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Scheckel B, Naumann M, Simic D, Stock S, Loose O, Breig M, Albrecht K, Braun K, Kucher R, Deininger S, Schmid L, John M, Grohnert A, Giertz C, Wirth T. Supplementary orthopaedic screening for children and adolescents to prevent permanent skeletal deformities - protocol for the "OrthoKids" study. BMC Musculoskelet Disord 2023; 24:887. [PMID: 37964234 PMCID: PMC10647053 DOI: 10.1186/s12891-023-07023-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/06/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Skeletal deformities (SD) in children and adolescents can lead to arthritic conditions, impairment of quality of life, and high treatment costs in the long term. However, comprehensive data on the prevalence of SDs in children and adolescents are limited and it remains therefore unclear whether there is a healthcare gap. "OrthoKids" is a project that addresses this evidence gap by implementing an orthopaedic screening for children and adolescents that supplements existing detection examinations within statutory standard care in Germany. OBJECTIVE To detect SDs so that they can be treated as needed at an early stage. METHODS The implementation of the supplementary orthopaedic screening will be evaluated through an exploratory cohort study that is set up in the German state Baden-Wuerttemberg. 20,000 children and adolescents aged 10 to 14 years will be recruited as a prospective cohort. A retrospective control cohort will be formed based on claims data provided by two cooperating statutory health insurances (SHIs). Participating children and adolescents receive a one-time orthopaedic screening. If at least one SD is diagnosed, treatment will be provided as part of the statutory standard care. Within the scope of the project, a follow-up examination will be performed after one year. An IT-platform will complement the study. The primary outcome measure is the point prevalence of scoliosis, genu varum/valgum, hip dysplasia, and flat feet. Secondary outcome measures are (i) the point prevalence of further less common SDs, (ii) health-related quality of life (HRQoL), (iii) sports ability based on activity (physical/athletic), physical constraints, and (sports) injuries, as well as (iv) monetary consequences of the orthopaedic screenings' implementation. Implementation determinants will be evaluated, too. DISCUSSION If the supplementary orthopaedic screening proves to be viable, it could be considered as a supplementary examination for children and adolescents within the frame of SHI in Germany. This could relieve the burden of disease among children and adolescents with SDs. In addition, it could disburden SHIs in the medium to long term. TRIAL REGISTRATION The OrthoKids study was registered in the German Clinical Trials Registry (Deutsches Register Klinischer Studien (DRKS)) on 26th July 2022 under the number 00029057.
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Affiliation(s)
- B Scheckel
- Institute for Health Economics and Clinical Epidemiology (IGKE), Faculty of Medicine, University Hospital Cologne, University of Cologne, Gleueler Straße 176-178, 50935, Cologne, Germany.
| | - M Naumann
- Institute for Health Economics and Clinical Epidemiology (IGKE), Faculty of Medicine, University Hospital Cologne, University of Cologne, Gleueler Straße 176-178, 50935, Cologne, Germany.
