0.05).Conclusion MSCs could derive to cardiomyocyte-like cells after induction and incubation for 4 weeks in vitro,of which Ca~(2+)/CaMKⅡ is similar to the normal cardiomyocytes cells.

China ; Oral Medicine ; education

Animals ; Female ; Hypoxia ; prevention & control ; Ketamine ; pharmacology ; Male ; Mice ; Mice, Inbred Strains ; Selenium ; pharmacology ; Tea

Objective To investigate the relationship between the severity of diabetic retinopathy and serum bilirubin level. Methods From August 1 2008 to December 31 2009, hospitalized patients of 1062 cases with type 2 diabetes were divided into three groups according to fundus examination: no diabetic retinopathy (NDR) group (457 cases), non-proliferative diabetic retinopathy (NPDR) group (484 cases)and proliferative diabetic retinopathy (PDR) group ( 121 cases). The difference in serum bilirubin level was compared. Results Total bilirubin in PDR, NPDR and NDR group were (9.96 ± 3.84), ( 11.41 ± 3.82),( 13.38 ± 3.98) μ mol/L respectively. There was significant difference among three groups (P ＜ 0.01 ). Logistic multivariate regression analysis showed that a drop in serum total bilirubin level was an independent risk factor of diabetic retinopathy. Conclusions Bilirubin level and the severity of diabetic retinopathy have some relationship. The antioxidant bilirubin and anti-inflammatory effect should be paid attention to.

Objective To study the relationship between urinary albumin excretion rate(UAER)and cardiac structure and function in type 2 diabetes mellitus(T2DM).Methods Five hundred and twenty patients with T2DM were divided into three groups by 8 h UAER:normoalbuminuria group(424 cases),microalbuminuria group(75 cases)and macroalbuminuria group(21 cases).At the same time,50 healthy people were selected as control group.The cardiac structure and function in four groups were evaluated by echocardiographic measurements.Results Left atrial dimensio[(34.39±3.46)mm],left ventricular posterior wall thickness[(10.34±1.05)mm],relative wall thickness(0.46±0.05),interventricular septal thickness[(10.49±1.07)mm],left ventricular mass[(167.37±32.12)g],left ventricular mass index[(87.62±12.16)g/m2]in macroalbuminuria group were significantly higher than those in control group[(32.59±2.71)mm,(9.30±0.77)mm,0.42±0.04,(9.75±0.81)mm,(147.33±27.23)g,(80.14±13.81)g/m2](P＜0.05),mean while the ratio of E/A(0.82±0.19)in macroalbuminuria group was significantly lower than that in control group(1.21±0.16)(P＜0.05).Conclusions In T2DM patients with albuminuria,the cardiac structure and function have changed.With the increase of UAER,the impairments are more prominent.And it may predict diabetes cardiomyopathy.

BACKGROUND: Experimental proof for the efficacy, safety, and immunological assessment is needed when minocycline is used for root canal disinfection.OBJECTIVE: To investigate the effect of minocycline for root canal disinfection on levels of interleukin-17 in apical exudates of periapical periodontitis and periapical exudate volume.METHODS: Sixteen patients with acute periapical periodontitis (16 teeth) scheduled for root canal therapy were enrolled and randomly divided into calcium hydroxide and minocycline groups, respectively, followed by root canal disinfection.One week after disinfection, periapical index, periapical exudate volume and interleukin-17 level were detected prior to the root canal filling. Another 16 patients with normal pulp vitality (16 teeth) scheduled for single root canal filling were enrolled as control group, in which periapical index, periapical exudate volume and interleukin-17 level were detected.RESULTS AND CONCLUSION: The periapical exudate volume and interleukin-17 level in the calcium hydroxide and minocycline groups were significantly higher than those in the control group (P < 0.05). The periapical index and interleukin-17 level in the calcium hydroxide and minocycline groups were decreased significantly at 1 week after root canal disinfection (P < 0.05), while there was no difference between these two experimental groups in the periapical index, periapical exudate volume and interleukin-17 level. To conclude, the use of minocycline significantly reduces interleukin-17 level and periapical exudate volume, and thus achieves effective outcomes in periapical disease.

