1.Effects of femtosecond laser assisted cataract surgery and the prognosis of patients
Ming, LIU ; Guo, ZENG ; Zhong-Xia, CHENG
International Eye Science 2016;16(8):1557-1560
Abstract?AIM: To analyze the effects of femtosecond laser assisted cataract surgery ( FLACS ) in the treatment of cataract and its effect on prognosis.?METHODS:Forty-two cases (42 eyes) of patients with cataract who were treated in the Department of Ophthalmology in our hospital between January 2012 and December 2014 were selected as the study objects. According to the order of treatment, they were divided into control group and observation group, 21 cases in each. The control group was treated with traditional phacoemulsification cataract surgery ( PCS ) . On the basis, the observation group was treated with femtosecond laser. The effective phacoemulsification time (EPT), cumulative dissipated energy (CDE), fluid flow and monitored pressure of the two groups were recorded.The rate of corneal endothelial loss and the situation of Tyndall phenomenon were statistically analyzed.The two groups were followed up for 1a.The long-term visual acuity recovery was observed.The best corrected visual acuity ( BCVA ) was recorded, and the long-term complications were statistically analyzed.?RESULTS: 1 ) The total response rate in observation group was 95% while in control group was 90% ( P>0.05);2) the surgery time of the observation group was longer than that of the control group ( P<0.05) but EPT was shorter than that of the control group.CDM and liquid flow were less than those of the control group ( P<0.05 ); 3 ) at 1d after surgery, there was no significant difference in intraocular pressure between the two groups (P>0.05); the rates of Tyndall phenomenon and corneal endothelial loss in the observation group were lower than those in the control group ( P<0.05);4) BCVA of the two groups at different time after surgery were significantly higher than that before surgery (P<0.05). However, at 1d, 3mo, 6mo and 1a after surgery, BCVA of the observation group was better than that of the control group ( P <0.05 ); 5 ) the incidence of complications in the observation group after surgery (14%) was lower than that in the control group (43%) (P<0.05).?CONCLUSION: The surgical effects of FLACS in the treatment of cataract are good.After surgery, the visual acuity of patients is improved significantly and the incidence of postoperative complications is low. However, the surgery time is long and cost is high, so it is difficult to popularize.
2.Endovascular embolization treatment for Hunt-Hess poor-grade intracranial aneurysms
Bo ZENG ; Xianghe LU ; Zequn LI ; Xianxi TAN ; Ming ZHONG
Chinese Journal of Postgraduates of Medicine 2011;34(2):1-3
Objective To explore the clinical therapeutic efficacy and value of endovascular embolization treatment for Hunt-Hess poor-grade intracranial aneurysms. Methods Eighty-seven patients with Hunt-Hess grade Ⅳ - Ⅴ intracranial aneurysrns were treated with endovascular embolization from May 2001 to February 2010,77 patients were grade Ⅳ and 10 patients were grade Ⅴ. Outcomes were assessed by using the Glasgow outcome scale (GOS). Results Follow-up time was from 3 months to 9 years. The therapeutic efficacy was as following according to GOS: 25 patients were grade Ⅰ , 5 patients were grade Ⅱ , 9 patients were grade Ⅲ , 12 patients were grade Ⅳ ,and 36 patients were grade Ⅴ. There were 55.17%(48/87) favorable outcome rate and 28.74% (25/87) mortality rate in all patients. There were 61.70%(29/47) favorable outcome rate and 25.53%(12/47) mortality rate in early stage treatment patients (diseased within 3 d), otherwise there were 47.50% (19/40) favorable outcome rate and 32.50%(13/40) mortality rate in medium and late stage treatment patients (diseased 3 d or later). There were no statistically significance in favorable outcome rate and mortality rate between them (P > 0.05). All the patients were embolized successfully ,technical complications occurred in 8 patients, 10 patients were found angiographic evidence of vasospasm. Conclusions Endovascular embolization is an effective method for treating Hunt-Hess poorgrade intracranial aneurysms. Early stage treatment is a feasible option because it can improve prognosis by reducing rebleeding and vasospasm.
3.Action mechanisms of prolactin and its receptors on penile erection and ejaculation.
Jian-zhong ZHANG ; Ai-ming XU ; Wei CHEN ; Zeng-jun WANG
National Journal of Andrology 2015;21(12):1125-1128
Prolactin is a polypeptide hormone which mainly acts on the reproductive system and plays an important role in penile erection and ejaculation. Prolactin receptors have a variety of short forms apart from the classic long form, which are widely expressed in male reproductive glands. High levels of prolactin can induce erectile dysfunction and results in secondary male infertility, which are mainly associated with the inhibition of dopaminergic activity, reduction of the testosterone level, and contraction of the cavernous smooth muscle. Moreover, low levels of prolactin can result in ejaculatory dysfunction. This article updates the views on the expressions of prolactin receptors in the male reproductive system, the effects of prolactin on penile erection and ejaculation, and its action mechanisms.
