Реферат
Objective? To? explore? the? clinical? significance? of? early? oral? intervention? measures? in? the?prognosis?of?premature?infants.? Methods? 151?preterm?infants?admitted?to?neonatal?intensive?care?unit?(NICU)?of?Liaocheng?People's?Hospital?from?January?2015?to?January?2017?were?enrolled.?Premature?infants?were?divided?into?intervention?group?and?control?group?according?to?random?number?table?method?and?with?the?consent?of?legal?guardian.?Both?groups?received?routine?treatment?of?preterm?infants?after?stable?vital?signs.?The?intervention?group?received?the?oral?massage?method?adopted?by?none-nutritive?sucking,?stimulating?swallowing?function?and?SandraFucile?on?the?basis?of?routine?treatment,?once?a?day?for?14?consecutive?days.?Both?groups?were?followed?up?for?6?months.?The?oral?feeding?ability?of?premature?infants?was?evaluated?by?the?proficiency?(PRO),?rate?of?transfer?(RT),?feeding?process?and??non-nutritive?suction?(NNS).?At?40?weeks?of?postmenstrual?age?(PMA),?neonatal?behavioral?neurological?(NBNA)?was?used?to?assess?neonatal?brain?development;?Infanib?was?used?for?early?motor?development?evaluation?at?3?months?and??6?months?after?birth.? Results? Finally,?151?premature?infants?were?enrolled,?including?78?in?the?intervention?group?and?73?in?the?control?group.?The?time?to?complete?oral?feeding?of?the?intervention?group?was?significantly?shorter?than?that?of?the?control?group?(days:?18.1±3.7?vs.?23.4±5.8,?P?<?0.05).?Compared?with?the?control?group,?at?the?time?of?complete?oral?feeding,?the?PMA?of?the?intervention?group?was?significantly?decreased?(weeks:?33.4±0.9?vs.?35.9±1.9,?P <?0.05),?the?feeding?efficiency?was?significantly?increased?(mL/min:?10.6±5.1?vs.?8.1±4.7,?P?<?0.05),?and?PRO?was?significantly?increased?[(95±8)%?vs.?(72±28)%,?P <?0.05],?and?the?body?weight?was?significantly?decreased?(g:?1?836.0±193.0?vs.?2?000.8±204.5,?P?<?0.05).?The?NNS?scores?of?the?intervention?group?and?the?control?group?were?increased?gradually?with?time?(F?values?were?86.21?and?75.23,?respectively,?both?P?<?0.01),?and?the?NNS?scores?of?the?intervention?group?at??10?days?and?14?days?were?significantly?higher?than?those?of?the?control?group?(52.89±6.26?vs.?46.74±6.24,?73.90±7.01? vs.?63.53±6.80,?both?P?<?0.01).?The?NBNA?scores?of?the?two?groups?were?lower,?but?there?was?no?significant?difference?between?the?intervention?group?and?the?control?group?(32.7±3.6?vs.?32.0±4.1,?P?>?0.05).?Infanib?evaluation?at?3?months?of?age?showed?that?the?proportion?of?normal?children?in?the?intervention?group?was?significantly?higher?than?that?in?the?control?group?[67.95%?(53/78)?vs.?49.31%?(36/73),?P?<?0.05],?and?at?6?months?of?age,?the?proportion?of?normal?children?in?the?intervention?group?was?significantly?higher?than?that?in?the?control?group?[84.62%?(66/78)?vs.?58.90%?(43/73),??P <?0.01].? Conclusion? Early?oral?exercise?intervention?can?shorten?the?transition?time?from?tube?feeding?to?full?oral?feeding?in?NICU?premature?infants?and?improve?the?performance?of?infants?during?feeding.
Реферат
Aim To investigate the axonal regeneration effect of salidroside in MCAO rats and its potential mechanism.Methods Thirty-six healthy adult male Sprague-Dawley rats were randomly divided into three groups: sham, MCAO, MCAO+Sal groups.The rats were subjected to focal cerebral ischemia/reperfusion with suture-occluded method.Neurological deficit testing was performed with Zea Longa scale.The protein expression of p-Akt(Ser473), Akt, p-GSK-3β(Ser9), GSK-3β, p-CRMP-2(Thr514) and CRMP-2 in side cerebral ischemic tissues were determined using Western blot analysis.NF200 immunofluorescence staining was used to evaluate axonal regeneration.Results Compared with MCAO group,salidroside significantly improved the neurological deficit,up-regulated the protein expression of NF200,p-Akt and p-GSK-3β,and inhibited the protein expression of p-CRMP-2.Conclusions Salidroside improves neurological function recovery after focal cerebral/ischemic injury in rats,which may be associated with the up-regulation of phosphorylated Akt and GSK-3β and inhibition of phosphorylated CRMP-2,thereby promoting axonal regeneration.
