Unicellular green alga,Dunaliella salina(D.salina),is a biflagellar alga without cell wall,which is a kind of very important eukaryotic microalga.In the previous study,the research of D.salina focus on the morphology,the mechanism of salt tolerance and ?-carotene,however,with the rapid development of microalgal biotechnology,a lot of work about D.salina was reported in recent years.In the area of molecular biology,the studies of D.salina mainly place emphasis on the cloning and analysis of important functional genes,regulatory sequences,and the expression of foreign genes using D.salina as host.The research advance in these aspects were reviewed.

OBJECTIVETo explore the effect of Sedum sarmentosum Bunge Extract (SSBE) on severe acute pancreatitis (SAP) induced acute lung injury (ALI) model rats and their excessive inflammatory reactions.

METHODSForty-two healthy adult male Sprague-Dawley (SD) rats were randomly divided into 3 groups, the sham-operated control group (C), the SAP group (SAP), and the SSBE treated group (SSBE), 14 in each group. SAP induced ALl rat model was induced by retrograde injection of 5% sodium taurocholate (1 mL/kg) into the pancreatic duct. SSBE (100 m/kg) was administrated subcutaneously after the establishment of the SAP model. Equal dose of SSBE was injected again 12 h later. Equal volume of normal saline was administrated in the same way for rats in the C group and the SAP group. Rats were sacrificed after successful modeling and samples taken at 12 and 24 h. Pathological changes in the pancreas and the lung tissue were observed under light microscope. The ascites, serum amylase (AMS), wet/dry proportion (W/D) of the lung tissue, activities of myeloperoxidase (MPO), interleukin-1 (IL-1), IL-6, and tumor necrosis factor-alpha (TNF-alpha) were also measured.

RESULTSAscites and serum AMS activities significantly increased; MPO, IL-1, IL-6, TNF-alpha contents, and W/D ratio also significantly increased in the SAP group, when compared with the C group (P<0.05). Compared with the SAP group, those parameters were all attenuated in the SSBE group at 12 and 24 h (P<0.05, P<0.01). Pathological changes in the pancreas and the lung tissue were alleviated in the SSBE group under light microscope. The injury degree ranged between that of the C group and the SAP group.

CONCLUSIONSSBE could relieve the ALl in SAP model rats, which could be achieved through alleviating inflammation responses of SAP rats.

Acute Lung Injury ; drug therapy ; etiology ; Animals ; Drugs, Chinese Herbal ; therapeutic use ; Interleukin-1 ; Interleukin-6 ; Lung ; Male ; Pancreas ; Pancreatitis ; complications ; drug therapy ; Peroxidase ; Rats ; Rats, Sprague-Dawley ; Sedum ; Taurocholic Acid ; Tumor Necrosis Factor-alpha

1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine ; analogs & derivatives ; pharmacology ; Animals ; Cardiomyopathy, Hypertrophic ; drug therapy ; metabolism ; Connexin 43 ; metabolism ; Disease Models, Animal ; Male ; Myocardium ; metabolism ; Rats ; Rats, Wistar

Objective:To investigate the expressions and clinical significances of SMO , STAT3 and MMP-9 in triple negative breast cancer ( TNBC) .Methods:The expressions of SMO , STAT3 and MMP-9 were immunohistochemically detected in 33 cases of TNBC, 30 cases of mammary hyperplasia and 18 cases of normal breast tissue , and the relationships among SMO , STAT3 and MMP-9 and clinicopathological parameters and prognosis of TNBC patients were analyzed .Results:In TNBC and mammary hyperplasia tissue , the positive expression rates of SMO were 90.9%and 60.0%,the positive expression rates of STAT3 were 96.9% and 73.3%, the positive expression rates of MMP-9 were 90.9% and 36.7%, respectively, however, expressions of them were completely absent in normal breast tissue .The significant correlations were observed between expressions of SMO , STAT3 and MMP-9 in TNBC, mammary hyperplasia and normal breast tissue (P<0.05).The expression of SMO and STAT3 was correlated with superior histologic grade and tumor stage .The expression of MMP-9 was correlated with metastasis of lymph node .The positive correlation was manifested between SMO and STAT3(r=0.361,P<0.05),between SMO and MMP-9 (r=0.633,P<0.01),between MMP-9 and STAT3 (r=0.803,P<0.01) in TNBC.The survival time of TNBC patients was correlated with SMO expression and pTNM (P<0.05).Conclusion:SMO, STAT3 and MMP-9 may play important roles in development of TNBC and may be an important therapeutic target in TNBC .

