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Wang YH, Yang XY, Wan LZ, Ren HX, Qu L, Guo HD, Dong LL, Lu X, Ren PF. Influence of the casing layer on the specific volatile compounds and microorganisms by Agaricus bisporus. Front Microbiol 2023; 14:1154903. [PMID: 37266010 PMCID: PMC10229858 DOI: 10.3389/fmicb.2023.1154903] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/27/2023] [Indexed: 06/03/2023] Open
Abstract
One of the major variables affecting yield of the mushroom Agaricus bisporus is the casing layer, which directly affects the productivity and mass. Here, volatile organic compounds were extracted by headspace solid-phase microextraction and high-throughput sequencing was used to analyze the microbial community diversity. The relationship between mushroom yield at different cropping stages and the contents of volatile organic compounds and microorganisms in three different casing layers: peat, peat + soil and soil were systematically evaluated. The result shows that Benzaldehyde and (E)-2-octenal which stimulate yield, obviously increased as mushrooms grew, while 3-octanone, which inhibits yield, decreased over time in all three casing layers. However, there was not a strong correlation between the concentration of volatile compounds and yield. In addition, more than 3,000 bacterial operational taxonomic units (OTUs) by performing high throughput sequencing of the microbes were obtained in the three casing layers. Interestingly, the microbial community compositions were very similar between the three casing layers at a later cropping stage, but the community richness varied significantly in different casing layers and at different cropping stages. At the phylum level, the communities had similar structures but were quantitively very different, and this was even more obvious at the genus level. Principal component analysis revealed significant alterations in microbial community structure in different casing layers. Sphingomonas, Dongia and Achromobacter were the dominant genera at cropping stage 1, and the stage 3 were abundant in Saccharibacteria_norank, Pseudomonas, Flavobacterium and Brevundimonas, which was positively correlated with yield, while the abundance of Pseudomonas at stage 1 and Lactococcus and Bacillus at stage 3 was negatively correlated with yield. These results provide a guide for the development and agricultural application of microbial agents for yield improvement in the production of A. bisporus.
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Affiliation(s)
- Yong-Hui Wang
- Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture, Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xiao-Ying Yang
- College of Food Science and Technology, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Lu-Zhang Wan
- Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture, Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Hai-Xia Ren
- Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture, Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Ling Qu
- Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture, Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Hui-Dong Guo
- Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture, Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Li-Li Dong
- Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture, Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Xiao Lu
- Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture, Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
| | - Peng-Fei Ren
- Key Laboratory of Wastes Matrix Utilization, Ministry of Agriculture, Institute of Agricultural Resource and Environment, Shandong Academy of Agricultural Sciences, Jinan, China
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Yuan F, Ren H, Tan W, Wang Y, Luo H. Effect of phosphodiesterase-4 inhibitor rolipram on colonic hypermotility in water avoidance stress rat model. Neurogastroenterol Motil 2022; 34:e14317. [PMID: 35037375 PMCID: PMC9286810 DOI: 10.1111/nmo.14317] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 11/01/2021] [Accepted: 12/20/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Phosphodiesterase (PDE) inhibition has been reported to play a role in regulating gut motility, but the evidence is insufficient, and the mechanism remains unknown. The aim of this study was to investigate the possible role of phosphodiesterase-4 (PDE4) inhibitor rolipram in water avoidance stress-induced colonic hypermotility. METHODS A rat model of irritable bowel syndrome (IBS) with diarrhea (IBS-D) was established by water avoidance stress (WAS). Intestinal motility was assessed by fecal pellets expulsion per hour. The cyclic adenosine monophosphate (cAMP) and nitric oxide (NO) level in colon tissue were detected using ELISA assay and the Griess test, respectively. Western blotting was performed to assess the protein level of PDE, PKA/p-CREB, and neuronal nitric oxide synthase (nNOS) in the colon. To determine the role of rolipram in gut motility, the rats of the WAS + Rolipram and Rolipram group were injected with rolipram intraperitoneally. The colonic contractile activity was recorded with a RM6240 multichannel physiological signal system. KEY RESULTS WAS-induced gastrointestinal hypermotility and increased defecation in rats. After repeated stress, protein levels of PDE4 in the colon were promoted while PKA/p-CREB and nNOS were highly decreased. cAMP content in colon tissue did not change significantly. However, NO content decreased after WAS, and rolipram partly enhanced NO in WAS-exposed rats. In addition, intraperitoneal injection of rolipram partly inhibited the colonic motility in vivo. Meanwhile, we observed rolipram inhibited the contraction of colonic smooth muscle strips, and this inhibitory effect was abolished by Nω-Nitro-L-arginine (L-NNA), a nitric oxide synthase (NOS) inhibitor, tetrodotoxin (TTX), a blocker of neuronal voltage-dependent Na+ channels, Rp-Adenosine 3',5'-cyclic monophosphorothioate triethylammonium salt hydrate (Rp-cAMPS), an antagonist of cAMP. CONCLUSIONS AND INFERENCES Rolipram could relieve stress-induced gastrointestinal hypermotility. This effect may be partly through the cAMP-PKA-p-CREB pathway and NO pathway.
