Objective: To explore the therapeutic effect of Onyx (an embolic agent) in the embolization of intracranial aneurysms. Methods: 16 patients with intracranial aneurysms were treated endovascularly, 5 patients with small aneurysms (2 with a narrow-neck, 3 with a wide-neck), and 11 patients with large or giant intracranial aneurysms (all with wide-neck). One patient with large aneurysm recanalized after coiling, and was retreated with Onyx, and the remaining 15 patients were treated with Onyx only. The follow-up time was 6 months to 2 years by letters or digital subtraction angiography (DSA) after the procedures. Results: All the 5 small aneurysms were 100% occluded; of 11 large or giant aneurysms, 7 aneurysms were 100% occluded and 4 aneurysms were 95% occluded. All their parent arteries remained patent. Three patients had procedure-related complications: 1 patient had ipsilateral intracerebral hematoma immediately after the procedure; and 1 patient with the internal carotid-cavernous sinus aneurysm whose oculomotor paralysis worsened after the procedure; another with internal carotid-posterior communicating artery aneurysm had contralateral hemiparesis. The procedure-related morbidity and mortality were 12% and 6%, respectively. Six patients were followed up by DSA, 2 small aneurysms and 1 large aneurysm did not recur, 3 giant aneurysms recurred. The 9 remaining patients were followed-up by letters. Eight patients no new symptom occurred and one died of unknown cause. Conclusion: Both short- and long-term efficacy of Onyx for small wide-necked aneurysms is good, and the short-term efficacy for large and giant wide-necked aneurysms is satisfactory.

Objective To investigate the levels of estrogen,progesterone,follicle-stimulating hormone (FSH),and luteinizing hormone (LH) in serum and the expression of ER,PR,FSH receptor (FSHR),and LH receptor (LHR) in thyroid tissues of patients with different types of thyroid nodules.Methods Serum levels of estrogen,progesterone,FSH,and LH were measured by chemiluminescence and expression of ER,PR,FSHR,and LHR in thyroid tissue was detected by immunohistochemistry in female patients with thyroid adenoma (n＝97),nodular goiter (n＝103),thyroid papillary cancer (n＝208),poorly differentiated thyroid carcinoma (n＝17),or undifferentiated thyroid carcinoma (n＝10) and in normal controls (n＝60) from Dec.2009 to Dec.2014 in Department of Thyroid Surgery of the First Hospital of Jilin University.Results The positive rates of serum estrogen level and ER expression were significantly greater in patients with various types of thyroid nodules than in normal controls.The positive rates of ER expression were significantly lower in various types of thyroid nodules than in normal thyroid tissues,especially in poorly differentiated carcinoma and undifferentiated carcinoma.The negative rates of serum progesterone level and positive rates of PR expression in thyroid tissue were significantly greater in patients with thyroid adenoma,nodular goiter,or thyroid papillary cancer than in normal controls.The positive rates of serum FSH and LH levels and FSHR and LHR expression were significantly greater in the thyroid adenoma group than in other groups.Conclusions The occurance of thyroid nodules might be related to sex hormone.The combined detection of serum levels of sex hormones and expression of their receptors allows for a differential diagnosis and evaluation of the degree of differentiation among various types of thyroid nodules.

As one of the serious complications of diabetes, diabetic retinopathy( DR) has become a main eye disease which causes blindness. The occurrence and development of DR is related to many factors. The pathogenesis is complicated, and the mechanism has not been clear. Early data suggest that the occurrence and development of DR has relations with many factors such as blood sugar level, diabetes duration and the environment. Among the factors, mitochondrial dysfunction and oxidative stress is the important mechanisms of DR and has become research focus in recent years. Consequences of mitochondrial dysfunction within cells include elevation of the rate of reactive oxygen species( ROS) production due to damage of electron transport chain proteins, mitochondrial DNA ( mtDNA ) damage, and loss of metabolic capacity. Clear understanding on the mechanism of mitochondrial functional change under high sugar level and oxidative stress response in the occurrence and development of DR is of great significance on prevention and cure of DR. ln this article, the development of mitochondrial metabolism and oxidative stress of DR is reviewed.

OBJECTIVETo investigate the therapeutic effects of peptide YY against hepatic fibrosis in rats and explore the possible mechanism.

METHODRat models of hepatic fibrosis were established with a subcutaneous injection of carbon tetrachloride and randomized into normal control group, model group, peptide YY (PYY)-treated group, octreotide-treated group, and interferon gamma-treated group. Serum levels of the hepatic function indices and hepatic fibrotic index were detected, and the hepatic fibrosis grade was assessed using HE staining. The expression of transforming growth factor beta1 (TGFbeta1) were determined with immunohistochemical staining method.

RESULTSThe rats in PYY-treated group showed significantly different serum levels of TBIL, HA and LN from the rats in the model group (P<0.05). PYY significantly reduced hepatic fibrosis scores and lowered TGFbeta1 expression as compared with the model group.