Реферат
Objective To evaluate the effects of sub-acute alcoholism on cardiac structure and function, and investigate the mechanisms of aldehyde dehydrogenases-2 (ALDH2)alleviating the damage of heart caused by acute myocardial infarction.Methods The wild mice with ALDH2 (+/+) (WT group) and mice with knockout type ALDH2 (-/-) genotypes (KO group) were raised and then divided into four groups according to the presence or absence of sub-acute alcoholism: WT group (n=10), KO group (n=16), WT+alcoholism group(WT+E,n=10) and KO+alcoholism group(KO+E,n=10).The mice of WT+E group and KO+E group were fed with high-dose of ethanol(2 g/kg per day for 8 days), while the mice of WT group and KO group were treated with equal amount of saline instead.Acute myocardial infarction models were established in all mice after ethanol administration,and blood ethanol concentration, cardiac function, myocardial infarct size, the activity of ALDH2, and the key molecules of PI3K/Akt signal pathway and caspase-3 mRNA were detected one week after modeling.Statistical analysis was performed using SPSS 17.0.Differences in levels of detected biomarkers between groups were assessed using Chi-squared or One way ANOVA, and P<0.05 was considered to be statistically significant.Results (1) The mortality rates of WT group, KO group, WT+E group and KO+E group were 20.0%, 30.0%, 31.3% and 37.5%, respectively.(2)Compared with WT group and KO group, the blood ethanol concentration was higher and the damage of liver was more severe in WT+E group and KO+E group(P<0.05).(3)The fraction shortening of short axis of left ventricle(FS) and left ventricular ejection fraction were higher in WT group and WT+E group compared with KO group and KO+E group(P<0.05).(4) The area of myocardial infarction was largest in KO+E group, followed by KO group, WT+E group, and WT group (all P<0.05).(5) The activity of ALDH2 in WT group was higher than that in other groups, and the ALDH2 activity in KO+E group was lower than that in KO group (P<0.05).(6) There was no significant difference in expressions of PI3K among four groups.The level of p-Akt was highest in WT group, followed by WT+E group, KO group, and KO+E group (all P<0.05).The levels of caspase-3 mRNA was highest in KO+E group, followed by KO group, WT+E group, and WT group (all P<0.05).Conclusions Myocardial damage caused by acute myocardial infarction can be aggravated by sub-acute alcoholism, while ALDH2 protection can effectively alleviate the damage effects of sub-acute alcoholism on myocardial infarction.The mechanism of protective effects of ALDH2 on acute myocardial infarction may be related to attenuation of cardiocytes apoptosis mediated by PI3K/Akt signal pathway.
Реферат
Objective To analyze the discourse right construction of China’s medical aid to Africa,so as to provide evidenc?es for improving the effect and sustainable development of China’s medical aid to Africa. Methods The documents of the dis?course right that China constructed in the medical aid to Africa were selected at different periods as discourse samples. The achievement and deficiency were analyzed from four aspects,namely confident,charismatic,influential,and dominant. Re?sults China’s medical team made much in the discourse right construction in their aid to Africa,but some China’s medical team members were still too cautious and too low?key. China’s medical team gained the trust of the people of Africa,but the lan?guage communication difficulties still hampered in China’s medical aid to Africa. Chinese medical team were widely praised by the African society,but in the west,some African media,even China’s media still neglected to report China’s doctors. China’s international discourse right were greatly improved,but western countries still dominated the public opinion. Conclusion Chi?na should refer to the actual situation of medical aid to Africa to strengthen the construction of discourse right.
