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Cui HM, Tian JY, Yu QF, Ma JF, Bian J, Li MF. Enhancing fuel characteristics and combustion performance of cellulose-rich straws through CO 2-assisted torrefaction. Int J Biol Macromol 2024; 264:130417. [PMID: 38417744 DOI: 10.1016/j.ijbiomac.2024.130417] [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: 10/27/2023] [Revised: 01/17/2024] [Accepted: 02/22/2024] [Indexed: 03/01/2024]
Abstract
Cellulose-rich straws of corn and rice were torrefied under carbon dioxide, and the fuel characteristics and combustion performance of the obtained biochar were investigated. A high severity resulted in surface collapse, greater pore volume, elimination of oxygen, elevated calorific value, and improved hydrophobicity in biochar. Following carbon dioxide torrefaction, the cellulose content in solid biochar experienced a slight decrease when the temperature was raised to 220 °C for longer residence durations. At 300 °C, the cellulose content in the biochar was nearly eliminated, while the relative proportion of non-sugar organic matter in corn stover and rice straw increased to 87.40 % and 77.27 %, respectively. The maximum calorific values for biochar from corn and rice straws were 22.38 ± 0.03 MJ/kg and 18.72 ± 0.05 MJ/kg. The comprehensive combustion indexes of rice and corn straw samples decreased to 1.06 × 10-7 and 1.31 × 10-7 after torrefaction at 300 °C, respectively. In addition, the initial decomposition temperatures increased by 38 °C and 45 °C, while the ultimate combustion temperatures rose by 13 °C and 16 °C for corn and rice straws, respectively. These results imply an extended combustion timeframe for the torrefied samples.
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Affiliation(s)
- Hua-Min Cui
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Jing-Yu Tian
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Qiong-Fen Yu
- Yunnan Provincial Rural Energy Engineering Key Laboratory, Kunming 650500, Yunnan, China
| | - Jian-Feng Ma
- Key Lab of Bamboo and Rattan Science & Technology, International Center for Bamboo and Rattan, Beijing 100102, China
| | - Jing Bian
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Ming-Fei Li
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China; Yunnan Provincial Rural Energy Engineering Key Laboratory, Kunming 650500, Yunnan, China; Engineering Research Center of Forestry Biomass Materials and Energy, Ministry of Education, Beijing Forestry University, Beijing 100083, China.
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2
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Xu ZH, Zhang JC, Chen K, Liu X, Li XZ, Yuan M, Wang Y, Tian JY. Mechanisms of the PD-1/PD-L1 pathway in itch: From acute itch model establishment to the role in chronic itch in mouse. Eur J Pharmacol 2023; 960:176128. [PMID: 37866747 DOI: 10.1016/j.ejphar.2023.176128] [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: 01/08/2023] [Revised: 09/22/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
Programmed cell death receptor/ligand 1 (PD-1/PD-L1) blockade therapy for various cancers induces itch. However, few studies have evaluated the mechanism underlying PD-1/PD-L1 inhibitor-induced itch. This study aimed to establish and evaluate a mouse model of acute itch induced by PD-1/PD-L1 inhibitors and to explore the role of the PD-1/PD-L1 pathway in chronic itch. The intradermal injection of the PD-1/PD-L1 small molecule inhibitors, or anti-PD-1/PD-L1 antibodies in the nape of the neck in the mice elicited intense spontaneous scratches. The model was evaluated using pharmacological methods. The number of scratches was reduced by naloxone but not by antihistamines or the transient receptor potential (TRP) channel inhibitor. Moreover, the PD-1 receptor was detected in the spinal cord of the mouse models of chronic itch that exhibited acetone, diethyl ether, and water (AEW)-induced dry skin, imiquimod-induced psoriasis, and 1-fluoro-2,4-dinitrobenzene (DNFB)-induced allergic contact dermatitis. Intrathecal PD-L1 (1 μg, 4 times a week for 1 week) suppressed the activation of the microglia in the spinal dorsal horn to relieve the chronic itch that was elicited by imiquimod-induced psoriasis and DNFB-induced allergic contact dermatitis. Although the activation of the microglia in the spinal dorsal horn was not detected in the AEW-treated mice, intrathecal PD-L1 still reduced the number of scratches that were elicited by AEW. Our findings suggest that histamine receptor inhibitors or TRP channel inhibitors have limited effects on PD-1/PD-L1 inhibitor-induced itch and that spinal PD-1 is important for the spinal activation of the microglia, which may underlie chronic itch.
