1.The effect and significance of minimally invasive removal of intracranial hematoma on the blood-brain barrier in patients with intracerebral hemorrhage
Chinese Journal of Postgraduates of Medicine 2013;36(17):14-16
Objective To investigate the effect and significance of minimally invasive removal of intracranial hematoma on the blood-brain barrier in patients with intracerebral hemorrhage (ICH).Methods Clinical data of 20 patients with ICH were randomly selected and received minimally invasive surgery (operative group) and 20 patients with ICH received expectant treatment therapy (expectant treatment group) were analyzed retrospectively,and 20 healthy people were randomly collected for control group.The blood-brain barrier (BBB) and serum myelin basic protein (MBP) concentration were analyzed.Results The BBB index of the iperative group was 0.0075 ± 0.0007,the expectant treatment group was 0.0083 ± 0.0006 and the control group was 0.0068 ± 0.0004.The BBB index in the operative group was significantly lower than that in the expectant treatment group (P < 0.05),and the BBB index in these two groups was significantly higher than that in the control group (P< 0.01).The serum MBP concentration in the operative group was (3.29 ± 1.55) μg/L,the expectant treatment group was (6.55 ± 3.78) μg/L,and the control group was (1.12 ± 0.48) μ g/L.The serum MBP concentration in the operative group was significantly lower than that in the expectant treatment group (P < 0.05),and these two groups were significantly higher than the control group (P < 0.01).Conclusions The permeability of BBB in patients with ICH are increased,the BBB index and the serum MBP concentration in patients with ICH are increased,minimally invasive surgery can reduce the lesion of cytotoxicity to BBB and cerebral edema.
2.Study on design and application cases in teaching health economics
Chinese Journal of Medical Education Research 2015;(3):260-262
The interdisciplinary nature of health economics brings certain difficulty to the teaching of this course, so it is very important to rationally design and use case teaching. According to the characteristics of the course, this paper put forward design ideas from the guiding ideology, selec-tion, categories and forms. This paper argued that teacher should play a leading role and create a good learning environment and grasp four parts of the implementation.
3.Progress in the Studies of Fungal Chitin Synthases
Microbiology 1992;0(02):-
Chitin is one of the most important component in fungal cell wall.Biosynthesis of chitin is a complex processes and needs several chitin synthase isoenzymes.The knowledge of structure,function and regulation of chitin synthases is mainly derived from the study of Saccharomyces cerevisiae.In contrast with the 3 chitin synthases in S.cerevisiae,7 were found in most filamentous fungi.In this review the classification and function of chitin synthases are summerized,and progress in the studies on chitin synthases of filamentous fungi which are of theoretical or medical or agricultural importance,including Aspergillus nidulans,Aspergillus fumigatus and Ustilago maydis are emphasized.Recent ad-vance of research on chitin synthase as antifungal target is also discussed.
4.Effect of paeoniflorin on level of glucocorticoid receptor of peripheral blood monocytes in rats of collagen-induced arthritis.
China Journal of Chinese Materia Medica 2014;39(5):907-910
The study is to explore the effect of paeoniflorin on the level of glucocorticoid receptor, including glucocorticoid receptor-alpha (GCRalpha) and glucocorticoid receptor-beta (GCRbeta), of peripheral blood mononuclear cells (PBMCs) in rats of collagen-induced arthritis (CIA). CIA is induced in Wistar rats by an intradermal injection of bovine type II collagen emulsified with complete adjuvant. From the 14th day after primary immunization, the CIA rats were intragastrically administered paeoniflorin 25, 50 and 100 mg x kg(-1) or triptolde 20 microg x kg(-1) or paeoniflorin 50 mg x kg(-1) + RU486 15 mg x kg(-1), once a day, for 28 consecutive days. After administration, apart from PF + RU486 group all experimental rats were took blood by removalling eyeball, then separated PBMCs. The level of GCRalpha, GCRbeta in PBMCs were examined by ELISA, and the mRNA expression of GCRalpha, GCRbeta was detected by RT-PCR. All rats were sacrificed and took the joint with no immunization. The expression of IL-1beta, NF-kappaB p65, TNF-alpha, PGE2 of synovial tissue was detected by immunohistochemistry. Paeoniflorin was able to inhibit the expression of IL-1beta, NF-kappaB p65, TNF-alpha, PGE2 of synovial tissue in CIA rats. While RU486, glucocorticoid receptor's blocker, could weaken the fuction of paeoniflorin. Meanwhile, paeoniflorin obviously induced the expression of GCRalpha and GCRalpha mRNA, while obviously inhibited the expression of GCRbeta and GCRbeta mRNA. These results indicat paeoniflorine suppresses inflammatory mediator production may be relating with it regulating GCR in PBMCs of CIA rats.
