Dermatitis, Occupational ; etiology ; Humans ; Trichloroethylene ; poisoning

Objective To investigate the influences of telmiaartan on renal expression of adiponectin (APN) in insulin resistance rats. Methods Insulin resistance rat model was induced by long-term high-fat feeding and was assessed by euglycemic-hyperinsulinemia clamp technique. The morphological changes of the kidney lissue were observed by the light and electronic microscopy.Glomerular APN mRNA ex-pression and protein synthesis were evaluated by the reveree transcription polymerase chain reaction and immunohistochemical staining re-spectively. Results Both APN mRNA and APN protein were lower in insulin resistance rats than those in control rats (P < 0.05). More-over, the main features of the renal parenchyma were observed in insulin resistance rats. The expression levels of APN mRNA and APN pro-tein were increased after the treatment with lelmisartan (P <0.05). The renal damage was significantly reduced as well. Conclusion The up-regulation of APN expression induced by telmisartan might prevent the renal damage of insulin resistance.

Objective To evaluate the prognostic significance of p53, p21/WAF1 and pRb in T 1G 3 transitional cell carcinoma (TCC) of the urinary bladder. Methods Paraffin embedded sections from 47 patients with T 1G 3 TCC of the bladder were studied by immunohistochemistry, using monoclonal antibodies of p53, p21/WAF1 and pRb. The immunostaining results were analyzed in relation to the tumor progression, and compared with the clinical parameters on prognostic significance. Results Of the 39 patients treated by TURBT or partial cystectomy, the total progression rate of the tumor has been 59%.Of the 8 patients treated by cystectomy,one had pulmonary metastasis 2 years after the operation.The abnormal expression rates of p53, p21/WAF1 and pRb were 66.7%, 51.4% and 71.8% respectively. Multivariate analysis indicated that only the combined abnormal expressions of p53, p21/WAF1 and pRb provided prognostic information in T 1G 3 TCC of the bladder. Conclusions Immunohistochemical evaluation of p53, p21/WAF1 and pRb nuclear expressions would help the prognostic evaluation cases of T 1G 3 TCC of the bladder.

ObjectiveTo observe the effect of telmisartan on the level of serum adiponectin and the expression of cardiac adiponectin (APN) receptor 1 in spontaneously hypertensive rats (SHR) in order to explore the role of APN in ventricular remodeling caused by hypertension and the new possible mechanism that telmisartan protects the heart against ventricular remodeling.Methods The sixteen 12-week-old SHR were randomly divided into SHR control group (SHR group, n=8) and SHR+telmisartan group (TEL group, n=8), and eight age-matched male Wistar Kyoto rats were regarded as control group (WKY group). The TEL group was treated with telmisartan 5 mg-1 · kg-1 ·d-1 in a small amount of distilled water and the other two groups were given equal amount of distilled water by gavage.After 8 weeks, the left ventricular end diastolic diameters (LVEDD),thickness of interventricular septal thickness (IVST), left ventricular post wall thickness (LVPWT) and mitral valve blood flow spectrums were recorded by echoeardiograph.The E/A ratio was calculated by velocity of E peak divided by A peak. The left ventricular weight index (LVWI) was calculated. HE staining and Masson staining were used to detect the pathology changes of cardiac tissue and collagen volume fraction (CVF).Serum APN concentration of SHR was detected by enzyme-linked immunosorbent assay (ELISA). The myocardial protein expression of AdipoR1 was detected by in munohistochemical staining.Reverse transcription polymerase chain reactions (RTPCR) method was used to detect the mRNA expression of AdipoRl in myocardium.ResultsThe values of IVST, LVPWT and LVWI were higher, LVEDD and E/A ratio were lower in SHR group than in WKY group.The disordered arrangement of myocardialcells,interstitialfibroblast hypertrophy and hyperplasia were observed in SHR group. The CVF increased in SHR group than in WKY group [(6.22±0.16)％ vs. (3. 18±0. 17)％, P＜0.05]. The concentration of serum APN was significantly lower in SHR group [( 10.96±2. 15)μg/ml vs. (24.32±2. 20)μg/ml, P＜0. 01].The expressions of myocardial AdipoR1 mRNA and protein were significantly lower in SHR group.The values of IVST, LVPWT and LVWI were lower, LVEDD and E/A ratio were higher in TEL group than in SHR group. The arrangement of myocardial cells were relatively ordered and interstitial fibroblasts hypertrophy and hyperplasia were not significant, CVF was decreased in TEL group versus SHR group. The concentration of serum APN was significantly higher in TEL group [(17.71 ± 5.82)μg/ml, P＜0. 01]. The expressions of myocardial AdipoR1 mRNA and protein were significantly higher in TEL group than in SHR group. Conclusions When SHR undergoes ventricular remodeling, the level of serum APN is lower, the mRNA and protein expressions of myocardial AdipoRl are significantly reduced. Telmisartan can reverse the ventricular remodeling and play the role in protecting heart in SHR, which may be due to the serum APN levels increasing, cardiac APN receptor 1 and its mRNA up-regulation.

