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Assessment of the Smoke Free Families Tobacco Screening, Counseling, and Referral Program in Pediatric Primary Care Practices. Acad Pediatr 2024; 24:277-283. [PMID: 37245665 PMCID: PMC10676440 DOI: 10.1016/j.acap.2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/10/2023] [Accepted: 05/22/2023] [Indexed: 05/30/2023]
Abstract
OBJECTIVE The Smoke Free Families (SFF) program trained pediatric providers to use an SFF tool during well-child visits (WCVs) of infants ≤12 months to "Ask" caregivers about tobacco use, "Advise" smokers to quit, and "Refer" smokers to cessation services (AAR). The primary objectives were to assess the prevalence and changes in caregiver tobacco use after being screened and counseled by providers using the SFF tool. A secondary objective was to examine providers' AAR behavior facilitated by using the SFF tool. METHODS Pediatric practices participated in 1 of 3 6-9-month SFF program waves. Over the 3 waves, all initial SFF tools completed on caregivers during their infant's WCV were evaluated for the caregiver and household tobacco use and providers' AAR rates. An infant's first and next WCV was matched to determine changes in caregiver tobacco product use. RESULTS In total, the SFF tool was completed at 19,976 WCVs; 2081 (18.8%) infants were exposed to tobacco smoke. A total of 834 (74.1%) caregivers who smoked received counseling: 786 (69.9%) were advised to quit, 700 (62.2%) were given cessation resources, and 198 (17.6%) were referred to the Quitline. In total, 230 (27.6%) of caregivers who smoked had a second visit; 58 (25.2%) self-reported that they quit using tobacco. Among cigarette users (n = 183), 89 (48.6%) reported that they used fewer cigarettes or quit at their infants' second WCV. CONCLUSIONS Systematic use of the SFF AAR tool during infants' WCVs could improve the health of caregivers and children, resulting in decreases in tobacco-related morbidity.
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A Medicaid-Funded Statewide Diabetes Quality Improvement Collaborative: Ohio 2020‒2022. Am J Public Health 2023; 113:1254-1257. [PMID: 37824811 PMCID: PMC10632832 DOI: 10.2105/ajph.2023.307410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2023] [Indexed: 10/14/2023]
Abstract
We used a collective impact model to form a statewide diabetes quality improvement collaborative to improve diabetes outcomes and advance diabetes health equity. Between 2020 and 2022, in collaboration with the Ohio Department of Medicaid, Medicaid Managed Care Plans, and Ohio's seven medical schools, we recruited 20 primary care practices across the state. The percentage of patients with hemoglobin A1c greater than 9% improved from 25% to 20% over two years. Applying our model more broadly could accelerate improvement in diabetes outcomes. (Am J Public Health. 2023;113(12):1254-1257. https://doi.org/10.2105/AJPH.2023.307410).
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Applying the Urgent Maternal Warning Signs Initiative in a Novel Setting. J Healthc Qual 2023; 45:324-331. [PMID: 37788440 DOI: 10.1097/jhq.0000000000000401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
ABSTRACT Symptoms of urgent maternal warning signs (UMWS) may occur during pregnancy or after delivery and may have lasting effects or indicate a life-threatening situation if left untreated. The state department of health sponsored a quality improvement project (QIP) to broaden the reach of UMWS education beyond traditional clinical settings, to public health settings where prenatal and postpartum women are seen. Specifically, the QIP implemented process changes to provide education (written and verbal) and resources to individuals receiving services from Women, Infants, and Children clinics during pregnancy and up to 12 weeks postpartum. Clinics submitted participant-level data although the Research Electronic Data Capture secure data portal. The key results indicated an increase in both written and verbal education. In addition, the project monitored referrals made specific to conditions identified through project-specific data collection and the provision of UMWS education.
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Establishing a clinical informatics umbilical cord: lessons learned in launching infrastructure to support dyadic mother/infant primary care. JAMIA Open 2023; 6:ooad065. [PMID: 37600075 PMCID: PMC10438959 DOI: 10.1093/jamiaopen/ooad065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/23/2023] [Accepted: 08/02/2023] [Indexed: 08/22/2023] Open
Abstract
The Multimodal Maternal Infant Perinatal Outpatient Delivery System (MOMI PODS) was developed to facilitate the pregnancy to postpartum primary care transition, particularly for individuals at risk for severe maternal morbidity, via a unique multidisciplinary model of mother/infant dyadic primary care. Specialized clinical informatics platforms are critical to ensuring the feasibility and scalability of MOMI PODS and a smooth perinatal transition into longitudinal postpartum primary care. In this manuscript, we describe the MOMI PODS transition and management clinical informatics platforms developed to facilitate MOMI PODS referrals, scheduling, evidence-based multidisciplinary care, and program evaluation. We discuss opportunities and lessons learned associated with our applied methods, as advances in clinical informatics have considerable potential to enhance the quality and evaluation of innovative maternal health programs like MOMI PODS.
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Developing a multimodal maternal infant perinatal outpatient delivery system: the MOMI PODS program. Front Glob Womens Health 2023; 4:1232662. [PMID: 37811534 PMCID: PMC10552521 DOI: 10.3389/fgwh.2023.1232662] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 09/11/2023] [Indexed: 10/10/2023] Open
Abstract
Progress in maternal child health has been hampered by poor rates of outpatient follow up for postpartum individuals. Primary care after delivery can effectively detect and treat several pregnancy-related complications and comorbidities, but postpartum linkage to primary care remains low. In this manuscript, we share the experience of implementing a novel mother-infant dyad program, the Multimodal Maternal Infant Perinatal Outpatient Delivery System (MOMI PODS), to improve primary care linkage and community resource access postpartum via integration into pediatric care structures. With a focus on providing care for people who are publicly insured, we designed a program to mitigate maternal morbidity risk factors in postpartum individuals with chronic disease or pregnancy complications. We discuss the systematic process of designing, executing, and evaluating a collaborative clinical program with involvement of internal medicine/pediatric, family medicine, and obstetric clinicians via establishing stakeholders, identifying best practices, drawing from the evidence base, designing training and promotional materials, training partners and providers, and evaluating clinic enrollment. We share the challenges encountered such as in achieving sufficient provider capacity, consistent provision of care, scheduling, and data tracking, as well as mitigation strategies to overcome these barriers. Overall, MOMI PODS is an innovative approach that integrates outpatient postpartum care into traditional pediatric structures to increase access, showing significant promise to improve healthcare utilization and promote postpartum health.
