0.05).The survival area and capillary density were more favorable in the EPCs-injection sites than the controls(P

Background Bevacizumab is primarily aimed at pathologic angiogenesis for off-label uses such as the treatment of ocular neovascular disorders.However,as a new anti-fibrotic and anti-angiogenic agent following trabeculectomy,the safety and efficacy of bevacizumab by multiple-time and high-dose subconjunctival injection are still under study.Objective This study was to assess the safety and efficacy of bevacizumab after multiple-time and high-dose subconjunctival injections.Methods Regular trabeculectomy filtration surgery was performed on both eyes of 18 clean New Zealand White rabbits 0.1ml of bevacizumab(25g/L) was subconjunctivally injected intraoperatively and 3,5,7 days postoperatively in the left eyes of rabbits,and no any intervene in the right eyes were as normal controls.Bleb morphology was examined every 2 days and graded based on Moorefield's criteria and compared between the bevacizumab-treated eyes and normal saline(NS) eyes.The animals were sacrificed at 10,20 and 30 days after surgery respectively.The histopathological changes of the blebs were detected by hematoxylin and eosin stain to evaluate the cellular element around the bleb,and Masson stain was used to assess the degree of fibroblast proliferation.The degree of vascularity of bleb was identified by anti-vWf stain.Approval of this protocol was obtained and permitted from People's Hospital Institutional Animal Care and Use Committee of Peking University.The use of experimental animals complied with the Regulation for the Administration of Affair Concerning Experimental Animals by State Science and Technology Commission.Results Compared to the NS-treated eyes,bevacizumab-treated eyes showed the larger and more diffusely elevated blebs with the significant difference(2.48±0.22cm2 versus 1.73±0.27cm2,t=5.194,P＜0.05).The survival time of the filtration bleb in bevacizumab panel was longer in bevacizumab-treated eyes compared to control eyes,showing a significantly difference between them(21.0±1.56 days versus 12.5±1.97 days,t=3.830,P=0.005).Histological and immunohistochemical analysis confirmed that bleb and adjacent conjunctiva vascularity(A value) was significantly less in bevacizumab-treated eyes than that in control eyes at 20 days after surgery with the difference value 14320.7±4134.9(t=12.275,P＜0.05),and fibroblast deposition value was evidently diminished after bevacizumab treatment at 30 days following surgery in comparison with control eyes with the mean difference 0.27±0.03(t=15.980,P＜0.05＝.Conclusion Repeated subconjunctival injection of bevacizumab can effectively prolong the survival time of bleb in a rabbit model of trabeculectomy and limit the degree and area of vascularization in 30 days following surgery.Bevacizumab inhibit fibroblast-meditated tissue formation significantly in the later phase of vascularization after trabeculectomy.

OBJECTIVETo detect the platelet glycoprotein-specific antibodies in serum of thrombocytopenia patients and evaluate its diagnostic value for immune thrombocytopenia.

METHODAnti-GPIIb/IIIa, GPIb/IX and GPIa/IIa antibodies were assayed by ELISA kit (PAKUTO) in patients with thrombocytopenia.

RESULTSThe sensitivity and specificity of PAKAUTO in immune thrombocytopenia were 44.0% and 95.7%, respectively. The values of positive and negative predictions were 98.0% and 26.2%, respectively. Among those PAKAUTO positive patients, positive rates of GPIIb/IIIa, GPIa/IIa and GPIb/IX were 87%, 35% and 10%, respectively. The positive rate of patients not received immune suppressive agents (58.5%) was significantly higher than those received immune suppressive agents (26.9%) (P < 0.01). The positive rate of patients with platelet count ≤ 20 × 10(9)/L (51.6%) was significantly higher than those with platelet count > 20 × 10(9)/L (27.8%) (P < 0.01). The positive rate of patients with secondary immune thrombocytopenia (66.7%) was significantly higher than those with primary immune thrombocytopenia (41.7%) (P < 0.05).

