1.Rapid identification of chemical constituents in Salvia chinensis by HPLC-TOF-MS.
Yan-Ni ZHOU ; Liang ZHAO ; Lei ZHENG ; Lei LV
China Journal of Chinese Materia Medica 2013;38(23):4109-4112
It's established a high-performance liquid chromatography-time of flight mass spectrometry(HPLC-TOF-MS) method to analyze chemical constituents in Salvia chinensis. The separation was performed on a SHISEIDO MG C18 reverse phase column (3.0 mm x 100 mm, 3 microm). The mobile phase consisted of acetonitrile (A) and water (containing 0.1% formic acid, B) was used as gradient elute. The gradient of a phase, 10%-90% (0-33 min), 90% (33-40 min). The flow rate was 0.6 mL x min(-1). Post-column split ratio was 2:1. Temperature of column was 25 degrees C. Time-of-flight mass spectrometer (TOF-MS) and electrospray ion source (ESI) was applied for qualitative analysis under positive ion mode, and mass scan range was m/z 100-1 000. As a result,28 of the major chemical constituents of S. chinensis were identified by HPLC-TOF-MS. In this study, a rapid and efficient method for studying the chemical constituents in S. chinensis by HPLC-TOF-MS was established, which paves a way for the quality control and further studies of the herb in vivo.
Chromatography, High Pressure Liquid
;
Mass Spectrometry
;
Organic Chemicals
;
analysis
;
isolation & purification
;
Salvia
;
chemistry
;
Solvents
;
chemistry
;
Time Factors
2.Comparative study of assessment of pain among medical and nursing staff and cancer patients
Furong CHEN ; Chengmei YAN ; Ni LI ; Bi ZHAO ; Yuzhen ZHOU
Chinese Journal of Practical Nursing 2008;24(16):11-13
Objective This study aimed to discuss the different assessment of pain among medical and nursing staff and cancer patients and supply reference for proper analgesic precept for clinical application and nursing measures. Methods We collected the assessment of psychological pain and physiological pain by 55 hospitalization cancer patients, 40 physicians in-charge and 55 nurses in-charge in one week by Johnson inventory. The assessment results were compared and at the same time the relevant problems of the attitude to cancer pain by patients was also investigated. Results Improper recognition existed in cancer pain treatment by most cancer patients. The physiological pain was higher than the psychological pain assessed by both patients and nurses (P<0.05). But the pain assessment by patients was higher than that by the nurses (P<0.05). The assessment of psychological pain was higher than the physiological pain by doctors and both aspects were lower than those by patients, but no statistical difference was seen (P>0.05). The assessment by doctors was more accurate than that by nurses. Conclusions Routine establishment of pain assessment inventory for patients could instruct patients how to record the degree of their pain. We should strengthen the standard training about pain management knowledge and give timely communication with patients' cancer pain.
3.CT and Chest Radiographic Manifestations of Pulmonary Aspergilloma
Daiquan YAN ; Xiuhua LIU ; Zhigang LIU ; Zhigang NI ; Guocheng ZHAO
Journal of Practical Radiology 1991;0(03):-
Objective To enhance the knowledge of pulmonary aspergilloma on CT and chest radiography. Methods CT scans and chest radiographs of 10 cases with pulmonary aspergilloma were reviewed retrospectively. Of these 10 patients,9 were men,1 was woman, ranged in age from 25~55 years old(means 36.4 years old).Results Of 10 cases,8 cases manifested themselves as an oval or round masses .9 cases were located both upper lobes. Air crescent sign or air ring sign were shown in all 10 cases. The fungus ball could move with the change of patient’s body position in 3 cases.Conclusion A mobile intracavitary mass with air crescent sign or air ring sign is the imaging characteristic of pulmonary aspergilloma.
4.Practice and experience of training model based on automated breast ultrasound system
Hongping SONG ; Jingru YAN ; Ni ZHAO ; Liwen LIU
Chinese Journal of Medical Education Research 2021;20(2):186-189
The new ultrasound device, automated breast ultrasound (ABUS), has the advantages of repeatable reading of standardized whole breast images, and can separate ultrasound scanning and diagnosis. ABUS is more suitable for breast ultrasound training. This study compared the breast ultrasound imaging training model with ABUS diagnosis practice as the core and the traditional breast ultrasound imaging training model with handhold ultrasound operation and diagnosis as the core, and found that the new training model with ABUS diagnosis practice as the core had a short training period. The diagnostic level of doctors have improved rapidly, and the new training model could efficiently train more technically qualified ultrasound doctors for breast disease.
