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He S, Chen Y, Wang H, Li S, Wei Y, Zhang H, Gao Q, Wang F, Zhang R. Neuroprotective effects of chlorogenic acid: Modulation of Akt/Erk1/2 signaling to prevent neuronal apoptosis in Parkinson's disease. Free Radic Biol Med 2024; 222:275-287. [PMID: 38925315 DOI: 10.1016/j.freeradbiomed.2024.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/19/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024]
Abstract
As a prevalent neurodegenerative disorder, Parkinson's disease is associated with oxidative stress. Our recent investigations revealed that reactive oxygen species (ROS) and PD-toxins like 6-hydroxydopamine (6-OHDA) can induce neuronal apoptosis through over-activation of Akt signaling. Chlorogenic acid (CGA), a natural acid phenol abundant in the human diet, is well-documented for its ability to mitigate intracellular ROS. In this study, we utilized CGA to treat experimental models of PD both in vitro and in vivo. Our study results demonstrated that SH-SY5Y and primary neurons exhibited cell apoptosis in response to 6-OHDA. Pretreatment with CGA significantly attenuated PD toxins-induced large amount of ROS, inhibiting Erk1/2 activation, preventing Akt inhibition, and hindering neuronal cell death. Combining the Erk1/2 inhibitor U0126 with CGA could reverse 6-OHDA-induced Akt inhibition, ROS, and apoptosis in the cells. Crucially, the Akt activator SC79 and ROS scavenger NAC both could eliminate excessive ROS via Akt and Erk1/2 signaling pathways, and CGA further potentiated these effects in PD models. Behavioral experiments revealed that CGA could alleviate gait abnormalities in PD model mice. The neuroprotective effects have been demonstrated in several endocrine regions and in the substantia nigra tissue, which shows the positive tyrosine hydroxylase (TH). Overall, our results suggest that CGA prevents the activation of Erk1/2 and inactivation of Akt by removing excess ROS in PD models. These findings propose a potential strategy for mitigating neuronal degeneration in Parkinson's disease by modulating the Akt/Erk1/2 signaling pathway through the administration of CGA and/or the use of antioxidants to alleviate oxidative stress.
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Affiliation(s)
- Shuai He
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China
| | - Yuxiang Chen
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China
| | - Hui Wang
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China
| | - Shupei Li
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China
| | - Yu Wei
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China
| | - Hui Zhang
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China
| | - Qian Gao
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China
| | - Fengsong Wang
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China.
| | - Ruijie Zhang
- College of Life Sciences, Anhui Medical University, Anhui, 230032, PR China.
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Park EH, Lee I, Park GC, Lee SJ, Kim KJ, Yun J, Kim DO. Anti-photoaging effects of canola meal extract on human dermal fibroblasts against UVB-induced oxidative stress. Food Sci Biotechnol 2024; 33:667-676. [PMID: 38274185 PMCID: PMC10805684 DOI: 10.1007/s10068-023-01379-x] [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: 02/28/2023] [Revised: 06/06/2023] [Accepted: 06/25/2023] [Indexed: 01/27/2024] Open
Abstract
Canola meal, a by-product of canola oil processing, is a source of bioactive compounds that show antioxidant and skin anti-aging effects through upcycling (i.e., creative reuse). Here we describe the antioxidant and skin anti-aging effects of canola meal extract (CME) obtained by upcycling canola meal. The antioxidant capacity of CME is due in part to its antioxidative phenolics. Seven phenolics, including sinapine and sinapic acid, in CME were identified using ultra-high-performance liquid chromatography-Orbitrap mass spectrometry. Addition of CME (1000 μg/mL) to human dermal fibroblast neonatal cells significantly (p < 0.05) reduced matrix metalloproteinase-12 production and increased pro-collagen Ι alpha 1 content in response to ultraviolet B-induced oxidative stress compared with cells without CME. These results suggest that CME can serve as a functional food ingredient with antioxidant capacity and anti-aging effects on the skin.