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A Medicaid Statewide Hypertension Quality Improvement Project: Initial Results. Cureus 2023; 15:e36132. [PMID: 37065351 PMCID: PMC10100600 DOI: 10.7759/cureus.36132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/14/2023] [Indexed: 03/16/2023] Open
Abstract
Background Hypertension control is critical to reducing cardiovascular disease, challenging to achieve, and exacerbated by socioeconomic inequities. Few states have established statewide quality improvement (QI) infrastructures to improve blood pressure (BP) control across economically disadvantaged populations. In this study, we aimed to improve BP control by 15% for all Medicaid recipients and by 20% for non-Hispanic Black participants. Methodology This QI study used repeated cross-sections of electronic health record data and, for Medicaid enrollees, linked Medicaid claims data for 17,672 adults with hypertension seen at one of eight high-volume Medicaid primary care practices in Ohio from 2017 to 2019. Evidence-based strategies included (1) accurate BP measurement; (2) timely follow-up; (3) outreach; (4) a standardized treatment algorithm; and (5) effective communication. Payers focused on a 90-day supply (vs. 30-day) of BP medications, home BP monitor access, and outreach. Implementation efforts included an in-person kick-off followed by monthly QI coaching and monthly webinars. Weighted generalized estimating equations were used to estimate the baseline, one-year, and two-year implementation change in the proportion of visits with BP control (<140/90 mm Hg) stratified by race/ethnicity. Results For all practices, the percentage of participants with controlled BP increased from 52% in 2017 to 60% in 2019. Among non-Hispanic Whites, the odds of achieving BP control in year one and year two were 1.24 times (95% confidence interval: 1.14, 1.34) and 1.50 times (1.38, 1.63) higher relative to baseline, respectively. Among non-Hispanic Blacks, the odds for years one and two were 1.18 times (1.10, 1.27) and 1.34 times (1.24, 1.45) higher relative to baseline, respectively. Conclusions A hypertension QI project as part of establishing a statewide QI infrastructure improved BP control in practices with a high volume of disadvantaged patients. Future efforts should investigate ways to reduce inequities in BP control and further explore factors associated with greater BP improvements and sustainability.
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Mothers' Perspectives on a Mother/Infant Dyad Postpartum Primary Care Program Following Gestational Diabetes Mellitus: A Qualitative Pilot Study. Sci Diabetes Self Manag Care 2022; 48:247-257. [PMID: 35658777 DOI: 10.1177/26350106221100539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE The purpose of this study is to characterize mothers' experiences within a mother/infant dyad postpartum primary care program (Dyad) following gestational diabetes mellitus (GDM) to inform improvements in the delivery of care. METHODS A qualitative pilot study of women (n = 10) enrolled in a mother/infant Dyad program was conducted in a primary care practice at a large, urban academic medical center. Respondents were asked a series of open-ended questions about their experience with GDM, the Dyad program, and health behaviors. Interviews were audio-recorded, transcribed verbatim, and analyzed using ground theory with NVivo 12 Plus software. RESULTS Three key themes emerged: (1) Dyad program experience, (2) implementation of health behavior changes, and (3) acknowledgment of future GDM and type 2 diabetes mellitus (T2DM) health risks. Respondents found the Dyad program respondents felt that the program conveniently served mother and infant health care needs in a single appointment. Respondents also valued support from primary care providers when implementing health behavior changes. The Dyad program provided an opportunity for respondents to understand their current and future risk for developing GDM and T2DM. CONCLUSIONS Postpartum women enrolled in the Dyad program received highly personalized primary care services. The results of our study will help integrate patient-centered strategies into models for GDM care to maintain patient engagement in postpartum clinical services.
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The Preperitoneal Space in Hernia Repair. Front Surg 2022; 9:869731. [PMID: 35711709 PMCID: PMC9197412 DOI: 10.3389/fsurg.2022.869731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/28/2022] [Indexed: 11/16/2022] Open
Abstract
The preperitoneal spaces relevant for incisional hernia repair and minimally invasive groin hernia repair are described in terms of surgical anatomy. Emphasis is put on the transversalis fascia and the urogenital fascia and its extensions, the vesicoumbilical fascia, and the spermatic sheath of Stoppa procedure. Steps in hernia surgery where these structures are relevant are reviewed.