| | - D Simic
- Institute for Health Economics and Clinical Epidemiology (IGKE), Faculty of Medicine, University Hospital Cologne, University of Cologne, Gleueler Straße 176-178, 50935, Cologne, Germany
| | - S Stock
- Institute for Health Economics and Clinical Epidemiology (IGKE), Faculty of Medicine, University Hospital Cologne, University of Cologne, Gleueler Straße 176-178, 50935, Cologne, Germany
| | - O Loose
- Department of Orthopaedics, Olgahospital, Klinikum Stuttgart, Kriegsbergstraße 62, 70174, Stuttgart, Germany
| | - M Breig
- Department of Orthopaedics, Olgahospital, Klinikum Stuttgart, Kriegsbergstraße 62, 70174, Stuttgart, Germany
| | - K Albrecht
- Department of Orthopaedics, Olgahospital, Klinikum Stuttgart, Kriegsbergstraße 62, 70174, Stuttgart, Germany
| | - K Braun
- Association of Statutory Health Insurance Physicians Baden-Wuerttemberg (KVBW), Albstadtweg 11, 70567, Stuttgart, Germany
| | - R Kucher
- Association of Statutory Health Insurance Physicians Baden-Wuerttemberg (KVBW), Albstadtweg 11, 70567, Stuttgart, Germany
| | - S Deininger
- Association of Statutory Health Insurance Physicians Baden-Wuerttemberg (KVBW), Albstadtweg 11, 70567, Stuttgart, Germany
| | - L Schmid
- Association of Statutory Health Insurance Physicians Baden-Wuerttemberg (KVBW), Albstadtweg 11, 70567, Stuttgart, Germany
| | - M John
- Fraunhofer Institute for Open Communication Systems (FOKUS), Kaiserin-Augusta-Allee 31, 10589, Berlin, Germany
| | - A Grohnert
- Fraunhofer Institute for Open Communication Systems (FOKUS), Kaiserin-Augusta-Allee 31, 10589, Berlin, Germany
| | - C Giertz
- Fraunhofer Institute for Open Communication Systems (FOKUS), Kaiserin-Augusta-Allee 31, 10589, Berlin, Germany
| | - T Wirth
- Department of Orthopaedics, Olgahospital, Klinikum Stuttgart, Kriegsbergstraße 62, 70174, Stuttgart, Germany
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Kennedy WR, Chang YW, Jiang J, Molloy J, Pennington-Krygier C, Harmon J, Hong A, Wanebo J, Braun K, Garcia MA, Barani IJ, Yoo W, Tovmasyan A, Tien AC, Li J, Mehta S, Sanai N. A Combined Phase 0/2 "Trigger" Trial Evaluating Pamiparib or Olaparib with Concurrent Radiotherapy in Patients with Newly-Diagnosed or Recurrent Glioblastoma. Int J Radiat Oncol Biol Phys 2023; 117:e115. [PMID: 37784657 DOI: 10.1016/j.ijrobp.2023.06.898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) This study evaluates the pharmacokinetic (PK) and pharmacodynamic (PD) profiles and clinical efficacy of PARP1/2 selective inhibitors, pamiparib and olaparib, in newly-diagnosed or recurrent glioblastoma (GBM) patients in combination with radiotherapy (RT). MATERIALS/METHODS In this combined phase 0/2 trial presumed newly-diagnosed (Arm A) or recurrent (Arm B) GBM patients received 4 days of pamiparib (60 mg BID) prior to resection either 2-4 or 8-12 hours following the final dose. Arm C enrolled patients with recurrent GBM to 4 days of olaparib (200 mg BID) prior to resection. Enhancing and nonenhancing tumor tissue, cerebrospinal fluid (CSF) and plasma were collected. Total and unbound drug concentrations were measured using validated LC-MS/MS methods. A PK 'trigger', defined as unbound drug and gt; 5-fold biochemical IC 50 in nonenhancing tumor, determined eligibility for the therapeutic expansion phase 2. PARP inhibition was assessed via ex vivo radiation and quantification of PAR levels compared to non-radiated control. Newly-diagnosed MGMT unmethylated GBMs and recurrent GBMs exceeding the PK threshold were eligible for an expansion phase of pamiparib (Arms A and B) or olaparib (Arm C) with concurrent RT followed by maintenance pamiparib or olaparib. RT was 60 Gy in 30 fractions in newly-diagnosed patients and 40 Gy in 15 fractions in recurrent patients, delivered using volumetric-modulated arc therapy (VMAT). RESULTS A total of 38 patients (Arm A, n = 16; Arm B, n = 16; Arm C, n = 6) were enrolled in the initial phase 0 study. The mean unbound concentrations of pamiparib in nonenhancing tumor region for Arm A and Arm B were 167.3 nM and 109.4 nM respectively, and in Arm C the mean unbound concentration of olaparib was 5.2 nM. All patients in the pamiparib arms (n = 32/32) but only 1 of 6 patients in the olaparib Arm C exceeded the PK threshold. Radiation-induced PAR expression was 2.44-fold in untreated control vs 1.16 in Arm A (p<0.05), 0.85 in Arm B (p<0.01) and 1.11 in Arm C patients, respectively. In Arm A, 11 patients had unmethylated tumors, and of those, 7 patients enrolled in phase 2. In Arm B, 9 of the 16 clinically eligible patients with positive PK results were enrolled in phase 2. At a median follow-up of 8.4 months [range: 1.3-15.7 months], the median progression-free survival (PFS) was 5.4, 6.0, and 3.8 months for Arms A (n = 7), B (n = 9), and C (n = 1), respectively. Grade 3+ toxicities related to pamiparib occurred in 4 patients, with 2 adverse events resulting in treatment discontinuation. No grade 3+ toxicities were documented in the olaparib arm. CONCLUSION Pamiparib achieved pharmacologically-relevant concentrations in nonenhancing GBM tissue and suppressed induction of PAR levels ex vivo post-radiation. The majority of patients with MGMT-unmethylated GBM advanced to the phase 2 portion of the trial, and pamiparib was generally well-tolerated in these patients.
