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Yuan PQ, Lin S, Peng JY, Li YX, Liu YH, Wang P, Zhong HJ, Yang XM, Che LQ, Feng B, Batonon-Alavo DI, Mercier Y, Zhang XL, Lin Y, Xu SY, Li J, Zhuo Y, Wu D, Fang ZF. Effects of dietary methionine supplementation from different sources on growth performance and meat quality of barrows and gilts. Animal 2023; 17:100986. [PMID: 37820406 DOI: 10.1016/j.animal.2023.100986] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 08/29/2023] [Accepted: 09/07/2023] [Indexed: 10/13/2023] Open
Abstract
Methionine is indispensable for growth and meat formation in pigs. However, it is still unclear that increasing dietary sulphur-containing amino acid (SAA) levels using different methionine sources affects the growth performance and meat quality of barrows and gilts. To investigate this, 144 pigs (half barrows and half gilts) were fed the control (100% SAA, CON), DL-Methionine (125% SAA, DL-Met)-supplemented, or OH-Methionine (125% SAA, OH-Met)-supplemented diets during the 11-110 kg period. The results showed that plasma methionine levels varied among treatments during the experimental phase, with increased plasma methionine levels observed following increased SAA consumption during the 25-45 kg period. In contrast, pigs fed the DL-Met diet had lower plasma methionine levels than those fed the CON diet (95-110 kg). Additionally, gilts fed the DL-Met or OH-Met diets showed decreased drip loss in longissimus lumborum muscle (LM) compared to CON-fed gilts. OH-Met-fed gilts had higher pH45min values than those fed the CON or DL-Met diets, whereas OH-Met-fed barrows had higher L45min values than those fed the CON or DL-Met diets. Moreover, increased consumption of SAA, regardless of the methionine source, tended to decrease the shear force of the LM in pigs. In conclusion, this study indicates that increasing dietary levels of SAA (+25%) appeared to improve the meat quality of gilts by decreasing drip loss and increasing meat tenderness.
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Affiliation(s)
- P Q Yuan
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China; Key Laboratory of Agricultural Product Processing and Nutrition Health (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairsand, College of Food Science, Sichuan Agricultural University, Ya'an 625014, People's Republic of China
| | - S Lin
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China; Key Laboratory of Urban Agriculture in South China, Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, People's Republic of China
| | - J Y Peng
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Y X Li
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Y H Liu
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - P Wang
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - H J Zhong
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - X M Yang
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - L Q Che
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - B Feng
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | | | - Y Mercier
- Adisseo France S.A.S, CERN, Commentry, France
| | - X L Zhang
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Y Lin
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - S Y Xu
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - J Li
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Y Zhuo
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - D Wu
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China
| | - Z F Fang
- Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education, Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, People's Republic of China; Key Laboratory of Agricultural Product Processing and Nutrition Health (Co-construction by Ministry and Province), Ministry of Agriculture and Rural Affairsand, College of Food Science, Sichuan Agricultural University, Ya'an 625014, People's Republic of China.
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Peng JY, Dai HF, Huang WX. [A case of acute fascioliasis diagnosed using metagenomic-next generation sequencing technology]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:1089-1091. [PMID: 38016776 DOI: 10.3760/cma.j.cn501113-20220126-00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Affiliation(s)
- J Y Peng
- Department of Geriatrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - H F Dai
- Department of Infectious Diseases, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - W X Huang
- Department of Geriatrics, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Li LX, Yin LH, Gao M, Xu LN, Qi Y, Peng JY. Corrigendum to "MiR-23a-5p exacerbates intestinal ischemia-reperfusion injury by promoting oxidative stress via targeting PPAR alpha" [Biochem. Pharmacol. 180 (2020) 114194]. Biochem Pharmacol 2022; 204:115223. [PMID: 36081199 DOI: 10.1016/j.bcp.2022.115223] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- L X Li
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - L H Yin
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - M Gao
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - L N Xu
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Y Qi
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - J Y Peng
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China; Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China; National-Local Joint Engineering Research Center for Drug Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China.
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Hsu HC, Ke YL, Lai YH, Hsieh WC, Lin CH, Huang SS, Peng JY, Chen CH. Chondroitin Sulfate Enhances Proliferation and Migration via Inducing β-Catenin and Intracellular ROS as Well as Suppressing Metalloproteinases through Akt/NF-κB Pathway Inhibition in Human Chondrocytes. J Nutr Health Aging 2022; 26:307-313. [PMID: 35297475 DOI: 10.1007/s12603-022-1752-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Chondroitin sulfate (CS) is found in humans' cartilage, bone, cornea, skin, and arterial wall. It consists of the foundation substance in the extracellular matrix (ECM) of connective tissue. The oral supplement form of CS is clinically used in treating osteoarthritis (OA). METHODS Cell migration was observed by the transwell assay. The EMT, Akt/IKK/IκB pathways, TIMPs, collagen and MMPs in cell lysate were determined by Western blotting. The expression of MMP activity was determined by gelatin zymography. The production of reactive oxygen species (ROS) was determined by using a fluorescence spectrophotometer. RESULTS In the current report, we demonstrated that CS can increase the cell proliferation and migration of chon-001 chondrocytes. Treatment with CS induced the epithelial-mesenchymal transition and increased the expression of type II collagen and TIMP-1/TIMP2 and inhibited the expressions and activities of metalloproteinase-9 (MMP-9) and metalloproteinase-2 (MMP-2). The phosphorylation of Akt, IκB kinase (IKK), IκB and p65 was decreased by CS. CS treatment resulted in β-catenin production and XAV939, a β-catenin inhibitor, and inhibited the cell proliferation by CS treatment. In addition, also significantly induced intracellular ROS generation. Treatment with antioxidant propyl gallate blocked cell migration induced by CS. CONCLUSION We demonstrated that CS induced cell proliferation and migration of chondrocytes by inducing β-catenin and enhancing ROS production. Moreover, our studies demonstrated that CS can increase the activity of chondrocytes and help patients with osteoarthritis to restore cartilage function.
