; 13:783506. [PMID: 35281931 PMCID: PMC8905364 DOI: 10.3389/fphar.2022.783506] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 01/21/2022] [Indexed: 12/28/2022] Open
Abstract
Although osteoarthritis (OA) significantly affects the quality of life of the elderly, there is still no effective treatment strategy. The standardized Ginkgo biloba L. extract preparation has been shown to have a wide range of therapeutic effects. Bilobalide, a unique ingredient of Ginkgo biloba, has anti-inflammatory and antioxidant pharmacological properties, but its mechanism of action on OA remains unknown. In this study, we investigated the effects of bilobalide on the development of OA through in vivo and in vitro experiments, as well as its potential anti-inflammatory mechanisms. The in vitro experiments demonstrated that bilobalide significantly inhibited the production of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), and matrix metalloproteinase 13 (MMP13) in ATDC5 chondrocytes induced by Interleukin-1β (IL-1β). At the molecular level, bilobalide induced chondrocyte autophagy by activating the AMPK/SIRT1/mTOR signaling pathway, which increased the expression of autophagy-related Atg genes, up-regulated the expression of LC3 protein, and reduced the expression of the p62 protein. In vivo, bilobalide exerted significant anti-inflammatory and anti-extracellular matrix (ECM) degradation effects in a rat model of post-traumatic OA (PTOA) induced by anterior cruciate ligament transection (ACLT). Bilobalide could relieve joint pain in PTOA rats, inhibit the expression of iNOS and COX-2 protein in cartilage via the AMPK/SIRT1/mTOR pathway, and reduce the level of ECM degradation biomarkers in serum. In conclusion, bilobalide exhibits vigorous anti-inflammatory activity, presenting it as an interesting potential therapeutic agent for OA.
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Affiliation(s)
- Tianwen Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Liangyu Lv
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Yue Yu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Lina Jia
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Xiaopeng Song
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - XinYu Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Ting Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Xuanbo Sheng
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Haoran Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Jiantao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
| | - Li Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Heilongjiang Key Laboratory of Animals Disease Pathogenesis and Comparative Medicine, Harbin, China
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18
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Jang G, Lee SA, Hong JH, Park BR, Kim DK, Kim CS. Chondroprotective Effects of 4,5-Dicaffeoylquinic Acid in Osteoarthritis through NF-κB Signaling Inhibition. Antioxidants (Basel) 2022; 11:antiox11030487. [PMID: 35326137 PMCID: PMC8944529 DOI: 10.3390/antiox11030487] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/26/2022] [Accepted: 02/26/2022] [Indexed: 01/27/2023] Open
Abstract
Osteoarthritis (OA) is characterized by cartilage degradation, inflammation, and pain. The dicaffeoylquinic acid (diCQA) isomer, 4,5-diCQA, exhibits antioxidant activity and various other health-promoting benefits, but its chondroprotective effects have yet to be elucidated. In this study, we aimed to investigate the chondroprotective effects of 4,5-diCQA on OA both in vitro and in vivo. Primary rat chondrocytes were pre-treated with 4,5-diCQA for 1 h before stimulation with interleukin (IL)-1β (5 ng/mL). The accumulation of nitrite, PGE2, and aggrecan was observed using the Griess reagent and ELISA. The protein levels of iNOS, COX-2, MMP-3, MMP-13, ADMATS-4, MAPKs, and the NF-κB p65 subunit were measured by Western blotting. In vivo, the effects of 4,5-diCQA were evaluated for 2 weeks in a destabilization of the medial meniscus (DMM)-surgery-induced OA rat model. 4,5-diCQA significantly inhibited IL-1β-induced expression of nitrite, iNOS, PGE2, COX-2, MMP-3, MMP-13, and ADAMTS-4. 4,5-diCQA also decreased the IL-1β-induced degradation of aggrecan. It also suppressed the IL-1β-induced phosphorylation of MAPKs and translocation of the NF-κB p65 subunit to the nucleus. These findings indicate that 4,5-diCQA inhibits DMM-surgery-induced cartilage destruction and proteoglycan loss in vivo. 4,5-diCQA may be a potential therapeutic agent for the alleviation of OA progression. In this study, diclofenac was set to be administered once every two days, but it showed an effect on OA. These results may be used as basic data to suggest a new dosing method for diclofenac.