Реферат
BACKGROUND:The umbilical cord blood is rich in hematopoietic stem/progenitor cel s that have strong proliferation and differentiation ability as wel as ability to form colonies, and exert important roles in stimulating bone marrow function, improving blood cel viability and quantity, promoting immune cel maturation, and maintaining immune balance. OBJECTIVE:To evaluate the clinical effects of autologous umbilical cord blood mononuclear cel transplantation on the immunologic function and prognosis for premature infants. METHODS:Sixty-two preterm infants who entered into NICU immediately after birth, weighing ≤ 1 500 g, were divided into treatment group and control group according to parent’s wil ingness. In the treatment group, the umbilical cord blood was extracted from the umbilical vein and re-infused into the preterm infants after density gradient centrifugation within 4 hours. The cel ular immunity levels, humoral immunity levels and clinical parameters were monitored before and after treatment. RESULTS AND CONCLUSION:After 1 week of treatment, the CD4, CD4/CD8 levels were significantly increased compared with the control group (P=0.01, 0.03), but CD8 level had no changes. At 1 week after treatment, IgM levels were both increased in the two groups, especial y in the control group (P=0.00);IgA levels had no changes;IgG levels were decreased, especial y in the control group (P=0.02). The incidence of severe infection during hospitalization was 13%in the treatment group, which was lower than the control group (16%), but there was no difference between the two groups. The proportion of infants undergoing mechanical ventilation and average length of stay had significant differences between the two groups (P<0.05). After 12 months, the incidence of recurrent respiratory tract infections was zero in the treatment group and one case in the control group, and there was a significant difference between the two groups. These findings indicate that autologous umbilical cord blood mononuclear cel transplantation can improve the immunologic function, slower the reduction of IgG levels, reduce the usage of breathing machine, shorten the length of stay, and reduce the incidence of recurrent respiratory tract infections in preterm infants.
Реферат
Objective To construct the prokaryotic expression vector of human autophagy-related LC3B gene,obtain the GST-LC3B recombinant plasmid , purify the GST-LC3B fusion protein and identify its activity in vitro.Methods Human LC3B coding region was amplified from the human mammary gland cDNA by PCR and inserted into the prokaryotic expres -sion vector pGEX-KG.The recombinant plasmid pGEX-KG-LC3B was transformed into E.coli Rossate.The expressed product was purified by GST-Sepharose 4B beads and identified by SDS-PAGE and Western blot analysis .The function of the purified protein GST-LC3B was detected by GST pull-down assay.Results About 400 bp of the LC3B coding region was successfully amplified from the mammary gland library by PCR and inserted into pGEX -KG.The result of double diges-tion and sequencing showed that the GST-LC3B recombinant plasmid was successfully obtained .The GST-LC3B fusion pro-tein of about 40 000 (Mr) was successfully purified and identified by SDS-PAGE and Western blotting analysis.GST pull-down assay showed that GST-LC3B could interact with Atg4B, which identified its known function .Conclusion The pro-karyotic expression vector of GST-LC3B is constructed successfully , which will facilitate further research on the function of LC3B in autophagy.
Реферат
Objective To construct the eukaryotic expression vector of cyclin-dependent kinase ( CDK) 7 labeled with Myc tag, obtain the expressed product , and identify its interaction with FLAG-P53 at the protein level .Methods Human CDK7 coding gene region amplified from the mammary cDNA library by PCR was inserted into the pXJ -40 vector.The recombinant plasmid Myc-CDK7 transfected into human 293T cell lines was investigated and examined by SDS-PAGE and Western blotting.In addition,assay was applied to determine the interaction between Myc-CDK7 and FLAG-p53.Results The coding region of CDK7 was successfully amplified by PCR and cloned into pXJ-40 vector, which was identified by double enzyme digestion and gene sequencing .Myc-CDK7 was successfully expressed in human 293T cell lines according to SDS-PAGE and Western blotting assay indicated that Myc-CDK7 could interact with P53 protein, which verified its known function .Conclusion The eukaryotic expression vector Myc-CDK7 is successfully obtained , which will contribute to further research on CDK 7-mediated cell cycle regulation .
Реферат
Objective To investigate the clinical features,treatment and the causes of death in severe infectious disease complicated with capillary leak syndrome(CLS)in neonates.Methods The clinical data,laboratory finding,treatmand clinical outcome of 11 neonates who had severe infectious disease complicated with CLS in our NICU from Jan 2009 to Jul 2010 were collected and analysed retrospectively.Results Among the 11neonates,five had pneumonia and the other six had sepsis.All the 11 cases appeared progressive edema on skin and mucosa,dyspnoea,infective shock,oliguria and hypoalbuminemia(10～20 g/L).We treated the 11cases with hydroxyethyl starch(10～15 ml/kg,every 8 to 12 h)at early stage on the basis of infection control,anti-shock treatment,mechanical ventilation,symptomatic treatment and a stable internal environment.At last,6 cases were rescued,in whom 4 cases were well-developed,had normal intelligence and athletic ability,the other two cases had hydrocephalus or muscle tone high of both lower extremities.Five cases died.Conelusion CLS is a severe complication of neonatal severe infection,and had high mortality.Treating with hydroxvethvl starch at an early stage can increase the survival rate.