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Assessing Impact of Implicit Bias/Anti-Racism Programs for Obstetrical Providers in a Statewide Quality Improvement Initiative. Am J Obstet Gynecol 2022. [DOI: 10.1016/j.ajog.2021.11.1019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Telemedicine versus on-site treatment at a surgical university clinic: Study of 225 consecutive patients. Int J Med Inform 2021; 151:104460. [PMID: 33965683 DOI: 10.1016/j.ijmedinf.2021.104460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 03/25/2021] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Recently, telemedical services are increasingly used. It remains unclear, if outpatients in general surgery can be treated via telemedicine (e.g. telework). We aimed to evaluate, if diagnosis and therapies of outpatients in general surgery can be found using a mobile healthcare communication app instead of personal contact. MATERIAL AND METHODS In a prospective, double blind, anonymized clinical study we included consecutive outpatients at a general surgery department at a university hospital. For the telemedical "treatment" the on-site doctors uploaded variables (e.g. anamnesis, radiograph, etc.) for each patient. The telemedical doctor received the information only via app and did not see the patient physically. Both, the doctor on-site and the virtual telemedical-doctor then uploaded the diagnosis and their suggested therapy - blinded to each other. The outpatient received the on-site treatment only. The virtual treatment was solely for scientific purposes and had no therapeutic impact. RESULTS 225 consecutive surgical outpatients (53 % female and 47 % male) were included. Mean age was 61 years. In 84 % of cases the telemedical diagnosis matched the on-site diagnosis. The telemedical treatment was not inferior as compared to the on-site treatment in 94 % of all cases and the same therapy was proposed in 76 %. In 6% of all cases the telemedical therapeutic regimen could possibly harm or lead to an over- or under treatment of the patient. CONCLUSION Telemedical consultation seems to work in the field of general surgery. Telemedicine in general surgery potentially could decrease waiting time for an appointment and patient frequency. However, the potential harm of a wrong therapy remains due to the lack of a clinical observation.
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A multi-organ-chip co-culture of liver and testis equivalents: a first step toward a systemic male reprotoxicity model. Hum Reprod 2021; 35:1029-1044. [PMID: 32390056 DOI: 10.1093/humrep/deaa057] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/30/2020] [Accepted: 03/09/2020] [Indexed: 12/15/2022] Open
Abstract
STUDY QUESTION Is it possible to co-culture and functionally link human liver and testis equivalents in the combined medium circuit of a multi-organ chip? SUMMARY ANSWER Multi-organ-chip co-cultures of human liver and testis equivalents were maintained at a steady-state for at least 1 week and the co-cultures reproduced specific natural and drug-induced liver-testis systemic interactions. WHAT IS KNOWN ALREADY Current benchtop reprotoxicity models typically do not include hepatic metabolism and interactions of the liver-testis axis. However, these are important to study the biotransformation of substances. STUDY DESIGN, SIZE, DURATION Testicular organoids derived from primary adult testicular cells and liver spheroids consisting of cultured HepaRG cells and hepatic stellate cells were loaded into separate culture compartments of each multi-organ-chip circuit for co-culture in liver spheroid-specific medium, testicular organoid-specific medium or a combined medium over a week. Additional multi-organ-chips (single) and well plates (static) were loaded only with testicular organoids or liver spheroids for comparison. Subsequently, the selected type of medium was supplemented with cyclophosphamide, an alkylating anti-neoplastic prodrug that has demonstrated germ cell toxicity after its bioactivation in the liver, and added to chip-based co-cultures to replicate a human liver-testis systemic interaction in vitro. Single chip-based testicular organoids were used as a control. Experiments were performed with three biological replicates unless otherwise stated. PARTICIPANTS/MATERIALS, SETTING, METHODS The metabolic activity was determined as glucose consumption and lactate production. The cell viability was measured as lactate dehydrogenase activity in the medium. Additionally, immunohistochemical and real-time quantitative PCR end-point analyses were performed for apoptosis, proliferation and cell-specific phenotypical and functional markers. The functionality of Sertoli and Leydig cells in testicular spheroids was specifically evaluated by measuring daily inhibin B and testosterone release, respectively. MAIN RESULTS AND THE ROLE OF CHANCE Co-culture in multi-organ chips with liver spheroid-specific medium better supported the metabolic activity of the cultured tissues compared to other media tested. The liver spheroids did not show significantly different behaviour during co-culture compared to that in single culture on multi-organ-chips. The testicular organoids also developed accordingly and produced higher inhibin B but lower testosterone levels than the static culture in plates with testicular organoid-specific medium. By comparison, testosterone secretion by testicular organoids cultured individually on multi-organ-chips reached a similar level as the static culture at Day 7. This suggests that the liver spheroids have metabolised the steroids in the co-cultures, a naturally occurring phenomenon. The addition of cyclophosphamide led to upregulation of specific cytochromes in liver spheroids and loss of germ cells in testicular organoids in the multi-organ-chip co-cultures but not in single-testis culture. LARGE-SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The number of biological replicates included in this study was relatively small due to the limited availability of individual donor testes and the labour-intensive nature of multi-organ-chip co-cultures. Moreover, testicular organoids and liver spheroids are miniaturised organ equivalents that capture key features, but are still simplified versions of the native tissues. Also, it should be noted that only the prodrug cyclophosphamide was administered. The final concentration of the active metabolite was not measured. WIDER IMPLICATIONS OF THE FINDINGS This co-culture model responds to the request of setting up a specific tool that enables the testing of candidate reprotoxic substances with the possibility of human biotransformation. It further allows the inclusion of other human tissue equivalents for chemical risk assessment on the systemic level. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by research grants from the Scientific Research Foundation Flanders (FWO), Universitair Ziekenhuis Brussel (scientific fund Willy Gepts) and the Vrije Universiteit Brussel. Y.B. is a postdoctoral fellow of the FWO. U.M. is founder, shareholder and CEO of TissUse GmbH, Berlin, Germany, a company commercializing the Multi-Organ-Chip platform systems used in the study. The other authors have no conflict of interest to declare.