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Affiliation(s)
- FangTing Yuan
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - HaiXia Ren
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Wei Tan
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - Ying Wang
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina,Key Laboratory of Hubei Province for Digestive System DiseasesRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
| | - HeSheng Luo
- Department of GastroenterologyRenmin Hospital of Wuhan UniversityWuhanHubei ProvinceChina
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He ZM, Liu KT, Ren HX, Shen QW. [Analysis of lung cancer screening through low-dose spiral computed tomography among petroleum company staffs in Sichuan-Chongqing Area in 2020]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:196-200. [PMID: 35439861 DOI: 10.3760/cma.j.cn121094-20210222-00098] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To provide scientific evidence for early lung cancer screening, to analyze the incidence of pulmonary nodules among petroleum company staffs in Sichuan-Chongqing Area. Methods: In January 2021 , 6002 petroleum company staffs in Sichuan-Chongqing Area which scanned by low-dose spiral computed tomography (LDCT) of chest in medical examination center in 2020 were retrospectively collected as objects. Their imaging and clinical data were collected. χ(2) test was used to analyze the differences in the detection rates of lung nodules and suspected lung cancer nodules among workers in petroleum company staffs of different genders, ages and types of work. Results: Among the 6002 objects, 3853 (64.2%) were male and 2149 (35.8%) were female, with an average age of (47.25±12.13) years old. A total of 431 cases (7.2%) of pulmonary nodules and 57 cases (0.9%) of suspected lung cancer nodules were detected. 45 cases were followed up with surgical treatment, and 41 cases (91.1%) of lung cancer were diagnosed by postoperative pathology. There were significant differences in the detection rates of pulmonary nodules and suspected lung cancer nodules between different age groups (χ(2)=51.23, 18.81 , P<0.001). The detection rates of pulmonary nodules in the age groups 51-60 years old and ≥61 years old were higher than those in the age groups≤40 years old and 41-50 years old (P<0.05). The detection rate of suspected lung cancer nodules in the age group≥ 61 years old was higher than those in the age groups≤40 years old, 41-50 years old and 51-60 years old (P< 0.05) . And the detection rate of suspected lung cancer pulmonary nodules in oil workers was higher than that of ordinary workers (P<0.05) . Among female objects, the detection rate of pulmonary nodules in oil workers was higher than that in ordinary workers (χ(2)=8.09, P=0.004) . The detection rate of pulmonary nodules in oil workers aged ≥61 years old was higher than ordinary workers (χ(2)=37.94, P<0.001) . Among male objects, the detection rate of suspected lung cancer pulmonary nodules in oil workers was higher than that in ordinary workers (χ(2)=8.42, P=0.004) . The detection rates of suspected lung cancer pulmonary nodules in oil workers aged 51-60 years old and ≥61 years old groups were higher than those of ordinary workers (χ(2)=4.70, 8.74; P=0.030, 0.003) . Conclusion: LDCT is suitable for early lung cancer screening for petroleum company staffs. During the clinical screening process, LDCT should be used as a routine physical examination item for petroleum workers older than 51 years old.
