Objective To investigate the effects of advanced glycation endproducts (AGEs) on proliferation of pericytes of bovine retinal capillary vessels and expression of transforming growth factor ?(TGF-?). Methods [WTBZ]The proliferation of pericytes detected by methyl thiazolyl tetrazolium (MTT) colorimetric assay, cellular cycle of pericytes was analyzed by flow cytometry was used to analyze cell, and TGF-? protein expression of pericytes was observed by immunofluorescent staining. Results AGEs inhibited the proliferation of pericytes of bovine retinal capillary vessels, stopped the cellular cycle of pericytes in synthesis phase (S phase), increased the number of apoptotic cells obviously (P

AIM:To investigate the effect of renal denervation ( RDN) by radiofrequency catheter ablation on the expression of aquaporins ( AQP) in dog kidneys .METHODS:Adult Chinese Kunming dogs ( n=12 ) were randomly divided into RDN group and control group (6 for each group).The dogs in RDN group underwent bilateral RDN using ra-diofrequency catheter ablation , and radiofrequency catheter was positioned in bilateral renal artery without ablation in con -trol group.The levels of norepinephrine (NE) and AQP1~3 in the renal tissues were detected 1 month after RDN, and blood pressure (BP) measurements were performed at baseline and 1 month after RDN.RESULTS: The level of NE in RDN group was significantly lower than that in control group (P<0.01).The expression of AQP1~3 in the renal cortex and medulla was lower in RDN group than that in control group .RDN also caused a substantial BP reduction (P<0.05). CONCLUSION:RDN substantially decreases the tissue levels of NE and AQP in dog kidneys , and also decreases BP sig-nificantly , which might be involved in the mechanism of BP reduction by RDN .Renal sympathetic nerve plays an excitatory role in the regulation of AQP in the kidney.

[ ABSTRACT] AIM: To evaluate the guiding effect of high-frequency stimulation ( HFS) on renal denervation ( RDN) , and to compare the similarities and differences of blood pressure changes at the time of electrical stimulation and radiofrequency ablation .METHODS:A total of 6 Kunming dogs were included in this study .Renal artery abnormalities were excluded by angiography .High-frequency stimulation and radiofrequency ablation were performed at the same sites from distal to proximal segments of the renal artery .Invasive blood pressure ( BP) was recorded during the whole proce-dure.The change of the blood pressure was analyzed .HE and Masson staining was adopted to detect the structural changes in the wall of the renal artery and surrounding tissues .The immumohistochemical staining for tyrosine hydroxylase ( TH) was used to observe the renal nerve damage after ablation .RESULTS: Electrical stimulation and radiofrequency ablation were delivered in a total of 50 sites.The BP increasing response was induced at 34%sites (n=17), while the rest sites (66%, n=33) had no response.Compared with the baseline , HFS caused the increases in systolic BP of (0.34 ±3.38), (0.41 ±3.04), (10.47 ±5.73), (13.27 ±3.63), (10.17 ±1.87) and (0.78 ±1.87) mmHg in 6 serial 20 s time segments during 120 s of HFS at positive BP response sites .Similarly, the increases in systolic BP by (-0.88 ±3.44) , (-1.64 ±3.47), (13.17 ±3.12), (12.82 ±3.21), (9.50 ±2.68) and ( -6.09 ±2.21) mmHg were observed dur-ing 120 s of ablation procedure at the same sites in 6 serial 20 s time segments .At non-responding sites , HFS and ablation failed to cause a significant increase in systolic BP .The mean area of nerves in the response sites was ( 0.51 ±0.28 ) mm2, whereas that in non-response sites was (0.09 ±0.06) mm2(P<0.01).The average absorbance values of TH in re-nal nerves at ablation and non-ablation sites were 0.031 ±0.015 and 0.085 ±0.018 ( P <0.01 ) , respectively . CONCLUSION:Renal sympathetic nerves can be effectively mapped by HFS .Radiofrequency ablation guided by HFS is valid to injure sympathetic nerves around renal artery .

OBJECTIVE:To compare and analyze the ADR in Chinese Pharmacopoeia(2010 edition)(ChPD)and non-phar-macopoeia quality standard drugs(NChPD)and its standard. METHODS:In respective study,ADR reports and drug utilization da-ta in our hospital from 2012 to 2014 were collected and divided into ChPD group and NChPD group,the index differences were an-alyzed. RESULTS:The percentages of reported ADR to product regulation [(0.27 ± 0.10)%] and to drug use frequency [(0.15 ± 0.06)%] in ChPD group were significantly lower than NChPD group [(0.62 ± 0.08)%、(0.32 ± 0.07)%],with statistical signifi-cance (P<0.05). Compared with the percentage of general reported ADR to drug use frequency in NChPD group [(0.44 ± 0.12)%],there was no significant difference in ChPD group [(0.23±0.09)%](P>0.05);the percentage of new severe reported ADR to drug use frequency in ChPD group [(0.04 ± 0.01)%] was significantly lower than NChPD group [(0.27 ± 0.05)%],with statistical significance (P<0.05). And there were no significant differences in indexes in different years (P>0.05). CONCLU-SIONS:Drug quality standards should be payed more attention,from the perspective of which to reduce the incidence of adverse drug reactions. While the drugs introduced to hospital should be strictly controlled and timely adjust the drug structure;the pharma-copoeia standard drugs should be generalized among doctors to reduce ChPD drug reactions and ensure the drug safety.