CONCLUSIONSPYY can down-regulate TGFbeta1 expression to inhibit the development of hepatic fibrosis with comparable efficacy with interferon gamma and octreotide.

Animals ; Carbon Tetrachloride ; Immunohistochemistry ; Liver Cirrhosis, Experimental ; chemically induced ; drug therapy ; metabolism ; Male ; Peptide YY ; therapeutic use ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Transforming Growth Factor beta1 ; biosynthesis

Objective:To explore the effect of sarpogrelate on platelet function in patients at the bridging stage before coronary artery bypass grafting (CABG).
Methods: A total of 40 consecutive patients with peripheral artery stent and scheduled for CABG in our hospital from 2011-05 to 2013-04 were enrolled in this study. The patients were randomly divided into 2 groups, Low molecular weight heparin (LMWH) alone group, n=19 and Sarpogrelate+LMWH group, n=21. The medications started at 5-7 days before CABG and stopped at 24 h before CABG. The platelet inhibition rates (platelet aggregation induced by collagen+ serotonin) were examined and compared between 2 groups at the baseline (before randomization), 24h and 1h before CABG respectively.
Results: The platelet inhibition rates were similar between 2 groups at the baseline (87.33 ± 6.82) % vs (86.11 ± 6.87) %, P=0.577 and 1h before CABG (62.60 ± 12.39) % vs (56.19 ± 14.99) %, P=0.148. At 24h before CABG, the platelet inhibition rate in Sarpogrelate+LMWH group was higher than that in LMWH alone group (83.87 ± 8.99)%vs (63.13 ± 10.88)%, P<0.001. Compared with the baseline, the falling range of platelet inhibition was lower in Sarpogrelate+ LMWH group at 24h before CABG, (3.46 ± 6.18) % vs (22.98 ± 9.43) %, P<0.001 and the falling range was similar between 2 groups at 1h before CABG (24.73 ± 14.19)%vs (29.92 ± 14.28)%, P=0.257.
Conclusion: Sarpogrelate + LMWH may result better platelet inhibition rate with quicker recovery of platelet function upon the medication stopping, which might be a feasible management in patients at the bridging stage before CABG.

Background:As the empirical studies on human body are restricted extremely,the establishment and selection of suitable animal models are important for researches on ulcerative colitis( UC ). Aims:To compare the symptoms and colonic pathology of rat models with experimental colitis induced by dextran sulfate sodium( DSS ) and trinitrobenzene sulfonic acid( TNBS),so as to provide a reference for selecting animal models in UC-related studies. Methods:Drinking 4% DSS freely for 7 days or intrarectal administration of single dose 100 mg/kg TNBS-50% ethanol were used to establish experimental colitis model in Sprague-Dawley rats. The disease activity index( DAI)was assessed dynamically during the course of experiment. The whole colon was removed in batches for measurements of colonic damage score and activity of myeloperoxidase(MPO)at different time points. Results:The DAI score reached the peak at the 7th day and the 2nd day in DSS group and TNBS group,respectively,and decreased gradually afterwards. Six and one deaths occurred during the experimental course in DSS and TNBS groups,respectively. In DSS group,the duration of inflammation was short,the colonic injury was moderate and recovered after drug withdrawal. At the 18th day,the colonic damage score and MPO activity was 0. 25 ± 0. 50 and(0. 80 ± 0. 33)U/g,respectively,and no significant differences were seen between DSS group and normal control group. In TNBS group,the duration of inflammation was longer and the colonic injury was more severe. At the 21st day,the colonic damage score and MPO activity was 3. 60 ± 0. 55 and( 1. 60 ± 0. 39 ) U/g, respectively,and chronic inflammation was observed histologically. Conclusions:Both DSS and TNBS can induce experimental colitis model in rats. The course of TNBS-induced colitis model presents a transformation of acute to chronic inflammation,and may be more suitable for treatment-related studies of UC.

[ ABSTRACT] AIM:To explore the effect of dexmedetomidine ( DEX) on the CCAAT/enhancer-binding protein-homologous protein ( CHOP) pathway during lung ischemia-reperfusion ( I/R) in mice.METHODS:C57BL/6J male mice were randomly divided into sham operation group ( sham group) , lung ischemia/reperfusion group ( I/R group) , ischemia/reperfusion +normal saline group ( I/R+NS group ) and ischemia/reperfusion+dexmedetomidine group ( I/R+DEX group) .Dexmedetomidine was infused intraperitoneally with 25 μg/kg for 30 min prior to the ischemia period in I/R+DEX group, the normal saline was administrated with the same volume of dexmedetomidine in I/R+NS group.After fini-shed the 3 h-reperfusion period , the left lung tissues were harvested to determine lung wet/dry weight ( W/D) , the total lung water content ( TLW) , and index of quantitative evaluation for alveolar damage ( IQA) .Morphological observation and terminal-deoxynucleotidyl transferase mediated nick end labeling ( TUNEL) were applied to evaluate the structure changes and the apoptosis index (AI) of the lung tissues.The expression of CHOP and glucose-regulated protein 78 (GRP78) at mRNA and protein levels in the lung tissues was detected by Western blot and RT-PCR.RESULTS:Compared with sham group, the W/D, TLW, IQA, AI, the mRNA and protein expression of CHOP and GRP78 obviously increased, and the left lung tissues structure were damaged more obviously both in I/R group and I/R+NS group.Compared with I/R group, the W/D, TLW, IQA, AI and the protein and mRNA expression of CHOP in I/R+DEX group decreased, the injury of the left lung tissue structures induced by I/R in I/R+DEX group were also alleviated .CONCLUSION:DEX alleviates the
lung I/R injury, which may be related to inhibition of apoptosis mediated by CHOP pathway.