Objective To explore the clinical features of drug hypersensitivity syndrome(DHS). Method Retrospective analysis of 18 cases of DHS was made in detail including clinical situation, laboratory examination, treatment instance,duration and prognosis. Results The earliest symptoms of all patients were skin rash and fever, which occurred in 2 to 8 weeks after the administration of the drugs, accompanied with superficial lymphadenopathy in 13 patients, liver dysfunction in 14 patients, renal impairment in 11 patients, leukocytosis in 13 patients and eosinophilia in 10 patients. The skin lesions were multiform. The common eruption was purpura-like erythemas, accompanied with swelling and repeated desquamation. The suspected drugs were as follows: allopurinol in 11 cases, carbamazepine in 4 cases, phenytoin in 2 cases and minocycline in 1 case. Corticosteroid was the first line of treatment Conclusions DHS is a clinical syndrome to have characteristic symptom and a relatively severe disease. It is crucial to discontinue the suspected drugs promptly and to start sufficient dose of corticosteroid.

AlM: To observe the effects of the coelomic cavity injection of triamcinolone acetonide ( TA) combined with laser photocoagulation on patients with retinal vein occlusion.
METHODS:Fifty-six patients of retinal obstruction with macular edema were accepted from January 2010 to December 2012 in our hospital. All patients received iodized lecithin and Xueshuantong. And, patients with central retinal vein occlusion ( CRVO ) , hemi- central retinal vein occlusion ( hemi-CRVO ) and branch retinal vein occlusion ( BRVO ) treated by TA combined with laser photocoagulation, respectively. Follow-up period was of at least 6mo
RESULTS: After the treatment of 1, 3 and 6mo, the central foveal thickness was reduced significantly ( P<0. 05). After followed up 6-12mo, the total effective rate of CRVO, Hemi-CRVO and BRVO patients was 83% ~95% and all the patients had no significant adverse reactions.
CONCLUSlON:Basing on the traditional treatment, TA combined with laser photocoagulation is more effective in the treatment of retinal vein occlusion and is worthy of clinical usage.

Objective:To investigate the effects of clinically achievable dose of lovastatin on prostate cancer PC3 cells.Methods:PC3 prostate cancer cells were treated with dimethyl sulfoxide(DMSO),or lovastain only,or lovastatin with mevalonic acid for 24,48 and 72 hours respectively.MTT assay was used to detect the cell viability.By means of [3H] thymidine incorporation tests,the effects of lovastatin on cell proliferation were analyzed.Western blot was used to detect activated casepase3,caspase7,and cleaved PARP(cPARP),the important molecules on the apoptosis pathway.Results:Cell proliferation of PC3 was significantly inhibited by 39.29%[(63.69%?3.69%) vs(102.98%?6.84%),P=0.000] after 48 h treatment with lovastatin at its clinically achievable dose of 2 ?mol/L.After 72 hours the cell proliferation was inhibited by 44.24% [(52.79%?9.88%) vs(97.03%?0.87%),P=0.048].The cell number was also markedly decreased(4.86?105 ? 0.10?105) vs(9.66?105?0.10?105),P=0.000] after 72 h treatment at this low concentration of 2 ?mol/L.The viability of PC3 cells was significantly decreased 50.12%(56.52%?6.40%) vs(106.64%?5.27%),P=0.000] and 60.05%(41.99%?11.64%) vs(102.94%?8.49%),P=0.000] after 48 h and 72 h treatment,respectively.In addition,2 ?mol/L lovastatin induced activation of casepase7 and led the death substrate PARP to cleavage.Conclusion:Clinically achievable dose of lovastatin inhibits prostate cancer PC3 cell proliferation and induces PC3 cell apoptosis.

