104 research outputs found

    Use of an Observational Coding System with Families of Adolescents: Psychometric Properties among Pediatric and Healthy Populations

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    Objective: To examine reliability and validity data for the Family Interaction Macro-coding System (FIMS) with adolescents with spina bifida (SB), adolescents with type 1 diabetes mellitus (T1DM), and healthy adolescents and their families.Methods: Sixty-eight families of children with SB, 58 families of adolescents with T1DM, and 68 families in a healthy comparison group completed family interaction tasks and self-report questionnaires. Trained coders rated family interactions using the FIMS.Results: Acceptable interrater and scale reliabilities were obtained for FIMS items and subscales. Observed FIMS parental acceptance, parental behavioral control, parental psychological control, family cohesion, and family conflict scores demonstrated convergent validity with conceptually similar self-report measures.Conclusions: Preliminary evidence supports the use of the FIMS with families of youths with SB and T1DM and healthy youths. Future research on overall family functioning may be enhanced by use of the FIMS

    Surgical management of glaucoma in Fuchs uveitis syndrome: Trabeculectomy or Ahmed glaucoma valve

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    Purpose: To evaluate the outcome of trabeculectomy versus Ahmed glaucoma valve (AGV) surgery in patients with Fuchs uveitis Syndrome (FUS). Methods: Twenty-eight eyes with uncontrolled glaucoma and at least 6 months of follow-up were enrolled. In 16 eyes trabeculectomy and in 12 eyes AGV implant were performed. The primary outcome measure was surgical success defined as 5 < intraocular pressure (IOP) Γ’οΏ½Β€ 21 mmHg (criterion A) and 5 < IOP Γ’οΏ½Β€ 16 mmHg (criterion B), with at least 20 reduction in IOP, either with no medication (complete success) or with no more than preoperative medications (qualified success). The sum of complete and qualified success was defined as cumulative success. Results: The mean age of the patients in the trabeculectomy group and the AGV group was 44.92 ± 9.02 and 45.76 ± 7.10 years, respectively (P = 0.79). The mean duration of follow-up was 23.06 ± 12.03 months in the trabeculectomy group and 22.83 ± 13.63 months in the AGV group (P = 0.96). The baseline mean IOP in trabeculectomy was 26.81 ± 6.69 mmHg which decreased to 11.61 ± 4.15 mmHg at last visit (P < 0.001). In the AGV group, mean IOP was 31.41 ± 6.76 at baseline that changed to 22.41 ± 5.09 at last visit (P = 0.005). According to criterion A, cumulative success rates were 100 and 91 at 6 months and 76 and 9 at 36 months in the trabeculectomy and the AGV group, respectively. Cumulative success rates at 6 months were 93 and 58 and 65 and 7 at 36 months according to criterion B in the trabeculectomy and the AGV group, respectively. Kaplan-Meier survival analysis revealed a significant association between surgical method and cumulative success rate over 36 months (based on criteria A: P = 0.02, and based on criteria B: P = 0.007). Conclusion: The success rate of trabeculectomy was higher than AGV in the surgical management of glaucoma in FUS during a medium-term follow-up. © 2018 Iranian Society of Ophthalmolog

    Amino Acid Features of P1B-ATPase Heavy Metal Transporters Enabling Small Numbers of Organisms to Cope with Heavy Metal Pollution

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    Phytoremediation refers to the use of plants for extraction and detoxification of pollutants, providing a new and powerful weapon against a polluted environment. In some plants, such as Thlaspi spp, heavy metal ATPases are involved in overall metal ion homeostasis and hyperaccumulation. P1B-ATPases pump a wide range of cations, especially heavy metals, across membranes against their electrochemical gradients. Determination of the protein characteristics of P1B-ATPases in hyperaccumulator plants provides a new opportuntity for engineering of phytoremediating plants. In this study, using diverse weighting and modeling approaches, 2644 protein characteristics of primary, secondary, and tertiary structures of P1B-ATPases in hyperaccumulator and nonhyperaccumulator plants were extracted and compared to identify differences between proteins in hyperaccumulator and nonhyperaccumulator pumps. Although the protein characteristics were variable in their weighting, tree and rule induction models; glycine count, frequency of glutamine-valine, and valine-phenylalanine count were the most important attributes highlighted by 10, five, and four models, respectively. In addition, a precise model was built to discriminate P1B-ATPases in different organisms based on their structural protein features. Moreover, reliable models for prediction of the hyperaccumulating activity of unknown P1B-ATPase pumps were developed. Uncovering important structural features of hyperaccumulator pumps in this study has provided the knowledge required for future modification and engineering of these pumps by techniques such as site-directed mutagenesis

    How reliable is the lacrimal scintigraphy report? An inter-observer agreement and reliability study

