1.The application of umbilical blood detection to the diagnosis of inflammation in neonates
International Journal of Pediatrics 2013;40(4):375-378
Because of the neonatal immune system is immature,particularly in preterm and low birth weight infants,the neonate is prone to some infections.Neonatal sepsis usually has the slight performance and atypical clinical symptoms,which raise the great interest of searching for some better biomarkers.With the development of testing technology,the research of serum inflammation marker has made remarkable progress at home and abroad in recent years,however,the research of umbilical blood inflammation marker is still in the early stage of exploration.Umbilical blood detection have the advantages of early,noninvasive,safe and convenient compare to the traditional serum detection.This paper mainly discusses the application of umbilical blood detection to early onset neonatal sepsis.
2.Studies on Purification and Characterization of 2,5-DKG Reductase I from ER97
Microbiology 1992;0(06):-
2,5-DKG reductase I was purified from cell-free extracts of a recombinant,ER97 by a procedure involving ammonium sulfate precipitation and successive column chromatography on DEAE-Sepharose CL-6B and Phenyl Sepharose CL-4B with 5 fold purification,27 % recovery and 3418 U/mg specific activity.The molecular weight of the enzyme estimated by SDS-PAGE was 34kD.The isoelectric point was estimated to be 6.0 by PAG-IEF.The optimum pH was 7.0 and the optimum temperature was about 40℃.The enzyme can catalyze the stereospecific NADPH-dependent reduction of 25-DKG to 2-KLG.The michaelis-menten constant(Km) for 2,5-DKG and NADPH were 0.29 mmol/L and 14.7 mmol/L respectively.The enzyme is specific for NADPH and 2,5-DKG,1 mmol/L Cu~(2+) or Zn~(2+) could highly inhibited the enzyme activity.EDTA and ?-Mercaptoethanol have no effect on the enzyme activity.
3. RRLC-TOF/MS in identification of constituents and metabolites of Radix Saposhnikoviae in rat plasma and urine
Academic Journal of Second Military Medical University 2010;31(7):760-763
Objective: To analyze the constituents and metabolites of Radix Sa poshnikoviae (RS) in rat plasma and urine by rapid-resolution liquid chromatography-time of flight mass spectrometry (RRLC-TOF/MS), so as to explore the active ingredients and metabolites of RS in vivo. Methods: The separation was performed on a Angilent Zorbax Extend-C14 (5 μm, 250 mm x 4.6 mm id) column, with a methanol-water mobile phase system used for gradient elution. Time-of-flight mass spectrometer (TOF/MS) was applied for qualitative analysis under positive ion mode. Based on the accurate molecular weight of TOF/MS detection and the compound list of RS established previously, the constituents and metabolites of RS in different matrix in vivo were identified. Results: Six constituents of RS were identified in the plasma, sucrose, prim-O-glucosylcimifugin, cimifugin, nodakenetin, 5-O-methylvisamminol, and 3′-O-i-butyrylhammaudol. Eight constituents were identified in the urine, prim-O-glucosylcimifugin, divaricatacid, cimifugin, 4′-O-glucosyl-5-O- methylvisamminol, (3S)-2,2-dimethyl-3, 5-dihydroxy-8-hydroxymethyl-3, 4-dihydro-2H, 6H-benzo-[1, 2-b: 5, 4-b′] dipyran-6-one, 5-O-methylvisamminol, see-O-β-D-glucosylhammaudol, and wogonin. Two metabolites were identified in the urine, glucuronide of cimifujin and an isomer of it. Conclusion: The present method is reliable and effective for identifying compounds of RS in vivo, and it can provide a reference and evidence for the further pharmacodynamics experiments.
4.Expression of bad gene in human optic nerves from traumatic atrophic eyes
Dongkan LI ; Yue SONG ; Yue ZHANG
Chinese Journal of Ocular Fundus Diseases 2000;0(04):-
Objective To study the expression and its significance of bcl-2 associated death (bad) gene in human optic nerves from traumatic atrophic eyeballs. Methods The optic nerves from 8 normal human donor eyes and 31 traumatic atrophic eyes were studied by immunohistochemistry technique. Results Bad protein was positively expressed in the normal optic nerve myelin sheath and residual myelin portions of optic nerve tissues from traumatic atrophic eyes. The expression of bad protein in the residual portions of myelin sheath was stained significantly stronger than that in normal optic nerves (P0 05). Conclusion Bad might possess the function of promoting the optic nerve atrophy processes in traumatic atrophic eyes.
