1
|
Chen ML, Jiang HY, Zeng J, Huang L, Lv CZ. Caffeic acid attenuates tissue damage and inflammatory response in Klebsiella pneumonia by modulating AhR-Src-STAT3-IL-10 signaling pathway. Environ Toxicol 2024; 39:2254-2264. [PMID: 38148636 DOI: 10.1002/tox.24086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 11/22/2023] [Accepted: 12/01/2023] [Indexed: 12/28/2023]
Abstract
CA is a plant derivative with antibacterial and antiviral pharmacological effects, however, the therapeutic effect of CA on Klebsiella pneumonia and its mechanism study is still unclear. A rat KP model was established in vitro, a pneumonia cell model was established in vivo, the histopathological changes in the lungs were observed by HE staining after CA treatment, the expression of relevant inflammatory factors was detected by ELISA, the changes in the expression of proteins related to the AhR-Src-STAT3-IL-10 signaling pathway were detected by Western blot and immunofluorescence in the lungs, and the interactions between the proteins were verified by COIP relationship. The results showed that CA was able to attenuate the injury and inflammatory response of lung tissues, and molecular docking showed that there were binding sites between CA and AhR, and COIP demonstrated that AhR interacted with both STAT3 and Ser. In addition, CA was able to up-regulate the expression levels of pathway-related proteins of AhR, IL-10, p-Src, and p-STAT3, and AhR knockdown was able to reduce LPS-induced inflammatory responses and up-regulate pathway-related proteins, whereas CA treatment of AhR-knockdown-treated A549 cells did not show any statistically significant difference compared with the AhR knockdown group, demonstrating that CA exerts its pharmacological effects. These findings elucidated the mechanism of CA in the treatment of KP and demonstrated that CA is a potential therapeutic agent for KP.
Collapse
Affiliation(s)
- Mei-Ling Chen
- Emergency and Trauma College, Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China
- Research Unit of Island Emergency Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou, China
| | - Hui-Yu Jiang
- Department of Rehabilitation, The Second Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Jun Zeng
- Emergency Medicine Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Ling Huang
- Center for Pharmacovigilance of Hainan Province, Hainan Medical Products Administration, Haikou, China
| | - Chuan-Zhu Lv
- Emergency and Trauma College, Hainan Medical University, Haikou, China
- Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, China
- Research Unit of Island Emergency Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou, China
- Emergency Medicine Center, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| |
Collapse
|
2
|
Cheng SH, Zhang HY, Zhu MY, Zhou LM, Yi GH, He XW, Wu JY, Sui JL, Wu H, Yan SJ, Zhang YX, Lv CZ. Observations of linear aggregation behavior in rotifers (Brachionus calyciflorus). PLoS One 2021; 16:e0256387. [PMID: 34411194 PMCID: PMC8376037 DOI: 10.1371/journal.pone.0256387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 08/06/2021] [Indexed: 11/18/2022] Open
Abstract
Linear aggregation is present in some animals, such as the coordinated movement of ants and the migration of caterpillars and spinylobsters, but none has been reported on rotifers. The rotifers were collected and clone cultured in the laboratory at 25 ± 1°C, under natural light (light intensity ~130 lx, L:D = 14:10). The culture medium(pH = 7.3) was formulated as described by Suga et al., and rotifers were fed on the micro algae Scenedesmus obliquus grown in HB-4 medium to the exponential growth stage. When density was high (150 individuals ml-1), the behavior of rotifers was observed using a stereo microscope (Motic ES-18TZLED). In this paper, linear aggregation in Brachionus calyciflorus was found for the first time, and experiments were carried out to verify the correlation between linear aggregation and culture density of B. calyciflorus. With the increase of density, the number of aggregations increase, the number of individuals in the aggregation increased, and the maintenance time of the aggregation was also increased. Therefore, we speculate that the formation of aggregates is related to density and may be a behavioral signal of density increase, which may transmit information between density increase and formation of dormant eggs.