Animals
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Arthritis
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chemically induced
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drug therapy
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genetics
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metabolism
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Cattle
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Collagen
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adverse effects
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Disease Models, Animal
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Drugs, Chinese Herbal
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administration & dosage
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Glucosides
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administration & dosage
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Humans
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Leukocytes, Mononuclear
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drug effects
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metabolism
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Male
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Monoterpenes
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administration & dosage
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Rats
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Rats, Wistar
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Receptors, Glucocorticoid
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genetics
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metabolism
5.Research of the effect of phentolamine in the treatment of severe hand foot and mouth disease with acute ;pulmonary edema
Chinese Journal of Primary Medicine and Pharmacy 2016;23(18):2798-2801
Department ofPediatrics,the Maternal and Child Health Hospital ofHuzhou,Huzhou,Zhejiang 313000,China(Shen ZZ)Objective To observe the effect of phentolamine in the treatment of severe hand foot and mouth disease with acute pulmonary edema.Methods 90 children with severe hand foot and mouth disease and acute pul-monary edema from January 2014 to December 2015 in our hospital were selected as the research subjects.All the children were randomly divided into 45 case of the observation group and 45 case of the control group.They were given conventional drug therapy and positive pressure ventilation,the control group was given milrinone,5μg/kg,the obser-vation group was given phentolamine,5μg/kg.The myocardial enzymes and cardiac troponin were detected before intervention and after 72h intervention,the blood gases index and ventilator parameter were analyzed,and the time of ventilator support and hospital stay were compared.Results (1)The CK -MB,CK,troponin of the observation group and the control group after treatment were (17.52 ±1.33)U /L and (28.23 ±3.89)U /L,(120.42 ±6.21)U /L and (150.86 ±8.67)U /L,(0.46 ±0.07)μg/L and (0.96 ±0.06)μg/L,which were significantly higher than before treatment (t =5.024 and 8.455,9.353 and 14.757,6.356 and 9.505,all P <0.01),but the CK -MB,CK,troponin of the observation group after treatment were significantly lower than the control group (t =5.601,7.426,5.829,all P <0.01 ).(2)The PaO2 and PaCO2 of the intervention group and the control group after 72h intervention were (80.24 ±14.35)mmHg and (62.30 ±5.68)mmHg,(39.38 ±6.08)mmHg and (46.10 ±3.42)mmHg respectively, which were significantly improved than before treatment,the differences were statistically significant (t =11.352 and 7.204,7.827 and 5.287,all P <0.01),there were statistically significant differences between the two groups after the intervention (t =7.426,5.829,all P <0.01).The FiO2 ,PIP,PEEP of the two groups after treatment were significantly lower than before treatment,the differences were statistically significant (t =8.446 and 6.905,9.705 and 7.832, 8.605 and 6.889,all P <0.01),there were statistically significant differences between the two groups after the inter-vention (t =3.461,5.165,4.532,P <0.05 or P <0.01).(3)The time of mechanical ventilation and hospitalization in the observation group and the control group were (3.42 ±1.61)d and (5.06 ±2.15)d,(15.40 ±3.62)d and (18.62 ±3.81)d,the differences were statistically significant(t =3.513,3.734,all P <0.05).Conclusion Phent-olamine has better effect than milrinone in the treatment of severe hand foot and mouth disease with acute pulmonary edema,it can control the disease progression and improve clinical outcomes and has better clinical value.
6.Analysis of risk factors of wound complications following the abdominal aorta balloon occlusion
Clinical Medicine of China 2013;29(z1):109-112
Objective To investigate the risk factors of wound complications following the abdominal aorta balloon occlusion in order to provide the basis for the preoperative management and reduce postoperative complications.Methods Two hundred and sixty-one patients with the sacral tumor aged over 18 were selected as subjects who hospitalized at Peking University People's Hospital from January 2006 to December 2012.All subjects were underwent sacral tumor posterior resection operation after occlusion of the distal abdominal aorta.Patients were divided into two groups according to the existence of postoperative wound disorder.The general information of the patients was collected including intra-operative data and post-operative data.SPSS19.0 software was applied for statistic analysis Results Among 261 cases,89 cases were with incision complications,and the incidence of complications was 34.1% (89/261).There was no significant difference regarding of age,weight,preoperative complications (P < 0.05).Compared with that of no complications group,operation time of wound complications group was longer ((218.27 ± 72.08) min vs.(197.40 ± 53.92) min,P =0.046),and intra-operative bleeding was more ((2368.0 ± 1984.7) ml vs.(1701.6 ±958.8) ml,P =0.000),as well as a longer balloon occlusion time ((78.0 ± 23.8) rain vs.(65.2 ± 17.8) min,P =0.005).Moreover long hospitalized periods was in wound complications group ((47.6 ± 26.3) d,vs.(26.7 ± 9.0) d,P < 0.05).Single factor analysis showed that the factors including operation time,intra-operative bleeding volume,time and times of balloon occlusion balloon occlusion were related to postoperative wound complications.Non conditional logistic regression analysis shows that factors of the balloon occlusion time(OR 1.028,95% CI 1.012-1.045,P =0.001) and block number(OR 6.266,95% CI 1.186-33.119,P =0.031) were related to the wound healing following balloon occlusion the abdominal aorta.Conclusion The risk factors of wound complications following the abdominal aorta balloon occlusion included occurrence balloon occlusion time and blocking times.That single balloon occlusion with 60 min reduced wound complication rate.