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Affiliation(s)
- Goeun Jang
- Department of Oral Biochemistry, College of Dentistry, Chosun University, Gwangju 61452, Korea; (G.J.); (S.A.L.)
| | - Seul Ah Lee
- Department of Oral Biochemistry, College of Dentistry, Chosun University, Gwangju 61452, Korea; (G.J.); (S.A.L.)
| | - Joon Ho Hong
- Nano Bio Research Center, Jeonnam Bioindustry Foundation, Wando 59108, Korea;
| | - Bo-Ram Park
- Department of Dental Hygiene, College of Health and Welfare, Kyungwoon University, Gumi 39160, Korea;
| | - Do Kyung Kim
- Oral Biology Research Institute, College of Dentistry, Chosun University, Gwangju 61452, Korea;
| | - Chun Sung Kim
- Department of Oral Biochemistry, College of Dentistry, Chosun University, Gwangju 61452, Korea; (G.J.); (S.A.L.)
- Correspondence: ; Tel.: +82-62-230-7088; Fax: +82-62-232-6896
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Ma T, Ma Y, Yu Y, Jia L, Lv L, Song X, Tang J, Xu X, Sheng X, Li T, Gao L. Emodin Attenuates the ECM Degradation and Oxidative Stress of Chondrocytes through the Nrf2/NQO1/HO-1 Pathway to Ameliorate Rat Osteoarthritis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5581346. [PMID: 39346968 PMCID: PMC11427723 DOI: 10.1155/2022/5581346] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 07/06/2021] [Accepted: 12/24/2021] [Indexed: 10/01/2024]
Abstract
Osteoarthritis (OA) substantially reduces the quality of life of the elderly. OA therapy remains a challenge since no treatment options for its causes are so far available. Over recent years, researchers have speculated that emodin may represent a potential treatment strategy for OA. However, it remains unclear whether the mechanism of action of emodin is associated with the inhibition of OA-induced oxidative stress. In the present study, the potential antioxidant mechanism of action of emodin and its protective properties against the development of OA were investigated both in vitro and in vivo. In vitro, emodin inhibited the production of reactive oxygen species (ROS) in chondrocytes induced by hydrogen peroxide (H2O2) and reduced the expression of matrix metalloproteinase (MMP)3 and MMP13 in a concentration-dependent manner. It was found that emodin upregulated the Nrf2/NQO1/HO-1 pathway, thereby attenuating the effects of oxidative stress caused by OA. In a rat model of posttraumatic OA induced by anterior cruciate ligament transection (ACLT), emodin reduced the extent of joint swelling. Emodin attenuated oxidative damage in the cartilage by upregulating superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH) activity, reducing malondialdehyde (MDA) concentration and inhibiting the expression of the extracellular matrix (ECM) degradation biomarkers cartilage oligomeric matrix protein (COMP), and C-terminal telopeptide of type I collagen (CTX-I) and type II collagen (CTX-II), thereby reducing cartilage damage. In summary, the present study indicates that emodin reduces ECM degradation and oxidative stress in chondrocytes via the Nrf2/NQO1/HO-1 pathway, thereby ameliorating OA in rats.
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Affiliation(s)
- Tianwen Ma
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yuanqiang Ma
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yue Yu
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Lina Jia
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Liangyu Lv
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xiaopeng Song
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jilang Tang
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xinyu Xu
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xuanbo Sheng
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Ting Li
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Li Gao
- Heilongjiang Key Laboratory for Animal Disease Pathogenesis and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
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20
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Yang Z, Xie C, Ou S, Zhao M, Lin Z. Cutoff points of T1 rho/T2 mapping relaxation times distinguishing early-stage and advanced osteoarthritis. Arch Med Sci 2022; 18:1004-1015. [PMID: 35832709 PMCID: PMC9266714 DOI: 10.5114/aoms/140714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/01/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION The histopathology grading system is the gold standard post-operative method to evaluate cartilage degeneration in knee osteoarthritis (OA). Magnetic resonance imaging (MRI) T1 rho/T2 mapping imaging can be used for preoperative detection. An association between histopathology and T1 rho/T2 mapping relaxation times was suggested in previous research. However, the cutoff point was not determined among different histopathology grades. Our study aimed to determine the cutoff point of T1 rho/T2 mapping. MATERIAL AND METHODS T1 rho/T2 mapping images were acquired from 80 samples before total knee replacements. Then the histopathology grading system was applied. RESULTS The mean T1 rho/T2 mapping relaxation times of 80 samples were 39.17 ms and 37.98 ms respectively. Significant differences were found in T1 rho/T2 mapping values between early-stage and advanced OA (p < 0.001). The cutoff point for T1 rho was 33 ms with a sensitivity of 94.12 (95% CI: 80-99.3) and a specificity of 91.30 (95% CI: 79.2-97.6). The cutoff point for T2 mapping was suggested as 35.04 ms with a sensitivity of 88.24 (95% CI: 72.5-96.7) and specificity of 97.83 (95% CI: 88.5-99.9). After bootstrap simulation, the 95% CI of the T1 rho/T2 mapping cutoff point was estimated as 29.36 to 36.32 ms and 34.8 to 35.04 ms respectively. The area under the PR curve of T1 rho/T2 mapping was 0.972 (95% CI: 0.925-0.992) and 0.949 (95% CI: 0.877-0.989) respectively. CONCLUSIONS The cutoff point of T1 rho relaxation times, which was suggested as 33 ms, could be used to distinguish early-stage and advanced OA.