Collapse
Affiliation(s)
- Shuang-Huai Cheng
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
- * E-mail: (SC); (SY); (YZ); (CL)
| | - Hai-Ying Zhang
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
| | - Ming-Yue Zhu
- Department of Basic Medicine and Life Sciences, Hainan Medical University, Haikou, Hainan, China
| | - Li Min Zhou
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
| | - Guo-Hui Yi
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
| | - Xiao-Wen He
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
| | - Jin-Yan Wu
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
| | - Jin-Lei Sui
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
| | - Hua Wu
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
| | - Shi-Jiao Yan
- Research Unit of Island Emergency Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou, Hainan, China
- School of Public Health, Hainan Medical University, Haikou, Hainan, China
- * E-mail: (SC); (SY); (YZ); (CL)
| | - Yun-Xia Zhang
- Public Rsearch Lab, Hainan Medical University, Haikou, Hainan, China
- Research Unit of Island Emergency Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou, Hainan, China
- * E-mail: (SC); (SY); (YZ); (CL)
| | - Chuan-Zhu Lv
- Research Unit of Island Emergency Medicine, Chinese Academy of Medical Sciences (No. 2019RU013), Hainan Medical University, Haikou, Hainan, China
- School of Public Health, Hainan Medical University, Haikou, Hainan, China
- Key Laboratory of Emergency and Trauma of Ministry of Education, Hainan Medical University, Haikou, Hainan, China
- Department of Emergency, Hainan Clinical Research Center for Acute and Critical Diseases, The Second Affiliated Hospital of Hainan Medical University, Haikou, Hainan, China
- Emergency and Trauma College, Hainan Medical University, Haikou, Hainan, China
- * E-mail: (SC); (SY); (YZ); (CL)
| |
Collapse
|
3
|
Tian LX, Tang X, Zhu JY, Luo L, Ma XY, Cheng SW, Zhang W, Tang WQ, Ma W, Yang X, Lv CZ, Liang HP. Correction to: Cytochrome P450 1A1 enhances inflammatory responses and impedes phagocytosis of bacteria in macrophages during sepsis. Cell Commun Signal 2020; 18:74. [PMID: 32423412 PMCID: PMC7236199 DOI: 10.1186/s12964-020-00597-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- Li-Xing Tian
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Xin Tang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Jun-Yu Zhu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Li Luo
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Xiao-Yuan Ma
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Shao-Wen Cheng
- Trauma Center, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Wei Zhang
- Emergency and Trauma College of Hainan Medical University, Haikou, China
| | - Wan-Qi Tang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Wei Ma
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Xue Yang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Chuan-Zhu Lv
- Trauma Center, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Hua-Ping Liang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China.
| |
Collapse
|
4
|
Tian LX, Tang X, Zhu JY, Luo L, Ma XY, Cheng SW, Zhang W, Tang WQ, Ma W, Yang X, Lv CZ, Liang HP. Cytochrome P450 1A1 enhances inflammatory responses and impedes phagocytosis of bacteria in macrophages during sepsis. Cell Commun Signal 2020; 18:70. [PMID: 32366266 PMCID: PMC7199371 DOI: 10.1186/s12964-020-0523-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 01/29/2020] [Indexed: 01/28/2023] Open
Abstract
Abstract The hydroxylase cytochrome P450 1A1 (CYP1A1) is regulated by the inflammation-limiting aryl hydrocarbon receptor (AhR), but CYP1A1 immune functions remain unclear. We observed CYP1A1 overexpression in peritoneal macrophages (PMs) isolated from mice following LPS or heat-killed Escherichia. coli (E. coli) challenge. CYP1A1 overexpression augmented TNF-α and IL-6 production in RAW264.7 cells (RAW) by enhancing JNK/AP-1 signalling. CYP1A1 overexpression also promoted 12S-hydroxy-5Z,8Z,10E,14Z-eicosatetraenoic acid (12(S)-HETE) production in activated RAW, while a 12(S)-HETE antibody attenuated and 12(S)-HETE alone induced inflammatory responses. Macrophages harbouring hydroxylase-deficient CYP1A1 demonstrated reduced 