1.Medicinal plant hairy roots generating and their applications.
Meng ZHANG ; Wei GAO ; Xiu-Juan WANG
China Journal of Chinese Materia Medica 2014;39(11):1956-1960
As a kind of the plant tissue cultures, hairy root culture is characterized by rapid growth without exogenous hormones source and high yield of secondary metabolites, which attracted the attention of scholars in resent years. This work systematically summarized the research of medicinal plant hairy roots, including the mechanism, current situation of medicinal plant hairy roots, and their applications.
Cell Culture Techniques
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Plant Roots
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chemistry
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genetics
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growth & development
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metabolism
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Plants, Medicinal
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chemistry
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genetics
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growth & development
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metabolism
2.The relationship between serum adiponectin level and cardiac structure and function in hemodialysis uremia patients
Xin LI ; Juan MENG ; Zhongxin LI ; Wei JIANG
Chinese Journal of Practical Internal Medicine 2001;0(09):-
Objective To determine the relationship between serum adiponectin level and cardiac structure and function in hemodialysis(HD)patients.Methods 46 MHD uremia patients and 20 healthy volunteers were included in this study.The serum adiponectin,total protein,albumin,triglyceride,cholesterol,were determined,and echocardiographic were perfomed.The association between ADPN and cardiac structure and function were analyzed respectively.Results Serum ADPN level was higher in HD patients than that in controls[(16.89?4.87)mg/L vs(7.24?2.56)mg/L,P
3.Establishment the cut-off value of hTSH in dried venous blood spots of neonatal screening for CH in Guilin
Junyao DENG ; Juan MENG ; Wei HU ; Yufeng WU
International Journal of Laboratory Medicine 2015;(15):2193-2196
Objective To investigate the distribution of human thyroid stimulation hormone(hTSH) in dried venous blood spots of neonatal screening for congenital hypothyroidism in Guilin ,and establish the hTSH cut‐off value for neonatal screening .Methods We selected 101 817 cases of neonatals with the local household registration from January 2011 to December 2013 ,and collected their venous blood to be made into dried venous blood spots on filter paper ,then the hTSH levels in dried blood spots were deter‐mined for congenital hypothyroidism ,According to screening results ,using the percentile method to calculate the hTSH P50 ,P99 of all the normal neonatals and neonatals that born in different quarters .Results Among 101 817 neonatals who were screened ,101 746 cases of normal neonatals ,71 cases of patients(including 47 cases of patients with CH ,24 cases of patients with high hTSH hy‐perlipidemia) ,the hTSH levels of normal neonatals showing a skewed distribution ,P50 ,P99 were 2 .45 μU/mL ,9 .86 μU/mL .the hTSH levels of the neonatal who were born in different quarters was changed with the change in the quarter ,P50 ,P99 were 2 .15μU/mL ,9 .20 μU/mL in The Spring ;P50 ,P99 were 1 .97 μU/mL ,8 .38 μU/mL in the summer ;P50 ,P99 were 2 .67 μU/mL ,10 .43μU/mL in the autumn ;P50 ,P99 were 2 .90μU/mL ,11 .15μU/mL in the winter .Through the analysis ,although the hTSH cut‐off of capillary blood spots that was used in the local center could be applied to dried venous blood spots ,but not ideal cut‐off value .Even‐tually ,the hTSH P99 9 .20μU /mL in the spring was identified as cut‐off value of dried venous blood spots for routine screening la‐boratory ,which had a sensitivity of 100 .00% ,a specificity of 36 .80% ,the diagnosis rate of 38 .96% ,and no missed phenomena .For the better service ,the hTSH value in the range of 9 .20-20 .00 μU/mL was defined as the boundary region ,and it was the danger region when the hTSH value was higher than 20 .00 μU/mL .Conclusion It is necessary to establish a reasonable hTSH cut‐off value to provide objective evidence for the use of dried venous blood spots of neonatal screening for congenital hypothyroidism ,ac‐cording to the boundary region and the danger region ,the recall chosen a different way ,the development of neonatal screening can be effectively promoted .
