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Wu Q, Hu RX, Han YR, Zhu Q, Zhang WJ, Chen J, Zhang F, Zhang CL, Cao ZY. Four new alkaloids from the roots of Dactylicapnos scandens. J Asian Nat Prod Res 2024; 26:248-258. [PMID: 37905564 DOI: 10.1080/10286020.2023.2273814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/18/2023] [Indexed: 11/02/2023]
Abstract
Four new alkaloids (1 - 4), together with five known ones (5 - 9), were isolated from the bulbs of Dactylicapnos scandens. The structures were determined by analysis of their spectroscopic data and quantum-chemical calculations. All the isolates were tested for their ability to modulate neuronal Ca2+ mobilization in primary cultured neocortical neurons. Compound 8 inhibited spontaneous Ca2+ oscillations at low micromolar concentrations.
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Affiliation(s)
- Qian Wu
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ruo-Xi Hu
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yan-Ru Han
- Henan Privince Hospital of Traditional Chinese Medicine, Zhengzhou 450053, China
| | - Qian Zhu
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Wan-Jin Zhang
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Juan Chen
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Fan Zhang
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Chun-Lei Zhang
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zheng-Yu Cao
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
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2
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Wang HL, Li R, Zhao M, Wang ZY, Tang H, Cao ZY, Zheng GL, Zhang W. A Drimane Meroterpenoid Borate as a Synchronous Ca + Oscillation Inhibitor from the Coral-Associated Fungus Alternaria sp. ZH-15. J Nat Prod 2023; 86:429-433. [PMID: 36729068 DOI: 10.1021/acs.jnatprod.2c01028] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Territrem F (1), a drimane meroterpenoid bearing a unique borate ring system, was isolated together with its diol precursor territrem B (2) from the fungus Alternaria sp. ZH-15 associated with the soft coral Lobophytum crassum collected in the South China Sea. The structure of the new compound was elucidated by spectroscopic analysis and an X-ray single-crystal diffraction study, representing a new type of boron-containing natural product. Both compounds significantly inhibited spontaneous synchronous Ca2+ oscillations (SCOs) and epileptic discharges induced by 4-aminopyridine, showing the potential for antiepileptic drug research. The 5,9-boronic ester derivative of 2 did not change its SCO inhibitory activity.
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Affiliation(s)
- Hong-Liang Wang
- School of Pharmacy, Navy Medical University, 325 Guo-He Road, Shanghai 200433, People's Republic of China
| | - Ran Li
- School of Pharmacy, Navy Medical University, 325 Guo-He Road, Shanghai 200433, People's Republic of China
| | - Min Zhao
- Tongji University School of Medicine, 1239 Si-Ping Road, Shanghai 200092, People's Republic of China
| | - Zeng-Yiyi Wang
- Tongji University School of Medicine, 1239 Si-Ping Road, Shanghai 200092, People's Republic of China
| | - Hua Tang
- Institute of Translational Medicine, Shanghai University, 99 Shang-Da Road, Shanghai 200444, People's Republic of China
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines and Department of TCM Pharmacology, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Zhong-Yang Road, Nanjing 211198, People's Republic of China
| | - Gui-Liang Zheng
- Department of Otorhinolaryngology, Head and Neck Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kong-Jiang Road, Shanghai 200092, People's Republic of China
| | - Wen Zhang
- School of Pharmacy, Navy Medical University, 325 Guo-He Road, Shanghai 200433, People's Republic of China
- Tongji University School of Medicine, 1239 Si-Ping Road, Shanghai 200092, People's Republic of China
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3
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Fan QJ, Zhou GZ, Xi CC, Niu B, Cao YG, Zhang F, Naman CB, Zhang CL, Cao ZY. Polysubstituted Cyclopentene Benzamides and Dianthramide Alkaloids from Delphinium anthriscifolium Hance. J Nat Prod 2022; 85:1157-1166. [PMID: 35385291 DOI: 10.1021/acs.jnatprod.2c00107] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Thirteen new benzamide alkaloids, delphiniumines A-M (1-13), together with one known analogue (14), were isolated from Delphinium anthriscifolium Hance. All of the structures were determined by spectroscopic and spectrometric analyses. Absolute configuration for 1 was established using experimental and calculated ECD data, as well as by X-ray crystallography analysis. Compound 1 possesses a previously undescribed polysubstituted cyclopentene carbon framework. Compound 2 was isolated as an artifact from 1 during the extraction process. Compound 7 is glycosylated with a β-D-glucose unit. Compound 13 bears a chlorine substituent. At a concentration of 10 μM, compounds 6, 8, and 10-12 suppressed LPS-induced NO production in RAW264.7 cells with inhibition rates ranging from 40.3% to 78.8%.
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Affiliation(s)
- Qi-Jing Fan
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Gang-Zhong Zhou
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Chu-Chu Xi
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Bo Niu
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Yan-Gang Cao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China
- Co-Construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P. R. China, Zhengzhou 450046, People's Republic of China
| | - Fan Zhang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - C Benjamin Naman
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315800, People's Republic of China
| | - Chun-Lei Zhang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
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Zhang CL, Liu J, Xi CC, Cao YG, He J, Li SC, Zhang F, Naman CB, Cao ZY. Cadinane Sesquiterpenoids and Their Glycosides from Alangium chinense That Inhibit Spontaneous Calcium Oscillations. J Nat Prod 2022; 85:599-606. [PMID: 34957832 DOI: 10.1021/acs.jnatprod.1c00978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nine new cadinane sesquiterpenoids, alanenses A-I (1-9), were isolated from the leaves of Alangium chinense together with three previously reported analogues (10-12). The structures of these molecules were elucidated by interpretation of spectroscopic and spectrometric data. Absolute configurations were established by the comparison of experimental and calculated ECD data, chemical degradation studies for sugar moieties, and a single-crystal X-ray diffraction analysis. Compounds 1 and 2 were isolated as racemates, and enantiopurification was achieved by chiral HPLC. Compounds 3-5 are glycosylated cadinanes bearing a β-d-glucose unit, while compounds 6-9 incorporate a hydroxymethyl group in either the free form or additional ring fusion. The structure of compound 11 was originally misassigned and later revised using additional NMR data. The corrected structure is here supported by X-ray single-crystal analysis. Compounds 1 and 2 inhibit spontaneous calcium channel oscillations at low micromolar concentrations.
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Affiliation(s)
- Chun-Lei Zhang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Ju Liu
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Chu-Chu Xi
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Yan-Gang Cao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, People's Republic of China
- Co-Construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P. R. China, Zhengzhou 450046, People's Republic of China
| | - Jing He
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Shu-Cong Li
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Fan Zhang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - C Benjamin Naman
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences, Ningbo University, Ningbo 315800, People's Republic of China
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
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Sun PT, Cao YG, Xue GM, Li M, Zhang CL, Zhao F, Cao ZY, Wang D, Gustafson KR, Zheng XK, Feng WS, Chen H. Hypeisoxazole A, a Racemic Pair of Tetrahydroisoxazole-Fused Benzylisoquinoline Alkaloids from Hypecoum erectum and Structural Revision of Hypecoleptopine. Org Lett 2022; 24:1476-1480. [PMID: 35147434 PMCID: PMC10430687 DOI: 10.1021/acs.orglett.2c00096] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/11/2022]
Abstract
(±)-Hypeisoxazole A (1), a racemic pair of rearranged benzylisoquinoline alkaloids possessing an unprecedented diindeno[2,1-c:2',1'-d] isoxazole scaffold, was isolated from the medicinal herb Hypecoum erectum, along with hypecoleptopine (2), whose structure is now revised as a novel spiro-benzylisoquinoline alkaloid with a 6/6/5/6/6 skeleton. Their structures were determined by comprehensive spectroscopic and spectrometric analyses, X-ray diffraction, and computational studies. Racemic mixture of 2 and its pure enantiomers modulated neuronal excitability activity.