Objective:To establish the quality standard for Yunüjian granules. Methods:Rehmannia glutinosa, rhizoma anemar-rhenae and achyranthes in the granules were identified by TLC. The HPLC method was adopted. A SunfireTM C18 column (250 mm × 4. 6 mm, 5 μm) was used with the mobile phase consisting of acetonitrile-0. 1% acetic acid solution(16∶84) at the column tempera-ture of 30 ℃. The flow rate was 1. 0 ml·min-1 ,the detection wavelength was 334nm, and the imjection volume was 10 μl. Results:The TLC spots of verbascoside, and sarsasapogenin in rhizoma anemarrhenae and cyasterone in achyranthes were quite clear with good seperation. The linear range of verbascoside was within the range of 0.163-0.612 μg(r=0.999 9), and the average recovery was 101. 3%(RSD=2. 7%,n=6). Conclusion:The method is simple, reliable and accurate, and can be applied in the quality control of Ynnüjian granules.

Objective To evaluate the prognostic significance of carbonic anhydrase IX (CA IX) expression in patients with clear cell renal cell carcinoma (ccRCC). Methods CA IX expression in a cohort of 120 patients with ccRCC was evaluated by P-V immunohistochemistry with a rabbit CA IX polyclonal antibody. Twenty-five normal kidney tissues were used as a control. The relationship between CA IX expression and prognosis was analyzed by univariate and multiple-factor analysis (Cox regression model). The primary end point was cancer specific survival. Results One hundred and twelve (93.3%) patients were followed up with the median follow-up time of 45 months (range, 6 to 94 months). Seventy-five patients survived without evidence of tumor recurrence, 3 patients survived with tumor recurrence, and 34 patients died, 28 of the 34 died of cancer. CA IX expression was negative in all normal renal tissue. High CA IX expression was observed in 89 (74.2%) patients, among which 82 patients were followed up, and the disease free survival was 75.6% (62/82). Two (2.4%) patients survived with tumor recurrence, and 18 (22.0%) patients died, of which 13 (15.9%) died of cancer. Tumor recurrence and (or) metastasis occurred in 9 (11.0%) patients, with a median survival of 92 months in this high expression group. Low CA IX expression was observed in 31 (25.8%) patients, among which 30 patients were followed up, and the disease free survival was 43.3% (13/30). One (3.3%) patient survived with tumor recurrence, and 16 (53.3%) patients died, of which 15 (50.0%) died of cancer. Tumor recurrence and (or) metastasis occurred in 8 (26.7%) patients with a median survival of 53 months in this low expression group. Cancer specific survival between CA IX high expression group and low expression group was significantly different (P=0.000, χ2=15.950), and tumor relapse and (or) metastasis rates were significantly different (P=0.040, χ2=4.200). The 1, 3, 5 and 7 year cancer specific survival rates were 95.2%, 83.9%, 81.2% and 78.2% respectively in the high CA IX expression group, and 89.5%, 63.9%, 46.8% and 40.1% respectively in the low expression group. Multivariate analysis with Cox regression model showed that CA IX expression was a prognostic factor (RR=0.186). Conclusions High CA IX expression is negatively correlated with postoperative mortality, relapse and (or) metastasis in ccRCC. CA IX expression could be used as a prognostic biomarker in ccRCC.