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Affiliation(s)
- Zhe-Hao Xu
- Department of Pharmacology, Clinical College of Anhui Medical University, Hefei, China.
| | - Jing-Cheng Zhang
- Department of Biliary and Pancreatic Surgery, Anhui Provincial Hospital Affiliated with Anhui Medical University, China
| | - Ke Chen
- Department of General Surgery, The Frist Affiliated of Anhui Medical University, China
| | - Xuan Liu
- Department of Pharmacology, Clinical College of Anhui Medical University, Hefei, China
| | - Xian-Zhi Li
- Department of Pharmacology, Clinical College of Anhui Medical University, Hefei, China
| | - Ming Yuan
- Department of Pharmacology, Clinical College of Anhui Medical University, Hefei, China
| | - Yue Wang
- Department of Pharmacology, Clinical College of Anhui Medical University, Hefei, China
| | - Jing-Yu Tian
- Department of Pharmacology, Clinical College of Anhui Medical University, Hefei, China
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3
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Tian JY, Ning G. [Manage the variability of glycosylated hemoglobin Alc to lower the risk of all-cause mortality among diabetes patients]. Zhonghua Nei Ke Za Zhi 2022; 61:367-369. [PMID: 35340181 DOI: 10.3760/cma.j.cn112138-20210622-00436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- J Y Tian
- State Key Laboratory of Medical Genomics, Department of Endocrinology and Metabolism, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - G Ning
- State Key Laboratory of Medical Genomics, Department of Endocrinology and Metabolism, Shanghai Institute of Endocrine and Metabolic Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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Tan ZF, Ding Y, Tian JY, Liu ZQ, Bi JR, Zhou DY, Song L, Chen GB. Inhibition of ultraviolet-induced sea cucumber (Stichopus japonicus) autolysis by maintaining coelomocyte intracellular calcium homeostasis. Food Chem 2021; 368:130768. [PMID: 34392120 DOI: 10.1016/j.foodchem.2021.130768] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 07/09/2021] [Accepted: 08/02/2021] [Indexed: 11/27/2022]
Abstract
Apoptosis plays a critical role in sea cucumber autolysis. To investigate the ultraviolet (UV)-induced apoptosis, sea cucumbers with and without injection of BAPTA-AM (cytosolic calcium chelator) were exposed to UV (15 W/m2) for 30 min. The results showed that UV irradiation caused several changes in sea cucumber coelomocytes, including calcium imbalance, abnormal morphology of endoplasmic reticulum, upregulation of pro-apoptotic proteins CRT, CHOP, and caspases 9 and 3, and downregulation of anti-apoptotic protein Bcl-2. A comparison between the two groups showed that injection of the calcium chelator into sea cucumbers helped maintain coelomocyte intracellular calcium homeostasis and suppressed other abnormal changes caused by ER stress, indicating apoptosis in sea cucumbers is mediated by calcium imbalance and follows the activation of the ER stress pathway. Therefore, this study broadens understanding of the apoptotic mechanism involved in sea cucumber autolysis, which is helpful in developing preservative agents for sea cucumbers.
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Affiliation(s)
- Zhi-Feng Tan
- School of Food Science and Technology, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China
| | - Yue Ding
- School of Food Science and Technology, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China
| | - Jing-Yu Tian
- School of Food Science and Technology, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China
| | - Zi-Qiang Liu
- School of Food Science and Technology, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China
| | - Jing-Ran Bi
- School of Food Science and Technology, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China; National Engineering Research Center of Seafood, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China
| | - Da-Yong Zhou
- School of Food Science and Technology, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China; National Engineering Research Center of Seafood, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China
| | - Liang Song
- School of Food Science and Technology, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China; National Engineering Research Center of Seafood, No. 1 Qinggongyuan, Ganjingzi District, Dalian 116034, PR China.
| | - Gui-Bing Chen
- Center for Excellence in Post-Harvest Technologies, North Carolina A&T State University, The North Carolina Research Campus, 500 Laureate Way, Kannapolis, NC 28081, USA.