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Affiliation(s)
- Eun-Ha Park
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Inil Lee
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
- Re&C Bio, Cheongju, 28106 Republic of Korea
| | - Gi-Cheol Park
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Seung-Ju Lee
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Kwan Joong Kim
- Bioinformatics and Molecular Design Research Center, Incheon, 21983 Republic of Korea
| | - Jisuk Yun
- Re&C Bio, Cheongju, 28106 Republic of Korea
| | - Dae-Ok Kim
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin, 17104 Republic of Korea
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Zhu T, Liu H, Gao S, Jiang N, Chen S, Xie W. Effect of salidroside on neuroprotection and psychiatric sequelae during the COVID-19 pandemic: A review. Biomed Pharmacother 2024; 170:115999. [PMID: 38091637 DOI: 10.1016/j.biopha.2023.115999] [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: 09/20/2023] [Revised: 11/22/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has affected the mental health of individuals worldwide, and the risk of psychiatric sequelae and consequent mental disorders has increased among the general population, health care workers and patients with COVID-19. Achieving effective and widespread prevention of pandemic-related psychiatric sequelae to protect the mental health of the global population is a serious challenge. Salidroside, as a natural agent, has substantial pharmacological activity and health effects, exerts obvious neuroprotective effects, and may be effective in preventing and treating psychiatric sequelae and mental disorders resulting from stress stemming from the COVID-19 pandemic. Herein, we systematically summarise, analyse and discuss the therapeutic effects of salidroside in the prevention and treatment of psychiatric sequelae as well as its roles in preventing the progression of mental disorders, and fully clarify the potential of salidroside as a widely applicable agent for preventing mental disorders caused by stress; the mechanisms underlying the potential protective effects of salidroside are involved in the regulation of the oxidative stress, neuroinflammation, neural regeneration and cell apoptosis in the brain, the network homeostasis of neurotransmission, HPA axis and cholinergic system, and the improvement of synaptic plasticity. Notably, this review innovatively proposes that salidroside is a potential agent for treating stress-induced health issues during the COVID-19 pandemic and provides scientific evidence and a theoretical basis for the use of natural products to combat the current mental health crisis.
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Affiliation(s)
- Ting Zhu
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao 266071, China
| | - Hui Liu
- Guizhou Provincial Key Laboratory of Pharmaceutics & State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Shiman Gao
- Department of Clinical Pharmacy, Women and Children's Hospital, Qingdao University, Qingdao 266034, China
| | - Ning Jiang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.
| | - Shuai Chen
- School of Public Health, Wuhan University, Donghu Road No. 115, Wuchang District, Wuhan 430071, China.
| | - Weijie Xie
- Clinical Research Center for Mental Disorders, Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200122, China.
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Bock HJ, Lee NK, Paik HD. Neuroprotective Effects of Heat-Killed Levilactobacillus brevis KU15152 on H 2O 2-Induced Oxidative Stress. J Microbiol Biotechnol 2023; 33:1189-1196. [PMID: 37317628 PMCID: PMC10580890 DOI: 10.4014/jmb.2304.04045] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/09/2023] [Accepted: 05/15/2023] [Indexed: 06/16/2023]
Abstract
This study proposed to demonstrate the neuroprotective effects of heat-killed Levilactobacillus brevis KU15152. Heat-killed L. brevis KU15152 showed antioxidant activity similar to that of Lacticaseibacillus rhamnosus GG, in terms of radical scavenging activity. To evaluate the neuroprotective effects, conditioned medium (CM) obtained by incubating heat-killed bacteria in intestinal cells (HT-29) was used through gut-brain axis. CM from L. brevis KU15152 protected neuroblastoma cells (SH-SY5Y) against H2O2-induced oxidative stress. Pretreatment with CM significantly alleviated the morphological changes induced by H2O2. Heat-killed L. brevis KU15152 showed an increased brain-derived neurotrophic factor (BDNF) expression in HT-29 cells. L. brevis KU15152-CM remarkably downregulated the Bax/Bcl-2 ratio, while upregulating the expression of BDNF and tyrosine hydroxylase (TH) in SH-SY5Y cells. Furthermore, L. brevis KU15152-CM reduced caspase-3 activity following H2O2 treatment. In conclusion, L. brevis KU15152 can be potentially used as food materials to avoid neurodegenerative diseases.