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Affiliation(s)
- Pan-Ting Sun
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
| | - Yan-Gang Cao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
| | - Gui-Min Xue
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
| | - Meng Li
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
| | - Chun-Lei Zhang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Fang Zhao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, P. R. China
| | - Dongdong Wang
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
| | - Kirk R Gustafson
- Molecular Targets Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702-1201, United States
| | - Xiao-Ke Zheng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
- Co-Construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P. R. China, Zhengzhou 450046, P. R. China
| | - Wei-Sheng Feng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
- Co-Construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P. R. China, Zhengzhou 450046, P. R. China
| | - Hui Chen
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou 450046, P. R. China
- Co-Construction Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases by Henan & Education Ministry of P. R. China, Zhengzhou 450046, P. R. China
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6
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Peng GY, Kurtán T, Mándi A, He J, Cao ZY, Tang H, Mao SC, Zhang W. Neuronal Modulators from the Coral-Associated Fungi Aspergillus candidus. Mar Drugs 2021; 19:md19050281. [PMID: 34069724 PMCID: PMC8161303 DOI: 10.3390/md19050281] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 11/16/2022] Open
Abstract
Three new p-terphenyl derivatives, named 4″-O-methyl-prenylterphenyllin B (1) and phenylcandilide A and B (17 and 18), and three new indole-diterpene alkaloids, asperindoles E-G (22-24), were isolated together with eighteen known analogues from the fungi Aspergillus candidus associated with the South China Sea gorgonian Junceela fragillis. The structures and absolute configurations of the new compounds were elucidated on the basis of spectroscopic analysis, and DFT/NMR and TDDFT/ECD calculations. In a primary cultured cortical neuronal network, the compounds 6, 9, 14, 17, 18 and 24 modulated spontaneous Ca2+ oscillations and 4-aminopyridine hyperexcited neuronal activity. A preliminary structure-activity relationship was discussed.
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Affiliation(s)
- Gao-Yang Peng
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, China;
- School of Medicine, Tongji University, 1239 Si-Ping Road, Shanghai 200092, China
- School of Pharmacy, Navy Medical University, 325 Guo-He Rd., Shanghai 200433, China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen, POB 400, H-4002 Debrecen, Hungary; (T.K.); (A.M.)
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen, POB 400, H-4002 Debrecen, Hungary; (T.K.); (A.M.)
| | - Jing He
- State Key Laboratory of Natural Medicines, Department of TCM Pharmacology, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long-Mian Ave., Nanjing 211198, China; (J.H.); (Z.-Y.C.)
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines, Department of TCM Pharmacology, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long-Mian Ave., Nanjing 211198, China; (J.H.); (Z.-Y.C.)
| | - Hua Tang
- Institute of Translational Medicine, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China;
| | - Shui-Chun Mao
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, China;
- Correspondence: (S.-C.M.); (W.Z.)
| | - Wen Zhang
- School of Medicine, Tongji University, 1239 Si-Ping Road, Shanghai 200092, China
- School of Pharmacy, Navy Medical University, 325 Guo-He Rd., Shanghai 200433, China
- Correspondence: (S.-C.M.); (W.Z.)
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Liu J, Xi CC, He J, Fan QJ, Zhou GZ, Zhang CL, Cao ZY. New phenylpropanoid-substituted and benzyl-substituted flavonols from Alangium chinense. Fitoterapia 2021; 148:104792. [PMID: 33276012 DOI: 10.1016/j.fitote.2020.104792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/23/2020] [Accepted: 11/27/2020] [Indexed: 11/29/2022]
Abstract
Two previously undescribed flavonols with phenylpropanoid or benzyl substitution, named alangsine A (1), and alangsine B (2), together with four known compounds (3-6) were isolated from the leaves of Alangium chinense. Alangsine A was a racemic mixture, which was further separated into two enantiomers via high-performance liquid chromatography on a chiral column. The absolute configurations of the enantiomer pairs were deduced from the circular dichroism (CD) spectra. The activity of the isolated compounds towards neuronal excitability was examined.
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Affiliation(s)
- Ju Liu
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Chu-Chu Xi
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Jing He
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Qi-Jing Fan
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Gang-Zhong Zhou
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Chun-Lei Zhang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China.
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China.
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8
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Liu J, Cao ZY. [Roles of amyloid-β in the pathogenesis of cerebral amyloid angiopathy and Alzheimer's disease should be clarified]. Zhonghua Yi Xue Za Zhi 2020; 100:3385-3387. [PMID: 33238667 DOI: 10.3760/cma.j.cn112137-20200603-01768] [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: 06/11/2023]
Affiliation(s)
- J Liu
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Z Y Cao
- Department of Neurology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
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Gu LF, Ge HT, Zhao L, Wang YJ, Zhang F, Tang HT, Cao ZY, Yu BY, Chai CZ. Huangkui Capsule Ameliorates Renal Fibrosis in a Unilateral Ureteral Obstruction Mouse Model Through TRPC6 Dependent Signaling Pathways. Front Pharmacol 2020; 11:996. [PMID: 32719603 PMCID: PMC7350529 DOI: 10.3389/fphar.2020.00996] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/19/2020] [Indexed: 02/06/2023] Open
Abstract
Renal fibrosis is the final common pathological manifestation of almost all progressive chronic kidney diseases (CKD). Transient receptor potential canonical (TRPC) channels, especially TRPC3/6, were proposed to be essential therapeutic targets for kidney injury. Huangkui capsule (HKC), an important adjuvant therapy for CKD, showed superior efficacy for CKD at stages 1–2 in clinical practice. However, its anti-fibrotic effect and the underlying mechanisms remain to be investigated. In the present study, we evaluated the efficacy of HKC on renal fibrosis in a mouse model of unilateral ureteral obstruction (UUO) and explored the potential underlying mechanism. Administration of HKC by intragastric gavage dose-dependently suppressed UUO-induced kidney injury and tubulointerstitial fibrosis. Similarly, HKC suppressed the expression level of α-smooth muscle actin (α-SMA), increased the expression of E-cadherin, and suppressed the mRNA expression of a plethora of proinflammatory mediators that are necessary for the progression of renal fibrosis. Mechanistically, HKC suppressed both canonical and non-canonical TGF-β signaling pathways in UUO mice as well as the TRPC6/calcineurin A (CnA)/nuclear factor of activated T cells (NFAT) signaling axis. In addition, TRPC6 knockout mice and HKC treated wild type mice displayed comparable protection on UUO-triggered kidney tubulointerstitial injury, interstitial fibrosis, and α-SMA expression. More importantly, HKC had no additional protective effect on UUO-triggered kidney tubulointerstitial injury and interstitial fibrosis in TRPC6 knockout mouse. Further investigation demonstrated that HKC could directly suppress TRPC3/6 channel activities. Considered together, these data demonstrated that the protective effect of HKC on renal injury and interstitial fibrosis is dependent on TRPC6, possibly through direct inhibition of TRPC6 channel activity and indirect suppression of TRPC6 expression.