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Yu ZQ, Tian JY, Wen J, Chen Z. Effects of Heat Stress on Expression of Heat Shock Proteins in the Small Intestine of Wenchang Chicks. Braz J Poult Sci 2021. [DOI: 10.1590/1806-9061-2020-1430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Affiliation(s)
- ZQ Yu
- Hainan Normal University, China
| | - JY Tian
- Hainan Normal University, China
| | - J Wen
- Hainan Normal University, China
| | - Z Chen
- Hainan Normal University, China
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Xiao Y, Wang P, Li RB, Tian JY, Fu ZH, Mao YG, Zhang HY. [A case of hyperlacticemia caused by linezolid in severely burned patient]. Zhonghua Shao Shang Za Zhi 2019; 35:614-616. [PMID: 31474044 DOI: 10.3760/cma.j.issn.1009-2587.2019.08.012] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
On October 3rd, 2017, one male patient, aged 27 years, was admitted to our hospital 6 hours after hydrothermal scald of torso, buttocks, and limbs. The total area of burn was about 60% total body surface area, and the depth was from deep partial-thickness burn to full-thickness burn. Immediately after admission, the patient was given symptomatic support treatments, such as anti-shock, fluid replacement, and anti-infection, etc. After being treated by debridement and xenogenic (porcine) skin grafting for 2 times, the wounds were healed well. On the 12th day of admission, linezolid was used to prevent infection according to the results of microbial culture and drug sensitivity test, since when the level of his blood lactate continued to increase. After 8 days, linezolid was discontinued and vitamin B1 was given orally for 1 week, and the level of lactic acid gradually decreased to normal in result. This case was used mainly to analyze whether linezolid could directly cause hyperlacticemia and its important mechanism, aiming at reminding clinicians of being alert to the risk of hyperlacticemia when using linezolid. If hyperlacticemia occurs, linezolid should be discontinued immediately and vitamin B1 should be taken orally to correct the high lactic acid value, and the treatment plan should be adjusted if necessary.
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Affiliation(s)
- Y Xiao
- Department of Burns, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
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Liu Y, Ma XQ, Sun XH, Dai S, Zhang JF, Li HB, Ma X, Wang JY, Dou Q, Tian JY, Jia JP. [The application of 3D reconstruction in investigating the frontal sinus drainage pathway based on computer tomography data]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:171-176. [PMID: 29775014 DOI: 10.13201/j.issn.1001-1781.2018.03.003] [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] [Received: 10/26/2017] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to explore the value of 3D reconstruction technology based on computer tomography data in understanding the frontal sinus drainage pathway. Method:Three-dimensional reconstruction of DICOM data from 100 cases of sinus CT was performed by using Mimics 19.0 software. The 3D models were used to study types, the relative locations of frontal sinus and recess cells as well as the influence of the frontal sinus drainage pathway. Result:The 3D model of frontal sinus, frontal recess cells and frontal sinus drainage pathway were reconstructed successfully. Among them, the incidence of nasal cavity was 95.5% (191/200), nasal cavity was 31.5% (63/200), nasal cavity on the frontal air room was 24.5% (49/200) supra bulla cells were 54% (108/200), supra bulla frontal cells were 14.5% (29/200), supraorbital ethmoid cells were 20.5% (41/200), and the rate of frontal septal cells were 4% (8/200). It visually demonstrated the relationship between the frontal recess and the frontal sinus drainage channel. Conclusion:The 3D reconstruction technology based on computer tomography data not only helps us to understand the anatomy of the frontal sinus, the relative position of the frontal crypt and the effect on the frontal sinus drainage channel, but also provides a new method for preoperative planning and intraoperative guidance to endoscopic frontal sinus surgery.