Objective To investigate the clinical efficacy of modified YV-plasty for refractory bladder neck contracture (BNC) caused by transurethral resection of prostate (TURP).Methods From June 2013 to March 2016,11 patients with BNCs secondary to TURP were included in this study.Their mean age was 63.7 years (range,56-73 years).All patients presented voiding difficulty and failed after 2 or more prior endoscopic treatments.Modified YV-reconstruction of bladder neck was performed,by incising the anterior wall of bladder neck in a T-shaped manner,and creating two well-vascularized and tension-free flaps,which offer the possibility to reconstruct a wide bladder neck.Results After a mean follow-up of 14.6 months (ranging 3-24 months),successful outcome was achieved in 9 patients without incontinence secondary by surgery.Recurrent voiding difficulty developed in 2 patients,which was cured after a following endoscopic treatment.Conclusion A wider bladder neck can be obtained through modified YV-reconstruction of bladder neck,while avoiding external urethral sphincter injury.It is an available option for refractory bladder neck contracture.

Objective To investigate the effects of different doses of 1 ,25(OH)2D3 on rat Thy‐1 nephritis mesangial cell ap‐optosis .Methods 120 clean SD rats were divided into the blank control group(group A) and the experimental group .The experi‐mental group was re‐divided into the nephritis group(group B) ,0 .25μg 1 ,25(OH)2D3 intervention group(group C) and 0 .50μg 1 , 25(OH)2D3 group(group D) ,30 cases in each group .The group C and D were performed the medication intervention after success‐fully constructing the model .6 rats were randomly killed in each group on 1 ,3 ,7 ,14 ,21 d after intervention .The renal tissues were taken for determining the renal pathological injury classification after hematoxylin and eosin staining and PAS staining .The expres‐sion of Caspase‐3 in the renal tissues was detected by the immunohistochemistry method ,and the glomerular cell apoptosis was de‐tected by TUNEL .Results The immunohistochemistry results showed that compared with the group A ,the Caspase‐3 expression in the group B was increased (P<0 .05);compared with the group B ,the Caspase‐3 expression in the group C and D was increased , but there was no statistical differences between them (P> 0 .05);the Caspase‐3 expression in the group D was highest ,but the difference was not statistically significant compared with the group C .The TUNEL results showed that compared with the group A ,the apoptotic glomerular cells in the group B were increase obviously (P<0 .05) ,which was gradually enhanced over time ;com‐pared with the group B ,the apoptotic glomerular cells in the group C and D were increased significantly (P<0 .05) ,reaching a peak on 3 d ,then decreasing gradually on 7 ,14 d and tending to be normal on 21 d(P<0 .05);the comparison between the group C and D showed that the apoptotic cells in the group D were increased significantly ,but the difference between these two group ,was not statistically significant(P>0 .05) .Conclusion 1 ,25(OH)2D3 has the effect for inducing glomerular mesangial cell apoptosis in rat , which participates in the regulation of Caspase‐3 ,induces glomerular mesangial cell apoptosis ,promotes the recovery of nephritis and could delay the progression of renal disease .

Background The cryptochrom 2 (Cry2)in mammalian retina is a main influential factor of circadian clock.Objective Purpose of this study was to investigate the effect of light exposure rhythm on expression of Cry2 in retina.Methods Thirty clean healthy Sprague Dawley(SD)rats were collected and divided into two groups randomly.The rats of the control group exposed to natural light with the normal rhythm for 30 days,but rats of the experimental group exposed to the artificial light (light: dark =18 hours:6 hours) for 3 months with the light intensity of(533± 16)lx.The histopathological change and ultrastructural alteration of rat retina in both groups were examined under the light microscope and transmission electron microscope at the end of the experiment.Expressions of Cry2 protein and its mRNA were assayed by immunohistochemistry and quantitative PCR(Q-PCR).Results The rat retinal morphology and ultrastructure were clear and order-arranged under the light microscope and transmission electron microscope in the control group.However,atrophy and disorganization of retina were found under the light microscope,and liquefaction and vacuole of outer segments of photoreceptors were observed.The vacuolar degeneration of mitochondria in the inner segments of photoreceptors,cellular nuclear shrinkage,chromatin margination,nuclear notch and destruction were seen in the outer nuclear layer under the transmission electron microscope.Immunohistochemistry showed that the expression of Cry2 protein located in cytoplasm and nuclei membrane of the retinal ganglion cell layer and inner nuclear layer in both normal rats and experimental rats.The scores of Cry2 protein expression were 0.833±0.197 in the experimental group,and 1.700±0.245 in the control group,with a significant difference between them (P=0.009).The quantities of Cry2 mRNA were 0.962 ± 0.125 in the control group and 0.615±0.100 in the experimental group,showing a significant difference between the two groups (P =0.006).Conclusions Long-term light exposure under the 533 lx leads to retinal structural and functional damage probably by down-regulating Cry2 expression in retina.Whether the regulation of Cry2 expression is helpful for stabilizing the biorhythm or not is a worthy question to explore.