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101.
Mills J Safavi A Skarsgard ED;Canadian Pediatric Surgery Network 《Journal of pediatric surgery》2012,47(5):842-846
PurposeChylothorax is a recognized complication of congenital diaphragmatic hernia (CDH) repair. Our aims were to describe the frequency and outcomes of chylothorax and to seek predictors of chylothorax occurrence within a population-based CDH cohort.MethodsRecords for patients with CDH born between 2006 and 2010 were abstracted from a national database and were compared according to presence/absence of postrepair chylothorax. Univariate, and where appropriate, multivariate analyses were performed for group comparisons and chylothorax outcome prediction.ResultsOf 243 newborns with CDH surviving to repair, 11 (4.5%) developed a chylothorax. All were managed nonoperatively. Factors predictive of chylothorax outcome on multivariate analysis included need for preoperative transfusion (odds ratio, 13.2; 95% confidence interval, 2.1-83.7; P = .006) and preoperative high-frequency oscillatory ventilation (odds ratio, 7.1; 95% confidence interval, 1.6-31.2; P = .01). Preoperative vasopressor use was significant on univariate analysis only. The groups were comparable for survival, length of stay, and duration of ventilation, but chylothorax patients had prolonged total parenteral nutrition (53 vs 21 days, P = .006) and more central line days (46 vs 24 days, P = .03).ConclusionsOur data suggest that severity of preoperative cardiopulmonary derangement and not anatomical or technical factors predicts chylothorax occurrence after CDH repair. 相似文献
102.
Bo-Young Hong Tae-Kwon Lee Sang-Min Lim Seok Woo Chang Joonhong Park Seung Hyun Han Qiang Zhu Kamran E. Safavi Ashraf F. Fouad Kee Yeon Kum 《Journal of endodontics》2013
Introduction
The aim of this study was to investigate the bacterial community profile of intracanal microbiota in primary and persistent endodontic infections associated with asymptomatic chronic apical periodontitis by using GS-FLX Titanium pyrosequencing. The null hypothesis was that there is no difference in diversity of overall bacterial community profiles between primary and persistent infections.Methods
Pyrosequencing analysis from 10 untreated and 8 root-filled samples was conducted.Results
Analysis from 18 samples yielded total of 124,767 16S rRNA gene sequences (with a mean of 6932 reads per sample) that were taxonomically assigned into 803 operational taxonomic units (3% distinction), 148 genera, and 10 phyla including unclassified. Bacteroidetes was the most abundant phylum in both primary and persistent infections. There were no significant differences in bacterial diversity between the 2 infection groups (P > .05). The bacterial community profile that was based on dendrogram showed that bacterial population in both infections was not significantly different in their structure and composition (P > .05).Conclusions
The present pyrosequencing study demonstrates that persistent infections have as diverse bacterial community as primary infections. 相似文献103.
Arianna Fallacara Laura Busato Michele Pozzoli Maliheh Ghadiri Hui Xin Ong Paul M. Young Stefano Manfredini Daniela Traini 《Journal of pharmaceutical sciences》2019,108(9):2964-2971
The pathogenesis and progression of several lung disorders is propagated by inflammatory and oxidative processes, which can be controlled by adjunctive inhaled therapies. The present study aimed to develop an inhalable dry powder formulation consisting of co-spray-dried urea-crosslinked hyaluronic acid and sodium ascorbyl phosphate (SD HA-CL–SAP), a novel combination which was recently shown to possess anti-inflammatory, antioxidant, and wound healing properties. Native HA and SAP were co-spray dried (SD HA–SAP) and evaluated as control formulation. Yield (Y%) and encapsulation efficiency (EE%) were 67.0 ± 4.8% and 75.5 ± 7.2% for SD HA–SAP, 70.0 ± 1.5% and 66.5 ± 5.7% for SD HA-CL–SAP, respectively. Both formulations were shown to be suitable for lung delivery in terms of morphology, particle size (median volumetric diameter ~ 3.4 μm), physical and thermal stability, in vitro aerosol performance - respirable fraction: 30.5 ± 0.7% for SD HA–SAP and 35.3 ± 0.3% for SD HA-CL–SAP. SAP release was investigated using Franz cells and air-interface Calu-3 cell model (>90% of SAP transported within 4 h). The innovative SD HA-CL–SAP formulation holds potential as inhalable dry powder for the treatment of inflammatory lung disorders. 相似文献
104.
