1.The clinical significance of mesuring serum Mg2+ and ATP for critical patient
Chinese Journal of Clinical Nutrition 2000;8(1):38-
Objective To evaluate the effects of application of MgCI2, ATP, and ATP-MgCl2 on the funcrions of liver, kidney, heart and lung in experimontelly ischemic injuried animals, and to study the therapeutic role of exogenous Mg2+ and energy on repairmat of this injuny ming. Freeze etching, Histochemistry, Atomic Absorhtion Spectrum (AAS) and combine LM and EM. The experiment showed that MgCl2 and ATP protectived functions damnify organic (P>0.01) ,ATP-MgCl2 protected effect it notable results (P<0.01 ). Cell membrance was complete, glycogen became enriched in the cytoplasm, the uniform-distributed protein granule on Pside of plasma membtance of cell was found. There were positive material in the membrances and similar to normal group, cell michondia calcium decreased. Conclusions The exogenous application of ATP-MgCl was beneficial to the critical patient.
2.Advances in the Research of Long Life Recombinant Protein Drug
Nan QI ; Qing-Jun MA ;
China Biotechnology 2006;0(02):-
The recombinant protein drug usually has a short half-life after intravenous (IV) or subcutaneous (SC) administration. The methods of prolonging the half-life of recombinant protein drug in common use are mainly based on three principles: 1 Amplifying the molecule weight of protein drug; 2 Making use of drug balance in the blood; 3 Reducing Immunogenicity. Three methods were focused on: Analog construction, PEGylation and Albumin fusion technology. The characteristics, half-life and immunogenicity problem of their products in the market and under development are summarized.
3.The causes of death of emergency patients in Xi'an Children's Hospital from 2009 to 2010
Jun WEN ; Wenyi CHANG ; Nan ZHOU
Chinese Pediatric Emergency Medicine 2012;19(4):402-404
Objective To analyze the change of disease spectrum and the direct cause of death in Xi'an Children's Hospital emergency patients in the past 2 years.Methods The cases of death in 130 emergency cases from 2009 to 2010 were retrospectively analyzed.Results The main causes of death in 2009 were pneumonia,congenital heart disease,asphyxia,neonatal pulmonary hemorrhage and intracranial hemorrhage.Meanwhile,The main cause of death in 2010 were pneumonia,asphyxia,viral encephalitis,congenital heart disease and neonatal pulmonary hemorrhage,which significantly changed compared with 2009.Major direct causes of death were found:respiratory failure in 25 cases (27.5%),heart failure in 17 patients ( 18.7% ),shock in 17patients ( 18.7% ),asphyxia in 16 cases ( 17.5% ),and hernia in 16 cases ( 17.5% ),Conclusion In order to reduce the mortality rate of emergency patients,we should strengthen health care,actively manage pulmonary infection,systemic infection,and shock,control heart failure,and prevent aspiration.
4.Chemical constituents from Clerodendrum inerme
Haihan NAN ; Si ZHANG ; Jun WU
Chinese Traditional and Herbal Drugs 1994;0(04):-
Objective To study the chemical constituents from Clerodendrum inerme.Methods The constituents were isolated and repeatedly purified on silica gel column chromatography and their structures were elucidated by spectral analysis.Results Eight compounds: friedelin (Ⅰ), stigmasterol (Ⅱ), betulinic acid (Ⅲ), acacetin (Ⅳ), syringic acid (Ⅴ), p-methoxybenzoic acid (Ⅵ), apigenin (Ⅶ), and daucosterol (Ⅷ) were isolated from the aerial part of C.inerme. Conclusion Compounds Ⅱ, Ⅲ, Ⅴ, Ⅵ, and Ⅷ are isolated from C.inerme for the first time.
5.The relationship of Met326Ile variant of p85? regulatory subunit of phosphatidylinositol 3-kinase(PI3-K) with type 2 diabetes
Yanhu DONG ; Hairong NAN ; Jun WANG
Chinese Journal of Diabetes 2000;0(06):-
0.05),and the distribution of genotypes was in Hardy-Weinberg equilibrium.Data analysis showed Met326Ile variant did not impact on FIns,FPG,HOMA index,BMI and gene expression of PI3-K,though the expression of PI3-K gene was lower in type 2 diabetes than in control group.Conclusion The Met326Ile variant of the p85? regulatory subunit of PI3-K is likely to be functionally normal in type 2 diabetes and health people.
