1.Effects of Goal-directed Volume Therapy on the Intracranial Pressure and the Balance of Cerebral Oxygen Consumption and Supply in Selective Neurosurgery
Shenglan TIAN ; You ZHOU ; Dan FENG
Acta Medicinae Universitatis Scientiae et Technologiae Huazhong 2015;(1):106-109
Objective To investigate the effects of goal‐directed volume therapy (GDVT )on the intracranial pressure(ICP) and the balance of cerebral oxygen consumption and supply in selective neurosurgery. Methods Twenty‐four patients sched‐uled for intracranial tumor resection were randomly divided into 2 groups:conventional fluid management group (group C ,n=12) and GDVT group(group G ,n=12). Patients in group C received introperative fluid transfusion according to classical fluid management strategies while those in group G received GDT according to stroke volume variation (SVV) ,guided by Flotrac‐Vigileo system.Mean arterial pressure(MAP) ,heart rate(HR) ,cardiac index(CI) ,ICP ,SVV and jugular bulb oxygen saturation (SjvO2 )were recorded before the anesthesia induction(T1 ) ,at the moment of intubation(T2 ) ,at the moment of opening the hard meninges(T3),1hafteropeningthehardmeninges(T4),andattheendofthesurgery(T5).Thecerebraloxygenextractionra‐tio(CERO2 )was calculated. The duration of surgery ,crystalloid volume ,colloid volume ,blood transfusion volume ,urinary output and bleeding volume were recorded as well.Results The colloid transfusion volume ,the total fluid transfusion volume and uri‐nary output were significantly increased in group G when compared with those in group C (P<0.05).MAP ,CI ,and SjvO2 were much higher and CERO2 were much lower at T4 and T5 in group G than in group C(P<0.05). There was no significant differ‐ence in the ICP at each time point between groups G and C (P>0.05).Conclusion Goal‐directed fluid therapy optimizes the cardiac preload without increasing the ICP in selective neurosurgery ,and it also improves the balance of cerebral oxygen con‐sumption and supply.
2.Reflection on medicare work during military training for college students
Liansheng YOU ; Feng TANG ; Qisan TIAN
Chinese Journal of Medical Education Research 2013;(10):1071-1074
Medicare work runs throughout the whole process of military training and directly affects the quality of military training. Good preparation,medical service and preventive health care work were done to reduce the injury rate during military training from recognizing significances ,char-acteristics,rules and methods of medicare. Additional health-related military programs,targeted tech-nical and tactical training and optimization and integration of teachers are effective ways to expand the military direction,improve and enrich the content o military training.
4.Reformation of Fundamental Medicine Education as Development of EMB
Chun-Xiang LI ; Mao-You TIAN ;
Chinese Journal of Medical Education Research 2006;0(07):-
The conception of evidence-based medicine (EMB) has a strong influence on the medical world since it built up.This concept has been widely used in all sorts of clinic and basic medical research,however,it is little reported to be practised in our fundamental medical education.As for it,this article will briefly analyze the importance of introducing the idea into fundamental medical education,and for one thing,suggest some more reform measures for medical teaching staff.
5.Current Research Progress of Apelin-13
Wan FU ; Shaowen TIAN ; Yong YOU
Tianjin Medical Journal 2014;(11):1138-1140,1141
Apelin is a polypeptide consisting of 77 amino acids. Apelin receptors are found to be the angiotensin-like G protein coupled receptor (APJ). Apelin/APJ system is widely distributed in the peripheral and central nervous system. Apelin-13 is one of the subtypes of Apelin, which has strong biological activity. This study reviewed the new research prog?ress of Apelin-13 on physiological and pathological processes involved in the cardiovascular system, respiratory system, ner?vous system, digestive system and endocrine system.
6.Effects of early enteral nutrition on short-term quality of life in patients with esophageal carcinoma after operation
Ji HE ; Zhenbing YOU ; Wenze TIAN ; Xin ZHENG
Chinese Journal of General Practitioners 2014;13(9):780-782
A total of 62 patients with radical operation of esophageal carcinoma were divided into all-in-one nursing intervention group (research,n =32) and routine nursing group (control,n =30).With regards to postoperative flatus time,removal of chest tube drainage time,postoperative hospital stay and hospital costs,the research group was lower than the control group (P < 0.05).After 2 weeks,from the postoperative quality of life questionnaire with the European Organization for Research and Treatment of Cancer,the scores of overall health of enteral nutrition group were higher than those of parenteral nutrition group while the symptom scores of fatigue,nausea & vomiting,insomnia,decreased appetite,constipation and economic difficulties were less than parenteral nutrition group (P < 0.05).Early postoperative enteral nutrition can improve the quality of life in patients with esophageal cancer.