12(S)-HETE generation and LPS-induced TNF-α/IL-6 secretion. CYP1A1 overexpression also impaired phagocytosis of bacteria via decreasing the expression of scavenger receptor A (SR-A) in PMs. Mice injected with CYP1A1-overexpressing PMs were more susceptible to CLP- or E. coli-induced mortality and bacteria invading, while Rhapontigenin, a selective CYP1A1 inhibitor, improved survival and bacteria clearance of mice in sepsis. CYP1A1 and 12(S)-HETE were also elevated in monocytes and plasma of septic patients and positively correlated with SOFA scores. Macrophage CYP1A1 disruption could be a promising strategy for treating sepsis. Video abstract
Graphical abstract ![]()
Collapse
Affiliation(s)
- Li-Xing Tian
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Xin Tang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Jun-Yu Zhu
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Li Luo
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Xiao-Yuan Ma
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Shao-Wen Cheng
- Trauma Center, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Wei Zhang
- Emergency and Trauma College of Hainan Medical University, Haikou, China
| | - Wan-Qi Tang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Wei Ma
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Xue Yang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China
| | - Chuan-Zhu Lv
- Trauma Center, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Hua-Ping Liang
- State Key Laboratory of Trauma, Burns and Combined Injury, Department of Wound Infection and Drug, Daping Hospital, Army Medical University, Yuzhong District, Chongqing, China.
| |
Collapse
|
5
|
Lv CZ, Zhang H, Chen S, Liu XR, Tian GG, Yan SJ. Consensus statement on layout and delivery of automatic external defibrillator in China. J Acute Dis 2020. [DOI: 10.4103/2221-6189.291281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
6
|
Ye L, Mauro TM, Dang E, Wang G, Hu LZ, Yu C, Jeong S, Feingold K, Elias PM, Lv CZ, Man MQ. Topical applications of an emollient reduce circulating pro-inflammatory cytokine levels in chronically aged humans: a pilot clinical study. J Eur Acad Dermatol Venereol 2019; 33:2197-2201. [PMID: 30835878 DOI: 10.1111/jdv.15540] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 02/08/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND While increased levels of circulating inflammatory cytokines in chronologically aged humans have been linked to the development of ageing-associated chronic disorders (e.g., cardiovascular disease, type II diabetes, osteoporosis and Alzheimer's disease), approaches that reduce circulating cytokines are not yet available. In chronologically aged mice, we recently demonstrated that epidermal dysfunction largely accounts for age-associated elevations in circulating cytokine levels, and that improving epidermal function reduced circulating cytokine levels. OBJECTIVE We performed a pilot study to determine whether improving epidermal function reduces circulating pro-inflammatory cytokine levels in aged humans. METHODS Thirty-three aged humans were topically treated twice-daily for 30 days, with ≈ 3 mL of an emollient, previously shown to improve epidermal function, while untreated, aged humans and a cohort of young volunteers served as controls. Changes in epidermal function and levels of three key, age-related, plasma cytokines (IL-1β, IL-6 and TNFα) were measured at baseline and after treatment, using Luminex 200™ system. RESULTS We also found significantly higher baseline levels of IL-1β, IL-6 and TNFα in aged vs. young humans (P < 0.001), as previously reported. Topical applications of the barrier repair emollient significantly enhanced epidermal permeability barrier function (P < 0.01) and stratum corneum hydration (P < 0.05). In parallel, circulating levels of IL-1β and IL-6 normalized, while TNFα levels declined substantially. CONCLUSION The results of this preliminary study suggest that a larger clinical trial should be performed to confirm whether improving epidermal function also can reduce circulating pro-inflammatory cytokine levels in aged humans, while also possibly attenuating the downstream development of chronic inflammatory disorders in the aged humans.