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A quality improvement collaborative increased preventive education and screening rates for women at high-risk for type 2 diabetes mellitus in primary care settings. Prim Care Diabetes 2020; 14:335-342. [PMID: 31706949 DOI: 10.1016/j.pcd.2019.09.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/19/2019] [Accepted: 09/30/2019] [Indexed: 01/11/2023]
Abstract
AIMS Type 2 diabetes mellitus (T2DM) rates continue to increase across women of reproductive age in the United States. The Ohio Type 2 Diabetes Learning Collaborative aimed to improve education and screening for T2DM among women aged 18-44years at high risk for developing T2DM. METHODS Fifteen primary care practices across Ohio participated in a 12-month quality improvement (QI) collaborative, which included monthly calls to share best practices, one-on-one QI coaching, and Plan-Do-Study-Act cycles. Monthly, practices submitted data on three outcome measures on preventive education and three measures on clinical screening for T2DM. RESULTS Increases across each of the three preventive education rates (range of percent increase: 53.6% - 60.0%) and each of the three screening rates for T2DM (15.0% - 19.4%) were observed. Specifically, screening rates for high-risk women with two or more risk factors for T2DM (excluding gestational diabetes mellitus (GDM)) increased by 16.8% (60.5%-77.3%) while rates for T2DM among women with a history of GDM increased by 15.0% (75.0 - 90.0). CONCLUSIONS A quality improvement collaborative increased preventive education and screening rates for women at high-risk for T2DM in primary care settings.
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Implementing Living Independent From Tobacco With Dyads of People With Disabilities and Their Caregivers: Successes and Lessons Learned. INTELLECTUAL AND DEVELOPMENTAL DISABILITIES 2020; 58:241-250. [PMID: 32484885 DOI: 10.1352/1934-9556-58.3.241] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 10/11/2019] [Indexed: 06/11/2023]
Abstract
People with disabilities have more health complications and higher healthcare utilization related to tobacco use than people without disabilities. Yet, they are less likely to use tobacco cessation resources. Important to meaningful and lasting health behavior change are relationships developed in the home, workplace, and community. Some people with disabilities rely on paid and unpaid caregivers. Just like people with disabilities, paid caregivers are more likely to use tobacco, creating a unique opportunity to target smoking cessation to people with disabilities and their caregivers. Living Independent From Tobacco (LIFT), an evidence-based tobacco cessation intervention, was implemented with dyads of people with disabilities (n = 5) and their caregivers (n = 7). Qualitative analyses revealed that participants valued the dyadic approach and the opportunity to learn coping skills to help with smoking cessation. Lessons for offering inclusive health promotion interventions to people with disabilities and their caregivers are discussed.
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Formation of relocatable umbilical defects in a liquid crystal with positive dielectric anisotropy induced via photovoltaic fields. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112963] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Laparoscopic fundoplication and new aspects of neural anatomy at the oesophagogastric junction. BJS Open 2020; 4:400-404. [PMID: 32134571 PMCID: PMC7260418 DOI: 10.1002/bjs5.50271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Accepted: 02/03/2020] [Indexed: 11/23/2022] Open
Abstract
Background In fundoplication, mobilization of the distal oesophagus and proximal stomach is essential to obtain a sufficient tension‐free intra‐abdominal oesophageal length for creation of an efficient antireflux barrier. Most surgical literature and anatomical illustrations do not describe nerve branches running from the diaphragm to the stomach. After observing small nerve branches at laparoscopic fundoplication, penetrating the left crus of the diaphragm lateral to the hiatus and apparently running into the stomach, an anatomical cadaver study was undertaken to identify the origin and target organ of these nerves. Methods Fifty‐three human cadavers (23 men, 30 women; age range 35–103 years) were dissected with special attention to the nerves that penetrate the left crus of the diaphragm. The entire course of these nerves was documented with standardized drawings and photos. Results Small nerve branches penetrating the diaphragm lateral to the left crus of the hiatus were found in 17 (32 per cent) of the 53 cadavers. In 14 of these 17 cadavers, one or two splanchnic nerve branches were identified, and in ten of the 17 the nerve branches were found to be phrenic nerves. In seven of these 17 cadavers, two different nerve branches were found and assigned to both splanchnic and phrenic nerves. Conclusion Nerves penetrating the left crus with splanchnic origin or phrenic origin have been identified. Their function remains unclear and their relationship to postfundoplication symptoms remains to be determined.
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Better Together: A Pilot Study on Cooking Matters for Adults With Developmental Disabilities and Direct Support Professionals. Nutr Metab Insights 2019; 12:1178638819840036. [PMID: 31001060 PMCID: PMC6454645 DOI: 10.1177/1178638819840036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 03/04/2019] [Indexed: 11/26/2022] Open
Abstract
Adults with developmental disabilities face barriers to making healthy lifestyle
choices that mirror the barriers faced by the direct support professionals who
serve them. These two populations, direct support professionals and adults with
developmental disabilities, are likely to lead inactive lifestyles, eat
unhealthy diets, and be obese. Moreover, direct support professionals influence
the nutrition knowledge, attitudes, and health behaviors of the adults with
developmental disabilities whom they serve. We piloted a cooking-based nutrition
education program, Cooking Matters for Adults, to dyads of
adults with developmental disabilities (n = 8) and direct support professionals
(n = 7). Team-taught by a volunteer chef and nutrition educator, Cooking
Matters for Adults uses an active learning approach to teach food
preparation safety skills and nutrition knowledge to inform healthy food and
beverage choices. We assessed healthy food preparation, intake of a balanced
diet, healthy food and beverage choices, and cooking confidence and barriers at
pre-test, post-test, and 6-months after the intervention. Among both adults with
developmental disabilities and direct support professionals, positive trends in
healthy food preparation, eating a balanced diet, and reduction in cooking
barriers were observed at post-test and 6-months. We also qualitatively assessed
knowledge of and attitudes toward healthy eating, frequency of food and beverage
intake, knowledge about kitchen skills and safety, as well as overall
satisfaction, cooking confidence, and acceptability of the dyad approach.
Participants with developmental disabilities and direct support professionals
reported that they learned about healthy food and beverage choices and various
cooking skills. Participants reported confidence in skills learned and were
satisfied with the intervention and approach of including adults with
developmental disabilities and direct support professionals in the intervention
together.
