Objective To observe the effect of micro-pulse laser in the treatment of acute central serous chorioretinopathy (CSC).Methods 105 cases (114 eyes) with clinically diagnosed acute CSC were included in the study,including 78 males (86 eyes) and 27 females (28 eyes) with an average age of (40.40±7.80) years,and mean duration of 26 days.All patients were examined for best corrected visual acuity (BCVA),slit lamp microscope and pre-lens,direct ophthalmoscopy,color fundus photography,fluorescein angiography combined with indocyanine green angiography (ICGA),and micro-perimetry.Patients were randomly divided into micro-pulse laser treatment group (treatment group,61 eyes) and control group (51 eyes).The age (Z ＝-0.374),gender ratio (x2=0.010),disease duration (Z=-0.525),BCVA (t=1.885),foveal thickness (CFT) (t=-1.754) and macular light sensitivity (t=1.255) were similar between the two groups.The micro-pluse laser treatment was performed with an 810 nm infrared diode laser at the active leakage site on retinal pigment epithelium guided by ICGA.The exposure time was 0.2 s,effective working time was 15％,the laser spot diameter was 100 μm,and the distance between 2 spots was 100 μm.The control group received pseudo-treatment using the same laser parameters.After 2 weeks,1month,3 months and 6 months of treatment,all patients were examined with BCVA,ocular fundus,optical coherence tomography and micro-perimetry.These parameters were compared between the 2 groups.Results The subretinal fluid of 39 eyes in the micro-pulse laser group and that of 3 eyes in the control group were absorbed completely.The cure rates in the micro-pulse laser group (61.9％) was higher than that in the control group (x2 =38.015,P＜0.01).In the micro-pulse laser group,the mean BCVA was 67.81±11.70 at baseline,which increased significantly to 75±9.91,76.78± 9.43,78.56 ± 8.57 and 78.52 ± 8.60 at 2 weeks,1 month,3 months and 6 months after treatment respectively.In the control group,that was 63.86±10.35,64.20±11.43,63.90±10.88,64.55±11.04,64.10±11.12 at baseline,2 weeks,1 month,3 months,6 months post-treatment respectively.The mean post treatment BCVA at each time point were significantly higher in the micro-pulse laser group than that in the control group (P＜ 0.01).The mean CFT was (380.94 ± 50.73) μm at baseline,which reduced to (268.44±44.20),(242.78±41.31),(235.46±38.44),(235.56±38.71) μm at 2 weeks,1 month,3 months and 6 months post-treatment respectively in the nmicro-pulse laser group.In the control group,that was (397.98±52.61),(334.55±59.15),(316.16±55.25),(314.47±53.27),(321.51±55.74) μm at baseline,2 weeks,1 month,3 months,6 months post-treatment respectively.The mean post-treatment CFT at each time point in the micro-pulse laser group were decreased significantly compared to that in the control group (P＜0.01).The mean central retinal sensitivity was (15.03 ± 2.00) dB at baseline,which enhanced to (17.06 ± 1.71),(17.37 ± 1.61),(17.56 ± 1.58),(17.48 ± 1.53) dB at 2 weeks,1 month,3 months and 6 months post-treatment respectively in the micro-pulse laser group.In the control group,that was (14.54±2.22),(14.80±2.16),(14.88±2.09),(14.82±2.07),(14.69±2.11) dB at baseline,2 weeks,1 month,3 months and 6 months post-treatment respectively.The mean central retinal sensitivity at each time point of post-treatment in the micro-pulse laser group were enhanced significantly compared to that in the controlled group(P＜0.01).Conclusion In the treatment of acute CSC,micro-pulse laser can improve BCVA,reduce the mean CFT and improve the mean central retinal sensitivity.It is an effective and safe method to treat acute CSC.