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Affiliation(s)
- Li-Fei Gu
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hai-Tao Ge
- Institute of Huanghui, Jiangsu Suzhong Pharmaceutical Group Co., Ltd., Taizhou, China
| | - Lei Zhao
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yu-Jing Wang
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Fan Zhang
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hai-Tao Tang
- Institute of Huanghui, Jiangsu Suzhong Pharmaceutical Group Co., Ltd., Taizhou, China
| | - Zheng-Yu Cao
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Bo-Yang Yu
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Cheng-Zhi Chai
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Research, School of Traditional Pharmacy, China Pharmaceutical University, Nanjing, China
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10
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Zhang CL, Huang QL, Zhu Q, Chen J, Zhang F, Cao ZY. New phthalideisoquinoline hemiacetal alkaloid derivatives from Corydalis decumbens. Fitoterapia 2020; 144:104494. [DOI: 10.1016/j.fitote.2020.104494] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/05/2020] [Accepted: 02/07/2020] [Indexed: 01/25/2023]
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11
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Zhang CL, Huang QL, Zhu Q, He J, Chen J, Zhang F, Cao ZY. Alkaloids from Corydalis decumbens modulate neuronal excitability. Bioorg Chem 2020; 99:103795. [DOI: 10.1016/j.bioorg.2020.103795] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/19/2020] [Accepted: 03/23/2020] [Indexed: 10/24/2022]
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12
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Wang HL, Li R, Li J, He J, Cao ZY, Kurtán T, Mándi A, Zheng GL, Zhang W. Alternarin A, a Drimane Meroterpenoid, Suppresses Neuronal Excitability from the Coral-Associated Fungi Alternaria sp. ZH-15. Org Lett 2020; 22:2995-2998. [PMID: 32237750 DOI: 10.1021/acs.orglett.0c00746] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alternarin A (1), a rearranged drimane meroterpenoid characterized by a thioglycerate moiety, was isolated together with two known analogues from the coral-associated fungi Alternaria sp. ZH-15. Its structure was determined based on spectroscopic analysis, modified Mosher's method, and TDDFT/ECD calculations. In a primary cultured cortical neuronal network, compound 1 effectively inhibited the activity of spontaneous synchronous Ca2+ oscillations and 4-aminopyridine induced epileptic discharges in the low micromolar concentration range.
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Affiliation(s)
- Hong-Liang Wang
- School of Pharmacy, Second Military Medical University, 325 Guo-He Road, Shanghai 200433, People's Republic of China.,NCO School of Army Medical University, 450 West Zhong-Shan Rd., Shijiazhuang 050000, People's Republic of China
| | - Ran Li
- School of Pharmacy, Second Military Medical University, 325 Guo-He Road, Shanghai 200433, People's Republic of China
| | - Jiao Li
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Gao-Ke Road, Hangzhou 311402, People's Republic of China
| | - Jing He
- State Key Laboratory of Natural Medicines and Department of TCM Pharmacology, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long-Mian Avenue, Nanjing 211198, People's Republic of China
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines and Department of TCM Pharmacology, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Long-Mian Avenue, Nanjing 211198, People's Republic of China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen, POB 400, H-4002 Debrecen, Hungary
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen, POB 400, H-4002 Debrecen, Hungary
| | - Gui-Liang Zheng
- Department of Otorhinolaryngology, Head and Neck Surgery, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kong-Jiang Road, Shanghai 200092, People's Republic of China
| | - Wen Zhang
- School of Pharmacy, Second Military Medical University, 325 Guo-He Road, Shanghai 200433, People's Republic of China.,Tongji Hospital Affiliated to Tongji University, 389 Xin-Cun Road, Shanghai 200065, People's Republic of China
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13
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Zhang CL, Huang QL, Chen J, Zhang WJ, Jin HX, Wang HB, Naman CB, Cao ZY. Phthalideisoquinoline Hemiacetal Alkaloids from Corydalis decumbens That Inhibit Spontaneous Calcium Oscillations, Including Alkyl Derivatives of (+)-Egenine That Are Strikingly Levorotatory. J Nat Prod 2019; 82:2713-2720. [PMID: 31599578 DOI: 10.1021/acs.jnatprod.9b00247] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The new phthalideisoquinoline hemiacetal alkaloids (2-7) and the known analogues (1 and 8) were isolated from the bulbs of Corydalis decumbens. The new compounds were characterized by analysis of their NMR spectroscopic data, chemical degradation syntheses, X-ray crystallography, and comparison of experimental and calculated ECD data. All the isolates were screened in vitro for inhibitory activity of spontaneous calcium oscillations in primary cultured neocortical neurons. Compounds 1-3 and 5-7 were found to be active in the suppression of spontaneous calcium oscillations with IC50 values of 6.8, 5.6, 11.6, 10.2, 8.3, and 3.1 μM, respectively. It was also observed that the presence of hydroxy, methoxy, and ethoxy groups at the remote stereogenic center C-7' of some isolated phthalideisoquinoline hemiacetal alkaloids could alter the preferred conformation and invert the sign of optical rotation, rather than this resulting from configurational isomerism at C-1 or C-9, and that the 3J1,9 coupling constants of these analogues varied accordingly. For example, compounds 1 and 6 are levorotatory, despite these molecules having the same carbon skeleton and absolute configuration as (+)-egenine. This emphasizes the potential risk of incorrectly assigning absolute configuration based only on observed coupling constants or optical rotation when comparing the data of new compounds with literature values for known analogues, especially within this class of molecules.
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Affiliation(s)
- Chun-Lei Zhang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing , Jiangsu 211198 , People's Republic of China
| | - Qi-Long Huang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing , Jiangsu 211198 , People's Republic of China
| | - Juan Chen
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing , Jiangsu 211198 , People's Republic of China
| | - Wan-Jin Zhang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing , Jiangsu 211198 , People's Republic of China
| | - Hai-Xiao Jin
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences , Ningbo University , Ningbo , Zhejiang 315800 , People's Republic of China
| | - Hong-Bo Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education , Yantai University , Yantai , 264005 , People's Republic of China
| | - C Benjamin Naman
- Li Dak Sum Marine Biopharmaceutical Research Center, Department of Marine Pharmacy, College of Food and Pharmaceutical Sciences , Ningbo University , Ningbo , Zhejiang 315800 , People's Republic of China
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography , University of California, San Diego , La Jolla , California 92093 , United States
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy , China Pharmaceutical University , Nanjing , Jiangsu 211198 , People's Republic of China
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14
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Zhang CL, Wang Y, Zhao F, Liu YF, Shi GR, Chen RY, Yu DQ, Cao ZY. Rearranged iridal-type triterpenoids from Iris tectorum. Fitoterapia 2019; 137:104193. [PMID: 31175949 DOI: 10.1016/j.fitote.2019.104193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/03/2019] [Accepted: 06/04/2019] [Indexed: 11/26/2022]
Abstract
Three new iridal-type triterpenoids (1-3) featuring a rearranged homofarnesylside chain were isolated from the rhizomes of Iris tectorum. Compounds 2 and 3 were found to be a pair of epimers. Their structures were elucidated on the basis of comprehensive spectroscopic analysis. A possible biosynthetic pathway for them was postulated. Moreover, the mixture of compounds 2 and 3 exhibited moderate neuroprotective activity against serum deprivation-induced PC12 cell death.
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Affiliation(s)
- Chun-Lei Zhang
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Yan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Fang Zhao
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China
| | - Yan-Fei Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Guo-Ru Shi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - Ruo-Yun Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
| | - De-Quan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China.
| | - Zheng-Yu Cao
- State Key Laboratory of Natural Medicines & Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, People's Republic of China.