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Affiliation(s)
- H-C Hsu
- Ching-Hsein Chen, Professor, Department of Microbiology, Immunology and Biopharmaceuticals, College of Life Sciences, National Chiayi University, Chiayi City 60004, Taiwan, ROC. E-mail:
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Lu Z, Yao Y, Wang J, Peng JY. Dioscin ameliorates diabetes cognitive dysfunction via adjusting P2X7R/NLRP3 signal. Int Immunopharmacol 2021; 101:108314. [PMID: 34785142 DOI: 10.1016/j.intimp.2021.108314] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/12/2021] [Accepted: 10/24/2021] [Indexed: 11/19/2022]
Abstract
Dioscin presents extents of pharmacological activities on several diseases, but its effect and mechanism on diabetes cognitive dysfunction (DCD) remains unclear. Herein, we conducted a series of pharmacological evaluation assays of purinergic receptor P2X7 (P2X7R) with dioscin. We uncovered that dioscin presented a clearly protective effect on diabetes cognitive dysfunction via a methylglyoxal-treated PC12 cell model and streptozocin (STZ)-induced rat models. Additionally, it found that P2X7R and NLRP3 inflammasome signals were activated in diabetes cognitive dysfunction via in vivo and in vitro detection. Moreover, it was demonstrated that P2X7R regulated NLRP3 inflammasome signals in methylglyoxal-treated PC12 cells. Meanwhile, it was showed that dioscin-induced anti-diabetes cognitive dysfunction effect was accompanied with an inhibition of P2X7R/NLRP3 signal. A deeper mechanical study indicated that an overexpression of P2X7R further enhanced the protective effect of dioscin. Whilst, an inhibition of P2X7R abolished the protective effect of dioscin. These results suggested that dioscin protected type 2 diabetes cognitive dysfunction through, at least partially, regulating the P2X7R/NLRP3 signal pathway. Our findings further indicate the great value of dioscin on preventing type 2 diabetes cognitive dysfunction.
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Affiliation(s)
- Zhi Lu
- Institute of Integrative Medicine, Dalian Medical University, Dalian, China; College of Pharmacy, Dalian Medical University, Dalian, China; Department of Nuclear Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yiqun Yao
- Department of Thyroid and Breast Surgery, the First Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Jinhong Wang
- Department of Pharmacology and Laboratory of Applied Pharmacology, College of Pharmacy, Weifang Medical University, Weifang 261053, China.
| | - J-Y Peng
- College of Pharmacy, Dalian Medical University, Dalian, China.
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Li Y, Gao M, Yin LH, Xu LN, Qi Y, Sun P, Peng JY. Dioscin ameliorates methotrexate-induced liver and kidney damages via adjusting miRNA-145-5p-mediated oxidative stress. Free Radic Biol Med 2021; 169:99-109. [PMID: 33836263 DOI: 10.1016/j.freeradbiomed.2021.03.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 03/14/2021] [Accepted: 03/25/2021] [Indexed: 12/17/2022]
Abstract
Dioscin, one natural product, has various pharmacological actions. However, its effects on methotrexate (MTX)-induced hepatorenal damages still remain unknown. In the present study, the data manifested that dioscin restored the viabilities of L-02 and NRK-52E cells, reduced ALT, AST, Cr, BUN levels, and ameliorated histopathological changes of liver and kidney. Besides, dioscin decreased ROS levels in cells, and adjusted SOD, MDA, GSH and GSH-Px levels in rats. Dioscin reduced the expression levels of miR-145-5p which directly targeted Sirt5, and then regulated the expression levels of SOD1, Nrf2, Gst, Keap1, HO-1, GCLC and NQO1. MiR-145-5p mimic in cells deteriorated ROS levels and decreased Sirt5 expression to accentuate oxidative stress by regulating the expression levels of SOD1, Nrf2, Keap1, which were all reversed by dioscin. Moreover, MTX-induced hepatorenal damage were worsened in mice by Sirt5 siRNA or miR-145-5p agomir, which were also alleviated by dioscin. Dioscin relieved MTX-induced hepatorenal damages through regulating miR-145-5p-medicated oxidative stress, which should be considered as one effective drug to treat the disorder in future.
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Affiliation(s)
- Y Li
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian, 116044, China
| | - M Gao
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian, 116044, China
| | - L-H Yin
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian, 116044, China
| | - L-N Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian, 116044, China
| | - Y Qi
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian, 116044, China
| | - Pengyuan Sun
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian, 116044, China.
| | - J-Y Peng
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian, 116044, China; Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China.