CONCLUSIONThe highly specific method (PAKAUTO) could effectively differentiate immune or non-immune thrombocytopenia and be applied to diagnosis of immune thrombocytopenia.

Autoantibodies ; analysis ; immunology ; Enzyme-Linked Immunosorbent Assay ; methods ; Female ; Humans ; Male ; Platelet Glycoprotein GPIIb-IIIa Complex ; immunology ; Platelet Glycoprotein GPIb-IX Complex ; immunology ; Platelet Membrane Glycoproteins ; immunology ; Sensitivity and Specificity ; Thrombocytopenia ; diagnosis ; immunology

Silibinin, a natural flavonoid antioxidant isolated from extracts of the milk thistle herb, has recently been identified as having anti-hepatotoxic and anticancer properties. In this paper, we investigated the effects of silibinin on behavior and neuroplasticity in mice subjected to chronic unpredictable mild stress (CUMS). After 5 consecutive weeks of CUMS, the mice were treated with silibinin (100 mg/kg, 200 mg/kg and 400 mg/kg by oral gavage) for 3 consecutive weeks. The results showed that silibinin administration significantly alleviated the CUMS-induced depressive-like behavior, including the total number of squares crossed and the frequency of rearing in the open field test, the immobility time in the tail suspension test and the forced swimming test. Furthermore, silibinin treatment increased the levels of brain-derived neurotrophic factor (BDNF), serotonin (5-HT) and norepinephrine (NE) in the prefrontal cortex and hippocampus. Our study provides new insight into the protective effects of silibinin on the depressive status of CUMS mice, specifically by improving neuroplasticity and neurotransmission.
Animals ; Brain-Derived Neurotrophic Factor ; Depression ; Hindlimb Suspension ; Hippocampus ; Mice* ; Milk Thistle ; Neuronal Plasticity ; Norepinephrine ; Physical Exertion ; Prefrontal Cortex ; Serotonin ; Synaptic Transmission

BACKGROUNDTo find out the timing of serologic responses after illness onset and distribution of IgG antibody to SARS-CoV in SARS cases of transmission chain or non-transmission chain.

METHODSThe IgG and IgM antibodies to SARS-CoV were tested by indirect ELISA in serum samples from 301 clinically diagnosed SARS cases.

RESULTSTotally 158 SARS cases were involved in 15 chains of transmission. The positive rates of SARS-CoV IgG in those chains were 85.70%-100.00% and the overall rate was 94.30% (149/158). The chain of transmission could spread to four generations, but the SARS cases were reduced with increase of generations. There was no significant difference among positive rates of SARS-CoV IgG for generations, Chi square=5.11, P greater than 0.05. The positive rate of SARS-CoV IgG in cases who were not in chain of transmission was 12.59%(18/143) which was statistically significantly different from that of cases in chain of transmission, Chi square=199.64, P less than 0.001. During days 0-7,8-14,15-21,22-30 after onset, the cumulated positive rate of SARS-CoV IgG was 16.67%, 40.00%, 70.00% and 93.10%, respectively, then was kept at the level above 90% and lasted for 217 days. The cumulated positive rate of SARS-CoV IgM during days 0-7 after onset was the same to that of IgG. During days 8-14, 55.17% of cases had seroconversion for IgM which reached a peak (86.96%) during days 21-30. Then the rate rapidly declined.

CONCLUSIONMore than 94% of cases with SARS could produce IgG antibody when they were infected by SARS-CoV. Detecting SARS-CoV IgG could provide a diagnostic evidence for case confirmation. SARS-CoV IgG appeared as early as 7 days after onset and reached the peak at about weeks 4. Then the high rate of antibody was maintained for more than 6 months.