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Affiliation(s)
- Z M He
- Department of Thoracic Surgery, West China (Airport) Hospital Sichuan University, Chengdu 610200, China
| | - K T Liu
- Department of Neurology, Chengdu Seventh People's Hospital, Chengdu 610041, China
| | - H X Ren
- Department of Neurology, Chengdu Seventh People's Hospital, Chengdu 610041, China
| | - Q W Shen
- Department of Thoracic Surgery, Sichuan Gemfower Hospital, Chengdu 610041, China
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Qi Y, Xu M, Wang W, Wang YY, Liu JJ, Ren HX, Liu MM, Li RL, Li HJ. Early prediction of putamen imaging features in HIV-associated neurocognitive impairment syndrome. BMC Neurol 2021; 21:106. [PMID: 33750319 PMCID: PMC7941706 DOI: 10.1186/s12883-021-02114-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 06/19/2020] [Accepted: 02/15/2021] [Indexed: 12/21/2022] Open
Abstract
Background To explore the correlation between the volume of putamen and brain cognitive impairment in patients with HIV and to predict the feasibility of early-stage HIV brain cognitive impairment through radiomics. Method Retrospective selection of 90 patients with HIV infection, including 36 asymptomatic neurocognitive impairment (ANI) patients and 54 pre-clinical ANI patients in Beijing YouAn Hospital. All patients received comprehensive neuropsychological assessment and MRI scanning. 3D Slicer software was used to acquire volume of interest (VOI) and radiomics features. Clinical variables and volume of putamen were compared between patients with ANI and pre-clinical ANI. The Kruskal Wallis test was used to analysis multiple comparisons between groups. The relationship between cognitive scores and VOI was compared using linear regression. For radiomics, principal component analysis (PCA) was used to reduce model overfitting and calculations and then a support vector machine (SVM) was used to build a binary classification model. For model performance evaluation, we used an accuracy, sensitivity, specificity and receiver operating characteristic curve (ROC). Result There were no significant differences in clinical variables between ANI group and pre-clinical-ANI group (P>0.05). The volume of bilateral putamen was significantly different between AHI group and pre-clinical group (P<0.05), but there was only a trend in the left putamen between ANI-treatment group and pre-clinical treatment group(P = 0.063). Reduced cognitive scores in Verbal Fluency, Attention/Working Memory, Executive Functioning, memory and Speed of Information Processing were negatively correlated with the increased VOI (P<0.05), but the correlation was relatively low. In diagnosing the ANI from pre-clinical ANI, the mean area under the ROC curves (AUC) were 0.85 ± 0.22, the mean sensitivity and specificity were 63.12 ± 5.51 and 94.25% ± 3.08%. Conclusion The volumes of putamen in patients with ANI may be larger than patients with pre-clinical ANI, the change of the volume of the putamen may have a certain process; there is a relationship between putamen and cognitive impairment, but the exact mechanism is unclear. Radiomics may be a useful tool for predicting early stage HAND in patients with HIV.
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Affiliation(s)
- Yu Qi
- Department of Radiology, Beijing Youan Hospital, Capital Medical University, No.8 Xi Tou Tiao Youanmen Wai, Fengtai District, Beijing, 100069, China
| | - Man Xu
- Information and Communication Engineering Department Beijing University of Posts and Telecommunications, Beijing, China
| | - Wei Wang
- Department of Radiology, Beijing Youan Hospital, Capital Medical University, No.8 Xi Tou Tiao Youanmen Wai, Fengtai District, Beijing, 100069, China
| | - Yuan-Yuan Wang
- Department of Radiology, Beijing Second Hospital, Beijing, China
| | - Jiao-Jiao Liu
- Department of Radiology, Beijing Youan Hospital, Capital Medical University, No.8 Xi Tou Tiao Youanmen Wai, Fengtai District, Beijing, 100069, China
| | - Hai-Xia Ren
- Information and Communication Engineering Department Beijing University of Posts and Telecommunications, Beijing, China
| | - Ming-Ming Liu
- Physical Examination Center, Cang zhou Central Hospital, Cang zhou, China
| | - Rui-Li Li
- Department of Radiology, Beijing Youan Hospital, Capital Medical University, No.8 Xi Tou Tiao Youanmen Wai, Fengtai District, Beijing, 100069, China.
| | - Hong-Jun Li
- Department of Radiology, Beijing Youan Hospital, Capital Medical University, No.8 Xi Tou Tiao Youanmen Wai, Fengtai District, Beijing, 100069, China.
