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Deng X, Wu YJ, Chen YP, Zheng HH, Wang ZP, Zhu Y, Gao XM, Xu YT, Wu HH. Nardonaphthalenones A and B from the roots and rhizomes of Nardostachys chinensis Batal. Bioorg Med Chem Lett 2017; 27:875-879. [DOI: 10.1016/j.bmcl.2017.01.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 12/30/2016] [Accepted: 01/05/2017] [Indexed: 10/20/2022]
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Wang J, Lu CS, Liu DY, Xu YT, Zhu Y, Wu HH. Constituents from Polygonatum sibiricum and their inhibitions on the formation of advanced glycosylation end products. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2016; 18:697-704. [PMID: 26841079 DOI: 10.1080/10286020.2015.1135905] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 12/21/2015] [Indexed: 06/05/2023]
Abstract
A new saponin, isonarthogenin 3-O-β-d-glucopyranosyl-(1→4)-β-d-galactopyranoside (1), together with twelve known compounds, were isolated from the rhizomes of Polygonatum sibiricum. The structures of these compounds were elucidated by analysis of their 1D/2D NMR and MS data. Among them, phenol compounds 4-7 and 9-10 showed significant inhibitions against the formation of advanced glycosylation end products, with IC50 values of 0.091 ± 0.0021, 0.10 ± 0.041, 0.014 ± 0.0027, 0.11 ± 0.011, 0.13 ± 0.045, and 0.055 ± 0.019 μM, respectively. The results will promote exploiting potential medicinal use of these compounds in the prevention of diabetic complications and supporting Polygonatum sibiricum as a functional food for healthy and medicinal diet.
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Zhang LH, Feng BM, Sun Y, Wu HH, Li SG, Liu B, Liu F, Zhang WY, Chen G, Bai J, Hua HM, Wang HF, Pei YH. Flaviphenalenones A–C, three new phenalenone derivatives from the fungus Aspergillus flavipes PJ03-11. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.099] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kou LH, Wu HH, Liu YM, Zhang YP, Zhang JZ, Guo YP, Ma EB. Molecular Characterization of Six Small Heat Shock Proteins and Their Responses Under Cadmium Stress in Oxya chinensis (Orthoptera: Acridoidea). ENVIRONMENTAL ENTOMOLOGY 2016; 45:258-267. [PMID: 26363174 DOI: 10.1093/ee/nvv146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
Small heat shock proteins (sHSPs) have been implicated in many physiological processes and play important roles in the response to various stresses. In this study, the full-length sequences of six sHSPs: OcHSP19.1, 19.8, 20.4, 20.7, 21.1, and 23.8 were obtained from the rice grasshopper Oxya chinensis transcriptome database. The deduced amino acid sequences of the six OcsHSPs contain a typical α-crystallin domain, which consists of approximately 100 amino acid residues and five β-strands. The phylogenetic analysis suggested that OcHSP23.8 was orthologous to the sHSPs of other species and that OcHSP19.1, 20.4, 20.7, and 21.1 were species specific, whereas OcHSP19.8 did not cluster closely to Orthoptera but was placed on the basal end of the cluster. Developmental stage-dependent and tissue-specific expression patterns were evaluated using quantitative real-time polymerase chain reaction. The six genes were expressed in all developmental stages and showed clear tissue specificity. The cadmium acute experiment indicates that Cd(2+) can induce the six genes. However, various response patterns were observed among these genes under Cd(2+) stress conditions. OcHSP19.1, 19.8, 20.4, and 20.7 were highly induced by 2.61 mM Cd(2+) at 24 h. OcHSP23.8 was significantly upregulated by 2.61 mM Cd(2+) at 6 h. For OcHSP21.1, the highest expression levels were found after treatment with 0.87 mM Cd(2+) for 24 h, 1.74 mM Cd(2+) for 36 h, and 2.61 mM Cd(2+) for 12 h. These differential characteristics will facilitate future investigations into the physiological functions of sHSPs.
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Zhang LH, Feng BM, Chen G, Li SG, Sun Y, Wu HH, Bai J, Hua HM, Wang HF, Pei YH. Sporulaminals A and B: a pair of unusual epimeric spiroaminal derivatives from a marine-derived fungus Paraconiothyrium sporulosum YK-03. RSC Adv 2016. [DOI: 10.1039/c6ra01401a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The separation and epimerization of a pair of unusual spiroaminal derivatives isolated from a marine-derived fungus Paraconiothyrium sporulosum YK-03.