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Affiliation(s)
- W R Kennedy
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - Y W Chang
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - J Jiang
- Wayne State University, Detroit, MI
| | - J Molloy
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | | | - J Harmon
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - A Hong
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - J Wanebo
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - K Braun
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - M A Garcia
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - I J Barani
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - W Yoo
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - A Tovmasyan
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - A C Tien
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - J Li
- Wayne State University, Detroit, MI
| | - S Mehta
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - N Sanai
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
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Kennedy WR, Margaryan T, Molloy J, Knight W, Harmon J, Hong A, Wanebo J, Braun K, Garcia MA, Barani IJ, Yoo W, Tien AC, Tovmasyan A, Mehta S, Sanai N. A Combined Phase 0/2 "Trigger" Trial of Niraparib in Combination with Radiation in Patients with Newly-Diagnosed Glioblastoma. Int J Radiat Oncol Biol Phys 2023; 117:S86-S87. [PMID: 37784592 DOI: 10.1016/j.ijrobp.2023.06.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Poly ADP-ribose (PAR) polymerase (PARP) mediates DNA damage response. Niraparib is an investigational PARP1/2-selective inhibitor. We conducted a combined phase 0/2 study to evaluate niraparib pharmacokinetics (PK) and pharmacodynamics (PD) in patients with newly-diagnosed glioblastoma (GBM), graduating patients to a phase 2 study evaluating a therapeutic regimen of niraparib with concurrent conventionally-fractionated radiotherapy (RT) in O6-methylguanine methyltransferase (MGMT) unmethylated tumors exceeding a prespecified PK threshold in non-enhancing tumor. MATERIALS/METHODS Patients with presumed newly-diagnosed GBM were enrolled in a phase 0 study receiving 4 days of niraparib (300 or 200 mg QD) prior to planned resection 3-5 or 8-12 hours following the last dose. Tumor tissue (enhancing and non-enhancing regions), cerebrospinal fluid (CSF), and plasma were collected. Total and unbound niraparib concentrations were measured using validated LC-MS/MS methods. PARP inhibition was assessed by quantification of PAR induction after 10 Gy ex vivo irradiation in surgical tissue compared to non-irradiated control tissue. A PK 'trigger' determined eligibility for the therapeutic phase 2 expansion portion of the study. This was defined as unbound [niraparib] > 5-fold biochemical IC50 (i.e., 19 nM) in non-enhancing tumor. Patients with MGMT unmethylated tumors exceeding this PK threshold were eligible for expansion phase dosing of niraparib with concurrent RT followed by a maintenance phase of niraparib. Patients with MGMT methylated tumors were not eligible for the expansion phase and proceeded with temozolomide (TMZ) plus RT followed by maintenance TMZ. RT dose was 60 Gy in 30 fractions using volumetric-modulated arc therapy (VMAT). RESULTS All 29 patients enrolled in the phase 0 portion of the study met the PK threshold. In non-enhancing regions, the mean unbound concentration of niraparib was 258.2 nM. The suppression of PAR levels after ex vivo RT was observed in 79% of the patients (17/22). Sixteen patients had unmethylated tumors, and of those, 11 patients enrolled in phase 2. Five of the 6 initial patients enrolled in phase 2 experienced thrombocytopenia related to niraparib, and 3/5 cases were deemed serious and life-threatening. Consequently, starting dose in both phases was lowered to 200 mg, and no serious AEs were observed thereafter. At a median follow-up of 8.1 months [range: 6.0-12.9 months], 6-month PFS was 64% with 4 patients remaining on treatment and 5 patients ongoing survival follow-up. CONCLUSION Niraparib achieves pharmacologically-relevant concentrations in non-enhancing, newly-diagnosed GBM tissue in excess of any other studied PARP inhibitor. When delivered with concurrent RT, niraparib was well-tolerated, with low rates of grade 3+ toxicity. Initial clinical efficacy data are encouraging.