Ejaculation
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physiology
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Erectile Dysfunction
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Humans
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Infertility, Male
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Male
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Muscle, Smooth
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physiopathology
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Penile Erection
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physiology
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Prolactin
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physiology
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Receptors, Prolactin
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physiology
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Reproduction
4.Interventional therapy of pseudoaneurysms occurred after surgery
Jianzhong MING ; Bing SUN ; Zhibin ZENG ; Wenxin ZHONG ; Bixian SHEN ; Zonggui XIE
Journal of Interventional Radiology 2010;19(2):132-134
Objective To summarize the therapeutic results and experience of the interventional managements for pseudoaneurysms occurred after surgery. Methods Five pseudoaneurysms with different location that occurred after surgery in five patients were treated with different interventional managements. One patient suffered from a ruptured pseudoaneurysm of left common iliac artery, which was treated by obstructing the diseased artery with balloon via the abdominal aorta followed by the replacement of vascular prostheses. One patient had a pseudoaneurysm of right subclavian artery and endovascular covered stent was employed to isolate it. The remaining three patients were affected by pseudoaneurysm of terminal arteries and intraarterial embolization with gelfoam and/or steel coils was camed out. Results Complete closing of the pseudoaneurysm was obtained in all five patients and no therapy-related complications occurred. Conclusion Pseudoaneurysms occurred after surgery can be effectively treated with different interventional managements, it is worth popularizing this technique in clinical practice.
5.The treatment of liver tumor by CT-guided percutaneous radiofrequency ablation
Jianzhong MING ; Wenxin ZHONG ; Zhibin ZENG ; Erwei CHU ; Qiqin SONG ; Bixian SHEN
Chinese Journal of Primary Medicine and Pharmacy 2011;18(10):1323-1325
Objective To evaluate the therapeutic effcacy with CT-guided percutaneous radiofrequency ablation(RFA)for the liver tumor.Methods 60 cases of patients with a total of 73 lesions were treated with radio-frequency ablation.The diameter of the lesions was 1.4~7.0cm.with a mean diameter of 4.2cm.The therapeutic efficacy was evaluated with enhanced CT scanning and AFP.Results 45 patients of 60 cases with lesions were full damaged,no blood flow Was found on enhanced CT scans.39 patients with significantly increased blood-AFP before treatment were decreased significantly after treatment,Complications occured in 11 patients,including refractory hiccup (n=2),epidermal scald(n=3),intrahepatic hemorrhage(n=2)and hepatic abscess(n=1).Conclusion The radiofrequency ablation was simple and effective treatment of liver tumor.The effect could be similar to that of surgical resection.
6.Safety and efficacy of upper-pole access percutaneous nephrolithotomy
Yongda LIU ; Weide ZHONG ; Jian YUAN ; Guohua ZENG ; Wenqi WU ; Jintai LUO ; Ming LEI ; Ze ZHANG
Chinese Journal of Urology 2012;33(6):409-412
Objective To review the safety and efficacy of upper-pole access percutaneous nephrolithotomy (PCNL). Methods From May 2008 to May 2010,237 cases ( 135 males and 102 females with mean age of 42 yrs) of renal or proximal ureteral calculi treated with upper-pole access PCNL were reviewed.The indications included calculus larger than 1.5 cm or impacted proximal ureteral calculi in 94 cases,calculus≥2 cm or impacted renal pelvic calculi in 26 cases,staghorn or multiple calculi in 68 cases,complex lower calyx calculi in 13 cases,upper calyx calculi not amenable to ESWL or URS in 12 cases,calculi within upper calyx diverticulum in 3 cases,combined UPJ obstruction or upper ureteral stenosis in 8 cases,morbidly obese patients in 3 cases,calculi within horseshoe kidneys in 6 cases,calculi within transplanted kidneys or ureters in 4 cases.Of the 237 cases,175 tracts (73.8%) were above the 12th rib,46were above the 11th rib,12 were below the 12th rib,4 were in the lower abdomen for renal transplant patients. Results The overall stone clearance rate with upper-pole access PCNL monotherapy was 74.3%.Additional punctures were required in 55 cases and combined ESWL in 6 cases.Total stone clearance rate at 3 months after operation was 88.2%.16 patients (6.8%) had a pleural injury.Thoracentesis was required in 8 patients,closed thoracic drainage in 5 patients,conservative treatment in 3 patients.After nephrostomy tube removed,pleural irritation symptom appeared in 12 cases (5.1%) who required symptomatic treatment.No patient had injury to the lung or other viscera.Significant bleeding requiring blood transfusion was olserved in 5 patients,while selective renal arterial embolization was required in 2 cases. Conclusions Upper-pole access offers optimal visibility,convenience for the movement of rigid nephroscope and high stone-free rate.It should be attempted in selected cages of upper ureteral calculi and complex renal calculi.
