23 results on '"Richter SA"'
Search Results
2. A computer-assisted optimization approach for orthognathic surgery planning
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Weichel Frederic, Eisenmann Urs, Richter Sarah, Hagen Niclas, Rückschloß Thomas, Freudlsperger Christian, and Dickhaus Hartmut
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surgery planning ,gradient descent ,virtual surgery ,orthognathic surgery ,computer assisted ,3d cephalometry ,Medicine - Abstract
Orthognathic surgery is used to treat misaligned jaws in adults by repositioning them. Intervention planning has to take into account different clinical, anatomical, functional, and aesthetic parameters to determine the optimal position. Current planning systems usually present 3D surface models obtained from a CT or Cone-Beam scan of the patient. The surgeon then interactively positions the upper and lower jaw. Thus, the surgeon can manually optimize anatomical aspects but has to consider functional and aesthetic effects simultaneously, which may be error-prone. We are developing a computer-assisted planning system which generates an optimized position for both jaws based on different analyses (cephalometric, plaster model, photostat) of the head, using a gradient descent algorithm. For this purpose, landmarks are interactively identified on a 3D surface representation. The system is developed as a plugin for MITK utilizing a knowledge base realized in the sematic web standard RDFS, which is queried with SPARQL requests. In a preliminary evaluation with five different cases we compare the automatically generated planning proposal with the planning results of a maxillofacial expert (ground truth). Good general agreement is observed, although more research for the identification and development of 3D cephalometric analyses is needed.
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- 2019
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3. KPC-mediated resistance in Klebsiella pneumoniae in two hospitals in Padua, Italy, June 2009-December 2011: massive spreading of a KPC-3-encoding plasmid and involvement of non-intensive care units
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Richter Sara N, Frasson Ilaria, Franchin Elisa, Bergo Cristina, Lavezzo Enrico, Barzon Luisa, Cavallaro Antonietta, and Palù Giorgio
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KPC ,Carbapenemase ,Klebsiella pneumoniae ,Plasmid-mediated antimicrobial resistance ,Gram-negative ,Nosocomial infections ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Abstract Background Klebsiella pneumoniae carbapenemases (KPCs) producing bacteria have emerged as a cause of multidrug-resistant nosocomial infections worldwide. KPCs are plasmid-encoded enzymes capable of hydrolysing a broad spectrum of beta-lactams, including carbapenems and monobactams, therefore worryingly limiting antimicrobial treatment options. Analysis of circulating bacterial strains and KPC alleles may help understanding the route of KPC dissemination and therefore help containing the infection. Methods KPC-producing Klebsiella pneumoniae dissemination in two 1580- and 300- bed hospitals in Padua, Italy, from initial outbreak in 2009 to late 2011 was analysed. Molecular and clinical epidemiology, including bacterial strains, KPC-encoding plasmid sequences and associated resistance genes, involved hospital wards and relocation of patients were described. Routine antimicrobial susceptibility testing and MIC of carbapenems on clinical isolates were performed. Detection of resistance genes was obtained by PCR and sequencing. MLST, PFGE and ERIC were used for molecular genotyping. Plasmid analysis was obtained by digestion with restriction enzymes and deep sequencing. Results KPC-positive clinical samples were isolated from nearly 200 patients. In the initial outbreak intensive care units were almost exclusively involved, while medical, surgical and long-term wards were successively massively concerned. Analysis of KPC alleles, plasmids and bacterial sequence types (STs) indicated that during the initial outbreak KPC-3 in ST258 and KPC-2 in ST147 were each confined in one of the two surveilled hospitals. While KPC-2 dissemination was effectively contained, KPC-3 in ST258 cross-spreading was observed. The simultaneous presence of two carbapenemases, VIM-1 and KPC-2, in the same isolate was also observed in three patients. Total sequencing of plasmid content of two KPC-3 strains showed novel association of resistance plasmids. Conclusions The acquired molecular epidemiology demonstrated that 1) both acquisitions from outward sources and patient relocation within the hospitals were responsible for the observed spreading; 2) KPC-3-encoding Klebsiella pneumoniae ST258 prevailed over other strains. In addition, the described massive transfer of KPC-mediated resistance to non-intensive care units may anticipate spreading of resistance to the non-hospitalized population. Therefore, genotypic analysis alongside phenotypic identification of carbapenemase producers, also at the carriage state, is advisable to prevent and contain further carbapenemase resistance dissemination.
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- 2012
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4. Prevalence of aac(6')-Ib-cr plasmid-mediated and chromosome-encoded fluoroquinolone resistance in Enterobacteriaceae in Italy
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Frasson Ilaria, Cavallaro Antonietta, Bergo Cristina, Richter Sara N, and Palù Giorgio
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aac(6')-Ib-cr ,fluoroquinolones ,plasmid-mediated resistance ,Gram-negative ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Abstract The spread of aac(6')-Ib-cr plasmid-mediated quinolone resistance determinants was evaluated in 197 enterobacterial isolates recovered in an Italian teaching hospital. The aac(6')-Ib-cr gene was found exclusively in Escherichia coli strains. The gene was located on a plasmid which presented additional ESBL genes. Most of the clinical strains were clonally related and displayed three point mutations at the topoisomerase level which conferred high resistance to fluoroquinolones.