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Wu HH, Chen YP, Ying SS, Zhang P, Xu YT, Gao XM, Zhu Y. Dinardokanshones A and B, two unique sesquiterpene dimers from the roots and rhizomes of Nardostachys chinensis. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.079] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wu HH, Wu XB, Li YN, Yang MH, Wang MY. [Management of pelvic injury associated with complete anterior sacroiliac joint dislocation]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2015; 47:276-280. [PMID: 25882944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate the management of pelvic injury associated with complete anterior sacroiliac joint dislocation. METHODS In the study, 6 cases of pelvic injury associated with complete anterior sacroiliac joint dislocation treated in Beijing Jishuitan Hospital from February 2008 to June 2014 were analyzed. We described the history and severity of injury, emergency treatment, and fracture radiology. In all the cases, the surgical treatment and postoperative functional exercise were performed. We followed up all the cases on an average of 1.6 years, assessed the postoperative recovery and summed up the treatment experience. RESULTS All the 6 patients with fractures recovered without infection and nerve symptoms after surgery. Their X-rays showed good reduction of sacroiliac joints. All the cases were followed up on an average of 1.6 years. Six months after surgery, the Majeed scores were perfect in 2 cases, good in 2, fair in 1, and poor in 1. The patients with poor scores suffered persistent pain, and decreased physical activity, and when walking long distances, they needed a walking stick. The 2 patients with low scores could not resume the original work. CONCLUSION Pelvic injury associated with complete anterior sacroiliac joint dislocation is a special type of the pelvic injury since the managements during the emergency phase are difficult.The surgery should be done as early as possible, and the anterior approach is available for the reduction and fixation.
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Zhao YK, Wu HH, Luo DQ. Localized aquagenic acrokeratoderma on the right hand. GIORN ITAL DERMAT V 2015; 150:268-269. [PMID: 25502536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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Zou DY, Coudron TA, Wu HH, Gu XS, Xu WH, Zhang LS, Chen HY. Performance and Cost Comparisons for Continuous Rearing of Arma chinensis (Hemiptera: Pentatomidae: Asopinae) on a Zoophytogenous Artificial Diet and a Secondary Prey. JOURNAL OF ECONOMIC ENTOMOLOGY 2015; 108:454-461. [PMID: 26470156 DOI: 10.1093/jee/tov024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 01/11/2015] [Indexed: 06/05/2023]
Abstract
The impact of a zoophytogenous, insect-free artificial diet and a secondary prey, pupae of Chinese oak silk moth Antheraea pernyi (Guérin-Méneville) (Lepidoptera: Saturniidae), on the developmental rate, life history parameters, and fertility was examined for F6, F9, and F12 consecutive generations for domesticated Arma chinensis (Fallou) (Heteroptera: Pentatomidae). This study showed that when fed an insect-free artificial diet during both the nymphal and adult stages, developmental times were prolonged, and fecundity, egg viability, net reproductive rates (R0), and intrinsic rates of increase (rm) declined. As a result, the cost to rear A. chinensis on the artificial diet approached 1.7 times the cost of rearing A. chinensis on pupae of A. pernyi. Future diet improvements should attempt to reduce developmental time, increase fecundity, and egg viability and use less costly nutrient sources.
