Objective: To establish the method of fingerprint analysis on volatile oil of Pogostemon cablin (Blanco) Benth. cultivated in Shipai country by GC MS, and to study the main characteristic components. Methods: The main components of the volatile oil of Pogostemon cablin (Blanco) Benth. from different colletion time in Shipai country were determined by GC MS, and compared with the volatile oil of “Gaoyao huoxiang” and “Hainan huoxiang” cultivated in the same GAP plots. Results: RSD of precision and reproducibility and stability is in the range of 5%, and the main components of the volatile oil of “Shipai huoxiang” from different collection time are nearly similar, and the content of Pogostone increases along with cultivation time, and the content of Pogostone and Patchoulic alcohol are significantly differences compared with the “Gaoyao huoxiang” and “Hainan huoxiang”. Conclusion: The method is reliable, accurate and can be used for quality control of volatile oil of Pogostemon cablin (Blanco) Benth.

Objective To contrast the accuracy rate of nuclear magnetic resonance imaging (MRI)-staging and the International Federation of Gynecology and Obstetrics (FIGO, 2009) clinical-staging, and evaluate the value of MRI in diagnosis of lymph node metastasis in cervical cancer. Methods The surgical pathology was used as golden standard, the accuracy rates of MRI-staging and FIGO-staging were compared in 86 patients of cervical cancer (surgical pathological staging≥Ⅰb). The lymph nodes with slightly hyperintense signal in diffusion-weighted magnetic resonance imaging (DWI) and with minor axis≥1 cm in T2WI-TRA (T2 weighted imaging-transverse section) were considered as metastatic lymph nodes, the characteristics of lymphatic metastasis diagnosed by MRI were analyzed, and the accuracy rate, the sensitivity, the specificity, the positive predictive value and the negative predictive value of MRI were evaluated. Results The accuracy rate of FIGO-staging was 80.2%(69/86), and the accuracy rate of MRI-staging was 83.7%(72/86), there was no significant difference between them (P > 0.05). The accuracy rate of lymphatic metastasis diagnosed by MRI was 94.2%(81/86), the sensitivity was 73.3%(11/15), the specificity was 98.6%(70/71), the positive predictive value was 91.7%(11/12), and the negative predictive value was 94.6%(70/74). The true positive metastatic lymph nodes in 11 cases were located in the external iliac nodes or common iliac lymph nodes, the average short/long diameter was 0.76. The forms of lymph nodes were as follows:quasi-circular (n=3), border irregularity (n=3), huge fusion form (n=4), and 1 with central necrosis area. One case of false positive metastatic lymph node was located in the right external iliac node, with the sharp of huge fusion form in T2WI/TRA, comminution in T2WI-axial thin slices, and long strip in T2WI/SAG. Conclusion The accuracy rates of MRI-staging and FIGO-staging were both higher, which can diagnose lymphatic metastasis relatively accurately when they are combined together.

This paper reviews the clinical application characteristics of artificial skin for external used in the treatment of burn wound at recent years. Skin is the important organ to protect the environmental stability in vivo, resist the outside invasion, evacuate moisture and regulate body temperature, as well as one component of immunity system. Subsequent to the burn injury, various damages of the organism may be related to the loss of skin barrier. Epidermal substitutes comprise the epidermal cells growing on the degradable matrix or polymer film; While dermal substitutes are shaped as a matrix with active bacterium or without cells, and they can induce the migration and proliferation of fibroblasts, together with the secretion of extracellular matrix; Full skin substitutes include both epidermal ones and dermal ones. With the progress on the biomedicines and the materials, the research regarding artificial skin also develops. However, it is still a key problem to construct an ideal artificial skin, which contains vessels and innervation, skin accessory structure and physiological function of normal skin.

Objective To discuss the clinical application of MSCT-guided BARD gun biopsy in diagnosing pulmonary lesions. Methods Under MSCT-guidance percutaneous transthoracic biopsy of lung with BARD gun was performed in 68 patients with pulmonary lesions. Results All the procedures were well performed with the technical successful rate of 100%. The final diagnosis was based on the pathological findings or clinical follow-up observation. The accuracy of the qualitative diagnosis was 94.1%. Of 68 patients, squamous cell carcinoma was found in 30, adenocarcinoma in 21, metastases in 7, inflammatory pseudotumor in 3, lung abscess in 2, and tuberculosis in one. The false-negative rate in making diagnosis was 5.9%. The complication occurrence was 8.8%. Conclusion BARD gun has the advantage of making coaxial- multipoint biopsy. With the help of MSCT-guidance and the full use of the operating advantage of BARD gun, this technique is safe and reliable, with higher accuracy and less complications.