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- 2011
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5. Variation of modulation and expression of biomarkers associated with inflammation in bariatric surgery patients: A systematic review and meta-analysis.
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Machado CR, Braun AM, Ceolin J, Richter SA, Ribeiro MC, Santos LD, Rigo MM, de Souza APD, Padoin AV, Alves LB, Mottin CC, Drumond Costa CA, Mundstock E, Cañon-Montañez W, Ayala CO, and Mattiello R
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Background: Bariatric surgery is an effective intervention that causes a series of metabolic changes related to inflammatory processes; however, the variation of biomarkers related to these processes is not entirely understood. Our objective was to investigate the variation of modulation and expression of biomarkers associated with inflammation in patients who underwent bariatric surgery., Methods: We searched the MEDLINE (via PubMed), EMBASE (via Elsevier), Cochrane Central Register of Controlled Trials, Latin American and Caribbean Literature on Health Sciences (via virtual health library), Cumulative Index to Nursing and Allied Health Literature (via EBSCO), Web of Science core collection, and Scopus (via Elsevier) databases, and the gray literature was examined from inception to January 2022. Three pairs of reviewers performed data screening, extraction, and quality assessment independently. Meta-analysis with random effects models was used for general, subgroup, and sensitivity analyses. The I
2 statistic was used to assess heterogeneity between studies., Results: In total, 96 articles were included in this systematic review; of these, 87 studies met the criteria for the meta-analysis, involving 3,533 participants. Five biomarkers were included in the meta-analysis (tumor necrosis factor alpha; interleukin 6; leptin; interleukin 1 beta, and lipopolysaccharides). Only leptin showed a significant decrease in the first month after surgery (mean difference -20.71; [95% confidence interval: -28.10 to -13.32, P < .0001; I2 = 66.7%), with moderate heterogeneity. The 12 months after surgery showed a significant decrease in tumor necrosis factor alpha (mean difference -0.89; [95% confidence interval: -1.37 to -0.42], P = .0002; I2 = 94.7%), interleukin 6 (mean difference -1.62; [95% confidence interval: -1.95 to -1.29], P < .0001; I2 = 94.9%), leptin (mean difference -28.63; [95% confidence interval: -34.02 to -23.25], P < .0001; I2 = 92.7%), and interleukin 1 beta (mean difference -2.46; [95% confidence interval: -4.23 to -0.68], P = .006; I2 = 98.3%), all with high heterogeneity. The type of surgery did not show significant differences for the biomarkers at the first month and 12 months, and the results have not changed with high-quality studies. In the 12-month measurement, variations in tumor necrosis factor alpha and leptin were associated with body mass index., Conclusion: The findings of this meta-analysis suggest that Roux-en-Y gastric bypass and sleeve gastrectomy bariatric surgeries are associated with a significant reduction in leptin at 1 month after bariatric surgical intervention and tumor necrosis factor alpha, leptin, and interleukin 1 beta after 12 months., (Copyright © 2023 Elsevier Inc. All rights reserved.)- Published
- 2023
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6. The Influence of Parental Sleep and Experiences Related to COVID-19 on Sleep in Children and Adolescents between 2020 and 2021 in Brazil.
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Richter SA, Schilling LB, Ferraz-Rodrigues C, Camargo NF, and Nunes ML
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- Adult, Humans, Adolescent, Female, Brazil epidemiology, Surveys and Questionnaires, Sleep, COVID-19 epidemiology, Sleep Wake Disorders epidemiology
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The study aimed to evaluate the influence of parental sleep and experiences related to COVID-19 on sleep changes in children and adolescents in the period between 2020 and 2021 in Brazil and further compare the sleep of adults with and without children. This is a longitudinal web-survey study. Participants were invited to respond to a questionnaire regarding sleep characteristics, mental health issues, and work/lifestyle modifications in two waves of the pandemic (April-July 2020 and 2021). A total of 1172 adults answered both questionnaires, and 281 were dyads (parent-child/adolescent). Parent and non-parent adult responders had similar sociodemographic data, with a predominance of the female sex and self-declared white skin color prevailing along with higher levels of education in both groups. The prevalence of sleep problems in adults varied from 20.6% to 30.2% in the parent group and from 16.9% to 30.1% in non-parents. The prevalence of sleep problems in children and adolescents raised from 2020 to 2021 (respectively, 48% and 49.5%) but differences were not statistically significant. The multivariate logistic model showed in both years that changes in children's/adolescents' sleep was related to parents working at home, infected family/friends, time of exposure to COVID-19, and daytime sleep dysfunction. Our data showed that parental sleep and experiences related to COVID-19 influenced sleep changes in children and adolescents. Parents had a significant difference in daytime sleepiness compared to the group without children.
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- 2023
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7. Effects of the COVID-19 pandemic on sleep quality in children and adolescents: A systematic review and meta-analysis.
