Objective:To develop an HPLC-DAD method for the simultaneous determination of seven active constituents chloro-genic acid, 3,5-dicaffeoylquinic acid,linarin, luteolin-7-O-β-D-glucoside, apigenin-7-O-β-D-glucoside , luteolin and acacetin in the different parts of Dandrantherna morifolium( Ramat. ) Tzvel. Methods:The chromatographic separation was performed on a Diamonsil C18 column (200 mm × 4. 6 mm,5 μm) with 0. 2% phosphoric acid-acetonitrile as the mobile phase with gradient elution at the flow rate of 1 ml·min-1 . The detection wavelength was set at 348 nm,and the column temperature was maintained at 30 ℃. Results:Chlorogenic acid, 3,5-dicaffeoylquinic acid, linarin, luteolin-7-O-β-D-glucoside, apigenin-7-O-β-D-glucoside , luteolin and acacetin was linear within the range of 0.014-0.560 μg(r =0.999 5) ,0.031-1.260 μg(r =0.999 6), 0.022-0.900 μg(r =0.999 8), 0. 036-1. 440 μg(r=0. 999 6),0. 029-1. 160 μg (r=0. 999 7) , 0. 005 5-0. 220 0 μg (r=0. 999 8) and 0. 006 5-0. 260 0 μg (r=0. 999 9), respectively. The average recovery was 97. 91%, 97. 91%, 97. 55%, 96. 43%, 96. 44%, 97. 07% and 97. 48%, and RSDs was 1. 24%, 1. 29%, 1. 48%, 1. 83%, 0. 67%, 1. 88% and 1. 80%, respectively. Conclusion: The method is convenient, accurate and reproducible in the quality control of the multicomponents in different parts of Dandrantherna morifolium( Ramat. ) Tzvel.

AIM: To study the role of scavenger receptor A(SR A) in the uptake of oxidized low density lipoprotein(OxLDL) in mouse peritoneal macrophages(MPM). METHODS: Comparing the difference of the uptake of OxLDL in SR A-deficient and wild-type MPM. RESULTS: The results showed that the binding of OxLDL wasn't apparently reduced in SR A-deficient MPM. The association of OxLDL was reduced by 35.8% and degradation of OxLDL was reduced by 42% in SR A-deficient MPM compared with those in wild-type MPM. CONCLUSION: Studies showed that SR A didn't play an important role in the uptake of OxLDL in MPM. Approximately 70% of the uptake of OxLDL in macrophages is attributable to non-SR A receptor.

Objective To investigate the application of combined detection of serum calcitonin(PCT),interleukin-6 (IL-6)and C reactive protein(CRP)in early diagnosis of sepsis in intensive care unit(ICU).Methods ICU ward diagnosed 89 cases of patients with early sepsis(sepsis group),fever and did not peak use of antibiotics,send blood to blood culture and detection of PCT,IL-6,CRP level,and at the same time to select 132 cases of healthy subjects(healthy control group),blood samples were collected to detect PCT,IL-6,CRP;PCT,IL-6 for the detection of electrochemical luminescence method.The detection of CRP by immunoturbidimetric method.Results ICU patients with sepsis in PCT,IL-6,CRP detection value is significantly higher than the control group,and the difference was statistically significant(P＜0.01);combined detection sensitivity and specificity was significantly higher than that of single detection,PCT+ IL-6,PCT+ CRP,PCT+ IL-6-+-CRP sensitivity of three kinds of combined detection were 91.3 ％,90.5％ and 91.9％,the specificity was 89.5％,88.3％ and 89.4％,and accuracy were 85.5％,85.3％ and 85.6％.Conclusion Combined detection of PCT+ IL-6 + CRP or PCT+ IL-6 or PCT+CRP,is helpful to the clinical recognition of early sepsis.

