1.Mechanism of phytochemicals as anticancer agents in parcreatic carcinoma
Junqiang DANG ; Yuan CHEN ; Wen LIN ; Changbin LI
Journal of International Oncology 2014;41(12):930-933
Pancreatic cancer remains a devastating disease with a 5-year survival rate of less than 5%.Recent advances in diagnostic methods and therapeutic approaches have increased the possibility of improving the existing poorprognosis.Recently,compounds from naturalsources receive ample attention as anti-cancer agents.Overwhelming in vitro evidence and clinical trials suggest that curcuminn,isothiocyanate,capsaicin,catechin may reduce the incidence of cancer.
2.Effects of pre-treatment on Cu2+ absorption of Penicillium janthinellum strain GXCR.
Xiaoting HUANG ; Changbin SUN ; Xiaoling CHEN ; Huijuan QIN ; Mei HU ; Yuan YUAN ; Youzhi LI
Chinese Journal of Biotechnology 2009;25(1):76-83
In order to effectively increase capacity of Cu2+ absorption by Penicillium from Cu2+-containing aqueous solution and to study the mechanisms of absorption, effects of eight pre-treatment methods on Cu2+ absorption of Penicillium janthinellum strain GXCR were compared. The results showed that the efficiency of Cu2+ absorption obviously increased through pre-treatment by homogenization, homogenization-basification (NaOH), oven dry (80 degrees C), homogenization-salinification (NaCl), homogenization-detergent and homogenization-polarization (C2H6SO), but significantly decreased after acidification pretreatment with H2SO4. In comparison with the previous reports, the pretreatment in a homogenization-NaOH way could more efficiently enhance the Cu2+ absorption capacity of this fungus. Homogenization-basification (0.5 mol/L NaOH) increased Cu2+ biosorption by 47.95%. The Cu2+ absorption of the mycelia treated by homogenization-basification followed Langmuir isotherm equation, suggesting a surface absorption process. After four cycles of absorption-desorption, mycelia pretreated by homogenization-alkalization still had 70.82% of Cu2+ biosorption efficiency. Infrared reflectance analysis indicated that alkalization treatment made marked effects on molecular groups of C-H, C=O, and C=O in COOH on the mycelial surfaces, and -OH was a key Cu2+-binding group. It is therefore suggested that the Cu2+ absorption by the GXCR is likely to be a chemical absorption process through Cu2+ binding with -OH group on the mycelia.
Adsorption
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Biodegradation, Environmental
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Copper
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metabolism
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Penicillium
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metabolism
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Physical Phenomena
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Sodium Hydroxide
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chemistry
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Waste Disposal, Fluid
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methods
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Water Pollutants, Chemical
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metabolism
3.The mass spectrometry analysis of serum biomarker 32 kD protein in first episode-schizophrenia
Ruixu HUAN ; Wan XING ; Yuan WENBIN ; Liang JINGWEN ; Luo YI ; Li KANG ; Liao CHANGZHENG ; Xu WENLI ; Ye CHANGBIN ; Zhu LEI ; Qi LIGUO
Chinese Journal of Nervous and Mental Diseases 2015;(8):482-486
Objective To analyze the constituent of the 32 kD protein band and its expression in schizophrenia se?rum. Methods Sixty schizophrenia patients and 58 health controls were recruited. The serum samples were collected and precipitated with 7%PEG. The sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) was used to ob?tain the abnormal 32 kD proteins band in patients. This protein band was cut and then analyzed using mass spectrometric technique. Results The 32 kD protein band was present in 38 schizophrenia patients but not in control and positive rate was 63.33%. The mass spectrometric analysis showed that 32 kD protein band contained 14 proteins ranging from 30 kD to 35 kD, including 6 high-frequency proteins (cDNA coded protein 1 and 2, Apolin protein A-1, Isoform 2 of ficolin-2, Complement factor H and clusterin) and 8 low-frequency proteins (IgG H chain, zinc-alphg-2-glycoprotein, fermitin,family apolin protein L-1, isoform 10 of collectin-1, purine nucleoside, anne xin and cDNA coded protein 3). Three cD?NA coded unknown proteins were highly similar to complement C4-B, β2-glycoprotein and erythrocyte band 7 integral membrane protein. Conclusion There is a unknown specific 32 kD protein that is consisted mainly of fourteen proteins in serum of schizophrenia.
4.Study on Metabolomics of Stable Angina Pectoris of Coronary Artery Heart Disease with Spleen Deficiency and Phlegm Turbidity Syndrome Based on LC-MS
Changbin YUAN ; Yuzhu YAO ; Yongming LIU ; Meijia CHENG ; Simeng XIE ; Yetao JU ; Shiyu ZHANG ; Yifan ZENG ; Huiyong ZHANG ; Guanlin YANG ; Dongyu MIN
World Science and Technology-Modernization of Traditional Chinese Medicine 2023;25(9):3105-3113
Objective To analyse the differential metabolites and related metabolic pathways in stable angina pectoris of coronary artery heart disease with spleen deficiency and phlegm turbidity syndrome by serum metabolomics.Methods This study observed 60 patients with stable angina pectoris of coronary artery heart disease with spleen deficiency and phlegm turbidity syndrome and 60 healthy volunteers in the same period.Liquid chromatography-mass spectrometry(LC-MS)was performed on the serum metabonomics.The differential metabolites were identified by multivariate statistical analysis of the original spectrogram and original data,and enrichment analysis of KEGG metabolic pathway was analyzed.Results A total of 60 patients in the group of stable angina pectoris of coronary artery heart disease with spleen deficiency and phlegm turbidity syndrome participated in the study,and a total of 60 healthy volunteers in the control group participated in the study.There was no statistical difference in general information and biochemical indicators between the two groups(P>0.05);Eighteen differential metabolites were found respectively,including phenylacetaldehyde,orthophosphate,guanosine,diethyl phosphate,2-dehydro-d-gluconate,guanine and 5-(2-hydroxyethyl)-4-methylthiazole down-regulated expression,taurocholate,2-propylglutaric acid,8-amino-7-oxononanoate,l-tyrosine,s-sulfo-l-cysteine,cyclohexanecarboxylic acid,porphobilinogen,(r)-acetoin,octanoylglucuronide,melatonin and solanine up-regulated expression,involving phenylalanine metabolism,thiamine metabolism,purine metabolism.Conclusion The differential metabolites reveal the metabolic essence of stable angina pectoris of coronary artery heart disease with spleen deficiency and phlegm turbidity syndrome from the micro level,and can provide clues for clinical early warning of patients with stable angina pectoris of coronary artery heart disease with spleen deficiency and phlegm turbidity syndromet.