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Zhang MQ, Jia X, Cheng CQ, Wang YX, Li YY, Kong LD, Li QQ, Xie F, Yu YL, He YT, Dong QT, Jia ZH, Wang Y, Xu AL. Capsaicin functions as a selective degrader of STAT3 to enhance host resistance to viral infection. Acta Pharmacol Sin 2023; 44:2253-2264. [PMID: 37311796 PMCID: PMC10618195 DOI: 10.1038/s41401-023-01111-9] [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: 02/15/2023] [Accepted: 05/13/2023] [Indexed: 06/15/2023] Open
Abstract
Although STAT3 has been reported as a negative regulator of type I interferon (IFN) signaling, the effects of pharmacologically inhibiting STAT3 on innate antiviral immunity are not well known. Capsaicin, approved for the treatment of postherpetic neuralgia and diabetic peripheral nerve pain, is an agonist of transient receptor potential vanilloid subtype 1 (TRPV1), with additional recognized potencies in anticancer, anti-inflammatory, and metabolic diseases. We investigated the effects of capsaicin on viral replication and innate antiviral immune response and discovered that capsaicin dose-dependently inhibited the replication of VSV, EMCV, and H1N1. In VSV-infected mice, pretreatment with capsaicin improved the survival rate and suppressed inflammatory responses accompanied by attenuated VSV replication in the liver, lung, and spleen. The inhibition of viral replication by capsaicin was independent of TRPV1 and occurred mainly at postviral entry steps. We further revealed that capsaicin directly bound to STAT3 protein and selectively promoted its lysosomal degradation. As a result, the negative regulation of STAT3 on the type I IFN response was attenuated, and host resistance to viral infection was enhanced. Our results suggest that capsaicin is a promising small-molecule drug candidate, and offer a feasible pharmacological strategy for strengthening host resistance to viral infection.
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Affiliation(s)
- Mei-Qi Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Xin Jia
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Cui-Qin Cheng
- School of Life Science, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yu-Xi Wang
- School of Life Science, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yi-Ying Li
- School of Life Science, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Ling-Dong Kong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Qi-Qi Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Fang Xie
- School of Life Science, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yan-Li Yu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yu-Ting He
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Qiu-Tong Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Zhan-Hong Jia
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yao Wang
- School of Life Science, Beijing University of Chinese Medicine, Beijing, 100029, China.
- National Key Laboratory of Efficacy and Mechanism on Chinese Medicine for Metabolic Diseases, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - An-Long Xu
- School of Life Science, Beijing University of Chinese Medicine, Beijing, 100029, China.
- National Key Laboratory of Efficacy and Mechanism on Chinese Medicine for Metabolic Diseases, Beijing University of Chinese Medicine, Beijing, 100029, China.
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Yan LS, Cheng BCY, Wang YW, Zhang SF, Qiu XY, Kang JY, Zhang C, Jia ZH, Luo G, Zhang Y. Xuelian injection ameliorates complete Freund's adjuvant-induced acute arthritis in rats via inhibiting TLR4 signaling. Heliyon 2023; 9:e21635. [PMID: 38027703 PMCID: PMC10658240 DOI: 10.1016/j.heliyon.2023.e21635] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 10/19/2023] [Accepted: 10/25/2023] [Indexed: 12/01/2023] Open
Abstract
Background Xuelian injection (XI), a classic preparation extracted from Saussureae Involucratae Herba, has been clinically used to manage rheumatoid arthritis (RA) for nearly twenty years in China. However, the underlying anti-RA mechanism of XI remains unclear. In this study, complete Freund's adjuvant (CFA)-induced acute arthritic model was used to examine the anti-RA effects of XI in vivo. The molecular mechanisms of this action were further investigated using lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Methods XI and XI freeze dried powder were characterized by UPLC analysis. CD68 and TLR4 expression in the ankle joints was measured by immunohistochemistry. The secretion of inflammatory mediators was detected by ELISA. The expression levels of TLR4 involved components were measured by Western blotting. The localization of transcription factors was measured by immunofluorescence assay. Results XI treatment ameliorated arthritic symptoms induced by CFA in the ankle joints of rats. The serum levels of inflammatory mediators, including TNF-α, MCP-1, and Rantes were decreased by XI treatment. The elevation of CD68 and TLR4 levels in ankle joints caused by CFA was suppressed by XI treatment. Moreover, XI treatment inhibited the secretion of nitric oxide and prostaglandin E2 in LPS-treated RAW264.7 macrophages. The expression of their enzymes iNOS and COX-2 was also decreased after XI treatment. The production of inflammatory mediators, including TNF-α, IL-6, IL-1β, MCP-1, MIP-1α, and Rantes was reduced by XI treatment in LPS-stimulated RAW264.7 cells. The phosphorylation of p38, JNK, ERK, TBK1, IKKα/β, IκB, p65, c-Jun, and IRF3 was reduced after XI treatment. Additionally, the expression levels of nuclear proteins of p65, c-Jun, and IRF3 were inhibited by XI treatment. Conclusions Taken together, XI possesses potential anti-RA effect and the underlying mechanism may be closely associated with the inhibition of TLR4 signaling. Our findings provide further pharmacological justifications for the clinical use of XI in RA treatment.