Collapse
Affiliation(s)
- L Ye
- Dermatology Hospital, Southern Medical University, Guangzhou, China.,Dalian Skin Disease Hospital, Dalian, Liaoning, China
| | - T M Mauro
- Dermatology Service, Veterans Affairs Medical Center and Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
| | - E Dang
- Department of Dermatology, Xijing Hospital, 4th Military Medical University, Xi'an, China
| | - G Wang
- Department of Dermatology, Xijing Hospital, 4th Military Medical University, Xi'an, China
| | - L Z Hu
- Immunology Department, Key Laboratory of Immune Microenvironment and Disease (Ministry of State Education), Tianjin Medical University, Tianjin, China
| | - C Yu
- Department of Dermatology, Xijing Hospital, 4th Military Medical University, Xi'an, China
| | - S Jeong
- Department of Bio-Cosmetic Science, Seowon University, Cheongju, South Korea
| | - K Feingold
- Dermatology Service, Veterans Affairs Medical Center and Department of Dermatology, University of California San Francisco, San Francisco, CA, USA.,Metabolism Section, Veterans Affairs Medical Center, San Francisco, CA, USA
| | - P M Elias
- Dermatology Service, Veterans Affairs Medical Center and Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
| | - C Z Lv
- Dalian Skin Disease Hospital, Dalian, Liaoning, China
| | - M Q Man
- Dermatology Hospital, Southern Medical University, Guangzhou, China.,Dermatology Service, Veterans Affairs Medical Center and Department of Dermatology, University of California San Francisco, San Francisco, CA, USA
| |
Collapse
|
7
|
|
8
|
Wang YL, Dong PP, Liang JH, Li N, Sun CP, Tian XG, Huo XK, Zhang BJ, Ma XC, Lv CZ. Phytochemical constituents from Uncaria rhynchophylla in human carboxylesterase 2 inhibition: Kinetics and interaction mechanism merged with docking simulations. Phytomedicine 2018; 51:120-127. [PMID: 30466609 DOI: 10.1016/j.phymed.2018.10.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 09/27/2018] [Accepted: 10/09/2018] [Indexed: 05/14/2023]
Abstract
BACKGROUND Carboxylesterases (CEs) belong to the serine hydrolase family, and are in charge of hydrolyzing chemicals with carboxylic acid ester and amide functional groups via Ser-His-Glu. Uncaria rhynchophylla (Miq.) Miq. ex Havil. is a famous traditional Chinese medicine used in managing hyperpyrexia, epilepsy, preeclampsia, and hypertension in China. HYPOTHESIS/PURPOSE To discover the potential natural human carboxylesterase 2 (hCE 2) inhibitors from U. rhynchophylla. METHODS Compounds were obtained from the hooks of U. rhynchophylla by silica gel and preparative HPLC. Their structures were elucidated by using HRESIMS, 1D and 2D NMR spectra. Their inhibitory activeties and inhibition kinetics against hCE 2 were assayed by the fluorescent probe, and potential mechanisms were also investigated by molecular docking. RESULTS Twenty-three compounds, including a new phenolic acid uncariarhyine A (1), eight known triterpenoids (2-9), and ten known aromatic derivatives (10, 13-16, and 19-23), were isolated from U. rhynchophylla. Compounds 1-5, 7, 9, and 15 showed significant inhibitory activities against hCE 2 with IC50 values from 4.01 ± 0.61 µM to 18.60 ± 0.21 µM, and their inhibition kinetic analysis results revealed that compounds 1, 5, 9, and 15 were non-competitive; compounds 3 and 4 were mixed-type, and compounds 2 and 7 were uncompetitive. Molecular docking studies indicated inhibition mechanisms of compounds 1-5, 7, 9, and 15 against hCE 2. CONCLUSION Our present findings highlight potential natural hCE 2 inhibitors from U. rhynchophylla.