105.
Regulatory mechanisms,expression levels and proliferation effects of the FUS–DDIT3 fusion oncogene in liposarcoma 下载免费PDF全文
106.
Selective depletion of CD11c+CD11b+ dendritic cells partially abrogates tolerogenic effects of intravenous MOG in murine EAE 下载免费PDF全文
Limei Wang Zichen Li Bogoljub Ciric Farinaz Safavi Guang‐Xian Zhang Abdolmohamad Rostami 《European journal of immunology》2016,46(10):2454-2466
Intravenous (i.v.) injection of a soluble myelin antigen can induce tolerance, which effectively ameliorates experimental autoimmune encephalomyelitis (EAE). We have previously shown that i.v. myelin oligodendrocyte glycoprotein (MOG) induces tolerance in EAE and expands a subpopulation of tolerogenic CD11c+CD11b+ dendritic cells (DCs) with an immature phenotype having low expression of IA and co‐stimulatory molecules CD40, CD86, and CD80. Here, we further investigate the role of tolerogenic DCs in i.v. tolerance by injecting clodronate‐loaded liposomes, which selectively deplete CD11c+CD11b+ and immature DCs, but not CD11c+CD8+ DCs and mature DCs. I.v. MOG‐induced suppression of EAE was partially, yet significantly, blocked by CD11c+CD11b+ DC depletion. While i.v. MOG inhibited IA, CD40, CD80, CD86 expression and induced TGF‐β, IL‐27, IL‐10 production in CD11c+CD11b+ DCs, these effects were abrogated after injection of clodronate‐loaded liposomes. Depletion of CD11c+CD11b+ DCs also precluded i.v. autoantigen‐induced T‐cell tolerance, such as decreased production of IL‐2, IFN‐γ, IL‐17 and numbers of IL‐2+, IFN‐γ+, and IL‐17+ CD4+ T cells, as well as an increased proportion of CD4+CD25+Foxp3+ regulatory T cells and CD4+IL‐10+Foxp3? Tr1 cells. CD11c+CD11b+ DCs, through low expression of IA and costimulatory molecules as well as high expression of TGF‐β, IL‐27, and IL‐10, play an important role in i.v. tolerance‐induced EAE suppression. 相似文献
107.
Ali Safavi Naini Jahangir Ghorbani Ebrahim Mazloom 《Indian journal of otolaryngology and head and neck surgery》2016,68(3):329-333
There are limited numbers of articles, studying combined use of antihistamines. In this study, we compare single therapy of Apo-Cetirizine with a new regimen of intermittent sequential therapy with cetirizine, loratadine and chlorpheniramine in treatment of seasonal allergic rhinitis. This randomized clinical trial was performed between April and September at the peak prevalence of seasonal allergic rhinitis. Fifty-four eligible patients diagnosed clinically to have seasonal allergic rhinitis were randomized in two groups: 24 cases in single therapy arm, received Apo-Cetirizine 10 mg tablet daily and in other arm, 30 patients received sequential regimen of cetirizine 10 mg tablet, loratadine 10 mg tablet and chlorpheniramine 4 mg tablet, one tablet each day. Major Symptom Complex Score (MSCS) and Total Symptom Complex Score (TSCS) of patients were recorded before treatment and after 30 days of treatment in two groups. The average post-treatment MSCS and TSCS in combination therapy group showed better improvement than single therapy group but difference was not statistically significant (p value = 0.053 and p value = 0.104 respectively). Combination therapy regimen was better in improvement of nasal congestion (p value = 0.006). There were no significant difference between two groups in efficacy, side effects and patient’s satisfaction. Combination therapy would be effective on a wide spectrum of symptoms with lower price and theoretically offers lower chance of tolerance and re-appearance of complaints. 相似文献
108.