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Evidence for the Fidelity and Effectiveness of Living Independent From Tobacco for People with Disabilities and Their Caregivers. Tob Use Insights 2019; 12:1179173X18825075. [PMID: 30718966 PMCID: PMC6348572 DOI: 10.1177/1179173x18825075] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 12/17/2018] [Indexed: 11/20/2022] Open
Abstract
People with disabilities (PWD) are more likely to use tobacco and less likely to access tobacco cessation programs compared with people without disabilities. Living Independent From Tobacco (LIFT), an evidence-based intervention designed for PWD, was piloted with dyads of PWD (n = 5) and their caregivers (n = 7). As an important source of practical and social support for PWD, caregivers also impact health-related attitudes, knowledge, and behaviors of PWD. Caregivers who smoke may unwittingly interfere with cessation efforts of the people they support. We found that LIFT could be offered to dyads of PWD and their caregivers with fidelity. The intervention was associated with increased use of coping strategies and self-efficacy to reduce smoking. Tobacco use decreased at post-test (-34.94%), with further reduction 6-months after the intervention (-50.60%). Implications for offering inclusive health promotion interventions to both PWD and their caregivers are discussed.
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[Validation of the German Version of the Sunnybrook Facial Grading System]. Laryngorhinootologie 2016; 96:168-174. [PMID: 27832680 DOI: 10.1055/s-0042-111512] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Background: The Sunnybrook facial grading system (SFGS) is frequently applied to evaluate facial function in patients with facial palsy, but still now there is no validated German version of this evaluation sheet. Methods: The original English version of the SFGS was translated and validated in accordance with international standards. The interrater reliability from 5 raters (speech therapy students) and the intrarater reliability from repeated ratings at 2 time points using video tapes of 18 patients with different types of facial palsy were analyzed by calculating the intraclass correlation coefficient (ICC) and other reliability measures. Results: ICC for the interrater reliability for the 4 components of the SFGS, resting symmetry, symmetry during voluntary movements, synkinesis, and the composite score were ICC 0.845; 0.903; 0.731 and 0.918, respectively, for the first evaluation and ICC 0.881; 0.932; 0.818 and 0.940, respectively, for the second evaluation. The mean intrarater reliability for the 4 SFGS scores was ICC=0.791; 0.906; 0.770 and 0.905. Discussion: There is now a valid German version of the SFGS available that can be used even by novices. The German version is suitable for evaluation of facial palsies in clinical routine and studies to allow a better comparability of German patients with results of the international literature.
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Overview of diagnostic performance and results for the first operation phase in Wendelstein 7-X (invited). THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:11D304. [PMID: 27910389 DOI: 10.1063/1.4964376] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Wendelstein 7-X, a superconducting optimized stellarator built in Greifswald/Germany, started its first plasmas with the last closed flux surface (LCFS) defined by 5 uncooled graphite limiters in December 2015. At the end of the 10 weeks long experimental campaign (OP1.1) more than 20 independent diagnostic systems were in operation, allowing detailed studies of many interesting plasma phenomena. For example, fast neutral gas manometers supported by video cameras (including one fast-frame camera with frame rates of tens of kHz) as well as visible cameras with different interference filters, with field of views covering all ten half-modules of the stellarator, discovered a MARFE-like radiation zone on the inboard side of machine module 4. This structure is presumably triggered by an inadvertent plasma-wall interaction in module 4 resulting in a high impurity influx that terminates some discharges by radiation cooling. The main plasma parameters achieved in OP1.1 exceeded predicted values in discharges of a length reaching 6 s. Although OP1.1 is characterized by short pulses, many of the diagnostics are already designed for quasi-steady state operation of 30 min discharges heated at 10 MW of ECRH. An overview of diagnostic performance for OP1.1 is given, including some highlights from the physics campaigns.
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The Ohio Gestational Diabetes Postpartum Care Learning Collaborative: Development of a Quality Improvement Initiative to Improve Systems of Care for Women. Matern Child Health J 2016; 20:71-80. [PMID: 27502198 PMCID: PMC6697553 DOI: 10.1007/s10995-016-2170-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Objectives To improve clinical practice and increase postpartum visit Type 2 diabetes mellitus (T2DM) screening rates in women with a history of gestational diabetes mellitus (GDM). Methods We recruited clinical sites with at least half of pregnant patients enrolled in Medicaid to participate in an 18-month quality improvement (QI) project. To support clinical practice changes, we developed provider and patient toolkits with educational and clinical practice resources. Clinical subject-matter experts facilitated a learning network to train sites and promote discussion and learning among sites. Sites submitted data from patient chart reviews monthly for key measures that we used to provide rapid-cycle feedback. Providers were surveyed at completion regarding toolkit usefulness and satisfaction. Results Of fifteen practices recruited, twelve remained actively engaged. We disseminated more than 70 provider and 2345 patient toolkits. Documented delivery of patient education improved for timely GDM prenatal screening, reduction of future T2DM risk, smoking cessation, and family planning. Sites reported toolkits were useful and easy to use. Of women for whom postpartum data were available, 67 % had a documented postpartum visit and 33 % had a postpartum T2DM screen. Lack of information sharing between prenatal and postpartum care providers was are barriers to provision and documentation of care. Conclusions for Practice QI and toolkit resources may improve the quality of prenatal education. However, postpartum care did not reach optimal levels. Future work should focus on strategies to support coordination of care between obstetrical and primary care providers.