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Affiliation(s)
- Zhijian Yang
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Chao Xie
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Songwen Ou
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Minning Zhao
- Department of Radiology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhaowei Lin
- Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
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21
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Sun L, Wen S, Li Q, Lai X, Chen R, Zhang Z, Li D, Sun S. L-theanine relieves acute alcoholic liver injury by regulating the TNF-α/NF-κB signaling pathway in C57BL/6J mice. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104699] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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22
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Intra-articular Injection of Baicalein Inhibits Cartilage Catabolism and NLRP3 Inflammasome Signaling in a Posttraumatic OA Model. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6116890. [PMID: 34512868 PMCID: PMC8433010 DOI: 10.1155/2021/6116890] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/06/2021] [Accepted: 08/17/2021] [Indexed: 11/18/2022]
Abstract
Baicalein has been shown to have chondroprotective potential in vitro. However, its effect on disease modification in osteoarthritis (OA) is largely unknown. The present study is aimed at determining whether baicalein could slow the progression of OA and inhibit OA-related inflammation in a rat model of destabilization of the medial meniscus (DMM) and the underlying mechanisms. The rats subjected to DMM surgery were treated with baicalein (0.8, 1.6, and 3.2 μg/L, 50 μL, once a week) by intra-articular injection for 6 weeks. Dexamethasone (0.4 mg/mL, 50 μL, once a week) was used as a positive control. Histologic grading of cartilage degeneration was performed using the Osteoarthritis Research Society International (OARSI) recommended grading system (on a scale of 0-6). The expression levels of molecules associated with cartilage homeostasis and inflammatory cytokines were analyzed; moreover, the NLRP3 inflammasome activation and cartilage oxidative stress-associated molecules were determined. Baicalein treatment reduced the OARSI score and slowed OA disease progression in a dose-dependent manner within a certain range. Compared with DMM rats, intra-articular injection of baicalein led to (1) reduced levels of inflammatory mediates such as IL-1β and TNF-α, (2) reduced immunochemical staining of MMP-13 and ADAMTS-5, (3) suppressed immunochemical staining loss of type II collagen, (4) reduced expression of cartilage degradation markers including CTX-II and COMP in urine, and (5) inhibited NLRP3 inflammasome activation rather than regulated expression of SOD, GSH, and MDA. In contrast to the administration of baicalein, dexamethasone injection showed similar effects to slow OA progression, while dexamethasone inhibited NLRP3 inflammasome partly through decreasing levels of SOD, GSH, and MDA. This study indicated that baicalein may have the potential for OA prevention and exerts anti-inflammatory effects partly via suppressing NLRP3 inflammasome activation without affecting oxidative stress-associated molecules, and inhibition of cartilage catabolism enzymes in an OA rat model.
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de Sire A, Marotta N, Marinaro C, Curci C, Invernizzi M, Ammendolia A. Role of Physical Exercise and Nutraceuticals in Modulating Molecular Pathways of Osteoarthritis. Int J Mol Sci 2021; 22:5722. [PMID: 34072015 PMCID: PMC8198532 DOI: 10.3390/ijms22115722] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/23/2021] [Accepted: 05/26/2021] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a painful and disabling disease that affects millions of patients. Its etiology is largely unknown, but it is most likely multifactorial. OA pathogenesis involves the catabolism of the cartilage extracellular matrix and is supported by inflammatory and oxidative signaling pathways and marked epigenetic changes. To delay OA progression, a wide range of exercise programs and naturally derived compounds have been suggested. This literature review aims to analyze the main signaling pathways and the evidence about the synergistic effects of these two interventions to counter OA. The converging nutrigenomic and physiogenomic intervention could slow down and reduce the complex pathological features of OA. This review provides a comprehensive picture of a possible signaling approach for targeting OA molecular pathways, initiation, and progression.
