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Li JC, Zhu XJ, Ye JH, Tan ZH, Cai SH, Deng YL, Chen J, Tian WC, Luo DH, Zhong WD. [Bioinformatics-based analysis of the effect of general Transcription Factor IIH on prognosis of Prostate cancer]. Zhonghua Yi Xue Za Zhi 2024; 104:1410-1417. [PMID: 38644292 DOI: 10.3760/cma.j.cn112137-20231228-01504] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Objective: To investigate the genetic and expression characteristics of transcription factor IIH (TFIIH) in pre-initiationcomplex in prostate cancer (PCa) and its relationship with prostate cancer progression. Methods: Analyzing the expression characteristics and clinical signification of TFIIH subunits about 495 cases of PCa and 52 cases of adjacent cancer in The Cancer Genome Atlas-Prostate adenocarcinoma (TCGA-PRAD) database. PCa microarray chip was used to verify the correlation between the key factor General Transcription Factor IIH Subunit 4 (GTF2H4) in TFIIH and clinical features. Results: The 495 patients with PCa were (61.01±6.82) years old.The mRNA expression of ERCC3、GTF2H4 and MNAT1 were high in PCa tissues with GS≥8(P<0.05). The expression of GTF2H4 and MNAT1 were relevant to the pathological stages(P<0.05). High expression of GTF2H4 has higher biochemical recurrence (BCR) rate in PCa patients(HR=2.47, 95%CI:1.62-3.77, P<0.001), which has better predictive effect of BCR in PCa patients(The 3rd, 5th, and 7th year AUC all>0.7) than other subunits, and it has been verified in four additional databases. Single-factor Cox regression analysis showed that GTF2H4 were risk factors for BCR (HR=2.470, 95%CI:1.620-3.767, P<0.001) and GTF2H5 were protective factors(HR=0.506,95%CI: 0.336-0.762, P=0.001). The results of immunohistochemical staining showed that the protein expression of GTF2H4 was correlated with the clinical features of PCa patients.The differences of the above results were statistically significant. Conclusion: GTF2H4, the key factor of TFIIH, is highly expressed in PCa and indicates a poor prognosis.
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Affiliation(s)
- J C Li
- Department of Urology, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
| | - X J Zhu
- Department of Urology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou 510095, China
| | - J H Ye
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau 999078, China
| | - Z H Tan
- Department of Urology, Zhujiang Hospital, School of South Medical University, Guangzhou 510280, China
| | - S H Cai
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Taipa, Macau 999078, China
| | - Y L Deng
- the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - J Chen
- the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - W C Tian
- the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - D H Luo
- the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - W D Zhong
- Department of Urology, the Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510180, China
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2
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Luo JF, Yue L, Wu TT, Zhao CL, Ye JH, He K, Zou J. Triterpenoid and Coumarin Isolated from Astilbe grandis with Anti-Inflammatory Effects through Inhibiting the NF-κB Pathway in LPS-Induced RAW264.7 Cells. Molecules 2023; 28:5731. [PMID: 37570700 PMCID: PMC10421095 DOI: 10.3390/molecules28155731] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/17/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The roots of Astilbe grandis, known as "Ma sang gou bang", are used as a Miao traditional medicine with anti-inflammatory and analgesic properties. However, the active components and mechanism of action of this plant remain mostly uncharacterized. The aim of this study was to identify its active components and verify their pharmacological activity. The extract of A. grandis root was separated using various chromatographic methods. As a result, we obtained one novel triterpenoid, named astigranlactone (1), which has an unusual lactone moiety formed between C-7 and C-27. Additionally, a known coumarin compound, 11-O-galloyl bergenin (2) was isolated from this plant. The structures of these two compounds were elucidated by extensive NMR experiments in conjunction with HR-ESI-MS data. To the best of our knowledge, both compounds were isolated from this species for the first time. Moreover, we tested the anti-inflammation effect of the two compounds by establishing a cellular inflammation model induced by LPS in RAW264.7 cells. The effect of different concentrations of these compounds on the activity of RAW264.7 cells was assessed using a CCK8 assay. The levels of nitric oxide (NO), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-1β (IL-1β) in the supernatant of each group were evaluated using the Griess method and an enzyme-linked immunosorbent assay (ELISA). Western blot and quantitative real-time PCR (qRT-RCR) were used to measure the levels of cyclooxygenase 2 (COX-2) and nitric oxide synthase (iNOS) gene expression. Our findings revealed that these two compounds inhibited the high levels of NO, TNF-α, IL-6, IL-1β, COX-2, and iNOS (induced by LPS). Mechanistic studies demonstrated that these two compounds reduced the activation of the nuclear transcription factor-B (NF-κB) signaling pathway by inhibiting the phosphorylation of p65. Therefore, our study indicates that compounds 1 and 2 can exert a definite anti-inflammatory effect by inhibiting the NF-κB signaling pathway.
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Affiliation(s)
- Jin-Fang Luo
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China; (J.-F.L.); (T.-T.W.); (C.-L.Z.); (J.-H.Y.)
- School of Basic Medicine, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China
| | - Lan Yue
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China; (J.-F.L.); (T.-T.W.); (C.-L.Z.); (J.-H.Y.)
| | - Tian-Tai Wu
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China; (J.-F.L.); (T.-T.W.); (C.-L.Z.); (J.-H.Y.)
| | - Chen-Liang Zhao
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China; (J.-F.L.); (T.-T.W.); (C.-L.Z.); (J.-H.Y.)
| | - Jiang-Hai Ye
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China; (J.-F.L.); (T.-T.W.); (C.-L.Z.); (J.-H.Y.)
| | - Kang He
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China; (J.-F.L.); (T.-T.W.); (C.-L.Z.); (J.-H.Y.)
| | - Juan Zou
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guian District, Guiyang 550025, China; (J.-F.L.); (T.-T.W.); (C.-L.Z.); (J.-H.Y.)
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3
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Chen RS, Zhang JJ, Zhang Y, Xu CY, Ye JH. Synthesis and crystal structure of (4a R,7 S)-7-hydroxy-7-isopropyl-1,1-dimethyldecahydro-2 H,6 H-8 a,4 a-(epoxymethano)phenanthren-12-one, C 20H 32O 3. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Abstract
C20H32O3, monoclinic, P21 (no. 4), a = 7.8981(17) Å, b = 10.302(2) Å, c = 11.028(3) Å, β = 90.020(2)°, V = 897.3(3) Å3, Z = 2, R
gt
(F) = 0.0603, wR
ref
(F
2) = 0.1342, T = 273(2) K.
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Affiliation(s)
- Ren-Song Chen
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jing-Jie Zhang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Yi Zhang
- Guizhou Medical University , Guiyang 550025 , P. R. China
| | - Chuan-Yan Xu
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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4
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Chen RS, Ye JH, Luo YL, Xu CY, Zou J, Zhang JJ. Crystal structure of 1,2,3,5,13-pentamethoxy-6,7-dimethyl-1,2,3,4,4a,5,6,7,8,13b-decahydrobenzo[3′,4′]cycloocta[1′,2′:4,5]benzo[1,2- d][1,3]dioxole, C 24H 30O 7. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Abstract
C24H30O7, orthorhombic, P212121 (no. 19), a = 11.4194(5) Å, b = 13.4657(6) Å, c = 14.7549(7) Å, V = 2268.86(18) Å3, Z = 4, Rgt
(F) = 0.0535, wRref
(F
2) = 0.1239, T = 273(2) K.
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Affiliation(s)
- Ren-Song Chen
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Yu-Ling Luo
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Chuan-Yan Xu
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jing-Jie Zhang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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5
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Ye JH, Chen RS, Xu CY, Zou J, Zhang JJ. Crystal structure of (3a7 R,13b R)-3-((1 R)-1-hydroxy-1-(5-methyl-6-oxo-3,6-dihydro-2 H-pyran-2-yl)ethyl)-3a,11,11,13b-tetramethyl-2,3,3a,4,5,11,11a,12,13,13b-decahydroindeno[5′,4′:4,5] cyclohepta[1,2- c]oxepin-9(1 H)-one, C 30H 40O 5. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Abstract
C30H40O5, orthorhombic, P212121 (no. 19), a = 6.5012(3) Å, b = 15.3297(7) Å, c = 21.8138(14) Å, V = 2672.3(2) Å3, Z = 4, Rgt
(F) = 0.0537, wRref
(F
2) = 0.1355, T = 273(2) K.
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Affiliation(s)
- Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Ren-Song Chen
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Chuan-Yan Xu
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jing-Jie Zhang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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6
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Wang L, Li GJ, Ye JH, He K, Zou J. Crystal structure of (−)- β-D-19-glucopiranosyl-9,15-dihydroxy kaurenoate, C 26H 40O 9. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Abstract
C26H40O9, orthorhombic, P212121 (no. 19), a = 22.6816(12) Å, b = 7.3911(3) Å, c = 15.6072(8) Å, V = 2616.4(2) Å3, Z = 4, Rgt
(F) = 0.0455, wRref
(F
2) = 0.1230, T = 273(2) K.
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Affiliation(s)
- Lei Wang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Guang-Jie Li
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Kang He
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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7
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Huang H, Yang J, Sun YC, Ye JH, He K, Zou J. Crystal structure of 7-hydroxy-6-(2-hydroxyethyl)-2 H-chromen-2-one, C 11H 10O 4. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Abstract
C11H10O4, monoclinic, Pn (no. 7), a = 4.8622(5) Å, b = 6.7853(7) Å, c = 14.3349(17) Å, β = 96.556(3)°, V = 469.84(9) Å3, Z = 2, Rgt
(F) = 0.0512, wRref
(F
2) = 0.1249, T = 273(2) K.
