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New Amide N-glycosides of Ansamitocins Identified from Actinosynnema pretiosum
Ma, Juan,Zhao, Pei-Ji,Shen, Yue-Mao 대한약학회 2007 Archives of Pharmacal Research Vol.30 No.6
By using preparative TLC as the critical isolation procedure, two compounds, including one new amide N-glycosides of ansamitocin (2), were isolated from Actinosynnema pretiosum. The compounds were elucidated as N-demethyl-N-${\beta}$-D-glucopyranosyl ansamitocin P-2, named ansamitocinoside P-2 (1), and N-demethyl-N-${\beta}$-D-glucopyranosyl ansamitocin P-1, named ansamitocinoside P-1 (2) on the basis of their spectral data. The $^1$H-NMR and $^{13}$C-NMR assignments were made for 1 and 2 while the $^{13}$C-NMR assignment for 1 was revised. Bioassay results showed that 1 had antineoplastic activity.
New Amide N-glycosides of Ansamitocins Identified from Actinosynnema pretiosum
Juan Ma,Pei-Ji Zhao,Yue-Mao Shen 대한약학회 2007 Archives of Pharmacal Research Vol.30 No.6
By using preparative TLC as the critical isolation procedure, two compounds, including one new amide N-glycosides of ansamitocin (2), were isolated from Actinosynnema pretiosum. The compounds were elucidated as N-demethyl-N-β-D-glucopyranosyl ansamitocin P-2, named ansamitocinoside P-2 (1), and N-demethyl-N-β-D-glucopyranosyl ansamitocin P-1, named ansamitocinoside P-1 (2) on the basis of their spectral data. The 1H-NMR and 13C-NMR assignments were made for 1 and 2 while the 13C-NMR assignment for 1 was revised. Bioassay results showed that 1 had antineoplastic activity.
Biomarkers Screening Between Preoperative and Postoperative Patients in Pancreatic Cancer
Li, Pei,Yang, Juan,Ma, Qing-Yong,Wu, Zheng,Huang, Chen,Li, Xu-Qi,Wang, Zheng Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.7
Objective: To investigate discriminating protein patterns and potential biomarkers in serum samples between pre/postoperative pancreatic cancer patients and healthy controls. Methods: 23 serum samples from PC patients (12 preoperative and 11 postoperative) and 76 from healthy controls were analyzed using matrix-assisted laser desorption and ionization time-of-flight mass spectrometry (MALDI-TOF MS) technique combined with magnetic beads-based weak cation-exchange chromatography (MB-WCX). ClinProTools software selected several markers that made a distinction between pancreatic cancer patients and healthy controls. Results: 49 m/z distinctive peaks were found among the three groups, of which 33 significant peaks with a P < 0.001 were detected. Two proteins could distinguish the preoperative pancreatic cancer patients from the healthy controls. About 15 proteins may be potential biomarkers in assessment of pancreatic cancer resection. Conclusion: MB-MALDI-TOF-MS method could generate serum peptidome profiles of pancreatic cancer and provide a new approach to identify potential biomarkers for diagnosis and prognosis of this malignancy.
Hu Ni-juan,Li Chun-hua,Wang Pei,Wu Gui-wen,Ma Liang-xiao,Zhu Jiang 사단법인약침학회 2023 Journal of Acupuncture & Meridian Studies Vol.16 No.1
Background: De qi , the needling sensation, is important in acupuncture treatment. Almost all studies believe that deep needling and manipulation could achieve a significant de qi sensation. However, relatively few studies have examined the effect of psychological factors on de qi, and those that did often reached different conclusions. Objectives: To explore the influence of psychologic factors on de qi in patients with primary dysmenorrhea (PD). Methods: Sixty-eight PD patients with cold and dampness stagnation were randomly allocated to de qi (deep insertion using thick needles, with manipulation, n=17) and non-de qi groups (shallow insertion using thin needles, without manipulation, n=51). Both groups received bilateral needling at Sanyinjiao (SP6) for 30 min. De qi was assessed using the Acupuncture De qi Clinical Assessment Scale (ADCAS). The patients’ acupuncturerelated anxiety and their expectations of the relationship between needle sensation and curative effect were evaluated using a five-point and four-point scale, respectively. Results: Within the de qi group, all patients experienced the de qi sensation, although anxiety levels were unrelated to de qi. Patients’ expectations correlated negatively with de qi timing, and positively with electric sensation. Within the non-de qi group, 59.5% of patients experienced de qi. Between those who experienced it and those who did not, no significant differences were found in anxiety levels, although patients’ expectations differed significantly. Among patients who experienced de qi sensations in the non-de qi group, anxiety and throbbing were positively correlated. Additionally, patients’ expectations correlated positively with de qi intensity, as well as coldness, and numbness. Conclusion: Psychological factors should be considered when studying de qi since PD patients’ expectations could influence the de qi sensation at SP6.