5.Misdiagnosis of dyspnea in three children.
Chinese Journal of Contemporary Pediatrics 2008;10(3):413-414
6.A case report of hepatic tuberculosis.
Chinese Journal of Hepatology 2014;22(7):548-549
7.Analysis of clinical literature on acupuncture- moxibustion for dyspepsia based on data mining
Journal of Acupuncture and Tuina Science 2019;17(4):264-269
Objective: To summarize the point selection pattern and treatment method in acupuncture-moxibustion for dyspepsia through data mining of the related clinical literatures in recent two decades, and to provide reference for clinical application. Methods: With data mining technology, clinical literatures related to acupuncture-moxibustion for dyspepsia published between January 1997 and July 2018 were collected from major Chinese databases, and the treatment methods, point and meridian frequencies were summarized and analyzed. Results: A total of 106 studies were included. For meridians, the top 5 meridians used were the Stomach Meridian, Conception Vessel, Spleen Meridian, Liver Meridian and Pericardium Meridian. For point selection, the leading 5 points were Zusanli (ST 36), Zhongwan (CV 12), Shangwan (CV 13), Xiawan (CV 10) and Sanyinjiao (SP 6). For major and adjunct points, the 5 most significant major points were Zusanli (ST 36), Zhongwan (CV 12), Neiguan (PC 6), Sanyinjiao (SP 6) and Shangwan (CV 13); the 5 most significant adjunct points were Neiting (ST 44), Qihai (CV 6), Fenglong (ST 40), Yinlingquan (SP 9) and Tianshu (ST 25). For treatment method, the top 3 methods used were moxibustion alone, acupuncture alone and acupuncture combined with medicinal herbs. Conclusion: The main meridian chosen in acupuncture-moxibustion for dyspepsia was the Stomach Meridian, and the points were mainly selected from the Stomach Meridian; treatment method was moxibustion alone, which may provide reference for clinical treatment of this disease.
8.A histologic study on osteophytes in severe osteoarthritis by Masson staining and immunohistochemical staining for collagen type Ⅱ
The Journal of Practical Medicine 2017;33(5):762-766
Objective To establish a histological classification system for osteophytes by Masson staining and immunohistochemical staining for collagen type II. Methods Osteophytes were collected from knee joints in os?teoarthritis patients after joint replacement surgery. To develop an osteophyte classification ,serial tissue sections were identified using histological(hematoxylin and eosin,Masson ' s trichrome,toluidine blue)and immunohisto?chemical staining(collagen typeⅡ). Joint function was assessed by WOMAC score and radiological findings was measured by Kellgren?Lawrence grading. The consistency between the osteophyte classification and WOMAC/Kell?gren?Lawrence grading were evaluated. Results 31 patients and 101 osteophyte samples were included in this study. Based on the histological and immunohistochemical evaluation,osteophytes can be divided into type A (4.9%),type B(4.0%),type C(26.7%)and type D(64.4%). This histological classification system had better consistency with joint function score(χ2 = 0.108,P = 0.947)and Kellgren?Lawrence grading(χ2 = 3.205,P =0.201). Conclusions This trial establishes a histological classification system for osteoarthritis osteophytes ,types A and B indicating early osteophyte and types C and D indicating advanced osteophyte. The system is helpful in clini?cal and basic research on osteoarthritis.
9.Routes for Research and Development of Traditional Chinese Medicine
China Pharmacy 2001;0(11):-
OBJECTIVE:To discuss the routes for research and development of traditional Chinese medicine.METH?ODS:Comparative and multi-phase thinking methods were used to analyze the difference and commonness between tradi?tional Chinese medicine and Western medicine,then the research and development goals and routes of traditional Chinese medicine were established.RESULTS&CONCLUSION:Research and development of tradition Chinese Medicine should be carried forward on the basis of"tradition",that is modern methods combined with traditional theories,or modern methods combined with modern theories.In other words,the same goal can be achieved by different routes.
10.Research on Adverse Drug Reactions Involved Legal Obligations
China Pharmacy 2005;0(17):-
OBJECTIVE:To make sure who is liable for Adverse Drug Reactions(ADRs)and what kind of legal obligation should they bear and how to bear.METHODS:The concerned laws and regulations were studied by literature research method and comparative study method.RESULTS:The legal obligations involved in ADRs were tort liability and administrative liability.The obligation attribution principles were different.The fault principle should be applied to the unpredicted“develop_ mental danger”of drugs.CONCLUSION:The compensatory and relieving acts related to ADRs damages should be formulated in China.