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7
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Yang Y, Yin L, Zhu M, Song S, Sun C, Han X, Xu Y, Zhao Y, Qi Y, Xu L, Peng JY. Protective effects of dioscin on vascular remodeling in pulmonary arterial hypertension via adjusting GRB2/ERK/PI3K-AKT signal. Biomed Pharmacother 2021; 133:111056. [PMID: 33378960 DOI: 10.1016/j.biopha.2020.111056] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 11/05/2020] [Accepted: 11/19/2020] [Indexed: 12/20/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive and lethal cardiopulmonary. Pulmonary vascular remodeling (PVR) caused by excessive proliferation and apoptosis resistance of pulmonary artery smooth muscle cells (PASMCs) is the chief pathological feature of PAH. Dioscin is a natural product that possesses multiple pharmacological activities, but its effect on PAH remains unclear. In this study, effect of dioscin on vascular remodeling in PAH was assessed in hypoxia-induced PASMCs, hypoxia-induced and monocrotaline (MCT)-induced rats. Western blot, Real-time PCR and siRNA transfection tests were applied to evaluate the possible mechanisms of dioscin. In vitro experiments, results showed dioscin markedly inhibited the proliferation and migration, and promoted apoptosis of hypoxic PASMCs. In vivo, dioscin significantly decreased the right ventricular systolic pressure (RVSP) and right ventricular hypertrophy index (RVHI), and improved pulmonary vascular stenosis in rats induced by hypoxia or MCT. Molecular mechanism studies showed that dioscin significantly reduced the expression of growth factor receptor-bound protein 2 (GRB2). Subsequently, dioscin reduced the expressions of Ras, Cyclin D1, CDK4, c-Fos, PCNA and p-ERK to inhibit proliferation and migration of PASMCs, inhibited p-PI3K and p-AKT levels and increased Bax/Bcl2 ratio to promote cell apoptosis. GRB2 siRNA transfection in PASMCs further confirmed that the inhibitory action of dioscin in PAH was evoked by adjusting GRB2/ERK/PI3K-AKT signal. Taken together, our study indicated that dioscin attenuates PAH through adjusting GRB2/ERK/PI3K-AKT signal to inhibit PASMCs proliferation and migration, and promote apoptosis, and dioscin may be developed as a therapeutic strategy for treating PAH in the future.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Diosgenin/analogs & derivatives
- Diosgenin/pharmacology
- Disease Models, Animal
- Extracellular Signal-Regulated MAP Kinases/metabolism
- GRB2 Adaptor Protein/genetics
- GRB2 Adaptor Protein/metabolism
- Male
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/enzymology
- Myocytes, Smooth Muscle/pathology
- Phosphatidylinositol 3-Kinase/metabolism
- Phosphorylation
- Proto-Oncogene Proteins c-akt/metabolism
- Pulmonary Arterial Hypertension/drug therapy
- Pulmonary Arterial Hypertension/enzymology
- Pulmonary Arterial Hypertension/pathology
- Pulmonary Artery/drug effects
- Pulmonary Artery/enzymology
- Pulmonary Artery/pathology
- Rats, Sprague-Dawley
- Signal Transduction
- Vascular Remodeling/drug effects
- Rats
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Affiliation(s)
- Yueyue Yang
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lianhong Yin
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Manning Zhu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Shasha Song
- College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China
| | - Changjie Sun
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Xu Han
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Youwei Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yanyan Zhao
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Yan Qi
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Lina Xu
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing 100081, China.
| | - J-Y Peng
- College of Pharmacy, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China; Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian 116044, China.
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Li LX, Yin LH, Gao M, Xu LN, Qi Y, Peng JY. MiR-23a-5p exacerbates intestinal ischemia-reperfusion injury by promoting oxidative stress via targeting PPAR alpha. Biochem Pharmacol 2020; 180:114194. [PMID: 32800851 DOI: 10.1016/j.bcp.2020.114194] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/21/2020] [Accepted: 08/10/2020] [Indexed: 01/01/2023]
Abstract
MiR-23a-5p is involved in the occurrence and development of some serious diseases, but its effects on intestinal ischemia-reperfusion (II/R) injury is unclear. In this research, the hypoxia/reoxygenation (H/R) model on IEC-6 cells and II/R model in mice were used. The data showed that the ROS level in model group was significantly increased compared with control group. The level of intestinal MPO was increased and serum SOD was decreased in mice compared with sham group. Moreover, the expression levels of miR-23a-5p in model groups were obviously increased in vitro and in vivo, while the expression levels of PPARα, FOXO3α, PGC-1α, Nrf2, CAT, NQO1, HO-1 and SOD2 were significantly decreased. The double luciferase reporter gene assay showed that there was binding site between miR-23a-5p and PPARα. When miR-23a-5p was inhibited or PPARα gene was overexpressed, H/R-caused cell damage was alleviated and ROS level was decreased compared with NC group. PPARα expression level was increased, accompanied by the increased levels of FOXO3α, PGC-1α, Nrf2, CAT, NQO1, HO-1 and SOD2. After enhancing miR-23a-5p expression or silencing PPARα gene, H/R-caused cell damage was further aggravated compared with NC group, and ROS level was increased associated with the decreased levels of FOXO3α, PGC-1α, Nrf2, CAT, NQO1, HO-1 and SOD2. Our study demonstrated that miR-23a-5p exacerbated II/R injury by promoting oxidative stress via targeting PPARα, which should be considered as one new drug target to treat II/R injury.
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Affiliation(s)
- L X Li
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - L-H Yin
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - M Gao
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - L-N Xu
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Y Qi
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - J-Y Peng
- Department of Pharmaceutical Analysis, Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China; Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China; National-Local Joint Engineering Research Center for Drug Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China.
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Xu LN, Yin LH, Jin Y, Qi Y, Han X, Xu YW, Liu KX, Zhao YY, Peng JY. Effect and possible mechanisms of dioscin on ameliorating metabolic glycolipid metabolic disorder in type-2-diabetes. Phytomedicine 2020; 67:153139. [PMID: 31881477 DOI: 10.1016/j.phymed.2019.153139] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [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: 04/22/2019] [Revised: 11/05/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Our previous study revealed that microRNA-125a-5p plays a crucial role in regulating hepatic glycolipid metabolism by targeting STAT3 in type 2 diabetes mellitus (T2DM). Dioscin, a major active ingredient in Dioscoreae nipponicae rhizomes, displays various pharmacological activities, but its role in T2DM has not been reported. PURPOSE The aim of this study was to investigate the effect of dioscin on T2DM and elucidate its potential mechanism. METHODS The effect of dioscin on glycolipid metabolic disorder in insulin-induced HepG2 cells, palmitic acid-induced AML12 cells, high-fat diet- and streptozotocin- induced T2DM rats, and spontaneous T2DM KK-Ay mice were evaluated. Then, the possible mechanisms of dioscin were comprehensively evaluated. RESULTS Dioscin markedly alleviated the dysregulation of glycolipid metabolism in T2DM by reducing hyperglycemia and hyperlipidemia, improving insulin resistance, increasing hepatic glycogen content, and attenuating lipid accumulation. When the mechanism was investigated, dioscin was found to markedly elevate miR-125a-5p level and decrease STAT3 expression. Consequently, dioscin increased phosphorylation levels of STAT3, PI3K, AKT, GSK-3β, and FoxO1 and decreased gene levels of PEPCK, G6Pase, SREBP-1c, FAS, ACC, and SCD1, leading to an increase in glycogen synthesis and a decrease in gluconeogenesis and lipogenesis. The effects of dioscin on regulating miR-125a-5p/STAT3 pathway were verified by miR-125a-5p overexpression and STAT3 overexpression. CONCLUSIONS Dioscin showed potent anti-T2DM activity by improving the inhibitory effect of miR-125a-5p on STAT3 signaling to alleviate glycolipid metabolic disorder of T2DM.