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15
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Tang YH, Wu J, Fan TT, Zhang HH, Gong XX, Cao ZY, Zhang J, Lin HW, Han BN. Chemical and biological study of aplysiatoxin derivatives showing inhibition of potassium channel Kv1.5. RSC Adv 2019; 9:7594-7600. [PMID: 35521179 PMCID: PMC9061199 DOI: 10.1039/c9ra00965e] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 02/25/2019] [Indexed: 11/21/2022] Open
Abstract
Three new aplysiatoxins, neo-debromoaplysiatoxin D (1), oscillatoxin E (2) and oscillatoxin F (3), accompanied by four known analogues (4–7), were identified from the marine cyanobacterium Lyngbya sp. Structural frames differ amongst these metabolites, and therefore we classified compounds 1 and 4–6 as aplysiatoxins as they possess 6/12/6 and 6/10/6 tricyclic ring systems featuring a macrolactone ring, and compounds 2, 3 and 7 as oscillatoxins that feature a hexane-tetrahydropyran in a spirobicyclic system. Bioactivity experiments showed that compounds 1 and 4–6 presented significant expression of phosphor-PKCδ whereas compounds 2, 5 and 7 showed the most potent blocking activity against potassium channel Kv1.5 with IC50 values of 0.79 ± 0.032 μM, 1.28 ± 0.080 μM and 1.47 ± 0.138 μM, respectively. Molecular docking analysis supplementing the binding interaction of oscillatoxin E (2) and oscillatoxin F (3) with Kv1.5 showed oscillatoxin E (2) with a strong binding affinity of −37.645 kcal mol−1 and oscillatoxin F (3) with a weaker affinity of −32.217 kcal mol−1, further supporting the experimental data. New aplysiatoxin derivative (oscillatoxin E) exhibiting potent blocking activity against potassium channel Kv1.5 is consistent with molecular docking analysis.![]()
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Affiliation(s)
- Yang-Hua Tang
- Research Center of Marine Biology and Natural Products
- College of Life Sciences and Medicine
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Jing Wu
- Department of Pathophysiology
- Shanghai Jiaotong University
- School of Medicine
- Shanghai 200025
- China
| | - Ting-Ting Fan
- Research Center of Marine Biology and Natural Products
- College of Life Sciences and Medicine
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Hui-Hui Zhang
- Research Center of Marine Biology and Natural Products
- College of Life Sciences and Medicine
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Xiao-Xia Gong
- Research Center of Marine Biology and Natural Products
- College of Life Sciences and Medicine
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
| | - Zheng-Yu Cao
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development
- China Pharmaceutical University
- Nanjing
- China
| | - Jian Zhang
- Department of Pathophysiology
- Shanghai Jiaotong University
- School of Medicine
- Shanghai 200025
- China
| | - Hou-Wen Lin
- Research Center for Marine Drugs
- State Key Laboratory of Oncogenes and Related Genes
- Department of Pharmacy
- Ren Ji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
- Shanghai 200127
| | - Bing-Nan Han
- Research Center of Marine Biology and Natural Products
- College of Life Sciences and Medicine
- Zhejiang Sci-Tech University
- Hangzhou 310018
- China
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16
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Wu W, Cao ZY, Hou LK, Huang Y, Dong ZW, Zhang W, Li H, Kong J, Wu CY. [Evaluation system before molecular detection of liquid-based cytology samples from non-small cell lung cancer and analysis of epidermal growth factor receptor gene mutation status]. Zhonghua Bing Li Xue Za Zhi 2018; 47:955-958. [PMID: 30522180 DOI: 10.3760/cma.j.issn.0529-5807.2018.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Wu YJ, Qin R, He JM, Cao ZY, Dong LG, Yang B. [The influence of chemotherapy-induced leucopenia on the disease-free survival of gastric cancer patients after radical gastrectomy]. Zhonghua Yi Xue Za Zhi 2018; 98:1919-1922. [PMID: 29996282 DOI: 10.3760/cma.j.issn.0376-2491.2018.24.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the association between chemotherapy-induced leucopenia and patients' disease-free survival in gastric cancer patients who received radical gastrectomy. Methods: The clinical data of 273 gastric cancer patients who received radical gastrectomy and postoperative adjuvant chemotherapy between January, 2010 and December, 2015 in PLA 309(th) hospital was reviewed retrospectively. Results: A total of 195 (71.4%) patients experienced at least one time of leucopenia, while it was absent in the other 78 (28.6%) patients. The median disease-free survival of patients with or without leucopenia was 49.7 and 44.0 months respectively (P=0.009), leucopenia was an independent factor influencing patients' disease-free survival (HR=2.758, P=0.022), but there was no statistical difference between the disease-free survival of patients with different degrees and frequency of leucopenia (P=0.446, 0.123). Conclusion: Chemotherapy-induced leucopenia is a predictor of good prognosis for gastric cancer patients who receive radical gastrectomy.
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Affiliation(s)
- Y J Wu
- Department of General Surgery, PLA 309th Hospital, Beijing 100091, China
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18
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Zhang CL, Hao ZY, Liu YF, Wang Y, Shi GR, Jiang ZB, Chen RY, Cao ZY, Yu DQ. Polycycloiridals with a Cyclopentane Ring from Iris tectorum. J Nat Prod 2017; 80:156-161. [PMID: 28032759 DOI: 10.1021/acs.jnatprod.6b00796] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Six new iridal-type triterpenoids containing an unprecedented cyclopentane ring, polycycloiridals E-J (1-6), were isolated from a large-scale re-extraction of Iris tectorum. A possible biosynthesis pathway is postulated. The known spirioiridotectal D (7) was also obtained in the current investigation, and its structure was unequivocally defined using X-ray diffraction data. Compound 7 suppressed LPS-activated NO production in the BV2 cell line with an IC50 value of 0.54 μM.
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Affiliation(s)
- Chun-Lei Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of TCM, China Pharmaceutical University , Nanjing 211198, People's Republic of China
| | - Zhi-You Hao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Yan-Fei Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Yan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Guo-Ru Shi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zhi-Bo Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Ruo-Yun Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zheng-Yu Cao
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of TCM, China Pharmaceutical University , Nanjing 211198, People's Republic of China
| | - De-Quan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
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19
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Wu ZY, Saito Y, Zhao DN, Zhou JQ, Cao ZY, Li SJ, Shang JH, Liang YY. Impact of human activities on subaqueous topographic change in Lingding Bay of the Pearl River estuary, China, during 1955-2013. Sci Rep 2016; 6:37742. [PMID: 27886227 PMCID: PMC5123572 DOI: 10.1038/srep37742] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 11/01/2016] [Indexed: 11/15/2022] Open
Abstract
Estuaries have been sites of intensive human activities during the past century. Tracing the evolution of subaqueous topography in estuaries on a decadal timescale enables us to understand the effects of human activities on estuaries. Bathymetric data from 1955 to 2010 show that land reclamation decreased the subaqueous area of Lingding Bay, in the Pearl River estuary, by ~170 km2 and decreased its water volume by 615 × 106 m3, representing a net decrease of 11.2 × 106 m3 per year and indicating the deposition of approximately 14.5 Mt/yr of sediment in Lingding Bay during that period. Whereas Lingding Bay was mainly governed by natural processes with slight net deposition before 1980, subsequent dredging and large port engineering projects changed the subaqueous topography of the bay by shallowing its shoals and deepening its troughs. Between 2012 and 2013, continuous dredging and a surge of sand excavation resulted in local changes in water depth of ± 5 m/yr, far exceeding the magnitude of natural topographic evolution in Lingding Bay. Reclamation, dredging, and navigation-channel projects removed 8.4 Mt/yr of sediment from Lingding Bay, representing 29% of the sediment input to the bay, and these activities have increased recently.
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Affiliation(s)
- Z Y Wu
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China.,School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
| | - Yoshiki Saito
- Geological Survey of Japan, AIST, Central 7, Higashi 1-1-1, Tsukuba, Ibaraki 305-8567, Japan.,ReCCLE, Shimane University, 1060, Nishikawatsu-Cho, Matsue 690-8504, Japan
| | - D N Zhao
- School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
| | - J Q Zhou
- School of Earth Sciences, Zhejiang University, Hangzhou 310027, China
| | - Z Y Cao
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China
| | - S J Li
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China
| | - J H Shang
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China
| | - Y Y Liang
- Key Laboratory of Submarine Geosciences and Second Institute Oceanography, State Oceanic Administration, Hangzhou 310012, China
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20
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Zhang CL, Liu YF, Wang Y, Liang D, Jiang ZB, Li L, Hao ZY, Luo H, Shi GR, Chen RY, Cao ZY, Yu DQ. Polycycloiridals A-D, Four Iridal-Type Triterpenoids with an α-Terpineol Moiety from Iris tectorum. Org Lett 2015; 17:5686-9. [PMID: 26555865 DOI: 10.1021/acs.orglett.5b02982] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polycycloiridals A-D, four novel iridals with an unprecedented α-terpineol moiety resulting from cyclization of the homofarnesylside chain, were isolated from the ethanol extract of rhizomes of Iris tectorum. Their structures were elucidated on the basis of comprehensive spectroscopic analysis. The absolute configuration of 1 was determined by the modified Mosher's method and comparison of experimental and calculated electronic circular dichroism (ECD) spectrum. A possible biosynthetic pathway was postulated.