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Affiliation(s)
- Li-Shan Yan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | | | - Yi-Wei Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Shuo-Feng Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Xin-Yu Qiu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Jian-Ying Kang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Chao Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Zhan-Hong Jia
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Gan Luo
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
| | - Yi Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, PR China
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Jia ZH, Liu YB. [Progress of radical resection of pancreatic cancer in 30 years]. Zhonghua Wai Ke Za Zhi 2023; 61:344-348. [PMID: 37026174 DOI: 10.3760/cma.j.cn112139-20220608-00259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Pancreatic cancer is a malignant disease with extremely poor prognosis. For now, radical resection is the only approach for long-term survival. Therefore, for complete resection of different type of pancreatic neoplasms, quantities of surgical methods have been innovated and applied by scholars and surgeons. Aiming at various situations, amounts of methods and principle have been suggested. Unresectable neoplasms have been challenged day by day. Meanwhile, with progression of technology, minimally invasive techniques have been applied into resection of pancreatic neoplasms. This article mainly reviews the innovation of surgical methods and technology on radical surgery of pancreatic cancer in recent years.
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Affiliation(s)
- Z H Jia
- Department of Biliary-Pancreatic Surgery, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine; Shanghai Cancer Institute, State Key Laboratory of Oncogenes and Related Genes,Shanghai 200127, China
| | - Y B Liu
- Department of Biliary-Pancreatic Surgery, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine; Shanghai Cancer Institute, State Key Laboratory of Oncogenes and Related Genes,Shanghai 200127, China
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Qi Y, Jia JY, Gu QH, Zheng ZF, Li LN, Li D, Jia ZH, Xue Y, Yan TK. [Long-term efficacy of low-dose rituximab treatment in patients with primary membranous nephropathy]. Zhonghua Yi Xue Za Zhi 2022; 102:3201-3206. [PMID: 36319174 DOI: 10.3760/cma.j.cn112137-20220716-01555] [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: 06/16/2023]
Abstract
Objective: To explore the long-term efficacy of low-dose rituximab (RTX) treatment in patients with primary membranous nephropathy (PMN). Methods: Patients with biopsy-proven PMN who received low-dose RTX as initial or second-line regimen from August 2018 to May 2020 in the Department of Nephrology, Tianjin Medical University General Hospital were respectively enrolled. The clinical parameters of patients were urinary protein>3.5 g/24 h, serum albumin<30 g/L and estimated glomerular filtration rate (eGFR)>20 ml·min-1·(1.73 m2)-1. The treatment response of patients with PMN was observed during follow-up, and the remission rate of patients with urinary protein<8 g/24 h or ≥8 g/24 h, anti-PLA2R antibody<150 RU/ml or ≥150 RU/ml, eGFR≥ 60 ml·min-1·(1.73 m2)-1 or<60 ml·min-1·(1.73 m2)-1 were analyzed, respectively. Results: A total of 40 patients were enrolled, including 26 males and 14 females, aged (53±15) years. There were 14 patients received RTX as initial treatment and 26 patients as second-line therapy. The total median dose of RTX in the first course was 800 (425, 1 075) mg. The overall remission rate at the 1st, 3rd, 6th, 12th and 24th months were 12.5% (5/40), 17.5% (7/40), 47.5% (19/40), 57.5% (23/40), 60% (24/40), respectively. The median overall response time was 6.0 (3.0, 7.5) months. Two cases relapsed. Patients with remission (n=24) had a higher level of baseline eGFR [(93.9±28.0) vs (62.4±28.1) ml·min-1·(1.73 m2)-1, P=0.001), and a lower level of both urinary protein [5.9 (5.0, 6.5) vs 11.7 (8.6, 15.5) g/24 h, P<0.001] and anti-PLA2R antibody level [73 (29, 132) vs 453 (182, 950) RU/ml, P=0.004] than those without remission (n=16) 24 month after treatment. There was no statistically significant difference in the remission rate between initial and second-line treatment (P=0.101). Moreover, patients had a higher remission rate in urinary protein<8 g/24 h group (21/26 vs 3/14, P<0.001), anti-PLA2R antibody<150 RU/ml group (16/19 vs 5/16, P=0.002) and eGFR ≥ 60 ml·min-1·(1.73 m2)-1 group (22/29 vs 2/11, P=0.003). Conclusions: Low-dose RTX treatment in PMN is effective during long-term follow-up, and has a lower recurrence rate. The results also suggest that it is more suitable for patients with baseline urinary protein<8 g/24 h, anti-PLA2R antibody<150 RU/ml and eGFR≥ 60 ml·min-1·(1.73 m2)-1.