BACKGROUND:Many foreign studies confirm that recombinant human growth hormone (rhGH) is a safe and effective agent for treatment of idiopathic short stature (iSS), but there are no long-period and systematical researches reported in China.OBJECTIVE: To observe the promoting effect of rhGH on the growth of children with ISS.DESIGN: Case-control observation.SETTING: Department of Pediatrics, the Affiliated Hospital of Medical College of Qingdao University.PARTICIPANTS: Ninety-eight children with ISS who were treated in the Department of Pediatrics, the Affiliated Hospital of Medical College of Qingdao University during December 2004 to March 2006 were involved in this study.Informed consents were obtained from the guardians of these children with ISS. According to the etiological factors, the children were assigned into 2 groups: ISS group (n =30) and growth hormone deficiency (GHD) group (n =68).METHODS : The children in ISS group and GHD group received subcutaneous administration of home-made rhGH (Jinsai Pharmaceutical Co.,Ltd., Changchun at 0.15 IU/(kg ·d) and 0.1 IU/(kg ·d) respectively before sleeping within 6 months.The body height, body mass and bone age were measured before, 3 and 6 months after treatment. The local region of injection was observed and the growth rate was calculated. Bone age was calculated by graphic atlas method and body height was predicated by BP method.MAIN OUTCOME MEASURES: Body height, body mass, bone age and growth rate of children in two groups before, 3 and 6 months after treatment.RESULTS: All the 98 children wereinvolved in the result analysis, without deletion. ①Intragroup comparison: The body height, growth rate of children in two groups 3 and 6 months after treatment were significantly superior to those before treatment [ISS group: body height:(126.5±9.4), (129.1±8.6), (121.1 ±11.0) cm (P ＜ 0.01), growth rate: (7.3±2.9), (7.5±2.7),(3.5±2.1) cm/year (P＜ 0.01); GHD group: body height: (111.0±13.0),(114.0±13.0),(108.0±12.0) cm(P＜ 0.01),growth rate: (13.2±3.5), (13.5±3.6), (4.0±2.9) cm/year(P ＜ 0.01)]. Six months after treatment, body height was increased in 27 of 30 children in ISS groups, and in all the 68 children in GHD group. ② Intergroup comparison: The growth rate of children in GHD group was concurrently higher than that in ISS group 3 and 6 months after treatment. ③Adverse reaction and side effect: During the treatment, hypothyroidism was observed in 2 children within 1 to 3 months of treatment,but there was no influence on growth rate after oral administration of thyroxin tablets. Local red swelling of skin was observed in another patient, which stopped automatically after one week duration, but the injection continued.CONCLUSION: Home-made rhGH is a safe and effective reagent for treatment of ISS. It can obviously enhance the body height and growth rate of children. Whereas the inhomogeneity of treatment effect does exist, what's more, therapeutic effect in ISS children is inferior to that in GHD children.

Objective To investigate whether low-protein diet has protective effect on the progression of renal interstitial fibrosis in rats with cyclosporine A (CsA)-induced nephropathy. Methods Eighteen male Sprague-Dawley rats were randomly divided into three groups (6 rats in each group). The rats in control group (C group) received common diet; in model group (M group) low-salt diet; in intervention group (Ⅰ group) low-salt and low-protein diet. After diet adaptation period of one week, the rats in C group received subcutaneous injection of olive oil 1 mg/kg daily for 5 weeks, while M group and Ⅰ group subcutaneous injection of CsA (diluted into 25 g/L with olive oil) 1 ml/kg for 5 weeks. All the rats were sacrificed at the end of the 5th week. The food-intake and body weight were measured daily. The creatinine clearance (Ccr) was examined before rats were sacrificed. The semi-quantitative pathological analysis on kidney sections was performed. The mRNA and protein expression of transforming growth factor-β1 (TGF-βI) and type Ⅰ collagen (Col Ⅰ) in kidney tissue was determined with real time PCR and immunohistochemical staining, respectively. Results The food-intake and body weight of rats in M and I groups were significantly lower than those in C group (P<0.05). Compared with C group, the Ccr levels in M and Ⅰ groups were significantly reduced [(0.65±0.15) ml/min, (0.40+0.13) ml/min vs (1.55±0.29) ml/min, P<0.05], the relative fibrosis areas of kidney interstitium in M and I groups were significantly increased (3.60%±0.46%, 3.26%±0.75% vs 0.44%±0.24%, P<0.05), the mRNA and protein expression of TGF-β1 in M and I group was significantly up-regulated (by 2.6 and 3.1 times in mRNA and by 1.5 and 1.6 times in protein, respectively, P<0.05), and the mRNA and protein expression of Col Ⅰ in M and I groups was also significantly up-regulated (by 3.0 and 3.5 times in mRNA and by 2.3 and 2.1 times in protein, respectively, P<0.05). There were no significant differences between M and I groups in every parameters above-mentioned except the rat body weight and Ccr. Both the body weight and Ccr in Ⅰ group were significantly lower than those in M group (P<0.05). Compared with C group, the urine osmotic pressure in M group and in I group were deceased (for M group, P>0.05; for I group, P<0.05). Compared with C group, the serum cholesterol levels in M and I groups were significantly increased (P<0.05), and the serum phosphorus level in I group was significantly decreased (P<0.05). The levels of serum albumin and serum calcium of all three groups had no statistical differences (P>0.05). Conclusion Low-protein diet has no renoprutective effects on the rat model of cyclosporin A nephropathy, on the contrary, may induce body weight loss.