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Affiliation(s)
- L-N Xu
- Department of Pharmaceutical Analysis of Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - L-H Yin
- Department of Pharmaceutical Analysis of Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Y Jin
- Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China
| | - Y Qi
- Department of Pharmaceutical Analysis of Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - X Han
- Department of Pharmaceutical Analysis of Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - Y-W Xu
- Department of Pharmaceutical Analysis of Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - K-X Liu
- Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China
| | - Y-Y Zhao
- Department of Pharmaceutical Analysis of Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China
| | - J-Y Peng
- Department of Pharmaceutical Analysis of Dalian Medical University, Western 9 Lvshunnan Road, Dalian 116044, China; Key Laboratory for Basic and Applied Research on Pharmacodynamic Substances of Traditional Chinese Medicine of Liaoning Province, Dalian Medical University, Dalian, China; National-Local Joint Engineering Research Center for Drug Development (R&D) of Neurodegenerative Diseases, Dalian Medical University, Dalian, China.
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Peng JY, Zheng J, He JM, Jiang Y, Yao D, Chen X. [Diagnostic and epidemiological features of the first two HIV-2 indigenous infections in Hunan province]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:1077-1081. [PMID: 30180431 DOI: 10.3760/cma.j.issn.0254-6450.2018.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the diagnostic and epidemiological features of the first two HIV-2 indigenous cases in Hunan province. Methods: Blood samples from two individuals with "HIV antibody indeterminate" and HIV-2 specific band showed by HIV-1/2 western blotting method, were repeatedly collected and detected under HIV 1+2 strip immunoassay and PCR, in Changsha city, Hunan province, through March to November, 2017. An epidemiological survey was carried out at the same time. Results: Our findings showed that the two cases were sex partners, without histories of sexual contact with foreigners and the source of infection was unknown. Results from the HIV 1+2 antibody confirmation test showed that they were "HIV-2 antibody positive" . Through amplifying and sequencing the gag area of HIV-2 and BLAST, the similarity of HIV-2 strains presented as 98%. The results also showed that there were HIV-2 specific fragments in the two cases. Conclusion: HIV-2 indigenous cases had never been reported in China. These cases had brought new challenge on prevention, diagnosis and treatment of HIV/AIDS in China.
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Affiliation(s)
- J Y Peng
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - J Zheng
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - J M He
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - Y Jiang
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - D Yao
- Changsha Center for Disease Control and Prevention, Changsha 410004, China
| | - X Chen
- Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
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11
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Peng JY, Chang CY, Kao CF, Chang YC, Hsueh CS, Jeng CR, Cheng IC, Pang VF, Tsai PS, Chang HW. Different intestinal tropism of the G2b Taiwan porcine epidemic diarrhea virus-Pintung 52 strain in conventional 7-day-old piglets. Vet J 2018; 237:69-75. [PMID: 30089548 DOI: 10.1016/j.tvjl.2018.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 05/28/2018] [Accepted: 06/04/2018] [Indexed: 01/28/2023]
Abstract
The group 2b (G2b) porcine epidemic diarrhea virus (PEDV) that emerged in 2013 has since caused devastating diseases and economic loss. The full-length genome of the G2b Taiwan PEDV-Pintung 52 (PEDV-PT) strain and its intestinal tropism by evaluating the pathological changes in the original PEDV-PT infected field piglet and orally inoculation of either 10, 103, or 105 50% tissue culture infective dose/mL (TCID50/mL) of the plaque-purified PEDV-PT-Passage 5 (P5) in 7-day-old conventional piglets were analyzed. Phylogenetic analysis of the full-length genome indicated that the G2b Taiwan PEDV-PT strain was closely related to the North American G2b PEDV strains. Some pathological features of the G2b Taiwan PEDV-PT infection, including the absence of lesions and antigen signal in the crypt epithelial cells of the jejunum and ileum and in the villus enterocytes of the duodenum and colon, were different from those of infections by the North American G2b PEDV strains. This difference in the intestinal tropism of the G2b Taiwan PEDV-PT strain highlights the importance of studying the pathogenicities of different PEDV variants. Moreover, similar distributions of PEDV antigens and lesions in the G2b Taiwan PEDV-PT infected field piglet and its plaque-purified isolate, PEDV-PT-P5, inoculated piglets indicating that the plaque-purified PEDV-PT-P5 viral stock could facilitate the preclinical evaluation of vaccines and other interventions aimed at preventing the G2b PEDV infection.
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Affiliation(s)
- J-Y Peng
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - C-Y Chang
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - C-F Kao
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Y-C Chang
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - C-S Hsueh
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - C-R Jeng
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan; School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - I-C Cheng
- School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - V F Pang
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan; School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - P-S Tsai
- School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - H-W Chang
- Graduate Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan; School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Rd., Taipei 10617, Taiwan.
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12
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Zhang JJ, Duan JR, Zhou YF, Peng JY, Fang DA. Genetic diversity of mitochondrial control region (D-Loop) polymorphisms in Coilia ectenes taihuensis inhabiting Taihu Lake, China. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019457. [PMID: 28362986 DOI: 10.4238/gmr16019457] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Coilia ectenes is a commercially important fishery species in China. C. ectenes taihuensis is an endemic and dominant species found in Taihu Lake of China. When compared with C. ectenes, C. ectenes taihuensis lacks anadromous behavior, and can independently grow and reproduce in Taihu Lake. In this study, the mitochondrial DNA control region (D-loop) sequences were employed to investigate the genetic diversity and population structure of C. ectenes taihuensis. Sixty-eight individuals collected from 4 localities in Taihu Lake were examined. Results indicated that in the 887-bp D-loop region, seventy-seven (8.68%) sites were variant, contributing to 53 distinct haplotypes. Although the population haplotype diversity (Hd = 0.971 to 1.000) was generally high, the nucleotide diversity (π = 0.616 to 0.731%) was relatively low among the 4 populations. Additionally, the genetic distances ranged from 0.62 to 0.74% within the populations and from 0.67 to 0.74% between the populations. The neighbor-joining tree indicated that a distinct distribution of phylogenetic structure existed among haplotypes. Analysis of molecular variance and FST statistics suggested that a divergence existed among populations in 4 localities, indicating that gene communication might have occurred among those populations. Furthermore, neutral tests and analysis of mismatch distribution reflected that C. ectenes taihuensis might have undergone a population expansion during the evolution process. Our study showed the population genetic diversity and structure of C. ectenes taihuensis. Results from this study might be helpful in the development and protection of fishery resource within the localities in Taihu Lake in future.
