OBJECTIVE:To analyze the volatile oil extracted from the root of Lithospermum erythrorhizon and Arnebia euchroma.METHODS:Volatile oil were extracted from L.erythrorhizon and A.euchroma by steam distillation and determined by GC-MS.RESULTS:34 components and 36 components of volatile oil extracted from the root of L.erythrorhizon and A.euchroma were separated and identified respectively,accounting for 70.16% and 74.79% of the total peak area.There were 4 kinds of common peak among these components.The main components were 2,6-di-tert-butyl-p-Cresol(9.29%),2,4-di-t-butyl-1,3-Pentadiene(8.17%),and trans-Nerolidol(6.05%) in L.erythrorhizon and muscalure(16.28%),3-Allyl-2-methoxyphenol(6.20%)and camphor(5.82%) in A.euchroma.CONCLUSION:The study can provide scientific basis for the further development of Radix Arnebiae.

Idiopathic pulmonary fibrosis(IPF), with unknown pathogeny, is an interstitial lung disease.The pathological features are diffuse epithelial-cell lesion, fibroblast proliferation, myofibroblast differentiation and excessive extracellular matrix deposition.CXCR4 is the predominant chemokine receptor on fibrocytes;CXCL12 is the only ligand of CXCR4.A large number of studies have shown that CXCL12/CXCR4 biological axis plays an important role in the pathogenesis of idiopathic pulmonary fibrosis.Under the regulation of hypoxia, HIF-1α and PI3K-Akt-mTOR path, CXCL12/CXCR4 biological axis promotes lung fibroblast proliferation, myofibroblast differentiation and extracellular matrix deposition, resulting in development and progression of IPF.

BACKGROUND:The authors' experiments of the earlier stage proved that the hypocrellin B photodynamic therapy(HB-PDT) can cause selective injuries to choriocapillaries. It is not known whether changing the therapeutic parameters would gain a different result regarding the choriocapillaries after the hypocrellin B photodynamic treatment for a month.OBJECTIVE: To observe the features of Chinchilla rabbit choriocapillaries after HB-PDT treatment and to probe into the research prospect of using HB-PDT to treat choroidal neovascularization (CNV) and of using green light as the light source for PDT.DESIGN: A single sample study.SETTING: Laser Department of the Chinese PLA General Hospital.MATERIALS: The trial was conducted at the Laser Department and the Department of Pathology of the Chinese PLA General Hospital as well as the Department of Photoelectric Engineering of Beijing University of Science and Engineering. The materials included photosensitizing agent hypocrellin B (HB), a green laser transmitter, fundus fluorescence camera and transmission electronic microscope.METHODS: The 532 nm green laser transmitter and slit-lamp microscope were connected by light fiber. Chinchilla rabbits of 2.5 to 3.5 kg was narcotized generally and HB(1. 0 mg/kg) was injected into the marginal ear vein. HB was excited with the green laser of 532 nm. The power density of the light spot on fundus was 300 mW/cm2, and the energy density 30 J/cm2. Laser was applied immediately after HB injection and the diameter of the light spot was 2 000 μm. Direct observation of retina, fluorescein fundus angiography and observation with light microscope and electronic microscope were conducted on the 1st, 7th and 28th days respectively after PDT to find the biological features of retina and the choroid.MAIN OUTCOME MEASURES: Non-selective injury of retina through direct observation of the fundus; obliteration of the choriocapillaries detected through fluorescein fundus angiography; the position and extent of non-selective injury in retina and the structural changes of the choriocapillaries observed through the light microscope; the ultrastructural changes of the fundus observed through the electronic microscope.RESULTS: One day after PDT, photodynamic thrombosis was formed in choriocapillaries being illuminated and the external layer of retina was apparently injured. On the 7th day, injury of endothelial cells of the choriocapillaries was aggravated without obvious changes of the main vessels of choroid. On the 28th days, fibrous tissue appeared where the choriocapillaries had been and the glass membrane became thickened. Repair and proliferation of RPE cells appeared in the laser illuminated area.CONCLUSION: The biological effect in the target area and non-selective injury in the non-target area began to appear from the 1st to the 7th day after PDT and continued to aggravate. That would be repaired by fibrous tissues from the 28th day. It deserves further studies to treat age-related macular degeneration or other diseases in fundus characterized with choroidal neovascularization.

Serum creatinine was determined by enzymatic method.99mTc-GFR was measured by 99mTc-DTPA dynamic renal imaging and considered as GFR marker in 210 males and 180 females with type 2 diabetes,eGFR was calculated by Cockcroft-Gault formula,MDRD equation7,abbreviated MDRD equation,modified MDRD equation for Chinese (c-7GFR4 and c-aGFR4),and CKD-EPI equation.They were analyzed by correlation,regression,Bland-Altman analysis and receiver operating characteristic (ROC) curve analysis.The correlation coefficients for Cockcroft-Gault formula,MDRD equation7,abbreviated MDRD equation,c-7GFR4,c-aGFR4,and CKD-EPI equation were 0.79,0.76,0.77,0.76,0.76,0.81 respectively.And the differences were-14.99,-18.85,-23.79,-25.85,-32.07,and-7.16,respectively.The area under ROC curves were 0.91,0.88,0.89,0.88,0.90,and 0.92,respeetively.Kappa values were 0.67、0.52、0.39、0.49、0.46、0.54respectively.The CKD-EPI equation seams to be the most accurate measurement among the six methods when the serum creatinine was determined by enzymatic method in Chinese type 2 diabetic patients.