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Ren H, Yuan F, Tan W, Ding Y, An P, Luo H. Effect of Evodiamine on Rat Colonic Hypermotility Induced by Water Avoidance Stress and the Underlying Mechanism. Drug Des Devel Ther 2021; 15:441-452. [PMID: 33603336 PMCID: PMC7882800 DOI: 10.2147/dddt.s298954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 01/28/2021] [Indexed: 11/23/2022]
Abstract
Background and Aim EVO is a natural alkaloid that reportedly has potential value in regulating gastrointestinal motility, but this conclusion remains controversial, and the molecular mechanism is unclear. In this study, we aimed to explore the effect of short-chain fatty acids on rat colonic hypermotility induced by water avoidance stress and the underlying mechanism. Methods We constructed a hypermotile rat model by chronic water avoidance stress, and Western blot was used to detect the protein level of nNOS in colon tissue. The organ bath and multichannel physiological signal acquisition systems were used to examine the spontaneous contractions of smooth muscle strips. The whole-cell patch-clamp technique was used to investigate L-type voltage-dependent calcium and BKCa channel currents in colonic smooth muscle cells. Results EVO inhibited the spontaneous contractions of colonic smooth muscle strips in a dose-dependent manner. Moreover, EVO decreased the fecal output induced by chronic water avoidance stress. TTX did not block the inhibitory effect of EVO on spontaneous colon contractions, while L-NNA, a selective nNOS synthase inhibitor, did partially abolish this inhibitory effect. The protein expression of nNOS in the colon tissues of rats administered EVO was significantly increased compared to that in control rats. EVO reversibly inhibited the L-type calcium channel current without changing the steady-state activation or inactivation in colonic smooth muscle cells. EVO significantly inhibited the BKCa current but did not change the shape of the I-V curves. Conclusion EVO inhibits gastrointestinal motility by inhibiting L-type calcium and BKCa channels in colonic smooth muscle cells and indirectly interacting with nNOS.
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Affiliation(s)
- HaiXia Ren
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - FangTing Yuan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China.,Key Laboratory of Hubei Province for Digestive System Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - Wei Tan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - YiJuan Ding
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - Ping An
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - HeSheng Luo
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
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Yuan F, Tan W, Ren H, Yan L, Wang Y, Luo H. The Effects of Short-Chain Fatty Acids on Rat Colonic Hypermotility Induced by Water Avoidance Stress. Drug Des Devel Ther 2020; 14:4671-4684. [PMID: 33173277 PMCID: PMC7646441 DOI: 10.2147/dddt.s246619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022]
Abstract
Purpose Short-chain fatty acids (SCFAs) have been reported to play an important role in regulating gastrointestinal motility. The aim of this study is to investigate the possible role of SCFAs in water avoidance stress-induced colonic hypermotility. Methods A rat IBS model was established by water avoidance stress (WAS). Intestinal motility was assessed by fecal pellets expulsion. The fecal SCFA level was detected using gas chromatography-mass spectrometry (GC-MS). Western blotting was performed to assess the expression of SCFAs receptors. To determine the role of SCFAs in gut dysmotility, the rats of the WAS+SCFAS and SCFAs group were administrated with oral SCFAs. The colonic contractile activity was recorded with a RM6240 multichannel physiological signal system. Key Results WAS induced gastrointestinal hypermotility and increased defecation in rats. After repeated stress, the fecal SCFAs decreased significantly and the proportion of acetic acid, propionic acid, and butyric acid had changed from Control 2.6:1:1.5 to WAS 2:1:2.3. Protein levels of SCFAs receptors in the colon were promoted by WAS. In addition, oral SCFAs partly inhibited the colonic spontaneous motility both for SCFAs and WAS+SCFAs group in vivo. Meanwhile, we observed acetate had no effect on the contractile amplitudes of muscle strips, but it could slow down contractile frequency in a dose-dependent manner (1–100 mM). Propionate significantly inhibited the motor activity of colonic strips (1–30 mM). Butyrate inhibited the contractile amplitude of CM strips in a dose-dependent manner (1–30 mM), but for LM, it exhibited a stimulating effect at low concentrations of butyrate 1 mM–10 mM and was suppressed at high concentrations of 30 mM butyrate. Total SCFAs increased the contractile amplitude at low concentration (5–50 mM) and inhibited it at high concentration (50–150 mM). All SCFAs slowed down the frequency of colonic activity. Conclusion The stress-induced colonic hypermotility by WAS could be ameliorated through oral SCFA supplementation. SCFAs may have potential clinical therapeutic use in modulating gut motility.