4.Echocardiography evaluation of pulmonary hypertension in hemodialysis patients
Wei JIANG ; Juan MENG ; Yafeng WU ; Zhongxin LI ; Qianmei SUN
Chinese Journal of Medical Imaging Technology 2010;26(2):285-287
Objective To investigate the incidence and the relation between pulmonary hypertension (PH) and cardiac output in hemodialysis (HD) patients with PH. Methods The incidence of PH was estimated with Doppler echocardiography in 78 patients receiving HD. Left ventricular ejection fraction, cardiac volume, cardiac output and cardiac index were compared between patients with or without PH. Results PH was found in 20 patients (25.64%), among them15 had mild PH, 4 had moderate PH and 1 had severe PH. There was no statistical difference of ejection fraction, cardiac volume, cardiac output and cardiac index between the two groups. PH was not related to cardiac output. Conclusion HD can lead to PH, but cardiac output can not result in PH. Further investigations about the effect of elevated cardiac output induced by internal arteriovenous fistula and other factors on PH are needed.
5.Clinical Significance of Measurment of D-Dimer and High Sensitive C-Reactive Protein in Serum for Acute Cerebral Infarction
Bing CHEN ; Xianghong MENG ; Xiaofei GENG ; Wei WANG ; Juan CHEN ; Dongning WEI
Chinese Journal of Rehabilitation Theory and Practice 2007;13(5):415-416
Objective To explore the relationship of D-Dimer and high sensitive C-reactive protein in serum in acute cerebral infarction. Methods 64 patients with acute cerebral infarction were measured with the D-Dimer and Hs-CRP and compared with that of 50 healthy subjects as the controls. Their scores of National Institutes of Health Stroke Scale (NIHSS) were recorded and the correlation with the D-Dimer and Hs-CRP level was analyzed. Results Compared with those in controls, the levels of D-Dimer and Hs-CRP in patients with acute cerebral infarction were significantly higher (P<0.05), and those in patients with large infarction area were significantly higher than those in patients with small infarction area (P<0.01). The levels of D-Dimer and Hs-CRP uncorrelated with the scores of NIHSS.Conclusion The D-Dimer and Hs-CRP level is helpful to assess the acute cerebral infarction.
6.Clinical analysis of hemodialysis patients with pulmonary arterial hypertension
Juan MENG ; Qianmei SUN ; Wei JIANG ; Zhongxin LI ; Jing HUANG ; Yanchun LI
Chinese Journal of Nephrology 2009;25(2):93-96
Objective To investigate the prevalence ,clinical features and prognosis of pulmonary arterial hypertension (PAH) in maintenance bemodialysis (MHD) patients for early diagnosis and treatment. Methods Complete clinical data of 184 MHD patients in Beijing Chaoyang Hospital between January 2000 and December 2007 were retrospectively analyzed. PAH diagnosis depended on echocardiography. Results Sixty-five (35.3%) patients were found having PAH, including 31 females and 34 males, with mean (56.84±14.58) years old. The mean bemadialysis duration was (29.69±21.61) months. Among 65 patients with PAH, arteriovenous fistula was used in 61 patients and central venous catheter in 4 patients. The systolic pulmonary arterial pressure (SPAP) was (44.56±8.25) mm Hg (1 mm Hg=0.133 kPa) in PAH group, which was significantly higher than (30.28±3.92) mm Hg in non-PAH group. There were significant differences of interval dialysis weight gain (IDWG), Hb, Hct, right atrial diameter, pulmonary artery diameter and right ventricular diameter between PAH group and non-PAH group (all P<0.05). Multivariate analysis revealed anemia, IDWG and right atrial diameter were independent factors (P< 0.05). There were no significant differences of age, dialysis duration, serum calcium, phosphorus, alkaline phosphatase, parathyroid hormone (PTH) between two groups. Conclusions PAH is a common complication of MHD patients. Patients with mild PAH had few clinical manifestations and good therapeutic responses, but severe PAH may be associated with poor prognos is. Doppler echocardiography should be performed periodically to detect PAH in MHD patients.
7.Diagnosis and treatment rule of traditional Chinese medicine for syndrome factors of chronic congestive heart failure: a study based on Shannon entropy method.
Chan CHEN ; Yongmei MENG ; Peng ZHANG ; Juan WANG ; Huihui ZHAO ; Shuzhen GUO ; Wei WANG
Journal of Integrative Medicine 2010;8(11):1080-4
The primary aim of this research is to systematically sort out and analyze available clinical documents for chronic congestive heart failure in traditional Chinese medicine (TCM) and integrated traditional Chinese and Western medicine, and to explore the diagnosis and treatment rule of TCM syndrome factors with data mining method.
8.Determination of plasma concentration of quercetin, kaempferid and isorhamnetin in Hippophae rhamnoides extract by HPLC-MS/MS and pharmacokinetics in rats.