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Affiliation(s)
- Alessandro de Sire
- Department of Medical and Surgical Sciences, University of Catanzaro “Magna Graecia”, 88100 Catanzaro, Italy; (N.M.); (C.M.); (A.A.)
| | - Nicola Marotta
- Department of Medical and Surgical Sciences, University of Catanzaro “Magna Graecia”, 88100 Catanzaro, Italy; (N.M.); (C.M.); (A.A.)
| | - Cinzia Marinaro
- Department of Medical and Surgical Sciences, University of Catanzaro “Magna Graecia”, 88100 Catanzaro, Italy; (N.M.); (C.M.); (A.A.)
| | - Claudio Curci
- Physical Medicine and Rehabilitation Unit, Department of Neurosciences, ASST Carlo Poma, 46100 Mantova, Italy;
| | - Marco Invernizzi
- Physical Medicine and Rehabilitation, Department of Health Sciences, University of Eastern Piedmont, 28100 Novara, Italy;
- Translational Medicine, Dipartimento Attività Integrate Ricerca e Innovazione (DAIRI), Azienda Ospedaliera S.S. Antonio e Biagio e Cesare Arrigo, 15121 Alessandria, Italy
| | - Antonio Ammendolia
- Department of Medical and Surgical Sciences, University of Catanzaro “Magna Graecia”, 88100 Catanzaro, Italy; (N.M.); (C.M.); (A.A.)
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Ma TW, Wen YJ, Song XP, Hu HL, Li Y, Bai H, Zhao MC, Gao L. Puerarin inhibits the development of osteoarthritis through antiinflammatory and antimatrix-degrading pathways in osteoarthritis-induced rat model. Phytother Res 2021; 35:2579-2593. [PMID: 33350519 DOI: 10.1002/ptr.6988] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 12/15/2022]
Abstract
Puerarin is an isoflavone isolated from the medicinal plant Pueraria lobata. The purpose of this study was to study the antiinflammatory and antimatrix-degrading effects of puerarin in a rat osteoarthritis (OA) model and its protective effects on joints. The rat OA model was established by anterior cruciate ligament transection (ACLT) surgery. Rats (n = 40) were divided into nontreated OA, OA + celecoxib (2.86 mg/kg), OA + puerarin (50 and 100 mg/kg), and control groups. Two weeks after surgical induction, puerarin was administered by gavage daily for 8 weeks. After 8 weeks, macroscopic observation and histopathological images showed that cartilage damage was reduced after puerarin and celecoxib treatment, the intensity of Safranin O staining was high, and the OARSI scores were significantly reduced compared to the OA group. Puerarin reduced the expression of MMP-3, MMP-13, ADAMTS-5, and COX-2 in the cartilage tissue of ACLT rats, inhibited the production of IL-1β, IL-6, and TNF-α inflammatory factors, increased Type II collagen content, and altered the expression of serum OA cartilage degradation/bone turnover biomarkers (CTX-I, CTX-II, COMP, and PIINP). Based on these findings, we speculate that puerarin supplement to attain recovery from OA damage.
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Affiliation(s)
- Tian-Wen Ma
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Ya-Jing Wen
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xiao-Peng Song
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Hai-Long Hu
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yue Li
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Hui Bai
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Ming-Chao Zhao
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Li Gao
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
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Schulze-Tanzil G. Experimental Therapeutics for the Treatment of Osteoarthritis. J Exp Pharmacol 2021; 13:101-125. [PMID: 33603501 PMCID: PMC7887204 DOI: 10.2147/jep.s237479] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/07/2021] [Indexed: 12/18/2022] Open
Abstract
Osteoarthritis (OA) therapy remains a large challenge since no causative treatment options are so far available. Despite some main pathways contributing to OA are identified its pathogenesis is still rudimentary understood. A plethora of therapeutically promising agents are currently tested in experimental OA research to find an opportunity to reverse OA-associated joint damage and prevent its progression. Hence, this review aims to summarize novelly emerging experimental approaches for OA. Due to the diversity of strategies shown only main aspects could be summarized here including herbal medicines, nanoparticular compounds, growth factors, hormones, antibody-, cell- and extracellular vesicle (EV)-based approaches, optimized tools for joint viscosupplementation, genetic regulators such as si- or miRNAs and promising combinations. An abundant multitude of compounds obtained from plants, environmental, autologous or synthetic sources have been identified with anabolic, anti-inflammatory, -catabolic and anti-apoptotic properties. Some ubiquitous signaling pathways such as wingless and Integration site-1 (Wnt), Sirtuin, Toll-like receptor (TLR), mammalian target of rapamycin (mTOR), Nuclear Factor (NF)-κB and complement are involved in OA and addressed by them. Hyaluronan (HA) provided benefit in OA since many decades, and novel HA formulations have been developed now with higher HA content and long-term stability achieved by cross-linking suitable to be combined with other agents such as components from herbals or chemokines to attract regenerative cells. pH- or inflammation-sensitive nanoparticular compounds could serve as versatile slow-release systems of active compounds, for example, miRNAs. Some light has been brought into the intimate regulatory network of small RNAs in the pathogenesis of OA which might be a novel avenue for OA therapy in future. Attraction of autologous regenerative cells by chemokines and exosome-based treatment strategies could also innovate OA therapy.