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Affiliation(s)
- Y Qi
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - J Y Jia
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Q H Gu
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Z F Zheng
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - L N Li
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - D Li
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Z H Jia
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Y Xue
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - T K Yan
- Department of Nephrology, Tianjin Medical University General Hospital, Tianjin 300052, China
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Guo S, Ding B, Zhou XH, Wu YB, Wang JG, Xu SW, Fang YD, Petrache CM, Lawrie EA, Qiang YH, Yang YY, Ong HJ, Ma JB, Chen JL, Fang F, Yu YH, Lv BF, Zeng FF, Zeng QB, Huang H, Jia ZH, Jia CX, Liang W, Li Y, Huang NW, Liu LJ, Zheng Y, Zhang WQ, Rohilla A, Bai Z, Jin SL, Wang K, Duan FF, Yang G, Li JH, Xu JH, Li GS, Liu ML, Liu Z, Gan ZG, Wang M, Zhang YH. Probing ^{93m}Mo Isomer Depletion with an Isomer Beam. Phys Rev Lett 2022; 128:242502. [PMID: 35776479 DOI: 10.1103/physrevlett.128.242502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/01/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
The isomer depletion of ^{93m}Mo was recently reported [Chiara et al., Nature (London) 554, 216 (2018)NATUAS0028-083610.1038/nature25483] as the first direct observation of nuclear excitation by electron capture (NEEC). However, the measured excitation probability of 1.0(3)% is far beyond the theoretical expectation. In order to understand the inconsistency between theory and experiment, we produce the ^{93m}Mo nuclei using the ^{12}C(^{86}Kr,5n) reaction at a beam energy of 559 MeV and transport the reaction residues to a detection station far away from the target area employing a secondary beam line. The isomer depletion is expected to occur during the slowdown process of the ions in the stopping material. In such a low γ-ray background environment, the signature of isomer depletion is not observed, and an upper limit of 2×10^{-5} is estimated for the excitation probability. This is consistent with the theoretical expectation. Our findings shed doubt on the previously reported NEEC phenomenon and highlight the necessity and feasibility of further experimental investigations for reexamining the isomer depletion under low γ-ray background.
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Affiliation(s)
- S Guo
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - B Ding
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - X H Zhou
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Y B Wu
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany
| | - J G Wang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - S W Xu
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Y D Fang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - C M Petrache
- University Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, France
| | - E A Lawrie
- iThemba LABS, National Research Foundation, P.O. Box 722, 7131 Somerset West, South Africa
- Department of Physics and Astronomy, University of the Western Cape, P/B X17, Bellville ZA-7535, South Africa
| | - Y H Qiang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Y Y Yang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - H J Ong
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
- Joint Department for Nuclear Physics, Lanzhou University and Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Research Center for Nuclear Physics, Osaka University, Osaka 567-0047, Japan
| | - J B Ma
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - J L Chen
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - F Fang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Y H Yu
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - B F Lv
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - F F Zeng
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Q B Zeng
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - H Huang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Z H Jia
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - C X Jia
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - W Liang
- Hebei University, Baoding 071001, People's Republic of China
| | - Y Li
- Hebei University, Baoding 071001, People's Republic of China
| | - N W Huang
- Department of Physics, Huzhou University, Huzhou 313000, China
| | - L J Liu
- Department of Physics, Huzhou University, Huzhou 313000, China
| | - Y Zheng
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - W Q Zhang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - A Rohilla
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Z Bai
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - S L Jin
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - K Wang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - F F Duan
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - G Yang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - J H Li
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - J H Xu
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - G S Li
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - M L Liu
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Z Liu
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Z G Gan
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - M Wang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Y H Zhang
- Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Science, Beijing 100049, People's Republic of China
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6
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Jia ZH, Tong AL, Sun LT, Liu YG, Liu JL, Wu Q, Fang X, Yang WS, Guo YH, Ritterbusch F, Lu ZT, Jiang W, Yang GM, Chen QW. An electromagnetic separation system for the enrichment of 39Ar. Rev Sci Instrum 2020; 91:033309. [PMID: 32259973 DOI: 10.1063/1.5128697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Accepted: 02/18/2020] [Indexed: 06/11/2023]
Abstract
An isotope enrichment system for 39Ar has been developed at the Institute of Modern Physics, which is designed to increase the abundance of 39Ar in the incident sample gas. With intense Ar+ beams produced by a 2.45 GHz electron cyclotron resonance ion source and a high mass resolution spectrometer system, Ar isotopes are evidently separated on the target plane and selectively collected by an Al target. The separated Ar isotopes have been identified on the target plane, which is consistent with the simulations. According to the recent cross-checked results with atom trap trace analysis, a high enrichment factor of 39Ar has been successfully achieved. This paper will present the design and test results of this system.
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Affiliation(s)
- Z H Jia
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Amin L Tong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y G Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J L Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Q Wu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W S Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y H Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - F Ritterbusch
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Z-T Lu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - W Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - G M Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China
| | - Q W Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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7
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Qian C, Sun LT, Jia ZH, Li LB, Ma YM, Fang X, Guo JW, Wang H, Lu W, Zhang XZ, Zhao HW. A new room temperature LECR5 ion source for the SESRI project. Rev Sci Instrum 2020; 91:023313. [PMID: 32113446 DOI: 10.1063/1.5128514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
The Space Environment Simulation and Research Infrastructure project, which uses various ion beams as irradiated materials in life science research, is being built at the Harbin Institute of Technology. A new room temperature electron cyclotron resonance ion source, the Lanzhou Electron Cyclotron Resonance Ion Source No. 5 (LECR5), has been designed and constructed. It is an intense, highly charged, heavy ion beam injector which generates ion beams from H to Bi, typically ∼50 eμA 209Bi32+. The LECR5 is designed to operate at microwave frequencies in the range of 14.5-18 GHz. The typical magnetic parameters are designed based on those optimized for SECRAL, which operates at 18 GHz. This paper presents the LECR5 ion source, its test bench, and the preliminary beam results.