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Richter SA, Ferraz-Rodrigues C, Schilling LB, Camargo NF, and Nunes ML
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- Humans, Child, Adolescent, Sleep Quality, Pandemics, Sleep, COVID-19, Sleep Initiation and Maintenance Disorders
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We synthesise the literature on the potential influence of the COVID-19 pandemic on sleep quality in children and adolescents. The search identified studies that examined the relationship between sleep quality and disorders during the COVID-19 pandemic. It began in May 2021 and has had two updates with the last in January 2022. The databases used were LILACS, PubMed, and EMBASE. Random effects models were performed to explore heterogeneity between studies. Data were presented as continuous variables (mean value and standard deviation) to perform a meta-analysis. Twenty-nine studies from 16 countries were identified: Nine had children and eight had adolescents. The overall quality of the studies ranged from high (27.6%) to medium (65.5%) and low (6.9%). Eight studies were eligible for meta-analysis. There was an increase in sleep duration during the pandemic when compared with the previous period 0.33 (95%CI -0.07; 0.60) (p < 0.001) and late bedtime 0.78 (95%CI -0.33; 1.22) (p < 0.001). A trend toward reduced sleep efficiency was also detected 0.54 (95%CI -0.75; -0.33) p = 0.20. Parents' reports of increased use of screen media/electronic devices were associated with worse sleep quality. The results suggest an influence of the pandemic on sleep characteristics such as increased sleep duration, late bedtimes, and poor sleep quality. These alterations were related to changes in family routines during this period., (© 2022 European Sleep Research Society.)
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- 2023
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8. COVID-19 Pandemic and Autism Spectrum Disorder, Consequences to Children and Adolescents - a Systematic Review.
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Dal Pai J, Wolff CG, Aranchipe CS, Kepler CK, Dos Santos GA, Canton LAL, de Carvalho AB, Richter SA, and Nunes ML
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In this systematic review, we aimed to identify the impact of the COVID-19 pandemic on children/adolescents with a diagnosis of autism spectrum disorder (ASD). The protocol was registered on PROSPERO CRD42021255848. Articles were selected from PubMed, Embase, and LILACS according to these characteristics: patients from zero to 18 years old, exposed to the COVID-19 pandemic, impact on social communication/interaction and restricted/repetitive behavior domains. The Newcastle-Ottawa Scale was used to assess methodological quality and the risk of bias. Of the 351 articles initially identified, 26 were finally included with information on 8,610 patients. Although the studies were heterogeneous, they indicated that the pandemic-related issues experienced by patients with ASD were mostly manifested in their behavior and sleep patterns., Supplementary Information: The online version contains supplementary material available at 10.1007/s40489-022-00344-4., (© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2022, Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
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- 2022
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9. Sleep quality among parents and their children during COVID-19 pandemic.
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Wearick-Silva LE, Richter SA, Viola TW, and Nunes ML
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- Adolescent, Adult, Child, Cross-Sectional Studies, Female, Humans, Pandemics, Parents psychology, Sleep, Sleep Quality, Surveys and Questionnaires, COVID-19 epidemiology, Sleep Wake Disorders epidemiology
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Objective: To evaluate sleep characteristics of parents and their children during the COVID-19 pandemic and predictors for sleep disturbances., Methods: Cross-sectional web-based study using an online survey made available for dyads of parents and their children during the 7
th week of quarantine in southern Brazil. Parents' and adolescents' sleep were characterized using the Pittsburgh Sleep Quality Index and the Epworth Sleepiness Scale. For children aged 0-3 years parents completed the Brief Infant Sleep Questionnaire, for those aged 4-12 years the Sleep Disturbance Scale for Children. Parents also informed, subjectively, their perception about sleep habits during social distancing. Multiple regression was run to predict sleep disturbances in adults using independent variables: sex, income, education, children age, and children with sleep disturbances., Results: Data from 577 dyads showed sleep alterations in 69,8% of adults, in 58,6% of children aged 0-3 years, 33,9% in the 4-12 years range (with a predominance of disorders of initiating or maintaining sleep), and 56,6% in adolescents. Sex (female) and children with sleep disturbances were significant predictors of a sleep problem in parents (p < 0.005). Subjective perception revealed complaints related to emotional concerns such as anxiety and fear in adults and due to alterations in routine in children and adolescents., Conclusion: The present study's data showed an increased rate of sleep problems among families during quarantine both measured by validated instruments and also based on personal perception., Competing Interests: Conflicts of interest The authors declare no conflicts of interest., (Copyright © 2021 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.)- Published
- 2022
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10. Prevalence and factors associated with no intention to exclusively breastfeed for the first 6 months of life.