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Affiliation(s)
- Hua Huang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jing Yang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Yi-chun Sun
- Sinopharm Group Tongjitang (Guizhou) Pharmaceutical Co., Ltd. , Guiyang 550009 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Kang He
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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8
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Zhang WW, Ye JH, Huang H, Zou J, He K. Synthesis and crystal structure of 1-((3 R,10 S,13 R,17 S)-3-((4-methoxyphenyl)amino)-10,13-dimethylhexadecahydro-1 H-cyclopenta[ α]-phenanthren-17-yl)ethan-1-one, C 28H 41NO 2. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Abstract
C28H41NO2, orthorhombic, P212121 (no. 19), a = 10.4480(5) Å, b = 12.4188(6) Å, c = 18.3905(10) Å, V = 2386.2(2) Å3, Z = 4, R
gt
(F) = 0.0608, wR
ref
(F
2) = 0.1510, T = 273(2) K.
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Affiliation(s)
- Wen-Wen Zhang
- Guizhou University of Traditional Chinese Medicine , GuiYang City , 550025 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , GuiYang City , 550025 , P. R. China
| | - Hua Huang
- Guizhou University of Traditional Chinese Medicine , GuiYang City , 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , GuiYang City , 550025 , P. R. China
| | - Kang He
- Guizhou University of Traditional Chinese Medicine , GuiYang City , 550025 , P. R. China
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9
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Tan YC, Li JX, Ye JH, Zou J, Liu YH. Crystal structure of 3,5,7-trimethoxy-3′,4′-methylenedioxy-flavone, C 19H 16O 7. Z KRIST-NEW CRYST ST 2023. [DOI: 10.1515/ncrs-2022-0540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Abstract
C19H16O7, monoclinic, C2/c (no. 15), a = 30.5661(14) Å, b = 7.0209(3) Å, c = 17.2028(7) Å, β = 117.342(1)°, V = 3279.3(2) Å3, Z = 8, R
gt
(F) = 0.0489, wR
ref
(F
2) = 0.1398, T = 273(2) K.
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Affiliation(s)
- Yong-cui Tan
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Ji-Xin Li
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Ya-Hua Liu
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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10
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Deng R, Zou J, Zhao CL, Yang YM, Ku CF, Zhu Y, Liang ZM, Ye JH, Pan LT, Zhang HJ. Bioactive icetexane and abietane diterpenes from Isodon phyllopodus. Nat Prod Res 2023; 37:68-76. [PMID: 34498960 DOI: 10.1080/14786419.2021.1950716] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A new icetexane diterpenoid, 11, 12, 20α-trihydroxyl-7β-methoxyicetexa-8, 11, 13-triene-19, 10-lactone [Phyllane A (1)], and a new abietane diterpenoid, 7β, 20-epoxy-3β, 17-acetoxy-abieta-8, 11, 13-teriene-11, 12-diol [phyllane B (2)], along with two known compounds (3 and 4) were isolated from the methanol (MeOH) extract of twigs and leaves of the folk medicinal Isodon phyllopodus. Their structures were determined by spectroscopic analyses including 2 D NMR spectral data, and further confirmed by X-ray single crystal diffraction. Moreover, the compounds were evaluated for their cytotoxicity and anti-HIV activities, and phyllane A showed anti-HIV activity with an IC50 value of 15.7 μM, but phyllane B was found to be cytotoxic to the A549 host cells with a CC50 value of 108.5 μM.
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Affiliation(s)
- Rui Deng
- Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China
| | - Chen-Liang Zhao
- Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China.,School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Ye-Meng Yang
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Chuen Fai Ku
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Yu Zhu
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Zheng-Ming Liang
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China
| | - Lu-Tai Pan
- Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China
| | - Hong-Jie Zhang
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong
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11
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Huang H, Zhang WW, Ye JH, Zou J, He K. Synthesis and crystal structure of 1-((3 R,10 S,13 R,17 S)-10,13-dimethyl-3-( p-tolylamino)hexadecahydro-1 H-cyclopenta-[a]phenanthren-17-yl)ethan-1-one, C 28H 41NO. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
C28H41NO, orthorhombic, P212121 (no. 19), a = 10.5758(10) Å, b = 12.3659(9) Å, c = 18.0301(16) Å, V = 2358.0(4) Å3, Z = 4, Rgt
(F) = 0.0524, wRref
(F
2) = 0.1220, T = 273(2) K.
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Affiliation(s)
- Hua Huang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Wen-Wen Zhang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Kang He
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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12
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Zhang WW, Ye JH, Zou J, He K. Synthesis and crystal structure of 1-((3 R,10 S,13 R,17 S)-10,13-dimethyl-3- (phenylamino)hexadecahydro-1 H-cyclopenta[ α] phenanthren-17-yl)ethan-1-one, C 27H 39NO. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C27H39NO, orthorhombic, P212121 (no. 19), a = 10.5248(7) Å, b = 12.6248(7) Å, c = 16.8913(9) Å, V = 2244.4(2) Å3, Z = 4, Rgt
(F) = 0.0435, wRref
(F
2) = 0.1033, T = 173(2) K.
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Affiliation(s)
- Wen-Wen Zhang
- Guizhou University of Traditional Chinese Medicine , The Dongqing South Road , Guiyang 550025 , Guizhou Province , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , The Dongqing South Road , Guiyang 550025 , Guizhou Province , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , The Dongqing South Road , Guiyang 550025 , Guizhou Province , P. R. China
| | - Kang He
- Guizhou University of Traditional Chinese Medicine , The Dongqing South Road , Guiyang 550025 , Guizhou Province , P. R. China
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13
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Gu M, Li JX, Ye JH, Zou J, Liu YH. Crystal structure of 3,5,6,7-tetramethoxy-3′,4′-methylenedioxy-flavone, C 20H 18O 8. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C20H18O8, monoclinic, P21/c (no. 14), a = 7.3855(2) Å, b = 28.1424(9) Å, c = 8.5863(3) Å, β = 98.4040(10)°, V = 1765.46(10) Å3, Z = 4, R
gt
(F) = 0.0545, wR
ref
(F
2) = 0.1641, T = 273(2) K.
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Affiliation(s)
- Ming Gu
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Ji-Xin Li
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Ya-Hua Liu
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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14
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Ye JH, Li DM, Lyu T, Zhao WJ, Guo JJ, He J, Zhu BS. [Genetic analysis of a child with ectodermal dysplasia caused by variant of EDA gene]. Zhonghua Er Ke Za Zhi 2022; 60:834-835. [PMID: 35922200 DOI: 10.3760/cma.j.cn112140-20211201-01007] [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: 06/15/2023]
Affiliation(s)
- J H Ye
- Department of Medical Genetics, the First people's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology,Yunnan Provincial Clinical Medicine Research Center for Birth Defects and Rare Diseases, Kunming 650032, China
| | - D M Li
- Department of Medical Genetics, the First people's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology,Yunnan Provincial Clinical Medicine Research Center for Birth Defects and Rare Diseases, Kunming 650032, China
| | - T Lyu
- School of Medicine, Kunming University of Science and Technology, Kunming 650500, China
| | - W J Zhao
- Department of Medical Genetics, the First people's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology,Yunnan Provincial Clinical Medicine Research Center for Birth Defects and Rare Diseases, Kunming 650032, China
| | - J J Guo
- Department of Medical Genetics, the First people's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology,Yunnan Provincial Clinical Medicine Research Center for Birth Defects and Rare Diseases, Kunming 650032, China
| | - J He
- Department of Medical Genetics, the First people's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology,Yunnan Provincial Clinical Medicine Research Center for Birth Defects and Rare Diseases, Kunming 650032, China
| | - B S Zhu
- Department of Medical Genetics, the First people's Hospital of Yunnan Province, the Affiliated Hospital of Kunming University of Science and Technology,Yunnan Provincial Clinical Medicine Research Center for Birth Defects and Rare Diseases, Kunming 650032, China
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15
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Zhou Y, Zhu QH, Hou CX, Han W, Tang YT, Sun NN, Li HQ, Wang CX, Ye JH. [Anatomical characteristics of profunda artery perforator flap in the posteromedial femoral region and its application in the reconstruction of oral and maxillofacial defects]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:604-610. [PMID: 35692004 DOI: 10.3760/cma.j.cn112144-20220321-00122] [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: 06/15/2023]
Abstract
Objective: To investigate the anatomical basis for the preparation of the profunda artery perforator flap (PAPF) in the posteromedial femoral region and its application in the reconstruction of oral and maxillofacial defects. Methods: Six lower limbs of Chinese adult cadavers were micro-surgically dissected. CT angiography (CTA) data of bilateral lower limbs of 6 patients was also collected retrospectively. The number, external diameter, pedicle length, and distribution of perforators in the posteromedial femoral region were recorded from the specimens and CTA data. Meanwhile, 10 patients with oral squamous cell carcinoma in the Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University from August 2018 to June 2021 were treated with the PAPF. At each follow-up, contour and function of recipient and donor site, as well as swallowing and speech function were evaluated. Results: A total of 19 profunda artery perforator were identified in 6 lower limb specimens. The outer diameter at the beginning of the source artery was (2.34±0.25) mm and the total length of the pedicle was (11.12±1.06) cm. CTA data analysis of 12 legs identified 15 perforators of profunda artery in the posteromedial region. Eleven perforators were septocutaneous, including 2 perforators with a common trunk, while the remaining 4 perforators were musculocutaneous. As for different patterns of perforators (septocutaneous perforators, musculocutaneous perforators and perforators with a common trunk), the longitudinal distance to the pubic tubercle was (19.95±2.43), (21.84±2.54) and (19.48±0.55) cm respectively. The horizontal distance to the posterior edge of gracilis was (3.54±1.10), (3.72±0.30) and (3.85±1.48) cm, respectively. The initial diameters of perforators was (2.4±0.4), (2.6±0.6) and 1.9 mm respectively. Ten cases of the profunda artery perforator flaps survived successfully after operation. The flap sizes ranged from 8 cm×6 cm to 12 cm×7 cm. The patients were evaluated at 1, 3 and 6 months, and with 6 months interval ever since. During the follow-up, the shape of the recipient site was ideal, and the swallowing and language functions were not significantly affected. There was only linear scar in the donor area, and the function of the thigh was basically normal. Conclusions: PAPF possessed a good anatomic stability, suitable vascular pedicle length and diameter, minor influence to the donor area, sufficient amount tissue with good quality. It is an ideal choice for head and neck reconstruction.