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Affiliation(s)
- C Qian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L T Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Z H Jia
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - L B Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Y M Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - J W Guo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - W Lu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - X Z Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - H W Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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Zhao JC, Shi Y, Zhang Y, Zhang X, Ma X, Jia ZH, Wu ZJ, Zhang JQ. [The expression of MiR-148a in nasopharyngeal carcinoma and its effect on tumor cell biology functions in nasopharyngeal carcinoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:1219-1223. [PMID: 29798333 DOI: 10.13201/j.issn.1001-1781.2016.15.010] [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] [Received: 11/22/2015] [Indexed: 11/12/2022]
Abstract
Objective:Nasopharyngeal carcinoma(NPC) is a common malignant tumor, in recent years,most of studies have found that micro RNA played an important role in the development of NPC.This study was to explore the expression level of MiR-148a and its effect on the biological functions of NPC cells.Method:The expression of MiR-148a in NPC cell line CNE2 was detected by Real-time PCR method.MTT,clone formation assay and flow cytometry were applied to detect cell proliferation and apoptosis. We predicted that EGFR was the downstream target genes of MiR-148a through the analysis of bioinformatics software. Then the expression change of EGFR was measured by Real-time PCR and Western blot.Result:Comparing with normal nasopharyngeal epithelial tissue cells,MiR-148a expression level was significantly reduced in NPC cell line CNE2.MTT,clone formation assay and flow cytometry test show that overexpression of MiR-148a can inhibit cell proliferation and promote cell apoptosis.Real-time PCR and Western blot test show that MiR 148a can reduce the expression of EGFR.Conclusion:MiR-148a can affect the proliferation and apoptosis of NPC cell,and it is likely to be involved in the development and progression of NPC.
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Affiliation(s)
- J C Zhao
- ENT Head and Neck Surgery 263 Clinical Department of General Army Hospital,Region,Beijing,101149,China
| | - Y Shi
- ENT Head and Neck Surgery 263 Clinical Department of General Army Hospital,Region,Beijing,101149,China
| | - Y Zhang
- ENT Head and Neck Surgery 263 Clinical Department of General Army Hospital,Region,Beijing,101149,China
| | - X Zhang
- ENT Head and Neck Surgery 263 Clinical Department of General Army Hospital,Region,Beijing,101149,China
| | - X Ma
- ENT Head and Neck Surgery 263 Clinical Department of General Army Hospital,Region,Beijing,101149,China
| | - Z H Jia
- ENT Head and Neck Surgery 263 Clinical Department of General Army Hospital,Region,Beijing,101149,China
| | - Z J Wu
- ENT Head and Neck Surgery 263 Clinical Department of General Army Hospital,Region,Beijing,101149,China
| | - J Q Zhang
- ENT Head and Neck Surgery 263 Clinical Department of General Army Hospital,Region,Beijing,101149,China
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Zhang Y, Shi Y, Zhao JC, Ma X, Jia ZH, Zhang JQ, Wu ZJ, Wang Y. [The clinical application of balloon dilation Eustachian tuboplasty in patients with Eustachian tube dysfunction]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:649-652. [PMID: 29871099 DOI: 10.13201/j.issn.1001-1781.2016.08.017] [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] [Received: 10/18/2015] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the clinical application of balloon dilation Eustachian tuboplasty (BET) in patients with Eustachian tube dysfunction (ETD). Method:Twenty-five patients who were diagnosed as ETD and reserved BET surgery were retrospectively analyzed in this study. Result:After 1-year's follow-up, among 25 ETD patients, the total cure rate was 55.9% and the effective rate was 85.3%. The cure rate and effective rate was 52.9% and 76.5% in the delayed opening of the ET group; 58.8% and 94.1% in the unopened group, which was higher than the other one. Conclusion:BET surgery is safe and effective in the treatment of BET patients.
