1.Primary study on HPLC fingerprint of cultured Cordyceps militaris
Rongmin YU ; Bin YE ; Liyan SONG
Chinese Traditional and Herbal Drugs 1994;0(09):-
Objective To establish the HPLC fingerprint of cultured Cordyceps militaris. MethodsHPLC Method was used for the determination of C. militaris on Agilent ZOBAX SB-Aq C18 column (250 mm?4.0 mm, 5 ?m), and measuring with methanol 5%—60% in 30 min as elution detective wavelength at 260 nm, injection sample of 1.0 ?L and flow rate of 1.0 mL/min. The systematic optimized design of the chromatographic conditions, such as supersonic extraction, mobile phase, and detective wavelength as well was carried out. Results Fingerprint consisted of 11 common peaks and the result of methodology determination fitted to the related standards. The evaluation of cultured C. militaris by systematically comparing chromatograms with a professional analytical software recommended by National Institute for the Control of Pharmaceutical and Biological Products has been established. Conclusion The method is accurate, simple, and useful for the quality control of cultured C. militaris.
2.Analysis of modern literature of maternal-fetal blood group incompatibility
Hui XUE ; Aimin YU ; Zhihua SONG ; Bin YU
International Journal of Traditional Chinese Medicine 2011;33(8):708-709
Objective By selecting the prescriptions of treating blood group incompatibility in modern literature, and exploring their regularity, to establish the overall thought of traditional Chinese medicine in treatment.Methods 90 articles on maternal-fetal blood group incompatibility were found.Statistical methods were adopted to summarize high frequently used medicines and formula. Results High frequently used medicines were Virgate Wormwood Herb, Baical Skullcap Root, Rhubarb, Cape Jasmine Fruit, White peony Alba, Chinese Angelica,Largehead Atractylodes Rhizome,Motherwort Herb,and Milkvetch Root, which were mentioned for 238 times in the literatures, occupying 72.79% of the total frequency. Conclusion Based on this result,heat-clearing and dampness-removing, activating blood circulation to eliminate blood stasis was setup as the principle for treating this disease.
3.The value of clinical application of leukocyte classification alarm system (Q-Flag) for Sysmex XT-1800i blood cell analyzer
Bing HAN ; Yang GAO ; Kang LI ; Qisheng SONG ; Bin YU
International Journal of Laboratory Medicine 2015;(14):2013-2014
Objective To study the value of clinical application of leukocyte classification alarm system (Q‐Flag ) for Sysmex XT‐1800i blood cell analyzer .Methods 394 blood samples with alarm system (Q‐Flag) and 190 ones without abnormal alarm infor‐mation detected by the Sysmex XT‐1800i blood cell analyzer were performed to observe the quantity and morphology of blood cells by manual differentiation ,and the results were compared between them .Results The alarm system of Sysmex XT‐1800i blood cell analyzer in detecting cell morphologic abnormalities was 100 .0% for sensitivity ,62 .3% for specificity ,70 .8% for positive predic‐tive value and 100 .0% for negative predictive value .Based on thegold standardof manual differentiation ,no abnormal cells were observed in those blood samples without Q‐Flag alarm information and the coincidence rate was 100% .The coincidence rate of leu‐kocyte classification was from 0 .0% to 75 .0% for blood cell analyzer when the alarm system (Q‐Flag) was between 100U and 200U ,and that was from 66 .7% to 95 .6% when the alarm system (Q‐Flag) was between 200U and 300U .Conclusion The alarm system sensitivity of leukocyte classification alarm system (Q‐Flag) is high for Sysmex XT‐1800i blood cell analyzer ,and it is nec‐essary to manually differentiate the samples with abnormal Q‐Flag in order to provide accurate and reliable clinical diagnostic infor‐mation .