Objective To investigate the type 2 diabetic patients with glomerular filtration rate and urinary albumin value as renal finction evaluation.Methods A total of 1217 patients with type 2 diabetic nephropathy from August 1,2010 to June 31,2012 were selected.Evaluated glomerular filtration rate (eGFR) was calculated according to the currently recommended simplified modification of diet in renal disease study (MDRD) formula.According to the K/DOQI guidelines for chronic kidney disease,patients were divided into three groups:group A [eGFR ≥90 ml/ (min ·1.73 m2)] of 891 cases,group B [60 ml/(min· 1.73 m2) ≤eGFR ＜ 90 ml/(min· 1.73 m2)] of 256 cases,group C[eGFR ＜ 60 ml/(min· 1.73 m2)]of 70 cases,respectively.Eight-hour urinary albumin excretion rate (UAER) was compared between and among the groups; according to 8-hour UAER,patients were divided into three groups:group a (8-hour UAER ＜20 μg/min) of 946 cases,group b (20 μg/min≤8-hour UAER ＜200 μg/min) of 193 cases,group c(8-hour UAER ≥ 200 μ g/min) of 78 cases.eGFR was calculated and compared between and among the groups.Results Eight-hour UAER was (32.71 + 79.62),(57.56 + 130.59),(107.50 + 222.64) μ g/min in group A,B,C,and the difference among three groups was statistically significant (P＜0.05).eGFR was (110.78 ±32.75),(108.26 ±45.78),(94.96 ±32.30) ml/ (min ·1.73 m2) in group a,b,c,and the difference between group a and group c,or between group b and group c was statistically significant (P ＜0.05),but the difference between group a and group b was not statistically significant (P ＞0.05).Conclusion When evaluating the function of type 2 diabetic nephropathy,two indicators should be considered:glomerular filtration rate and urinary albumin.

A fusion protein of glucagons-like peptide-1 and human serum albumin (GLP-1/HSA) was expressed and secreted into the fermentation broth with recombinant Pichia pastoris. The productivity of expressed GLP-1/HSA could reach 63.6mg/L in 10L fermentor. After concentrated with hollow-fiber ultrafiltration membrane, GLP-1/HSA was purified from fermentation broth by hydrophobic chromatography, negative ion exchange chromatography and gel filtration chromatography in turn. The HPLC analysis showed that the purified GLP-1/HSA had an overall purity of 95.8%. Furthermore, the analysis of in vivo activity indicated that GLP-1/HSA had the bioactivity of native GLP-1, and could significantly reduce blood glucose level 4h after intraperitoneal administration. It was concluded that a great deal of GLP-1/HSA with higher purity could be harvested by Pichia pastoris expression system and the established purification methods. Preliminary studies show a new potential for developing the long-acting GLP-1 analogs for clinical applications.

Objective To explore the practical ways on establishing fine course of oral and maxillofacial surgery effectively. Methods Relying on the advantages of the discipline,great efforts had been made in step-by-step enhancement of the quality of teachers,teaching contents,teaching methods and administration. Results Through the establishing of fine course,we could improve the curriculum system,enhance the force of education team,and improve the quality of education. Conclusion Establishing fine course of oral and maxillofacial surgery depends on the environment of sharing educational resources,adjusting the curriculum system and establishing an excellent educational team.

Objective To study antimicrobial resistance and genotyping of methicillin-resistant Staphylococcus au-reus(MRSA). Methods A total of 967 no-repetitive strains of Staphylococcus aureus(S.aureus)isolated from a hospital between January 2014 and November 2015 were collected,antimicrobial susceptibility testing,mecA gene,and Panton-Valentine leukocidin gene(PVL gene)were detected;staphylococcal cassette chromosome mec(SCCmec)typing,multilocus sequence typing(MLST),S.aureus protein A(spa)gene typing,and S.aureus ac-cessory gene regulator(agr)typing were performed with multiplex polymerase chain reaction. Results Of 967 strains of S.aureus,210(21.72%)were MRSA;detection rate of MRSA from sputum specimen was higher than that of skin and soft tissue specimen(68.09% vs 1 1.83% ,P<0.05);vancomycin- and linezolid-resistant S.aureus strains were not found,susceptibility rates of MRSA to gentamicin,tetracycline,erythromycin,clindamycin,levo-floxacin,ciprofloxacin,moxifloxacin,nitrofurantoin,and rifampicin were all lower than those of methicillin-sensi-tive Staphylococcus aureus(MSSA),differences were all statistically significant(all P<0.05);antimicrobial sus-ceptibility rate of MRSA to compound sulfamethoxazole was higher than MSSA,difference was significant(P<0.05). Susceptibility rates of MRSA isolated from skin and soft tissue to gentamicin,levofloxacin,ciprofloxacin,moxifloxacin,and rifampicin were 86.90% -95.24%,while MRSA isolated from sputum were only 1.56% -15.63%.Of 967 strains of S.aureus,210 harbored mecA gene,10 harbored PVL gene,8(3.81%)of 210 MRSA strains weren't typed. The main types of MLST,SCCmec,spa,and agr were ST 239(n= 177 strains),type Ⅲ(n= 177 strains),t 030(n= 177 strains),and typeⅠ(n= 196 strains)respectively.Conclusion The main epidemic clone of MRSA strain in this hospital is ST239-MRSA-SCCmec III-t030,antimicrobial resistance is serious,monitoring on drug-resistant strains in hospital should be strengthened.