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He Y, Li J, Wu HH, Chai X, Yang J, Wang YF, Zhang P, Zhu Y, Gao XM. A new caffeoylgluconic acid derivative from the nearly ripe fruits of Evodia rutaecarpa. Nat Prod Res 2015; 29:1243-8. [DOI: 10.1080/14786419.2015.1024116] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wu XB, Yang MH, Zhu SW, Cao QY, Wu HH, Wang MY, Cuellar DO, Mauffrey C. Surgical resection of severe heterotopic ossification after open reduction and internal fixation of acetabular fractures: a case series of 18 patients. Injury 2014; 45:1604-10. [PMID: 24917211 DOI: 10.1016/j.injury.2014.05.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 05/15/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the clinical results of surgical resection of severe heterotopic ossification (HO) after the open reduction and internal fixation (ORIF) of acetabular fractures. METHODS A retrospective chart review was performed between October 2005 and November 2010 on patients undergoing severe HO resection following an acetabular fracture ORIF. Our primary outcome was functional status evaluated by the Harris hip score (HSS). HO resection and hip release was performed using a Kocher-Langenbeck approach in all cases, and a combined radiation and indomethacin regimen was used to prevent HO recurrence. Plain radiographs were also used to evaluate the hip joint for arthritic changes and HO recurrence. RESULTS A total of 18 patients (17 males and 1 female) were included in our study analysis. The mean patient age was 36.8 (range: 22-54 years old) when HO resection surgery was performed. The mean time interval between acetabular fracture ORIF and HO resection was 9.9 months (range: 3-30 months): it was within 6 months in 7 patients, 6-12 months in 8 patients, and >12 months in 3 patients. The HO was graded as Brooker grade III in 8 patients and grade IV in 10 patients. The mean time interval between HO resection and the latest follow-up was 4.5 years (range: 2.1-7.8 years). The mean Harris hip score (HHS) was 84.5 (range: 38-100), with a clinical outcome rating of excellent in 9 patients, good in 3 patients, fair in 4 patients, and poor in 2 patients (good and excellent rating accounted for 66.7%). The mean hip joint motion arc was 194° (range: 90-260°). Complications included one intraoperative femoral neck fracture, 1 sciatic nerve injury, 2 femoral head avascular necrosis, and 6 mild HO recurrences (33.3%). There was 28.6% recurrence if HO resection was within 6 months and 36.4% if >6 months. There were no cases of severe HO recurrence, wound infections, deep vein thrombosis, or pulmonary embolism. CONCLUSION The early surgical resection of severe HO after an acetabular fracture ORIF can provide satisfactory results, however the complication rate is relatively high.
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Chen S, Lin J, Wang X, Wu HH, Cramer H. EUS-guided FNA cytology of pancreatic neuroendocrine tumour (PanNET): a retrospective study of 132 cases over an 18-year period in a single institution. Cytopathology 2014; 25:396-403. [PMID: 24635775 DOI: 10.1111/cyt.12137] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/26/2013] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To determine the diagnostic accuracy and pitfalls of endoscopic ultrasound (EUS)-guided fine needle aspiration (FNA) cytology of pancreatic neuroendocrine tumour (PanNET). METHODS A search of our laboratory information system was performed from July 1992 to June 2010 to identify all FNA cytology and corresponding surgical specimens in which the diagnosis of PanNET was rendered or considered. RESULTS One hundred and thirty-two cases diagnosed by EUS-guided FNA were collected. Histological correlation was available for 77 (58%) of FNAs; 55 patients may have been treated elsewhere or had no surgery because of advanced disease or co-morbidity. Among 56 cases diagnosed as PanNET on FNA, 54 (96%) were confirmed histologically; the remaining two were poorly differentiated adenocarcinoma with focal neuroendocrine features in one case and no tumour was found in the other. Follow-up histology of nine patients diagnosed as suspicious for PanNET on FNA showed four PanNETs, two pancreatic ductal adenocarcinomas (PDA), one solid pseudopapillary tumour (SPT) and two cases of chronic pancreatitis. Nine cases rendered by FNA as atypical (n = 3), no atypical cells identified (n = 4) or unsatisfactory (n = 2) were PanNETs on histology. Lastly, three cases of oncocytic variant of PanNET were misdiagnosed on FNA as either adenocarcinoma (n = 2) or as suspicious for carcinoma (n = 1). CONCLUSIONS Overall, 54 of the 70 histologically confirmed PanNET cases (77%) were correctly diagnosed by preoperative FNA as PanNET. FNA cases designated as no atypical cells identified and unsatisfactory (7/132, 5%) were attributable to sampling error. Diagnostic pitfalls in our study mainly included PDA, SPT and chronic pancreatitis.