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Affiliation(s)
- Y Zhou
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Q H Zhu
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - C X Hou
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - W Han
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - Y T Tang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - N N Sun
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - H Q Li
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - C X Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
| | - J H Ye
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University & Institute of Stomatology, Nanjing Medical University, Nanjing 210029, China
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16
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Xu CY, Dong MH, Ye JH, Zhao CL, Zou J, Zhang JJ. Crystal structure of a second modification of Pachypodol, C18H16O7. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2021-0490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C18H16O7, monoclinic, P21/c (no. 14), a = 7.3948(3) Å, b = 24.2947(9) Å, c = 17.3201(6) Å, β = 93.063(1)°, V = 3107.2(2) Å3, Z = 4, R
gt
(F) = 0.0427, wR
ref
(F
2) = 0.1241, T = 300(2) K.
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Affiliation(s)
- Chuan-Yan Xu
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Ming-Hong Dong
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Chen-Liang Zhao
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
| | - Jing-Jie Zhang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P. R. China
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17
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Wang SW, Ye JH, Liu YS, Sun YC, Ye HQ, Zhou YS. [Application and research progress of digital virtual simulated design in dental esthetic rehabilitation]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:101-106. [PMID: 35012259 DOI: 10.3760/cma.j.cn112144-20210408-00166] [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: 06/14/2023]
Abstract
In dental esthetic rehabilitation, patients pay great attention to the rehabilitative esthetic effect before teeth preparation, and this is also an important content of doctor-patient communication. Along with the development and combined application of intraoral scan, three-dimensional (3D) face scan, digital design, numerical control machining and 3D printing technology, digital technology is gradually applied to the virtual simulated design before irreversible operation in dental esthetic rehabilitation. Digital technology can be used in dentistry to simulate the esthetic outcome in advance, to assist communication among the dentists, patients and dental technicians, and to realize satisfactory outcome in the final restorations precisely, which, as a result, increases the clinical satisfaction. This review focuses on the application of digital virtual simulated design technology in dental esthetic rehabilitation, analyzes the current research development, deficiency and future prospects, so as to provide guidance for clinical diagnosis and treatment.
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Affiliation(s)
- S W Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - J H Ye
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y S Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y C Sun
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Q Ye
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y S Zhou
- Department of Prosthodontics, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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18
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He K, Zou J, Wang YX, Zhao CL, Ye JH, Zhang JJ, Pan LT, Zhang HJ. Rubesanolides F and G: Two Novel Lactone-Type Norditerpenoids from Isodon rubescens. Molecules 2021; 26:molecules26133865. [PMID: 34202760 PMCID: PMC8270274 DOI: 10.3390/molecules26133865] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/05/2022] Open
Abstract
A phytochemical investigation of the leaves of the medicinal plant Isodon rubescens led to the isolation of the two new degraded abietane lactone diterpenoids rubesanolides F (1) and G (2). Their structures were elucidated based on the analyses of the HRESIMS and 1D/2D NMR spectral data, and their absolute configurations were determined by ECD spectrum calculations and X-ray single crystal diffraction methods. Compounds 1 and 2, with a unique γ-lactone subgroup between C-8 and C-20, were found to form a carbonyl carbon at C-13 by removal of the isopropyl group in an abietane diterpene skeleton. Rubesanolide G (2) is a rare case of abietane that possesses a cis-fused configuration between rings B and C. The two isolates were evaluated for their biological activities against two cancer cell lines (A549 and HL60), three fungal strains (Candida alba, Aspergillus niger and Rhizopus nigricans) and three bacterial strains (Escherichia coli, Staphylococcus aureus and Bacillus subtilis).
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Affiliation(s)
- Kang He
- The Key Laboratory of Miao Medicine of Guizhou Province, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China; (K.H.); (J.Z.); (Y.-X.W.); (C.-L.Z.); (J.-H.Y.); (J.-J.Z.)
| | - Juan Zou
- The Key Laboratory of Miao Medicine of Guizhou Province, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China; (K.H.); (J.Z.); (Y.-X.W.); (C.-L.Z.); (J.-H.Y.); (J.-J.Z.)
| | - Yu-Xue Wang
- The Key Laboratory of Miao Medicine of Guizhou Province, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China; (K.H.); (J.Z.); (Y.-X.W.); (C.-L.Z.); (J.-H.Y.); (J.-J.Z.)
| | - Chen-Liang Zhao
- The Key Laboratory of Miao Medicine of Guizhou Province, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China; (K.H.); (J.Z.); (Y.-X.W.); (C.-L.Z.); (J.-H.Y.); (J.-J.Z.)
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Jiang-Hai Ye
- The Key Laboratory of Miao Medicine of Guizhou Province, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China; (K.H.); (J.Z.); (Y.-X.W.); (C.-L.Z.); (J.-H.Y.); (J.-J.Z.)
| | - Jing-Jie Zhang
- The Key Laboratory of Miao Medicine of Guizhou Province, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China; (K.H.); (J.Z.); (Y.-X.W.); (C.-L.Z.); (J.-H.Y.); (J.-J.Z.)
| | - Lu-Tai Pan
- The Key Laboratory of Miao Medicine of Guizhou Province, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China; (K.H.); (J.Z.); (Y.-X.W.); (C.-L.Z.); (J.-H.Y.); (J.-J.Z.)
- Correspondence: (L.-T.P.); (H.-J.Z.)
| | - Hong-Jie Zhang
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon, Hong Kong, China
- Correspondence: (L.-T.P.); (H.-J.Z.)
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19
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Dong MH, Ye JH, Zhao CL, Zhou L, Zou J, Zhang JJ. Crystal structure of isopimara-7,15-dien-3-one, C 20H 30O. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C20H30O, triclinic, P1̄ (no. 1), a = 6.6084(9) Å, b = 10.8811(16) Å, c = 12.0845(16) Å, α = 85.719(6)°, β = 79.547(5)°, γ = 89.903(5)°, V = 852.1(2) Å3, Z = 2, R
gt(F) = 0.0744, wR
ref(F
2) = 0.1953, T = 173(2) K.
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Affiliation(s)
- Ming-Hong Dong
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P.R. China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P.R. China
| | - Chen-Liang Zhao
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P.R. China
| | - Lang Zhou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025 , P.R. China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , The Dongqing South Road# , GuiYang City, Guizhou Province 550025, P.R. China
| | - Jing-Jie Zhang
- Guizhou University of Traditional Chinese Medicine , The Dongqing South Road# , GuiYang City, Guizhou Province 550025, P.R. China
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20
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He K, Wang YX, Ye JH, Zou J, Zhao W, Zhang JJ, Zhang JY. Crystal structure of octahydro-7a R,8′ R-dimethylspiro[isobenzofuran-4(1 H), 4′ (3′ H)-[1 H-7,9a]methanocyclohepta[ c]pyran]-1′,3, 9′ (3a H,4′a H)-trione, C 20H 26O 5. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C20H26O5, monoclinic, P21 (no. 4), a = 7.0011(5) Å, b = 12.3136(9) Å, c = 10.4847(8) Å, β = 105.734(2)°, V = 870.01(11) Å3, Z = 2, R
gt(F) = 0.0384, wR
ref(F
2) = 0.0925, T = 302(2) K.
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Affiliation(s)
- Kang He
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025, People’s Republic of China
| | - Yu-Xue Wang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025, People’s Republic of China
| | - Jiang-Hai Ye
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025, People’s Republic of China
| | - Juan Zou
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025, People’s Republic of China
| | - Wei Zhao
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025, People’s Republic of China
| | - Jing-Jie Zhang
- Guizhou University of Traditional Chinese Medicine , Guiyang 550025, People’s Republic of China
| | - Jin-Yi Zhang
- Guizhou University , Guiyang 550025 , People’s Republic of China
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21
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Dong WM, Lu JM, Zhu JG, Ye JH, Feng YF, He HC. [Activation of GPER inhibts proliferation and autophagy in prostatic epithelial cells]. Zhonghua Yi Xue Za Zhi 2019; 99:419-422. [PMID: 30786334 DOI: 10.3760/cma.j.issn.0376-2491.2019.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 effect of G protein-coupled estrogen receptor (GPER) on proliferation and autophagy in prostatic epithelial cells. Methods: Cell Counting Kit-8 (CCK8) assay was used to observe the growth of BPH-1 and RWPE-1 cells after treating with or not with estradiol or GPER selective agonist G1. Autophagy was quantified with Western blot and Cyto-ID autophagy detection kit after treating with estradiol, G1 or both G1 and G15 in the same cells. Results: The OD value in estrogen group and G1 group was significantly lower than those in control group (P<0.01). Compared with control group, Western blot and Cyto-ID green reagent staining revealed that the ratio of LC3Ⅱ/LC3Ⅰ and the relative fluorescence intensity of BPH-1 and RWPE-1 cells were decreased in G1 group and estradiol group (P<0.01). Pretreatment with G15 reversed the effect of G1 (P<0.05). Conclusion: The activation of GPER leads to the inhibition of autophagy and cell proliferation.