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Affiliation(s)
- FangTing Yuan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - Wei Tan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - HaiXia Ren
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - Lin Yan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - Ying Wang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China.,Key Laboratory of Hubei Province for Digestive System Diseases, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
| | - HeSheng Luo
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, People's Republic of China
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Cui XL, Li KJ, Ren HX, Zhang YJ, Liu XD, Bu BG, Wang L. Extract of Cycas revoluta Thunb. enhances the inhibitory effect of 5-fluorouracil on gastric cancer cells through the AKT-mTOR pathway. World J Gastroenterol 2019; 25:1854-1864. [PMID: 31057299 PMCID: PMC6478614 DOI: 10.3748/wjg.v25.i15.1854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/10/2019] [Accepted: 03/16/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gastric cancer is one of the most common and deadly malignancies worldwide. Despite recent medical progress, the 5-year survival rate of gastric cancer is still unsatisfactory. 5-fluorouracil (5-Fu) is one of the first-line antineoplastic treatments for gastric cancer, as it can effectively induce cancer cell apoptosis. However, the effect of 5-Fu is limited due to drug resistance of the malignant tumor. Previous studies have reported that Sotetsuflavone from Cycas revoluta Thunb. can markedly suppress lung cancer cell proliferation by apoptosis, though its effect on gastric cancer remains unknown.
AIM To investigate the inhibitory effect of Cycas revoluta Thunb. and to determine whether it can overcome gastric cancer cell drug resistance to 5-Fu.
METHODS Cell viability was examined to determine whether the natural extract of Cycas revoluta Thunb. induced gastric cancer cell death. The half-maximal effective concentration and the half-maximal lethal concentration were calculatede. Wound-healing and transwell assays were performed to examine gastric cancer cell motility. Clonogenic assays were performed to investigate the synergistic effects of Cycas revoluta Thunb. with 5-Fu, and apoptotic bodies were detected by Hoechst staining. Western blotting was performed to examine the expression of related proteins and to investigate the molecular mechanism of Cycas revoluta Thunb.-induced cancer cell apoptosis. The expressions of proteins, including mammalian target of rapamycin (mTOR) and p-AKT, were detected in different combinations of treatments for 48 h, then analyzed by ECL detection.
RESULTS Gastric cancer cells were more sensitive to the natural extract of Cycas revoluta Thunb. compared to normal gastric epithelial cells, and the extract effectively inhibited gastric cancer cell migration and invasion. The extract improved the anti-cancer effect of 5-Fu by enhancing the chemosensitization of gastric cancer cells. Extract plus 5-Fu further reduced the expression of the drug-resistance-related proteins p-AKT and mTOR after 48 h compared to 5-Fu alone. Compared to 5-Fu treatment alone, mTOR and p-AKT expression was significantly reduced by about 50% and 75%, respectively. We also found that the natural extract of Cycas revoluta Thunb. further increased 5-Fu-induced gastric cancer cell apoptosis. Expression of apoptosis-related protein X-linked inhibitor of apoptosis protein and apoptosis inducing factor were significantly reduced and increased, respectively, in the 5-Fu-resistant gastric cancer line SGC-7901/R treated with extract plus 5-Fu, while the expression of survivin did not change.
CONCLUSION The natural extract of Cycas revoluta Thunb. effectively inhibited gastric cancer cell growth and enhanced the anti-cancer effect of 5-Fu through the AKT-mTOR pathway.
