1.Analysis on the Research Hotspots of International Data Biocuration
Li HOU ; Meng WU ; Zhen HOU ; Jiao LI
Journal of Medical Informatics 2017;38(5):74-79
The paper takes the reports and conference proceedings discussed by domain experts during 2015-2016 International Biocu ration Conference and the research literatures about biocuration and data biocuration in PubMedCentral in recent 5 years as the data sources,analyzes,concludes and summarizes the research subject of biocuration through the content analysis method,and focuses on the sorting of working mechanism of biocuration,construction & application,integration & visualization,review and editing & application of biomedical data standards,mining of biomedical texts,in order to provide international experience for the development of biocuration in China.
2.The therapeutic effects of intermittent hypoxia therapy in isolated systolic hypertension patients
Ling-Guang WU ; Jiao-Jie LI ; Guang LI ; Meng HU ;
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(10):-
Objective To study the therapeutic effects of intermittent hypoxia therapy(IHT)in isolated systolic hypertension(ISH)patients with elevated cerebral blood flow velocity(Vp),and to explore the mechanisms involved.Methods Seventy-six ISH patients with increasing Vp and normal pulsatility index(PI)of the middle ce- rebral artery(MCA)were randomly divided into a therapy group and a control group.IHT was administrated in the therapy group,and air in the control group.The Vp and PI of the MCA and blood pressure(BP)were observed be- fore and after treatment.Results Vp and systolic blood pressure(SBP)were significantly reduced after IHT(P<0.01)compared with the therapy group's scores betore treatment,but PI and diastolic blood pressure showed no sig- nificant difference.There was no significant change in BP,Vp or PI in the control group before or after treatment. Conclusion IHT has therapeutic effects on ISH by reducing Vp and moderating SBP.
3.Trans-umbilical NOTES for abdominal adhesion lysis using a flexible endoscope: a case report
Wen LI ; Jiangyun MENG ; Guohui JIAO ; Enfeng ZHAO
Chinese Journal of Digestive Endoscopy 2011;28(5):266-268
Objective To evaluate the feasibility and safety of trans-umbilical NOTES to perform abdominal adhesion lysis using a flexible endoscope.Methods A 42-year-old female was admitted to our hospital with a complain of abdominal pain due to abdominal adhesion after hysterectomy.A gastroscope (GIF-2TQ260M,Olympus)was inserted into the peritoneal cavity through an incision(1.5 cm)of the umbilical opening.Pneumoperitoneum was established by the endoscopic air supply system using CO2 instead of air.Abdominal exploration showed that omentum and bowel were stuck to the scar of the low central peritoneum incision.Separation of the abdominal wall adhesions was performed with an IT knife and a hook knife respectively.After most of the adhesions were separated,bleeding was found from the isolated adhesion wound of the omentum and bowel.Hemorrhaged blood vessel was difficult to be found with the flexible gastroscope.Then a 5 mm Trocar was placed at the left lower abdomen and laparoscopic assistance was adopted to search the bleeding point.However,no bleeding site was found and the hemorrhage was stopped automatically.Residual adhesion lysis was conducted with laparoscopic assist.After the procedure,the umbilical incision was closed with absorbable suture,but lower left abdominal incision was left without suturing.Results The operation time was 40 minutes.The patient suffered from minus pain from the umbilical incision without need of treatment.She had normal diet and got out of bed after reconsious.She was discharged 2 days after the procedure without any complaints.Conclusion Trans-umbilical NOTES using a flexible endoscope for peritoneal adhesion lysis is safe and feasible,but the effectiveness remains to be further confirmed.