Antibodies, Viral ; blood ; Disease Transmission, Infectious ; Enzyme-Linked Immunosorbent Assay ; Humans ; Immunoglobulin G ; blood ; Immunoglobulin M ; blood ; SARS Virus ; immunology ; Severe Acute Respiratory Syndrome ; immunology ; transmission

Antibodies, Viral ; blood ; China ; epidemiology ; Female ; Humans ; Immunoglobulin G ; blood ; Male ; SARS Virus ; immunology ; isolation & purification ; Seroepidemiologic Studies ; Severe Acute Respiratory Syndrome ; epidemiology ; virology

OBJECTIVETo determine evaluate the effect of health-promoting lifestyle on the outcomes of suboptimal health status (SHS).

METHODSA prospective population cohort was conducted by consecutively enrolling 5676 college students who took routine health examination from March to May 2013. The participants were assessed for baseline health status and lifestyle and 2972 participants with SHS were followed up for 1.5 years. Exposure was defined as an unhealthy lifestyle. The health-promoting lifestyle was assessed via the Health-promoting Lifestyle Profile (HPLP-II). SHS was evaluated using the medical examination report and Sub-health Measurement Scale V1.0 (SHMS V1.0).

RESULTSAmong the 2972 students with SHS, 422 showed recovery of the healthy status at 1.5 year follow-up, 579 showed progression into disease conditions, and 1971 remained in SHS. The participants with recovered health status presented with significant increase of SHMS V1.0 scores by 8.75∓6.95 points compared to the baseline assessment (t=-2.14, P=0.000) in physiological, psychological and social dimensions; they also showed a marked improvement of HPLP-II scores by 14.73 points in 6 dimensions (t=-15.34, P=0.000). Multivariable regression analyses with adjusted demographic variables revealed a significant association between health status and health-promoting lifestyle (P<0.05). Compared with a healthy lifestyle (minimal exposure), a 'poor' lifestyle (the highest level of exposure) was associated with a 30 times higher risk of developing SHS (OR: 30.598, 95% CI: 3.928-238.331), while a 'moderate' lifestyle (a relatively high-level exposure) had a 24 times higher risk of SHS (OR: 23.988, 95%CI: 14.695-39.158), and a suboptimal lifestyle had a nearly 4 times higher risk of SHS (OR: 4.306, 95%CI: 2.767-6.702).

CONCLUSIONs SHS may evolve into either a healthy or a disease condition. A unhealthy lifestyle is the important risk factor contributing to the progression of SHS into a disease condition, suggesting the importance of intervention of unhealthy lifestyles in promoting good health.

Health Behavior ; Health Status ; Healthy Lifestyle ; Humans ; Prospective Studies ; Regression Analysis ; Risk Factors ; Students

Previous studies proposed that the synergistic effect of fibroblast growth factor-21 (FGF-21) and insulin may be due to the improvement of insulin sensitivity by FGF-21. However, there is no experimental evidence to support this. This study was designed to elucidate the mechanism of synergistic effect of FGF-21 and insulin in the regulation of glucose metabolism. The synergistic effect of FGF-21 and insulin on regulating glucose metabolism was demonstrated by investigating the glucose absorption rate by insulin resistance HepG2 cell model and the blood glucose chances in type 2 diabetic db/db mice after treatments with different concentrations of FGF-21 or/and insulin; The synergistic metabolism was revealed through detecting GLUT1 and GLUT4 transcription levels in the liver by real-time PCR method. The experimental results showed that FGF-21 and insulin have a synergistic effect on the regulation of glucose metabolism. The results of real-time PCR showed that the effective dose of FGF-21 could up-regulate the transcription level of GLUT1 in a dose-dependent manner, but had no effect on the transcription level of GLUT4. Insulin (4 u) alone could up-regulate the transcription level of GLUT4, yet had no effect on that of GLUT1. Ineffective dose 0.1 mg kg(-1) FGF-21 alone could not change the transcription level of GLUT1 or GLUT4. However, when the ineffective dose 0.1 mg x kg(-1) FGF-21 was used in combination with insulin (4 u) significantly increased the transcription levels of both GLUT1 and GLUT4, the transcription level of GLUT1 was similar to that treated with 5 time concentration of FGF-21 alone; the transcription level of GLUT4 is higher than that treated with insulin (4 u) alone. In summary, in the presence of FGF-21, insulin increases the sensitivity of FGF-21 through enhancing GLUT1 transcription. Vice versa, FGF-21 increases the sensitivity of insulin by stimulating GLUT4 transcription in the presence of insulin. FGF-21 and insulin exert a synergistic effect on glucose metabolism through mutual sensitization.
Animals ; Blood Glucose ; Diabetes Mellitus, Experimental ; metabolism ; Drug Synergism ; Fibroblast Growth Factors ; pharmacology ; Glucose ; metabolism ; Glucose Transporter Type 1 ; metabolism ; Glucose Transporter Type 4 ; metabolism ; Hep G2 Cells ; Humans ; Insulin ; pharmacology ; Insulin Resistance ; Liver ; metabolism ; Mice