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Mattiello R, Kotoski A, Ayala CO, Recha CL, Quiroga CV, Machado CR, Roxo CO, Varela FH, Couto GT, Cassão G, Lopes JB, Gonçalves JIB, Silva JFD, Barh MB, Rocha ND, Albuquerque NS, Corte RAD, Bernardes R, Richter SA, Rossi T, and Santos IS
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- Cross-Sectional Studies, Female, Humans, Infant, Newborn, Mothers, Pregnancy, Prevalence, Breast Feeding, Intention
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Objective: To investigate the prevalence and factors associated with no intention to exclusively breastfeed for the first 6 months of life in a sample of women in the first 24 h postpartum during the hospital stay., Methods: Cross-sectional study with data from screening phase of a birth cohort. The proportion of mothers who did not intend to breastfeed exclusively for 6 months (primary outcome) derived from a negative response to the question "Would you be willing to try to breastfeed exclusively for the first 6 months?", in an interview conducted by previously trained interviewers. Crude and adjusted prevalence ratios (PR) with 95% confidence intervals were obtained by Poisson regression with robust variance., Results: A total of 2964 postpartum women were interviewed. The overall prevalence of mothers who did not intend to breastfeed exclusively for 6 months was 17.8% (16.4-19.1%). After adjusting for maternal age and type of pregnancy (singleton or multiple), no intention to exclusively breastfeed was higher in mothers with a monthly household income < 3 minimum wages (PR, 1.64; 1.35-1.98) and in those who intended to smoke 4-7 days/week after delivery (PR, 1.42; 1.11-1.83). The presence of significant newborn morbidity (PR, 0.32; 0.19-0.54) and intention to breastfeed up to 12 months (PR, 0.46; 0.38-0.55) had a protective effect against not intending to breastfeed exclusively for 6 months., Conclusions: Approximately 1 in every 5 mothers did not intend to breastfeed exclusively for 6 months. Strategies aimed at promoting exclusive breastfeeding should focus attention on mothers from lower economic strata and smokers., (Copyright © 2021 Sociedade Brasileira de Pediatria. Published by Elsevier Editora Ltda. All rights reserved.)
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- 2022
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11. Impact of Pain, Opioids, and the Mu-opioid Receptor on Progression and Survival in Patients With Newly Diagnosed Stage IV Pancreatic Cancer.
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Steele GL, Dudek AZ, Gilmore GE, Richter SA, Olson DA, Eklund JP, and Zylla DM
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- Adenocarcinoma mortality, Adenocarcinoma secondary, Adult, Aged, Aged, 80 and over, Disease Progression, Female, Humans, Male, Middle Aged, Neoplasm Staging, Pancreatic Neoplasms mortality, Progression-Free Survival, Retrospective Studies, Survival Rate, Adenocarcinoma metabolism, Adenocarcinoma pathology, Analgesics, Opioid pharmacology, Analgesics, Opioid therapeutic use, Cancer Pain drug therapy, Pancreatic Neoplasms metabolism, Pancreatic Neoplasms pathology, Receptors, Opioid, mu biosynthesis, Receptors, Opioid, mu drug effects
- Abstract
Objectives: Pancreatic adenocarcinoma is frequently associated with pain requiring opioid therapy. Opioids, however, have been implicated in causing tumor progression, ultimately shortening survival. We examined the impact of pain, opioid use, and the mu-opioid receptor (MOP-R) expression in tumor tissue on progression-free survival and overall survival of patients with metastatic pancreatic cancer., Methods: We identified 103 patients with metastatic pancreatic adenocarcinoma receiving chemotherapy and abstracted data from Tumor Registry, in addition to pain, opioid exposure, carbohydrate antigen 19-9 values, survival, and imaging response. MOP-R expression was evaluated using an immunohistochemistry assay. The association of variables with progression-free survival and overall survival was analyzed in univariate and multivariate models., Results: Patients with low opioid use (<5 mg oral morphine equivalent/d) survived longer than patients with high opioid (HO) use (≥5 mg oral morphine equivalent/d) (median overall survival of 315 vs. 150 d; hazard ratio [HR]=1.79; 95% confidence interval [CI]: 1.13, 2.84). This effect persisted on multivariate models (adjusted HR=2.76; 95% CI: 1.39, 5.48). Low opioid patients tended to respond better to treatment than HO patients, based on carbohydrate antigen 19-9. Patients with low MOP-R expression had longer median survival (230 vs. 193 d), though the HR was not significant (1.15; 95% CI: 0.71, 1.88). Baseline pain was not associated with outcomes., Conclusion: In patients with metastatic pancreatic adenocarcinoma, HO use is associated with decreased survival, but the severity of baseline pain and MOP-R expression score in tumor tissue does not correlate with clinical outcomes.
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- 2020
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12. Diabetes Distress Among Persons With Type 1 Diabetes.