Phospholipase A_2 (PLA_2) inhibitor quinacrine was used to explore protective effect on multiple organ dysfunction (MOD) caused by intestinal ischemia-reperfusion (I/R) in rats. Gut I/R caused the increase of gut PLA_2 activity and induced endotoxemia and bacteriemia. Pretreatment with intravenous quinacrine 10mg?kg~(-1) attenuated bacteria and endotoxin translocation,markedly lowered the levels of thromboxane A_2 and prostacyclin I_2 in blood,and provided protection from the development of vital organs dysfunction. As a result,the survival rate in pretreatment group increased by 25%. The results demonstrate that gut I/R promotes gut barrier failure,then contributes to the development of MOD by allowing bacteria or endotoxin reaching the circulation. PLA_2 and PLA_2-dependent lipid mediators play an important role in the development of gut I/R injury and MOD. Intravenous quinacrine has protection against MOD resulting from gut I/R.

To investigate the quality of different parts of Radix Fici Hirtae. The content and components of volatile oils and ethanol-extracts from different parts of Radix Fici Hirtae were analyzed by the combination of gas chromatography and mass spectrometry (GC-MS). The content of volatile oils in the cortex was higher than that in the xylem and the chemical components either in the cortex or in the xylem are similar. The main components in volatile oils are hexadecanoic acid, oleic acid+linoleic acid, linoleic acid amide, palmitic acid amide,stearic acid amide and dibutyl phthalate. The main components in ethanol-extracts are psoralen, hexadecanoic acid, hexadecanoic acid ethyl ester, bergapten, oleic acid and linoleic acid. The content of psoralen in the cortex was higher than that in the xylem.[Conclusion]The chemical components in different parts of Radix Fici Hirtae are similar but the contents of volatile components and psoralen are higher in the cortex than those in the xylem.

This list of clincal data management documentation is to ensure standardized and adequate archival of trial documents and records in clinical data management, which is applicable to all of phase I-IV clinical trials.

Objective To compare the volatile oil and constituent content in Pog ostemon cablin Benth. propagated by cuttage and tissue culture. Methods The vola tile oil assay of Chinese pharmacopoeia and GC-MS method were used. Results The volatile oil and constituent content of Pogostemon cablin Benth. reproduced by cuttage was 14.2 mL/kg and 81.31 %,respectively. The volatile oil and constituent content of Pogostemon cablin reproduced by tissue culture was 12.2 mL/kg and 82.98 %,respectively. Conclusion The volatile oil content and constituent content of Pogostemon cablin Benth. reproduced by tissue culture are similar to which reproduced by cuttage.

Air ; Animals ; Diving ; Male ; Rats ; Rats, Sprague-Dawley ; Reactive Oxygen Species ; metabolism ; Spleen ; metabolism

Objective To evaluate the effect of ulinastatin on Th1/Th2 cell balance in a rat model of stress-induced gastric ulcer (GU).Methods Twenty-four male SPF Sprague-Dawley rats,aged 6-8 weeks,weighing 180-220 g,were randomly divided into 3 groups (n =8 each) using a random number table:control group (group C),stress-induced GU group (group GU) and ulinastatin group (group U).The rats were subjected to water-immersion and restraint stress for 3.5 h to establish GU model in S and U groups.At 10 min before water-immersion,normal saline 0.4 ml and ulinastatin 100 000 U/kg were injected via the tail vein in GU and U groups,respectively.After GU model was established,the abdomen was opened after anesthesia.The whole stomach was exposed,and the gastric mucosal damage was evaluated under microscope,ulcer index (UI) was recorded,and the pathological changes of the gastric mucous membrane were observed.Spleen samples were obtained to detect T-bet,Gata-3,interferon-γ (IFN-γ),and interleukin-4 (IL-4) mRNA expression by RT-PCR.The ratio of T-bet mRNA expression/Gata-3 mRNA expression (T-bet/Gata-3) was calculated.Results Compared with group C,T-bet mRNA expression was significantly down-regulated,Gata-3 mRNA expression was up-regulated,T-bet/Gata-3 ratio was decreased,UI was increased,and no significant changes were found in IFN-γ and IL-4 mRNA expression in GU group,and UI was increased,and no significant changes were found in the other parameters in group U.Compared with group GU,the ratio of T-bet/Gata-3 was significantly increased,and UI was decreased,and no significant changes were found in T-bet,Gata-3,IFN-γ,IL-4 mRNA expression in group U.The gastric mucosal damage was significantly mitigated in GU group as compared with group U.Conclusion The mechanism by which ulinastatin mitigates stress-induced GU may be related to correction of Th1/Th2 cell imbalance in rats.