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Affiliation(s)
- Hyun-Ji Bock
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea
| | - Na-Kyoung Lee
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea
| | - Hyun-Dong Paik
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Republic of Korea
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Park JY, Kim KT, Paik HD. Neuroprotective effects of hydroponic ginseng fermented by Lactococcus lactis KC24 in oxidatively stressed SH-SY5Y cells. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4413-4420. [PMID: 36806249 DOI: 10.1002/jsfa.12515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 01/30/2023] [Accepted: 02/20/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND Panax ginseng Meyer, a traditional herb in Asia, contains bioactive compounds such as polyphenolic compounds, flavonoids, and ginsenosides. Furthermore, fermentation with probiotics can promote the biofunctional activities of ginseng. This study's object was to investigate the neuroprotective effect of hydroponic ginseng against hydrogen peroxide (H2 O2 )-induced cytotoxicity and its effect on the fermentation time. RESULTS Nonfermented hydroponic ginseng (HNF) was fermented with Lactococcus lactis KC24 at 37 °C for 12 h (H12F) or 24 h (H24F). As fermentation progressed, the content of ginsenosides Rd and F2 increased slightly. The viability of cells pretreated with H2 O2 -exposed nonfermented soil-cultivated ginseng (SNF), HNF, H12F, and H24F gradually improved. In addition, a similar cytotoxicity trend was observed for the level of lactate dehydrogenase released. Fermentation with L. lactis KC24 also enhanced the protective effect of HNF in all assays related to the neuroprotective pathway. In other words, superoxide dismutase and catalase messenger RNA (mRNA) expression levels were upregulated in H24F-treated cells. Similarly, H24F also upregulated the mRNA and protein expression of brain-derived neurotrophic factor to the highest observed concentration. Moreover, the Bax/Bcl-2 ratio was the lowest after H24F pretreatment in H2 O2 -induced SH-SY5Y cells. Attenuating the cytotoxicity in H2 O2 -induced SH-SY5Y cells, H24F markedly reduced caspase-3 and -9 mRNA expression and caspase-3 activity. CONCLUSION These results suggest that HNF exhibited higher neuroprotection than SNF, which was enhanced after fermentation. This study demonstrates that H12F and H24F can be potential ingredients for developing healthy functional foods and pharmaceutical materials. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Ji-Young Park
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul, Republic of Korea
| | - Kee-Tae Kim
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul, Republic of Korea
| | - Hyun-Dong Paik
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul, Republic of Korea
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Sęczyk Ł, Sugier D, Dervişoğlu G, Özdemir FA, Kołodziej B. Phytochemical profile, in vitro bioaccessibility, and anticancer potential of golden root (Rhodiola rosea L.) extracts. Food Chem 2023; 404:134779. [DOI: 10.1016/j.foodchem.2022.134779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/09/2022] [Accepted: 10/25/2022] [Indexed: 11/22/2022]
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Zhu H, Liu C, Qian H. Pharmaceutical Potential of High-Altitude Plants for Fatigue-Related Disorders: A Review. PLANTS 2022; 11:plants11152004. [PMID: 35956482 PMCID: PMC9370126 DOI: 10.3390/plants11152004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 07/22/2022] [Accepted: 07/26/2022] [Indexed: 11/17/2022]
Abstract
Natural plants from plateaus have been the richest source of secondary metabolites extensively used in traditional and modern health care systems. They were submitted to years of natural selection, co-evolved within that habitat, and show significant anti-fatigue-related pharmacological effects. However, currently, no review on high-altitude plants with anti-fatigue related properties has been published yet. This study summarized several Chinese traditional high-altitude plants, including Rhodiola rosea L., Crocus sativus L., Lepidium meyenii W., Hippophaerhamnoides L., which are widely used in the Qinghai–Tibet Plateau and surrounding mountains, as well as herbal markets in the plains. Based on phytopharmacology studies, deeper questions can be further revealed regarding how these plants regulate fatigue and related mental or physical disease conditions. Many active derivatives in high-altitude medical plants show therapeutic potential for the management of fatigue and related disorders. Therefore, high-altitude plants significantly relieve central or peripheral fatigue by acting as neuroprotective agents, energy supplements, metabolism regulators, antioxidant, and inflammatory response inhibitors. Their applications on the highland or flatland and prospects in natural medicine are further forecast, which may open treatments to reduce or prevent fatigue-related disorders in populations with sub-optimal health.
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Affiliation(s)
- Hongkang Zhu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (H.Z.); (C.L.)
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Chang Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (H.Z.); (C.L.)
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - He Qian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (H.Z.); (C.L.)
- Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi 214122, China
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
- Correspondence:
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Agapouda A, Grimm A, Lejri I, Eckert A. Rhodiola Rosea Extract Counteracts Stress in an Adaptogenic Response Curve Manner via Elimination of ROS and Induction of Neurite Outgrowth. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5647599. [PMID: 35602107 PMCID: PMC9122715 DOI: 10.1155/2022/5647599] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 04/11/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022]
Abstract
Background Sustained stress with the overproduction of corticosteroids has been shown to increase reactive oxygen species (ROS) leading to an oxidative stress state. Mitochondria are the main generators of ROS and are directly and detrimentally affected by their overproduction. Neurons depend almost solely on ATP produced by mitochondria in order to satisfy their energy needs and to form synapses, while stress has been proven to alter synaptic plasticity. Emerging evidence underpins that Rhodiola rosea, an adaptogenic plant rich in polyphenols, exerts antioxidant, antistress, and neuroprotective effects. Methods In this study, the effect of Rhodiola rosea extract (RRE) WS®1375 on neuronal ROS regulation, bioenergetics, and neurite outgrowth, as well as its potential modulatory effect on the brain derived neurotrophic factor (BDNF) pathway, was evaluated in the human neuroblastoma SH-SY5Y and the murine hippocampal HT22 cell lines. Stress was induced using the corticosteroid dexamethasone. Results RRE increased bioenergetics as well as cell viability and scavenged ROS with a similar efficacy in both cells lines and counteracted the respective corticosteroid-induced dysregulation. The effect of RRE, both under dexamethasone-stress and under normal conditions, resulted in biphasic U-shape and inverted U-shape dose response curves, a characteristic feature of adaptogenic plant extracts. Additionally, RRE treatment promoted neurite outgrowth and induced an increase in BDNF levels. Conclusion These findings indicate that RRE may constitute a candidate for the prevention of stress-induced pathophysiological processes as well as oxidative stress. Therefore, it could be employed against stress-associated mental disorders potentially leading to the development of a condition-specific supplementation.
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Affiliation(s)
- Anastasia Agapouda
- University of Basel, Transfaculty Research Platform, Molecular and Cognitive Neuroscience, Neurobiology Lab for Brain Aging and Mental Health, Basel, Switzerland
- Psychiatric University Clinics, Basel, Switzerland
| | - Amandine Grimm
- University of Basel, Transfaculty Research Platform, Molecular and Cognitive Neuroscience, Neurobiology Lab for Brain Aging and Mental Health, Basel, Switzerland
- Psychiatric University Clinics, Basel, Switzerland
| | - Imane Lejri
- University of Basel, Transfaculty Research Platform, Molecular and Cognitive Neuroscience, Neurobiology Lab for Brain Aging and Mental Health, Basel, Switzerland
- Psychiatric University Clinics, Basel, Switzerland
| | - Anne Eckert
- University of Basel, Transfaculty Research Platform, Molecular and Cognitive Neuroscience, Neurobiology Lab for Brain Aging and Mental Health, Basel, Switzerland
- Psychiatric University Clinics, Basel, Switzerland
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Cui J, Li M, Wei Y, Li H, He X, Yang Q, Li Z, Duan J, Wu Z, Chen Q, Chen B, Li G, Ming X, Xiong L, Qin D. Inhalation Aromatherapy via Brain-Targeted Nasal Delivery: Natural Volatiles or Essential Oils on Mood Disorders. Front Pharmacol 2022; 13:860043. [PMID: 35496310 PMCID: PMC9041268 DOI: 10.3389/fphar.2022.860043] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/22/2022] [Indexed: 02/05/2023] Open
Abstract
Mood disorders, also often referred to as affective disorders, are a group of psychiatric illnesses that severely impact mood and its related functions. The high medical expenditures have placed a significant financial burden on patients and their families. Aromatherapy is an alternative and complementary treatment that utilizes essential oils (EOs) or volatile oils (VOs) to achieve major therapeutic goals. In general, EOs are volatile chemicals that enter the body primarily through skin absorption and/or nasal inhalation. In addition, they can work through oral administration. Inhalation aromatherapy has shown unique advantages for treating mood disorders, especially depression, anxiety and mental disorders such as sleep disorder, which have been validated over the last decade through clinical and animal studies. Accumulating evidence has shown that EOs or VOs can bypass the blood-brain barrier to target brain tissue through the nasal-brain pathway. Subsequently, they act on the cerebral cortex, thalamus, and limbic system in the brain to improve symptoms of anxiety, depression and improve sleep quality. Here, we review the natural aromatic plants’ volatiles or essential oils used commonly as adjuncts to manage mood disorders and illustrate the mechanisms of inhalation aromatherapy, and mainly summarized the application of transnasal inhalation aromatherapy in depression, anxiety, and sleep disorders. We conclude that aromatherapy does not cause side-effects, which is vastly different from commonly used psychotropic drugs. Inhalation aromatherapy via brain-targeted nasal delivery offers potentially efficacious treatment for mental disorders and merits further study.
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Affiliation(s)
- Jieqiong Cui
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Meng Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Yuanyuan Wei
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Huayan Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiying He
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Qi Yang
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhengkun Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Jinfeng Duan
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Zhao Wu
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Qian Chen
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Bojun Chen
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Gang Li
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Xi Ming
- Department of TCM Pediatrics, Yunnan Provincial Hospital of Traditional Chinese Medicine, Kunming, China
| | - Lei Xiong
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Dongdong Qin
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
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