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Prophylaxis of chemotherapy-induced neutropenia with lipegfilgrastim in patients with breast cancer: results from an interim analysis of the non-interventional study NADIR. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw390.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Chip based microphysiological systems – A step toward emulation of systemic aspects of human biology in vitro. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.07.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Pull-out strength of cemented solid versus fenestrated pedicle screws in osteoporotic vertebrae. Bone Joint Res 2016; 5:419-26. [PMID: 27678328 PMCID: PMC5041096 DOI: 10.1302/2046-3758.59.2000580] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 07/14/2016] [Indexed: 12/15/2022] Open
Abstract
Objectives Cement augmentation of pedicle screws could be used to improve screw stability, especially in osteoporotic vertebrae. However, little is known concerning the influence of different screw types and amount of cement applied. Therefore, the aim of this biomechanical in vitro study was to evaluate the effect of cement augmentation on the screw pull-out force in osteoporotic vertebrae, comparing different pedicle screws (solid and fenestrated) and cement volumes (0 mL, 1 mL or 3 mL). Materials and Methods A total of 54 osteoporotic human cadaver thoracic and lumbar vertebrae were instrumented with pedicle screws (uncemented, solid cemented or fenestrated cemented) and augmented with high-viscosity PMMA cement (0 mL, 1 mL or 3 mL). The insertion torque and bone mineral density were determined. Radiographs and CT scans were undertaken to evaluate cement distribution and cement leakage. Pull-out testing was performed with a material testing machine to measure failure load and stiffness. The paired t-test was used to compare the two screws within each vertebra. Results Mean failure load was significantly greater for fenestrated cemented screws (+622 N; p ⩽ 0.001) and solid cemented screws (+460 N; p ⩽ 0.001) than for uncemented screws. There was no significant difference between the solid and fenestrated cemented screws (p = 0.5). In the lower thoracic vertebrae, 1 mL cement was enough to significantly increase failure load, while 3 mL led to further significant improvement in the upper thoracic, lower thoracic and lumbar regions. Conclusion Conventional, solid pedicle screws augmented with high-viscosity cement provided comparable screw stability in pull-out testing to that of sophisticated and more expensive fenestrated screws. In terms of cement volume, we recommend the use of at least 1 mL in the thoracic and 3 mL in the lumbar spine. Cite this article: C. I. Leichtle, A. Lorenz, S. Rothstock, J. Happel, F. Walter, T. Shiozawa, U. G. Leichtle. Pull-out strength of cemented solid versus fenestrated pedicle screws in osteoporotic vertebrae. Bone Joint Res 2016;5:419–426.
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Towards a multi-organ-chip platform combining human liver, pancreatic islets, skeletal muscle and kidney equivalents to study metabolic diseases. DIABETOL STOFFWECHS 2016. [DOI: 10.1055/s-0036-1584105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
Non-allergic rhinitis is a heterogenous group of medical diseases without an IgE-mediated pathophysiology. In this review, typical subgroups are presented with data regarding their frequency, clinical symptoms and recommendations for an effective and efficient diagnostic and therapeutic approach are indicated. The most common subtype is the non-allergic rhinopathy, also known as idiopathic or vasomotoric rhinitis. Because medication induced rhinitis is still a frequent clinical problem, a step wise approach to wean the patient is presented.
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A microfluidic four-organ-chip for interconnected long-term co-culture of human intestine, liver, skin and kidney equivalents. Toxicol Lett 2015. [DOI: 10.1016/j.toxlet.2015.08.512] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Rapid prototyping--a promising technique for orthopaedic implant fabrication: application and validation of TKA prototypes for in-vitro testing. Comput Methods Biomech Biomed Engin 2014; 17 Suppl 1:54-5. [PMID: 25074161 DOI: 10.1080/10255842.2014.931109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Status of the diagnostics development for the first operation phase of the stellarator Wendelstein 7-X. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2014; 85:11D818. [PMID: 25430231 DOI: 10.1063/1.4889905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An overview of the diagnostics which are essential for the first operational phase of Wendelstein 7-X and the set of diagnostics expected to be ready for operation at this time are presented. The ongoing investigations of how to cope with high levels of stray Electron Cyclotron Resonance Heating (ECRH) radiation in the ultraviolet (UV)/visible/infrared (IR) optical diagnostics are described.
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Functionally computed flexion axis reduces kinematic interspecimen variation inin vitroexperiments. Comput Methods Biomech Biomed Engin 2014; 17 Suppl 1:126-7. [DOI: 10.1080/10255842.2014.931519] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Investigating the role of BAFF in different mouse models of allergic asthma. Pneumologie 2014. [DOI: 10.1055/s-0034-1376773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Challenges in the realization of the In-Vessel-Components of Wendelstein 7-X. FUSION ENGINEERING AND DESIGN 2013. [DOI: 10.1016/j.fusengdes.2013.03.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wo werden Objekte bei Jungen und Alten gelernt? Eine multimodale Imagingstudie. KLIN NEUROPHYSIOL 2013. [DOI: 10.1055/s-0033-1337214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Phosphorylation of wild-type and mutant phenotypes of p53 by an associated protein-kinase. Int J Oncol 2012; 1:571-9. [PMID: 21584583 DOI: 10.3892/ijo.1.5.571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Immunopurified mutant mouse p53 from transformed cells is known to be tightly associated with a protein kinase which phosphorylates p53 in an in vitro kinase reaction. Wild-type p53 from a non-transformed cell line was not associated with a protein kinase whereas immunopurified wild-type p53 from a transformed cell line was tightly associated with a protein kinase which phosphorylated p53. In order to compare wild-type and mutant p53 in the same cellular environment both forms were cloned in a baculovirus expression system and in in vitro transcription/translation vectors and both p53 proteins were expressed in the two systems. Wild-type and mutant p53 from baculovirus infected insect cells were tightly associated with a protein kinase which phosphorylates p53. In contrast, immunopurified wild-type and mutant p53 from an in vitro transcription/translation reaction were not associated with a protein kinase but could be phosphorylated by added casein kinase II. Thus, in the present paper we demonstrate that the association of p53 with a protein kinase and the in vitro phosphorylation of p53 seems to depend on the surrounding cellular environment.