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Affiliation(s)
- W M Dong
- Department of Urology, the First Affiliated Hospital of Guangzhou Medical College, Guangdong Key Laboratory of Clinical Molecular Medicine and Molecular Diagnosis, Guangzhou 510180, China
| | - J M Lu
- Department of Urology, the First Affiliated Hospital of Guangzhou Medical College, Guangdong Key Laboratory of Clinical Molecular Medicine and Molecular Diagnosis, Guangzhou 510180, China
| | - J G Zhu
- Department of Urology, Guizhou Provincial People's Hospital, Guizhou 550002, China
| | - J H Ye
- Department of Urology, the First Affiliated Hospital of Guangzhou Medical College, Guangdong Key Laboratory of Clinical Molecular Medicine and Molecular Diagnosis, Guangzhou 510180, China
| | - Y F Feng
- Department of Urology, the First Affiliated Hospital of Guangzhou Medical College, Guangdong Key Laboratory of Clinical Molecular Medicine and Molecular Diagnosis, Guangzhou 510180, China
| | - H C He
- Department of Urology, the First Affiliated Hospital of Guangzhou Medical College, Guangdong Key Laboratory of Urology, Guangzhou 510230, China
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22
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Ye JH, Zhao CL, Zou J, He K, Teng CJ, Pan LT. Crystal structure of Ent-7 β,20-epoxy-kaur-16-en-1 β,6 α,7 α,14 α,15 α-pentaol-20-one, C 20H 30O 8. Z KRIST-NEW CRYST ST 2018. [DOI: 10.1515/ncrs-2018-0038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C20H30O8, monoclinic, C2 (no. 5), a = 21.684(13) Å, b = 7.275(4) Å, c = 14.320(9) Å, β = 118.975(11), V = 1976(2) Å3, Z = 4, R
gt(F) = 0.0362, wR
ref(F
2) = 0.0920, T = 298 K.
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Affiliation(s)
- Jiang-Hai Ye
- Guiyang college of traditional Chinese medicine , Guiyang, 550002 , People’s Republic of China
| | - Chen-Liang Zhao
- Guiyang college of traditional Chinese medicine , Guiyang, 550002 , People’s Republic of China
| | - Juan Zou
- Guiyang college of traditional Chinese medicine , Guiyang, 550002 , People’s Republic of China
| | - Kang He
- Guiyang college of traditional Chinese medicine , Guiyang, 550002 , People’s Republic of China
| | - Chao-Jie Teng
- Guiyang college of traditional Chinese medicine , Guiyang, 550002 , People’s Republic of China
| | - Lu-Tai Pan
- Guiyang college of traditional Chinese medicine , Guiyang, 550002 , People’s Republic of China
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23
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Cai XY, Lu Y, Tang C, Lin XJ, Ye JH, Li WN, He ZX, Li FF. [Effect of interleukin-6 promoter DNA methylation on the pathogenesis of systemic lupus erythematosus]. Zhonghua Yi Xue Za Zhi 2018; 97:1491-1495. [PMID: 28535641 DOI: 10.3760/cma.j.issn.0376-2491.2017.19.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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 analyze peripheral blood interleukin-6 (IL-6) promoter DNA methylation status and its clinical significance in patients with systemic lupus erythematosus (SLE). Methods: Blood samples of 41 adult patients with SLE and 20 healthy controls were collected.The methylation status of IL-6 promoter was determined by methylation specific polymerase chain reaction (MSP). The IL-6 expression was detected by real-time PCR.Correlations between IL-6 promoter methylation status and clinical features or laboratory findings in patients with SLE were analyzed. Results: The levels of IL-6 mRNA were significantly higher in peripheral blood of SLE.DNA methylation levels of IL-6 promoter were reduced in SLE patients as compared with healthy controls.The methylation status and expression of IL-6 in peripheral blood reflected the levels in peripheral blood mononuclear cells (PBMCs). Significantly positive correlation was found between IL-6 hypomethylation and renal disorder, as well as hypocomplementemia in patients with SLE. Conclusion: Hypomethylation of interleukin-6 promoter in peripheral blood might be involved in the etiology of SLE.
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Affiliation(s)
- X Y Cai
- Department of Rheumatology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou 510180, China
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24
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Huang ZZ, Zhang YC, Zheng Y, Guo YF, Ruan Y, Sun SY, Shi Y, Gao SN, Ye JH, Yan YJ, Wu K, Xu RF, Wu F. [Associations of obesity and physical activity with cognition in people aged 50 and above in Shanghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:273-279. [PMID: 29609238 DOI: 10.3760/cma.j.issn.0254-6450.2018.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the associations of obesity and physical activity with cognition in the elderly. Methods: A cross-sectional survey was conducted from October 2009 to June 2010 among people aged ≥50 years selected through multistage random cluster sampling in Shanghai. The subjects' body weight, body height, waist circumference and hip circumference were measured to calculate body mass index (BMI) and waist-hip ratio (WHR), and the data on self-reported physical activity level were collected through questionnaire survey. A comprehensive battery of cognitive tests was conducted to assess subjects' cognitive functions, including verbal recall, forward digit span (FDS), backward digit span (BDS), and verbal fluency (VF). General linear model was used to examine the associations of BMI, WHR and physical activity with cognition. Results: A total of 7 913 participants were included, with a median age of 60 years. Age, sex, education level, income level, BMI, WHR and physical activity level were significantly associated with cognitive scores in univariate analysis. After adjusted for age, sex, education level and income level, BMI was no longer significantly associated with cognitive scores in all cognitive functions (all P>0.01). WHR was significantly associated with VF score (P<0.01). Abdominally obese participants had lower VF score than non-abdominally obese participants (P<0.01). Physical activity level was significantly associated with all cognitive functions (P<0.01). Compared with participants with moderate physical activity level, participants with low physical activity level had lower scores in all cognitive functions (P<0.01). Conclusion: Abdominal obesity and low physical activity level were negatively associated with cognition level in the elderly, suggesting that waist circumference control and physical activity might help maintain cognition in the elderly.
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Affiliation(s)
- Z Z Huang
- Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y C Zhang
- Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y Zheng
- Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y F Guo
- Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y Ruan
- Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - S Y Sun
- Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y Shi
- Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - S N Gao
- Huangpu District Center for Disease Control and Prevention, Shanghai 200011, China
| | - J H Ye
- Hongkou District Center for Disease Control and Prevention, Shanghai 200437, China
| | - Y J Yan
- Minhang District Center for Disease Control and Prevention, Shanghai 201100, China
| | - K Wu
- Pudong District Center for Disease Control and Prevention, Shanghai 200136, China
| | - R F Xu
- Qingpu District Center for Disease Control and Prevention, Shanghai 201700, China
| | - F Wu
- Institute of Chronic and Non-communicable Diseases and Injury, Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
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25
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Wang FW, Shi J, Shi J, Yang JW, Wang ZH, Ye JH, Ye Y, Zheng HQ, Huang J. [The impact of weight management and related diuretic medication intervention based on body weight changes on cardiac function and re-hospitalization rate in patients with chronic congestive heart failure]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 45:874-879. [PMID: 29081178 DOI: 10.3760/cma.j.issn.0253-3758.2017.10.012] [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 explore the impact of weight management and related medication intervention based on body weight changes on cardiac function among patients with chronic congestive heart failure (CHF). Methods: Using prospective, randomized, controlled study methods, consecutive CHF patients, who hospitalized in our department from June 2014 to June 2016 (n=350), were randomly divided into intervention group (n=175) and control group (n=175). Patients in the intervention group received weight management guidance and the post discharge diuretic drugs regimen was adjusted based on body weight changes. The control group received routine medical care post discharge. Left ventricular ejection fraction (LVEF), B type natriuretic peptide precursor (NT-proBNP), 6 minutes walk distance and NYHA classification at one day before discharge and after 6 months were compared between the two groups respectively. Results: Follow-up visit data were not available from 6 patients in the control and intervention group respectively. NYHA classification, LVEF, NT-proBNP and 6 minutes walk distance were similar between the two groups at one day before discharge (all P>0.05). After 6 months, the LVEF and 6 minutes walk distance were significantly higher while NT-proBNP level was significantly lower in the intervention group compared to the control group (all P<0.01). Meanwhile, the LVEF and 6 minutes walk distance were significantly increased, while NT-proBNP was significantly reduced at 6 months post discharge compared to one day before discharge in the intervention group (all P<0.01). The LVEF was also significantly improved (P=0.035), but the NT-proBNP and 6 minutes walk distance were similar (P were 0.328 and 0.807 respectively) at 6 months after discharge compared to one day before discharge in the control group. The NYHA classification was significantly lower in intervention group and in control group at 6 months after discharge compared to one day before discharge (Z=5.154, P<0.01 and Z=10.497, P<0.01), and the NYHA classification improved more in the intervention group than in control group at 6 months after discharge (Z=9.235, P<0.01). The re-hospitalization rate of CHF patients in intervention group was 11.83% (20/169), which was significantly lower than the control group (33.14% (56/169), χ(2)=21.99, P<0.01). At 6 months follow up, body weight remained unchanged in the intervention group, while body weight tended to be higher in the control group compared to one day before discharge. Conclusion: The weight management and diuretic drug regimen adjudgment intervention based on body weight changes can improve cardiac function and reduced re-hospitalization rate in CHF patients.