Objective To study the clinical effects of uncemented long-stem hemiarthroplasty for the treatment of comminuted intertrochanteric fractures in elderly patients.Methods Included in this retrospective study were 36 senile patients with comminuted intertrochanteric fracture who had been treated from September 2012 to July 2014.They were 16 males and 20 females with an average age of 86.4 years (from 80 to 94 years).All the fractures were single-sided.According to the Evans-Jensen classification,15 cases were type Ⅲ,12 type Ⅳ and 9 type Ⅴ.According to the Singh index,their osteoporosis was classified as grade Ⅳ in 13 cases,as grade Ⅲ in 14 and as grade Ⅱ in 9.The Harginge approach was used in all the patients and hemiarthroplasty was performed using the uncemented long-stem Wagner SL prosthesis.Results For this cohort,the operation time ranged from 35 to 55 min (average,43.5 min),and the intraoperative blood loss from 200 to 320 mL (average,240 mL).All the incisions healed by the first intention.Postoperatively,respiratory system infection occurred in one case but was cured after symptomatic treatment.One patient died 3 months after operation.The follow-up time for the rest 35 patients ranged from 14 to 20 months (average,16 months).The average Harris score was improved from preoperative 28.3 points to 84.3 points at the final follow-up;the Harris scoring resulted in 24 excellent cases,8 good ones and 3 fair ones (with an excellent and good rate of 88.9％).There were no such complications during the follow-up as joint dislocation,prosthesis loosening or subsidence,or articular infection.Conclusion Hemiarthroplasty using the uncemented long-stem Wagner SL prosthesis is a fine treatment for elderly patients with comminuted intertrochanteric fracture,owing to the advantages of quick recovery,improved quality of life,reduced complications following prolonged bed rest and satisfactory short-term outcomes.

OBJECTIVE: To compare postoperative voice recovery time of vocal polyps treated with different power levels of CO2 laser and conventional laryngeal microsurgery on vocal polyps. METHOD: Two hundred patients with vocal polyps were randomly divided into four groups, which were respectively treated with conventional laryngeal microsurgery and different power levels of CO2 laser (2 W, 4 W and 6 W) under laryngoscope. The postoperative voice recovery time were analyzed. RESULT: All vocal polyps were resected at one time without any serious complications like dyspnea or bleeding. The postoperative voice recovery time were 7.2 days for the group of patients received conventional laryngeal microsurgery and 7.6 days for the group of patients treated with 2 W CO2 laser, which were hoch significantly different from that in the group of patients treated with 6 W CO2 laser (P < 0.05). CONCLUSION The postoperative recovery time of patients treated with conventional laryngeal microsurgery and small power of CO2 laser is shorter than those operated with the other larger power of CO2 laser.
Adult ; Aged ; Female ; Follow-Up Studies ; Humans ; Laryngoscopy ; Laser Therapy ; Male ; Microsurgery ; Middle Aged ; Polyps ; surgery ; Postoperative Period ; Recovery of Function ; Vocal Cords ; Young Adult

ObjectiveTo discuss the incidence,treatment and effect of cryptogenic hemoptysis (CH).MethodsPatients with CH were selected from 231 patients with hemoptysis according to clinical evaluation,chest radiography,fiberoptic bronchoscopy and CT scan,and the clinical data and treatment methods were retrospectively analyzed.ResultsFifty-three of 231 patients referred for CH,the incidence of CH was 22.94 ％ (53/231),of which 45 (45/53,84.91％ ) received internal conservative treatment and 8 (8/53,15.09％) received bronchial artery embolization (BAE).High resolution CT (HRCT) showed ground-glass opacities in 20 CH patients after hemoptysis.Bronchial arteriography showed abnormalities,including arterial enlargement and localized hypervascularity in 8 patients and systemic to pulmonary shunting in 3 patients.No recurrence of hemoptysis was observed during 1 to 8-year follow-up.ConclusionBleeding can be controlled in most of CH patients by internal conservative treatment,only a few patients with massive hemoptysis need BAE,and both treatments have good short and long term results.