Yu LIU ; Juan YANG ; Yang-ling TUO ; Ting WEI ; Yong ZENG ; Ping WANG ; Xian-li MENG
China Journal of Chinese Materia Medica 2015;40(19):3859-3865
To establish an HPLC-MS/MS method for the analysis of quercetin, kaempferid and isorhamnetin in rats plasma and study its pharmamacokinetics after an intragastrical administration of Hippophae rhamnoides extracts. Five healthy male Sprague-Dawley (SD) rats were given single doses of H. rhamnoides extracts (quercetin 26.35 mg x kg(-1), kaempferid 4.040 mg x kg(-1), isorhamnetin 31.37 mg x kg(-1)), and then their orbital sinus blood samples were collected at different time points. The drug plasma concentration of the three flavonoids was determined by HPLC-MS/MS method. After that, the main pharmacokinetics parameters were calculated by using Kinetica 5. 0. 11 software. The methodological test showed that the linear concentration ranges of quercetin, kaempferid and isorhamnetin were 7.500-600.0 μg x L(-1) (R2 = 0.998 5), 1.000-80.00 μg x L(-1) (R2 = 0.998 5 ) and 10.00-800.0 μg x L(-1) (R2 = 0.998 0), respectively. The inner and inter-days precisions were both less than 14.0%. The plasma samples showed a good stability and consistency with the requirement of biological sample analysis after the samples were frozen once and placed at - 20 degrees C for 15 d and room temperature for 6 h and the treated analytes were placed at -20 degrees C for 24 h. For quercetin, the pharmacokinetic parameter t(½β), AUC(0-∞), MRT(0.∞), C.(max) and T(max) were (113.3 ± 19.37) min, (12 542.14 ± 3 504.05) μg x h x L(-1), (119.6 ± 13.29) h, (164.6 ± 27.33) μg x L(-1) and (5.199 ± 0.840 3) h, respectively. For kaempferid, the pharmacokinetic parameters t(½β), AUC(0-t), MRT(0-∞), C(max) and T(max) were (79.85 ± 17.15) min, (934.51 ± 94.59) μg x h x L(-1), (81.50 ± 13.75) h, (80.15 ± 14.24) μg x L(-1) and (3.827 ± 0.902 7) h, respectively. For isorhamnetin, the pharmacokinetic parameters t1,2,, AUC(0-t), MRT(0-∞), C(max) and T(max) were (118.3 ± 20.73) min, (26 067.77 ± 4 124.60) μg x h x L(-1), (129.0 ± 16.30) h, (269.6 ± 29.32) μg x L(-1) and (6.513 ± 1.450) h, respectively. The HPLC-MS/MS analysis method established in this study was proved to be sensitive and accurate and could be applied in the pharmacokinetic study of quercetin, kaempferid and isorhamnetin in rat plasma.
Animals
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Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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analysis
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pharmacokinetics
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Hippophae
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chemistry
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Kaempferols
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blood
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pharmacokinetics
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Male
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Quercetin
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analogs & derivatives
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blood
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pharmacokinetics
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Rats
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Rats, Sprague-Dawley
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Tandem Mass Spectrometry
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methods
9.Mechanism of Alisma plantago-aquatica Linn. improving chronic glomerulonephritis based on network pharmacology and experimental verification
Zhi-miao QIU ; Bin LU ; Meng-juan WEI ; Li-li JI
Acta Pharmaceutica Sinica 2023;58(6):1430-1440
This study aims to explore the improvement and the mechanism of the
10.Dynamic Changes of Chlorogenic Acid and Luteoloside from Donghai County of Honeysuckle at Different Blossoming Stages
Yongxiang WANG ; Yun WU ; Jin MENG ; Juan SHEN ; Yu'an BI ; Zhengzhong WANG ; Wei XIAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(9):1975-1979
This study was aimed to acquire the dynamic changes of chlorogenic acid and luteoloside of honeysuckle at different collecting periods in order to decide the best harvesting time of honeysuckle in Donghai County, Jiangsu Province. The content determination method used in the detection of chlorogenic acid and luteoloside of honeysuckle was from the 2010 edition of the Chinese Pharmacopoeia. The skills of HPLC fingerprint characteristic features, and the yield of pressed flowers were combined in the evaluation of honeysuckle at the three-green period, two-white pe-riod, great-white period, silver-flower period and the golden-flower period. The results showed that the content of honeysuckle at different blossoming stages had obvious changes in content of chlorogenic acid and luteoloside, as well as the pressed flower quality and yield of the flower. It was concluded that the optimal harvest time of honey-suckle was for the two-white period and the great-white period, which was consistent with the real origin.