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Affiliation(s)
- F W Wang
- Department of Cardiology, Guangming Hospital of Traditional Chinese Medicine, Shanghai 201300, China
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26
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Luo GY, Deng R, Zhang JJ, Ye JH, Pan LT. Two cytotoxic 6,7-seco-spiro-lacton-ent-kauranoids from Isodon rubescens. J Asian Nat Prod Res 2018; 20:227-233. [PMID: 28436701 DOI: 10.1080/10286020.2017.1317754] [Citation(s) in RCA: 2] [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: 02/12/2017] [Accepted: 04/05/2017] [Indexed: 06/07/2023]
Abstract
The present study was performed to investigate the chemical components of the branches and leaves of Isodon rubescens. Two 6,7-seco-spiro-lacton-ent-kauranoids were obtained. Based on the extensive spectroscopic analyses, their structures were elucidated as 6-epi-11-O-acetylangustifolin (1) and 11-O-acetylangustifolin (2), respectively. The structure of 2 was further comfirmed by X-ray crystallography analysis. MTT method was employed to evaluate their cytotoxity against human lung cancer cell lines A549 and leukemia cell lines K562.
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MESH Headings
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Diterpenes, Kaurane/chemistry
- Diterpenes, Kaurane/isolation & purification
- Diterpenes, Kaurane/pharmacology
- Drug Screening Assays, Antitumor
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Humans
- Isodon/chemistry
- Molecular Structure
- Nuclear Magnetic Resonance, Biomolecular
- Plant Leaves/chemistry
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Affiliation(s)
- Guo-Yong Luo
- a School of Pharmacy , Guiyang College of Traditional Chinese Medicine , Guiyang 550002 , China
| | - Rui Deng
- a School of Pharmacy , Guiyang College of Traditional Chinese Medicine , Guiyang 550002 , China
| | - Jing-Jie Zhang
- a School of Pharmacy , Guiyang College of Traditional Chinese Medicine , Guiyang 550002 , China
| | - Jiang-Hai Ye
- a School of Pharmacy , Guiyang College of Traditional Chinese Medicine , Guiyang 550002 , China
| | - Lu-Tai Pan
- a School of Pharmacy , Guiyang College of Traditional Chinese Medicine , Guiyang 550002 , China
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27
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Lv J, Ye JH, Yang LY, Zhao CL, Zhang JJ, Pan LT. Crystal structure of 7β,14β,15β-trihydroxy-1α-acetoxy-7α,20-epoxy- ent-kaurane, C 22H 32O 6. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C22H30O6, monoclinic, P21 (no. 14), a = 9.111(3) Å, b = 9.535(3) Å, c = 11.331(4) Å, β = 92.703(4)°, V = 983.3(5) Å3, Z = 2, R
gt
(F) = 0.0418, wR
ref
(F
2) = 0.1152, T = 293 K.
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Affiliation(s)
- Jun Lv
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Jiang-Hai Ye
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Li-Yong Yang
- Department of Chemistry , Guizhou Medical University , Guiyang 550004, P. R. China
| | - Chen-Liang Zhao
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Jing-Jie Zhang
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Lu-Tai Pan
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
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28
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Ye JH, Zhang JJ, Zhao CL, Zhang QL, Pan LT. Crystal structure of ent-1 β-acetoxy-7 α,14 α-di-hydroxy-7 β,20-epoxykaur-16-en-15-one, C 22H 30O 6. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C22H30O6, monoclinic, P21/c (no. 14), a = 11.1339(16) Å, b = 6.1262(9) Å, c = 14.771(2) Å, β = 103.567(5)°, V = 1867.9(12) Å3, Z = 2, R
gt
(F) = 0.0430, wR
ref
(F
2
) = 0.1165, T = 293 K.
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Affiliation(s)
- Jiang-Hai Ye
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Jing-Jie Zhang
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Chen-Liang Zhao
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Qi-Long Zhang
- Department of Chemistry , Guizhou Medical University , Guiyang 550004, P. R. China
| | - Lu-Tai Pan
- Guiyang College of Traditional Chinese Medicine, The ShiDong road 50#, GuiYang city, Guiyang 550002, P. R. China
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29
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Liu YH, Zhang JJ, Ye JH, Zhao CL, Pan LT. Crystal structure of 1 α,7 β-dihydroxy-11 β-acetoxy- ent-7 β,20-epoxykaur-16-en-15-one, C 22H 30O 6. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C22H30O6, orthorhombic, P212121 (no. 19), a = 5.979(4) Å, b = 16.735(12) Å, c = 20.323(15) Å, V = 2034(3) Å3, Z = 4, R
gt
(F) = 0.0498, wR
ref
(F
2
) = 0.1209, T = 293(2) K.
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Affiliation(s)
- Ya-Hua Liu
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Jing-Jie Zhang
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Jiang-Hai Ye
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Chen-Liang Zhao
- Guiyang College of Traditional Chinese Medicine, Guiyang 550002, P. R. China
| | - Lu-Tai Pan
- Guiyang College of Traditional Chinese Medicine, The ShiDong road 50#, GuiYang city, GuiZhou province, Guiyang 550002, P. R. China
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30
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Houle JD, Ye JH, Kane CJ. Axonal regeneration by chronically injured supraspinal neurons can be enhanced by exposure to insulin-like growth factor, basic fibroblast growth factor or transforming growth factor beta. Restor Neurol Neurosci 2012; 10:205-15. [PMID: 21551521 DOI: 10.3233/rnn-1996-10403] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
To test whether known growth factors could promote the regenerative reponse of chronically injured neurons, we exposed the injured adult rat spinal cord to insulin-like growth factor 1 (IGF-1), basic fibroblast growth factor (bFGF) or transforming growth factor beta 1 + 2 (TGFβs) 1 month after creation of a hemisection lesion. At 1 week later an autologous peripheral nerve graft was apposed to the rostral cavity wall and 1 month later Nuclear Yellow (NY) was used to retrogradely label neurons that had grown an axon into the graft. Neurons capable of axonal regeneration after a long term (5 weeks) injury were double labeled with True Blue (TB, provided at the time of hemisection lesion) and NY. Exposure to any of the three growth factors, compared to a PBS-treated control, resulted in a significant increase in the total number of regenerating supraspinal neurons, with the greatest increase after treatment with TGFβs. Treatment with TGFβs or bFGF led to a significant increase in the number of regenerating neurons in 6 out of 7 major regions (excluding the motor cortex) contributing to descending spinal pathways. Treatment with IGF-1 promoted significant regeneration only by reticular formation neurons. These results indicate that exposure to specific growth factors can enhance axonal regeneration by chronically injured neurons, thus overcoming one significant challenge to the repair of long standing structural damage to the spinal cord. © 1996 Elsevier Science Ireland Ltd. All rights reserved.
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Affiliation(s)
- J D Houle
- Department of Anatomy, University of Arkansas for Medical Sciences, 4301 W Markham St., Little Rock, AR 72205, USA
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31
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Feng X, Liu JJ, Zhou X, Song FH, Yang XY, Chen XS, Huang WQ, Zhou LH, Ye JH. Single sevoflurane exposure decreases neuronal nitric oxide synthase levels in the hippocampus of developing rats. Br J Anaesth 2012; 109:225-33. [PMID: 22535834 DOI: 10.1093/bja/aes121] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND The use of general anaesthetics in young children and infants has raised concerns regarding the adverse effects of these drugs on brain development. Sevoflurane might have harmful effects on the developing brain; however, these effects have not been well investigated. METHODS Postnatal day 7 (P7) Sprague-Dawley rats were continuously exposed to 2.3% sevoflurane for 6 h. We used the Fox battery test and Morris water maze (MWM) to examine subsequent neurobehavioural performance. Cleaved caspase-3 and neuronal nitric oxide synthase (nNOS) were quantified by immunoblotting, and the Nissl staining was used to observe the histopathological changes in the hippocampus. RESULTS A single 6 h sevoflurane exposure at P7 rats resulted in increased cleaved caspase-3 expression and decreased nNOS levels in the hippocampus, and induced the loss of pyramidal neurones in the CA1 and CA3 subfields of the hippocampus at P7-8. These changes were accompanied by temporal retardation of sensorimotor reflexes. However, neither the Fox battery test at P1-21 nor the MWM test at P28-32 showed differences between the air- and sevoflurane-treated groups. CONCLUSIONS Although early exposure to sevoflurane increases activated caspase-3 expression and neuronal loss and decreases nNOS in the neonatal hippocampus, it does not affect subsequent neurobehavioural performances in juvenile rats.
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Affiliation(s)
- X Feng
- Department of Anaesthesiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
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32
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Yan SG, Zhang J, Tu QS, Ye JH, Luo E, Schuler M, Kim MS, Griffin T, Zhao J, Duan XJ, Cochran DJ, Murray D, Yang PS, Chen J. Enhanced osseointegration of titanium implant through the local delivery of transcription factor SATB2. Biomaterials 2011; 32:8676-83. [PMID: 21862122 DOI: 10.1016/j.biomaterials.2011.07.072] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Accepted: 07/25/2011] [Indexed: 10/17/2022]
Abstract
Titanium implants are widely used in dentistry and orthopedic surgery. Nevertheless, bone regeneration around the implant is a relatively slow process, after placement. This study assessed whether SATB2 can enhance osseointegration of a titanium implant. To determine the effect of SATB2 in implant integration, two different viruses encoding SATB2 (PBABE-Satb2 virus or RCAS-Satb2 virus) were locally administered to the bone defect prior to titanium implant placement in our established transgenic TVA mice. Seven and 21 days post implantation, the femurs were isolated for quantitative real-time RT-PCR, H&E staining, immunohistochemical (IHC) staining, and microcomputed tomography (microCT) analysis. Quantitative real-time RT-PCR results demonstrated that the in vivo overexpression of SATB2 enhanced expression levels of potent osteogenic transcription factors and bone matrix proteins. We also found that 21 days after implantation, there were no significant differences in the expression levels of SATB2, Osx, Runx2, COLI, OC, and BSP between the RCAS-Satb2 group and the RCAS group. Histological analysis showed that SATB2 overexpression significantly enhanced new bone formation and bone-to-implant contact after implantation. IHC staining analysis revealed that forced expression of SATB2 increased the number of BSP-positive cells surrounding the implant. MicroCT analysis demonstrated that in vivo overexpression of SATB2 significantly increased the density of the newly formed bone surrounding the implant. These results conclude that in vivo overexpression of SATB2 significantly accelerates osseointegration of titanium implants and SATB2 can serve as a potent molecule in promoting tissue regeneration.