6.Image findings of morning glory syndrome
Jun HU ; Nan XIANG ; Junming WANG
Chinese Journal of Ultrasonography 1997;0(06):-
Objective To evaluate the significance of ultrasonography in diagnosis and differentiation of morning glory syndrome. Methods Ultrasonography,CT and fundus fluorescein angiography(FFA) features were retrospectively analyzed in 6 cases of morning glory syndrome.Results Ultrasonography, CT and FFA characters of morning glory syndrome were as follow: on the B-type ultrasonogram, the dark area of vitreous cavity extended to the posterior pole and optic papilla, projecting to the basal part of muscle cones, thus the posterior part of vitreous cavity looked like a converted bottleneck. Sometimes the light ribbon of retinal detachment can also be seen. On the A-type ultrasonogram, both vitreous cavity and bottleneck showed no ultrasonic echo and acted as an equable baseline without any evident wave crest. The attachment spot of optic nerve of eye turned thin and vitreous body protruded to the posterior wall of eyeball with spherical shape on CT imaging. In the earlier period of FFA, hypofluorescence appeared on the optic disc; then ,the abnormal arteriae and vein around the optic papilla were diplayed clearly; In the later period, optic discs were dyed with fluorescein. Conclusions Ultrasonography, CT and FFA showed imageological features of morning glory syndrome from different aspects, which was helpful for differentiating similar diseases such as optic disc coloboma. Especially, ultrasonography was considered as a more safe and reliable imageological method than other imageological methods in precisely diagnosing and differentiating morning glory syndrome and superior to the traditional fundus check which gives no integrity.
7. Clinical features and prognosis of 376 patients with T1micN 0M0, T1aN0M0 and T 1bN0M0 breast cancer
Tumor 2011;31(11):1026-1030
Objective: To analyze the clinicopathological features and prognosis of patients with T1micN0M0, T1aN 0M0 and T1bN0M0 breast cancer, and to evaluate the survival and independent prognostic factors. Methods: The clinicopathological data from 4 487 patients who could receive surgical operation between January 2002 and December 2005 were collected. The clinicopathological features, recurrence, metastasis and survival of 376 patients with T1micN0M0, T1aN 0M0 and T1bN0M0 breast cancer were retrospectively analyzed. Results: Three hundred and seventy-six eligible patients were identified. Of these 376 patients, 66 patients (17.6%) had T1mic breast cancer (pT≤0.1 cm), 122 patients (32.4%) had T1mic breast cancer (0.1 cm < pT≤0.5 cm), and 188 patients (50.0%) had T1b breast cancer (0.5 cm < pT≤1.0 cm). With the lager tumor size, the histology grade was higher, the positive rate of estrogen receptor was lower, and the incidence of adjuvant chemotherapy was higher (P < 0.05). Univariate analysis showed that the age, hormone receptor and HER-2 status were prognostic factors for 5-year disease-free survival. Multivariate analysis showed that the hormone receptor and HER-2 were prognostic factors for 5-year disease-free survival. The 5-year recurrence risk in the positive hormone receptor group was four times as high as that in the negative hormone receptor group (hazard ratio was 4.995, 95% confidence interval was 1.113-22.424). In negative hormone receptor group, there was no statistically significant difference in the risk of 5-year recurrence between patients with positive HER-2 and negative HER-2 (hazard ratio was 2.757, 95% confidence interval was 0.849-8.955). Conclusion: HR and HER-2 status were independent prognostic factors for 5-year DFS in T1micN0M0, T 1aN0M0 and T1bN0M 0 breast cancer. Hormone receptor positive disease with positive HER-2 status was associated with a high risk of cancer recurrence. Copyright© 2011 by TUMOR.
8.Study on thermoanalysis-based calamina processing.
Xiang-Long MENG ; Jun-Nan MA ; Nan-Nan CUI ; Yu-Hang PIN ; Kun LI ; Shuo-Sheng ZHANG
China Journal of Chinese Materia Medica 2013;38(24):4303-4308
Thermogravimetry (TG), TG-MS, Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM)-energy dispersive spectrometer(EDS) were adopted to investigate the pyrolysis characteristics of calamina. According to the findings of the qualitative and quantitative studies on the changes in the content of relevant elements, the whole shape, the functional groups, and the volatile components of calamina before and after being pyrolyzed, the 200-360, 580-750 degrees C were two sensitive temperature ranges related to the changes in effective component during calamina processing. Thermal weight loss was observed for ZnCO3, Zn(OH)2 and ZnCO3-2Zn(OH)2-H2O under 200-360 degrees C and for CaCO3 under 580-750 degrees C. The results of studies on chemical reaction kinetics showed good linear relations. This experiment integrated relevant methods and theories of physical chemistry and science of traditional Chinese medicine processing, and interpretes calamina processing techniques and mechanism, in order to provide a good example for modem studies on other traditional Chinese medicine processing.