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[Hereditary variants of primary hyperparathyroidism--MEN1, MEN2, HPT-JT, FHH, FIHPT]. Dtsch Med Wochenschr 2011; 136:1889-94. [PMID: 21915802 DOI: 10.1055/s-0031-1286358] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
OBJECTIVE The challenge in diagnosing primary hyperparathyroidism (HPT) is to detect hereditary cases before first surgery. About 5% of cases are hereditary and integral component of multiple endocrine neoplasia type 1 and 2 (MEN1/MEN2), hyperparathyroidism-jaw tumor syndrome (HPT-JT), familial hypocalciuric hypercalcemia (FHH), and familial isolated hyperparathyroidism (FIHPT). Aim of this study was to evaluate similarities and differences in hereditary varieties of HPT. PATIENTS 80 patients with hereditary HPT were evaluated in a retrospective analysis between 1980 and 2010 concerning clinical findings, family history, therapy, biochemical and molecular-genetic findings and follow-up. RESULTS 80 patients with hereditary HPT are described, 52 belonged to MEN1, 15 to MEN2, 7 to HPT-JT, 4 to FHH and 2 to FIHPT kindreds. Penetrance of HPT was highest in MEN1 (85%), followed by HPT-JT (64%), FHH (28.5%), and MEN2 (8%). Youngest age at diagnosis of HPT was 7 and 16 years in the MEN2/HPT-JT group. Serum Calcium was highest in the HPT-JT group (3.6 mM), recurrencies of HPT were highest in the MEN1 group (40.5%). Parathyroid cancer solely occurred in the HPT-JT group. In single cases HPT occurs in FHH. CONCLUSION Among the different varieties of hereditary HPT MEN1-HPT is most frequent and carries the utmost recurrence rate. Early diagnosis of HPT-JT syndrome is important because of the occurrence of parathyroid cancer. Single cases of HPT in FHH are described. Preoperative diagnosis of hereditary HPT has therapeutic consequences concerning extent of surgery and implications concerning patient and family care.
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ERβ-specific agonists and genistein inhibit proliferation and induce apoptosis in the large and small intestine. Carcinogenesis 2011; 32:1675-83. [PMID: 21856997 DOI: 10.1093/carcin/bgr188] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Epidemiological data indicate that intake of estrogens and isoflavones may be beneficial for the prevention of colorectal cancer (CRC). Based on this data, the aim of the study was to investigate estrogen receptor (ER) subtype-specific effects on intestinal homeostasis. Ovariectomized (OVX) female Wistar rats were either treated with 17β-estradiol (4 μg/kg body wt/day) (E2), an ERα-specific agonist (ALPHA) (10 μg/kg body wt/day), an ERβ-specific agonist (BETA) (100 μg/kg body wt/day) or genistein (GEN) (10 mg/kg body wt/day) for three weeks. Vehicle-treated OVX and SHAM animals and those cotreated with BETA and the pure antiestrogen Fulvestrant (ICI 182780) (100 μg/kg body wt/day and 3 mg/kg body wt/day) served as controls. GEN and BETA treatment but not E2 and ALPHA administration reduced proliferation in ileal and colonic mucosa cells. The rate of apoptosis in the small intestine and colon was increased by treatment with BETA and GEN, but not by E2. BETA induced antiproliferative and proapoptotic activity also in SHAM animals. The effects were antagonized by the pure antiestrogen Fulvestrant. Polymerase chain reaction gene array analysis revealed that BETA resulted in the downregulation of the oncogene transformation-related protein 63 (p63). Our data indicate that activation of the ERβ by specific ERβ agonists and GEN induces antiproliferative and proapoptotic effects in the intestinal tract. This observation can be taken as an indication that intake of GEN and specific ERβ agonists may protect the ileal and colonic epithelium from tumor development via modulation of tissue homeostasis.
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Are commonly recommended dosages for vitamin D supplementation too low? Vitamin D status and effects of supplementation on serum 25-hydroxyvitamin D levels--an observational study during clinical practice conditions. Osteoporos Int 2011; 22:231-40. [PMID: 20556359 DOI: 10.1007/s00198-010-1214-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2009] [Accepted: 01/19/2010] [Indexed: 12/14/2022]
Abstract
UNLABELLED Vitamin D deficiency is associated with increased fracture risk. The observational study aimed to investigate vitamin D status and supplementation in ambulatory patients. Only 20% of patients had optimal serum 25-hydroxyvitamin D [25(OH)D] levels. Commonly recommended dosages were insufficient to achieve clinically relevant increase of 25(OH)D levels. Higher dosages were safe and effective under clinical practice conditions. INTRODUCTION Vitamin D deficiency is associated with adverse health outcome. The study aimed to investigate vitamin D status and supplementation in ambulatory patients. METHODS Nine hundred seventy-five women and 188 men were evaluated for bone status from January 2008 to August 2008 within an observational study; 104 patients (n = 70 osteoporosis) received follow-up after 3 months. Dosage of vitamin D supplementation was documented and serum 25(OH)D and parathyroid hormone (PTH) determined. RESULTS In all patients (age, 60.4 ± 14.1 years), distribution of 25(OH)D was 56.3 ± 22.3 nmol/L (normal range, 52-182 nmol/L) and PTH 53.8 ± 67.5 ng/L (normal range, 11-43 ng/L). The proportion of patients with 25(OH)D < 25, 25 to <50, 50 to <75, ≥75 nmol/L was 7.5%, 33.3%, 38.9% and 20.2% in the total group and 20.1%, 38.5%, 30.8%, 10.6% at baseline in the follow-up group, respectively. After 3 months, 3.9% had still 25(OH)D < 25 nmol/L; only 12.5% achieved 25(OH)D ≥ 75 nmol/L. In osteoporosis patients, 25(OH)D increased more in those taking ≥1,500 (median, 3,000) IU vitamin D per day (33.1 ± 14.7 nmol/L) compared with ≤1,000 (median, 800) IU/day (10.6 ± 20.0 nmol/L) (p < 0.0008). PTH decreased more in patients taking ≥1,500 IU/day (-13.2 ± 15.2 ng/L) compared with ≤1,000 IU/day (-7.6 ± 19.2 ng/L; p = 0.29). 25(OH)D was negatively correlated to PTH (r = -0.49, p < 0.0001). An increase of 25(OH)D ≥ 75 nmol/L resulted in normalised PTH. CONCLUSION Supplementation with higher vitamin D dosages (2,000-3,000 IU/day) is required to achieve a relevant increase of 25(OH)D and normalisation of PTH.