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Affiliation(s)
- Y Liu
- The Educational Base of the 463 Hospital of PLA, Jinzhou Medical University, Shenyang, 110042, China
| | - X Q Ma
- Department of Radiology, the 463 Hospital of PLA
| | - X H Sun
- Department of Otorhinolaryngology, the 463 Hospital of PLA
| | - S Dai
- Department of Otorhinolaryngology, the 463 Hospital of PLA
| | - J F Zhang
- Department of Radiology, the 463 Hospital of PLA
| | - H B Li
- Department of Otorhinolaryngology, the 463 Hospital of PLA
| | - X Ma
- Shenyang Orthopedic Hospital(Liaoning Osteoarthropathy Key Laboratory)
| | - J Y Wang
- Shenyang Orthopedic Hospital(Liaoning Osteoarthropathy Key Laboratory)
| | - Q Dou
- Department of Otorhinolaryngology, the 463 Hospital of PLA
| | - J Y Tian
- The Educational Base of the 463 Hospital of PLA, Jinzhou Medical University, Shenyang, 110042, China
| | - J P Jia
- Department of Otorhinolaryngology, the 463 Hospital of PLA
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8
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Wu HR, Liu CQ, Guo MF, Mei XY, Tian JY, Xu MQ. [A comparative study of the short-term efficacy and long-term efficacy of systematic lymph node dissection and elective lymph node dissection in patients with early esophageal cancer]. Zhonghua Wai Ke Za Zhi 2018; 56:706-711. [PMID: 30157578 DOI: 10.3760/cma.j.issn.0529-5815.2018.09.012] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility, safety, short-term efficacy and long-term efficacy of elective lymph node dissection in patients with early esophageal cancer. Methods: The study retrospectively evaluated 405 patients with cT1N0M0 esophageal carcinoma who received minimally invasive esophagectomy in the First Affiliated Hospital of University of Science and Technology of China between March 2007 and March 2013. Of those patients, 208 patients underwent systematic lymph node dissection (SLND) and 197 patients underwent elective lymph node dissection (ELND). The clinicopathologic factors, operational factors, postoperative complications, lymph node dissection and prognosis of patients were compared by independent sample t test, χ(2) test, or Mann-Whitney rank test. The 5-year overall survival was calculated by the Kaplan-Meier estimation method using the Log-rank test. Results: There was no significant difference in clinicopathological data between the SLND group and the ELND group. The incidence of pulmonary infection (8.2% vs. 2.9%, P=0.04) and arrhythmia (6.2% vs. 2.0%, P=0.03) of the minor postoperative complications in the SLND group were higher than the ELND group. The incidence of pulmonary infection (6.2% vs. 2.0%, P=0.03), Chylothorax (5.8% vs.1.5%, P=0.02), anastomotic or pleural hemorrhage requiring reoperation (2.9% vs.0.5%, P=0.04) of major postoperative complications in the SLND group were higher than the ELND group, the difference was statistically significant. In the perioperative data of two groups, the incidence of total postoperative complications, total pulmonary complications, operation time, intraoperative blood loss, postoperative hospitalization, postoperative thoracic drainage duration and postoperative thoracic drainage fluid volume of the SLND group were higher than the ELND group, the difference was statistically significant. The mean numbers and stations of dissected lymph node in the SLND were 30.2±4.2 and 12.1±2.7, the mean numbers and stations of dissected lymph node in the ELND were 25.7±3.8 and 8.4±3.6. The survival rates of 1, 3, 5 years of all patients were 100%, 95.9% and 82.5%, respectively. The median survival time was 87.4 months. Further analysis showed that the 1, 3 and 5 years survival rate of patients with stage Ⅰ esophageal cancer was 100%, 97.1% and 88.9%, respectively. The median survival time was 89.3 months. The 1, 3 and 5 years survival rate of patients with stage Ⅱa esophageal cancer was 100%, 93.2% and 76.8%, respectively. The median survival time was 77.2 months. There was no significant difference in survival rate between the SLND group and the ELND group in 1, 3 and 5 years. When taking a further analysis of stage Ⅰ esophageal cancer, the survival rates between 188 patients in the SLND group and 180 patients in the ELND group were no significant difference. When focus on the stage Ⅱa esophageal cancer, the 1, 3 and 5 years survival rate were higher in the SLND group than that in the ELND group (100%, 94.5%, 83.2% vs. 100%, 91.3%, 72.1%, P=0.047), the difference was statistically significant. Conclusion: ELND can be safely and effectively performed for early esophageal cancer with favorable short-term efficacy and long-term efficacy.