Реферат
Objective To explore the short and long-term effect of cardiopulmonary resuscitation (CPR) training for agricultural residence registration population with the language education and practice education,in order to establish a more effective method of first-aid training for agriculture population.Methods 989 agricultural residence registration people were divided into group A (721 people)and group B (268 people) randomly.Group A received CPR training with language education and group B adopted practice education.On the time before and after training immediatelythe 3rd and 6th month after training,we checked the training results and analyzed the data with statistical methods.Results The short- term effect of two methods was satisfying (accuracy more then 90％ ) and without statistical significance.The effect of group B was better than group A in the 3rd and 6th month after training.Two groups showed higher forgetting rate and some accuracy were less than 50％.Conclusions Agriculture population is in urgent need of first-aid.It may be a more effective method of first-aid training for agriculture population to transform gradually from language education to practice education.At the same time,we may use 4 hours as CPR practice education training time and 6 months as re-training period.
Реферат
Objective To determine the effects of a 12-week aerobic exercise program on brachial-ankle pulse wave velocity ( baPWV) in sedentary and under-exercised healthy older adults. Methods A total of 35 sedentary and unfit but healthy older adults with mean age of 74.7 years were randomly assigned to a progressively increased intensity aerobic exercise group ( n = 17) or a control group ( n = 18). The exercise group performed aerobic exercise 3 times each week for 12 weeks. The control group didn't participate in the exercise program. Heart rate,blood pressure and baPWV were evaluated at admission to the aerobic exercise program and at the end of the 12 weeks in both groups. Results The mean baPWV in the aerobic exercise group decreased from 15.88 m/s to 14.62 m/s after exercise, a significant reduction. Blood pressure in the exercise group showed a decrease which was not significant. No significant improvement was identified in the control group. Conclusions Only 12 weeks of aerobic exercise with progressively increased intensity can improve arterial elasticity in sedentary and unfit older adults.
Реферат
Objective To evaluate the safety and efficacy of hepatectomy in combination with portal azygous disconnection for primary hepatocellular carcinoma (HCC) complicated with severe portal hypertension (PHT). Methods Clinical data of 30 cases of HCC complicated with PHT treated in our hospital from April 2005 to April 2008 were retrospectively analyzed. All 30 cases were randomly divided into the single operation group (group Ⅰ ) and combined group (group Ⅱ ). Results After operation, there were no significant statistical differences in rates of complications such as hepatic encephalopathy, ascites, stress ulcer, etc. and recovery of liver function between the 2 groups. The WBC and PLT counts in the blood samples of group Ⅱ were higher than those in group Ⅰ after operation. The postoperative 1- and 2-year hemorrhagic rates were lower in group Ⅱ than in group Ⅰ .Conclusion Hepatectomy in combination with portal azygous disconnection is safe and feasible for treatment of HCC complicated with PHT.
Реферат
Objective To study the effectiveness of microwave ablation in treating HCC.Methods A total of 98 nodules in 56 cases of HCC were treated via appropriate puncture approach ac-cording to the volume, amount and site of tumor nodules. Results Only 1 patient failed to finish treatment since he could not suffer the pain. The other 55 patients finished without a hitch. Clinical and imaging findings were analyzed for change of physiology. Conclusion The microwave ablation is effective for the treatment of HCC. Such therapy can be important supplement of direct surgical man-agement. Its effect mainly depends on accurate puncture approach and enough diametric range. Mean-while, reasonable puncturing method should be selected.
Реферат
Objective To understand the the current situation of the slogans in the schistosomiasis health education from the linguistic aspect.Methods Sixty-two slogans in the schistosomiasis health education were collected,then the rationality and validity of them were analyzed from two aspects :the language form and the semantic content.Results Most of the slogans had the appropriate language form and the rational semantic content,they could propagandize the policy and educate the people very well,but there were still some slogans had the inappropriate language form or have the irrational semantic content and so on.Conclusion In order to make the slogans in the schistosomiasis health education more effective,we should attach importance to the language form and the semantic content of them.