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Affiliation(s)
- Chun-Lei Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China.,Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of TCM, China Pharmaceutical University , Nanjing 211198, People's Republic of China
| | - Yan-Fei Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Yan Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Dong Liang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zhi-Bo Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Li Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zhi-You Hao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Huan Luo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Guo-Ru Shi
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Ruo-Yun Chen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
| | - Zheng-Yu Cao
- Jiangsu Provincial Key Laboratory for TCM Evaluation and Translational Development, School of TCM, China Pharmaceutical University , Nanjing 211198, People's Republic of China
| | - De-Quan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050, People's Republic of China
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Abstract
The security risk of magnesium alloys used as biodegradable implant material was evaluated in this study. Dose-response assessment was conducted by using toxicological data from authoritative public health agencies (World Health Organization) and assuming 1~3 years of uniform corrosion. Through modification calculation, the tolerable corrosion rate of biodegradable magnesium alloys in vivo was proposed, which theoretically ensured the bio-safety of the degradation products. The tolerable limits corresponding to various component elements in magnesium alloys were considered separately, although there are deficits in the toxicological data of some component elements. The influence of corrosion on the strength of magnesium alloys was evaluated, which would contribute to the rationally utilization of magnesium alloys as degradable implant materials. This study illustrates that not only toxicological calculations but also mechanical performance should be taken into consideration when developing novel degradable metallic implant.
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Affiliation(s)
- X Sun
- Department of Materials Science and Engineering, Jilin University, Changchun 130025, China
| | - Z Y Cao
- Department of Materials Science and Engineering, Jilin University, Changchun 130025, China
| | - J G Liu
- Joint Surgery Department, Norman Bethune No.1 Hospital, Jilin University, Changchun 130000, China
| | - C Feng
- Changchun Limei Technology Development Company Limited, Changchun 130000, China
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Zhao XH, Cao ZY, Shen Y, Lv YF, Tao GR, Chen S. Influence of Chongcao Yigan Capsule on function of intestinal flora and chemoprevention for patients with chronic hepatitis B-induced liver fibrosis. Asian Pac J Cancer Prev 2015; 15:9423-6. [PMID: 25422235 DOI: 10.7314/apjcp.2014.15.21.9423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE Hapatitis B visus (CHB)-induced fibrosis is a precancerous condition of liver. To explore the influence of Chongcao Preparation (Chongcao Yigan Capsule) on the function of intestinal flora and chemoprevention for patients with CHB-induced liver fibrosis. METHODS A total of 136 patients with CHB-induced liver fibrosis were randomly divided into control group treated with lamivudine (LAM) and research group added with Chongcao Yigan Capsule for totally 48 weeks. The changes of intestinal flora, secretory immunoglobin A (SIgA), serum albumin (ALB), prealbumin (PALB), IgA and IgG at different time points in both groups were observed. RESULTS Before treatment, there was no significant difference between two groups in each index (P>0.05). After treatment, the intestinal flora were evidently optimized in research group than treatment before (P<0.05 or P<0.01), and were apparently better than those in control group (P<0.05 or P<0.01); SIgA was obviously increased and ALB, PALB, IgA and IgG were markedly improved in research group than treatment before (P<0.05 or P<0.01), and were significantly better than those in control group (P<0.05 or P<0.01). CONCLUSIONS Chongcao Yigan Capsule could regulate the intestinal flora, increase SIgA, serum ALB and PALB concentrations and significantly improve serum IgA and IgG as well as strengthen the immunological function and autologous repair capacity of patients with CHB-induced liver fibrosis.
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Affiliation(s)
- Xiao-Hu Zhao
- Department of Infection, Huai'an Hospital, Nanjing Medical University, Huai'an, China E-mail :
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23
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Tang WG, Song P, Cao ZY, Wang P, Zhu GP. A unique homodimeric NAD⁺-linked isocitrate dehydrogenase from the smallest autotrophic eukaryote Ostreococcus tauri. FASEB J 2015; 29:2462-72. [PMID: 25724193 DOI: 10.1096/fj.14-257014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 02/03/2015] [Indexed: 11/11/2022]
Abstract
In eukaryotes, NAD(+)-dependent isocitrate dehydrogenase (IDH) is strictly mitochondrial and is a key enzyme in the Krebs cycle. To date, all known NAD(+)-specific IDHs (NAD-IDHs) in the mitochondria are believed to be heteromeric in solution. Here, a unique homodimeric NAD-IDH from Ostreococcus tauri (OtIDH), the smallest autotrophic picoeukaryote, was unveiled. Active OtIDH has a molecular weight of ∼93 kDa with each subunit of 46.7 kDa. In the presence of Mn(2+) and Mg(2+), OtIDH displayed 42-fold and 51-fold preference for NAD(+) over NADP(+), respectively. Interestingly, OtIDH exhibited a sigmoidal kinetic behavior in response to isocitrate unlike other homodimeric homologs, and a remarkably high affinity for isocitrate (S0.5 < 10 μM) unlike other hetero-oligomeric homologs. Furthermore, its coenzyme specificity can be completely converted from NAD(+) (ancient trait) to NADP(+) (adaptive trait) by rational mutagenesis based on the evolutionary trace. Mutants D344R and D344R/M345H displayed a 15-fold and 72-fold preference for NADP(+) over NAD(+), respectively, indicating that D344 and M345 are the determinants of NAD(+) specificity. These findings also suggest that OtIDH may be an ancestral form of type II IDHs (all reported members are NADP(+)-linked enzymes) and may have evolved into NADP(+)-dependent IDH for adaptation to the increased demand of NADPH under carbon starvation.
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Affiliation(s)
- Wang-Gang Tang
- Institute of Molecular Biology and Biotechnology, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Ping Song
- Institute of Molecular Biology and Biotechnology, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Zheng-Yu Cao
- Institute of Molecular Biology and Biotechnology, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Peng Wang
- Institute of Molecular Biology and Biotechnology, College of Life Sciences, Anhui Normal University, Wuhu, China
| | - Guo-Ping Zhu
- Institute of Molecular Biology and Biotechnology, College of Life Sciences, Anhui Normal University, Wuhu, China
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24
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Ge YD, Song P, Cao ZY, Wang P, Zhu GP. Alteration of coenzyme specificity of malate dehydrogenase from Streptomyces coelicolor A3(2) by site-directed mutagenesis. Genet Mol Res 2014; 13:5758-66. [PMID: 25117334 DOI: 10.4238/2014.july.29.3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We describe here for the first time the alteration of coenzyme specificity of malate dehydrogenase (MDH) from Streptomyces coelicolor A3(2) (ScMDH). In the present study, we replaced four amino acid residues in the Rossmann fold (βB-αC) region of NADH-dependent ScMDH by site-directed mutagenesis with those of NADPH-dependent MDH (Glu42Gly, Ile43Ser, Pro45Arg, and Ala46Ser). The coenzyme specificity of the mutant enzyme (ScMDH-T4) was examined. Coenzyme specificity of ScMDH-T4 was shifted 2231.3-fold toward NADPH using kcat/Km(coenzyme) as the measurement of coenzyme specificity. Accordingly, the effect of the replacements on coenzyme specificity is discussed. Our work provides further insight into the coenzyme specificity of ScMDH.