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Tumor Models (In Vivo/In Vitro). Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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New Mutations in the RET Protooncogene-L881V – Associated with Medullary Thyroid Carcinoma and -R770Q – in a Patient with Mixed Medullar/Follicular Thyroid Tumour. Exp Clin Endocrinol Diabetes 2009; 118:550-3. [DOI: 10.1055/s-0029-1241851] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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[(13)C]Methionine breath test as a marker for hepatic mitochondrial function in HIV-infected patients. AIDS Res Hum Retroviruses 2009; 25:1243-8. [PMID: 20001311 DOI: 10.1089/aid.2009.0013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Metabolic disturbances such as dyslipidemia, lipodystrophy syndrome, visceral obesity, hyperlactatemia, diabetes mellitus, and hepatic steatosis have been recognized as serious complications in long-term antiretroviral-treated HIV-infected patients. The oxidative capacity of liver mitochondria plays a central role in their pathogenesis and can be analyzed using the [(13)C]methionine breath test. We analyzed hepatic mitochondrial function using the [(13)C]methionine breath test in antiretrovirally treated and untreated HIV-infected patients as well as HIV-negative controls. Patients with hepatic steatosis, hypertriglyceridemia, lipohypertrophy, and older age showed reduced methionine metabolism. Hepatic mitochondrial function is impaired in antiretroviral-treated HIV-infected patients with disturbances of lipid metabolism.
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Photonic crystal fiber with a dual-frequency addressable liquid crystal: behavior in the visible wavelength range. OPTICS EXPRESS 2008; 16:19375-19381. [PMID: 19582031 DOI: 10.1364/oe.16.019375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Wave-guiding in the visible spectral range is investigated for a micro-structured crystal fiber filled with a dual-frequency addressable nematic liquid crystal mixture. The fiber exhibits a solid core surrounded by just 4 rings of cylindrical holes. Control of the liquid crystal alignment by anchoring agents permits relatively low attenuation. Samples with different anchoring conditions at the interface of the silica glass and the liquid crystal show different transmission properties and switching behavior. Polarization dependent and independent fiber optic switching is observed. Due to a dualfrequency addressing scheme, active switching to both states with enhanced and reduced transmission becomes possible for planar anchoring. Even a non-perfect fiber shows reasonable transmission and a variety of interesting effects.
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In-plane stress and strain components of epitaxially grown Zn:LiNbO 3thin films. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308081956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Current status of intraoperative real-time vibrography in neurosurgery. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2007; 28:493-497. [PMID: 17918047 DOI: 10.1055/s-2006-927359] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
PURPOSE Intracranial lesions are often characterized by different elasticities. The aim of the present study was to test the application of vibrography during brain tumor surgery. MATERIALS AND METHODS The real-time vibrography system consisted of a conventional ultrasound system (Siemens Sonoline Omnia) with a custom-designed RF interface and a 6.5-MHz endocavity curved array (Siemens 6.5EC10). The RF data were digitized using a 50-MHz, 12-bit PCI analog/digital (A/D) converter for real-time or offline processing. Static compression was replaced by low-frequency axial vibration of the probe. A special applicator equipped with a stepping motor moved the ultrasonic probe and produced a low frequency mechanical vibration of 5-10 Hz with a vibration amplitude of 0.3 mm and slight preliminary compression (total<1 mm). The maximum application time was 60 sec. A pneumatic holding device (Unitrac, Aesculap, Tuttlingen, Germany) was used. RESULTS Brain tissue is normally color coded between red and orange. In this study 41 out of 45 tumors could be detected via vibrography. Two tumors could not be detected with this imaging technique: a glioblastoma at a depth of 2 cm and a metastasis at a depth of 3 cm. Two additional tumors were not recognized because of technical problems. In 4 cases tumors with strain values identical to those in brain tissue (coded red or orange) but easily identified by a peripheral zone of high strain (yellow) were found. Tumors with strain values higher than those measured in brain tissue coded yellow and were softer than brain during surgical intervention. Higher strain was found in 23 tumors. Tumors with strain values lower than those in cerebral tissue were found to be harder during surgery and coded brown or black. Lower strain was found in 10 cases. Four tumors were inhomogeneous and could not be assigned to one of the above groups. Mortality was 0%, morbidity 2.3%. One patient displayed transient paresis of the lower extremity due to microsurgical difficulties during the approach. In one patient minimal bleeding of the cortical surface occurred in a frontobasal tumor; however, no postoperative deficits were noted. CONCLUSION Vibrography is a new low-risk technique for intraoperative imaging. In low-grade astrocytomas and oligodendrogliomas, this additional technique can be used to control resection. In other cortical and subcortical tumors (e. g. metastases), it can provide an impression of the intratumoral elasticities.
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