OBJECTIVETo investigate and clarify the key surgical techniques and evaluate clinical effectiveness of modular cementless femoral stems(LINK MP modular stem) in complex revision hip arthroplasty.

METHODSFrom January 2002 to December 2013, 470 patients in Chinese PLA General Hospital received revision hip arthroplasties using MP stems. Among them, 246 patients were followed for an average of 5.7 years (ranged, 0.5 to 11 years). There were 148 males and 98 females, with an average age of 62.5 years old (ranged from 26 to 83 years old). The most common reason for revision was aseptic loosening of femoral stems (107 cases, 43.5%), followed by prosthetic joint infection (104 cases, 42.3%). Other reasons included unexplained hip or thigh pain, periprosthetic femoral fracture, prosthesis wear and dislocation. According to Paprosky classification of femoral deficiency, there were 171 cases of type IIIA (69.5%), 14 cases of type I, 39 cases of type II, and 22 cases of type IIIB. The average preoperative Harris hip score (HHS) was 37.4 ± 7.5. In addition, radiographic presentation, degree of patients' subjective satisfaction, and clinical effectiveness were assessed as well.

RESULTSThe average Harris score was im- proved to 87.8 ± 4.2 after operation,with significant statistical difference when compared to preoperative score (t = 92.13,P = 0.00). Analysis of patients' subjective satisfaction for leg length discrepancy, stability and overall degree of satisfaction showed that the number of patients with great satisfaction were 27, 60, 61 respectively. The most common complication was the periprosthetic fracture (intraoperatively 21 cases and postoperatively 8 cases). Other complications included infection (7 cases), dislocation (5 cases), numbness possibly caused by incomplete sciatic nerve injury (6 cases) and thigh swelling (3 cases). The X-ray taken at the final follow-up revealed that prosthesis subsidence occurred in 4 cases, 2 of which needed a second revision.

CONCLUSIONThe application of modular cementless femoral stems (LINK MP modular stem) in complex revision hip arthroplasty (especially in cases with the serious defect of proximal femoral bone) shows good results at both the short-term and long-term follow-up, especially in the revision for prosthetic infection with the high success rate. In order to avoid complications and improve clinical outcomes,the surgeons should carefully select proper surgery candidates,perform the procedure with care, and master the key surgical techniques.

Adult ; Aged ; Aged, 80 and over ; Arthroplasty, Replacement, Hip ; adverse effects ; methods ; Female ; Hip Prosthesis ; Humans ; Male ; Middle Aged ; Patient Satisfaction ; Postoperative Complications ; therapy

In this paper, the number of rhizosphere and non-rhizosphere microbial organisms of fusarium wilt resistant and susceptible watermelon under soil culture and soilless substrate culture was studied by traditional culture methods. The results showed that, the number of rhizoshpere microorganisms was significantly higher than non-rhizosphere, and the number was changed with the stage of watermelon grow, the number was the lowest in seedling stage and increased with the watermelon grow, and achieved highest at the flowering and fruiting stage, decreased with the watermelon ageing. The fusarium wilt resistant of watermelon was correspondence with number of rhizosphere bacteria; the number of rhizosphere bacteria of resistant watermelon was higher than that of susceptible watermelon in each stage under soil culture and soilless culture. The fusarium wilt resistant of watermelon is no correspondence with number of rhizosphere fungi and actinomycete. The number of non-rhizosphere microbial organisms was changed in a small range in the whole growing stage. The non-rhizosphere bacteria have no significant change in the whole stage under soil culture and increased quickly under soilless substrate culture and decreased at the later stage. The non-rhizosphere fungi and actinomycete reached highest at the later stage under soil culture or soilless sub-strate culture.

The ergosterols were produced from corn straw hydrolysates fermented by ergosterol yeast,which was obtained from protoplast electrofusion.The effects on the yield of ergosterol were studied in the condition of shaker,such as initial sugar concentration,nitrogen source,pH value and fermentation time.The technical conditions were optimized according to the DPS center-united experimental design principles and the method of response surface analysis with four factors and three levels.The results indicated that the four factors had significant correlation to ergosterol accumulation.The biomass and the ergosterol content could be up to 8.67g/L and 2.37% respectively after cultivated for 32h under optimal technical condition.The structure of ergosterol crystal was characterized by UV,IR and SEM.A new approach of biomass source application was presented.