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Affiliation(s)
- Y D Ge
- Institute of Molecular Biology and Biotechnology, Key Laboratory of Molecular Evolution and Biodiversity, Key Laboratory of the Biotic Environment and Ecological Safety in Anhui Province, Anhui Normal University, Wuhu, Anhui, China
| | - P Song
- Institute of Molecular Biology and Biotechnology, Key Laboratory of Molecular Evolution and Biodiversity, Key Laboratory of the Biotic Environment and Ecological Safety in Anhui Province, Anhui Normal University, Wuhu, Anhui, China
| | - Z Y Cao
- Institute of Molecular Biology and Biotechnology, Key Laboratory of Molecular Evolution and Biodiversity, Key Laboratory of the Biotic Environment and Ecological Safety in Anhui Province, Anhui Normal University, Wuhu, Anhui, China
| | - P Wang
- Institute of Molecular Biology and Biotechnology, Key Laboratory of Molecular Evolution and Biodiversity, Key Laboratory of the Biotic Environment and Ecological Safety in Anhui Province, Anhui Normal University, Wuhu, Anhui, China
| | - G P Zhu
- Institute of Molecular Biology and Biotechnology, Key Laboratory of Molecular Evolution and Biodiversity, Key Laboratory of the Biotic Environment and Ecological Safety in Anhui Province, Anhui Normal University, Wuhu, Anhui, China
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25
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Li PP, Cao ZY, Wang K, Zhai H, Jia H, Liu N, Li SH, Hao ZM, Gu SQ, Dong JG. First Report of Fusarium equiseti Causing a Sheath Rot of Corn in China. Plant Dis 2014; 98:998. [PMID: 30708875 DOI: 10.1094/pdis-10-13-1088-pdn] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Corn is the most important cereal crop in China. Over 34.94 million ha of corn is cultivated in the country annually. However, fungal diseases are a major limiting factor in corn production. In August 2008, 50 ha in several corn fields in Liaoning, Jilin, and Heilongjiang provinces were observed to be severely affected by a disease causing a yield loss of 30%. Results from field surveys suggested an epidemic during late corn growth stages that affected corn sheaths, causing irregularly circular spots with grayish brown to dark brown lesions. Lesions ranged from 2.5 to 3 × 3 to 5 cm. To isolate the causal agent, tissue was removed from the border of lesions and surface sterilized in 75% ethanol for 30 sec and 0.1% HgCl2 for 1 min. The sample was then triple rinsed in sterile distilled water. The isolate was purified and subcultured on potato dextrose agar (PDA) at 25 ± 2°C. The initial color of the mycelium was white, turning brown after being cultured for 7 days. A pale brown to dark brown pigment developed in the agar beneath the colony. Chlamydospores, solitary but also in short chains, measuring 7.2 to 15.3 μm, were produced on carnation leaf agar (CLA) after 10 days and became verrucose 20 days later. Macroconidia were produced on CLA in orange sporodochia from monophialides on branched conidiophores, usually 5- to 7-septate, and apical cells were tapered and elongate. Basal cells were prominent, foot-shaped, and elongated in appearance. Microconidia were not observed (1). These morphological characteristics matched the description of Fusarium equiseti reported by Leslie and Summerell (1). A pathogenicity test was conducted with an isolate from each of the 36 corn plants by spraying 2 ml of spore suspension (106 conidia/ml) on 45-day-old corn sheaths (cv. Huang Zao). For the control treatment, 36 corn plants were sprayed with an equal volume of sterilized water. Inoculated plants were placed in a greenhouse at 32 to 34°C and 95% relative humidity. Typical irregularly circular lesions were observed 7 days after inoculation, except in the control samples. Each treatment was replicated three times. The suspected pathogen was consistently re-isolated from diseased tissue according to Koch's postulates, and was found to be morphologically similar to F. equiseti. Preliminary morphological identification of the fungus was confirmed by a PCR assay using genomic DNA extracted from the mycelia of a 7-day-old culture on PDA at 25 ± 2°C. A 750-bp amplified region of the transcription elongation factor (TEF) of rDNA was generated using TEF1 (5'-ATGGGTAAGGAGGACAAGAC-3') and TEF2 (5'-GGAAGTACCAGTGATCATGTT-3') primers. The TEF region (GenBank Accession No. KF754798) was sequenced by Sangon Biotech Co., Ltd. (Shanghai, China) and displayed 99% nucleotide similarity with the rDNA-TEF of F. equiseti (JN127347.1) separately after a BLASTn search in GenBank. Based on the symptoms, fungal morphology, TEF sequence, and pathogenicity testing, this fungus was identified as F. equiseti. To our knowledge, this is the first report of F. equiseti on corn sheaths in China. This report will establish a foundation for further study of F. equiseti to address the disease effectively and to determine the severity of damage caused by F. equiseti. Reference: (1) J. F. Leslie and B. A. Summerell. The Fusarium Laboratory Manual. Blackwell, Ames, IA, 2006.
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Affiliation(s)
- P P Li
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - Z Y Cao
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - K Wang
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - H Zhai
- Agricultural Bureau of Xingtai, Hebei, P. R. China
| | - H Jia
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - N Liu
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - S H Li
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - Z M Hao
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - S Q Gu
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - J G Dong
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China, and The National Maize Industry Technology RD Center, MOA, Beijing, P. R. China
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26
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Li ZY, Hao ZM, Dong JG, Wu D, Cao ZY. First Report of Elm Yellows Subgroup 16SrV-B Phytoplasma as the Cause of Rose Balsam Phyllody in China. Plant Dis 2014; 98:565. [PMID: 30708718 DOI: 10.1094/pdis-07-13-0778-pdn] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Rose balsam (Impatiens balsamina L.) is an ornamental species frequently cultivated in China and the red flower is often used as nail polish in rural regions. The phytoplasmas previously reported with rose balsam phyllody in China have been classified as aster yellows group (16SrI) (1). In August 2012, some rose balsams were observed with typical phytoplasma symptoms in Handan City, Hebei Province, China, with an incidence of about 70% in the fields. The flowers turned green and petals fascicled. The new leaves wrinkled and deformed and internodes shortened. Infected plants were stunted, matured prematurely, and failed to produce seeds. To confirm phytoplasma infection, 100 mg of plant tissue (leaves, petals) was collected from five symptomatic and four asymptomatic plants and total DNA was extracted using a modified cetyltrimethylammonium bromide (CTAB) method (2). The 16S rDNA gene was amplified by nested PCR using primer pair P1/P7 followed by R16F2n/R16R2 (3). No amplicons were generated with DNA from asymptomatic samples, but amplicons of approximately 1.2 kb were obtained with DNA from five symptomatic samples. The amplified products were purified with aTIANgel midi purification kit (Tiangen, Beijing) and sequenced at the Sangon Biotech facility (Shanghai, China). The sequences of the amplicons were 100% identical and deposited in NCBI GenBank (Accession No. KC993832). The 16S rDNA gene sequence from this phytoplasma was 99% similar to Jujube witches broom phytoplasma (JQ675716), Puna chicory flat stem phytoplasma (JN582266), Plum yellows phytoplasma (FJ459914), and other elm yellows group phytoplasmas by BLAST search of the NCBI database. Restriction fragment length polymorphism (RFLP) analyses were carried out by digesting the 1.2-kb R16F2n/R16R2 nested PCR product with restriction enzymes AluI, RsaI, HhaI, HpaI, Eco RI, TaqI, HaeIII, HinfI, and KpnI (Takara, Dalian). The 16S rDNA RFLP patterns matched that of Jujube witches broom phytoplasma (JWB, subgroup 16SrV-B) (4). Nucleotide sequences of rose balsam phyllody were analyzed by iPhyClassifier software, which revealed that it had maximum similarity to the reference pattern of 16Sr group V, subgroup B (AB052876). All samples were detected with transmission electron microscopy. The results showed phytoplasma-like cells in phloem sieve element of symptomatic plants, while no phytoplasma-like cells were observed in healthy phloem tissues. The phytoplasma cells ranged from 230 to 470 nm in diameter and were ellipsoidal or orbicular with visible membranes. Combining the RFLP pattern and sequence analysis by iPhyClassifier, we classified the phytoplasma causing rose balsam phyllody into subgroup 16SrV-B. To our knowledge, this is the first report of 16SrV-B group phytoplasmas infecting rose balsam in China. References: (1) Z. N. Li et al. J. Phytopathol. 159:799, 2011. (2) M. A. Saghai-Maroof et al. Proc. Natl. Acad. Sci. 81:8014, 1984. (3) I. M. Lee et al. Phytopathology 83:834, 1993. (4) I. M. Lee et al. Int. J. Syst. Bacteriol. 48:1153, 1998.