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Affiliation(s)
- Xing-Liang Cui
- Department of Gastroenterology, Affiliated Hospital of Hebei University of Engineering, Handan 056001, Hebei Province, China
| | - Ke-Ji Li
- Department of Surgery, Affiliated Hospital of Hebei University of Engineering, Handan 056001, Hebei Province, China
| | - Hai-Xia Ren
- Department of Gastroenterology, Affiliated Hospital of Hebei University of Engineering, Handan 056001, Hebei Province, China
| | - Yong-Jian Zhang
- Department of Gastroenterology, Affiliated Hospital of Hebei University of Engineering, Handan 056001, Hebei Province, China
| | - Xiao-Dong Liu
- Department of Gastroenterology, Affiliated Hospital of Hebei University of Engineering, Handan 056001, Hebei Province, China
| | - Bao-Guo Bu
- Department of Gastroenterology, Affiliated Hospital of Hebei University of Engineering, Handan 056001, Hebei Province, China
| | - Lei Wang
- Department of Pathology, Medical College of Hebei University of Engineering, Handan 056000, Hebei Province, China
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Ren HX, Tang QC, Yan L, Xia H, Luo HS. Evodiamine inhibits gastrointestinal motility via CCK and CCK1 receptor in water-avoidence stress rat model. Life Sci 2018; 209:210-216. [PMID: 30086275 DOI: 10.1016/j.lfs.2018.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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] [Received: 04/08/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 02/08/2023]
Abstract
AIM Evodiamine (EVO) has been reported to play an important role in regulating gastrointestinal motility, but the evidence is insufficient, and the mechanism remains unknown. The aim of this study is to investigate the possible role of EVO in stress-induced colonic hypermotility and the potential mechanisms via both in vivo and in vitro investigations. METHODS Male Sprague-Dawley rats were exposed to water avoidance stress (WAS) for 1 h or sham WAS daily for 10 consecutive days to construct the rat model. The colonic contractile activity was studied in an organ bath system. The serum CCK-8 level was detected using an enzyme immunoassay kit, and gastrointestinal transit was detected by intragastric administration of India ink. RESULTS WAS induced gastrointestinal hypermotility in male rats. EVO significantly inhibited the contractile activity of colonic muscle strips; this effect was not blocked by TTX and the CCK1 receptor antagonist devazepide. Chronic WAS induced a slight but nonsignificant increase in the serum CCK-8 level, while EVO elevated the serum CCK-8 level in the WAS rats in a dose-dependent manner. Exogenous CCK-8 significantly inhibited the contractile activity of the colonic muscle strips; this effect was not blocked by TTX but was completely blocked by devazepide. Both EVO and CCK-8 inhibited gastrointestinal transit, and the effect of EVO could be partially blocked by devazepide. SIGNIFICANCE EVO can reverse stress-induced gastrointestinal hypermotility. This effect may partially occur as a result of promoting the release of CCK and then activating the CCK1 receptor instead of directly activating the CCK1 receptor.
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Affiliation(s)
- H X Ren
- Department of Gastroenterology, Renmin Hospital of Wuhan University, 430060, China
| | - Q C Tang
- Department of Gastroenterology, Renmin Hospital of Wuhan University, 430060, China
| | - L Yan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, 430060, China
| | - H Xia
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Key Laboratory of Hubei Province for Digestive System Diseases, 430060, China
| | - H S Luo
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Key Laboratory of Hubei Province for Digestive System Diseases, 430060, China.
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Ren HX, Zhang FC, Luo HS, Zhang G, Liang LX. Role of mast cell-miR-490-5p in irritable bowel syndrome. World J Gastroenterol 2017; 23:93-102. [PMID: 28104984 PMCID: PMC5221290 DOI: 10.3748/wjg.v23.i1.93] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/05/2016] [Accepted: 09/14/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To determine the functional role of miR-490-5p in mast cell proliferation and apoptosis, and in the mast cell tryptase/PAR-2 signal pathway.