4.Advance on anti-tumor theranostics and biosafety of bismuth-based nanomedicine
Ying-jie WANG ; Ping GAO ; Meng SUN ; Lei-jiao LI
Acta Pharmaceutica Sinica 2023;58(4):852-855
Nanomedicine is one of the most promising fields in biomedicine. Inorganic nanomaterials stand out among many nanomaterials due to their excellent physicochemical properties, stable chemical properties and high biocompatibility. As an inorganic nanomaterial, bismuth-based nanomaterials have the advantages of adjustable band gap, low toxicity, easy functionalization, large X-ray attenuation coefficient, high photothermal conversion efficiency and long cycle half-life, so they have good promising application in cancer diagnosis and treatment. This review summarizes the recent research progress of bismuth-based nanomaterials in tumor diagnosis, treatment and biosafety, which provides a theoretical basis for the design and exploitation of a new generation of bismuth-based nanomedicine systems.
5.Chronic hepatic injury modeling in mice induced by D-galactosamine and lipopolysaccharide combination
Yanan ZHAI ; Jingjing WANG ; Meng LI ; Yafei CHI ; Xia MENG ; Boya ENG ; Kun JIAO ; Jing LU
Chinese Journal of Comparative Medicine 2014;(5):62-65
Objective To research the method of Chronic hepatic injury modeling in mice induced by D -galactosamine and lipopolysaccharide combination . Methods Injected D-galactosamine ( 30 mg/mL ) and lipopolysaccharide ( 2μg/mL ) combination by intraperitoneal injection , two days at a time for 8 weeks .Monitored variation of diet and weight; detected serum level of alanine aminotransferase ( ALT ) and aspartate aminotransferase (AST), been put to death in mice and removed the liver tissue .strained hepatic tissue by the HE and Masoon dye to observe Liver tissue structure and cellular morphology and the degree of fibrosis .Results Lipopolysaccharide and D-galactosamine combination resulted in ALT rise , hepatocyte degeneration and necrosis ,collagen fiber hyperplasia obviously . Conclusion D-galactosamine and Lipopolysaccharide combination could induce mice chronic hepatic injury modeling .
6.Intraoperative ultrasound assessment of carotid endarterectomy for the treatment of patients with subtotal or complete occlusion of carotid artery
Yumei LIU ; Beibei LIU ; Xiufeng MENG ; Jie YANG ; Jingzhi LI ; Xiang LI ; Liqun JIAO ; Yang HUA
Chinese Journal of Cerebrovascular Diseases 2014;(8):402-406
Objective To analyze the correlations of vascular structure, hemodynamic changes and surgical recanalization of carotid endarterectomy ( CEA) for the treatment of subtotal or complete occlusion of carotid artery. Methods A total of 107 patients with carotid artery occlusive disease diagnosed at Beijing Xuanwu Hospital,Capital Medical University received CEA therapy from January 2005 to January 2014 and were enrolled retrospectively. According to the findings of introperative ultrasound,they were divided into either a recanalization group (n=86) or a non-recanalization group (n=21). Preoperative and intraoperative carotid artery diameter and blood flow velocity were compared and analyzed with carotid ultrasonography. Intraoperative detected vascular abnormalities, residual vascular stenosis rate, blood flow velocity and pulsatility index of the ipsilateral middle cerebral artery ( MCA) were documented. Results (1) The peak systolic velocity (PSV) (82 ± 32 cm/s and 60 ± 17 cm/s),mean velocity (MV) (50 ± 19 cm/s and 42 ±13cm/s),and pulsatility index (PI) (0. 97 ± 0. 25 and 0. 67 ± 0. 14) on the ipsilateral MCA in patients of carotid artery recanalization before and after procedure were significantly higher than those during the procedure. There were significant differences (all P=0. 000). In patients failed to recanalize,the intraoperative and preoperative PSV,EDV,and MV of MCA were 46 ± 20 cm/s and. 63 ± 21 cm/s,24 ± 13 cm/s and 34 ± 12 cm/s, and 32 ± 16 cm/s and 44 ± 15 cm/s,respectively. They were reduced more significantly during the procedure than those after procedure. There were significant differences ( all P=0. 000 ) . But there was no significant difference in PI (0. 70 ± 0. 18 and 0. 67 ± 0. 15) compared with that before procedure (P=0. 317). (2) The diseased vascular diameter of the recanalization group was significantly widened (0. 6 ± 0. 4 mm vs. 3. 4 ± 0. 9 mm,P=0. 000) compared with before procedure. The overall recanalization rate was 80. 4% (86/107). Intraoperative ultrasound revealed that 13 patients had mild abnormal vascular structures among the recanalized patients. The non-recanalized patients had significantly abnormal vascular structure. Conclusion Intraoperative carotid ultrasound in combination with transcranial Doppler (TCD) for monitoring cerebral blood flow may effectively identify the carotid structure and the degree of cerebral hemodynamic improvement,and timely guide the secondary repair.