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Affiliation(s)
- J J Zhang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - J R Duan
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - Y F Zhou
- Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
| | - J Y Peng
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - D A Fang
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China .,Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China
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13
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Peng JY, Gao KX, Xin HY, Han P, Zhu GQ, Cao BY. Molecular cloning, expression analysis, and function of decorin in goat ovarian granulosa cells. Domest Anim Endocrinol 2016; 57:108-16. [PMID: 27565237 DOI: 10.1016/j.domaniend.2016.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Revised: 05/11/2016] [Accepted: 05/18/2016] [Indexed: 01/13/2023]
Abstract
Decorin (DCN), a component of the extracellular matrix (ECM), participates in ECM assembly and influences cell proliferation and apoptosis in many mammalian tissues and cells. However, expression and function of DCN in the ovary remain unclear. This study cloned the full-length cDNA of goat DCN obtained from the ovary of an adult goat. Sequence analysis revealed that the putative DCN protein shared a highly conserved amino acid sequence with known mammalian homologs. The tissue distribution of DCN mRNA expression was evaluated by real-time PCR, and the results showed that DCN was widely expressed in the tissues of adult goat. Immunohistochemistry results suggested that DCN protein existed in the granulosa cells and oocytes from all types of follicles and theca cells of antral follicles. Moreover, hCG-induced DCN mRNA expression was significantly reduced by the inhibitors of protein kinase A, PI3K, or p38 kinase (P < 0.05), which are key mediators involved in hCG-induced DCN expression. Overexpression of DCN significantly increased apoptosis and blocked cell cycle progression in cultured granulosa cells (P < 0.05). Western blot analysis also showed that overexpression of DCN upregulated the expression levels of p21 protein (P < 0.05), whereas no effects were observed on the expression of Bax and Bcl-2 and on Bcl-2/Bax ratio (P > 0.05). These findings suggested that DCN regulates the apoptosis and cell cycle of granulosa cells.
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Affiliation(s)
- J Y Peng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, P.R. China, 712100
| | - K X Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, P.R. China, 712100
| | - H Y Xin
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, P.R. China, 712100
| | - P Han
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, P.R. China, 712100
| | - G Q Zhu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, P.R. China, 712100; Department of Animal Engineering, Xuzhou Bioengineering Technical College, Xuzhou, Jiangsu, P.R. China, 221006
| | - B Y Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, P.R. China, 712100.
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14
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Peng JY, An XP, Fang F, Gao KX, Xin HY, Han P, Bao LJ, Ma HD, Cao BY. MicroRNA-10b suppresses goat granulosa cell proliferation by targeting brain-derived neurotropic factor. Domest Anim Endocrinol 2016; 54:60-7. [PMID: 26513157 DOI: 10.1016/j.domaniend.2015.09.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 09/21/2015] [Accepted: 09/21/2015] [Indexed: 10/22/2022]
Abstract
Brain-derived neurotropic factor (BDNF) and its high-affinity receptor, tyrosine kinase receptor B, have been assumed to be involved in female reproduction and have recently shown to play an essential role in follicle activation and oocyte maturation. In this study, we analyzed the expression of miR-10b and BDNF in the ovary and discovered that the expression of miR-10b was higher in monotocous goat ovaries than in polytocous goat ovaries, whereas the expression pattern of BDNF in ovary was opposite. Moreover, human chorionic gonadotropin induced rapid and transient expression of BDNF messenger RNA and protein. In contrast, human chorionic gonadotropin upregulated miR-10b expression in a time-dependent manner. The BDNF gene was identified as a direct target of miR-10b using a dual-luciferase reporter assay. Transfection of granulosa cells with miR-10b decreased BDNF messenger RNA and protein levels. MiR-10b overexpression inhibited cell proliferation, whereas BDNF promoted cell proliferation. However, a combined treatment with miR-10b and BDNF promoted cell proliferation, indicating that the reintroduction of BDNF reversed the suppressive effect of miR-10b. These results demonstrate that miR-10b downregulates BDNF expression in granulosa cells by directly targeting the 3' untranslated regions and plays an important role in inhibiting granulosa cell proliferation by targeting BDNF.
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Affiliation(s)
- J Y Peng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - X P An
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - F Fang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - K X Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - H Y Xin
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - P Han
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - L J Bao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - H D Ma
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - B Y Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China.
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15
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Peng JY, Han P, Xin HY, Ji SY, Gao KX, An XP, Cao BY. Molecular characterization and hormonal regulation of tissue inhibitor of metalloproteinase 1 in goat ovarian granulosa cells. Domest Anim Endocrinol 2015; 52:1-10. [PMID: 25700266 DOI: 10.1016/j.domaniend.2015.01.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 01/10/2015] [Accepted: 01/12/2015] [Indexed: 01/01/2023]
Abstract
Tissue inhibitor of metalloproteinase 1 (TIMP1) belongs to a group of endogenous inhibitors that control the activity of matrix metalloproteinases and other metalloproteinases. TIMP1 is ubiquitously expressed and implicated in many physiological and pathologic processes. In this study, the full-length complementary DNA of goat (Capra hircus) Timp1 was cloned from adult goat ovary for the first time to better understand the regulatory role of TIMP1. The putative TIMP1 protein shared a high amino acid sequence identity with other species. Real-time polymerase chain reaction results showed that Timp1 was widely expressed in adult goat tissues, and messenger RNA expression was higher in the ovary than in other tissues; meanwhile, increasing expression of Timp1 was also discovered during the process of follicle growth and corpus luteum. We then investigated Timp1 expression patterns in different types of ovarian follicular cells from goats. In small or large antral follicles, Timp1 expression was higher (P < 0.05) in theca cells than in granulosa cells, cumulus cells, and oocytes. Increasing expression of Timp1 in theca and granulosa cells was observed as the variation of the follicle size. Immunohistochemical analyses further revealed the presence of the TIMP1 proteins in follicles at all antral stages of development. The most intense staining for TIMP1 was observed in the theca cells and granulosa cells of large antral follicles and corpus luteum. Timp1 was highly (P < 0.05) induced in granulosa cells in vitro after treatment with the luteinizing hormone agonist, human chorionic gonadotropin. Treatments with forskolin, phorbol 12-myristate 13-acetate, or phorbol 12-myristate 13-acetate + forskolin could also stimulate Timp1 messenger RNA expression. The effects of human chorionic gonadotropin were reduced (P < 0.05) by the inhibitors of protein kinase A, protein kinase C, MAPK kinase, or p38 kinase, indicating that Timp1 expression could be adjusted by luteinizing hormone-initiated activation of these signaling mediators. Our results suggested that TIMP1 may be involved in regulating ovarian follicle development and ovulation.