Humans ; Homicide ; Forensic Pathology

BACKGROUND:With the deepening of bone tissue engineering research and bone metabolism understanding, it is a hotspot to analyze the blood supply and nutritional status of tissue-engineered bone.
OBJECTIVE:To compare different methods for evaluating smal vascular network distribution around the knee joint in rats in order to provide a guideline for the study of microvascular network in tissue-engineered bone.
METHODS:Eighteen Sprague-Dawley rats were randomly divided into three groups, with six rats in each group. Three commonly methods were used to evaluate the smal vascular network around the knee joint in rats:immunohistochemistry analysis, angiography analysis, and CT scans and reconstruction analysis.
RESULTS AND CONCLUSION:The microstructure of vascular network could be observed by immunohistochemistry, but the spatial distribution of vessels could not be evaluated. The spatial distribution of vessels could be showed by angiography and CT scans. However, some of micro vessels were showed unclearly by CT scans. The number of blood vessels detected by immunohistochemistry was (26.50±3.02) vessels, significantly higher than those detected by angiography and CT scans that were (14.12±1.47) and (9.00±1.79) vessels, respectively. Combination of immunohistochemistry and angiography can evaluate the microvascular network at microscopic and macroscopic levels, which can provide the whole information of the vascular network.

OBJECTIVE: To investigate the effect of placement of peripherally inserted central catheter (PICC) via the upper versus lower extremity veins in neonates through a Meta analysis. METHODS: CNKI, Wanfang Data, VIP Data, CBMdisc, PubMed, Web of Knowledge, Embase, Medline, Cochrane Library and Google Scholar were searched for control studies on the effect of PICC placement via the upper versus lower extremity veins in neonates. RevMan 5.3 was used to perform a Meta analysis of the studies which met the inclusion criteria. RESULTS: A total of 18 studies were included, among which there were 8 randomized controlled trials and 10 cohort studies, with 4 890 subjects in total. Compared with those undergoing PICC placement via the upper extremity veins, the neonates undergoing PICC placement via the lower extremity veins had significantly lower incidence rates of complications (RR=0.83, 95%CI: 0.75-0.92, P<0.05), catheter-related infections (RR=0.77, 95%CI: 0.60-0.99, P<0.05), catheter malposition (RR=0.28, 95%CI: 0.18-0.42, P<0.05), extravasation of the infusate (RR=0.52, 95%CI: 0.40-0.70, P<0.05), and unplanned extubation (RR=0.82, 95%CI: 0.69-0.98, P<0.05). They also had a significantly higher first-attempt success rate of puncture (RR=1.17, 95%CI: 1.05-1.30, P<0.05) and a significantly shorter PICC indwelling time (MD=-0.93, 95%CI: -1.26-0.60, P<0.05). CONCLUSIONS The above evidence shows that PICC placement via the lower extremity veins has a better effect than PICC placement via the upper extremity veins in neonates.
Catheterization, Central Venous ; Catheterization, Peripheral ; Cohort Studies ; Humans ; Infant, Newborn ; Lower Extremity ; Retrospective Studies

OBJECTIVETo evaluate the feasibility, safety and short-term efficacy of stent-assisted angioplasty and/or drug therapy for elderly patients with symptomatic vertebrobasilar insufficiency.

METHODSElderly patients (> or = 60 years old) with symptomatic vertebrobasilar stenosis (> or = 50%) demonstrated by cerebral angiography were treated with drug therapy and some with endovascular stenting further from April 2001 to June 2006. The clinical, imaging, intervention and follow-up data were collected and analyzed.

RESULTSEighty-one elderly patients were chosen for study, including 68 males and 13 females. The mean age is 70 years (60 - 87 years); stroke rate of 4.9% (4/81) and stroke-related mortality rate of 2.5% (2/81) were found in this group during hospitalization and follow-up (mean 28.1 months), and symptoms resolved or improved clinically in 66 (81.5%). Fifty-two balloon expandable stents were placed in 48 (59.3%) patients of this group with a technical success rate of 98.1% and the mean degree of stenosis was reduced from (82.4 +/- 13.1)% to (6.4 +/- 3.2)% (t = 22.4, P = 0.00).

CONCLUSIONSAppropriate management including endovascular stenting and/or drug therapy may improve short-term outcomes of elderly patients with symptomatic vertebrobasilar insufficiency; meanwhile, stent-assisted angioplasty is technically feasible and relatively safe.

Aged ; Aged, 80 and over ; Angioplasty, Balloon ; Anticoagulants ; therapeutic use ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Platelet Aggregation Inhibitors ; therapeutic use ; Prospective Studies ; Stents ; Treatment Outcome ; Vertebrobasilar Insufficiency ; drug therapy ; therapy