OBJECTIVE: To establish a HPLC method for the simultaneously determination of Vitamin D2, Vitamin A and Vitamin E in Cernevit-12 for injection. METHODS: An Inertsil(ODS-2) C18 column was selected as separation column at 30℃. The mobile phase consisted of acetonitrile-methanol-methylene chloride (80∶10∶10) at a flow rate of 1.0mL?min-1. The detection wavelength was set at 265nm and the injection volume was 10?L. RESULTS: The linear ranges of Vitamin D2, Vitamin E acetic ester and Vitamin A palmitate were 0.61～1.43?g?mL-1, 222.6～519.4?g?mL-1 and 1.21～2.82mg?mL-1 respectively. The average recoveries were 99.79%, 99.53% and 101.63%, with RSD of 1.66%, 0.184 6%, 0.113 4%. CONCLUSION: The method is simple, rapid and accurate, and suitable for the determination of Cernevit-12.

Objective: To study the impact of different abstinence periods on locomotor activity and contextual fear conditioning in morphine-dependent mice. Methods: Morphine hydrochloride was administrated (sc) to mice at a gradually increasing dose for 7 d to establish morphine-dependent model. After the last injection, animals were divided into MW1 d (Morphine Withdrawal for 1 d), MW7 d, MW21 d, SW1 d (Saline Withdrawal for 1 d), SW7 d and SW21 d groups randomly; the spontaneous activities of mice, including the numbers of crossing and rearing, grooming times, the number of center entries and time spent in center area, and the time spent in peripheral area, were observed in the open field box after different periods of abstinence. After the observation, the mice were trained using eight unconditioned stimulus (0.5 s; 0.5 mA foot shock) and contextual fear conditioning was tested 24 h later. Results: The times of crossing and center entries decreased in MW1 d and MW7 d mice (W1 d: P<0.001, P<0.001; W7 d: P<0.001, P<0.05); the time of rearing in MW1 d group was also decreased significantly (P<0.001); mice in MW1 d group had more grooming behaviors (P<0.05). The periods spent in the center and peripheral areas were not significantly different between all the 3 morphine-dependent groups and their corresponding saline withdrawal groups. In addition, a history of morphine injection selectively impaired the contextual fear conditioning in mice of MW1 d group (P <0.05). Conclusion: During the early period of morphine abstinence, mice have a decreased spontaneous activity and an impaired contextual fear conditioning.

Objective Through observing the changes of serum creatinine (Scr),blood urea nitrogen (BUN),and Cystatin C (Cys C) to prove whether the treatment of patients of diabetic nephropathy (DN) in V period with Jiawei-qidan-tangshen decoction is really effective.Methods 60 patients of DN in V period were randomly divided into a treatment group and a control group by random number table method,with 30 patients in each group.Glycated hemoglobin (HbA1c),serum creatinine (Scr),blood urea nitrogen (BUN),and Cystatin C (Cys C) were detected before and after the treatment.Results 12 weeks after treatment,Scr,Cys C (19.19±37.06) μmol/L,(1.81 ±0.69)mg/L had significantly declined in the treatment group (P＜0.001),and had no significant change (147.25±62.70)μmol/L,(2.04± 1.20)mg/L in the control group (P＞0.05).Total effective rate of Scr and Cys C was 73.33％ and 83.33％ in the treatment group and 40％ and 53.33％ in the control group respectively,both showing significant difference (P＜0.05).Conclusion It is effective to treat patients of DN in V period with,Jiawei-qidan-tangshen decoction,and have no obvious side effects.

To investigate the anti-inflammatory, analgesia and antipyretic effects of Chaige Qingre granules. Meth-ods:Kunming mice were used to make auricle swelling model by dimthylphenanthrene, and the auricle swelling degree was measured to test the anti-inflammatory effect of Chaige Qingre granules. Mice were used to make pain models by acetic acid, and the body twis-ting of the mice was counted to observe the analgesia effect of the granules. The fever model in rats was induced by yeast, and the body temperature of the rats was measured to investigate the antipyretic effects of the granules. Results:Chaige Qingre granules could relieve the auricle swelling degree significantly, and the inhibition rate was 46. 3% in the high dose group. High and middle dose groups could reduce the body twisting frequency with the inhibition rate of 51. 1% and 61. 8%, respectively. Every Chaige Qingre granules group could lower the body temperature after one hour of the administration, and the temperature could be reduced 0. 56 degrees Celsius in the high dose group. Conclusion:Chaige Qingre granules can effectively inhibit auricle swelling degree, relieve pain and reduce heat.