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Affiliation(s)
- Y Zhang
- Otorhinolaryngology Head and Neck Surgery of 263 Clinical Department, Chinese People's Liberation Army General Hospital of Beijing Military Region, Beijing, 101149, China
| | - Y Shi
- Otorhinolaryngology Head and Neck Surgery of 263 Clinical Department, Chinese People's Liberation Army General Hospital of Beijing Military Region, Beijing, 101149, China
| | - J C Zhao
- Otorhinolaryngology Head and Neck Surgery of 263 Clinical Department, Chinese People's Liberation Army General Hospital of Beijing Military Region, Beijing, 101149, China
| | - X Ma
- Otorhinolaryngology Head and Neck Surgery of 263 Clinical Department, Chinese People's Liberation Army General Hospital of Beijing Military Region, Beijing, 101149, China
| | - Z H Jia
- Otorhinolaryngology Head and Neck Surgery of 263 Clinical Department, Chinese People's Liberation Army General Hospital of Beijing Military Region, Beijing, 101149, China
| | - J Q Zhang
- Otorhinolaryngology Head and Neck Surgery of 263 Clinical Department, Chinese People's Liberation Army General Hospital of Beijing Military Region, Beijing, 101149, China
| | - Z J Wu
- Otorhinolaryngology Head and Neck Surgery of 263 Clinical Department, Chinese People's Liberation Army General Hospital of Beijing Military Region, Beijing, 101149, China
| | - Y Wang
- Otorhinolaryngology Head and Neck Surgery of 263 Clinical Department, Chinese People's Liberation Army General Hospital of Beijing Military Region, Beijing, 101149, China
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Chu ZS, Yu ZL, Pan SY, Jia ZH, Wang XY, Zhang Y, Zhu PL, Wang XJ, Ko KM. A comparative study between Wuweizi seed and its post-ethanol extraction residue in normal and hypercholesterolemic mice. Lipids Health Dis 2015; 14:93. [PMID: 26303027 PMCID: PMC4549086 DOI: 10.1186/s12944-015-0097-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 08/17/2015] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND At the present, a shift from drug therapy, especially herbal therapy, to dietary supplementation is a trend in the management of dyslipidemia and related diseases. Therefore, the optimal utilization of herbal resource is important for a sustainable development of herbal medicine. Here, we compared the effects of dietary supplementation with Chinese medicine Schisandrae Chinensis Fructus seed (FSC-S) and the post-ethanol extraction residue of FSC-S (FSC-SpEt) on normal diet-fed (normal) and experimental hypercholesterolemic (HCL) mice. METHODS Male ICR mice (n = 10 in each group), weighing 17-21 g, were fed with normal diet (ND) or high cholesterol/bile salt (1/0.3 %, w/w) diet (HCBD) with or without supplemented with FSC-S, FSC-SpEt), or lipid-lowering agent fenofibrate (FF). Ten days later, serum/hepatic lipid and glucose (GLU) levels, body weight, organ/epididymal fat masses, and food/water intake were measured. Lipid level measurements included those of total cholesterol (TC), triglyceride (TG), high density lipoprotein (HDL), low density lipoprotein (LDL), HDL/LDL ratio, LDL/HDL ratio, and non-HDL (N-HDL). RESULTS Supplementation with FSC-S and FSC-SpEt increased serum TC (by 64 and 25 %, respectively) and LDL (by 60 and 27 %, respectively) in normal mice. FSC-S supplementation elevated serum TC, TG, HDL, LDL, and LDL/HDL ratio (up to 64, 118, 77, 197, and 51 %, respectively) in HCL mice. FSC-SpEt supplementation reduced serum TG (by 15 %) and LDL/HDL ratio (by 18 %), as well as increased serum HDL (by 22 %) and HDL/LDL ratio (by 21 %) in HCBD-fed mice. FSC-S decreased hepatic TC (by 19 %) contents and increased hepatic TG contents by 14 % in normal mice. FSC-S reduced hepatic GLU level in both normal and HCL mice by 24 and 22 %, respectively. Hepatic TC and TG contents were lowered in FSC-SpEt-supplemented normal mice by 16 and 20 %, respectively. The body/fatty masse and food intake were lowered, but the feed efficiency index (FEI), weight gain per unit of food ingested, was increased in FSC-S-supplemented normal and HCL mice. FF supplements reduced serum/hepatic lipids, hepatic GLU contents, and epididymal fat mass, but it induced hepatomegaly and high serum alanine aminotransferase (ALT) activity in normal and/or HCL mice. CONCLUSION The ensemble of results indicated that while FSC-SpEt supplementation is beneficial for the treatment of hyperlipidemia/fatty liver, FSC-S is potentially useful for the management of overweight/obesity.
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Affiliation(s)
- Zhu-Sheng Chu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China.
| | - Zhi-Ling Yu
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China.
| | - Si-Yuan Pan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China.
| | - Zhan-Hong Jia
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China.
| | - Xiao-Yan Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China.
| | - Yi Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China.
| | - Pei-Li Zhu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100102, China.
| | - Xiu-Juan Wang
- School of Traditional Medicine, Capital Medical University, Beijing, 100069, China.
| | - Kam-Ming Ko
- Division of Life Science, Hong Kong University of Science & Technology, Hong Kong, China.