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    AIM: To assess the inter-observer agreement and reliability as well as intra-observer repeatability for lacrimal scintigraphy (LS) reports with and without considering the irrigation test results. Γ’οΏ½οΏ½ METHODS: A prospective, observational, cross sectional study. Two masked clinicians (lacrimal surgeon and nuclear medicine specialist) independently reported 100 LS images (50 patients of >6 years of age with unilateral anophthalmic socket) in a university hospital. The lacrimal surgeon performed a diagnostic irrigation test and repeated the report of the same LS images 2y after the first report (intra-observer agreement). A weighted Kappa analysis was performed to determine inter-observer agreement and reliability as well as intra-observer repeatability for the type (normal, partial and complete obstruction) and location (presac, preduct, and intraduct) of the obstruction. Subgroup analysis was also performed with consideration of irrigation test results. Γ’οΏ½οΏ½ RESULTS: A significantly moderate agreement was found between lacrimal surgeon and nuclear medicine specialist for both the type (Kappa=0.55) and location (Kappa=0.48) of obstruction. Agreement values were higher for the type (Kappa=0.61 vs 0.41) and location (Kappa=0.56 vs 0.31) of obstruction in cases with normal than abnormal irrigation test. Strong and significant intra-observer (lacrimal surgeon) repeatability was found for both the type (Kappa=0.66) and location (Kappa=0.69) of obstruction. LS showed no to slight reliability based on irrigation test. Γ’οΏ½οΏ½ CONCLUSION: A moderate agreement is found between lacrimal surgeon and nuclear medicine specialist regarding the interpretation of LS suggesting the importance of consensus groups among nuclear medicine specialists and lacrimal surgeons to create a common language for interpretation of LS. Intra-observer repeatability is strong for the lacrimal surgeon. © 2019, International Journal of Ophthalmology (c/o Editorial Office). All rights reserved

    Effect of subconjunctival Bevacizumab injection on the outcome of Ahmed glaucoma valve implantation: A randomized control trial

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    Importance: The effect of subconjunctival Bevacizumab injection on the outcome of Ahmed glaucoma valve (AGV) implantation. Background: Evaluation of efficacy and safety of subconjunctival Bevacizumab injection adjunctive to AGV implantation. Design: Prospective and randomized clinical trial. Participants: Fifty eyes of 50 patients with diagnosis of glaucoma that were candidate for AGV surgery were included. Methods: In 25 eyes, conventional AGV surgery (group 1) and in 25 eyes AGV surgery with subconjunctival Bevacizumab (group 2) was performed by block randomization Main Outcome Measures: The primary outcome measure was surgical success. Outcome measures were compared at postoperative month 3, 6 and 12. Results: Mean age of patients was 58.76 ± 12.11 and 51.36 ± 15.44 years in group 1 and 2 respectively (P = 0.06). Mean intraocular pressure (IOP) at baseline was 24.88± 7.62mmHg in group 1 and 27.52± 8.57mmHg in group 2 which decreased to15.4 ± 4.4 mmHg in group 1 and 13.42± 2.9 mmHg in group 2 (P < 0.00) at last follow up. Surgical success was defined in two level: postoperative IOP Γ’οΏ½Β€21mmHg with at least 20 reduction in IOP (Criterion A), either with no medication (complete success) or with no more than two medications (qualified success) and criterion B with the same definition but the IOP Γ’οΏ½Β€18mmHg The cumulative success according to criterion A and B was 77.8, 72.2 in group 1 and 89.5 in group 2, respectively, at the end of follow-up. Conclusions and Relevance: Subconjunctival injection of Bevacizumab adjunctive to AGV implantation leads to higher success rate compared with AGV alone in one year follow-up. © 2018 Royal Australian and New Zealand College of Ophthalmologists

    Temporal Artery Biopsy for Diagnosing Giant Cell Arteritis: A Ten-year Review

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    Purpose: To assess the use of temporal artery biopsy (TAB) in diagnosing giant cell arteritis (GCA) and to evaluate patientsΓ’οΏ½οΏ½ clinical and laboratory characteristics. Methods: We conducted a retrospective chart review of patients with suspected GCA who underwent TAB and had complete workup in a tertiary center in Iran between 2008 and 2017. The 2016 American College of Rheumatology (ACR) revised criteria for early diagnosis of GCA were used for each patient for inclusion in this study. Results: The mean age of the 114 patients in this study was 65.54 ± 10.17 years. The mean overall score according to the 2016 ACR revised criteria was 4.17 ± 1.39, with 5.82 ± 1.28 for positive biopsies and 3.88 ± 1.19 for negative biopsies (p <0.001). Seventeen patients (14.9) had a positive biopsy. Although the mean post-fixation specimen length in the biopsy-positive group (18.35 ± 6.9 mm) was longer than that in the biopsy-negative group (15.62 ± 8.4 mm), the difference was not statistically significant (P = 0.21). There was no statistically significant difference between the groups in terms of sex, serum hemoglobin, platelet count, and erythrocyte sedimentation rate. There were statistically significant differences between the biopsy-negative and biopsy-positive groups with respect to patientsΓ’οΏ½οΏ½ age and C-reactive protein level (P < 001 and P = 0.012, respectively). Conclusion: The majority of TABs were negative. Reducing the number of redundant biopsies is necessary to decrease workload and use of medical services. We suggest that the diagnosis of GCA should be dependent on clinical suspicion. © 2020 JOURNAL OF OPHTHALMIC AND VISION RESEARC