METHODS The 3rd generation of lentivirus vector systems containing enhanced green fluorescent protein (EGFP) (Ruisai Inc., Shanghai, China), which acts as a reporter gene was used to construct the mmu-miR-490-5p lentivirus expression vector pEGFP-antagomiR-490-5p, and the lentivirus vector pEGFP-negative was used as a negative control. The stably transfected mast cell line p815 was then constructed. GFP positive cells were successfully transfected cells. We determined the expression of miR-490-5p in p815 mast cells before and after transfection using quantitative real-time PCR (qRT-PCR). In addition, after transduction with the lentivirus vectors, the role of miR-490-5p in mast cell proliferation and apoptosis was investigated using the CCK-8 assay and flow cytometry, respectively. The mRNA levels of tryptase and PAR-2 were detected by qRT-PCR and the protein levels were detected by Western blot.
RESULTS The inhibition of miR-490-5p expression promoted apoptosis and inhibited proliferation of p815 mast cells. The mRNA levels of tryptase and PAR-2 were significantly increased after transfection compared with the control group, tryptase (P = 0.721, normal vs null; P = 0.001, siRNA vs normal; P = 0.002, siRNA vs null) and PAR-2 (P = 0.027, siRNA vs null; P = 0.353, normal vs null; P = 0.105, siRNA vs normal). The protein levels of tryptase and PAR2 were slightly higher in the siRNA group than those in the control group, but the difference was not statistically significant (P > 0.05).
CONCLUSION miR-490-5p plays a vital role in the pathogenesis of irritable bowel syndrome by affecting mast cell proliferation and apoptosis; with down-regulation of miR-490-5p, the mRNA level of mast cell tryptase and PAR-2 increased, and the protein level increased, but the difference was not statistically significant.
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Xu LY, Zhao FP, Sheng XH, Ren HX, Zhang L, Wei CH, Du LX. Optimal Design for Marker-assisted Gene Pyramiding in Cross Population. Asian-Australas J Anim Sci 2012; 25:772-84. [PMID: 25049625 PMCID: PMC4093085 DOI: 10.5713/ajas.2011.11239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 11/07/2011] [Accepted: 10/13/2011] [Indexed: 11/27/2022]
Abstract
Marker-assisted gene pyramiding aims to produce individuals with superior economic traits according to the optimal breeding scheme which involves selecting a series of favorite target alleles after cross of base populations and pyramiding them into a single genotype. Inspired by the science of evolutionary computation, we used the metaphor of hill-climbing to model the dynamic behavior of gene pyramiding. In consideration of the traditional cross program of animals along with the features of animal segregating populations, four types of cross programs and two types of selection strategies for gene pyramiding are performed from a practical perspective. Two population cross for pyramiding two genes (denoted II), three population cascading cross for pyramiding three genes(denoted III), four population symmetry (denoted IIII-S) and cascading cross for pyramiding four genes (denoted IIII-C), and various schemes (denoted cross program-A–E) are designed for each cross program given different levels of initial favorite allele frequencies, base population sizes and trait heritabilities. The process of gene pyramiding breeding for various schemes are simulated and compared based on the population hamming distance, average superior genotype frequencies and average phenotypic values. By simulation, the results show that the larger base population size and the higher the initial favorite allele frequency the higher the efficiency of gene pyramiding. Parents cross order is shown to be the most important factor in a cascading cross, but has no significant influence on the symmetric cross. The results also show that genotypic selection strategy is superior to phenotypic selection in accelerating gene pyramiding. Moreover, the method and corresponding software was used to compare different cross schemes and selection strategies.