Collapse
Affiliation(s)
- Ya-Li Wang
- College of Pharmacy, College (Institute) of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian, China.; Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Department of Natural Products Chemistry, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Pei-Pei Dong
- College of Pharmacy, College (Institute) of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian, China
| | - Jia-Hao Liang
- College of Pharmacy, College (Institute) of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian, China
| | - Ning Li
- Key Laboratory of Structure-Based Drug Design & Discovery, Ministry of Education, Department of Natural Products Chemistry, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Cheng-Peng Sun
- College of Pharmacy, College (Institute) of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian, China..
| | - Xiang-Ge Tian
- College of Pharmacy, College (Institute) of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian, China
| | - Xiao-Kui Huo
- College of Pharmacy, College (Institute) of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian, China
| | - Bao-Jing Zhang
- College of Pharmacy, College (Institute) of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian, China
| | - Xiao-Chi Ma
- College of Pharmacy, College (Institute) of Integrative Medicine, The National & Local Joint Engineering Research Center for Drug Development of Neurodegenerative Disease, Dalian Medical University, Dalian, China
| | - Chuan-Zhu Lv
- Institute of Functional Materials and Molecular Imaging, College of Emergency and Trauma, Hainan Medical University, Haikou, China
| |
Collapse
|
9
|
Lv CZ, Chen S, Chen YQ, Cheng SW, Luo ZQ, Zhang W, Cao ZL, Wang JZ. An overview of the construction of emergency and pre-hospital first aid platform. J Acute Dis 2018. [DOI: 10.4103/2221-6189.228870] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
10
|
Yan SJ, Chen YQ, Chen J, Lv CZ. Evaluation of teaching-in-English reform in five-year clinical tropical medicine program – Case analysis of curriculum reform of clinical medicine in Hainan Medical University. Asian Pac J Trop Biomed 2017. [DOI: 10.1016/j.apjtb.2017.10.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
11
|
Zhao YZ, Zhang L, Gupta PK, Tian FR, Mao KL, Qiu KY, Yang W, Lv CZ, Lu CT. Using PG-Liposome-Based System to Enhance Puerarin Liver-Targeted Therapy for Alcohol-Induced Liver Disease. AAPS PharmSciTech 2016; 17:1376-1382. [PMID: 26753818 DOI: 10.1208/s12249-015-0427-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 09/30/2015] [Indexed: 01/30/2023] Open
Abstract
A critical issue for alcohol-induced liver disease (ALD) therapeutics is the lack of a highly efficient delivery system. In this study, a Puerarin-propylene glycol-liposome system was prepared for the purpose of targeting puerarin, an isoflavon, to the liver. Transmission electron microscope (TEM) results showed the liposomes to be spherical in shape with an average diameter of 182 nm with a polydispersity index of 0.239. The zeta potential of the particles was about -30 mV. The entrapment efficiency of puerarin was above 90%. MTT-based assay in HpeG2 cells showed no significant cytotoxicity in the presence of up to 25% concentration of the system containing 3% puerarin. In vivo performance of this system was studied in mice. Pharmacokinetics and distribution of puerarin-PG-liposome system was studied relative to puerarin solution at the same dose levels. The results show that puerarin-PG-liposome prolonged drug retention time and decreased elimination of puerarin in mice (AUC of liposome system and solution was 9.5 and 4.0 mg h L-1, respectively). Furthermore, propylene glycol (PG)-liposome system enhanced puerarin distribution into liver and spleen, while decreasing puerarin distribution in other tissues. Overall, the puerarin-PG-liposome system showed enhanced therapeutic effect in mice with ALD.
Collapse
|
12
|
Cheng SW, Lin ZQ, Wang W, Zhang W, Kou DQ, Ying XZ, Chen QY, Shen Y, Cheng XJ, Peng L, Lv CZ. Osteogenic capability of autologous rabbit adipose-derived stromal cells in repairing calvarial defects. Chin J Traumatol 2016; 14:288-92. [PMID: 22118483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE To evaluate the in vitro and in vivo osteogenic capability of adipose-derived stromal cells (ASCs). METHODS ASCs were isolated from New Zealand white rabbits and determined by alkaline phosphatase (ALP) staining, von Kossa staining and alizarin red staining. Some specific markers of osteogenic differentiation, including ALP, osteocalcin (OCN), osteopontin (OPN) were examined by reverse transcription-polymerase chain reaction (RT-PCR). In vivo, demineralized bone matrix (DBM)-ASCs composites were implanted into the rabbit calvarial defects created at each side of the longitudinal midline. After 6 weeks, histologic properties of the transplants were analyzed. RESULTS ASCs were successfully induced into osteogenesis. ALP staining, von Kossa staining and alizarin red staining showed positive results. The expressions of ALP, OCN and OPN were detected in ASCs after cultivation in osteogenic medium. Extensive new bone was observed in the defects transplanted with DBM-ASCs composites. CONCLUSION ASCs have the potential to differentiate into osteogenic lineage and DBM-ASCs constructs are a promising method for regeneration in bone defects.