4.Application of neural electrophysiological monitoring in facial nerve microvascular decompression
Bin WANG ; Hongmei SONG ; Mingxin YU ; Yunqian LI
Journal of Jilin University(Medicine Edition) 2015;(6):1264-1269
Objective To expore the application of intraoperative neural electrophysiological monitoring in microvascular decompression (MVD)of idiopathic facial spasm (HFS), and to clarify the effect of MVD in increasing the operative efficacy of MVD and decreasing the postoperative complications.Methods From December 2010 to December 2014,163 patients with HFS received MVD were selected;from December 2010 to December 2010,73 patients with facial spasm without electrophysiological monitoring in the operation were used as control group;from January 2013 to December 2014,90 patients with facial spasm with BAEP/LSR/FN MEP monitoring in the operation were used as monitoring group.The postoperative efficiency of MVD and the occurrence of hearing loss,dizziness, facial paralysis and other complications after operation were compared between two groups. Results The immediate efficiency in monitoring group was 52.55% (47 cases), minor facial paralysis 1.11%(1 case),hearing loss and dizziness 5.56% (5 cases).The postoperative follow-up time was 6 to 12 months,an average of 9.6 months; the facial paralysis, hearing loss, and dizziness were significantly improved and the operation efficiency was 65.56% (59 cases).The Immediate efficiency in control group was 30.14% (22 cases), minor facial paralysis 13.69% (10 cases),hearing loss and dizziness 23.29% (17 cases);the postoperative follow-up time was 6 to 12 months,an average of 9.6 months;the facial paralysis,hearing loss,and dizziness were significantly improved, and the operation efficiency was 64.38% (47 cases ). The immediate surgery had statistically significant difference between two groups (P <0.05),and monitoring group was better than control group;the long-term curative effect had no significant difference between two groups (P >0.05).The incidence of facial paralysis, hearing loss and the incidence of complications such as dizziness had statistically significant differences between two groups (P <0.05),and monitoring group was better than control group.Conclusion LSR monitoring can improve the short-term curative efficiency of facial nerve MVD,but the significance for the long-term curative efficiency is not obvious; BAEP, LSR and FN MEP monitoring have great significance in identification of responsibility vessel,judgement of decompression effect and surface and auditory nerves protection.
5.Advances on clinical research of histone demethylase LSD1 inhibitors
Yu-ting SHI ; Xin-yu YANG ; Bin YU ; Yi-hui SONG
Acta Pharmaceutica Sinica 2022;57(10):2949-2959
Lysine-specific demethylase 1 (LSD1) plays vital roles in cell stemness, differentiation, cell motility, metabolic control and epithelial-mesenchymal transition, which is closely associated with tumorigenesis processes including cell proliferation, invasive, metastasis and poor prognosis. Besides, LSD1 also contributes to the occurrence of other diseases such as neurodegenerative diseases and viral infections. Since 2013, the irreversible inhibitors including tranylcypromine, ORY-1001, ORY-2001, GSK-2879552, IMG-7289, INCB059872, TAK-418, LH-1802 and reversible inhibitors including CC-90011 and SP-2577 have been approved for clinical assessment. This review comprehensively summarizes the clinical research of LSD1 drug candidates and briefly discusses the prospects, opportunities and challenges of LSD1-targeted drug discovery, aiming to provide a landscape for the related drug development.
6.Clinical anatomic type observation of the first metatarsal dorsal artery
Yisheng ZHANG ; Bin MENG ; Fengliang SONG ; Boshu CHU ; Yingjian CUI ; Heng MENG ; Jiangfa XU ; Xiaohuan LU ; Yuxian SUN ; Bin YU
Journal of Regional Anatomy and Operative Surgery 2016;25(10):715-719
Objective To study the anatomic data of the first metatarsal dorsal artery and to provide anatomical basis for clinical tissue transplantation based on the first metatarsal dorsal artery.Methods The 16 adult cadaver specimens with 32 feet were dissected and meas-ured by vernier caliper.Then the anatomic data of the first metatarsal dorsal artery were analyzed.Results Through the examinations of 32 feet sample,the first metatarsal dorsal artery were classified into 5 types.Type Ⅰ:the first metatarsal dorsal artery runs at the surface of the first dorsal interosseous muscle (13 sides,40.6%).Type Ⅱ:the first metatarsal dorsal artery runs in the interior of the first dorsal interosse-ous muscle (11sides,34.4%).Type Ⅲ:the first metatarsal dorsal artery runs underneath the first dorsal interosseous muscle (6 sides, 18.8%).Type Ⅳ:the first metatarsal dorsal artery is slender (1 side,3.1%).TypeⅤ:the first metatarsal dorsal artery is absent (1 side, 3.1%).Distance relationship was measured between the first metatarsal bone and the first metatarsal dorsal artery:the vertical distance be-tween the origin of the posterior branch of the first metatarsal dorsal artery and base of the first metatarsal bone was (2.4 ±0.3)mm,the ver-tical distance between the origin of the posterior branch of the first metatarsal dorsal artery and head of the first metatarsal bone was (10.1 ±1.0)mm;the vertical distance between the origin of the anterior branch of the first metatarsal dorsal artery and the first metatarso-phalangeal joint was (7.6 ±2.7)mm.Conclusion The first metatarsal dorsal artery has clinical reference significance for the hands and feet’s trauma and skin flap transplantation such as thumb reconstruction.