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Affiliation(s)
- S G Yan
- Division of Oral Biology, Department of General Dentistry, Tufts University School of Dental Medicine, 1 Kneeland Street, Boston, MA 02111, USA.
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Ye JH, Jin J, Liang HL, Lu JL, Du YY, Zheng XQ, Liang YR. Using tea stalk lignocellulose as an adsorbent for separating decaffeinated tea catechins. Bioresour Technol 2009; 100:622-628. [PMID: 18710802 DOI: 10.1016/j.biortech.2008.07.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2008] [Revised: 07/01/2008] [Accepted: 07/02/2008] [Indexed: 05/26/2023]
Abstract
Lignocelluloses prepared from woody tea stalk, pine sawdust and sugarcane bagasse were used as adsorbents to isolate decaffeinated catechins from tea extracts and compared with synthetic macroporous resin HPD 600. HPD 600 had the highest adsorption capacity to catechins, followed by tea stalk lignocellulose while lignocelluloses of pine sawdust and bagasse the least. Tea stalk lignocellulose absorbed preferentially tea catechins and showed a good selectivity. HPD 600 absorbed caffeine and tea catechins simultaneously. The kinetics data of tea stalk lignocellulose showed a good fit with the Langmuir isotherm model. It is considered that tea stalk lignocellulose is an alternative low-cost adsorbent for preparing decaffeinated tea catechins.
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Affiliation(s)
- J H Ye
- Zhejiang University, Tea Research Institute, 268 Kaixuan Road, Hangzhou 310029, China
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34
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Abstract
We investigated the differences in the retinal activity between normal and degenerate retina. Multi-electrode recordings were performed in in vitro mice retinas. Only short duration (<2 ms) retinal spikes were recorded in normal mice by postnatal day 28. However, in rd/rd mice, a slow wave component with approximately 100 ms duration was also recorded along with the spikes. We attempted to understand the mechanism of this slow wave component in degenerate retina by applying various synaptic blockers. With CNQX/AP-7, the glutamate antagonist (n = 7), the slow wave component disappeared while the normally less-dominant retinal spikes became more apparent. With strychnine, the glycine antagonist (n = 3) or picrotoxin, GABA antagonist (n = 3), the amplitude of the slow wave component increased. These suggest that a stronger excitatory glutamate input from bipolar cells to ganglion cells is the main contributor to this slow wave component in rd/rd mice.
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Affiliation(s)
- J H Ye
- Department of Physiology, Chungbuk National University School of Medicine, Cheongju, 361-763, Korea
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35
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Zhu L, Jiang ZL, Krnjević K, Wang FS, Ye JH. Genistein directly blocks glycine receptors of rat neurons freshly isolated from the ventral tegmental area. Neuropharmacology 2003; 45:270-80. [PMID: 12842133 DOI: 10.1016/s0028-3908(03)00151-5] [Citation(s) in RCA: 13] [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: 11/25/2022]
Abstract
The effects of tyrosine kinase inhibitors on the glycine-induced current (I(Gly)) were studied in rat neurons freshly isolated from the ventral tegmental area (VTA). Genistein reversibly and concentration-dependently depressed I(Gly), with an IC(50) of 13 microM. Preincubation with genistein had no effect on I(Gly), indicating that genistein is effective only when glycine is bound to the receptor and channels are most likely open. Genistein depressed maximum I(Gly) without significantly changing the EC(50) for glycine. Genistein-induced inhibition of I(Gly) was sensitive to membrane voltage, being greater at positive membrane potentials. A kinetic analysis indicated that genistein lengthens the time constant of I(Gly) activation, but has no effect on deactivation or desensitization. When genistein was rapidly washed out, a transient rebound current probably reflected a faster dissociation of genistein, with respect to glycine. Results of competition experiments suggest that genistein acts on the same region of the glycine receptor as picrotoxin. Daidzein, an analog of genistein that does not act on protein kinases, also inhibited I(Gly). Co-application of lavendustin A, a specific inhibitor of tyrosine kinase, had no effect on I(Gly). Our results extend to neurons isolated from the VTA, the previous finding that genistein directly inhibits glycine receptors of hypothalamic brain slices.
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Affiliation(s)
- L Zhu
- New Jersey Medical School (UMDNJ), Rutgers-UMDNJ Integrative Neuroscience Program, Department of Anesthesiology, 185, South Orange Avenue, Newark, NJ 07103-2714, USA
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Abstract
We demonstrated previously that ethanol depresses glycine-induced currents in 45% of neurons freshly isolated from the ventral tegmental area (VTA) of rats (), and that protein kinase C (PKC) modulates this action of ethanol (). In the present study, we investigated the time course of this effect of ethanol on VTA neurons from young rats. For 70% of the neurons in which ethanol reduced glycine-evoked currents, this depressant effect gradually diminished during continuous superfusion with ethanol. Its action decayed faster when ethanol was applied in several brief pulses than by continuous superfusion. On the other hand, the decay was especially slower when ethanol was applied in pulses at longer intervals or by preincubation. Phorbol ester 12,13-dibutyrate (PDBu, 1 microM), an activator of PKC, also depressed glycine-induced currents. In approximately 40% (6/15) of the neurons, the effect of PDBu diminished with time and was antagonized by the specific PKC inhibitor, chelerythrine (7 microM). Chelerythrine also attenuated the ethanol-induced depression of glycine-induced currents and its time-dependent decay, thus confirming our previous evidence that PKC mediates, at least in part, the decay of the depressant effect of ethanol on glycine-induced currents of VTA neurons.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, New Jersey Medical School (UMDNJ), 185 South Orange Avenue, Newark 07103-2714, USA.
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Ye JH, Tao L, Zhu L, Krnjević K, McArdle JJ. Ethanol inhibition of glycine-activated responses in neurons of ventral tegmental area of neonatal rats. J Neurophysiol 2001; 86:2426-34. [PMID: 11698532 DOI: 10.1152/jn.2001.86.5.2426] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [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: 11/22/2022] Open
Abstract
The brain is particularly sensitive to alcohol during the period of its rapid growth. To better understand the mechanism(s) involved, we studied ethanol effects on glycine-activated responses of ventral tegmental area (VTA) neurons isolated from the newborn rat, using whole cell and gramicidin perforated patch-clamp techniques. Previously we reported that 0.1-40 mM ethanol enhances glycine-induced responses of 35% of VTA neurons. We now direct our attention to the inhibitory effects of ethanol observed in 45% (312 of 694) of neonatal VTA neurons. Under current-clamp conditions, 1 mM ethanol had no effect on the membrane potential of these cells, but it decreased glycine-induced membrane depolarization and the frequency of spontaneous action potentials. Under voltage-clamp conditions, 0.1-10 mM ethanol did not elicit a current but depressed the glycine-induced currents. The ethanol-induced inhibition of glycine current was independent of membrane potential (between -60 and +60 mV). Likewise, ethanol did not alter the reversal potential of the glycine-activated currents. Ethanol-mediated inhibition of glycine current depended on the glycine concentration. While ethanol strongly depressed currents activated by 30 microM glycine, it had no appreciable effect on maximal currents activated by 1 mM glycine. In the presence of ethanol (1 mM), the EC(50) for glycine increased from 32 +/- 5 to 60 +/- 3 microM. Thus ethanol may decrease the agonist affinity of glycine receptors. A kinetic analysis indicated that ethanol shortens the time constant of glycine current deactivation but has no effect on activation. In conclusion, by altering VTA neuronal function, ethanol-induced changes in glycine receptors may contribute to neurobehavioral manifestations of the fetal alcohol syndrome.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, New Jersey Medical School, Newark, New Jersey 07103-2714, USA.
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Abstract
Ondansetron is a selective 5-hydroxytryptamine(3) (5-HT(3)) receptor antagonist that has been introduced to clinical practice as an antiemetic for cancer treatment-induced and anesthesia-related nausea and vomiting. Its use under these circumstances is both prophylactic and therapeutic. It has a superior efficacy, safety and pharmacoeconomic profile compared with other groups of antiemetics, namely antidopaminergics, antihistamines and anticholinergics. However, its place in the management of anticipatory and delayed vomiting in cancer treatment and as a rescue antiemetic in surgical patients needs to be further explored. Furthermore, recent animal and human research also reflects its possible novel application in the treatment of other disease states, such as alcoholism, cocaine addiction, opioid withdrawal syndrome, anxiety disorders, gastrointestinal motility disorders, Tourette's syndrome and pruritus. This review revisits the widespread physiological and pathological effects of 5-HT and discusses both the basic science literature and the clinical developments responsible for the conventional and novel uses of ondansetron. In addition, new discoveries relating to the effects of ondansetron on other receptors/channels and their possible therapeutic applications are presented.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, UMDNJ-New Jersey Medical School, 185 South Orange Avenue, Newark, NJ 07103, USA.