Реферат
Objective To dynamic monitor the level of D--dimer after transfusion treatment of postpartum hemorrhage and the possibility of thrombosis. Methods To retrospective analyze and compare of the level of D-dimer of 10 cases with postpartum hemorrhage, while the one in 20 eases of normal confinement in our hospital of year 2008. Results The level of D-dimer in the ease of postpartum hemorrhage was significantly higher than the one in the ease of normal confinement, and this difference indicated important significance(P<0.01).Dynamic monitoring 10 eases of emergency treatment of patients with plasma D-dimer levels with the effective condition improved after treatment and gradually decreased. Conclusion D-dimer is the main mark of secondary fibrinolysis, and the results reflect the function of D-dimer in vascular endothelial injury and blood coagulation, anti-coagulation and fibrinolytie. Furthermore, it has important significance in the understanding of the body's blood coagulation status and the prediction of mierothrombus formation, bleeding tendency, or the occurrence and development of disseminated intravaseular coagulation(DIC), development
Реферат
OBJECTIVE: To prepare Polylactic-co-glycolic acid)(PLGA) microspheres loaded with Chinese herbal extract cucurbitacin B.METHODS: Cucurbitacin B loaded by PLGA microspheres were prepared by modified emulsification-solvent evaporation method.Central composite design-response surface method was applied to optimize the formulation with PVA concentration and ratio of drug to polymer as independent variables,and with yield of microspheres(Y1),drug loading amount(Y2),encapsulation efficiency(Y3),mean particle diameter(Y4),and the cumulative percentage of the drug release in 24 hr(Y5) as indexes to conduct multiple linear regression and second-order polynomial equation fitting.In vitro release test was performed by modified immediate release method.RESULTS: The results showed that all response variables were greatly fitted by a second-order polynomial equation.The optimal formulation was proved to be as follows: PVA concentration was 0.014 and ratio of drug to polymer was 0.066 5.The microspheres prepared in the optimal formulation were spherical and had smooth surface.Y1,Y2,Y3,Y4,and Y5 were 79.9%,7.83%,80.5%,56.18 ?m and 6.98%,respectively.The cumulative release from microspheres within 35 days reached 86.73%.CONCLUSION: Cucurbitacin B-PLGA microspheres are characterized by prolonged action and sustained-release.Furthermore,the established model has satisfactory predictability.
Реферат
Objective To compare the effects of aero bi c exercise training of two different intensities on circadian blood pressure. Methods Twenty-eight sedentary patients with hyperte nsion were randomly allocated into 2 groups, and were treated with aerobic exerc ise training at 20% or 60% of the maximal intensity for 8 weeks, respectively. Not only were the relevant parameters of exercise capacity measured by use of m aximal bicycle ergometer tests, but also was the circadian blood pressure monito red pre-and post-therapy. Results Each paramet er of blood pressure decreased in both groups with similar circadian pattern. Conclusion The aerobic exercise training at 20% an d 60% of the maximal intensity have similar effects on circadian blood pressure.
Реферат
Aim To construct and express the fused gene of anti-glioma single chain Fv(39ScFv)/ human tumor necrosis factor α (TNF-α ). Methods The mature peptide cDNA of TNF-α was fused to 3′ -terminus of ScFv gene. The 39ScFv-TNFα fusion gene was cloned into expression vector pET20b(＋ ) and induced to express in E.coli. Results The fusion protein expressed in E.coli account for 20％ of the total bacterial protein. It displayed a single band of Mr 44 000 by reducing SDS-PAGE and Western blot, and retained both of its anti-glioma immunoreactivity and biological activity of TNF. Conclusion The fusion gene was constructed and expressed successfully in E.coli. The fusion protein possessed bifunctional activities, it may prove useful in targeting immunotherapy against glioma.
Реферат
Objective:To observe the anti-glioma effects of lymphocyte activated by SEC in vivo and probe into therapy effects of SEC combing with operation,radiotherapy and chemotherapy.Methods:Experiment animals were SCID mice.With establishing animal model of glioma xenografted and immunity chimeric model of HuPBL-SCID,we observed the growth curve,survive time.With having operation,radiotherapy and chemotherapy,30 patients suffering from glioma were divided into control group,handle group 1 and 2,and then results were analyzed with MRI.Results:Growth curve shows:A,C and B group produced different suppress against glioma and its suppress rate were 58.5%,46.2% and 36.3%.The first death occurred at the 17th day in control group mice and all mice deaded at the 40th day.Contrasting to this,the first death occurred at the 40th day and 50% mice still were alive in group A until the day that experiment has just finished(60 day).Clinical material showed:The rate of effect(CR and PR) in control group was 40%,while the rate of effects was 50% in handle group 1 and 62.5% in handle group 2.Conclusion:SEC has extramaly potent anti-tumor activity against glioma.SEC combined with operation,radiatherapy and chemotherapy can raise treatment effect in patients with glioma.