Fibroblast growth factor 23 (FGF23) is a new endocrine factor, mainly expressed in osteoblasts and osteoblasts. Many studies have found that FGF23 can act on kidney, parathyroid and other tissues after binding with Klotho protein, and participate in bone mineral metabolism. In addition, in recent years, the role of FGF23 in exoskeleton has been gradually discovered, such as FGF23 and thyroid diseases, diabetes and so on. Therefore, understanding the biological characteristics, regulatory mechanism of FGF23 and its relationship with related diseases is of great clinical significance for the diagnosis and treatment of diseases. This article reviews the relationship between FGF23 and metabolic diseases such as phosphorus metabolic disease, parathyroid disease, hyperthyroidism, osteoporosis, diabetes, iron metabolism and so on.

Objective To evaluate the value of two-dimensional strain imaging in assessing right ventricular function of recipient fetus in TTTS pregnancies.Methods Sixteen TTTS pregnancies and 19 normal monochorionic diamniotic pregnancies(controls) were included.Doppler studies of the umbilical artery,umbilical vein,ductus venosus,middle cerebral artery,atrioventricular valve and semilunar value were recorded in both fetus,and myocardial performance index of both ventricles was calculated.Longitudinal peak systolic strain of right ventricular were calculated and compared between recipient fetus and other fetus.Results Cardiothoracic ratio and myocardial performance index of right ventricular showed significant differences between recipient fetus and controls.Right ventricular strain was decreased in recipient fetus compared with controls.Conclusions Two-dimensional strain imaging can be used to evaluate right ventricular myocardial function in the recipient fetus of TTTS.

Objective To investigate the different expressions of adiponectin receptor 2(AdipoR2) mRNA in liver between diet-induced obese rats and controls.Methods The level of AdipoR2 mRNA expression was detected by reverse transcriptase polymerase chain reaction(RT-PCR).Insulin sensitivity was evaluated by insulin sensitivity index(ISI).Results Diet-induced obese rats showed higher expression of AdipoR2 mRNA compare to controls.The ISI of diet-induced obese rats was lower than that of controls.Conclusion High energy diet induceds AdipoR2 expression in liver.

Background Age-related cataract is one of the common causes of blindness.Although the pathophysiology of age-related cataract is far from clearly understood,it is well accepted that DNA damage plays an important role in the disease pathogenesis.Objective The purpose of this study was to quantitatively evaluate the DNA damage in peripheral lymphocytes of age-related cataract.Methods A cross-sectional study was carried out.This study complied Declaration of Helsinki and approved by Ethic Committee of Affiliated Hospital of Nantong University.Written informed consent was obtained from each subject.Two hundred and eleven patients with agerelated cataract and 147 normal subjects were enrolled from a “ Jiangsu Eye Study:Funing 2011 Eye Disease Epidemic Survey”.All the subjects aged from 50 through 80 years with matched age and gender between the two groups.The percentage of tail DNA and Olive tail moment (OTM) were detected by comet assay to assess the extent of DNA damage in peripheral lymphocytes.Statistical analyses were performed with SPSS 17.0 software,and the differences of the percentage of tail DNA and OTM were compared between the age-related cataract group and normal control group by independent sample t test as well as among the 50-59 years group,60-69 years group and ≥70 years group by one-way analysis of variance.Results Comet assay showed a round lymph cell with the clear border in the normal group;while in the age-related cataract group,the cell was bigger with a comet-like tail.The percentage of tail DNA and OTM in peripheral lymphocytes were (21.75 ± 3.51) ％ and 6.54 ± 1.65 in the age-related cataract group,and those in the normal control group were (9.31 ±3.60)％ and 2.18 ± 1.10,respectively,with significant differences between them (t =32.67,P =0.00 ; t =28.02,P =O.00).In the 50-59 years subgroup of the age-related cataract group,the percentage of tail DNA and OTM in peripheral lymphocytes were (20.04±2.86) ％ and 5.92± 1.14,and in the 60-69 years subgroup of the age-related cataract group,the percentage of tail DNA and OTM in peripheral lymphocytes were (20.77 ±2.93) ％ and 6.13 ± 1.14,which were significantly reduced in comparison with (22.79 ± 3.67)％ and 6.95±1.91 of the ≥70years subgroup(TailDNA％:q=2.75,P=0.00; q=2.02,P=0.00;OTM:q=1.03,P =0.02 ; q =0.82,P =0.00).Conclusions The pathogenesis and development of age-related cataract probably is associated with DNA damage.

Objective To observe the protective and anti-apoptosis effects of Rannasangpei (RNSP) on brain ischemia and reperfusion injury in rats. Methods Middle cerebral artery occlusion (MCAO) model was established and the groups were divided as sham group, MCAO group, vehicle + MCAO group and RNSP + MCAO group. Neuronal deficient signs, brain infarct area, the ratio of Bcl-2/Bax and the expression of caspase-3 were evaluated by neuronal deficient score, TTC (2,3,5-Triphenyltetrazolium chloride) staining and Western blot respectively. Results Compared with those parameters in sham group, the neuronal deficient signs, infarct area and caspase-3 expression increased evidently while the ratio of Bcl-2/Bax decreased markedly in MCAO group. But in RNSP+MCAO group, the neuronal deficient signs, infarct area and cas?pase-3 expression decreased greatly while the ratio of Bcl-2/Bax increased markedly compared with those parameters in MCAO group. Conclusion RNSP may have protective effects on brain ischemia and reperfusion, which is related to its an?ti-apoptosis role indicated by upregulation of Bcl-2/Bax ratios and downregulation of caspase-3.