7.CT and MRI findings of littoral cell angioma of spleen
Yi MAO ; Xueming LI ; Yingkun GUO ; Jianqun YU ; Bin SONG ; Fabao GAO
Chinese Journal of Radiology 2013;(1):60-63
Objective To determine the value of CT and MRI in the evaluation of littoral cell angioma(LCA) of spleen.Methods Two experienced radiologists retrospectively analyzed the clinical data,CT and MRI findings of 12 patients with pathology proven LCA of spleen.The patients underwent noncontrast enhanced CT scan,then enhanced CT (n =10) and MRI (n =3) were performed.Results The majority of patients (8/12) showed splenomegaly,with no obvious signs and symptoms of hypersplenism.The majority of patients (10/12) had the uncountable hypodense lesions,a few (2/12) had only a single lesion.None of the lesions contained any calcification or envelopement.On CT,the majority (7/10) of the lesions demonstrated well circumscribed border,with some lesions (3/10) demonstrating a less distinct border.The enhanced scan for low-density nodules demonstrated slow progressive enhancement.On MRI,all the LAC had well circumscribed borders,and demonstrated T1-hypointense and T2-hyperintense signalswith punctual hypointense in the T2 WI,and progressive enhancement on the post contrast images.DWI showed an increased diffusion of the lesions compared to the normal appearing splenic tissue.Conclusion CT and MR imaging of littoral cell angioma of spleen has certain imaging characteristics,those particular findings may potentially aid in the diagnosis.
8.Influence of gender on association between serum uric acid and branchial-ankle pulse wave velocity measurement
Bin HU ; Hui ZHAO ; Song LENG ; Ying LIU ; Shujun YU ; Guanghui SUN ; Huiwen LIANG
Chinese Journal of Health Management 2013;(2):103-107
Objective To determine the influence of gender on the association between serum uric acid and branchial-ankle pulse wave velocity (baPWV).Methods Cross-sectional data from 1418 adults who underwent routine laboratory tests and baPWV measurements were analyzed in a gender-specific manner.BaPWV≥ 1400 cm/s was defined as abnormality.The individuals were assigned to four groups (Q1,Q2,Q3 and Q4) according to the gender-specific quartiles of serum uric acid.The relationship between serum uric acid and the baPWV values was assessed by Spearman's correlation coefficients.In female,the relationship of serum uric acid quartiles with baPWV was evaluated by logistic regression analysis.Results In male and female,diastolic blood pressure,fasting blood glucose,triglyceride and body mass index were increased with serum uric acid level,in contrast to high-density lipoprotein cholesterol.The Spearman's correlation coefficient for the relationship between serum uric acid and baPWV was 0.18 in female and-0.05 in male (P =0.16).In female,univariate logistic regression analysis showed that in comparison with group Q1,odds ratio (OR) value of baPWV abnormality of group Q4 was 2.45 (95%confidence interval (CI) 1.48 to 4.06).In multivariate logistic regression,after adjusting for creatine and estimated glomerular filtration rate,OR value of baPWV abnormality of group Q4 was 2.45 (95% CI 1.48 to 4.06) when compared with group Q1.However,after adjustment for age and other risk factors of cardiovascular diseases,there were no significant differents in ORs among serum uric acid quartile groups.Conclusions The association between serum uric acid level and baPWV in female may depend on age and metabolic syndrome components.