7.Traditional Chinese medicine pairs (III)--effect of extract of Ginseng Radix et Rhizoma and Puerariae Lobatae Radix on intestinal absorption in rats.
Yi-hang CHEN ; Meng-xuan LI ; Zhao-qing MENG ; Jiao-jiao YANG ; Wen-zhe HUANG ; Zhen-zhong WANG ; Yue-sheng WANG ; Wei XIAO
China Journal of Chinese Materia Medica 2015;40(15):3094-3099
This study focused on the intestinal absorption of traditional Chinese medicines (TCM) to reveal the scientific connotation of the compatibility of TCM pairs. The single pass intestinal perfusion (SPIP) was used in rats to compare the absorption of single extracts from Puerariae Lobatae Radix, single extracts from Ginseng Radix et Rhizoma, combined extracts from Puerariae Lobatae Radix and Ginseng Radix et Rhizoma and Puerariae Lobatae Radix and Ginseng Radix et Rhizoma mixture in rats. The content of puerarin, ginsenoside Rg1, ginsenoside Re and ginsenoside Rb1 in liquid were tested by HPLC. The speed constant (Ka) and apparent permeability coefficients (Papp) were calculated and compared. Specifically, the order of puerarin Ka and Papp values from high to low was Ginseng Radix et Rhizoma and Puerariae Lobatae Radix mixture > single extracts from Puerariae Lobatae Radix > combined extracts from Ginseng Radix et Rhizoma and Puerariae Lobatae Radix; the order of ginsenosides Ka and Papp values from high to low was Ginseng Radix et Rhizoma and Puerariae Lobatae Radix mixture > single extracts from Ginseng Radix et Rhizoma > combined extracts from Ginseng Radix et Rhizoma and Puerariae Lobatae Radix. The combined administration of Ginseng Radix et Rhizoma and Puerariae Lobatae Radix may improve the absorption in the intestinal tract.
Animals
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Ginsenosides
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pharmacokinetics
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Intestinal Absorption
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Isoflavones
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pharmacokinetics
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Male
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Medicine, Chinese Traditional
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Panax
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chemistry
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Plant Extracts
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pharmacokinetics
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Pueraria
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chemistry
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Rats
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Rats, Sprague-Dawley
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Rhizome
8.Clinical evaluation of periodontal-orthodontic treatment in patients with aggressive periodontitis and malocclusion
Xiao SHEN ; Jie SHI ; Li XU ; Jian JIAO ; Ruifang LU ; Huanxin MENG
Journal of Peking University(Health Sciences) 2017;49(1):60-66
Objective:To evaluate the clinical effect and safety of periodontal-orthodontic treatment in patients with aggressive periodontitis (AgP) and malocclusion.Methods:A retrospective analysis was conducted in 25 AgP patients,who had received periodontal-orthodontic treatment in Peking University School and Hospital of Stomatology.Clinical indexes,including probing depth (PD),bleeding index (BI) and percentage of sites with bleeding on probing (BOP%) were evaluated at three time points:Baseline (T0);active periodontal treatment finished and before orthodontic treatment (T1);and after orthodontic treatment (T2).Also changes of ratio of the residual alveolar bone height (RBH) and the occurrence of root resorption were evaluated by periapical radiographs.Results:(1) Compared with T0,all the clinical parameters including PD,BI,BOP% and percentage of sites with PD > 3 mm were significantly improved (P <0.001).(2) Significant difference was observed in the average RBH between T0 (68.37% ± 15.60% and T2 (70.27% ± 14.23%).RBH in upper incisors [(58.79% ± 16.71% at T0,65.54% (55.74%,78.13%) at T2],upper canines [77.62% (66.06%,87.17%) at T0,79.57% (69.75%,86.52%) at T2] and upper molars [74.30% (61.69%,84.45%) at T0,76.76% (68.12%,85.09%) at T2] showed significant increase (P < 0.05).(3) After orthodontic treatment,varying degrees of root resorption occurred in (23.94% ± 13.45%) of teeth per capita,among which the lower and upper incisors showed the highest incidence (68.48% and 65.31% in homogeneous teeth,respectively).Conclusion:After active periodontal treatment,orthodontic treatment in AgP patients had not aggravated inflammation and alveolar bone resorption;root resorption occurred in two-thirds of incisors approximately.