7.Changes in neural stem cells and their derived supporting factor in injured spinal cord tissues of rats
Chinese Journal of Tissue Engineering Research 2007;0(50):-
AIM:Neural stem cells(NSCs)and their supporting factors are related to nerve regeneration after central nerve injury, but there are few evidences for the changes of NSCs and their derived supporting factors.This study explores the change of NSCs and gene expression of stem cell-derived neural stem/progenitor cell supporting factor(SDNSF)in the injured spinal cord tissues of rats,and investigates the relation between the NSCs and expressions of SDNSF. METHODS:The experiment was carried out in the laboratory of Nantong University Neuroscience Institute between September 2005 and March 2006.①A total of 27 SD rats,cleaning grade,were offered by the Animal Experimental Center of Nantong University.Twelve rats used for immunohistochemistry assay were divided into sham operation group and spinal cord injury group,while other 15 rats used for RT-PCR detection were assigned into sham operation group and spinal cord injury group.All the disposals were in agreement with the ethical standard for animals.②The spinal cord contusion model of rats was established according to Allen's falling strike method.Laminectomy was conducted without strike in the sham operation group.The quantity and morphology of NSCs,gila cells and SDNSF-positive cells were observed by immunochemistry to detect expressions of nestin,glial fibrillary acidic protein(GFAP)and SDNSF in the injured spinal cord on days 8 and 16 after injury.The expression of SDNSF mRNA in the injured spinal cord was studied by semi-quantitative RT-PCR on days 4,8,12,16 after injury. RESULTS:①There were nestin-positive cells about central canal of spinal cord in the sham operation group.The nestin-positive cells showed erupted roots,migrated peripherally and proliferation,some GFAP-positive cells emerged and the SDNSF-positive cells were observed,which were similar to neuron on morphology on day 8 after injury.The quantity of nestin-positive cells decreased obviously,there were a number of GFAP-pesitive cells and few SDNSF-positive cells were showed on day 16 after injury.②RT-PCR revealed that SDNSF mRNA expressed in normal rate,and the expression was up-regulated on day 4 after injury,peaked on day 8,and decreased to the normal level on day 16. CONCLUSION:①There are some NSCs about the central canal of spinal cord,which proliferate and soon may differentiate to gila cell after injury in normal rats.②SDNSF is expressed in the normal spinal cord.The expression of SDNSF mRNA in the spinal cord varies with injured time,accompanying the proliferation and differentiation of NSCs. There are intimate relations between NSCs and expression of SDNSF in the repair of spinal cord injury.
8.Progress in research on antioxidants and obesity
Chinese Journal of Endocrinology and Metabolism 1986;0(04):-
It has been reported that the level of antioxidants is lower in obese patients compared with that in normal weight subjects. Important antioxidants, vitamin E and ?-carotene, are lowered in obese adults and children, which may cause lipid super oxidation and are associated with atherosclerosis, coronary heart disease and myocardial infarction. Copper and zinc are trace elements that compose parts of enzymes such as CuZn-superoxide dismutase (CuZn-SOD) which can scavenge free radicals. Plasma copper and zinc levels are lowered in obese individuals, which may lead to abnormality in glucose metabolism.
9.Research about the indexes to assess the biological behavior of the giant cell tumor of bone
Cancer Research and Clinic 2006;0(07):-
Recent studies about the GCT are focusing on searching for new standards and indexes to prognose the biological behavior of the GCT because of the traditional standards and indexes have been realized often not agree with to the clinic. we review the lately research about the biological behavior of the GCT, then analyse and sum up the correlative indexes that could be significant in studying the prognosis of the GCT.
10.Research progress in clinical use of LCarnitine
Parenteral & Enteral Nutrition 2004;0(05):-
L-Carnitine plays an essential role in the transfer of long chain fatty acids from the cytoplasm of a cell into the mitochondrion,where they undergo ?-oxidation.Carnitine deficiency is characterized by plasma and tissue carnitine concentrations below those required for the normal functions of the organism,including cardiomyopathy,myopathy,hypoketonemia,hypoglycemia,hyperammonemia.Studies show that supplement of carnitine could improve the clinical symptoms of some diseases.