7.Treatment of ketamine-associated bladder dysfunction with bladder hydrodistention
Yongda LIU ; Jian YUAN ; Guohua ZENG ; Ming LEI ; Jintai LUO ; Ze ZHANG ; Weide ZHONG
Clinical Medicine of China 2012;28(7):746-748
Objective To evaluate the efficacy and safety of bladder hydrodistention for the treatment of ketamine-associated bladder dysfunction.Methods Six patients were required to withdraw the ketamine and treated with bladder hydrodistention therapy and sodium hyaluronate irrigation,and medicine to pretect liver and kidney was also used.Results The biopsies of 6 cases demonstrated the cystitis through biopsy.Lower urinary tract symptoms such as urgency,thamuria and odynuria were significantly relieved after bladder installation within 30 days.The O'Leary-Sant ICSI scores and the ICPI scores reduced to 3.5 ± 1.6,2.8 ± 1.5 respectively.The functional bladder capacities increased to an anverage of (180 ± 28)ml,.2-3 times of nocturia,Qmax (14.4 ± 4.3) ml/s.All cases were followed up for 4 to 18 months.Symptoms disappeared or were significantly relieved in all patients.Conclusion Contracture of bladder might be the main presentation of ketamine-associated bladder dysfunction.Intravesical hydrodistention therapy and sodium hyaluronate irrigation could be the safe and effective therapy in the treatment of katamine-associated dysfunction.
8.Experimental Study on the Effects of Surfactants on Cellulase From Trichoderma viride
Jia LIU ; Xing-Zhong YUAN ; Guang-Ming ZENG ; Jin-Gang SHI ;
China Biotechnology 2006;0(08):-
The effects of surfactants on the production of cellulase by Trichoderma viride in liquid substrate fermentation process were investigated. Straw was used as the sole carbon source and the surfactants were biosurfactant rhamnolipid from Pseudomonas aeruginosa and Tween 80. The changes of FPA,CMCase,Avicelase and surface tension with time were analyzed under different concentrations of the two surfactants. The results showed that the surfactants can enhance the enzyme activity of Trichoderma viride. The FPA,CMCase,Avicelase were promoted 1.08,1.6 and 1.03 times higher than the controls by rhamnolipid. The enhancement of the enzyme activity by rhamnolipid was much higher than that of Tween 80. At the same time,rhamnolipid was not degraded prior to other substrate.
9.Detection of the expression level of Toll-like receptor3 by establishing real-time fluorescence quantitative method
Zai-Xing YANG ; Yan LIANG ; Chang LI ; Xian-Ming ZENG ; Ye ZHU ; Ren-Qian ZHONG ;
Chinese Journal of Laboratory Medicine 2003;0(10):-
Objective To establish a specific fluorescence quantitative method for determining the mRNA expression of Toll-like receptor3(TLR3)in peripheral blood mononuclear cells(PBMCs).Methods Using the Beacon Designer 2.1 software,specific primers and Taqman-MGB probe were designed.The plasmid pMD18-T-TLR3 was constructed as calibrator and the amplified fragment was obtained by reverse- transcript-PCR(RT-PCR).RNA quantification based on cycle threshold values(Ct)was used to establish the standard curve.According to which,the TLR3 mRNA levels in 30 normal individuals,20 patients with primary biliary cirrhosis(PBC)and 20 ones with chronic liver cirrhosis induced by HBV were calculated automatically by software after the fluorescence of PCR product was detected continuously during amplification.Results The linear detection range of the assay for TLR3 gene and ?-actin was 10~2-10~8(r= -0.9974)and 10~3~10~8(r=-0.9984),respectively.The coefficient of variation of both intra-and inter- assay reproducibility for high concentration sample were 6.7% and 8.7%,respectively,and those for low concentration sample were 12.3% and 14.0%.The TLR3 mRNA expression level ranges from 3.46?10~2- 4.51?10~3 copies/?g RNA,4.92?10~2-1.42?10~4 copies/?g RNA and 2.58?10~2-7.17?10~3 copies/?g RNA for 30 healthy individuals,20 PBC patients and 20 ones with chronic liver cirrhosis induced by HBV, respectively.Conclusion We have successfully set up a FQ-RT-PCR method for detecting TLR3 mRNA, which may be used as an excellent tool for the clinic and basic study on the expression of TLR3 gene.
10.Transcatheter uterine artery intervention for placenta increta
Zhibin ZENG ; Jianzhong MING ; Bixian SHEN ; Jing HUANG ; Wenxin ZHONG ; Erwei CHU ; Qiqin SONG
Chinese Journal of Interventional Imaging and Therapy 2010;7(2):101-103
Objective To investigate the method and clinical effect of interventional treatment on placenta increta.Methods Fifteen patients with placenta increta were treated interventionally through uterine artery.and Methotrexate 50-100 mg were superselectively infused.Then gel foam particulate or stripes were used for embolization of uterine artery.The therapeutic effect,prognosis and side effects were observed and analyzed.Results All patients underwent uterine artery embolization (UAE) .One week after UAE,curettage was successfully performed.No heavily hemorrhage nor hysterectomy occurred.Conclusion Transcatheter uterine artery intervention is simple,safe and effective with highly successful rate and has little side effects for the treatment of placenta increta.