9.Cost-effectiveness analysis of the focal injection treatment of the severe abdominal parenchymal organs trauma
Faqin Lü ; Jie TANG ; Yukun LUO ; Ziyu JIAO ; Yongmei BA ; Xiangfei MENG ; Tanshi LI
Chinese Journal of Ultrasonography 2011;20(1):34-37
Objective To analyse the cost-effectiveness analysis of the focal injection treatment under the guidance of contrast enhanced ultrasound(CEUS) for the severe abdominal parenchymal organs trauma.Methods One hundred and twelve patients with severe abdominal parenchymal organs trauma,including 42 hepatic injuries,52 splenic injuries and 33 renal injuries,were rolled in this study. The cost-effectiveness of this group was compared with that of surgery group. Results Treatment duration of single organ trauma under the guidance of CEUS was 20 - 30 minutes. During the first 72 hours after the focal injection, blood pressure and heart rate were improved ( P <0.05). Free intraperitoneal liquid did not increase on immediate US image of post-therapy and then it disappeared gradually. Heart rate returned to normal level after injection treatment ( P <0. 001 ). Lengths of stay in hospital was 3 - 11 (5.4 ± 2.4)days, which was not different with 3 - 9(5.1± 1.9) of surgery group( P >0.05). Treatment cost was 0.32 - 0.43 (0.36 ±0. 14) ten thousand RMB, which was obviously less than 3. 1 - 4. 2 (3.6 ± 10.8) ten thousand RMB of surgery group ( P < 0.01 ). Conclusions The efficacy of the focal injection treatment of the severe abdominal parenchymal organs trauma under the guidance of CEUS was consistent with that of the operative treatment, but its cost was less. Especially it benefited for reserving organs and less pain.
10.Impact of smoking and platelet distribution width on clopidogrel resistance in patients with coronary ar-tery disease LI
Yanhong LIU ; Zhanquan JIAO ; Tong LI ; Yingwu LIU ; Wenjin PENG ; Meng NING
The Journal of Practical Medicine 2017;33(14):2336-2340
Objective To explore the influence of smoking on clopidogrel resistance in patients with coro-nary artery disease. Methods A total of 216 patients with coronary artery disease who accept selective percutane-ous coronary intervention in our hospital from May 2015 to December 2015 were selected as study subjects;their average age was 63 years old ,146 were male and 70 were female. All the patients were divided into clopidogrel resistance group (CR group) and normal clopidogrel response group (NCR group) according to the results of platelet aggregation test. History of smoking ,alcohol drinking and diabetes mellitus ,baseline medication uses , level of platelet counts,platelet distribution width,mean platelet volume,HbA1c,and results of echocardiogram and coronary angiography were compared between the two groups. Results The rate of smoking was significantly higher in CR group than in NCR group (P < 0.05). The changed value of PDW before and after treatment with clopidogrel was smaller in CR group than in NCR group ,the difference was statistically significant (P < 0.05). Conclusions Smoking may be a protective factor for clopidogrel resistance. The changed value of PDW before and after treatment with clopidogrel can reflect the level of clopidogrel resistance.