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Affiliation(s)
- Gundula Schulze-Tanzil
- Department of Anatomy and Cell Biology, Paracelsus Medical University, Nuremberg, Bavaria, Germany
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Li Z, Zhai W, Sun Q, Hu S, Ma Y, Zhang B. Clinical severity of serum S100A12 levels in patients with osteoarthritis and S100A12 open inflammation of osteoarthritis model by NLRP3. EUR J INFLAMM 2021. [DOI: 10.1177/20587392211014429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Osteoarthritis is a common chronic bone and joint disease, which is characterized by degenerative changes and destruction of articular cartilage, secondary hyperostosis. This study aimed to investigate the clinical severity and mechanism of S100A12 in patients with osteoarthritis. Serum samples were obtained from patients with osteoarthritis or normal volunteer in Minhang Branch of Yueyang Hospital of Integrated Traditional Chinese and Western Medicine affiliated to Shanghai University of Traditional Chinese Medicine (Shanghai, China). C57BL/6J mice performed Resection of the medial collateral ligament and medial meniscus as mice model. MC3T3-E1 cells were induced with 100 ng of LPS as vitro model. The serum level of S100A12 was increased in patients with osteoarthritis. Similarly, S100A12 levels of serum and bone tissue from mice model of osteoarthritis were also higher than those of sham group. Over-expression of S100A12 promoted inflammation levels while down-regulation of S100A12 decreased inflammation levels in in vitro model of osteoarthritis. NLRP3 is an important target of S100A12 in pro-inflammation effects of osteoarthritis. NLRP3 was involved in the effects of S100A12 on inflammation in in vitro model of osteoarthritis. S100A12 also accelerated inflammation by NLRP3 in mice model of osteoarthritis. We conclude that serum S100A12 levels was a possible clinical severity, open inflammation of osteoarthritis model by NLRP3 and its receptors may be effective in preventing the development of osteoarthritis.
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Affiliation(s)
- Zhi Li
- Department of Orthopedics, Minhang Branch of Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai Minhang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Weitao Zhai
- Department of Joint surgery, Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Qinggang Sun
- Department of Orthopedics, Minhang Branch of Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai Minhang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Shipeng Hu
- Department of Orthopedics, Minhang Branch of Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai Minhang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Yinghui Ma
- Department of Joint surgery, Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
| | - Bin Zhang
- Department of Orthopedics, Minhang Branch of Yueyang Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai Minhang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, China
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Wang Y, Li M, Li L, Ning J, Zhang Z. Green analytical assay for the quality assessment of tea by using pocket-sized NIR spectrometer. Food Chem 2020; 345:128816. [PMID: 33316713 DOI: 10.1016/j.foodchem.2020.128816] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 11/07/2020] [Accepted: 12/02/2020] [Indexed: 01/14/2023]
Abstract
Rapid and low-cost testing tools provide new methods for the evaluation of tea quality. In this study, a micro near-infrared (NIR) spectrometer was used for the qualitative and quantitative evaluation of tea. A total of 360 tea samples consisting of black, green, yellow, and oolong tea were collected from different countries. Chemometrics including linear partial least squares (PLS) regression, PLS discriminant analysis, and nonlinear radial basis function-support vector machine (RBF-SVM) were used. The RBF-SVM model achieved optimal discriminant performance for tea types with a correct classification rate of 98.33%. Wavelength selection of iteratively variable subset optimization (IVSO) exhibited considerable advantages in improving the predictive performance of catechin, caffeine, and theanine models. The IVSO-PLS regression models achieved satisfactory results for catechins and caffeine prediction, with Rp over 0.9, and RPD over 2.5. Thus, the study provided a portable and low-cost method for in-situ assessing tea quality.
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Affiliation(s)
- Yujie Wang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China
| | - Menghui Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China
| | - Luqing Li
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China
| | - Jingming Ning
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China.
| | - Zhengzhu Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China.
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