    At-Risk and Recent-Onset Type 1 Diabetic Subjects Have Increased Apoptosis in the CD4+CD25+(high) T-Cell Fraction

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    BACKGROUND: In experimental models, Type 1 diabetes T1D can be prevented by adoptive transfer of CD4+CD25+ FoxP3+ suppressor or regulatory T cells. Recent studies have found a suppression defect of CD4+CD25+(high) T cells in human disease. In this study we measure apoptosis of CD4+CD25+(high) T cells to see if it could contribute to reduced suppressive activity of these cells. METHODS AND FINDINGS: T-cell apoptosis was evaluated in children and adolescent 35 females/40 males subjects comprising recent-onset and long-standing T1D subjects and their first-degree relatives, who are at variable risk to develop T1D. YOPRO1/7AAD and intracellular staining of the active form of caspase 3 were used to evaluate apoptosis. Isolated CD4+CD25+(high) and CD4+CD25βˆ’ T cells were co-cultured in a suppression assay to assess the function of the former cells. We found that recent-onset T1D subjects show increased apoptosis of CD4+CD25+(high) T cells when compared to both control and long-standing T1D subjects p<0.0001 for both groups. Subjects at high risk for developing T1D 2–3Ab+ve show a similar trend p<0.02 and p<0.01, respectively. On the contrary, in long-standing T1D and T2D subjects, CD4+CD25+(high) T cell apoptosis is at the same level as in control subjects pβ€Š=β€ŠNS. Simultaneous intracellular staining of the active form of caspase 3 and FoxP3 confirmed recent-onset FoxP3+ve CD4+CD25+(high) T cells committed to apoptosis at a higher percentage 15.3Β±2.2 compared to FoxP3+ve CD4+CD25+(high) T cells in control subjects 6.1Β±1.7 p<0.002. Compared to control subjects, both recent-onset T1D and high at-risk subjects had significantly decreased function of CD4+CD25+(high) T cells pβ€Š=β€Š0.0007 and pβ€Š=β€Š0.007, respectively. CONCLUSIONS: There is a higher level of ongoing apoptosis in CD4+CD25+(high) T cells in recent-onset T1D subjects and in subjects at high risk for the disease. This high level of CD4+CD25+(high) T-cell apoptosis could be a contributing factor to markedly decreased suppressive potential of these cells in recent-onset T1D subjects

    Causes of blindness and vision impairment in 2020 and trends over 30 years, and prevalence of avoidable blindness in relation to VISION 2020 : the right to sight : an analysis for the Global Burden of Disease Study

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    Background: Many causes of vision impairment can be prevented or treated. With an ageing global population, the demands for eye health services are increasing. We estimated the prevalence and relative contribution of avoidable causes of blindness and vision impairment globally from 1990 to 2020. We aimed to compare the results with the World Health Assembly Global Action Plan (WHA GAP) target of a 25% global reduction from 2010 to 2019 in avoidable vision impairment, defined as cataract and undercorrected refractive error.Methods: We did a systematic review and meta-analysis of population-based surveys of eye disease from January, 1980, to October, 2018. We fitted hierarchical models to estimate prevalence (with 95% uncertainty intervals [UIs]) of moderate and severe vision impairment (MSVI; presenting visual acuity from <6/18 to 3/60) and blindness (<3/60 or less than 10Β° visual field around central fixation) by cause, age, region, and year. Because of data sparsity at younger ages, our analysis focused on adults aged 50 years and older.Findings: Global crude prevalence of avoidable vision impairment and blindness in adults aged 50 years and older did not change between 2010 and 2019 (percentage change βˆ’0Β·2% [95% UI βˆ’1Β·5 to 1Β·0]; 2019 prevalence 9Β·58 cases per 1000 people [95% IU 8Β·51 to 10Β·8], 2010 prevalence 96Β·0 cases per 1000 people [86Β·0 to 107Β·0]). Age-standardised prevalence of avoidable blindness decreased by βˆ’15Β·4% [–16Β·8 to βˆ’14Β·3], while avoidable MSVI showed no change (0Β·5% [–0Β·8 to 1Β·6]). However, the number of cases increased for both avoidable blindness (10Β·8% [8Β·9 to 12Β·4]) and MSVI (31Β·5% [30Β·0 to 33Β·1]). The leading global causes of blindness in those aged 50 years and older in 2020 were cataract (15Β·2 million cases [9% IU 12Β·7–18Β·0]), followed by glaucoma (3Β·6 million cases [2Β·8–4Β·4]), undercorrected refractive error (2Β·3 million cases [1Β·8–2Β·8]), age-related macular degeneration (1Β·8 million cases [1Β·3–2Β·4]), and diabetic retinopathy (0Β·86 million cases [0Β·59–1Β·23]). Leading causes of MSVI were undercorrected refractive error (86Β·1 million cases [74Β·2–101Β·0]) and cataract (78Β·8 million cases [67Β·2–91Β·4]).Interpretation: Results suggest eye care services contributed to the observed reduction of age-standardised rates of avoidable blindness but not of MSVI, and that the target in an ageing global population was not reached
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