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Affiliation(s)
- J Y Peng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - P Han
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - H Y Xin
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - S Y Ji
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - K X Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - X P An
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China
| | - B Y Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P.R. China.
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16
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Liu HY, Yang MM, Cui YH, Ma T, Liu XQ, Bai L, Xiao WP, Zhao HB, Peng JY, Hu XB, Cao BY. Transcriptional activity of an ovarian-specific promoter from rat in dairy goat granulosa cells. Genet Mol Res 2013; 12:127-35. [PMID: 23408398 DOI: 10.4238/2013.january.24.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Ovarian-specific promoter 1 (OSP-1) is a retrovirus-like element isolated from the complementary DNA library of rat that has been thought to be specifically expressed in ovary. To exploit this promoter in dairy goat ovary granulosa cells (GCs), OSP-1 from rat was used to construct the reporter vector pOSP-1-EGFP, in which egfp coding for enhanced green fluorescent protein (EGFP) was used as a reporter to examine the activity of OSP-1 in GCs. EGFP was successfully expressed in dairy goat GCs transfected with pOSP-1-EGFP. Reverse transcriptase-polymerase chain reaction analysis confirmed the tissue-specific transcription of EGFP messenger RNA in dairy goat GCs transfected with pOSP-1-EGFP. We concluded that OSP-1 promoter from rat can specifically drive foreign gene expression in dairy goat GCs. Thus, we obtained a tissue-specific regulation element and provided a potential tool for the research of regulation and development of the ovary in dairy goats.
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Affiliation(s)
- H-Y Liu
- Department of Animal Science and Technology, Northwest A&F University, Yangling, China
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17
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An XP, Hou JX, Li G, Peng JY, Liu XQ, Liu HY, Xiao WP, Wang JG, Song YX, Cao BY. Analysis of Differentially Expressed Genes in Ovaries of Polytocous versus Monotocous Dairy Goats Using Suppressive Subtractive Hybridization. Reprod Domest Anim 2011; 47:498-503. [DOI: 10.1111/j.1439-0531.2011.01910.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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18
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Wang XN, Han X, Xu LN, Yin LH, Xu YW, Qi Y, Peng JY. Enhancement of apoptosis of human hepatocellular carcinoma SMMC-7721 cells through synergy of berberine and evodiamine. Phytomedicine 2008; 15:1062-1068. [PMID: 18579357 DOI: 10.1016/j.phymed.2008.05.002] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2008] [Revised: 01/25/2008] [Accepted: 05/05/2008] [Indexed: 05/26/2023]
Abstract
Berberine and evodiamine, two kinds of alkaloids, have been reported to show many activities. In the present paper, inhibitory activities of the two compounds and their mixtures on human hepatocellular carcinoma SMMC-7721 cells were investigated, and the inhibitory rates, apoptosis, cell cycle distribution and tumor necrosis factor-alpha (TNF-alpha) were all tested and described. The results indicate that the mixtures of the two compounds showed the highest inhibition effect (50.00%) as compared with berberine and evodiamine used individually (20.24% and 16.33%, respectively) over 48 h. Through fluorescence microscope and flow cytometry (FCM) analysis, the cell apoptosis and cell cycle distribution of SMMC-7721 induced by the synergy of the two compounds was made evident. Furthermore, the TNF-alpha value in the mixture treated group was much higher (p<0.05) than in the other two groups. Thus, the combined use of berberine and evodiamine could significantly enhance the apoptosis of SMMC-7721 cells, which will be useful to further anti-cancer therapy and research.
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Affiliation(s)
- X-N Wang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
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19
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Peng JY. Village midwives deliver. IDRC Rep 2002; 6:8. [PMID: 12335042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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20
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Peng JY, Wu YF, Han WN. [Clinical efficacy of burning mouth syndrome treated by livial]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:157-8. [PMID: 12536654] [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] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To observe the clinical efficacy of livial on postmenopause women with burning mouth syndrome. METHODS Fifty six postmenopause women with burning mouth syndrome were randomly divided into two groups, 26 patients were treated with livial as the treatment group, 30 patients were treated with oryzanol and vitamin E as the control. To evaluate the effect, all the patients were observed in 3-6 months after therapy. RESULTS The result showed that the total effective rate of the treatment group was 84.62% after 3 months, 88.46% after 6 months, and significantly higher than that in the control(P < 0.005). CONCLUSION It is indicated that livial is safer and more effective than nylestriol in treatment with burning mouth syndrome.
