Objective To evaluate the clinical application of superselective renal artery embolization in the treatment of iatrogenic renal hemorrhage. Methods The iatrogenic renal hemorrhage in fifteen patients was first demonstrated by renal arterigraphy to diagnose the rupture site and degree of injury. And then they were treated by percutaneous catheterized superselective renal arterial embolization through guidance of guide wire. Results In all 15 patients, the occlusive ruption of bleeding arteries and disappearance of extravasation staining were found after the superselective catheterized renal arterial embolization. Clinically, the bloody urine turned clear without macroscopic hematuria during 1-3 days in all patients after the procedure. Conclusions Superseclective renal arterial embolization treatment signified a less invasion, less complications, good hemostatic efficacy, and maximal preservation of renal tissue and function for iatrogenic renal hemorrhage. The treatment is worthy to be recommended.

Hyperuricemia and metabolic syndrome were studied in 17 762 subjects of Tianjin Municipality from July 2007 to July 2009. The overall prevalence rate of hyperuricemia was 12. 16% (2160cases) , the rate in males was significantly higher than that in females (15. 71% vs. 6. 51% , P <0. 01).The overall prevalence rate of metabolic syndrome was 25. 56% (4540 cases) , the rate in males was also higher than that in females (28. 17% vs. 21. 40% , P <0. 01). Binary logistic regression analysis disclosed that females with high uric acid were twice likely to suffer from metabolic syndrome than males; and female ≤ 44 years with hyperuricemia had the highest odd ratio for metabolic syndrome.

[ ABSTRACT] AIM:To establish an animal model of rheumatoid arthritis ( RA) in DBA/1 mice induced by im-munodominant mixed peptides derived from glucose-6-phosphate isomerase (GPI).METHODS: The DBA/1 mice were immunized with emulsified mixed peptide fragments of hGPI 325-339+hGPI469-483 or single peptide hGPI325-339 in com-plete Freund′s adjuvant by subcutaneous injection to induce the model of RA .Body weight , ankle joint symptom scores , the pathological change of the ankle joint , the levels of CD4 +T cells in the spleen and peripheral blood , the proportion of iNKT cells in the peripheral blood , and the levels of TNF-αand IL-6 in serum were detected to evaluate and analyze the model.RESULTS:The hind paw of the model mice appeared red swelling on the 8th day, and then aggravated gradually to the limbs.The red swelling reached peak on the 14th day, and then relieved gradually .Inflammation response dominated by lymphocytes and monocytes was observed in the ankle joint .The inflammatory effect of mixed peptides was more obvious than that of the single one (P<0.05).Compared with control group and the mice treated with single peptide , the weight gain was slow, the amount of CD4 +T cells in the peripheral blood and spleen were increased , the proportion of peripheral iNKT cells in the inflammatory peak was decreased (P<0.05), and the serum level of TNF-αwas increased significantly ( P<0.05) in the mice treated with mixed peptide fragments .CONCLUSION: The immunological characteristics of RA model induced by mixed GPI peptides in DBA/1 mice is closer to that in RA patients , especially in the immunopathology of iNKT cells.Therefore, this model can be used as a new tool for studying the mechanism and immunological intervention of RA.

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 Docetaxel is commonly used in chemotherapy for patients with mucoepidermoid carcinoma (MEC) in the salivary gland after operation,but it cannot kill all residual tumor cells and prevent recurrence.Cancer stem cells (CSCs) may be responsible for tumor recurrence and drug resistance.Based on the theory of CSCs,the authors investigated the effects of docetaxel on cancer stem cell-like cells in the MEC cell line MC3.Methods MC3 cells in the logarithmic growth phase were divided into a negative control and a docetaxel (40 ng/mL) group.The colony formation rate of the MC3 cells was calculated with the soft agar cloning technique,the growth of the cells detected by MTT assay,the protein and mRNA expressions of CD44 and Oct4 determined by immunocytochemistry and flow cytometry,and tumorigenicity observed by nude mouse tumorigenicity assay.Results Compared with the negative control group,the MC3 cells treated with docetaxel exhibited significant increases in the colony formation rate ([9.14±0.75] vs [33.47±1.30]％,P＜0.05),the protein expressions of CD44 (14.47±0.15 vs 99.50±0.30,P＜0.05) and Oct4 (1.37±0.06 vs 14.60±0.36,P＜0.05),and the mRNA expressions of CD44 (0.207±0.009 vs 0.651±0.015,P＜0.05) and Oct4 (0.223±0.008 vs 2.228±0.005,P＜0.05).At 2 months after injection of 1×103,1× 104,and 1×105 MC3 cells,tumor formation was observed in 0,1,and 3 of the nude mice,respectively,but not in the negative control group.Conclusion MC3 cells surviving docetaxel treatment have the properties of stem cells,and docetaxel can enrich cancer stem cells in the MC3 cells,which plays a key role in tumor recurrence.