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Wang XY, Yu ZL, Pan SY, Zhang Y, Sun N, Zhu PL, Jia ZH, Zhou SF, Ko KM. Supplementation with the extract of schisandrae fructus pulp, seed, or their combination influences the metabolism of lipids and glucose in mice fed with normal and hypercholesterolemic diet. Evid Based Complement Alternat Med 2014; 2014:472638. [PMID: 24876871 PMCID: PMC4021675 DOI: 10.1155/2014/472638] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 03/17/2014] [Accepted: 03/17/2014] [Indexed: 02/07/2023]
Abstract
SCHISANDRAE FRUCTUS (SF), WHICH POSSESSES FIVE TASTES sweet (fruit skin), sour (pulp), bitter/pungent (seed core), and saltiness (all parts), can produce a wide spectrum of biological activities in the body. Here, we investigated the effects of the ethanolic extract of SF pulp, seed, or their combination (namely, EtSF-P, EtSF-S, or EtSF-P/S, resp.; collectively called EtSF) on the metabolism of lipids and glucose in normal diet- (ND-) and hypercholesterolemic diet- (HCLD-) fed mice. Supplementation with EtSF significantly reduced hepatic triglyceride and cholesterol levels by 18-47% in both ND- and HCLD-fed mice. EtSF supplementation reduced serum triglyceride levels (approximately 29%), whereas EtSF-P and EtSF-S/P elevated serum cholesterol (up to 26 and 44%, resp.) in HCLD-fed mice. Treatment with EtSF decreased hepatic glucose levels (by 9-44%) in both ND- and HCLD-fed mice. Supplementation with EtSF-S or EtSF-S/P (at 1 and 3%) increased biliary or fecal TC contents in HCLD-fed mice. However, supplementation with EtSF-S/P at 9% reduced biliary TC levels in HCLD-fed mice. EtSF-P or EtSF-S/P supplementation reduced serum alanine aminotransferase activity in HCLD-fed mice. The findings suggested that supplementation with EtSF lowered lipid and glucose accumulation in the liver and increased fecal cholesterol contents in mice. Dietary supplementation with EtSF-P or EtSF-S/P attenuated liver damage in HCLD-fed mice.
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Affiliation(s)
- Xiao-Yan Wang
- Department of Pharmacology, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Zhi-Ling Yu
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong
| | - Si-Yuan Pan
- Department of Pharmacology, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Yi Zhang
- Department of Pharmacology, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Nan Sun
- Department of Pharmacology, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Pei-Li Zhu
- Department of Pharmacology, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Zhan-Hong Jia
- Department of Pharmacology, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, China
| | - Shu-Feng Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, FL 33612, USA
| | - Kam-Ming Ko
- Division of Life Science, Hong Kong University of Science & Technology, Hong Kong
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Abstract
BACKGROUND Immune dysfunction is very common in diabetes mellitus (DM). However, there is no evidence whether such immune dysfunction can influence the development of DM, especially the development of diabetic nephropathy (DN). AIM To investigate the influence of absence of T cells on DN. MATERIALS AND METHODS Balb/c nude mice and Balb/c wild-type nude (WT) mice were injected with streptozotocin (STZ). Serum tumor necrosis factor α (TNF-α), blood glucose, body weight, urine albumin/creatinine ratio and rate of kidney weight to body weight (KW/BW) were measured. RESULTS After modeling, there was no difference of blood glucose level between nude mice and WT mice except at week 2 (28.3 ± 4.9 mmol/l vs 23.1 ± 3.9 mmol/l, p<0.01). At week 4, the serum TNF- α level of nude mice got to 175.08 ± 46.03 pg/ml (p<0.05, compared with baseline level 80.19 ± 8.46 pg/ml), whereas the TNF- α levels of WT mice was stable. At week 4, the body weight of nude mice was lower than that of WT mice (14.7 ± 3.15 g vs 17.97 ± 2.85 g, p<0.05); the urine albumin/creatinine ratio (Alb/Cr) of nude mice was higher than that of WT mice (50.96 ± 5.57 mg/mmol vs 41.09 ± 5.79 mg/mmol, p<0.05); the kidney weight to body weight of nude mice was higher than that of WT mice (0.01352 ± 0.00163 vs 0.01173 ± 0.00131, p<0.05). Correlation analysis showed urine Alb/Cr positively correlated with serum TNF-α level at week 4 (r = 0.588, p<0.01). At week 4, the increase of type IV collagen in the glomeruli was more prominent in diabetic nude mice than in diabetic WT mice (p<0.05). CONCLUSIONS Absence of T cells in DM might influence the development of DN.
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Affiliation(s)
- S Lin
- Department of Nephrology, General Hospital of Tianjin Medical University, Tianjin 300052, China.
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Pan SY, Jia ZH, Zhang Y, Yu Q, Wang XY, Sun N, Zhu PL, Yu ZL, Ko KM. Novel mouse model of combined hyperlipidemia associated with steatosis and liver injury by a single-dose intragastric administration of schisandrin B/cholesterol/bile salts mixture. J Pharmacol Sci 2013; 123:110-9. [PMID: 24096833 DOI: 10.1254/jphs.13087fp] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Hyperlipidemia is referred to as hypercholesterolemia, hypertriglyceridemia, or both in combined hyperlipidemia. Here, a novel mouse model of combined hyperlipidemia is described. Mice were orally given a single dose of a modeling agent (MA) made of a mixture of schisandrin B/cholesterol/bile salts (1/2/0.5 g/kg) suspended in olive oil. MA treatment increased serum triglycerides (TG) and total cholesterol (TC) (up to 422% and 100% at 12 - 96 h post-treatment, respectively) and hepatic TG and TC (up to 220% and 26%, respectively) in a time- and dose-dependent manner, associated with elevation of high-density lipoprotein and low-density lipoprotein levels. Serum alanine/aspartate aminotransferase activities, indicators of liver cell damage, were also elevated (up to 198%) at 48 and 72 h post-MA treatment. Fenofibrate blocks MA-induced hyperlipidemia, lipid accumulation in the liver, as well as liver injury. Oral administration of a mixture of schisandrin B, cholesterol, and bile salt could generate an interesting mouse model of combined hyperlipidemia associated with hepatic steatosis and steatohepatitis.