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Affiliation(s)
- J Y Peng
- Department of Stomatology, Xiangya Hospital, Central South University, Changsha 410008, China
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21
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Chen CC, Yeh CC, Chen CH, Yu MY, Liu HL, Wu JJ, Chen KH, Chen LC, Peng JY, Chen YF. Catalytic growth and characterization of gallium nitride nanowires. J Am Chem Soc 2001; 123:2791-8. [PMID: 11456965 DOI: 10.1021/ja0040518] [Citation(s) in RCA: 463] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The preparation of high-purity and -quality gallium nitride nanowires is accomplished by a catalytic growth using gallium and ammonium. A series of catalysts and different reaction parameters were applied to systematically optimize and control the vapor-liquid-solid (VLS) growth of the nanowires. The resulting nanowires show predominantly wurtzite phase; they were up to several micrometers in length, typically with diameters of 10-50 nm. A minimum nanowire diameter of 6 nm has been achieved. Temperature dependence of photoluminescence spectra of the nanowires revealed that the emission mainly comes from wurtzite GaN with little contribution from the cubic phase. Moreover, the thermal quenching of photoluminescence was much reduced in the GaN nanowires. The Raman spectra showed five first-order phonon modes. The frequencies of these peaks were close to those of the bulk GaN, but the modes were significantly broadened, which is indicative of the phonon confinement effects associated with the nanoscale dimensions of the system. Additional Raman modes, not observed in the bulk GaN, were found in the nanowires. The field emission study showing notable emission current with low turn-on field suggests potential of the GaN nanowires in field emission applications. This work opens a wide route toward detailed studies of the fundamental properties and potential applications of semiconductor nanowires.
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Affiliation(s)
- C C Chen
- Department of Chemistry, National Taiwan Normal University, 88 s. 4 Tingchow Rd., Taipei 116, Taiwan, ROC.
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22
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Luo CF, Peng JY, Su HB. [Clinical study of oral mucosal diseases caused by the unhealthy prosthesis]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:93-4. [PMID: 12536632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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23
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Que GY, Peng JY. [Oral submucous fibrosis complicated with lichen planus disease]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:200, inside back cover. [PMID: 12212224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Abstract
Isogenes are highly homologous to each other and are often difficult to ascertain, as has been the case with metallothionein, a metal-binding protein rich in cysteines. Conventional separation of metallothionein isoforms relied on ion exchange chromatography of the proteins, or screening for the sequences from gene libraries. In this study, a combination of RT-PCR and partial protein sequencing is used in the identification of metallothionein isogenes expressed in porcine liver. By this approach, we have identified expressed coding sequences which constitute 10 new isogenes. Of the four known groups of metallothioneins (MT), phylogenetic analyses place these pig isogenes in the MT-1 group, except two which are identified as being closely related to MT-2, and none in groups 3 and 4. The isogenes are thus namedpMT-1a to -1g, andpMT-2a and -2b. While each of the isogene sequences is unique, two isogenes,pMT-1e1 andpMT-1e2, share an identical amino acid sequence, differing only in specific codons. Two others,pMT-1b andpMT-1g, have a cysteine substituted by arginine, the first such sequence ever detected in MT.pMT-2a andpMT-2b are closely aligned with the MT-2 group of vertebrates, in spite of the absence of a characteristic acidic amino acid at position 10 or 11, common in other mammalian metallothioneins.
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Affiliation(s)
- M C Huang
- Department of Life Science, National Tsing Hua University, Hsinchu 30034, ROC Taiwan.
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25
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Liu HC, Yao SQ, Peng JY. [A clinical study of autologous hematopoietic stem cells transplantation in 41 patients with leukemia and other malignant diseases]. Zhonghua Nei Ke Za Zhi 1993; 32:461-3. [PMID: 7903925] [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] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
41 patients (35 with leukemia, 4 lymphoma, 1 myeloma and 1 neuroblastoma) were treated with autologous hematopoietic stem cells transplantation. 8 patients were treated with autologous bone marrow transplant without purging (ABMT) 15 with autologous bone marrow transplant and purging (pABMT) and 18 with autologous blood hematopoietic stem cells transplant (ABHSCT). The mean hematopoietic reconstitution time was 60, 53, and 29.5 days respectively and the mean GM-CFU recovery time was 37, 44, and 30.5 days respectively in these three groups. The infection complication rates were 37.5%, 26.6% and 16.6% and the relapse rates were 37.5%, 30% and 18.7% respectively in the three groups. The results indicated that the ABHSCT had an earlier hematopoietic reconstitution time, a lesser infection complication rate and a lower relapse rate. Comparing with conventional chemotherapy, all the three transplant groups had an obviously longer disease-free survival time and a better curative effect.
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Affiliation(s)
- H C Liu
- PLA General Hospital Beijing
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Lyznik LA, Peng JY, Hodges TK. Simplified procedure for transient transformation of plant protoplasts using polyethylene glycol treatment. Biotechniques 1991; 10:294-300. [PMID: 2064765] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
A modification of the polyethylene glycol-mediated transformation procedure which eliminates the manual polyethylene glycol dilution step is presented. A transformation mixture of protoplasts, DNA and polyethylene glycol was plated directly onto agarose blocks after incubation. The procedure was simple and fast, thereby suitable for screening the gene activity of large numbers of plasmid constructions. It has been tested for both maize and rice protoplasts.
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Affiliation(s)
- L A Lyznik
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907
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Kishi K, Peng JY, Kakuta S, Murakami K, Kuroda M, Yokota S, Hayakawa S, Kuge T, Asayama T. Migration of bipolar subependymal cells, precursors of the granule cells of the rat olfactory bulb, with reference to the arrangement of the radial glial fibers. Arch Histol Cytol 1990; 53:219-26. [PMID: 2372444 DOI: 10.1679/aohc.53.219] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In order to examine the relationship between radial glial fibers and the migrating bipolar subependymal cells which are considered to be post-mitotic precursors of granule cells in the rat olfactory bulb, the arrangement of radial glial fibers along the anterior lateral and olfactory ventricles was analysed by Golgi techniques, immunohistochemical demonstration of glial fibrillary acidic protein, and electron microscopy. In rats during their first 3 weeks of life, the bipolar subependymal cells migrate along the anterior lateral and olfactory ventricles into the center of the olfactory bulb, whereas the radial glial fibers radiating from the ventricular surface are arranged rather perpendicularly to the direction of migration of bipolar cells. Hence radial glial fibers in this region are not considered to act as guides for the rostralwards migration of subependymal cells.