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Affiliation(s)
- W R Kennedy
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - T Margaryan
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - J Molloy
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - W Knight
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - J Harmon
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - A Hong
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - J Wanebo
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - K Braun
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - M A Garcia
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - I J Barani
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - W Yoo
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - A C Tien
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - A Tovmasyan
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - S Mehta
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
| | - N Sanai
- Ivy Brain Tumor Center, Barrow Neurological Institute, Phoenix, AZ
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Leithäuser N, Adelhütte D, Braun K, Büsing C, Comis M, Gersing T, Johann S, Koster AMCA, Krumke SO, Liers F, Schmidt E, Schneider J, Streicher M, Tschuppik S, Wrede S. Decision-support systems for ambulatory care, including pandemic requirements: using mathematically optimized solutions. BMC Med Inform Decis Mak 2022; 22:132. [PMID: 35568837 PMCID: PMC9106987 DOI: 10.1186/s12911-022-01866-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/27/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The healthcare sector poses many strategic, tactic and operational planning questions. Due to the historically grown structures, planning is often locally confined and much optimization potential is foregone. METHODS We implemented optimized decision-support systems for ambulatory care for four different real-world case studies that cover a variety of aspects in terms of planning scope and decision support tools. All are based on interactive cartographic representations and are being developed in cooperation with domain experts. The planning problems that we present are the problem of positioning centers for vaccination against Covid-19 (strategical) and emergency doctors (strategical/tactical), the out-of-hours pharmacy planning problem (tactical), and the route planning of patient transport services (operational). For each problem, we describe the planning question, give an overview of the mathematical model and present the implemented decision support application. RESULTS Mathematical optimization can be used to model and solve these planning problems. However, in order to convince decision-makers of an alternative solution structure, mathematical solutions must be comprehensible and tangible. Appealing and interactive decision-support tools can be used in practice to convince public health experts of the benefits of an alternative solution. The more strategic the problem and the less sensitive the data, the easier it is to put a tool into practice. CONCLUSIONS Exploring solutions interactively is rarely supported in existing planning tools. However, in order to bring new innovative tools into productive use, many hurdles must be overcome.
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Affiliation(s)
- Neele Leithäuser
- Fraunhofer ITWM, Fraunhofer-Platz 1, 67663, Kaiserslautern, Germany.