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Powers MA, Richter SA, Ackard DM, and Craft C
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- Adolescent, Adult, Body Image, Child, Depression, Diabetes Mellitus, Type 1 blood, Diet, Diabetic psychology, Female, Glycated Hemoglobin analysis, Humans, Male, Personal Satisfaction, Psychometrics, Self Concept, Self Efficacy, Stress, Psychological blood, Surveys and Questionnaires, Young Adult, Diabetes Mellitus, Type 1 psychology, Health Behavior, Stress, Psychological psychology
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Purpose The purpose of this study is to evaluate associations between diabetes distress and a range of psychological health behaviors and concerns among persons with type 1 diabetes for the benefit of enhancing early identification and intervention of at-risk individuals. Methods Persons with type 1 diabetes (n = 268; 57.1% female, 91.0% white, 76.8% <18 years of age, average A1C 8.4%) completed the 2-item Diabetes Distress Screening Scale (DDS2) and a battery of psychometrically sound instruments measuring satisfaction with life, self-esteem, self-efficacy, depression, perfectionism, body image satisfaction, dietary restraint and eating, and shape and weight concerns. Each subscale score was compared within age groups (<18 years vs ≥18 years) between groups (diabetes distress level [low, moderate, high]) using analysis of variance (with Bonferroni correction or the Kruskal-Wallis test if the variables were not normally distributed). Results For both age groups, high diabetes distress was independently associated with greater A1C values, higher depression scores and eating, and shape and weight concerns than those with low or moderate distress. For patients <18 years of age, those with high diabetes distress scored lower on measures of satisfaction with life, self-esteem, and self-efficacy and higher on dietary restraint and several areas of perfectionism than those with low or moderate distress. Conclusions Individuals with type 1 diabetes who have high diabetes distress also report higher A1C values and poorer psychological health concerns. A brief diabetes distress questionnaire can help to identify those who need additional screening, education and support, and treatment for overall health and well-being.
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- 2017
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13. Eating disorders in persons with type 1 diabetes: A focus group investigation of early eating disorder risk.
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Powers MA, Richter SA, Ackard DM, and Cronemeyer C
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- Adaptation, Psychological, Adolescent, Adult, Body Image, Feeding and Eating Disorders psychology, Female, Focus Groups, Humans, Middle Aged, Qualitative Research, Quality of Life, Risk Factors, Young Adult, Diabetes Mellitus, Type 1 psychology, Feeding and Eating Disorders etiology
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Through focus groups, we examined the development and maintenance of an eating disorder in 16 females with type 1 diabetes and an eating disorder. The quotes and qualitative data summaries provide rich insights into understanding why those with type 1 diabetes are at increased risk for eating disorders. Content analyses revealed five themes pertinent to the dual diagnosis (feeling different, difficulty with control/coping, body image, feelings, and quality of life) of which four themes were relevant to eating disorder development. Findings support early identification of those at risk and inform interventions to mitigate development of an eating disorder., (© The Author(s) 2015.)
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- 2016
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14. Potential Clinical Impact of Abdominal Aortic Calcification on Bone Density Lateral Spine Images.
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Schousboe JT, Richter SA, and Beran MS
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- Aged, Aged, 80 and over, Atherosclerosis diagnosis, Bone Density, Female, Humans, Male, Middle Aged, Risk Factors, Aorta, Abdominal diagnostic imaging, Aortic Diseases diagnostic imaging, Calcinosis diagnostic imaging, Densitometry, Spine diagnostic imaging
- Abstract
Abdominal aortic calcification (AAC) predicts incident atherosclerotic cardiovascular disease (ASCVD) events and can be accurately identified on densitometric lateral spine images obtained at the time of bone densitometry. Our objective was to estimate the proportion of patients referred for bone densitometry who have a high level of AAC and are not already known to have ASCVD or to be at high risk for ASCVD. AAC was scored on densitometric lateral spine images of 2168 individuals blinded to clinical diagnoses or risk factors using the 24-point Framingham scale. We ascertained preexisting ASCVD diagnoses and risk factors using electronic health record data. We used the risk calculator of the American Heart Association (AHA) and the American College of Cardiology (ACC) to estimate the 10-yr risk of hard ASCVD outcomes (myocardial infarction, death caused by coronary heart disease, or nonfatal or fatal stroke). A high level of AAC (AAC score ≥5) was present in 41 (6.1%, 95% confidence interval [CI]: 4.4%-8.2%) of those aged less than 65 yr, in 253 (23.1%, 95% CI: 20.7%-25.7%) of those aged 65-74 yr, and in 153 (37.8%, 95% CI: 33.0%-42.7%) of those aged 75-80 yr. Among those aged 65-74 yr, 16.9% (95% CI: 14.7%-19.3%) had a high level of AAC and no prior clinical diagnosis of ASCVD, but only 2.4% had a high level of AAC and a predicted 10-yr risk of hard ASCVD outcomes <7.5%. AAC is common among those aged 65 yr and older who were referred for bone densitometry and had no known ASCVD, although these individuals can also be recognized as being at intermediate to high risk using the AHA-ACC ASCVD risk calculator. Further studies regarding the impact of identification of AAC on provider and patient cardiovascular disease risk management choices are warranted., (Copyright © 2016 International Society for Clinical Densitometry. Published by Elsevier Inc. All rights reserved.)
- Published
- 2016
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15. Erratum: Randomized, blinded trial of vitamin D 3 for treating aromatase inhibitor-associated musculoskeletal symptoms (AIMSS).