Collapse
Affiliation(s)
- Shao-Wen Cheng
- Department of Orthopaedics, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou 325000
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Zhao YZ, Jin RR, Yang W, Xiang Q, Yu WZ, Lin Q, Tian FR, Mao KL, Lv CZ, Wáng YXJ, Lu CT. Using Gelatin Nanoparticle Mediated Intranasal Delivery of Neuropeptide Substance P to Enhance Neuro-Recovery in Hemiparkinsonian Rats. PLoS One 2016; 11:e0148848. [PMID: 26894626 PMCID: PMC4760767 DOI: 10.1371/journal.pone.0148848] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 01/25/2016] [Indexed: 12/14/2022] Open
Abstract
Purpose Intranasal administration of phospholipid-based gelatin nanoparticles (GNP) was prepared to investigate the neuro-recovery effects of neuropeptide Substance P (SP) on hemiparkinsonian rats. Methods The SP-loaded gelatin nanoparticles (SP-GNP) were prepared by a water-in-water emulsion method and possessed high stability, encapsulating efficiency and loading capacity. PC-12 cells were used to examine the growth enhancement of SP-GNP in vitro by MTT assays and flow cytometry (FCM). The therapeutic effects of SP-GNP on 6-hydroxydopamine (6-OHDA) induced hemiparkinsonian rats were assessed by quantifying rotational behavior and the levels of tyrosine hydroxylase (TH), phosphorylated c-Jun protein (p-c-Jun) and Caspase-3 (Cas-3) expressed in substantia nigra (SN) region of hemiparkinsonian rats. Results PC-12 cells under SP-GNP treatment showed better cell viability and lower degree of apoptosis than those under SP solution treatment. Hemiparkinsonian rats under intranasal SP-GNP administration demonstrated better behavioral improvement, higher level of TH in SN along with much lower extent of p-c-Jun and Cas-3 than those under intranasal SP solution administration and intravenous SP-GNP administration. Conclusions With the advantages of GNP and nose-to-brain pathway, SP can be effectively delivered into the damaged SN region and exhibit its neuro-recovery function through the inhibition on JNK pathway and dopaminergic neuron apoptosis.
Collapse
Affiliation(s)
- Ying-Zheng Zhao
- College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
- Hainan Medical College, Haikou, Hainan 570102, China
| | - Rong-Rong Jin
- Taizhou Traditional Chinese Medical Hospital, Taizhou, Zhejiang 318000, China
| | - Wei Yang
- College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Qi Xiang
- Biopharmaceutical R&D Center of Jinan University, Guangzhou, Guangdong 510000, China
| | - Wen-Ze Yu
- College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Qian Lin
- College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Fu-Rong Tian
- College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Kai-Li Mao
- College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Chuan-Zhu Lv
- Hainan Medical College, Haikou, Hainan 570102, China
| | - Yi-Xiáng J. Wáng
- Department of Imaging and Interventional Radiology, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SA
- * E-mail: (YXW); (CTL)
| | - Cui-Tao Lu
- College of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
- The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
- * E-mail: (YXW); (CTL)
| |
Collapse
|
14
|
Liu J, Man WY, Lv CZ, Song SP, Shi YJ, Elias PM, Man MQ. Epidermal permeability barrier recovery is delayed in vitiligo-involved sites. Skin Pharmacol Physiol 2010; 23:193-200. [PMID: 20185976 DOI: 10.1159/000288166] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Accepted: 01/07/2010] [Indexed: 01/17/2023]
Abstract