| | | | - Kristin Braun
- FAU Erlangen, Cauerstraße 11, 91058, Erlangen, Germany
| | - Christina Büsing
- RWTH Aachen University, Pontdriesch 10-12, 52062, Aachen, Germany
| | - Martin Comis
- RWTH Aachen University, Pontdriesch 10-12, 52062, Aachen, Germany
| | - Timo Gersing
- RWTH Aachen University, Pontdriesch 10-12, 52062, Aachen, Germany
| | - Sebastian Johann
- TU Kaiserslautern, Gottlieb-Daimler-Straße 47, 67663, Kaiserslautern, Germany
| | | | - Sven O Krumke
- TU Kaiserslautern, Gottlieb-Daimler-Straße 47, 67663, Kaiserslautern, Germany
| | - Frauke Liers
- FAU Erlangen, Cauerstraße 11, 91058, Erlangen, Germany
| | - Eva Schmidt
- TU Kaiserslautern, Gottlieb-Daimler-Straße 47, 67663, Kaiserslautern, Germany
| | | | - Manuel Streicher
- TU Kaiserslautern, Gottlieb-Daimler-Straße 47, 67663, Kaiserslautern, Germany
| | | | - Sophia Wrede
- RWTH Aachen University, Pontdriesch 10-12, 52062, Aachen, Germany
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Ajovalasit A, Redondo-Gómez C, Sabatino MA, Okesola BO, Braun K, Mata A, Dispenza C. Carboxylated-xyloglucan and peptide amphiphile co-assembly in wound healing. Regen Biomater 2021; 8:rbab040. [PMID: 34386265 PMCID: PMC8355605 DOI: 10.1093/rb/rbab040] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 06/14/2021] [Accepted: 06/23/2021] [Indexed: 12/13/2022] Open
Abstract
Hydrogel wound dressings can play critical roles in wound healing protecting the wound from trauma or contamination and providing an ideal environment to support the growth of endogenous cells and promote wound closure. This work presents a self-assembling hydrogel dressing that can assist the wound repair process mimicking the hierarchical structure of skin extracellular matrix. To this aim, the co-assembly behaviour of a carboxylated variant of xyloglucan (CXG) with a peptide amphiphile (PA-H3) has been investigated to generate hierarchical constructs with tuneable molecular composition, structure, and properties. Transmission electron microscopy and circular dichroism at a low concentration shows that CXG and PA-H3 co-assemble into nanofibres by hydrophobic and electrostatic interactions and further aggregate into nanofibre bundles and networks. At a higher concentration, CXG and PA-H3 yield hydrogels that have been characterized for their morphology by scanning electron microscopy and for the mechanical properties by small-amplitude oscillatory shear rheological measurements and compression tests at different CXG/PA-H3 ratios. A preliminary biological evaluation has been carried out both in vitro with HaCat cells and in vivo in a mouse model.
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Affiliation(s)
- Alessia Ajovalasit
- Dipartimento di Ingegneria (DI), Università degli Studi di Palermo, Viale delle Scienze, Edificio 6, Palermo 90128, Italy
- School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK
| | - Carlos Redondo-Gómez
- School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK
| | - Maria Antonietta Sabatino
- Dipartimento di Ingegneria (DI), Università degli Studi di Palermo, Viale delle Scienze, Edificio 6, Palermo 90128, Italy
| | - Babatunde O Okesola
- School of Engineering & Materials Science, Queen Mary University of London, London E1 4NS, UK
- Institute of Bioengineering, Queen Mary University of London, London E1 4NS, UK
| | - Kristin Braun
- Blizard Institute, Barts and The London School of Medicine and Dentistry, The Blizard Building, 4 Newark Street, London E1 2AT, UK
| | - Alvaro Mata
- School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
- Department of Chemical and Environmental Engineering, University of Nottingham, Nottingham NG7 2RD, UK
- Biodiscovery Institute, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Clelia Dispenza
- Dipartimento di Ingegneria (DI), Università degli Studi di Palermo, Viale delle Scienze, Edificio 6, Palermo 90128, Italy
- Istituto di Biofisica (IBF), Consiglio Nazionale Delle Ricerche (CNR), Via U. La Malfa 153, Palermo 90146, Italy
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Cohen AM, Braun K, Hübner N, Scherner PV, Jurkat HB. [Influencing factors on stress management in medical students-with special consideration of depression]. Nervenarzt 2021; 93:468-475. [PMID: 34487197 DOI: 10.1007/s00115-021-01183-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/02/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Due to high levels of stress, a practical course on stress management in medical school was offered to preclinical medical students at the Justus-Liebig University in Giessen up to 2019. In addition to autogenic training with specific resolution formulas, learning strategies, examination anxiety, and stress management were taught. OBJECTIVE The aim was to determine the factors influencing the efficacy of the course as well as predictive factors favoring the success of preventive strategies for medical students. METHODS A total of 81 medical students with an average age of M = 25.4 years participated in this study, with 32.1% being male. The pre-post surveys were conducted anonymously with PSQ, BDI, PHQ‑9, HADS, SF-12 and the STQL‑S. RESULTS With respect to satisfaction, stress, anxiety, and depression, a significant improvement was achieved at high effect levels (Cohen's d > 1). Initially, 35% of the students suffered from clinically relevant depression; these also showed a significantly higher stress level at the end of the course. This also applies to students with low study or life satisfaction. There were significant interactions of stress reduction depending on the existence of adequate learning techniques as well as anxiety symptoms but less often due to the existence of adequate stress management strategies. CONCLUSION As predictive factors against a high stress level in medical students, a high study satisfaction and a high life satisfaction as well as low depression values could be confirmed. Relevant factors contributing to the efficacy of the course are learning strategies and coping with examination phobia. Theoretical information concerning stress management was found to be less helpful.