Objective To explore the effect of nBiPAP on ET-1 of patients with overlap syndrome.Methods Levels of ET-1 in plasma of 25 cases of OS,20 cases of COPD were analysed by radioimmunoassay,and ET-1 in OS was measured before and after treatment.The relationship between ET-1 with SaO_2 during sleep was analyzed. Results (1)The ET-1 levels in plasma of OS group were significantly higher than those of COPD group before treatment(P

Objective To study the regulating roles of PAI 2 in the differentiation mechanism of the human epidermis. Methods Human skins were take from the early, middle and late human embryos respectively and observed with immunocytochemistry and in situ hybridization techniques. The cell culture and dot blot were also used in the observation of the materials from late embryo. Results 1 PAI 2 exhibits a very high experssion in the development of embryonic period, with the highest level in the middle embryonic phase while the transcripts of PAI 2 still keep a rather high level in the late human embryonic stage. 2 PAI 2 is mainly localized in the superficial, more differentiatied layers of the epidermis.3 PAI 2 is localizated in peripheral cytoplasm of the vitro or vivo keratinocyte.Conclusion PAI 2 is involved in the regulation of the keratinocyte differentiation. [

lschemic postconditioning(IPo)is a way that after long ischemia on liver graft,animals are given one or several brief reperfusion-ischemia before persistent reperfusion to improve the hepatic tolerance and relieve the ischemie reperfusion injury.It has been proved an effective and controlled method to attenuate the ischemic reperfusion injury.Protective mechanism of ischemic postconditioning on hepatic graft is related with protecting sinus hepaticus endotheliocyte and hepatic microcirculation,relieving hepatic cells injury and inflammatory reaction induced by oxygen free radicals,relieving calcium ovedoad in hepatic cells and mitochondria,regulating apoptosis genes,transforming ion channels condition in mitochondria.This article will makes a brief review on protective mechanism ofhepatic ischemic posteanditioning.

Objective To evaluate the efficacy of intravitreal injections of conbercept in choroidal neovascularization (CNV) secondary to pathologic myopia (PM).Methods A retrospective case series of 37 eyes of 37 patients affected with CNV secondary to PM treated by intravitreal injections of Conbercept.All the patients were examined with best-corrected visual acuity (BCVA) of Early Treatment Diabetic Retinopathy Study (ETDRS) chart,central macular thickness (CMT) of optical coherence tomography (OCT) at baseline.The initial average letters of ETDRS BCVA was 49.86±8.87,CMT was (306.38±31.01) μm.All eyes were treated with intravitreal Conbercept 0.05 ml (10 mg/ml).Follow up visits were performed monthly after injection.The mean follow-up time was 16.8 months.Injections were repeated according to the situation of BCVA,CMT,subretinal fluid and CNV leakage in follow-up.All eyes received an average of 4.8 injections.BCVA,CMT and ophthalmoscope examination were assessed monthly.The relationship of BCVA improvement and CMT reduction with the data at baseline and number of treatments were analyzed by Spearman Rho correlation respectively.Results During the 1,3,6 and 12 months after treatment,the mean BCVA were all improved with statistically significant difference (t=17.629,P＜0.01).At 12 months,15 eyes (45.9％) had improvement of 15 letters or more,32 eyes (86.5％) had improvement of 5 letters or more,and 1 eye (2.7％) had decreased more than 5 letters.During the 1,3,6 and 12 months after treatment,the mean CMT were all decreased with statistically significant difference (F=43.726,P＜0.01).At 12 months,the retinal fluid of 34 eyes (91.9％) were absorbed completely;33 eyes (89.2％) had angiographic closure at that time.There was no significant relevance between BCVA improvement and sex,age and course of the disease (P＞0.05),but a significant negative correlation was found between the BCVA improvement and BCVA at baseline,injection times (P＜0.05).There was no significant relevance between CMT reduction and sex,age,course of the disease and injection times (P＞0.05),but a significant positive correlation was found between CMT reduction and CMT at baseline (P＜0.05).There were no systemic or ocular serious side effects during the follow up.Conclusions Intravitreal injections of Conbercept showed BCVA improvement and CMT reduction.It appeared to be effective and safe for choroidal neovascularization secondary to pathologic myopia.Intravitreal Conbercept for CNV secondary to PM showed BCVA improvement,CMT reduction and safety.