Objective To study the change of vascular endothelial growth factor(VEGF) in myocardial tissue and serum of myocardial ischemia in rats.Methods Twenty SD rats were randomly divided into normal control group and test group. Test group was ligated coronary artery,and the control group was pulled on line but not ligated,then observed the change of VEGF.The histological and immunohistochemical method were used for observing the change of VEGF serum in myocardial ischemia in rats' heart.VEGF levels were measured by image analysis.Results Compared with control group,the expression of VEGF in the myocardial ischemia group was increased obviously(P

OBJECTIVETo investigate the factors of long-turn survival of liver cancer after surgical treatment.

METHODSFive hundred and twenty-two cases of liver cancer that received surgical treatment in 14 years were analyzed retrospectively.

RESULTSComparison between the small liver cancer (< 5 cm) and the greater one (> 10 cm) revealed that the small liver cancer had a higher survival rates than the greater one [3 year (61.25 +/- 4.41)% versus (45.90 +/- 6.98)%; 5 year (53.84 +/- 5.68)% versus (30.21 +/- 10.23)%]. There were same results between single-nodule and two or more than two nodule [3 year (61.86 +/- 3.69)% versus (38.31 +/- 4.97)%; 5 year (55.40 +/- 4.91)% versus (28.01 +/- 6.31)%], between child I and child II or more than II [3 year (60.68 +/- 3.68)% versus (49.88 +/- 4.13)%; 5 year (50.99 +/- 5.10)% versus (36.39 +/- 7.58)%], and between single segmentectomy of the liver and two or more than two segmentectomy [3 year (68.65 +/- 4.95)% versus (49.88 +/- 4.13)%; 5 year (65.38 +/- 5.69)% versus (37.98 +/- 5.70)%].

CONCLUSIONSSmall liver cancer, single-nodule, good hepatic function and minor resection were important factors to prolong survival further.

Adolescent ; Adult ; Aged ; Child ; Female ; Follow-Up Studies ; Hepatectomy ; methods ; Humans ; Liver Neoplasms ; mortality ; surgery ; Male ; Middle Aged ; Retrospective Studies ; Survival Rate

Adult ; Aged ; Antigens, CD ; biosynthesis ; genetics ; B7-H1 Antigen ; CD28 Antigens ; biosynthesis ; genetics ; Female ; Hepatitis B, Chronic ; immunology ; Humans ; Leukocytes, Mononuclear ; immunology ; Male ; Middle Aged

BACKGROUND: Long-term excessive intake of fluoride, especially through drinking water, can cause chronic fluorosis of bone. The disease can lead to bone damage and deformity, and is difficult to recover.Unfortunately, we have not developed a noninvasive or minimally invasive method for its early diagnosis. OBJECTIVE: To observe the expression of apoptosis-related miRNAs under the action of excessive fluorine in human osteoblasts. METHODS: The fluorine model was established in the human osteoblasts by cultured with 20 and 40 mg/L sodium fluoride for 24 and 48 hours, respectively. The expression levels of apoptosis-related miRNAs were determined by PCR array. RESULTS AND CONCLUSION: After 24-hour treatment of sodium fluoride, 48 kinds of miRNAs were upregulated and 4 ones were down-regulated in the osteoblasts. After 48-hour treatment of sodium fluoride, 21 kinds of miRNAs were upregulated and 2 ones were down-regulated. It showed that nine up-regulated miRNAs and one down-regulated miRNA were same in two periods. The 10 miRNAs are selected for target gene analysis on bioinformatics software that refer to the effect of anti-apoptosis and pro-apoptosis, which is of great significance for the early identification of skeletal fluorosis.

accumulation and endothelial dysfunction are associated with insulin resistance.