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Affiliation(s)
- Si-Yuan Pan
- Department of Pharmacology, School of Chinese Materia Medica, Beijing University of Chinese Medicine, China
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Ma H, Zhang W, Song WH, Sun P, Jia ZH. Effects of tryptophan supplementation on cashmere fiber characteristics, serum tryptophan, and related hormone concentrations in cashmere goats. Domest Anim Endocrinol 2012; 43:239-50. [PMID: 22541934 DOI: 10.1016/j.domaniend.2012.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 03/15/2012] [Accepted: 03/15/2012] [Indexed: 11/26/2022]
Abstract
This study was designed to investigate the effects of tryptophan (Trp) supplementation on cashmere fiber characteristics and on serum Trp, melatonin (MEL), prolactin (PRL), insulin-like growth factor 1 (IGF-1), triiodothyronine (T3), and thyroxine (T4) concentrations in cashmere goats during the cashmere fast-growth period. Thirty-six Liaoning cashmere wether goats were stratified on the basis of body weight (28±0.8 kg) and assigned randomly to 1 of the following 4 rumen-protected Trp treatments: 0, 2.0, 4.0, and 6.0 g per goat per day. The experimental period lasted 137 d. Blood samples were collected monthly during the daytime (8:00 AM) and at night (8:00 PM). Tryptophan supplementation improved cashmere growth rates, cashmere weight, and body weight (P=0.001) and increased serum Trp levels, nighttime MEL concentrations, IGF-1, and T3 and T4 concentrations (P<0.05). Across the treatments and sampling months, a highly positive correlation between cashmere growth rate and nighttime serum MEL concentrations was observed (r=0.879, P=0.001). A moderately negative correlation between cashmere growth rates and serum PRL concentrations during the day and at night (rday=-0.645, P=0.007; rnight=-0.583, P=0.018) was observed. A moderately positive correlation between the cashmere growth rate and the daytime serum IGF-1 concentration (r=0.536, P=0.032) was observed, and no correlation was found between the cashmere growth rate and the other serum hormone concentrations. These data indicate that changes in serum concentrations of MEL, IGF-1, and PRL are related to cashmere growth in Liaoning cashmere goats during the cashmere fast-growth period. Under the experimental conditions of the current trial, we suggest that Trp may promote cashmere growth by increasing daytime IGF-1 and nighttime MEL secretion.
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Affiliation(s)
- H Ma
- Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
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Jia ZH, Schaper AK, Massa W, Treutmann W, Rager H. Structure and phase transitions in Ca2CoSi2O7–Ca2ZnSi2O7 solid-solution crystals. Acta Crystallogr B Struct Sci 2006; 62:547-55. [PMID: 16840804 DOI: 10.1107/s0108768106016612] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Accepted: 05/05/2006] [Indexed: 11/11/2022]
Abstract
While the incommensurability in melilites is well documented, the underlying atomic configurations and the composition-dependent phase behavior are not yet clear. We have studied the transition from the incommensurate phase to the high-temperature normal phase (IC-N), and to the low-temperature commensurate phase (IC-C) of selected members of the Ca2Co1 − x
Zn
x
Si2O7 system using X-ray and single-crystal electron diffraction, as well as calorimetric measurements. The space group of the unmodulated normal phase and of the basic structure of the incommensurate phase is P\bar 4 2_1m; the commensurate lock-in superstructure was refined as a pseudomerohedral twin in the orthorhombic space group P21212. We found that the commensurate modulation is mainly connected with a sawtooth-like periodicity of rotations of the T
1 tetrahedra in the 3 × 3 superstructure. In this structure, the clustering of the low-coordinated Ca2+ ions is not complete so that only imperfect octagons were detected. Generally, the effect of increasing substitution of Co by Zn was a continuous reduction of the IC-N and IC-C transition temperatures.