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Affiliation(s)
- Z Y Li
- Millet Institute of Agricultural Academy of Hebei Province, Shijiazhuang 050035, P. R. China
| | - Z M Hao
- College of Life Science, Agricultural University of Hebei, Baoding 071001, P. R. China
| | - J G Dong
- College of Life Science, Agricultural University of Hebei, Baoding 071001, P. R. China
| | - D Wu
- College of Life Science, Agricultural University of Hebei, Baoding 071001, P. R. China
| | - Z Y Cao
- College of Life Science, Agricultural University of Hebei, Baoding 071001, P. R. China
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27
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Li PP, Cao ZY, Dong JG, Zhang LH, Jia H, Liu N, Li SH, Hao ZM, Gu SQ, Wang XY. First Report of Bipolaris papendorfii Causing Corn Leaf Spot in China. Plant Dis 2013; 97:1506. [PMID: 30708491 DOI: 10.1094/pdis-02-13-0203-pdn] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Corn is the most important cereal crop in China, with over 34.94 million ha being cultivated in the country annually. However, fungal diseases are a major limiting factor in corn production. In August 2012, 20 ha of corn fields in Anhui Province were found to be heavily infected by fungi. The margin of the lesion was achlorotic, and the middle was yellowish white or off-white, which was similar to the corn Curvalaria leaf spot. The oval lesions were approximately 5 to 7 mm. Lesion tissue was removed from the border between symptomatic and healthy tissue. The surface was sterilized in 75% ethanol for 30 s and 0.1% HgCl2 for 1 min, after which the sample was washed three times in sterile distilled water. The isolate was purified and subcultured on potato dextrose agar (PDA) at 25 ± 2°C. The initial color of the colony was light brown, turning dark brown after being cultured for 7 days. The conidia were boat-shaped or inverted pear-shaped and were clearly bent to one side. The cells of both ends were slightly lighter and respectively ranged from 34.5 to 44.0 μm and 12.0 to 21.0 μm away from the base, with the second cell as the widest. The majority conidia had three or four false septates; isolates produced light brown to medium brown conidiophore, scattered or clustered, often branching, and exhibited bending. These morphological characteristics matched with the description of Bipolaris papendorfii reported by Zhang (3). A pathogenicity test was conducted with the two isolates on each of the 36 corns by spraying 2 ml spore suspension (106 conidia/ml). For the control treatment, 36 corns were inoculated with an equal volume of sterilized water. Inoculated plants were placed in a greenhouse from 29 to 33°C and 95% relative humidity. The typical 5 to 7 mm oval lesions were observed 7 days after inoculation, except on the control samples. Three replications of 36 corns were used for each treatment. The isolate was consistently 100% reisolated from the diseased tissue according to Koch's postulate. The isolate was found to be morphologically similar to B. papendorfii. Preliminary morphological identification of the fungus was confirmed by PCR assay using genomic DNA extracted from the mycelium of a 7-day-old culture on PDA at 25 ± 2°C. A 550-bp amplified region of the internal transcribed spacer (ITS) of rDNA was generated using ITS1 (5'-TCCGTAGGTGAACCTGCGG-3') and ITS4 (5'-TCCTCCGCTTATTGATATGC-3') universal primers (1). The ITS region (GenBank Accession No. KC592365) was then sequenced by Sangon Biotech (Shanghai, China), and displayed 99% nucleotide similarity with the rDNA-ITS of B. papendorfii (JQ753972.1) separately after BLASTn research in GenBank. Based on the symptoms, fungal morphology, ITS sequence, and pathogenicity testing, this fungus was identified as B. papendorfii. The pathogen could reportedly infect tobacco and cotton (2). To our knowledge, this is the first study to report that B. papendorfii can infect corn in China. This report will establish a foundation for the further study of B. papendorfii to address the disease effectively. Further studies will be conducted to determine the incidence of the disease and the severity of damage caused by B. papendorfii as well as determine a possible mode for controlling the spread of the disease. References: (1) Y. J. Cao et al. Chin. J. Trop. Crops 31:1098, 2010. (2) H. Deng et al. Mycosystema 21:327, 2002. (3) T. Y. Zhang. Chin. Fungi Chi. 30:21, 2010.
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Affiliation(s)
- P P Li
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - Z Y Cao
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - J G Dong
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China and The National Maize Industry Technology RD Center, MOA
| | - L H Zhang
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - H Jia
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - N Liu
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - S H Li
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - Z M Hao
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - S Q Gu
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
| | - X Y Wang
- Mycotoxin and Molecular Plant Pathology Laboratory, Agricultural University of Hebei, Lekai South Road 2596, Baoding 071001, P. R. China
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Abstract
A new peptide named Martentoxin I and an analogue Martentoxin were purified and characterized from the venom of Buthus martensi Karch. Martentoxin I consisted of 36 amino acid residues with molecular mass as 3908.0 Da determined by matrix-assisted laser desorption ionization time-of-flight-MS. The amino acid sequence was determined as GLIDVKCFASSECWTACKKVTGSGQGKCQNNQCRCY by Edman degradation. Martentoxin consisted of 37 amino acid residues with a molecular mass as 4055.3 Da and it showed highly sequence identity to Martentoxin I as FGLIDVKCFASSECWTACKKVTGSGQGKCQNNQCRCY. Estimation from circular dichroism spectra indicated Martentoxin I owned 18.0% alpha-helix, 53.0% beta-sheet structure and 3.9% turn while Martentoxin contained 13.3% alpha-helix, 64.3% beta-sheet structure and 1.1% turn. The toxicity assay showed both peptides had no toxic effects on mice up to the dose of 10 mg/kg. Electrophysiological studies showed that Martentoxin I and Martentoxin at the concentration of 1 microm significantly inhibited voltage-dependent Na+ current (INa) and voltage-dependent delayed rectifier K+ current (IK) but had no effects on transient K+ current (IA). Both interactions with Na+ and K+ channels were irreversible.
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Affiliation(s)
- Z Y Cao
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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29
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Tang XL, Peng ZL, Cao ZY. [Application of polymerase chain reaction techniques to obstetrics and gynecology]. Zhonghua Fu Chan Ke Za Zhi 1994; 29:434-7. [PMID: 8001422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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30
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Xi MR, Peng ZL, Cao ZY. [The values of urine cysteine protein activity in the diagnosis of ovarian cancer]. Zhonghua Fu Chan Ke Za Zhi 1994; 29:85-7, 123. [PMID: 8033632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The levels of urine cysteine protease (UCP) were detected in the urines of 70 gynecological cancers, 50 gynecological benign tumors and 50 normal women. The values of UCP assay of gynecological cancers were much higher than those of benign and normal samples (P < 0.01). Best cut off point for diagnosis of gynecological cancers was P95 and UCP cut off value was 0.24 pmol.min-1/L by using percentile and ROC curve. The sensitivity of UCP assay was 90%, specificity 80% and accuracy 86%. The sensitivity for ovarian cancers was 95%, but 77% and 85% for corpus and cervical cancers respectively. There were no differences between UCP and CA125 (sensitivity 85%, specificity 87%, accuracy 84%) in the diagnosis of ovarian cancers. In 7 cases of 8 cases of stage I ovarian cancers, UCP were abnormal. In 6 cases of the same group, CA125 were normal (< 35,000 U/L). So UCP may be better than CA125 in the diagnosis of early ovarian cancer. The sensitivity of lactate dehydrogenase (LDH) isoenzyme was 75% in ovarian cancer which was lower than UCP and CA125, but the specificity 85%. LDH isoenzyme still was one of important tumor markers for diagnosis. Combined assays with UCP, CA125 and LDH isoenzyme may reach the sensitivity 96% and specificity 100% evidently. These data implied that UCP may be a good tumor marker in gynecological cancers especially for ovarian cancers in future.