Objective To investigate the effects of waist-to-hip ratio (WHR) on the formation of carotid plaque in the middle-aged and elderly people.Methods A total of five thousand and ninety-nine participants who have taken physical examination in Tangshan Kailuan Company from June 2010 to October 2011(above 40 years old,no previous history of ischemic stroke,transient ischemic attack,myocardial infarction) were enrolled in this study.Questionnaire survey,blood biochemical and carotid artery ultrasound examination were used to examine the subjects.According to WHR,quartile division was used to divide the subjects into four groups.The detection rates of carotid plaque among the 4 groups were compared.Multivariate logistic regression analysis was used to analyze the factors effecting carotid artery plaques.Results (1) The detection rate of carotid artery plaque increased with the increase of WHR,the rates of the first,second,third and fourth group were 20.7% (571/2 753),21.9% (604/2 753),27.5% (758/2 753) and 29.8% (820/2 753) respectively.The difference was statistically significant(P=0.000).(2) Logistic regression model was used to analyze multiple factors affecting the detection rate of carotid plaque.After the correction of other factors,compared with the first group,the carotid artery plaque detection rate in the second,third,fourth group were all increased,the OR values were 1.23(95%CI:1.10~1.54),1.65(95%CI:1.52~2.13),1.67(95%CI:1.54~2.17),respectively.Conclusion The increased WHR in the middle-aged and elderly population may increase the risk of carotid plaque formation.

Objective To analysis the relationship between of waist-to-height ratio(WHtR) and the non-alcoholic fatty liver disease(NAFLD).Methods A total of 7 896 were selected as observed subjects from the Kailuan Group in 2011-2012 health physical examination.A questionnaire survey,blood biochemical and abdominal ultrasound examination were finished by trained medical staff.According to previous study recommended cut points the observed subjects was divided into two groups:abdominnal obesity group(WHtR≥0.5,n=3 185) and non-abdominnal obesity group(WHtR<0.5,n=479).According to the WHtR and its quartile,the observed subjects was divided into four groups(first(WHtR<0.47),second(0.47≤WHtR<0.51),third(0.51≤WHtR<0.55) and forth(WHtR≥0.55) quartile groups).NAFLD detection rate of the four groups were Compared.Multiple Logistic regression analysis was used to analyze the influencing factors of the NAFLD.Results (1)The detection rate of NAFLD in abdominnal obesity group was higher than that in non-obesity group(62.7% vs.21.5%,P<0.01).Along with increasing WHtR level in the 4 quartile groups,the incidence of NAFLD was progressively increased,being 12.6 %,38.1%,57.5% and 72.5% respectively in the total population.After stratified by gender,15.1%,40.6%,59.6% and 75.0% in male,7.8%,31.5%,48.3% and 63.8% in female.In the same WHtR group,the NAFLD detection rate of male was higher than female,the differences were statistically significant(P<0.01).(2)Multiple logistic regression analysis showed that compared with the first quartile group,the second,third and forth quartile groups had increased risk of NAFLD after adjusting age,gender and other risk factors,the OR value being 3.19,5.93 and 9.81 in the total population.After adjusting above factors,the OR value being 3.12,6.02 and 10.45 in male,3.32,5.37 and 7.57 in female,respectively.Conclusion The incidence of NAFLD is increased along with the increasing the WHtR.

Objective: To investigate the inlfuence of angiotensin converting enzyme 2 (ACE2) on lectin-like oxidized low density lipoprotein receptor-1 (LOX-1) protein expression and to explore the protective effect of ACE2 on vascular endothelial cells. Methods: Our work includedin vitro andin vivo studies. For in vitro experiment, the human umbilical vein endothelial cell (HUVEC) were cultured and transfected with replication deficient recombinant adenovirus of ACE2 (Ad-ACE2), and LOX-1 protein expression stimulated by angiotensin 2 was examined by Western blot analysis. Forin vivo study, atherosclerosis plaques were induced in 20 apolipoprotein E-deifcient (ApoE-/-) mice, and then randomly divided them into 2 groups: ACE2 group, the mice received Ad-ACE2 (2.5×109 pfu/ml) injection through caudal vein, EGFP (enhanced green lfuorescent protein) group, the mice received equal replication deifcient recombinant adenovirus of EGFP (Ad-EGFP) injection through caudal vein.n=10 in each group. The animals were executed after 1 month treatment to collect abdominal aorta. Lipid content in atherosclerosis plaque was evaluated by Oil red O staining and LOX-1 protein expression was examined by immunohistochemistry and Western blot analysis. Results: Bothin vitro andin vivo experiments conifrmed that endothelial cell LOX-1 protein expression was signiifcantly inhibited by ACE2 transfection. The lipid content in ACE2 group was obviously lower than that in EGFP group byin vivo study. Conclusion: ACE2 may inhibit LOX-1 protein expression and therefore reduce the progress of atherosclerosis.