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Affiliation(s)
- H R Wu
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China, Hefei 230001, China
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Fan Q, Zhao DH, Yang XC, Tian JY, Cheng ZC, Liu JH. P3578Prediction factors for successful retrograde collateral traverse in chronic total occlusion percutaneous coronary intervention. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3578] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Q Fan
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - D H Zhao
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - X C Yang
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - J Y Tian
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - Z C Cheng
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - J H Liu
- Beijing Anzhen Hospital, Beijing, China People's Republic of
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Yang XC, Zhao DH, Tian JY, Cheng ZC, Fan Q, Liu JH. P885The function and mechanism of lncRNA ENSMUST00000134285 in protecting the heart from aging-related myocardial apoptosis. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p885] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- X C Yang
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - D H Zhao
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - J Y Tian
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - Z C Cheng
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - Q Fan
- Beijing Anzhen Hospital, Beijing, China People's Republic of
| | - J H Liu
- Beijing Anzhen Hospital, Beijing, China People's Republic of
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Wang GE, Li YF, Zhai YJ, Gong L, Tian JY, Hong M, Yao N, Wu YP, Kurihara H, He RR. Theacrine protects against nonalcoholic fatty liver disease by regulating acylcarnitine metabolism. Metabolism 2018; 85:227-239. [PMID: 29727630 DOI: 10.1016/j.metabol.2018.04.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 04/27/2018] [Accepted: 04/29/2018] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Acylcarnitine metabolism disorder contributes significantly to the pathogenesis of nonalcoholic fatty liver disease (NAFLD). There are, however, few ideal medications for NAFLD, which work by targeting acylcarnitine metabolism. The aim of this study was to investigate the protective effects of theacrine, a rare purine alkaloid isolated from Camellia assamica var. kucha, against acylcarnitine metabolism disorder in NAFLD. METHODS The pharmacological activities of theacrine were studied using high-fat diet (HFD)-fed ApoE-/- and C57BL/6J mice models. Oleate-treated HepG2 and L-02 cells were used to investigate the molecular mechanism of theacrine on acylcarnitine metabolism. The target of theacrine was confirmed in vitro as the blockade of sirtuin 3 (SIRT3) and protein kinase A. RESULTS Theacrine inhibits hepatic steatosis and liver inflammation and improves energy expenditure in HFD-fed mice. Theacrine ameliorates acylcarnitine metabolism disorder in HFD-fed mice and oleate-treated hepatocytes by improving fatty acid oxidation. The underlying mechanism involves theacrine's activation of the mitochondrial deacetylase SIRT3 and consequently, the increased activity of long-chain acyl coenzyme A dehydrogenase (LCAD) through deacetylation. CONCLUSION Theacrine promotes acylcarnitine metabolism in NAFLD through the SIRT3/LCAD signaling pathway. The target of theacrine's activities on NAFLD is identified as SIRT3.
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Affiliation(s)
- Guo-En Wang
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yi-Fang Li
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yu-Jia Zhai
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Lian Gong
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jing-Yu Tian
- State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou 510060, Guangdong, China
| | - Mo Hong
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Nan Yao
- Guangdong Provincial Key Laboratory of Research and Development in Traditional Chinese Medicine, Guangdong Province Engineering Technology Research Institute of Traditional Chinese Medicine, Guangzhou 510095, China
| | - Yan-Ping Wu
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Hiroshi Kurihara
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Rong-Rong He
- Guangdong Engineering Research Center of Chinese Medicine & Disease Susceptibility, Jinan University, Guangzhou 510632, China; Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy, Jinan University, Guangzhou 510632, China.
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Tian JY, Qi ZT, Wu N, Chang MX, Nie P. Complementary DNA sequences of the constant regions of T-cell antigen receptors α, β and γ in mandarin fish, Siniperca chuatsi Basilewsky, and their transcriptional changes after stimulation with Flavobacterium columnare. J Fish Dis 2014; 37:89-101. [PMID: 24330001 DOI: 10.1111/jfd.12042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 05/25/2011] [Revised: 12/14/2011] [Accepted: 01/23/2012] [Indexed: 06/03/2023]
Abstract
In this study, the constant-region genes (Cα, Cβ and Cγ) that encode the T-cell antigen receptor (TCR) α, β and γ chains were cloned from mandarin fish, Siniperca chuatsi Basilewsky, an important freshwater fish species in China. The complementary DNA sequences of Cα, Cβ and Cγ were 843, 716 and 906 base pairs (bp) in length and had a 465-, 289- and 360-bp 3' untranslated region, encoding 125, 142 and 182 amino acids, respectively. The amino-acid sequences of the constant regions of mandarin fish TCR α, β and γ chains (encoded by Cα, Cβ and Cγ, respectively) were most similar to those of their teleost counterparts, showing 60% similarity with pufferfish, 48% similarity with Atlantic salmon and 57% similarity with flounder, respectively. The phylogenetic analysis revealed that the mandarin fish Cα, Cβ and Cγ were clustered, respectively, with their vertebrate counterparts. The mandarin fish Cα, Cβ and Cγ could also be separated into four domains: immunoglobulin; connecting peptide (CP); transmembrane (TM); and cytoplasmic tail. Several conserved features in mammalian TCRs were also found in those of mandarin fish, such as a conserved cysteine residue in the CP domain of Cα, necessary for creating an interchain disulphide bond with the TCR β chain, and a conserved antigen receptor TM motif in Cα and Cβ. Meanwhile, transcripts of Cα, Cβ and Cγ were detectable in all examined organs, with a stronger signal observed in lymphoid organs. In addition, the temporal transcriptional changes for Cα and Cγ were investigated, 1, 2, 3, 4, 5, 6 and 8 weeks after stimulation with Flavobacterium columnare, in head kidney, spleen, blood, thymus, gill and intestine, using real-time polymerase chain reaction. The results demonstrated stimulation-dependent up-regulations in almost all tissues examined, which indicates that T cells may play important roles in preventing mandarin fish from bacterial invasion. In particular, apart from thymus, T cells were distributed mainly in gill and intestine, where striking up-regulation of Cγ was also observed. These results will facilitate functional studies of teleost TCRs and T cells.