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Abstract
Interleukin (IL)-2 is a brain-derived cytokine that influences mesocorticolimbic dopamine release, and is associated with pathological outcomes that are mediated, at least in part, by aberrations in mesolimbic neurotransmission. The mechanisms by which IL-2 modulates mesolimbic transmission, however, are not known. The NMDA receptor/channel (NMDAR) plays an essential role in neuronal excitability of mesolimbic neurons; we thus examined in neonatal rats the effects of IL-2 on NMDA-activated current (I(NMDA)) in voltage-clamped neurons freshly isolated from the ventral tegmental area (VTA), the site of origin of the mesolimbic system. IL-2 (0.01-500 ng/ml) alone had no effect on membrane conductance. When co-applied with NMDA, IL-2 (50-500 ng/ml) significantly potentiated I(NMDA). In contrast, doses as low as 0.01 ng/ml markedly decreased the NMDA response. Dose-response analysis showed that IL-2 ( > 50 ng/ml) increased the maximal I(NMDA), without changing the EC(50), indicating that IL-2 potentiates I(NMDA) by increasing the efficacy of the NMDAR. Moreover, current-voltage analysis revealed that IL-2 potentiation of I(NMDA) was voltage-dependent, being greater at negative potentials. In contrast, IL-2 inhibition of I(NMDA) was voltage-independent, and IL-2 did not alter the reversal potential. Additionally, IL-2 (1 ng/ml) shifted the NMDA concentration-response curve to the right, significantly increasing the EC(50) for NMDA without changing the maximal I(NMDA), suggesting that IL-2 inhibits the NMDAR by a competitive mechanism. IL-2 thus acts as a potent modulator of the NMDAR. IL-2-induced alterations of responses to NMDAR activation may contribute to synaptic plasticity in the mesolimbic system and to pathological outcomes associated with this system.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, New Jersey Medical School (UMDNJ), Newark, NJ 07103-2714, USA.
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40
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Ye JH, Tao L, Ren J, Schaefer R, Krnjevic K, Liu PL, Schiller DA, McArdle JJ. Ethanol potentiation of glycine-induced responses in dissociated neurons of rat ventral tegmental area. J Pharmacol Exp Ther 2001; 296:77-83. [PMID: 11123365] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
The potentiation of glycine-induced responses by ethanol (EtOH) was studied in neurons freshly dissociated from the ventral tegmental area (VTA) of 5- to 14-day-old postnatal rats using whole-cell and gramicidin-perforated patch-clamp techniques. Under current-clamp conditions, EtOH increased glycine-induced membrane depolarization and action potential firing. Under voltage-clamp conditions, EtOH (0. 1-40 mM) alone did not elicit a current. When coapplied with glycine, EtOH enhanced the glycine-induced current in 35% (180 of 474) of the neurons. The EtOH-induced enhancement of glycine current was independent of membrane potential (between -60 and +60 mV); the reversal potential was not changed. Concentration-response analysis showed that in the presence of EtOH (10 mM), the EC(50) for glycine decreased from 25 +/- 4 to 14 +/- 3 microM; the Hill coefficient increased from 1.5 +/- 0.2 to 1.9 +/- 0.3. Kinetic analysis of glycine currents indicated that EtOH decreased the time constant of activation and increased the time constant of deactivation of glycine-gated chloride channels. EtOH may accelerate glycine association with its receptor at the agonist binding site and increase the apparent agonist affinity. Our observations suggest that, at pharmacologically relevant concentrations, EtOH alters the function of glycine receptors and thus the excitability of neonatal VTA neurons. This action of EtOH may contribute to the neurobehavioral disturbances associated with fetal alcohol syndrome.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, New Jersey Medical School, Newark, New Jersey 07103-2714, USA.
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41
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Abstract
Axonal regeneration by chronically-injured supraspinal neurons can be enhanced by neurotrophic factor treatment at the site of injury, although the number of regenerating neurons decreases as the interval between spinal cord injury and treatment increases. This study investigated whether this decline in regenerative response could be due to continued loss of neurons during the post-injury period. Adult rats received a cervical hemisection lesion and axotomized neurons were labeled by retrograde transport of True Blue from the lesion site. Animals were killed one, four or eight weeks after injury and surviving neurons (True Blue-labeled) were counted in the red nucleus and lateral vestibular nucleus. The neuron number in the lateral vestibular nucleus was stable for eight weeks after spinal cord injury, while survival in the red nucleus decreased by 25% between four and eight weeks. To test how neurons respond to a second injury with or without trophic factor treatment, at four, eight, 14 or 22 weeks after injury the lesion cavity was enlarged by 0.5 mm in a rostral direction. Gel foam saturated with ciliary neurotrophic factor, brain-derived neurotrophic factor or basic fibroblast growth factor was placed into the cavity. Animals were killed four weeks later. Re-injury of the spinal cord caused a significant decrease in neuron survival in both the red nucleus and lateral vestibular nucleus, the effects of which were lessened by treatment with ciliary neurotrophic factor or brain-derived neurotrophic factor for the red nucleus and with ciliary neurotrophic factor for the lateral vestibular nucleus, when re-injured at four or eight weeks. Basic fibroblast growth factor did not affect neuron survival at any time post-injury. Ciliary neurotrophic factor was not effective with longer delays (14 or 22 weeks) between the initial injury and re-injury. These results indicate a delayed pattern of secondary neuronal cell loss after spinal cord injury that is exaggerated by re-injury, but which can be ameliorated by treatment with neurotrophic factors.
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Affiliation(s)
- J D Houle
- Department of Anatomy, University of Arkansas for Medical Sciences, Little Rock 72205, USA.
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Abstract
The effect of Waglerin-1, a 22-amino acid peptide purified from the venom of Wagler's pit viper on the whole cell current response (I(GABA)) to gamma-aminobutyric acid (GABA) was examined for neurons freshly isolated from the nucleus accumbens of 3- to 7-day-old rats. Waglerin-1 depressed I(GABA) induced by subsaturating concentrations of GABA; the IC(50) for I(GABA) induced by 10 microM GABA was 2.5 microM Waglerin-1. This concentration of Waglerin-1 shifted the GABA concentration-response curve to the right in a parallel manner, increasing the GABA EC(50) from 12+/-3 to 27+/-5 microM. The depressant effect of Waglerin-1 was greater at negative holding potentials. Zn(2+) also inhibited I(GABA) with an IC(50) of 0.3 microM. Phosphorylation state appeared to modulate GABA(A) receptor sensitivity to the inhibitory effect of Waglerin-1 since dialysis of neurons with N-[2-((p-bromocinnamyl)amino)ethyl]-5-isoquinolinesulfonamide HCl (H-89), an inhibitor of protein kinase A, prevented inhibition. The data are discussed in terms of developmental influences on the subunit composition of GABA(A) receptors in neurons of the nucleus accumbens.
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Affiliation(s)
- J H Ye
- Departments of Anesthesiology, and Pharmacology and Physiology, New Jersey Medical School (UMDNJ), 185 South Orange Avenue, Newark, NJ 07103-2714, USA
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Ye JH, Schaefer R, Wu WH, Liu PL, Zbuzek VK, Mcardle JJ. Inhibitory effect of ondansetron on glycine response of dissociated rat hippocampal neurons. J Pharmacol Exp Ther 1999; 290:104-11. [PMID: 10381765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
Abstract
We examined the effect of ondansetron, an antagonist of type 3 serotonin receptors, on the whole cell response of freshly isolated hippocampal CA1 pyramidal neurons of neonatal and "mature" rats to glycine using the gramicidin perforated patch technique. Ondansetron depressed the current induced by subsaturating concentrations of glycine (IGly) in a concentration-dependent manner. The ondansetron concentration needed to depress IGly induced by 30 microM glycine to half amplitude was 25 microM. Ondansetron (54 microM) shifted the glycine concentration-response curve to the right in a parallel manner, increasing the EC50 for glycine from 40 +/- 3 microM to 70 +/- 5 microM. Ondansetron increased the time constant of activation of IGly without affecting the time constant of deactivation. When examined under current clamp conditions, glycine induced depolarization and hyperpolarization in neonatal and mature neurons, respectively; ondansetron also suppressed these responses to glycine. The data suggest that ondansetron competitively inhibits the glycine receptor.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, New Jersey Medical School, Newark, New Jersey, USA.
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Ye JH, Ren J, Krnjević K, Liu PL, McArdle JJ. Cocaine and lidocaine have additive inhibitory effects on the GABAA current of acutely dissociated hippocampal pyramidal neurons. Brain Res 1999; 821:26-32. [PMID: 10064784 DOI: 10.1016/s0006-8993(98)01372-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [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: 11/21/2022]
Abstract
Inhibition mediated by gamma-aminobutyric acid (GABA) is a major target for the central actions of cocaine and lidocaine, which can result in seizures, especially when these drugs are abused in combination. In the present study, we investigated how cocaine and lidocaine interact to depress GABA current (IGABA), recorded by the whole-cell technique in freshly isolated rat hippocampal neurons. Cocaine depressed IGABA in a concentration dependent manner, such that cocaine was more potent against lower than higher GABA concentrations: the cocaine IC50 was 0.13, 0.62 and 1.2 mM for GABA at 2, 10 and 100 microM, respectively. Cocaine depressed IGABA to the same extent in the absence and presence of 1 microM tetrodotoxin, indicating that cocaine inhibition of IGABA is distinct from its Na+ channel blocking action. Lidocaine reversibly depressed IGABA evoked by 10 microM GABA, with an IC50 of 9.8 mM. In the presence of 3 mM lidocaine, 0.3 mM cocaine depressed IGABA (10 microM GABA) to 30+/-7%. The significantly greater depression by the combined agents (p<0.05) indicates additive effects on the GABA receptor/channel complex, which are likely to contribute to the additive convulsant effects noted when these drugs are abused in combination.