Objective To establish a RP- HPLC method for quantitative determination of puerarin in Laige Granules. Methods The separation was performed on Econosphere C18 column (4.6 mm? 250 mm,5 ? m) with mobile phase of methanol and 1 % acetic acid solution (25 ∶ 75) at a flow rate of 0.8 mL/min. The UV detection wavelength was 250 nm and the column temperature was 40 ℃ . Results The linear range of puerarin was 0.2～ 1.0 ? g, r = 0.999 7. The mean recovery was 100.56 % (RSD=1.21 % , n = 5 ). Conclusion This method is simple, accurate, sensitive and with good reproducibility .

Objective To evaluate the quality of life and influencing factors in patients with breast cancer after breast-conserving surgery, so as to provide theoretical support for preoperative health education and postoperative rehabilitative intervention for these patients. Methods 120 breast conserving surgery (BSC) and 140 modified radical mastectomy (MRM) patients were assessed with Functional Assessment of Cancer Therapy-Breast (FACT-B V4.0) one week after operation. Life quality was evaluated between the two groups, and the influencing factors were also analyzed. Results Postoperative breast cancer patients after breast conserving surgery were with good breast complementary attention, lower emotion state. The other scores of quality of life had no statistical difference. Influencing factors on the quality of life of breast cancer patients were anxiety state, relationship of family members, position of surgery and character type. Conclusions It suggests that nursing specialists should make out corresponding, scientific and reasonable nursing intervention schemes based on the characteristics of different groups of people to ease psychological burden, and elevate the quality of life effectively for postoperative breast conserving surgery patients.

Objective To explain the physiological properties of serum leucine aminopeptidase (LAP) and discuss the different levels and clinical meaning of serum LAP during the second and the third trimester of gestation.Methods Rate turbidimetry was used to assay serum LAP activity of 175 pregnant women in the second trimester of gestation, among whom 162 were normal and 13 were intrahepatic cholestasis of pregnancy (ICP), and 302 pregnant women in the third trimester of gestation, among whom 215 were normal, 76 were ICP, 6 were pregnancy-induced hypertension syndrome and 5 were premature delivery, and 100 healthy or non-pregnant women.Results Serum LAP activity of pregnant women in the group of the second trimester of gestation was (140.43?64.39) U/L, in the group of the third trimester of the gestation was (234.72?93.53) U/L, and in control group was (72.62?15.31) U/L. The serum LAP activities of the two pregnant groups were much higher than that of control group (P

[Summary] Propylthiouracil-induced anti-neutrophil cytoplasmic antibodies ( ANCA ) positive vasculitis ( APV) is an autoimmune diseases with multi-system damage. Its basic pathological lesions are characterized by necrotizing vasculitis. We present a case of propylthiouracil-induced APV, with regard to its pathogenesis, clinical manifestation, diagnosis, treatment, and outcomes for futher understanding this disease.

Objective To investigate the real experiences of nurses participating in the treatment of patients with new respiratory infectious diseases. Method The semi-structural interview method was used to carry out in-depth interviews with 8 nurses who were involved in the whole process of treatments and cares of patients with SARS and H1N1 influenza to understand their real experiences. Result The nurses, who participated in the treatment and care to patients with new respiratory infectious diseases, experienced such emotions of nervousness, excitement, anxiety, fear, exhaustion, obtained support from their families, hospitals, society and meanwhile recognized their lack of professional knowledge and clinical skills. Conclusion The nurses participating in the treatment of patients with new respiratory infectious diseases should be given strengthened professional training , psychological and social support.

Objective To observe the alteration of coagulation function in the patients with stage Ⅲ～Ⅳ non-Hodgkin lymphoma and evaluate its clinical significance. Methods 62 patients with NHL and 20 healthy examiners were studied. The parameters of PT, APTT, TT and FIB in blood plasma were detected.Results The levels of APTT and FIB in NHL group were significantly higher than that in control group (P <0.05 and<0.01), and in stage Ⅲ and Ⅳ NHL groups both were significantly higher than that in control group and stage Ⅱ group (P< 0.05 and <0.01). The levels of FIB in ⅢB, ⅣA and ⅣB group were significantly higher than that in control group and ⅢA group (P<0.01), but there was no statistical significance among ⅢB, ⅣA and ⅣB group (P >0.05).Conclusion The NHL patients especially ⅢB～ⅣB patients usually accompany with abnormal coagulation function and hypercoagnlable states, and it' s necessary to monitor their coagulation function.