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Affiliation(s)
- M R Xi
- Second Affiliated Hospital, West-China University of Medical Sciences, Chengdu
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31
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Abstract
Unless periodically grown from germinated spores,
Clostridium acetobutylicum
tends to degenerate (that is, to spontaneously lose the capacity both to produce solvents and to develop into spores). To obtain mutants that are deficient in degeneration,
C. acetobutylicum
NCIMB 8052 was mated with
Enterococcus faecalis
BM4110 harboring transposon Tn
1545
. We developed a degeneration resistance assay based on a secondary effect of degeneration, the production of toxic levels of acetic and butyric acids. Erythromycin-resistant transconjugant clones were tested individually for longevity by repeated and timely subculturing. One long-lived mutant, A10, survived 18 ± 3 transfers (mean ± standard deviation;
n
= 20) before extinction, while the wild type (parental cells) survived 6.6 ± 1.5 transfers (
n
= 11). The three-fold difference in longevity is statistically significant. In a batch culture in a rich medium, the wild-type cells degenerated within 24 h after inoculation with 1% of an overnight culture derived from germinated spores. In contrast, A10 cells were able to switch to solventogenesis and to sporulate. In a minimal medium with greater buffering capacity, both cell types produced solvents and spores. Southern blots of
Eco
RI and
Hin
dIII restriction digests of A10 chromosomal DNA (but not parental DNA) showed that only one copy of Tn
1545
was inserted into the clostridial chromosome. Our findings are consistent with the hypothesis that there was an alteration at a regulatory locus that was effected by the insertion of the transposon.
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Affiliation(s)
- E R Kashket
- Department of Microbiology, Boston University School of Medicine, 80 East Concord Street, Boston, Massachusetts 02118-2394
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32
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Cao ZY. [Progress of gynecologic oncology in China]. Zhonghua Fu Chan Ke Za Zhi 1993; 28:463-6. [PMID: 8293687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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33
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Cao ZY. [The Chinese Journal of Obstetrics and gynecology 40th anniversary]. Zhonghua Fu Chan Ke Za Zhi 1993; 28:451-2. [PMID: 8293683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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34
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Huang W, Cao ZY. [Radioimmunoscintigraphy in the diagnosis of early and recurrent ovarian cancers]. Zhonghua Fu Chan Ke Za Zhi 1993; 28:174-6. [PMID: 8354097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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35
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Cao ZY. [Endometrial carcinoma in young women]. Zhonghua Fu Chan Ke Za Zhi 1990; 25:73-6, 123. [PMID: 2364793] [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: 12/31/2022]
Abstract
Two hundred and fifty-four patients with endometrial carcinoma were diagnosed and treated from Feb. 1956 to Apr. 1987. Of these, 35 patients were below the age of 40 years at the time of diagnosis. These patients were analyzed and compared with those aged above 40. The main clinical manifestations were primary sterility and irregular menstruation. An endometrial carcinoma should be suspected in young women with menstruation disorder, sterility and follicular cyst of ovary refractory to treatment. The highly differentiated endometrial carcinoma in young women was easily confused with adenomatous hyperplasia and should be diagnosed with caution. In young patients with stage I well-differentiated disease desirous of childbirth, treatment by large dose of progestogens without hysterectomy may be the method of choice. Estimation of estrogen and progesterone receptors was very helpful in selecting therapeutic modalities and predicting prognosis. The difference of 5-year survival rates between these two groups of patients were not statistically significant.
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Affiliation(s)
- Z Y Cao
- West China University of Medical Sciences, Chengdu
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36
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Chen ML, Du ZL, Lan TH, Cao ZY, Han SW, Lei YD, Li L. [Comparative study on human chorionic gonadotropin receptor in normal human ovary with ovarian tumors]. Hua Xi Yi Ke Da Xue Xue Bao 1989; 20:369-72. [PMID: 2630413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Human Chorionic Gonadotropin (HCG) is major physiological luteotropic factors for the human corpus luteum. The observations strongly suggest that the human ovary possesses a gonadotropin receptor in the cell membrane. We studied the HCG receptor in normal human ovary and ovarian tumors. Twenty-three human ovarian specimens and 16 ovarian tumor specimens were obtained from women patients having gynecological surgery. Ovaries were homogenized and sonicated. The homogenates were centrifuged at 2000 g for 15 min. After sucrose density gradient ultracentrifugation (78,000 g, 4 h), two fractions were collected from layer of 33% and interface between 33% and 37%. Thirty micrograms of ovarian protein, 8 ng 125I-HCG and unlabeled HCG in a final volume of 0.5 ml of 0.05 mol/L Tris buffer were incubated at 30 degrees C for 2 h. The results were shown in the table.
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37
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Han SW, Cao ZY, He B, Wang JH, Chen ML. [Estrogen and progesterone receptors in human ovary and ovarian tumors]. Hua Xi Yi Ke Da Xue Xue Bao 1989; 20:253-6. [PMID: 2625328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Ovarian specimens from 159 different patients were analyzed for estrogen and progesterone receptor (ER and PR) content with the Dextran-coated Charcoal method. The results indicated that the contents of ER and PR in malignant ovarian tumors were not correlated with the menstrual cycle of the patient, clinical stage and differentiation of the tumor. Among malignant ovarian tumors, the mean ER and PR concentrations in sex-cord stromal tumors and endometrioid carcinomas were higher than those in other malignant ovarian tumors (P less than 0.05, P less than 0.025). This suggests the possibility of endocrine therapy for these patients with the hope for a better prognosis.
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38
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Cao ZY, Yang ZR, He B, Han SW. [Study on estrogen and progesterone receptors of endometrium and myometrium]. Hua Xi Yi Ke Da Xue Xue Bao 1988; 19:333-6. [PMID: 3243526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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39
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40
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Yang ZR, Cao ZY. [The uterus and estrogen, progesterone receptors]. Zhonghua Fu Chan Ke Za Zhi 1988; 23:304-6. [PMID: 3074900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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41
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Yang ZR, Cao ZY. [A study on estrogen and progesterone receptors in the human cervix and cervical squamous carcinoma]. Zhonghua Fu Chan Ke Za Zhi 1988; 23:283-6, 317-8. [PMID: 3250810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Wang JH, Han SW, Cao ZY, Wang SL, Sun WG. [Correlation between estrogen and progestin receptor protein and histopathology in ovarian tumor]. Hua Xi Yi Ke Da Xue Xue Bao 1988; 19:301-4. [PMID: 3253178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Cao ZY. [Comparison of two methods of determining fetal weight. A clinical analysis of 207 cases]. Zhonghua Fu Chan Ke Za Zhi 1986; 21:139-41, 190-1. [PMID: 3769635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Cao ZY, Eppenberger U, Roos W, Torhorst J, Almendral A. Cytosol estrogen and progesterone receptor levels measured in normal and pathological tissue of endometrium, endocervical mucosa and cervical vaginal portion. Arch Gynecol 1983; 233:109-19. [PMID: 6882016 DOI: 10.1007/bf02114787] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The aim of this study was to compare cytosol estrogen (ER) and progesterone (PgR) receptor levels measured in normal and pathological tissue specimens (n = 395) of endometrium (ED), endocervical mucosa (EM) and cervical vaginal portion (VP) from 108 patients (age 27-79). The highest ER levels were found in ED which decreased to 25% in VP. The PgR decline was more pronounced in VP since the majority of samples were PgR-negative. In addition pathological tissue from ED exhibited marked differences in steroid receptor levels: The highest ER and PgR concentrations were detected in the proliferative phase, whereas the secretory phase exhibited significantly reduced ER and PgR levels. The lowest ER and PgR amounts were measured in atrophic and quiescent tissues; in proliferative tissue ER and PgR levels were comparable to hyperplastic tissue. Cervical ER and PgR concentrations were significantly lower as compared with ED (25-30%), and no cyclic variations were detectable. Also ER and PgR levels were different between EM and VP. 96% of ER were positive in the cervix, whereas 73% were PgR-negative in VP. Furthermore an inverse correlation between ER and progesterone was found in ED and a positive correlation between estradiol and PgR. These results suggest that the cytosol ER and PgR levels vary markedly in the uterine corpus and may explain in part the different response to endocrine therapy.
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