Advanced studying doctors play important roles in the clinical services, and how to train them to improve training quality is worth investigating. We classified them into three types such as the clinical skills-improved, the special skills-trained and clinical knowledge eextensively-spread, then employed the individual teaching methods and emphasized the medical ethics during the training, which is not only beneficial to us, but also of great importance and necessity to advanced studying doctors themselves.

Objective To study the effect of cervical disc replacement in the treatment of cervical spondylotic myelopathy(CSM).Methods 21 patients with CSM(17 cases of spondylotic myelopathy,2 cases of radiculopathy and 2 cases of acute soft disc herniation)were treated by anterior decompression and replaced by the Bryan cervical disc prosthesis. Results All cases were: followed for 4～12 months, average 8 months. The pre-operative JOA score was 8.5 and post-operative score was 15.5 on average. There were no prosthesis, curve was good. Replaced segment achieved stability and restored partial of normal ROM. There was no subsidence of implant and no worsening of pre-operative symptoms, post-operative 21 cases remained flexion/extension movement at replaced segments at latest follow up. There was no neck stiffness and restriction of movement complained by the patients. Conclusion The Bryan cervical disc replacement for the treatment of CSM has offered an excellent early clinical outcome.

The effects of all-trans-retinoic acid (ATRA) in low doses supplementation on concentrations of polar retinoid metabolites (PRM) and retinoids in the ethanol-fed rat liver, and on hepatocyte injury were investigated. The rat model of alcoholic liver disease (ALD) was induced by intragastric infusion of ethanol, and then the rats were administrated with ATRA in two different doses (150 microg/kg body weight and 1.5 mg/kg body weight) for 4 weeks. Concentrations of retinoids in rat liver and plasma were determined by using HPLC. Liver tissues pathologic changes were observed under the light microscopy and electron microscopy. The serum transaminases concentrations were measured. The results showed that the HPLC analysis of retinoids revealed that retinoids (vitamin A, RA, retinyl palmitate) concentrations in ethanol-fed rat liver and RA concentration in ethanol-fed rat plasma were markedly diminished (P<0.01) after ethanol feeding for 12 weeks. Furthermore, obvious peaks of PRM were formed in livers of ethanol-fed rats. ATRA 150 microg/kg supplementation in ethanol-fed rats for 4 weeks raised RA concentration in both liver and plasma, and also raised vitamin A concentration in liver to control levels, partially restored retinyl palmitate concentration (P<0.05) in liver. ATRA 1.5 mg/kg supplementation raised not only RA concentrations in liver and plasma but also retinyl palmitate concentrations in liver. However, the vitamin A concentration in liver of ATRA-supplemented rats (1.5 mg/kg) was higher than that of controls (P<0.05). The histologic observation of liver tissues indicated that ATRA treatment notably alleviated hepatocellular swelling, steatosis, the swelling of mitochondria and proliferation of smooth endoplasmic reticulum (SER). ATRA treatment greatly decreased levels of serum transaminases as compared with the only ethanol-fed group (P<0.05). It was concluded that low-dose ATRA treatment could restore retinoids concentrations and abolish the PRM formation in liver of ALD rats, and then ameliorate the injury of liver cells.

The aim is to explore and build the treatment-care and four linkage combination integrated care model,so as to provide methods and ideas for the medical service practice.By exploring the mechanism and hierarchical management mode of the treatment-care and four linkage combination integrated care model,we have set up a whole process management closed loop in four combined linkage,including hospital,medical care,community and family,raised to solve the medical combination of acute medical treatment and the problems existing in the continuing care.After more than a year of preparation and practice,we have build the social service centered medical combined with four linkage information platform,and have realized the online and offline medical combination of care services in hospital,medical care,community and family.Based on Intemet technology,the building of the treatment-care and four linkage combination integrated care model is the efficient method to solve the difficulties and problems of the health care and the continuation demands among elderly under the current conditions,and the feasible way to realize theslight illness in the community,disease the hospital,care in institutions,pension in the family.

AIM: To investigate the effects of lectin-like oxidized low density lipoprotein receptor-1 (LOX-1) on the expression of MCP-1 in the cultured human unbilical vein endothelial cells (HUVECs). METHODS: Cultured HUVECs was incubated with ox-LDL, or preincubated with carrageenan and polyinosinic acid. LOX-1 and MCP-1 mRNA and protein were determined by RT-PCR and Western blot. RESULTS: Incubation of HUVECs with ox-LDL (from 0-100 mg/L) for 24 h markedly increased the expression of LOX-1 and MCP-1 (mRNA and protien) in a concentration-dependent fashion. Preincubation of HUVECs with carrageenan and polyinosinic acid, the chemical inhibitors of LOX-1, for 2 h, ox-LDL-mediated upregulation of LOX-1 and MCP-1 was suppressed (P