Time filter

Source Type

Wang Z.,Shandong University | Li M.,Jiaozhou Central Hospital of Qingdao | Li L.,Shandong University | Sun H.,Shandong University | Lin X.Y.,Shandong University
Genetics and Molecular Research | Year: 2015

Mutations in the CYP1B1 gene were detected in primary open-angle glaucoma (POAG) patients. However, the association between these mutations and the incidence of POAG remains to be elucidated. Here, we have conducted a meta-analysis to analyze this correlation, using relevant studies obtained from an extensive search of various electronic databases, including EMBase, Web of Science, and PubMed. The extracted studies were selected for the meta-analysis based on the inclusion and exclusion criteria. The quality of each included study was assessed by the Newcastle-Ottawa scale (NOS), and the I2 value was calculated to evaluate the heterogeneity between studies. The combined effect size was presented as the odds ratio (OR), and confidence intervals (CI) were used to assess the association between POAG and CYP1B1 mutations. Eight studies, each with a high NOS score, were included in the analysis. Compared to the mutant allele, the wild-type allele of the rs180040 polymorphism in POAG patients showed a 12% decrease in OR (OR = 0.88, 95%CI = 0.76- 1.00); also, the wild-type allele of rs1056827 showed a 23% decrease in OR of the incidence of POAG (OR = 0.77, 95%CI = 0.60-0.99). However, the latter result was controversial. Polymorphisms at rs1056836, rs10012, and rs1056837 were not correlated with the incidence of POAG (using any evaluation model). In conclusion, three of the tested SNPs in the CYP1B1 gene were correlated with POAG; however, the SNPs rs180040 and rs1056827 showed an association with risk of POAG. These results must be further validated with larger-scale evaluations. © FUNPEC-RP.

Qiu J.,Dezhou Peoples Hospital | Qiu J.,Shandong University | Shi P.,Shandong Provincial Qianfoshan Hospital | Mao W.,Jiaozhou Central Hospital of Qingdao | And 3 more authors.
BMC Anesthesiology | Year: 2015

Background: At present, sevoflurane inhalation anesthesia used on infants is well-known. But long-time exposure to inhalation anesthetic could cause neurologic disorder, especially nerve degeneration in infant and developing brain. The central nervous system degeneration of infants could affect the memory and cognitive function. γ-Aminobutyric acid (GABA) is a known inhibitory neurotransmitter in central nervous system. Inhalation anesthetic sevoflurane may activate GABAA receptor to inhibit central nervous system, leading to apoptosis of neural degeneration, cognitive dysfunction in the critical period of brain development. Methods: Neural stem cells were derived from Wistar embryos, cultured in vitro. Third generation of neural stem cells were randomly divided into four groups according to cultured suspension: Sevoflurane group (Group S), GABAA receptor antagonists, Bicuculline group (Group B), Sevoflurane +GABAA receptor antagonists, Bicuculline group (Group S+B), dimethyl sulphoxide (DMSO) group (Group D). Group B and Group D did not receive sevoflurane preconditioning. Group S and Group S+B were pretreated with 1 minimum alveolar concentration (MAC) sevoflurane for 0h, 3h, 6h, and 12h. Group S+B and Group B were pretreated with bicuculline (10 uM). Group D was treated with DMSO (10 uL/mL). After treatments above, all groups were cultured for 48h. Then we measured the cells viability by Cell Counting Kit (CCK-8) assay, cytotoxicity by Lactate Dehydrogenase (LDH) assay, apoptosis ratio with Annexin V/propidium iodide (PI) staining by flow cytometry, and the expression of GABAAR, anti-apoptotic protein Bcl-2, pro-apoptotic protein Bax and Caspase-3 by western blotting. Results: After exposing to sevoflurane for 0h, 3h, 6h, and 12h with 1MAC, we found that cell viability obviously decreased and cytotoxicity increased in time-dependent way. And Annexin V/PI staining indicated increased apoptosis ratio by flow cytometry. The protein level of GABAA receptor, pro-apoptotic protein Bax and apoptosis protein Caspase-3 increased; while anti-apoptotic protein Bcl-2 decreased. And bicuculline could reverse all detrimental results caused by sevoflurane. Conclusion: Sevoflurane can inhibit the central nervous system by activating GABAA, resulting in apoptosis of neural stem cells, thus leading to the NSCs degeneration. © Qiu et al.; licensee BioMed Central.