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9.An observation of clinical effect of hydrocortisone sodium succinate injection on patients with septic shock
Huan LIANG ; Jun WANG ; Changqing MIAO ; Jiayan NAN ; Bo PENG
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2014;26(2):88-90
Objective To investigate the clinical efficacy of hydrocortisone sodium succinate for treatment of septic shock patients and their prognoses. Methods A prospective case control study was conducted. 49 patients with septic shock in the Department of Emergency of the First Affiliated Hospital of Xi'an Jiaotong University were enrolled from January 2010 to January 2012,and the patients were sequentially divided into two groups,the treatment group(24 cases)and the control group(25 cases),by the difference in odd or even number. All patients in the two groups accepted the conventional treatment. The treatment group additionally received hydrocortisone sodium succinate injection 200 mg,once a day for 5 days. The levels of serum procalcitonin(PCT),C-reactive protein(CRP)were measured in all the patients before treatment and 24 hours,72 hours and 7 days after treatment. The mortalities were compared in 14 days between the two groups. Results The levels of PCT,CRP before and 24 hours after treatment were not statistically significant different from those of pre-treatment in two groups(all P>0.05). PCT and CRP were decreased at 72 hours and 7 days after treatment in the two groups,and on the 7th day the decline was more significant, and compared with the control group,the levels of PCT and CRP in treatment group were reduced more markedly at 72 hours and on the 7th day〔PCT(μg/L):72 hours 9.73±2.10 vs. 12.36±2.56,7 days 5.33±2.05 vs. 8.76±1.78;CRP(μg/L):72 hours 69.12±13.61 vs. 109.68±16.16,7 days 20.16±9.64 vs. 42.32±13.16,all P<0.05〕. But the mortality in 14 days was not statistically significant different between control group and treatment group(52.0%vs. 45.8%,P>0.05). Conclusion The treatment with hydrocortisone sodium succinate can reduce the inflammation of patients with septic shock,thus it has clinical value in the improvement of the disease situation.
10.Blood coagulation and fibrinolytic response before and after acute aortic dissection repair
Nan LIU ; Jun ZHENG ; Wei SHANG ; Bo SUN ; Lizhong SUN
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(6):343-346
Objective To studied perioperative changes in blood coagulation and the fibrinolytic system in patients undergoing acute aortic disec tion repair analyse the reason and outcome for these changes.Methods Between August 2011 and December 2011,30 patientsk[22 male and 8 female,mean aged (43.0±9.13) years] had undergone open repairs of aortic dissection or aneurysm with DHCA.Indications for surgical intervention were type A sortic dissection in 26 patients and aortic aneurysm in 4 patients.According to the time from clinical onset of the dissection to operation,acute group(less than 7 days,A group) 20 patients; chronic group (more than 30 days and aortic aneurysm,C group) 10 patients.Data were gathered for muhiple preoperative and intraoperative factors including age,sex,diagnosis,aortic dissection type,preoperative ejection fraction,aortic surgery history,surgical intervention type,cardiopulmonary bypass (CPB) time,aortic cross-clamp time,blood transfusion volume (PRBC),mechanic ventilation time,ICU length of stay and hospital length of stay.Platelet (PLT),fibrin degredation product (FDP),D-dimmer,thrombin-antithrombin (TAT),and soluble fibrin monomer complex (SFMC) were assayed before and after operation,as well as 0 h,24 h,48 h,72 h.These valuables were recorded and compared statistically between two groups.Results Preoperative serum level and postoperative peak level of FDP and D-dimmer in group A were significant higher than in gnoup C (P < 0.05)and postopertive serum peak level in group C were significant higher than preoperative level (P < 0.05 ).Preoperative snd postoperative most hours there was significant intergroup difference on the serum levels of SFMC and TAT (P < 0.05 ).Preoperative level of PLT in group A is lower than in group C significantly (P < 0.05 ).The level of PLT in each hour after surgery were much lower than the level before surgery in both group (P <0.05 ).In addition,thromhus fonantion in ascending aortic falsc lumen in group A was much moee common than in group C (P <0.05 ).There was significant difference on incidence of postoperative complications between two groups (P < 0.05 ).Conclusion Activation of coagulation and fibrinolysis which results from acute aortic dissection and surgical procedure was obscrved before and after surgery to treat acute aortic dissection.There is increasing risk for consumption coagulopathy and thromboembolism during perioperative period.