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Affiliation(s)
- J Y Tian
- National Oceanographic Center, Qingdao, Shandong Province, China
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He CT, Tian JY, Liu SY, Ouyang G, Zhang JP, Chen XM. A porous coordination framework for highly sensitive and selective solid-phase microextraction of non-polar volatile organic compounds. Chem Sci 2013. [DOI: 10.1039/c2sc21181e] [Citation(s) in RCA: 166] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Tian JY, Liu JQ. Automated Sleep Staging by a Hybrid System Comprising Neural Network and Fuzzy Rule-based Reasoning. Conf Proc IEEE Eng Med Biol Soc 2012; 2005:4115-8. [PMID: 17281138 DOI: 10.1109/iembs.2005.1615368] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A hybrid system for automated EEG sleep staging is presented in this article. By combining a self-organizing feature map (SOFM) with a fuzzy reasoning-based classifier (FRBC) and utilizing both temporal and spectrum features of the EEG signal, the system provides a reliable tool for automatic EEG sleep staging. Conceptually, the system is divided into four passes: artifact detection, rough staging, stage refinement and post processing. The artifact detection module is firstly employed to exclude stage movement from other stages. Then, the SOFM with features as its inputs derived from the power spectrum divides sleep into three "extreme" stages: Wake, Light/REM and Deep stage. In stage refinement pass, the FRBC, which takes characteristic waveforms' activities as inputs, subdivides the extreme stages into the exact stages (i.e., stage 1, stage 2) defined by R&K standard. At last, in post processing pass, a stage-smoothing method that mainly utilizes the temporal context information is used to correct unexpected stage transitions, thus to improve the system's performance. The system was tested with eight whole night sleep records with an average man-machine agreement of 85.3%. Compared with the high inter-scorer disagreement, the performance is desirable.
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Affiliation(s)
- J Y Tian
- Department of Electrical Engineering, Harbin Institute of Technology, Harbin, 150001 P.R. China (phone: 0086-136-71161368; e-mail: )
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Tian JY, Chen ZL, Liang H, Li X, Wang ZZ, Li GB. Comparison of biological activated carbon (BAC) and membrane bioreactor (MBR) for pollutants removal in drinking water treatment. Water Sci Technol 2009; 60:1515-1523. [PMID: 19759454 DOI: 10.2166/wst.2009.481] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Biological activated carbon (BAC) and membrane bioreactor (MBR) were systematically compared for the drinking water treatment from slightly polluted raw water under the same hydraulic retention time (HRT) of 0.5 h. MBR exhibited excellent turbidity removal capacity due to the separation of the membrane; while only 60% of influent turbidity was intercepted by BAC. Perfect nitrification was achieved by MBR with the 89% reduction in ammonia; by contrast, BAC only eliminated a moderate amount of influent ammonia (by 54.5%). However, BAC was able to remove more dissolved organic matter (DOM, especially for organic molecules of 3,000 approximately 500 Daltons) and corresponding disinfection by-product formation potential (DBPFP) in raw water than MBR. Unfortunately, particulate organic matter (POM) was detected in the BAC effluent. On the other hand, BAC and MBR displayed essentially the same capacity for biodegradable organic matter (BOM) removal. Fractionation of DOM showed that the removal efficiencies of hydrophobic neutrals, hydrophobic acids, weakly hydrophobic acids and hydrophilic organic matter through BAC treatment were 11.7%, 8.8%, 13.9% and 4.8% higher than that through MBR; while MBR achieved 13.8% higher hydrophobic bases removal as compared with BAC.
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Affiliation(s)
- J Y Tian
- State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), Harbin Institute of Technology, No. 73 Huanghe Road, Nangang District, Harbin 150090, China.