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Affiliation(s)
- K Kishi
- Department of Anatomy, Toho University School of Medicine, Tokyo, Japan
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Tang JA, Cui H, Xu D, Li CY, Wang JP, Meng ZH, Peng JY, Yuan QX, Zhang D, Zhang ZK. [The distribution, characteristics and effects of ir-BNP in central and peripheral tissues in rat]. Sheng Li Xue Bao 1989; 41:215-22. [PMID: 2781306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The present study first investigated the distribution, biochemical characteristics, receptor binding and biological effects of immunoreactive brain natriuretic peptide (ir-BNP), in the central nervous system and some peripheral tissues in rats, using highly specific radioimmunoassay, radioreceptor assay and immunohistochemical method. The results suggest that BNP may be a novel neurotransmitter or circulatory hormone, which is widely distributed in various tissues and involved in the regulation of water electrolyte balance and cardiovascular activity.
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Wang JP, Li ZP, Xie XZ, Tang CS, Peng JY, Tang JA. [Distribution of substance K in the rat heart and its cardiovascular effects]. Sheng Li Xue Bao 1989; 41:264-71. [PMID: 2551044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The present work was to investigate the distribution of Substance K (SK) in the rat heart and its cardiovascular effects. The content of SK-like immunoreactive material (SKLI), determined by using specific radioimmunoassay, was higher in the atrium (19.9 +/- 3.5 pmol/g tissue) than in the ventricle (4.1 +/- 0.8 pmol/g tissue). SKLI in the heart existed in the nerves fibers and its molecular form was identical with synthetic SK. There were high affinity binding sites of SK on the cardiohybricyte CP 8401: KD = 0.161 nmol/L, Bmax = 8.08 pmol/L. SK stimulated the release of ANF from the cardiohybricytes and from the isolated rat atria. Furthermore, SK injected intravenously induced a hypotensive effect in rats, and decreased left ventricle end systolic pressure (LVESP), +/- LVdp/dtmax, as well as slightly increased heart rate (HR). In isolated Langendorff perfusion heart of rat, SK increased HR, LVdp/dtmax, left ventricle peak systolic pressure (LVPSP) and perfusion pressure (PP). These effects of SK were inhibited by a tachykinin receptor antagonist, (D-Pro2, D-Trp7.9)-SP. These findings suggest that SK exist in the heart and might be able to bind with its specific binding sites on the cardiocytes, thus inducing the release of ANF from the atrium and regulating cardiovascular functions.
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Liau CS, Chen MF, Chen WJ, Lee CM, Peng JY, Lee YT. Relationship between coronary artery size and ventricular hypertrophy. Taiwan Yi Xue Hui Za Zhi 1989; 88:169-72. [PMID: 2527965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The relationship between coronary blood flow and ventricular hypertrophy has been studied in animal models. But, this relationship in the human body is scarcely evaluated. In this study we measured coronary arterial sizes by coronary arteriograms and correlated them with ventricular hypertrophy. Patients who underwent cardiac catheterization and coronary arteriography and showed no significant coronary arterial lesions were included in this study. There were 131 patients, 75 men and 56 women, with a mean age of 53 +/- 10 years (S.D.). After evaluation with electrocardiograms, echocardiograms and left ventriculograms these patients were divided into 4 groups: (1) the non-hypertrophy (NVH) group, 50 cases; (2) the left ventricular hypertrophy (LVH) group, 38 cases; (3) the right ventricular hypertrophy (RVH) group, 23 cases; and (4) the biventricular hypertrophy (BVH) group, 20 cases. The proximal portion of the 3 major coronary arteries and the left main stem were measured from coronary arteriograms with the catheter tip as a size reference. The results showed that the left main stem was larger than the 3 major coronary arteries in the NVH, LVH and BVH groups. But in the RVH group, the left main stem was not significantly larger than the right coronary artery. In all 4 groups the left circumflex coronary artery was the smallest while the left anterior descending coronary artery and the right coronary artery were similar in size. Patients with LVH showed dilatation of all 3 left coronary measurements (left main stem, left anterior descending coronary artery and left circumflex coronary artery) as compared with the NVH patients and the RVH patients.(ABSTRACT TRUNCATED AT 250 WORDS)
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An SZ, Peng JY, Shao ZH, Xie CW, Zhang D, Zhang ZK, Tang J. A novel hormone candidate. Rat atrium cross-reactive with antibody against pre-proANF. Chin Med J (Engl) 1988; 101:159-64. [PMID: 2970372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Peng JY, Wang HZ. [Experimental study of the blood supply of the mandibular ramus using radionuclides]. Zhonghua Kou Qiang Yi Xue Za Zhi 1987; 22:19-22, 62-3. [PMID: 3040346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Zhou S, Zheng XZ, Peng JY, Yu Y, Cheng LY. Subtotal gastrectomy in dogs under acupuncture anesthesia and related changes in the noradrenergic system. J TRADIT CHIN MED 1983; 3:251-8. [PMID: 6143859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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34
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Zhang XZ, Yu Y, Chou LW, Peng JY, Cui SY, Cheng LY, Chen YZ, Zhou S. [Variation of sympathetic activity and prostaglandin E level under acupuncture anesthesia (author's transl)]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 1980; 2:259-62. [PMID: 6458377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Abstract
The training and utilization of traditional birth attendants (TBAs) in maternal and child health and family planning programs in Indonesia, the Philippines, Thailand and Malaysia are discussed. Special efforts to organize and train TBAs for family planning in Malaysia are examined in detail. Import factors for successful utilization of TBAs include: (a) definite assignment of functions and tasks, (b) organization of good operational steps and (c) implementation of good supervisory activities.
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Peng JY. A field study of Depo-Provera: its use as a contraceptive method by women in a rural town in West Malaysia from February 1968 to December 1969. Med J Malaysia 1973; 27:299-305. [PMID: 4270790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Peng JY, Laily N, Bakar A, Bin Marzuki A. Village midwives in Malaysia. Stud Fam Plann 1972; 3:25-8. [PMID: 4656053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Corsa L, Peng JY, Takeshita JY, Kleinman G. Evaluating publicly supported family planning services in metropolitan Detroit. Fam Plann Perspect 1971; 3:25-8. [PMID: 5098784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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