Background Study determined that retinitis pigmentosa has a similar pathogenesis mechanism to Alzheimer disease,and activity of cyclin-dependent kinase 5 (Cdk5) and its activators participates in the degeneration of central nervous system.Roscovitine,an inhibitor of Cdk5,can suppress activity of Cdk5/p25 pathway and therefore inhibit cell apoptosis.However,the influence of roscovitine on retinitis pigmentosa(RP) is unclear.Objective This study was to investigate the expressions of p35,p25 and tau in the retinas of RCS rats.Methods Roscovitine of 4 μl was intravitreally injected in the right eyes of 12 SPF 17-day-old RCS rats,and the fellow eyes were not intervened as the control eyes.The rats were sacrificed on eighth day (postnatal 25 days) and eighteenth day (postnatal 35 days),and whole retinas were isolated to evaluate the relative expressions of Cdk5,p35,p25 and tau phosphorylation by Western blot,and the activity of Cdk5/p25 was analyzed by quantitative colorimetric assay.The results were compared between the right eyes and fellow eyes by paired t test.The use and care of the rats complied with Ethic Statement of Experimental Animal of Ningxia Medical University.Results In the eighth and eighteenth day after injection,the relative expression values (A values) of p35 in rat retinas were 1.186±0.019 and 1.069± 0.019 in the injected eyes,showing significant decreases in comparison with 1.364±0.016 and 1.214±0.008 of the fellow eyes (t =-6.294,-6.477,both at P＜0.05);the relative expression values (A values) of p25 in rat retinas were 0.312±0.009 and 0.269±0.018 in the injected eyes,which was significantly lower than 0.595±0.013 and 0.473±0.011 of the fellow eyes (t=-36.508,-11.879,both at P＜0.05).No significant difference was found in the relative expression of Cdk5 protein between the injected eyes and the fellow eyes in various time points after injection (both at P＞0.05).The activities of Cdk5/p25 were (0.003 83 ±0.000 14) mol/(s · mg) and (0.002 01 ± 0.000 11) mol/(s · mg) in the injected eyes,with significant decreases in comparison with the (0.005 47±0.000 27)mol/(s · mg)and (0.003 35±0.000 15) mol/(s · mg) of the fellow eyes (t=-9.152,P=0.000;t=-9.248,P=0.000),and the tau phosphorylation levels followed the same pattern in the eighth and eighteenth day after injection (t =-9.854,-6.744,both at P＜0.05).Conclusions Intravitreal injection of roscovitine can inhibit the activity of Cdk5/p25 and tau phosphorylation level in retinas of RCS rats to certain extend.

0.05).Conclusion MRI is a highly accurate diagnostic tool for detecting tears of the medial and lateral menisci.At present,there is no evidence to ascertain that higher magnetic field strength improves discriminatory power for meniscal tears.

OBJECTIVETo synthesize venlafaxine with an improved novel method.

METHODSp-methoxypheny lethyl-acid was reacted with SOCl(2) to produce acyl chloride which was reacted with N,N-dimethylamine solution to get amide; then through Ivanov reaction and reduction by KBH(4)/BF(3).Et(2)O to yield venlafaxine.

RESULTVenlafaxine was successfully synthesized by using this method with an yield rate of 50.3%.

CONCLUSIONThe improved method is suitable for industrial production of venlafaxine.

OBJECTIVETo modify the synthetic method of fluvoxamine.

METHODSFluvoxamine was synthesized from 4-trifluoromethylbenzonitrile by the steps of Grignard reaction, hydrolysis and oximation.

RESULTThe chemical structure of the synthesized product was confirmed by (1)HNMR, and the total yield reached to 36.16%.

CONCLUSIONThe results indicate that the synthetic route is practical.

Objective To evaluate the short-term and long-term efficacy of interventional therapy for acute hepatic artery thrombosis.Methods We analyzed retrospectively the interventional treatment and long-term follow-up data of 34 patients with acute hepatic artery thrombosis in Zhongshan hospital of Fudan University from March 2003 to October 2015.Results Thirty-four patients with acute hepatic artery thrombosis were performed with urokinase thrombolytic therapy.Twenty-one patients were implanted stents in the thrombolytic therapy.Splenic artery embolization were performed in 3 patient with splenic artery steal syndrome.Technical and clinical success rates were 91％ (31/34).The complication associated with interventional procedures were observed in 2 patients.The patency rates of hepatic artery in 1,2,3 and 5 years were 82％,73％,57％ and 57％ respectively.The median obstruction free time was 94 months.Conclusions Good short-term and long-term effect have been obtained in interventional treatment for acute hepatic artery thrombosis,which can be used as the first treatment for acute hepatic artery thrombosis after liver transplantation.