PURPOSE: This study differentiates patient and care delays of breast cancer and explores the related factors as well as the associations with the prognosis in Guangzhou, a southern city of China. METHODS: A cohort of female incident breast cancer patients (n=1,551) was recruited from October 2008 to March 2012 and followed up until January 1, 2016 (n=1,374) in the affiliated hospitals of Sun Yat-sen University. The factors associated with patient and care delays were analyzed with multivariable logistic models. Cox proportional hazards regression models were constructed to estimate the impacts of the delays on the prognosis. RESULTS: There were 40.4% patient delay (≥3 months) and 15.5% care delay (≥1 month). The patient delay, but not the care delay, was significantly related to the clinical stage and consequently worsened the prognosis of breast cancer (hazard ratio, 1.45; 95% confidence interval, 1.09 to 1.91 for progression-free survival). The factors related to an increased patient delay included premenopausal status, history of benign breast disease, and less physical examination. CONCLUSION: Patient delay was the main type of delay in Guangzhou and resulted in higher clinical stage and poor prognosis of breast cancer. Screening for breast cancer among premenopausal women may be an effective way to reduce this delay.
Breast Diseases ; Breast Neoplasms ; Breast ; China ; Cohort Studies ; Female ; Humans ; Logistic Models ; Mass Screening ; Physical Examination ; Prognosis ; Solar System

Objective: To evaluate the efficacy and safety of a domestic human plasma derived coagulation Factor Ⅸ concentrate (pd-FⅨ) in patients with hemophilia B. Methods: The study was a multicenter, open-label and single-arm study. The efficacy of pd-F Ⅸ was evaluated by objective performance criteria. The doses of pd-FⅨ were calculated according to the bleeding symptom and disease severity. The infusion efficiency of pd-FⅨ and improvement of bleeding symptoms were measured at 30 minutes and (24±4) h after the first infusion, respectively. Adverse events were recorded. Viral infection and FⅨ inhibitor were detected 90 d after the first infusion. Results: All 36 subjects with hemophilia B were enrolled in the study. The median age of these patients was 31 years old and the median injection doses were 4 (1-17) times. The hemostatic effect of 27/36 (75.00%) and 9/36 (25.00%) acute bleeding events were rated as "excellent" and "better" , respectively. The recovery rate was 111.92% (65.55%-194.28%) at 30 minutes after infusion of FⅨ. There was no adverse event related to FⅨ. No reactivation of HBV, HCV or HIV and FⅨ inhibitor was detected at 90-104 d after the first FⅨ infusion. Conclusion: This domestically made human plasma derived FⅨ concentrate is safe and effective in the treatment of acute bleeding in patients with hemophilia B. Clinical trial registration: China food and Durg Administration, 2016L08027.
Adult ; China ; Factor IX ; Hemophilia A ; Hemophilia B/therapy* ; Hemorrhage ; Humans ; Plasma