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Chen JP, Li J, Zhao SL, Tian JY, Ye F. [Establishment of Z-HL16C cell line.]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 2006; 20:232-4. [PMID: 17086279] [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: 05/12/2023]
Abstract
BACKGROUND To establish and study the nature and the application of Z-HL16C cell line. METHODS The cell line was continuously passed, frozen stored and recovered. Its application was expanded and the cell type was identified. RESULTS The cell line had an epithelial-cell-like shape, the size appeared uniform, the cell boundary was distinct. It has been continuously passed, frozen stored and recovered for ten years. Its recovery rate was about 90%. It has been proved to be sensitive to the tested viruses which were enteroviruses (Polio, Cox, Echo), influenza viruses, parainfluenzaviruses, adenoviruses, measles virus. This cell line has been identified as a cancerization cell. CONCLUSION The cell line Z-HL16C has been stably established, it has a broad spectrum in sensitivity for culturing viruses.
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Affiliation(s)
- J P Chen
- Strand Biotech Company Limited, Guangdong Shantou 510541, China
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Guan ZZ, Miao H, Tian JY, Unger C, Nordberg A, Zhang X. Suppressed expression of nicotinic acetylcholine receptors by nanomolar beta-amyloid peptides in PC12 cells. J Neural Transm (Vienna) 2002; 108:1417-33. [PMID: 11810405 DOI: 10.1007/s007020100017] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2001] [Accepted: 08/23/2001] [Indexed: 10/27/2022]
Abstract
A line of evidence has shown that a link between the common pathological features of beta-amyloid peptide (Abeta) deposition and cholinergic degeneration observed in Alzheimer's disease (AD) may exist, however, no experimental evidence has shown that exposure to Abeta can decrease expression of nicotinic acetylcholine receptors (nAChRs), which have been shown to play roles in brain cognitive functions. Here, we report that treatment with Abeta1-40 and Abeta25-35 at nanomolar concentrations significantly decreased the [3H]epibatidine and [125I]alpha-bungarotoxin binding sites, the protein and mRNA levels of nAChR alpha3, alpha7 and beta2 subunits in PC12 cells. Abeta1-40 and Abeta25-35 at the concentrations used in the treatment study neither bound to nAChRs nor induced apoptosis, but significantly inhibited the MTT (3-(4,5-dimethylthiazol-2-yl)-2,5,diphenyl tetrazolium bromide) reduction. These data suggest that the decreased biosynthesis of nAChRs induced by Abeta may be attributable partially to perturbances of some intracellular signal transduction pathways. The results presented in this study lead to a hypothesis that Abeta can degenerate nAChRs early in the course of AD before the formation of abundant Abeta fibrils.
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Affiliation(s)
- Z Z Guan
- Division of Molecular Neuropharmacology, Department of Clinical Neuroscience, Occupational Therapy and Elderly Care Research (NEUROTEC), Karolinska Institutet, Huddinge University Hospital, Huddinge, Sweden
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Guan ZZ, Zhang X, Mousavi M, Tian JY, Unger C, Nordberg A. Reduced expression of neuronal nicotinic acetylcholine receptors during the early stages of damage by oxidative stress in PC12 cells. J Neurosci Res 2001; 66:551-8. [PMID: 11746374 DOI: 10.1002/jnr.1245] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The mechanism for a large loss of neuronal nicotinic acetylcholine receptors (nAChRs) in brains with neurodegenerative diseases remains unclear. Based on our previous results of [(3)H]epibatidine binding influenced by lipid peroxidation, we suggest that nAChR deficit in neurodegenerative diseases might be related to the neurons attacked by free radicals. To further understand how free radicals influence the expression of nAChRs, we detected [(125)I]alpha-bungarotoxin binding, nAChR subunit protein and mRNA during the early stage of damage by oxidative stress in PC12 cells in the present study. The results showed that free radical insult (FeSO(4)) within the concentration range (1 -100 microM) used in the study induced dose-dependent increases in lipid peroxidation and toxicity to PC12 cells, but did not result in apoptosis or necrosis. Significant reductions in [(125)I]alpha-bungarotoxin binding site, protein level for the alpha3 and alpha7 subunits, and mRNA level for the alpha7 subunit were observed in PC12 cells treated by FeSO(4) at the concentrations without inducing cell death compared to control. Pretreatment of cultural cells with antioxidant such as Vitamin E and reduced glutathione prevented the inhibiting effect of free radicals on [(125)I]alpha-bungarotoxin and [(3)H]epibatidine bindings. The present results further demonstrate that oxidative stress might reduce the number of [(125)I]alpha-bungarotoxin binding site and selectively suppress the expression of the nAChR subunits at protein and mRNA levels during the early stages of damage in PC12 cells.