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Affiliation(s)
- Z H Jia
- Department of Geosciences, Material Sciences Center, Philipps University Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
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Nes WD, Lukyanenko YO, Jia ZH, Quideau S, Howald WN, Pratum TK, West RR, Hutson JC. Identification of the lipophilic factor produced by macrophages that stimulates steroidogenesis. Endocrinology 2000; 141:953-8. [PMID: 10698170 DOI: 10.1210/endo.141.3.7350] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Macrophages are known to release a lipophilic factor that stimulates testosterone production by Leydig cells. This macrophage-derived factor (MDF) is thought to be physiologically relevant, because removal of macrophages from the testis results in altered testosterone secretion and reduced fertility. The purpose of the present study was to purify this factor, elucidate its chemical structure, and determine whether it is both present in the testis and acts when injected intratesticularly. Culture media from testicular and peritoneal macrophages were extracted with ether, and the organic phase was sequentially purified on C18, silica, and cyano-HPLC columns. MDF was detected using a rat Leydig cell bioassay, with testosterone secretion being the end point. Purified material and crude ether extracts were analyzed by gas chromatography/mass spectrometry and nuclear magnetic resonance spectroscopy. The time of elution of MDF from both testicular and peritoneal macrophages was identical on all three HPLC columns. A single peak was observed when MDF, obtained from the final HPLC column, was analyzed by gas chromatography. The MS fragmentation pattern of purified material from both peritoneal and testicular macrophages was identical to that of a reference preparation of 25-hydroxycholesterol. Also, the nuclear magnetic resonance spectrum of MDF was similar to that of authentic 25-hydroxycholesterol. When 25-hydroxycholesterol was subjected to the identical purification scheme as MDF, it was found to elute at the same times as MDF on all three columns and elicited activity in the Leydig cell bioassay as expected. Control medium purified identically did not contain 25-hydroxycholesterol or have biological activity. Ether extracts of testis contained 25-hydroxycholesterol, indicating that this compound is present under physiological conditions. Similarly, when 25-hydroxycholesterol was injected into the testis of adult rats, testosterone production was increased within 3 h. Taken together, these data indicate that the lipophilic factor produced by macrophages that stimulates steroidogenesis is 25-hydroxycholesterol.
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Affiliation(s)
- W D Nes
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock 79430, USA
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Yang XL, Xie SW, Jia ZH. Noncritical phase matching in the different frequency generation of noncollinear alignment: an exact analysis. Appl Opt 1994; 33:7518-7519. [PMID: 20941317 DOI: 10.1364/ao.33.007518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
By analyzing the phase mismatch in the different frequency generation of noncollinear alignment, we obtain the condition in which noncritical phase matching can be realized. The relevant equation for determining the optimum angles between the incident beams is derived. The calculated result agrees exactly with the experimental one.
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Abstract
This study determined the responses of early lactating goats fed varying amounts of rumen-inert fat. Forty multiparous high producing Alpine does in the first 2 wk of lactation were assigned randomly to four isonitrogenous dietary treatments containing 0, 3, 6, and 9% added fat. The study consisted of a 2-wk preliminary and a 10-wk experimental period. Feed intake, blood glucose, and rumen pH were not affected by dietary treatments. Body weight gain and milk production decreased linearly as dietary fat increased. Peak production was higher with 3% added fat than with 6 and 9%. The SCC, total solids, and lactose contents of milk were unaffected by fat percentage. Milk fat percentage increased linearly as fat percentage increased; milk protein content was highest at 6% dietary fat addition. The rumen-inert fat tended to increase long-chain fatty acids and to reduce short-chain fatty acids of milk. These findings suggest that fat supplementation at 3% of the total diet can increase fat percentage in milk from high producing dairy goats in early lactation.
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Affiliation(s)
- T H Teh
- E (Kika) de la Garza Institute for Goat Research, Langston University, OK 73050
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Abstract
Forty multiparous Alpine does (mean BW of 61.5 kg) were utilized in a 13-wk trial to investigate the effects of a TMR differing in CP amount (13 or 17%) and source (solvent-extracted soybean meal or heat-treated soybean meal with or without urea) on lactational performance. Protein supplements contributed 30% of the N in 13% CP diets and 50% of the N in 17% CP diets. All diets were isoenergetic (2.5 Mcal of metabolizable energy/kg of DM) and were fed for ad libitum intake for the entire trial. Mean DMI (2.88 kg/d), milk production (2.65 kg/d), milk fat (4.05%), milk protein (2.68%), milk lactose (4.54%), and milk SNF (7.81%) did not differ among dietary treatments. Plasma urea N was greater (23.2 vs. 10.9 mg/dl) in does receiving the 17% CP diets; however, blood hematocrit (27.4%), beta-hydroxybutyrate (843 microM), plasma glucose (68.8 mg/dl), NEFA (600 mu eq/dl), and plasma total protein (74.% g/L) were not significantly affected by treatment. The apparent absence of a dietary effect on lactational performance may be due to the high DMI of the does (4.7% when expressed as DMI per kilogram of BW) and high CP intake providing a surfeit of protein relative to requirements.
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Affiliation(s)
- T Sahlu
- E. (Kika) de la Garza Institute for Goat Research, Langston University, OK 73050
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Abstract
Two new steroidal saponins, (25 R)-spirostan-3 beta-ol-6-one-3-O-[alpha-L-arabinopyranosyl (1----6)]-beta-D-glucopyranoside and (25 R)-spirostan-3 beta-ol-6-one-3-O-[beta-D-glucopyranosyl(1---4)] [alpha-L-arabinopyranosyl(1----6)]-beta-glucopyranoside, were isolated from the rhizomes of Smilax lebrunii. Their structures have been established by chemical and spectral methods.
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Affiliation(s)
- Z H Jia
- Institute of Organic Chemistry, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, P.R. China
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Jia ZH. [Preliminary observation of systolic time interval and echocardiography on the grading of ventricular function (author's transl)]. Zhonghua Xin Xue Guan Bing Za Zhi 1981; 9:134-6. [PMID: 7318665] [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: 01/24/2023]
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