9.Endothelial nitric oxide synthase gene transfection enhances anti-proliferative effect of EPCs on injured artery
Bin CUI ; Xiaohan DING ; Gang ZHAO ; Mingbao SONG ; Shiyong YU ; Jianfei CHEN ; Lan HUANG
Chinese Journal of Interventional Cardiology 2014;(10):637-641
Objective To study the effects of endothelial nitric oxide synthase (eNOS) gene transfection on endothelial progenitor cells (EPCs) transplantation in the process of injured vascular endothelium repair. Methods EPCs were cultured and expanded in vitro. EPCs were transduced with pseudotyped retroviral vectors expressing eNOS gene (pMCV-eNOS-EPCs) or green fluorescent protein gene (pMCV-GFP-EPCs). EPCs with expressing eNOS, GFP or saline were injected respectively into rat injured artery model by tail vein injection after balloon injury and again 24 hours. 14 days after transplantation. eNOS expression in injured artery was detected by RT-PCR, western blot and immunohistochemical methods. The morphology of arterial intima and media was studied by optical microscopy and image analysis system. Results Compared with GFP-EPCs group and control group, the mRNA and protein of eNOS were obviously high expressed in eNOS-EPCs group. EPCs transplantation reduce lumen stenosis and inhibit neointimalhyperplasia (eNOS-EPCs group vs.control group, 0.58±0.05 vs. 1.56±0.21, P < 0.01;GFP-EPCs group vs. control group, 0.84±0.09 vs.1.56±0.21, P < 0.05). eNOS gene transfection could further enhance this anti-proliferative effects (eNOS-EPCs group vs. GFP-EPCsgroup,0.58±0.05 vs. 0.84±0.09, P < 0.05). Furthermore, eNOS modified EPCs could improve the endothelial function of injured vascular endothelium. Conclusions eNOS gene transfection could increase the anti-proliferative effect of EPCs transplantation on injured artery and obviously ameliorate endothelial function.
10.Expression pattern of microRNA-379 during the embryo heart development and differentiation of P19 cells
Lihua WANG ; Guixian SONG ; Jingai ZHU ; Zhangbin YU ; Ming LIU ; Bin CHEN ; Xiaoyu ZHOU
Chinese Journal of Applied Clinical Pediatrics 2014;29(24):1886-1888
Objective To observe the expression changes in microRNA (miR)-379 in the developmental process of the mouse heart and during the differentiation of P19 cells into cardiac myocytes,and to explore the possible relationship between miR-379 and the differentiation of cardiacmyocytes.Methods Heart tissues were collected from fetal mice in pregnant ones at their gestational age (8.5,11.5,14.5 and 18.5 days) respectively.Heart tissue sections of the fatal mice were obtained to observe the heart development process.Then total RNA was isolated from heart tissues by using the TRIzol method.Complementary DNA was synthesized from 1 μg total RNA by using a Reverse Transcriptase Kit.Finally,real-time PCR (RT-PCR) was employed to detect the expression of miR-379.At the same time,P19 cells were cultured with 10 mL/L Dimethyl sulfoxide in suspension for 4 days to form cell aggregation,and these aggregations were transferred into 6-wells plate for culturing by adherence.Beating cells were detected with microscopy on the 10th day after induction.Afterwards,total RNA was extracted from cultured P19 cells at different time points.Reverse transcription was executed to get DNA.At last,RT-PCR was used to explore the expression of miR-379 on 0,4,6,10 days after aggregation.Results The expression level of miR-379 was down-regulated gradually in the developing heart (at gestational age of 8.5,11.5,14.5,16.5 days,respectively),and there were significant differences on the different days (F =21.13,P < 0.05).On the other hand,myocardial markers of troponin T represented an increasing trend during the process of P19 cells induction,which demonstrated that P19 cells were successfully induced into cardiomyocyte-like cells.Meanwhile,miR-379 showed a low expression on day 0 of P19 cells aggregation.On day 4,miR-379 demonstrated a higher level.Afterwards,miR-379 proved to be down-regulated gradually.Conclusions miR-379 plays a role in the process of the heart development,but the specific mechanisms need further research.