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Affiliation(s)
- Z Z Guan
- Department of Clinical Neuroscience, Occupational Therapy and Elderly Care Research, Division of Molecular Neuropharmacology, Huddinge University Hospital, Karolinska Institutet, S-14136 Stockholm, Sweden.
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Tian JY, Sørensen ES, Butler WT, Lopez CA, Sy MS, Desai NK, Denhardt DT. Regulation of no synthesis induced by inflammatory mediators in RAW264.7 cells: collagen prevents inhibition by osteopontin. Cytokine 2000; 12:450-7. [PMID: 10857758 DOI: 10.1006/cyto.1999.0634] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Osteopontin has been shown to inhibit the induction of inducible nitric oxide synthase (iNOS, or NOS2) by lipopolysaccharide and interferon-gamma in the RAW264.7 mouse monocyte/macrophage line and in primary mouse proximal tubule epithelial cells. However, the RAW264.7 cells become refractory to the action of OPN after several subcultures or under dilute culture conditions, possibly because of changes in the composition of the extracellular matrix. We make this suggestion because if the cells are plated on a collagen type I or collagen type IV substrate the inhibitory action of OPN is completely suppressed; this is not the case on substrates consisting of laminin, fibronectin, poly-D-lysine, or poly-(2-hydroxyethylmethylacrylate). These observations imply that macrophages are sensitive to regulation by OPN only in certain physiological contexts. Both hyaluronate, which binds CD44, and rat IgGs are also able to inhibit the induction of NO synthesis by the inflammatory mediators. The similar actions of HA and OPN are consistent with the possibility that CD44 may be a receptor for OPN.
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Affiliation(s)
- J Y Tian
- Department of Cell Biology and Neuroscience, Rutgers University, Piscataway, NJ 08854, USA
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Zou ZW, Xu LN, Tian JY. [Antithrombotic and antiplatelet effects of rosmarinic acid, a water-soluble component isolated from radix Salviae miltiorrhizae (danshen)]. Yao Xue Xue Bao 1993; 28:241-5. [PMID: 8213164] [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: 01/29/2023]
Abstract
Wistar rats of both sex were used. Ros A was intravenously injected 5-10 min before blood collection or the ligation of vena cava. 1. Stasis-induced venous thrombosis: A tight ligature was applied to inferior vena cava below the left renal vein in anesthetized rats. The abdominal walls were closed and then reopened two hours later. The vena cava was clamped 2 cm below the ligature. This segment was cut to remove the thrombus. The dry weight of the thrombus was determined. 2. Platelet aggregation: Using Born's method the platelet aggregation induced by collagen or ADP was studied. 3. Blood coagulation times: Blood recalcium time (RT), kaolin partial thromboplastin time (KPTT) and prothrombin time (PT) were estimated. 4. Plasma fibrinolytic activity was observed by the determination of euglobulinolytic time (ELT). Plasma fibrinogen content was estimated based on the biuret reaction. The venous thrombosis was inhibited by 41.9% and 54.8% (P < 0.05) when Ros A was injected at the dosages of 50 and 100 mg/kg. The blood platelet aggregation elicited by collagen was suppressed by 30.4% (P < 0.05) and 46.4% (P < 0.01) after the injection of Ros A at doses of 100 and 150 mg/kg respectively. The ELT was shortened after the injection of Ros A (100 and 150 mg/kg) as compared with the control value (P < 0.05), while the plasma fibrinogen content remained unchanged. The results that Ros A showed mild antithrombotic effect. The mechanism of this effect might be related to its inhibition of platelet aggregation and promotion of fibrinolytic activity.
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Affiliation(s)
- Z W Zou
- Institute of Materia Medica, Chinese Academy of Medical Sciences, Beijing
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Xu LN, Yu WG, Tian JY. [Effect of sodium ferulate on C14-arachidonic acid metabolism in rabbit platelets]. Zhong Xi Yi Jie He Za Zhi 1988; 8:614-5, 583. [PMID: 3255545] [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: 01/04/2023]
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Tian JY, Tian GY. [Study of correlation between the fluoride content of drinking water and the proportion of constitute of clinical types of endemic skeletal fluorosis]. Zhonghua Liu Xing Bing Xue Za Zhi 1988; 9:68-71. [PMID: 3409302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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