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Affiliation(s)
- L Y Xu
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - F P Zhao
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China ; Department of Biostatistics and Bioinformatics, Tulane University, New Orleans, Louisiana 70112, USA
| | - X H Sheng
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - H X Ren
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - L Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - C H Wei
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
| | - L X Du
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, National Center for Molecular Genetics and Breeding of Animal, Beijing 100193, China
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Zhang JJ, Shu QY, Liu ZA, Ren HX, Wang LS, De Keyser E. Two EST-derived marker systems for cultivar identification in tree peony. Plant Cell Rep 2012; 31:299-310. [PMID: 21987120 DOI: 10.1007/s00299-011-1164-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2011] [Revised: 09/05/2011] [Accepted: 09/23/2011] [Indexed: 05/20/2023]
Abstract
Tree peony (Paeonia suffruticosa Andrews), a woody deciduous shrub, belongs to the section Moutan DC. in the genus of Paeonia of the Paeoniaceae family. To increase the efficiency of breeding, two EST-derived marker systems were developed based on a tree peony expressed sequence tag (EST) database. Using target region amplification polymorphism (TRAP), 19 of 39 primer pairs showed good amplification for 56 accessions with amplicons ranging from 120 to 3,000 bp long, among which 99.3% were polymorphic. In contrast, 7 of 21 primer pairs demonstrated adequate amplification with clear bands for simple sequence repeats (SSRs) developed from ESTs, and a total of 33 alleles were found in 56 accessions. The similarity matrices generated by TRAP and EST-SSR markers were compared, and the Mantel test (r = 0.57778, P = 0.0020) showed a moderate correlation between the two types of molecular markers. TRAP markers were suitable for DNA fingerprinting and EST-SSR markers were more appropriate for discriminating synonyms (the same cultivars with different names due to limited information exchanged among different geographic areas). The two sets of EST-derived markers will be used further for genetic linkage map construction and quantitative trait locus detection in tree peony.
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Affiliation(s)
- J J Zhang
- Institute of Botany, Beijing Botanical Garden, The Chinese Academy of Sciences, 20 Nanxin Cun, Xiangshan, Haidian District, Beijing, 100093, China
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Yang P, Ren H, Wei Z, Liu X, Jiang S. Orthogonal array optimization of ionic liquid based dispersive liquid-liquid microextraction for toxic anilines in foods. Sci China Chem 2011. [DOI: 10.1007/s11426-011-4403-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Abstract
This study was designed to evaluate the role of endogenous ouabain (EO) in the development of hypertension in 1ktc (one kidney, one clip) hypertensive rats. First, the EO content of the serum of 1k1c hypertensive rats and normal Sprague-Dawley (SD) rats was detected by the enzyme linked immunosorbent assay method (ELISA). Second, blood pressure changes in the 1k1c rats were recorded directly after the 1k1c rats were injected randomly with anti-ouabain antibody, normal rabbit IgG, and normal saline, respectively. The results showed that EO levels in the serum of 1k1c hypertensive rats were significantly higher than those of normal SD rats (2.25 +/-0.92 microg/l vs. 1.12 +/- 0.17 microg/l, p< 0.01), and correlated significantly with systolic blood pressure (r= 0.59, p< 0.05). Anti-ouabain antibody was able to significantly decrease the blood pressure of 1k1c hypertensive rats in a dose-dependent manner, while normal rabbit IgG or normal saline was not. These results indicate that endogenous ouabain might play an important role in the development of hypertension in 1k1c hypertensive rats.
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Affiliation(s)
- W Q Yuan
- Department of Cardiology, First Teaching Hospital, Xi'an, PR China
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14
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Wu XY, Ou KQ, Chen WY, Yan DH, Yu J, Li GR, Ren HX. [Light microscopic and electron microscopic study on the influence of microwave irradiation to rat testes upon gonadotroph cells]. Sichuan Yi Xue Yuan Xue Bao 1985; 16:199-203. [PMID: 3939268] [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: 01/08/2023]
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15
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Fang YX, Zhu LM, Song YF, Ren HX. [A morphologic study of microwave influence on male fertility. Influence of microwave irradiation on rat testes]. Sichuan Yi Xue Yuan Xue Bao 1985; 16:191-4. [PMID: 2426815] [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: 12/31/2022]
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16
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Zeng ZY, Wu XF, Liu HM, Yu J, Lu ZS, Li GR, Ren HX. [Electron microscopic study on the influence of microwave irradiation on the blood-testis barrier of the rat testis]. Sichuan Yi Xue Yuan Xue Bao 1985; 16:195-8. [PMID: 3837370] [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: 01/07/2023]
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17
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Feng CY, Hu YM, Liu Y, Kuang MS, Wang XX, Ren HX, Liu LZ, Yang Y, Deng BZ. [Effects of nitroquine on sporogenic cycle of Plasmodium cynomolgi]. Zhongguo Yao Li Xue Bao 1982; 3:273-6. [PMID: 6219546] [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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