BACKGROUND/OBJECTIVES Prior studies have demonstrated that both the skin surface pH and epidermal permeability barrier function vary with skin pigmentation types. Although melanin deficiency is the main feature of vitiligo, alterations in cutaneous biophysical properties in vitiligo have not yet been well defined. In the present study, stratum corneum (SC) hydration, the skin surface pH and epidermal permeability barrier function in vitiligo were evaluated. METHODS A total of 30 volunteers with vitiligo comprising 19 males and 11 females aged 13-51 years (mean age: 27.91 +/- 2.06 years) were enrolled in this study. The skin surface pH, SC hydration, melanin/erythema index and transepidermal water loss (TEWL) were measured by respective probes connected to a Courage-Khazaka MPA5. SC integrity was determined by measuring the TEWL following each D-Squame application. The barrier recovery rate was assessed at 5 h following barrier disruption by repeated tape stripping. RESULTS In addition to SC hydration, both melanin and erythema index were significantly lower in vitiligo lesions than in contralateral, nonlesional sites, while no difference in skin surface pH between vitiligo-involved and uninvolved areas was observed. In addition, neither the basal TEWL nor SC integrity in the involved areas differed significantly from that in the uninvolved areas. However, barrier recovery in vitiligo-involved sites was significantly delayed in comparison with uninvolved sites (40.83 +/- 5.39% vs. 58.30 +/- 4.71%; t = 2.441; p < 0.02). CONCLUSION Barrier recovery following tape stripping of the SC is delayed in vitiligo. Therefore, improvement in epidermal permeability barrier function may be an important unrecognized factor to be considered in treating patients with vitiligo.
Collapse
Affiliation(s)
- J Liu
- Dalian Skin Disease Hospital, Dalian, The People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
15
|
Song SP, Elias PM, Lv CZ, Shi YJ, Guang P, Zhang XJ, Feingold KR, Man MQ. Decreased cutaneous resonance running time in cured leprosy subjects. Skin Pharmacol Physiol 2009; 22:218-24. [PMID: 19648783 DOI: 10.1159/000231527] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2009] [Accepted: 05/22/2009] [Indexed: 12/20/2022]
Abstract
BACKGROUND/OBJECTIVES Leprosy prominently involves both the skin and peripheral neural tissues and some symptoms persist after microbial cure. Because alterations in the dermis also occur in leprosy, we assessed here whether there were changes in cutaneous resonance running time (CRRT), a parameter that is influenced by collagen properties, in cured leprosy subjects. METHODS A reviscometer was used to measure the CRRT at various directions on the dorsal hand and the flexural forearms of 76 cured leprosy subjects aged 50-85 years and 68 age-matched normal subjects. RESULTS In comparison to normal subjects, CRRTs on the hands and the forearms were significantly reduced in all directions in cured leprosy, except at the 1-7, 2-8 and 3-9 o'clock directions on the forearms. CRRTs were reduced significantly at both the 4-10 and 5-11 o'clock directions on the forearm in lepromatous (73.33 +/- 4.19 at 4-10 o'clock and 67.44 +/- 2.71 at 5-11 o'clock direction) and borderline lepromatous types (77.58 +/- 5.84 at 4-10 o'clock and 79.85 +/- 6.81 at 5-11 o'clock direction) as compared with normal (143.10 +/- 7.75 at 4-10 o'clock and 125.18 +/- 8.14 at 5-11 o'clock direction). On the hand, CRRTs at all directions, except that at 4-10 o'clock direction, were also significantly reduced in lepromatous and borderline lepromatous types in comparison with normal. Significant differences in CRRT at some directions were found among the various subtypes of leprosy. CONCLUSION CRRTs were abnormal in the cured leprosy subjects as a whole, but varied with leprosy subtypes, which suggested that the extent of reduction of CRRTs correlates with the severity of immune alteration. These results suggest that CRRT measurements could be a useful approach to quantify the extent of some residual abnormalities in cured leprosy and perhaps could also be used to evaluate the efficacy of treatment.
Collapse
Affiliation(s)
- S P Song
- Dalian Skin Disease Hospital, Liaoning, China
| | | | | | | | | | | | | | | |
Collapse
|