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Shapiro AC, Adlis SA, Robien K, Kirstein MN, Liang S, Richter SA, and Lerner RE
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- 2016
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16. Randomized, blinded trial of vitamin D3 for treating aromatase inhibitor-associated musculoskeletal symptoms (AIMSS).
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Shapiro AC, Adlis SA, Robien K, Kirstein MN, Liang S, Richter SA, and Lerner RE
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- Adult, Aged, Anastrozole, Antineoplastic Agents, Hormonal, Aromatase Inhibitors administration & dosage, Arthralgia chemically induced, Arthralgia physiopathology, Bone Density drug effects, Breast Neoplasms blood, Breast Neoplasms physiopathology, Cholecalciferol adverse effects, Double-Blind Method, Drug-Related Side Effects and Adverse Reactions drug therapy, Drug-Related Side Effects and Adverse Reactions physiopathology, Female, Humans, Letrozole, Middle Aged, Musculoskeletal Diseases chemically induced, Musculoskeletal Diseases physiopathology, Nitriles administration & dosage, Triazoles administration & dosage, Vitamin D blood, Aromatase Inhibitors adverse effects, Arthralgia drug therapy, Breast Neoplasms drug therapy, Cholecalciferol administration & dosage, Musculoskeletal Diseases drug therapy
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The purpose of the study was to evaluate the efficacy and safety of vitamin D3 at 4000 IU/day as a treatment option for aromatase inhibitor-associated musculoskeletal symptoms (AIMSS) when compared with the usual care dose of 600 IU D3. We conducted a single site randomized, double-blind, phase 3 clinical trial in women with AIMSS comparing change in symptoms, reproductive hormones and AI pharmacokinetics. Postmenopausal women ≥18 years with stages I-IIIA breast cancer, taking AI and experiencing AIMSS [breast cancer prevention trial symptom scale-musculoskeletal (BCPT-MS) subscale ≥1.5] were admitted. Following randomization, 116 patients had a run-in period of 1 month on 600 IU D3, then began the randomized assignment to either 600 IU D3 (n = 56) or 4000 IU D3 (n = 57) daily for 6 months. The primary endpoint was a change in AIMSS from baseline (after 1 month run-in) on the BCPT-MS (general MS pain, joint pain, muscle stiffness, range for each question: 0 = not at all to 4 = extremely). Groups had no statistically significant differences demographically or clinically. There were no discernable differences between the randomly allocated treatment groups at 6 months in measures of AIMSS, pharmacokinetics of anastrozole and letrozole, serum levels of reproductive hormones, or adverse events. We found no significant changes in AIMSS measures between women who took 4000 IU D3 daily compared with 600 IU D3. The 4000 IU D3 did not adversely affect reproductive hormone levels or the steady state pharmacokinetics of anastrozole or letrozole. In both groups, serum 25(OH)D remained in the recommended range for bone health (≥30 ng/mL) and safety (<50 ng/mL)., Competing Interests: Compliance with Ethical Standards No conflicts of interest reported by any of the authors.
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- 2016
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17. HOSPITAL INSULIN PROTOCOL AIMS FOR GLUCOSE CONTROL IN GLUCOCORTICOID-INDUCED HYPERGLYCEMIA.
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Grommesh B, Lausch MJ, Vannelli AJ, Mullen DM, Bergenstal RM, Richter SA, and Fish LH
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- Adult, Aged, Aged, 80 and over, Female, Humans, Hyperglycemia blood, Hyperglycemia epidemiology, Male, Middle Aged, Treatment Outcome, Algorithms, Blood Glucose metabolism, Glucocorticoids adverse effects, Hospitalization statistics & numerical data, Hyperglycemia chemically induced, Hyperglycemia therapy, Patient Care Planning
- Abstract
Objective: To compare the effectiveness of 2 insulin protocols to treat glucocorticoid-induced hyperglycemia in the nonintensive care hospital setting., Methods: A randomized, open-label, parallel-arm study was conducted comparing standard recommended care of complete insulin orders (CIO) (i.e., 3-part insulin regimen of long-acting basal [background], rapid-acting bolus [mealtime], and rapid-acting correction factor) to an experimental group following a regimen of Neutral Protamine Hagedorn (NPH) plus CIO (NPH-CIO). The primary outcome was mean blood glucose (BG), and the secondary outcome was percent of BG in target range of 70 to 180 mg/dL. Hypoglycemia was also evaluated., Results: Sixty-one patients completed 2 to 5 consecutive inpatient days (31 CIO; 30 NPH-CIO). Baseline mean BG results were 237.2 ± 50.2 and 221.9 ± 35.8 mg/dL (P = .30) in the CIO and NPH-CIO groups, respectively. No significant difference in overall mean BG between the 2 groups was detected; however, a significant difference arose on day 3: mean BG 181.8 ± 32.6 mg/dL (CIO) versus 157.2 ± 6.1 mg/dL (NPH-CIO) (P = .03). Moreover, the total daily doses (TDDs) of insulin did not differ: 34.8 ± 43.0 units (CIO) versus 35.8 ± 25.0 units (NPH-CIO) (P = .13). Percent of BG in target was 54.6% (CIO) and 62% (NPH-CIO) (P = .24). Incidence of severe hypoglycemia (<50 mg/dL) was the same in both groups (0.1%)., Conclusion: NPH added to 3-part insulin regimen (CIO) may be an effective way to a combat glucocorticoid-induced hyperglycemia, though further research is needed in a larger population.