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Kang X, Xie QY, Zhou JS, Zhang B, Liao DF, Wu HH, Zheng W, Pan XM, Quan Y. C/EBP-α, involvement of a novel transcription factor in leptin-induced VCAM-1 production in mouse chondrocytes. FEBS Lett 2014; 588:1122-7. [PMID: 24582795 DOI: 10.1016/j.febslet.2014.02.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/07/2013] [Accepted: 02/14/2014] [Indexed: 11/16/2022]
Abstract
Leptin and vascular cell adhesion molecules-1 (VCAM-1) are two important mediators in obesity-related osteoarthritis, while the molecular mechanism linking leptin to VCAM-1 production is still obscure. Here we show that leptin upregulates VCAM-1 mRNA and protein levels in a time- and dose-dependent manner. Mechanistically, leptin induces VCAM-1 promoter activity by increasing the expression of C/EBP-α and facilitating its binding to a newly identified element in the VCAM-1 gene. Gain or loss of function studies reveal a regulatory role of C/EBP-α on VCAM-1 expression. Finally, elevated plasma leptin level correlates to increased C/EBP-α and VCAM-1 production in chondrocytes from obese mice.
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Zhang YP, Song DN, Wu HH, Yang HM, Zhang JZ, Li LJ, Ma EB, Guo YP. Effect of dietary cadmium on the activity of glutathione S-transferase and carboxylesterase in different developmental stages of the Oxya chinensis (Orthoptera: Acridoidea). ENVIRONMENTAL ENTOMOLOGY 2014; 43:171-177. [PMID: 24342000 DOI: 10.1603/en13025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Glutathione S-transferases (GSTs) and carboxylesterases (CarEs) play important roles in the detoxification of endogenous and exogenous compounds. In this study, the biochemical effects of dietary cadmium (Cd) on the activities of GST and CarE in different developmental stages of the rice grasshopper Oxya chinensis Thunberg were studied. The results showed that the effects of the Cd concentration and developmental stage on GST activity were statistically significant. GST activity in O. chinensis increased at the highest Cd concentration in most nymphs, suggesting that GST is typically inducible by Cd. However, GST activity was inhibited in adults under Cd stress owing to life-stage-specific physiological characteristics. The results showed that the substrates, developmental stage, and Cd concentration had statistically significant effects on CarE activity. In most studies of CarE activity, the interaction between any two studied factors was statistically significant, although the interaction effects of the substrates, developmental stages, and Cd concentrations were not significant, which implied that the insect physiological condition and the external environmental may affect CarE activity. The results suggest that the insect's life stage and enzyme substrates should be considered when enzyme activity under Cd stress is studied.
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Zhang XL, Sun J, Wu HH, Jing YK, Chai X, Wang YF. A new indoloquinazoline alkaloidal glucoside from the nearly ripe fruits of Evodia rutaecarpa. Nat Prod Res 2013; 27:1917-21. [DOI: 10.1080/14786419.2013.791823] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Li YJ, Wu HH, Weng CH, Chen YC, Hung CC, Yang CW, Wang RYL, Sakamoto N, Tian YC. Cyclophilin A and nuclear factor of activated T cells are essential in cyclosporine-mediated suppression of polyomavirus BK replication. Am J Transplant 2012; 12:2348-62. [PMID: 22642569 DOI: 10.1111/j.1600-6143.2012.04116.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Immunosuppressants have impacts on the development of polyomavirus-associated nephropathy. We previously demonstrated that cyclosporin A (CsA) suppressed polyomavirus BK (BKV) replication. The role of cyclophilin A (CypA) and nuclear factor of activated T cells (NFAT) in CsA-imposed suppression of BKV replication was determined in this study. Results demonstrated that knockdown of CypA but not CypB significantly reduced BKV large T antigen (TAg) expression and BKV titer. Overexpression of CypA reversed CypA siRNA-induced inhibition in BKV TAg expression. In addition, CypA overexpression attenuated the suppressive effect of CsA on TAg expression, suggesting CypA implicated in CsA-mediated anti-BKV effect. Knockdown of NFATc3 abrogated TAg expression, while overexpression of NFATc3 promoted TAg expression and augmented BKV promoter activity. NFATc3 binding to the BKV promoter was verified by chromatin immunoprecipitation assay and electrophoretic mobility shift assay. Renal histology also displayed an increase in NFATc3 expression in tubulointerstitium of BKV-associated nephropathy. Furthermore, overexpression of NFATc3 rescued CsA-mediated inhibition of BKV load and TAg expression. A CsA analog, NIM811, which cannot block NFAT functionality, failed to suppress TAg expression. In conclusion, CypA and NFAT are indispensable in BKV replication. CsA inhibits BKV replication through CypA and NFAT, which may be potential targets of anti-BKV treatment.