Evaluation of Serologic Changes of IgG and IgM Antibodies Associated with SARS-COV-2 in Cancer Patients: A Cohort Seroprevalence Study 下载免费PDF全文
Maliheh Arabsomayyeh Noei TeymoordashMaryam TalayehBehnaz GhavamiAbdolreza JavadiBehnaz Nouri 《Asian Pacific journal of cancer prevention》2021,22(6):1667-1670
Background: While the coronavirus disease 2019 (COVID-19) pandemic spreads, there is increasing evidence to suggest the elevated risk of SARS-CoV-2 infection and following morbidity and mortality in cancer patients. Serology testing using ELISA proposes major advantages as a diagnostic and preventive tool to control the present SARS-CoV-2 outbreak. This cohort study was to determine the SARS-CoV-2 seroconversion in asymptomatic cancer patients. Methods: Patients in all age groups and with any type of cancer who have been in remission or have stable disease and received their latest anticancer therapy over 2 months ago included in the study. All patients were evaluated for COVID-19 symptoms and only asymptomatic patients were enrolled for serologic screening for SARS-CoV-2. Serum samples evaluated serologically for SARS-CoV-2 antibodies by enzyme-linked immunosorbent assay. Results: A total of 168 asymptomatic cancer patients were included in the study. Of the 168 cases with a history of cancer who were asymptomatic for Covid-19, 29 cases (17.26%) had a positive serological test. Conclusion: In conclusion, in the present study asymptomatic cancer patients revealed 17% seropositivity, approximately equal to the general population of the same age, sex, geographic region, and epidemic status. Asymptomatic infections should further be investigated and considered as playing an important role in the COVID-19 transmission chain. 相似文献
109.
D.R. Long A.L. Lihn S. Friedrich F.T. Scheffenbichler K.C. Safavi S.M. Burns J.C. Schneider S.D. Grabitz T.T. Houle M. Eikermann 《British journal of anaesthesia》2018,120(5):1090-1102
Background
The use of intraoperative opioids may influence the rate of postoperative complications. This study evaluated the association between intraoperative opioid dose and the risk of 30-day hospital readmission.Methods
We conducted a pre-specified analysis of existing registry data for 153 902 surgical cases performed under general anaesthesia at Massachusetts General Hospital and two affiliated medical centres. We examined the association between total intraoperative opioid dose (categorised in quintiles) and 30-day hospital readmission, controlling for several patient-, anaesthetist-, and case-specific factors.Results
Compared with low intraoperative opioid dosing [quintile 1, median (inter-quartile range): 8 (4–9) mg morphine equivalents], exposure to high-dose opioids during surgery [quintile 5: 32 (27–41) equivalents] is an independent predictor of 30-day readmission [odds ratio (OR) 1.15 (95% confidence interval 1.07–1.24); P<0.001]. Ambulatory surgery patients receiving high opioid doses were found to have the greatest adjusted risk of readmission (OR 1.75; P<0.001) with a clear dose–response effect across quintiles (P for trend <0.05), and were more likely to be readmitted early (postoperative days 0–2 vs 3–30; P<0.001). Opioid class modified the association between total opioid dose and readmission, with longer-acting opioids demonstrating a stronger influence (P<0.001). We observed significant practice variability across individual anaesthetists in the utilisation of opioids that could not be explained by patient- and case-specific factors.Conclusions
High intraoperative opioid dose is a modifiable anaesthetic factor that varies in the practice of individual anaesthetists and affects postoperative outcomes. Conservative standards for intraoperative opioid dosing may reduce the risk of postoperative readmission, particularly in ambulatory surgery. 相似文献110.