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Affiliation(s)
- J H Ye
- Departments of Anesthesiology and Pharmacology and Physiology, New Jersey Medical School (UMDNJ), 185 South Orange Avenue, Newark, NJ 07103-2714, USA.
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Abstract
The effects of cocaine on glycine-induced Cl- current (I(GLY)) of single neurons, freshly isolated from the rat hippocampal CA1 area, were studied with conventional whole-cell recording under voltage-clamp conditions. Cocaine depressed I(GLY) in a concentration-dependent manner, with an IC50 of 0.78 mM. Preincubation with 1 mM cocaine alone had no effect on I(GLY), suggesting that resting glycine channels are insensitive to cocaine. The depression of I(GLY) by cocaine was independent of membrane voltage. Internal cell dialysis with 1 mM cocaine failed to modify I(GLY). Because the depression of I(GLY) was noncompetitive, cocaine may act on the glycine receptor-chloride ionophore complex at a site distinct from that to which glycine binds. The cocaine suppression of I(GLY) was unaffected by 1 microM tetrodotoxin and 1 microM strychnine. Blockers of protein kinase C (Chelerythrine), kinase A (N-[2-((p-bromocinnamyl)amino)ethyl]-5-isoquinolinesulfonamide HCl, (H-89)) and Ca-calmodulin-dependent kinase (1-[N,O-bis(5-isoquinoline-sulfonyl)-N-methyl-L-tyrosyl]-4-phenylpiperaz ine (KN-62)) were also ineffective, which suggests that these phosphorylating mechanisms do not modulate cocaine-induced suppressant action on I(GLY). This extracellular, strychnine-independent depression of I(GLY) may contribute to cocaine-induced seizures.
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Affiliation(s)
- J Ren
- Department of Anesthesiology, New Jersey Medical School (UMDNJ), Newark 07103-2714, USA
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Ren J, Ye JH, McArdle JJ. cAMP-dependent protein kinase modulation of glycine-activated chloride current in neurons freshly isolated from rat ventral tegmental area. Brain Res 1998; 811:71-8. [PMID: 9804898 DOI: 10.1016/s0006-8993(98)00959-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [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: 11/24/2022]
Abstract
Adenosine 3',5'cyclic monophosphate-(cAMP)-dependent protein kinase (PKA) modulation of glycine-activated Cl- currents (IGly) in single neurons freshly isolated from the rat ventral tegmental area (VTA) was studied using whole-cell patch-clamp technique. In the majority of cells tested with Mg-ATP in the internal solution, IGly induced by 3-10 microM glycine increased spontaneously (ran up). In the absence of internal ATP, IGly remained stable in six of seven cells. External perfusion of 8-Br-cAMP, a PKA activator, potentiated IGly only in cells showing run-up. 8-Br-cAMP potentiated IGly induced by low concentrations of glycine, but had no effect on the maximal current. When added to the pipette solution, H-89, a PKA inhibitor, blocked ATP and 8-Br-cAMP induced run-up of IGly. In contrast, dialysis with chelerythrine, a PKC inhibitor, did not alter the run-up of IGly. These results suggest that the PKA pathway modulates the activity of the glycine receptor/channel complex via enhancing the affinity of the receptor for glycine.
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Affiliation(s)
- J Ren
- Departments of Anesthesiology and Pharmacology and Physiology, New Jersey Medical School (UMDNJ), 185 South Orange Avenue, Newark, NJ 07103-2714, USA
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47
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Abstract
Properties of whole-cell glycine currents (IGly) of ventral tegmental area (VTA) neurons from 3- to 7-day old Sprague-Dawley rats were investigated with the patch-clamp technique. Ninety-three percent of the 126 neurons examined produced IGly in response to glycine. For 70% of these neurons, IGly did not decay in response to a threshold concentration of glycine (1-5 microM). At elevated glycine concentrations, IGly consistently decayed from a peak to a steady state (SS). IGly increased in amplitude sigmoidally as a function of the concentration of agonist with an EC50 of 32 microM. Strychnine (STR), when co-applied with glycine after a prepulse of STR, suppressed both the peak and SS IGly noncompetitively. In the absence of a prepulse, STR had a smaller effect on peak IGly while increasing its decay rate; the SS amplitude decreased. These STR effects were concentration dependent with an IC50 of 31 nM and 184 nM STR for the peak and SS IGly, with prepulse, respectively, and 732 nM and 193 nM for the peak and SS IGly, respectively, without prepulse. Picrotoxin (PTX) co-applied with glycine suppressed both the peak and the SS IGly with an IC50 of 25 microM. In contrast to STR, 1 min preincubation with PTX had no effect on IGly. Thus, PTX acts on the open channel. The inhibitory effects of both STR and PTX on IGly did not depend on the membrane potential.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, New Jersey Medical School (UMDNJ), Newark 07103-2714, USA.
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Horvat JC, Affane-Boulaid F, Baillet-Derbin C, Davarpanah Y, Destombes J, Duchossoy Y, Emery E, Kassar-Duchossoy L, Mira JC, Moissonnier P, Pécot-Dechavassine M, Reviron T, Rhrich-Haddout F, Tadié M, Ye JH. [Post-traumatic reconnection of the cervical spinal cord with skeletal striated muscles. Study in adult rats and marmosets]. C R Seances Soc Biol Fil 1998; 191:717-29. [PMID: 9587481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In an attempt at repairing the injured spinal cord of adult mammals (rat, dog and marmoset) and its damaged muscular connections, we are currently using: 1) peripheral nerve autografts (PNG), containing Schwann cells, to trigger and direct axonal regrowth from host and/or transplanted motoneurons towards denervated muscular targets; 2) foetal spinal cord transplants to replace lost neurons. In adult rats and marmosets, a PNG bridge was used to joint the injured cervical spinal cord to a denervated skeletal muscle (longissimus atlantis [rat] or biceps brachii [rat and marmoset]). The spinal lesion was obtained by the implantation procedure of the PNG. After a post-operative delay ranging from 2 to 22 months, the animals were checked electrophysiologically for functional muscular reconnection and processed for a morphological study including retrograde axonal tracing (HRP, Fast Blue, True Blue), histochemistry (AChE, ATPase), immunocytochemistry (ChAT) and EM. It was thus demonstrated that host motoneurons of the cervical enlargement could extend axons all the way through the PNG bridge as: a) in anaesthetized animals, contraction of the reconnected muscle could be obtained by electrical stimulation of the grafted nerve; b) the retrograde axonal tracing studies indicated that a great number of host cervical neurons extended axons into the PNG bridge up to the muscle; c) many of them were assumed to be motoneurons (double labelling with True Blue and an antibody against ChAT); and even alpha-motoneurons (type C axosomatic synapses in HRP labelled neurons seen in EM in the rat); d) numerous ectopic endplates were seen around the intramuscular tip of the PNG. In larger (cavitation) spinal lesions (rat), foetal motoneurons contained in E14 spinal cord transplants could similarly grow axons through PNG bridges up to the reconnected muscle. Taking all these data into account, it can be concluded that neural transplants are interesting tools for evaluating both the plasticity and the repair capacities of the mammalian spinal cord and of its muscular connections.
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Affiliation(s)
- J C Horvat
- Laboratoire de Neurobiologie, URA CNRS 1448, Université Paris V-René-Descartes
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Abstract
UNLABELLED The purpose of this study was to determine whether ondansetron (OND) has local anesthetic effects. Using a patch-clamp technique, we showed that OND concentration dependently blocked Na channel currents in freshly isolated neurons of rat brains with a 50% inhibition concentration of 12 microM. The blockade started immediately when OND was applied to the cell body using a fast perfusion system, reached a plateau within 15 s, and recovered to the control level within 30 s after washout of the OND-containing solution. Because this is a known property of local anesthetics, we used the tail-flick technique to verify this effect in vivo in Sprague-Dawley rats (n = 46). OND was injected subcutaneously into the tail at the doses of 0.08, 0.16, and 0.2 mg. The tail-flick latency increased 2 min after OND injection, reaching the plateau within 5 min. This effect was dose-related, lasting from 10 to 25 min. These preliminary data indicate that OND, a selective 5-HT3 receptor antagonist, might serve as a prototype molecule for development of a novel series of local anesthetics. IMPLICATIONS Ondansetron is a drug used to prevent vomiting, especially in cancer patients after chemotherapy. We found that it also causes numbness when injected under the skin. This new action may contribute to its role in "calming the stomach." We studied the effect of ondansetron on the isolated brain cells of live rats.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, University of Medicine and Dentistry of New Jersey, Newark 07103-2714, USA.
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Abstract
We examined the effect of ondansetron, a 5-HT3 receptor antagonist, on the whole cell current response of freshly isolated hypothalamic and hippocampal neurons of rats to gamma-aminobutyric acid (GABA). The nystatin perforated patch technique was used to minimize run-down of the GABA current. While 1-150 microM ondansetron had no effect on membrane conductance, co-application with agonist reversibly depressed the maximal end GABA current. The concentration-response relation of GABA reveals a non-competitive mechanism. However, the inhibitory effect was more potent when ondansetron was co-applied with lower concentrations of GABA: i.e., the ondansetron concentration needed to depress the current induced by 5 microM GABA to half amplitude was 7 microM compared to 28 microM for the current induced by 10 microM GABA. Analysis of the current-voltage relationship with and without ondansetron indicated that the effect of ondansetron is not voltage dependent. Current-voltage relations also showed that the effect of ondansetron was not due to activation of a GABA-independent current because the reversal potentials were the same with and without ondansetron. The present data suggest that ondansetron's suppression of GABA-activated current may be the molecular basis of ondansetron-induced seizures observed in vivo.
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Affiliation(s)
- J H Ye
- Department of Anesthesiology, New Jersey Medical School (UMDNJ), Newark 07103-2714, USA.
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