5.Repetitive variable deceleration with a short interval in labor and neonatal acidosis
Lian CHEN ; Yan WANG ; Yangyu ZHAO ; Shufang LI ; Pengbo YUAN ; Shenglian NI ; Yan ZHAO
Chinese Journal of Perinatal Medicine 2015;18(9):656-660
Objective To discuss the relationship between repetitive variable deceleration with a short interval (RDSI) in labor and neonatal acidosis.Methods One hundred and seventy-seven electronic fetal heart monitoring (EFM) patterns within one hour preceding delivery in term singleton pregnancies were collected in Peking University Third Hospital between February 2011 to October 2013.Continued EFM were recorded before delivery.Analysis was conducted on general information of both mothers and babies,including pregnant complications,duration of labor,cord and placental factors,nature of amniotic fluid,Apgar score and neonatal cord blood gas.RDSI was defined as that over 50% intervals between two decelerations (the end of the last deceleration to the beginning of the next one) ≤ 60 s which appeared repetitevly in a period of 20 minutes.Independent sample t test,rank sum test,Chi-square test and Fisher's exact test were applied for statistics and receiver operating characteristic curve was obtained from the information of those with RDSI.Results Twenty-four of the 177 women with RDSI were assigned to the study group (24 cases,13.6%) and the rest 153 cases without RDSI to the control group.Background information of women in the two groups was comparable according to the maternal age,gestational weeks at delivery and duration of labor (all P > 0.05).The occurrence of meconium stained amniotic fluid in the study group was higher than that of the control group [16.7% (4/24) vs 5.2% (7/153),x2=5.204,P=0.045],while the pH and base excess value of the neonatal blood gas in the study group were lower [7.20 (7.13-7.28) vs 7.29 (7.25-7.33),Z=-4.490;-6.10 (-4.67 to-9.62) mmol/L vs-3.20 (-4.90 to-1.55) mmol/L,Z=-5.044;P ≤ 0.01] resulting a higher rate of neonatal acidosis [50.0%(12/24) vs 7.8% (12/153),x2=31.456,P < 0.01].No significant difference was found in the incidence of neonatal asphyxia between the two groups.The area under the curve was 0.774 (95%CI:0.579-0.969).Conclusion RDSI in labor might indicate a high risk of neonatal acidosis.
6.Research and development of Fructus Gardeniae.
Hui-Yan NI ; Zhao-Hui ZHANG ; Hai-Zhen FU
China Journal of Chinese Materia Medica 2006;31(7):538-541
Survey on research and development of Fructus Gardeniae in the recent 10 years. Gardenia yellow has been used for food colorent, medicine, feedingstuff and cosmetic. Garnedia blue has been used for developing another pigment with red and yellow. Fructus Gardeniae has been used in digestive system for cholecyst constracting and gall-stone eliminating, for declining peroxide on SAP mouse and increasing immune ability, for protecting liver against cancel, anti-acetylcholinic restraining on stomach enginery, in cardiovascular system it has been used for centrally anti-hypertension, preventing atheroma and thrombus, also Fructus Gardeniae has been used for anti-inflammation, treating parenchyma injure etc. Geniposide used for increasing production in agriculture has wider perspect.
Analgesics
;
pharmacology
;
Animals
;
Anti-Inflammatory Agents, Non-Steroidal
;
pharmacology
;
Antihypertensive Agents
;
pharmacology
;
Bile
;
secretion
;
Drugs, Chinese Herbal
;
isolation & purification
;
pharmacology
;
Food Coloring Agents
;
toxicity
;
Fruit
;
chemistry
;
Gardenia
;
chemistry
;
toxicity
;
Gastric Acid
;
secretion
;
Humans
;
Lipid Peroxidation
;
drug effects
;
Plant Extracts
;
isolation & purification
;
toxicity
;
Plants, Medicinal
;
chemistry
8.Chemical constituents from Crepis crocea.
