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Zhao ZX, Shang MY, Long C, Yao XJ, Gao XB, Guo Y, Sheng XH, Wang XG, Xing K, Xiao LF, Qi XL. α-Linolenic acid-regulated testosterone biosynthesis via activation of the JNK-SF-1 signaling pathway in primary rooster Leydig cells. Theriogenology 2023; 209:170-177. [PMID: 37393747 DOI: 10.1016/j.theriogenology.2023.06.030] [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: 01/18/2023] [Revised: 05/25/2023] [Accepted: 06/22/2023] [Indexed: 07/04/2023]
Abstract
As a functional fatty acid, α-linolenic acid (ALA) is essential in promoting animal testosterone biosynthesis. This study investigated the effects of ALA on testosterone biosynthesis and the possible mechanism underlying the signaling pathway in primary Leydig cells of the rooster. METHODS Primary rooster Leydig cells were treated with ALA (0, 20, 40, or 80 μmol/L) or pretreated with a p38 inhibitor (50 μmol/L), a c-Jun NH2-terminal kinase (JNK) inhibitor (20 μmol/L), or an extracellular signal-regulated kinase (ERK) inhibitor (20 μmol/L) before ALA treatment. Testosterone content in the conditioned culture medium was detected using an enzyme-linked immunosorbent assay (ELISA). The expression of steroidogenic enzymes and JNK-SF-1 signaling pathway factors was detected using real-time fluorescence quantitative PCR (qRT-PCR). RESULTS Supplementation with ALA significantly increased testosterone secretion within culture media (P < 0.05), and the optimized dose was 40 μmol/L. Compared with the control group, steroidogenic acute regulatory protein (StAR), cholesterol side-chain cleavage enzyme (P450scc), and 3β-hydroxysteroid dehydrogenase (3β-HSD) mRNA expression significantly increased (P < 0.05) in the 40 μmol/L ALA group; 17-hydroxylase/c17-20 lyase (P450c17) and p38 mRNA expressions were not significantly different in the 40 μmol/L ALA group; ERK and JNK mRNA expressions were significantly upregulated (P < 0.05) in 40 μmol/L ALA group. In the inhibitor group, testosterone levels were significantly downregulated (P < 0.05). Compared with the 40 μmol/L ALA group, StAR, P450scc, and P450c17 mRNA expressions were significantly decreased (P < 0.05), and 3β-HSD mRNA expression in the p38 inhibitor group did not change; StAR, P450scc, and 3β-HSD mRNA expressions were significantly decreased (P < 0.05), and P450c17 mRNA expression in ERK inhibitor group did not change; StAR, P450scc, 3β-HSD, and P450c17 mRNA expressions were significantly decreased (P < 0.05) in JNK inhibitor group. Additionally, the increased steroidogenic factor 1 (SF-1) gene expression levels induced by ALA were reversed when the cells were pre-incubated with JNK and ERK inhibitors. The levels in the JNK inhibitor group were significantly lower than those in the control group (P < 0.05). CONCLUSION ALA may promote testosterone biosynthesis by activating the JNK-SF-1 signaling pathway to upregulate StAR, P450scc, 3β-HSD, and P450c17 expression in primary rooster Leydig cells.
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Affiliation(s)
- Zhi-Xian Zhao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Ming-Yu Shang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China; Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Cheng Long
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Xue-Jun Yao
- Changping District Animal Disease Prevention and Control Center, Beijing, 102299, China
| | - Xiao-Bo Gao
- Changping District Animal Disease Prevention and Control Center, Beijing, 102299, China
| | - Yong Guo
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Xi-Hui Sheng
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Xiang-Guo Wang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Kai Xing
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Long-Fei Xiao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China
| | - Xiao-Long Qi
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, 102206, China.