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Sun XY, Wu HH, Fu AZ, Zhang P. [Chemical constituents of Trichosanthes kirilowii Maxim]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 2012; 47:922-925. [PMID: 22993858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
To study the chemical constituents of Trichosanthes kirilowii Maxim., chromatographic methods such as D101 macroporous resin, silica gel column chromatographic technology, Sephadex LH-20, octadecylsilyl (ODS) column chromatographic technique and preparative HPLC were used and nine compounds were isolated from a 95% (v/v) ethanol extract of the plant. By using spectroscopic techniques including 1H NMR, 13C NMR, 1H-1H COSY, HSQC and HMBC, these compounds were identified as 5-ethoxymethyl-1-carboxyl propyl-1H-pyrrole-2-carbaldehyde (1), 5-hydroxymethyl-2-furfural (2), chrysoeriol (3), 4'-hydroxyscutellarin (4), vanillic acid (5), alpha-spinasterol (6), beta-D-glucopyranosyl-a-spinasterol (7), stigmast-7-en-3beta-ol (8), and adenosine (9), separately. Among them, compound 1 is a new compound, and compounds 3, 4 and 5 are isolated from the genus Trichosanthes kirilowii Maxim. for the first time.
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Chen G, Tian L, Wu HH, Bai J, Lu X, Xu Y, Pei YH. Secondary metabolites from fungus Nigrospora sp. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 14:759-763. [PMID: 22694214 DOI: 10.1080/10286020.2012.691094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Six compounds were purified from the extracts of fungus Z18-17 (Nigrospora sp.) isolated from Scyphiphora hydrophyllacea, a tree from the intertidal zone of Shankou, Guangxi Province of China, which was reported to have cytotoxic activity. Systematic study on the chemical constituents of Nigrospora sp. resulted in the isolation of one new 6-phenylhexanoic acid derivative, one new derivative of uridine, and four known compounds. Their structures were characterized, respectively, as methyl 5-acetamido-6-(4-hydroxyphenyl)-4-oxohexanoate (1), uridine-5'α-hydroxypropanoate (2), 4-hydroxyphenethyl 2-hydroxypropanoate (3), methyl pyroglutamate (4), cyclo (Pro-Val) (5), and cyclo (Phe-Hyp) (6). The cytotoxic activities of the two new compounds against HL-60 cell line were tested and the IC(50) values of the two new compounds were all over 100 μM.
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Zhang L, Chen G, Wu HH, Lu X, Pei YH, Wu X, Pan B, Hua HM, Bai J. Two new compounds from an endophytic fungus Aspergillus sp. HS-05. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2011; 13:225-229. [PMID: 21409683 DOI: 10.1080/10286020.2010.550885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Two new compounds, N-[4'-hydroxy-(E)-cinnamoyl]-l-tyrosine methyl ester (1) and methyl 4-methoxy-3-(3'-hydroxy-2'-methyl)propionyloxy-benzoate (2), were isolated from EtOAc extract of the fermentation broth of the endophytic fungus Aspergillus sp. HS-05. Their structures were elucidated by NMR, IR, UV, MS, and CD methods. Compounds 1 and 2 showed no anticancer activities against HL-60 cell lines (both of IC(50)>100 μM) in vitro.
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Chen G, Xu N, Li ZF, Zhang QH, Wu HH, Pei YH. Steroidal glycosides with anti-tumor activity from the roots of Cynanchum wallichii Wight. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2010; 12:453-457. [PMID: 20552483 DOI: 10.1080/10286020.2010.489821] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Two new steroidal glycosides characterized with 2,6-dideoxypyranoses as component sugars have been isolated from roots of Cynanchum wallichii Wight. Their structure elucidation and cytotoxic activities against HL-60 and PC-3 cells are reported.