Han S.,Shandong University | Wang M.,Jiaozhou Central Hospital of Qingdao | Liu B.,Shandong University | Yu J.,Shandong University
Clinical and Translational Oncology | Year: 2016

Objective: The aim of this study was to evaluate the efficacy and safety of a consecutive series of elderly patients with primary central nervous system lymphoma (PCNSL) treated with single-agent pemetrexed without radiotherapy or intrathecal chemotherapy. Methods: Twelve histologically confirmed newly diagnosed PCNSL patients older than 65 years were studied between 2008 and 2013. An induction chemotherapy was initially given (pemetrexed 600 mg/m2 on day 1, every 3 weeks). Patients achieving a complete, partial response or stable disease proceeded to a maintenance phase (up to 6 cycles). Patients with progressive/recurrent disease (PD) were treated with whole brain radiotherapy on an individual basis. Results: Four patients presented complete response, six patients showed partial response and two patients presented progressive disease. The median progression-free survival (PFS) was 9.0 months [95 % confidence interval (CI) 2.0–45.3] and the median overall survival was 19.5 months (95 % CI 5.0–45.3). Adverse events included leukocytopenia, anemia, fatigue, rash and vomiting. No neurotoxicity or treatment-related death was observed. The estimated 1-year and 2-year survival rate was 66.7 and 41.7 %, respectively. Conclusions: Our efficacy results demonstrate that the single-agent pemetrexed was feasible, active and well tolerated in elderly patients with PCNSL. Furthermore, this single-agent regimen results in higher response rates and less toxicity comparable with other chemotherapy or radiotherapy regimens. Prospectively, controlled studies are warranted to confirm such results. © 2015, Federación de Sociedades Españolas de Oncología (FESEO).

Huang G.,Shandong University | Jiang Q.,Shandong University | Li M.,Jiaozhou Central Hospital of Qingdao | Lu Y.,Shandong University | Wang Z.,Shandong University
International Journal of Clinical and Experimental Medicine | Year: 2015

Purpose: This study was designed to explore the characteristics and therapy of cytomegalovirus retinitis (CR) in patients diagnosed with acquired immunodeficiency syndrome (AIDS). Methods: A total of 67 AIDS patients (78 eyes) with CR findings of were collected from January 2009 to January 2013. The correlation between CR, cellular immunity, risk factor, clinical characteristics, treatment and prognosis of CR was assessed. The incidence of CR in different CD4+T lymphocyte count groups was analyzed. Results: Among all participants, 58 were male and 9 females, aged from 18-60 years, (38±9) years on average. CD4+ T lymphocyte count of CR patients ranged from 0-141 cells/μl and < 50 cells/μl in 81.3% of cases. CR was the primary manifestation in 10.2%, retinal lesions in 25.1%, best corrected visual acuity (BCVA) < 0.3 in 54% of AIDS patients. Retinal necrosis was involved near the posterior pole in 62.5% of CR patients. The visual acuity of 60 (47.6%) eyes was improved after treatment and 94.1% cases were cured within 3 months. Anti-CMV treatments including induction and maintenance of ganciclovir or foscarnet were discontinued when CD4+T lymphocyte count was > 150 cells/μl for three consecutive months. Complicated cataract, retinal detachment and immune reconstitution uveitis were observed in 20.5%, 12.1% and 13.1% of cases, respectively. Conclusion: Decreased CD4+T lymphocyte count is a risk factor for CR. HAART and anti-CMV therapy are efficacious treatment of CR. Conventional eye examinations should be conducted to early diagnose CR or other opportunistic infections in all AIDS patients. © 2015, E-Century Publishing Corporation. All rights reserved.

Hu Y.,Southern Medical University | Ying M.,Fujian Provincial Cancer Hospital | Huang C.,Fujian Medical University | Wei H.,Sun Yat Sen University | And 10 more authors.
Surgical Endoscopy and Other Interventional Techniques | Year: 2014

Background: Laparoscopy-assisted gastrectomy (LAG) has been indicated to be safe, feasible, and oncologically efficacious for the treatment of early gastric cancer by both retrospective and prospective studies. Although some reports have demonstrated that LAG was also a safe and technically feasible procedure for advanced gastric cancer (AGC), its oncologic outcomes have not yet been confirmed in a multicenter, large-scale study. The aim of this study was to evaluate the oncologic outcomes of LAG for AGC on a multicenter basis in China. Methods: Data of 1,184 consecutive patients with locally AGC who underwent LAG with curative intent between February 2003 and December 2009 were collected from the Chinese Laparoscopic Gastrointestinal Surgery Study group database and retrospectively analyzed. Survival rates were estimated by the Kaplan-Meier method. Risk factors for recurrence and survival were evaluated by Cox regression models. Results: Postoperatively, 121 patients (10.2 %) experienced complications, and 1 patient died (0.1 %). Median follow-up was 12 months. Recurrence was observed in 185 patients (16.7 %), including hematogenous (31 patients), peritoneal (52), locoregional (25), distant lymph node (LN) (8), mixed (63), and uncertain (6) recurrences. The cumulative 3-year overall survival and disease-free survival rates were 75.3 and 69.0 %, respectively. The 3-year overall survival and disease-free survival rates were 89.7 and 88.9 % for stage I tumors, 85.0 and 77.0 % for stage II, 60.5 and 59.3 % for stage III. Independent risk factors for recurrence were tumor size > 40 mm, intraoperative blood transfusion, and advanced tumor stage. For survival, age > 65 years, tumor size > 40 mm, and advanced tumor stage were independent risk factors. Conclusions: In addition to being safe and technically feasible, LAG for locally AGC could also yield acceptable short-term oncologic outcomes. © 2014 Springer Science+Business Media.

Discover hidden collaborations