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Shang MY, Chen YZ, Bao J, Tong YL. [Analysis of clinical and pathological features of chronic hepatitis B combined with metabolic-associated fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:126-132. [PMID: 37137826 DOI: 10.3760/cma.j.cn501113-20220701-00362] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Objective: To analyze the clinical and histopathological features of patients with chronic hepatitis B (CHB) combined with metabolic-associated fatty liver disease (MAFLD). Methods: Clinical data of 529 cases who had liver biopsies at the First Affiliated Hospital of Zhengzhou University between January 2015 and October 2021 were collected. Among them were 290 cases with CHB, 155 cases with CHB combined with MAFLD, and 84 cases with MAFLD. Three groups of patients clinical data, including general information, biochemical indicators, FibroScan indicators, viral load, and histopathology, were analyzed. A binary logistic regression analysis was used to explore the factors influencing MAFLD in patients with CHB. Results: (1) Age, male status, proportion of hypertension and diabetes, body mass index, fasting blood glucose, γ-glutamyl transpeptidase, low-density lipoprotein, cholesterol, triglycerides, uric acid, creatinine, and the controlled attenuation parameter for hepatic steatosis were higher in CHB combined with MAFLD than in CHB patient groups. In contrast, the high-density lipoprotein, HBeAg positivity rate, viral load level, and liver fibrosis grade (S stage) were lower in CHB patients, and the differences were statistically significant (P < 0.05). (2) Alanine aminotransferase, aspartate aminotransferase, γ-glutamyl transpeptidase, triglycerides, uric acid, creatinine, and the controlled attenuation parameter for hepatic steatosis in CHB combined with the MAFLD were lower than those in MAFLD patient groups, while high-density lipoprotein was higher than that of MAFLD patients, and the difference was statistically significant (P < 0.05). There was no statistically significant difference in the grade of liver inflammation and fibrosis (GS stage) between the two groups (P > 0.05). Binary multivariate logistic regression analysis showed that overweight/obesity, triglycerides, low-density lipoprotein, the controlled attenuation parameter for hepatic steatosis, and HBeAg positivity were independent influencing factors for MAFLD in CHB patients. Conclusion: Patients with CHB combined with metabolic disorders are prone to developing MAFLD, and there is a certain correlation between HBV viral factors, the degree of liver fibrosis, and the fatty degeneration of hepatocytes.
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Affiliation(s)
- M Y Shang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Z Chen
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J Bao
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y L Tong
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Meng LQ, Tang JW, Wang Y, Zhao JR, Shang MY, Zhang M, Liu SY, Qu L, Cai SQ, Li XM. Astragaloside IV synergizes with ferulic acid to inhibit renal tubulointerstitial fibrosis in rats with obstructive nephropathy. Br J Pharmacol 2011; 162:1805-18. [PMID: 21232035 PMCID: PMC3081123 DOI: 10.1111/j.1476-5381.2011.01206.x] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND AND PURPOSE The combination of Chinese herbs, Astragali Radix and Angelicae Sinensis Radix, could alleviate renal interstitial fibrosis. Astragaloside IV (AS-IV) and ferulic acid (FA) are the two major active constituents in this combination. In this study, we employed rats with unilateral ureteral obstruction to determine whether AS-IV and FA have the same renoprotective effects and investigated the mechanisms of this action. EXPERIMENTAL APPROACH Renal pathological changes were evaluated after treatment with AS-IV, FA or AS-IV + FA (AF) for 10 days. Meanwhile, the expression of transforming growth factor β1 (TGF-β1), fibronectin, α-smooth muscle actin (α-SMA), phosphorylation of c-Jun NH2-terminal kinase (p-JNK) and nitric oxide (NO) production in kidney were determined. The expressions of fibronectin, α-SMA, mitogen-activated protein kinases [JNK, extracellular signal-regulated kinases (ERK), P38] in TGF-β1-treated NRK-49F cells or interleukin-1-treated HK-2 cells after AS-IV, FA or AF were assessed. KEY RESULTS AF alleviated the infiltration of mononuclear cells, tubular atrophy and interstitial fibrosis; reduced the expression of fibronectin, α-SMA, TGF-β1 and p-JNK; and dramatically increased the production of NO in obstructed kidneys. Neither AS-IV nor FA alone improved renal damage, but both increased NO production. AF inhibited α-SMA and fibronectin expression in NRK-49F or HK-2 cells. Furthermore, AF significantly inhibited IL-1β-induced JNK phosphorylation, without affecting ERK or P38 phosphorylation. Neither AS-IV nor FA alone had any effect on the cells. CONCLUSIONS AND IMPLICATIONS AS-IV synergizes with FA to alleviate renal tubulointerstitial fibrosis; this was associated with inhibition of tubular epithelial–mesenchymal transdifferentiation (EMT) and fibroblast activation, as well as an increase in NO production in the kidney.