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- 2016
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18. Symptomatic chronic obstructive pulmonary disease in clinical trials and in a population-based study.
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Niederseer D, Richter SA, Neunhäuserer D, Lamprecht B, Buist SA, Studnicka M, and Niebauer J
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- Aged, Case-Control Studies, Comorbidity, Evidence-Based Medicine, Female, Humans, Male, Middle Aged, Pulmonary Disease, Chronic Obstructive diagnosis, Reproducibility of Results, Sex Factors, Clinical Trials as Topic standards, Data Accuracy, Exercise Therapy, Pulmonary Disease, Chronic Obstructive therapy, Tiotropium Bromide therapeutic use
- Abstract
Purpose: Evidence-based medicine promotes the current best evidence from clinical trials to guide decisions for individual patients. We assessed whether chronic obstructive pulmonary disease (COPD) patients included in exercise training studies and pharmacologic trials match those from a non-selected COPD target population sample., Methods: Exercise training studies were identified in a literature search. Towards a Revolution in COPD Health (TORCH) and Understanding Potential Long-Term Impacts on Function with Tiotropium (UPLIFT) were chosen to represent pharmacologic trials. Burden of Obstructive Lung Disease (BOLD) data were used to characterize target COPD population (BOLD target), defined as the presence of dyspnea (modified Medical Research Council ≥2) and non-reversible airway obstruction (post-bronchodilator FEV1/FVC ≤0.7 and FEV1% predicted ≤70 %)., Results: Overall 240 exercise training studies with 13,901, TORCH and UPLIFT with 12,105, and BOLD with 16,218 participants were evaluated. Males were overrepresented in exercise training studies (67.5%) and pharmacologic trials (TORCH 75.8%; UPLIFT 74.6%), whereas in BOLD target 55.8% were males (p < 0.001). In exercise training studies, 7.2% were never-smokers, 0.0% in TORCH and UPLIFT, but 36.0% in BOLD target (p < 0.001). Subjects with cardiac comorbidity were excluded from 75.4% of exercise training studies, entirely from TORCH and UPLIFT, but comprised 24.5% of BOLD target., Conclusions: COPD patients recruited in exercise training studies and in pharmacologic trials differ from target population of symptomatic COPD. Females, never-smokers, and patients with cardiac comorbidities are more likely excluded from the clinical trials.
- Published
- 2015
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19. What does remission tell us about women with eating disorders? Investigating applications of various remission definitions and their associations with quality of life.
- Author
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Ackard DM, Richter SA, Egan AM, and Cronemeyer CL
- Subjects
- Adult, Anorexia Nervosa diagnosis, Anorexia Nervosa therapy, Bulimia Nervosa diagnosis, Bulimia Nervosa therapy, Concept Formation, Feeding and Eating Disorders psychology, Female, Humans, Inpatients, Treatment Outcome, Anorexia Nervosa psychology, Bulimia Nervosa psychology, Quality of Life, Remission Induction
- Abstract
Objective: To compare remission rates, determine level of agreement and identify quality of life (QoL) distinctions across a broad spectrum of remission definitions among patients with eating disorders (ED)., Methods: Women (N=195; 94 AN, 24 BN, and 77 EDNOS) from inpatient and partial hospital ED programs participated in a study of treatment outcomes. Remission rates were evaluated with percentages, kappa coefficients identified level of agreement and Mann-Whitney-Wilcoxon tests with Bonferroni corrections determined differences in quality of life between remitted and not remitted patients by remission definition., Results: Depending on remission definition used, the percent of remitted patients varied from 13.2% to 40.5% for AN, 15.0% to 47.6% for BN and 24.2% to 53.1% for EDNOS. Several definitions demonstrated "very good" agreement across diagnoses. Remission was associated with higher quality of life in psychological, physical/cognitive, financial and work/school domains on a disease-specific measure, and in mental but not physical functioning on a generic measure., Conclusions: Remission rates vary widely depending on the definition used; several definitions show strong agreement. Remission is associated with quality of life, and often approximates scores for women who do not have an eating disorder. The ED field would benefit from adopting uniform criteria, which would allow for more accurate comparison of remission rates across therapeutic interventions, treatment modalities and facilities. We recommend using the Bardone-Cone criteria because it includes assessment of psychological functioning, was found to be applicable across diagnoses, demonstrated good agreement, and was able to distinguish quality of life differences between remitted and not remitted patients., (© 2013.)
- Published
- 2014
- Full Text
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20. No change in physician dictation patterns when visit notes are made available online for patients.