7.A study of the expression of ANGPT1,ANGPT2 and VEGF in mouse model of acute myeloid Leukemia
Hong YANG ; Fengying TIAN ; Zeping ZHOU ; Liang SHAO ; You ZHANG
Chongqing Medicine 2015;(5):586-589
Objective To construct mouse model of acute myeloid leukemia and detect the expression of ANGPT 1 ,ANGPT2 and VEGF gene on the cells its as well as the clinical significance .Methods The HL‐60 cells were transfected to NOD/SCID mouse through abdominal injection to construct mouse model of acute myeloid leukemia .Then identify mouse model by histopathology and Flow Cytometry .The expression of ANGPT2 ,ANGPT1 and VEGF mRNA in the tumor tissues of mouse model was detected by real‐time fluorescence quantitative PCR .The expression of ANGPT2 will be analyzed on the survival time of mouse model by Spearman′s correlation method .Results Mouse model has been successfully identified by histopathology and Flow Cytometry .The expression of ANGPT2 and VEGF in mouse mode was significantly detected ,which was that of higher than normal group (P<0 .05) .The expression of ANGPT1 was lower than that of ANGPT2 and VEGF ,there was no significant difference between AN‐GPT1 and normal groups (P>0 .05) .The higher expression of ANGPT2 in mouse model had a short survival time in mouse with acute myeloid leukemia .Conclusion This study showed that ANGPT2 mRNA was over‐expressed in acute myeloid leukemia .The increasing expression of ANGPT2 mRNA may lead to poor prognosis in mouse with acute myeloid leukemia .
8.Galactosylated alginate-chitosan oligomer microcapsule:How to encapsulate hepatocytes?
Meng TIAN ; Bo HAN ; Chao YOU ; Changxiu WAN
Chinese Journal of Tissue Engineering Research 2013;(47):8215-8221
BACKGROUND:A novel galactosylated alginate-chitosan oligomer microcapsule has been prepared successful y. There is no report on hepatocytes encapsulated into the microcapsule prepared with chitosan oligomer and alginate sodium.
OBJECTIVE:To study the structure and properties of the previous novel galactosylated alginate-chitosan oligomer microcapsule, and then explore the morphology and function expression of the hepatocytes encapsulated.
METHODS:The membrane structure and thickness of the microcapsule (containing 50%or 30%galactosylated alginate) were observed using a laser confocal microscopy. Mechanical property was determined by mechanical rupture rate. Permeability was evaluated by release profile of fluoresceine isothiocyanate-labeled human serum albumin and immunoglobulin G. The morphology of hepatocytes in the microcapsule was observed using an inverted phase contrast microscopy. Function expression of the hepatocytes included albumin secretion and urea synthesis.
RESULTS AND CONCLUSION:The microcapsule had an asymmetry structure, with dense inner and loosened outer surfaces. With the increase of the galactosylated alginate, the membrane became loose, which indicated the negative charge on the alginate molecular chains was weakened after introduction of galactose, and thus electrostatic complex was affected. Mechanical property was correlated with both membrane structure and thickness. With the increase of the galactosylated alginate, the membrane structure became loose and the thickness was decreased, resulting in poor mechanical properties. The permeability was dependent mainly on the pore size of the skin layer of the membrane other than the loose sublayer. The prepared microcapsule can selectively pass through the human serum albumin and cut off immunoglobulin G, indicating skin pore size between human serum albumin and immunoglobulin G. The hepatocytes can form sphere assemble in the galactosylated alginate-chitosan oligomer microcapsule and exhibit improved albumin secretion and urea synthesis compared to the control in the alginate-chitosan oligomer microcapsule.
9.Discussion on acupuncture for cerebral apoplexy from the view of rehabilitation.
Zhong-Nan MAO ; Tian-You HE ; Cheng-Lin LUO
Chinese Acupuncture & Moxibustion 2014;34(3):293-296
Abundant experiences have already been accumulated in treatment of stroke with acupuncture. Development of rehabilitation theory also brings unprecedented opportunity and challenge to acupuncture. Combined with the modern rehabilitation theory and practice, it is very helpful to deepen the understanding on treatment of acupuncture for cerebral apoplexy and enhance the therapeutic effect in clinic by studying the mechanism of acupuncture treatment, opportunity of intervention, selection of acupoints, needling manipulations and quantity of stimulations etc. Through analysis on the necessity and the way of combination of acupuncture and modern rehabilitation, it is concluded that rehabilitation evaluation, rehabilitation phases and obstacle analysis should be taken as references by acupuncturists to reinforce the therapeutic effect and creditability of acupuncture treatment on cerebral apoplexy.
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10.Development of a new HPLC technique for analyzing monosaccharide composition and its application in the quality control of Silybum marianum polysaccharide.
Lingmin TIAN ; Xuemei QIU ; Zijing PAN ; You Lü ; Xingbin YANG
Acta Pharmaceutica Sinica 2010;45(4):498-504
A new HPLC-UV technique for the separation and analysis of 10 monosaccharides achieved within 13.5 min using 1-phenyl-3-methyl-5-pyrazolone (PMP) as the labelling molecule of the reductive monosaccharides has been established by combining common high performance liquid chromatography-UV and C18 column. The established technique was applied to the quantification of the monosaccharide components in extract of Silybum marianum. The results showed that the tested 10 monosaccharides as PMP derivatives were baseline separated under the HPLC conditions proposed. It was confirmed that Silybum marianum extract was composed of mannose, rhamnose, glucuronic acid, galacturonic acid, glucose, xylose, galactose and arabinose with the molar ratio of 0.66:0.84:0.58:1.0:1.6:0.69:2.7:4.8. Quantitative recoveries of the compositional monosaccharides separated from the extract were in the range of 92.4%-104.0%, and the RSD values fell within 0.68%-3.81%. The results demonstrated that the proposed HPLC method was simple, rapid, convenient, and precise, and it was applicable to the analysis of the compositional monosaccharides of Silybum marianum extract.