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Affiliation(s)
- L Q Meng
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
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Abstract
Up to now, the studies in the world have demonstrated that CT-guided percutaneous neurolytic celiac plexus block (PNCPB) is an invaluable therapeutic modality in the treatment of refractory abdominal pain caused by cancer. Its efficacy of pain relief varied in reported studies. The main technical considerations which would affect the analgesic effects on abdominal pain included the patients' cooperation, needle entry approaches, combined use of blocking approaches, localization of the target area, dosage of the blocker, and so on. A success of PNCPB depends greatly on close cooperation with patients. The patient should be educated about the purpose and steps of the procedure, and trained of breathing in and breathing hold. The needle entry can be divided into the posterior approach and the anterior approach. The former one is the most commonly used in clinical practice, but the latter one is rarely used except in the cases that the posterior approach becomes technically difficult. Bilateral multiple blocking of celiac plexus and splanchnic nerves is often required to achieve optimal analgesia. The needle entry site, insertion course, and depth should be preselected and simulated on CT monitor prior to the procedure in order to ensure an accurate and safe celiac plexus block. The magnitude of analgesic effect is closely related to the degree of degeneration and necrosis of the celiac plexus. Maximally filling with blocker in the retropancreatic space is an indication of sufficient blocking. We also provided an overview of indications and contraindications, preoperative preparations, complications and its treatment of PNCPB.
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Affiliation(s)
- P J Wang
- Department of Radiology, Tongji Hospital Affiliated to Tongji University, Shanghai 200065, China.
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Zhang CY, Wang X, Su T, Ma CM, Wen YJ, Shang MY, Li XM, Liu GX, Cai SQ. New aristolochic acid, aristololactam and renal cytotoxic constituents from the stem and leaves of Aristolochia contorta. Pharmazie 2005; 60:785-8. [PMID: 16259129] [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: 05/05/2023]
Abstract
Two novel phenanthrene derivatives, aristololactam IVa (1) and 9-hydroxy aristolochic acid I (2) were isolated from the stem and leaves of Anstolochia contorta Bunge, together with 17 known compounds (3-19). The structures of these compounds were determined by spectroscopic analysis. The phenanthrenes obtained were tested for cytotoxicity against renal proximal tubular epithelial cell line (HK-2). Aristololactam IVa and 7-methoxy aristololactam IV were found to have strong cytotoxic activity against HK-2 cells with a potency similar to or even stronger than those of aristolochic acid I and aristololactam I.
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Affiliation(s)
- C Y Zhang
- Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University, Beijing, China
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Dou HS, Zeng SX, Wang YH, Shang MY. [Studies on method for the determination of kaerophyllin in Bupleurum smithii wolff Wolff var. parvifolium]. Zhongguo Zhong Yao Za Zhi 2000; 25:488-9. [PMID: 12515213] [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 establish a quantitative method for the determination of kaerophyllin in Chinese medicine Bupleurum smithii ver. parvifolium. METHOD Kaerophyllin was determined by HPLC, the mobile phase consisted of methanol-water(70:30), the flow rate was 1 ml.min-1, the eluate was monitored with UV detector at 328 nm. RESULT The average recovery was 97.1% with RSD = 2.15 (n = 5). CONCLUSION The result was precise and stable. This method was sensitive and its repeatability was excellent. This method may serve determination of kaerophyllin in B. smithii var. parvifolium.
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Affiliation(s)
- H S Dou
- School of Pharmaceutical Sciencn, West China University of Medical Sciences, Chengdu 610041, Sichuan, China
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Shang MY, Xu GJ, Xu LS, Li P. [Herbalogical study of Chinese drug guijiu and xiaoyelian]. Zhongguo Zhong Yao Za Zhi 1994; 19:451-3, 510. [PMID: 7980855] [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: 01/28/2023]
Abstract
Through a critical study of ancient Chinese herbals, it is concluded that the botanical origin of Guijiu should be Dysosma versipellis or D. pleiantha instead of Sinopodophyllum emodi, and that Xiaoyelian was originated from the latter. In Chinese Pharmacopoeia and many other books, the botanical origin of Xiaoyelian was erroneously referred to as Podophyllum emodi.
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Affiliation(s)
- M Y Shang
- China Pharmaceutical University, Nanjing
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Shang MY. [Studies on pulverized Corter moutan radicis]. Zhong Yao Tong Bao 1982; 7:27-8. [PMID: 6216977] [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: 01/19/2023]
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