- Author
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Kind EA, Fowles JB, Craft CE, Kind AC, and Richter SA
- Subjects
- Documentation, Humans, Minnesota, Pulmonary Medicine, Rheumatology, Access to Information, Electronic Health Records, Internet, Office Visits, Practice Patterns, Physicians'
- Abstract
Objective: To determine whether physicians document office visits differently when they know their patients have easy, online access to visit notes., Patients and Methods: We conducted a natural experiment with a pre-post design and a nonrandomized control group. The setting was a multispecialty group practice in Minnesota. We reviewed a total of 400 visit notes: 100 each for patients seen in a rheumatology department (intervention group) and a pulmonary medicine department (control group) from July 1 to August 30, 2005, before online access to notes, and 100 each for patients seen in these 2 departments 1 year later, from July 1 to August 30, 2006, when only rheumatology patients had online access to visit notes. We measured changes in visit note content related to 9 hypotheses for increased patient understanding and 5 for decreased frank or judgmental language., Results: Changes occurred for 2 of the 9 hypotheses related to patient understanding, both in an unpredicted direction. The proportion of acronyms or abbreviations increased more in the notes of rheumatologists than of pulmonologists (0.6% vs 0.1%; P=.01), whereas the proportion of anatomy understood decreased more in the notes of rheumatologists than of pulmonologists (-5.9% vs -0.8%; P=.02). One change (of 5 possible) occurred related to the use of frank or judgmental terms. Mentions of mental health status decreased in rheumatology notes and increased in pulmonology notes (-8% vs 7%; P=.02)., Conclusion: Dictation patterns appear relatively stable over time with or without online patient access to visit notes.
- Published
- 2011
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21. Number of different purging behaviors used among women with eating disorders: psychological, behavioral, self-efficacy and quality of life outcomes.
- Author
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Ackard DM, Cronemeyer CL, Franzen LM, Richter SA, and Norstrom J
- Subjects
- Anxiety psychology, Body Mass Index, Depression psychology, Feeding Behavior psychology, Female, Humans, Laxatives, Surveys and Questionnaires, Women, Feeding and Eating Disorders psychology, Quality of Life psychology, Self Efficacy, Vomiting psychology
- Abstract
The objective of this study was to examine differences between a number of different purging behaviors used and outcome measures among eating disorder patients. Among 211 females who received inpatient or partial hospitalization eating disorder treatment, analyses of covariance and cross-tabulations identified associations among a number of different purging behaviors (vomiting, laxative use, diuretic use) used and psychological, behavioral, self-efficacy and quality of life measures at follow-up. Most patients (80.1%) reported purging for weight control. Use of different purging behaviors was significantly associated at follow-up with lower self-esteem, greater depression, higher state and trait anxiety, higher BMI, poorer self-efficacy for normative eating and body image, compromised quality of life, greater dietary restraint, and eating, shape and weight concerns. Furthermore, a higher percentage of those who used purging behaviors met criteria for a subthreshold or threshold eating disorder at follow-up compared to their non-purging peers. Eating disorder patients who use different purging behaviors are more compromised at follow-up than patients who do not purge. Due to the severe medical complications associated with different purging behaviors, future research should address best practices for clinical intervention and prevention.
- Published
- 2011
- Full Text
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22. Polyionic fusion peptides function as specific dimerization motifs.
- Author
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Richter SA, Stubenrauch K, Lilie H, and Rudolph R
- Subjects
- Animals, Circular Dichroism, Cloning, Molecular, Dimerization, Escherichia coli, Humans, Immunoglobulin Fab Fragments chemistry, Ions, Mice, Oxidation-Reduction, Protein Engineering, Protein Structure, Tertiary, Recombinant Fusion Proteins chemistry, Saccharomyces cerevisiae, alpha-Glucosidases genetics, alpha-Glucosidases metabolism, Proteins chemistry
- Abstract
The de novo design of a molecular adapter for directed association and covalent linkage of two polypeptides is presented. Using peptides containing charged amino acid residues and an additional cysteine residue (AlaCysLys(8) and AlaCysGlu(8)) we demonstrate that the electrostatic interaction promotes the association of two synthetic peptides and, subsequently, disulfide bond formation. The reaction depends on both the redox potential and on the ionic strength of the buffer. Varying the redox potential, the interaction of the peptides was quantified by a Delta G(0') of 6.6 +/- 0.2 kcal/mol. Heterodimerization of the peptides is highly specific, a competition of association by other cysteine containing compounds could not be observed. Two proteins comprising cysteine-containing polyionic fusion peptides, a modified Fab fragment and an alpha-glucosidase fusion, could be specifically conjugated by directed association and subsequent disulfide bond formation. Both proteins retain their functional characteristics within the bifunctional conjugate: enzymatic activity of the alpha-glucosidase and antigen-binding capacity of the Fab fragment are equivalent to the non-conjugated components.
- Published
- 2001
- Full Text
- View/download PDF
23. Cancer risk management A review of 132 federal regulatory decisions.
- Author
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Travis CC, Richter SA, Crouch EA, Wilson R, and Klema ED
- Published
- 1987
- Full Text
- View/download PDF
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