Yuan-yuan LI ; Zhao-qi PENG ; Shi-lin HE ; Yan NI ; Xu-liang HAO
China Journal of Chinese Materia Medica 2015;40(19):3800-3804
Thirteen compounds were isolated from the ethyl acetate fraction of Crepis crocea by column chromatographies on silica gel, Sephadex LH-20 and semi-preparative HPLC. The structures were elucidated on the basis of spectral analysis as tectorone I (1), 8β- (2-methyl- 2-hydroxy-3-oxobutanoyloxy) -glucozaluzanin C (2), tectoroside (3), luteolin-7-O-glucoside (4), cosmosiin (5), esculetin (6), 3,4-dihydroxybenzaldehyde (7), trans-4-hydroxycinnamic acid (8), Caffeic acid (9), methyl p-hydroxyphenyllactate (10), ethylp- hydroxyphenyllactate (11), cis-3,4-dihydroxy-β-ionion (12). All the compounds, except for compounds 4 and 9, were isolated from this plant for the first time, and tectorone I (1) is a new natural product.
Crepis
;
chemistry
;
Drugs, Chinese Herbal
;
chemistry
;
isolation & purification
;
Mass Spectrometry
;
Molecular Structure
9.Synthesis and anti-proliferative activity of fluoroquinolone (rhodanine unsaturated ketone) amide derivatives.
Liuzhou GAO ; Yusuo XIE ; Qiang YAN ; Shumin WU ; Lili NI ; Hui ZHAO ; Wenlong HUANG ; Guoqiang HU
Acta Pharmaceutica Sinica 2015;50(8):1008-12
To discover novel antitumor rhodanine unsaturated ketones, a series of fluoroquinolone (rhodanine α, β-unsaturated ketone) amine derivatives (5a-5r) were designed and synthesized with fluoroquinolone amide scaffold as a carrier. The structures of eighteen title compounds were characterized by elemental analysis, 1H NMR and MS. The in vitro anti-proliferative activity against Hep-3B, Capan-1 and HL60 cells was evaluated by MTT assay. The results showed that the title compounds not only had more significant anti-proliferative activity against three tested cancer cell lines than that of the parent ciprofloxacin 1, but also exhibited the highest activity against Capan-1 cells. The SAR revealed that some compounds carrying aromatic heterocyclic rings or phenyl attached to an electron-withdrawing carboxyl or sulfonamide substituent were comparable to or better than comparison doxorubicin against Capan-1 cells. As such, it suggests that fluoroquinolone (rhodanine α, β-unsaturated ketone) amines are promising leads for the development of novel antitumor fluoroquinolones or rhodanine analogues.
10.Expression and its clinical significance of Ki-67, P53, LATI in tissue of esophageal cancer and precancerous lesions
Bo DU ; Haifeng WEI ; Xuemei ZHAO ; Zhiqiang NI ; Yan TAN ; Yanqiu FANG
Chinese Journal of Immunology 2014;(11):1543-1545
Objective:To observe the expression of Ki-67,P53 and LAT1 in tissues of esophageal squamous cell carcinoma and precancerous lesions and to investigate its clinical significance.Methods: Immunohistochemical method was used to detect the expressions of Ki-67,P53 and LAT1 in tissues from 20 cases of normal esophageal mucosa,68 cases of precancerous lesions including 21 cases of mild atypical hyperplasia,22 cases of atypical hyperplasia,25 cases of severe atypical hyperplasia and cancer tissues from 34 esophageal cancer patients.The relationship between the expression of the three in esophageal carcinoma was analysed.Results: Re-spectively,the positive expression rate of Ki-67 in normal esophageal mucosa, mild atypical hyperplasia, moderate dysplasia, severe dysplasia and carcinoma was 0%( 0/20 ) , 23.8%( 5/21 ) , 40.9%( 9/22 ) , 76.0%( 19/25 ) , 82.4%( 28/34 ) and the positive expression rate of P53 was 0%(0/20),14.3%(3/21),31.8%(7/22),48.0%(12/25),67.6%(23/34) and the positive expression rate of LAT1 was 0%( 0/20 ) , 19.0%( 4/21 ) , 36.4%( 8/22 ) , 52.0%( 13/25 ) , 76.5%( 26/34 ).The rank correlation analysis showed that the positive expression of Ki-67,P53 and LAT1 were significantly correlated with histological grade(r=0.626,0.427, 0.586,P<0.01) and the expression of Ki-67,P53 was positively correlated with LAT1 in esophageal carcinoma tissues(r=0.428, 0.596,P<0.01).Conclusion:Abnormal expression of Ki-67,P53,LAT1 protein was significant related to carcinogenesis of esophageal cancer and the combined detection of the three has important clinical significance.