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Wu HH, Tian L, Feng BM, Li ZF, Zhang QH, Pei YH. Three new compounds from the marine fungus Penicillium sp. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2010; 12:15-19. [PMID: 20390738 DOI: 10.1080/10286020903442020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Continuous research on the ethyl acetate extract of the fermentation broth of the marine fungus Y26-02 (Penicillium sp.) led to the purification of one known and three new compounds. Their structures were elucidated, respectively, as butyl 2-(4-oxo-5,6-dihydro-2H-pyran-3-yl) acetate (1), 4-hydroxyphenethyl 2-(4-oxo-5,6-dihydro-2H-pyran-3-yl) acetate (2), 3-hydroxybenzyl 2-(4-oxo-5,6-dihydro-2H-pyran-3-yl) acetate (3), and desoxypatulinic acid (4) on the basis of their spectroscopic and physico-chemical properties.
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Wang YN, Tian L, Hua HM, Lu X, Sun S, Wu HH, Pei YH. Two new compounds from the broth of the marine fungus Penicillium griseofulvum Y19-07. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2009; 11:912-917. [PMID: 20183253 DOI: 10.1080/10286020903219923] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Two new compounds, 4-hydroxyphenethyl methyl succinate (1) and 4-hydroxyphenethyl 2-(4-hydroxyphenyl)acetate (2), were isolated from the EtOAc extract of the broth of the marine fungus Penicillium griseofulvum Y19-07. Five known compounds were also obtained in this study. The structures of the new compounds were elucidated by 1D and 2D NMR spectroscopy and mass spectrometry. All of the isolates were evaluated for their scavenging properties toward the 2,2-diphenyl-1-picrylhydrazyl free radical by spectroscopic assays. Also, in the cytotoxicity assay of the two new compounds against HL-60 and PC-3 prostate cancer cell lines, compound 2 showed potential activity with an IC(50) value of 64.5 microM against human HL-60 cancer cells.
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Sun S, Tian L, Wu ZH, Chen G, Wu HH, Wang YN, Pei YH. Two new compounds from fermentation liquid of the marine fungus Trichoderma atroviride G20-12. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2009; 11:898-903. [PMID: 20183251 DOI: 10.1080/10286020903193102] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The chemical constituent research on the ethyl acetate extracts of fermentation liquid of the marine fungus Trichoderma atroviride G20-12 led to the isolation of two new compounds, 2-hydroxybutan-3-yl 5'-(2''-hydroxy-N-(2'''-oxobutan-3'''-yl)propanamido)butanoate (1) and 3-hydroxy-5-(4-hydroxybenzyl)dihydrofuran-2(3H)-one (2). The structures of the new compounds were determined by spectroscopic and chemical analysis.
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Wu HH, Tian L, Chen G, Xu N, Wang YN, Sun S, Pei YH. Six compounds from marine fungus Y26-02. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2009; 11:748-751. [PMID: 20183318 DOI: 10.1080/10286020903025783] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Two new compounds, together with four known compounds, have been isolated from the ethyl acetate extract of the fermentation broth of the marine fungus Y26-02. Their structures were elucidated, respectively, as 5-(ethynyloxy)-3-hydroxy-3,6-dihydro-2H-pyran-2-one (1), 4-(butoxymethyl)benzene-1,2-diol (2), 4-(methoxymethyl)benzene-1,2-diol (3), 2-acetoxymethylphenol (4), N-(2-phenylethyl)acetamide (5), and 4-hydroxyphenethyl acetate (6) on the basis of their spectroscopic and physico-chemical properties.
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Sung HH, Wu HH, Syu KJ, Lee WH, Chen YY. A new Kondo antiferromagnet Ce(Ni(0.25)In(1.75)). JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2009; 21:176004. [PMID: 21825440 DOI: 10.1088/0953-8984/21/17/176004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We find that Ce(Ni(0.25)In(1.75)) crystallizes in the hexagonal AlB(2)-type structure with lattice parameters a = 0.4850(5) nm and c = 0.3908(5) nm. Magnetic susceptibility, electrical resistivity and low-temperature specific heat data reveal that the bulk phase transition at 3.7 ± 0.2 K in Ce(Ni(0.25)In(1.75)) is to an antiferromagnetic state. The magnetic contribution to the resistivity ρ(mag) of Ce(Ni(0.25)In(1.75)) increases as ln(T) when temperature is lowered from room temperature and reaches a plateau at 9 K, followed by a rapid decrease around 4 K. These results associated with a reduction of the Ce magnetic moment and of the magnetic entropy at T(N) suggest that Ce(Ni(0.25)In(1.75)) could be a Kondo antiferromagnet. The Kondo temperature is estimated to be of order 6 K.
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