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Affiliation(s)
- A M Cohen
- Klinik für Psychosomatik und Psychotherapie, Fachbereich Medizin, Justus-Liebig-Universität Gießen, Friedrichstraße 33, 35392, Gießen, Deutschland
| | - K Braun
- Klinik für Psychosomatik und Psychotherapie, Fachbereich Medizin, Justus-Liebig-Universität Gießen, Friedrichstraße 33, 35392, Gießen, Deutschland
| | - N Hübner
- Klinik für Psychosomatik und Psychotherapie, Fachbereich Medizin, Justus-Liebig-Universität Gießen, Friedrichstraße 33, 35392, Gießen, Deutschland
| | - P V Scherner
- Klinik für Psychosomatik und Psychotherapie, Fachbereich Medizin, Justus-Liebig-Universität Gießen, Friedrichstraße 33, 35392, Gießen, Deutschland
| | - H B Jurkat
- Klinik für Psychosomatik und Psychotherapie, Fachbereich Medizin, Justus-Liebig-Universität Gießen, Friedrichstraße 33, 35392, Gießen, Deutschland.
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Edenharter G, Gartner D, Heim M, Martin J, Pfeiffer U, Vogt F, Braun K, Pförringer D. Delay of transfer from the intensive care unit: a prospective observational analysis on economic effects of delayed in-house transfer. Eur J Med Res 2019; 24:30. [PMID: 31481124 PMCID: PMC6720386 DOI: 10.1186/s40001-019-0388-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/08/2019] [Indexed: 12/18/2022] Open
Abstract
Background Intensive care unit (ICU) capacity is a scant and precious resource in hospitals. Therefore, an optimal occupancy rate as well as detailed occupation planning is of great importance. Most literature deals with admission to the ICU, while only few discuss discharge from the ICU. Specifically, a delay of transfer from the ICU can cause a shortness of beds, jeopardize urgent patient treatment and lead to a decrease in treatment quality as well as economic downsides. This study examined the incidence, costs and reasons for delayed discharge from the ICU and analyzed the influence of the department the patient was admitted to. Methods Over the course of 12 months, the discharges of all 1643 patients of two surgical intensive care units of a large academic medical center were analyzed. Delay in minutes and reasons were recorded and translated into financial figures. A univariate logistic regression model was developed to evaluate the impact of length of stay at the ICU, age, gender, subspecialty and specific ICU on the delay of transfer. In a next step, significant factors of the univariate logistic regression were incorporated into a multivariate regression model. Results In 326 out of 1312 patients ready for discharge (24.8%), the transfer to the floor was delayed. Time of delay for all patients added up to a total of 265,691 min in 1 year. The application of the internal cost allocation, in which 1 min corresponds to 0.75 Euro cents, led to costs of 199,268 Euros (~ $240,000) for the study period. In 91.7% of the cases, the reason for the delay was the lack of an available or appropriate bed on the regular ward. Multivariate regression analysis revealed that the type of department the patient is admitted to poses a significantly influencing factor for delayed discharge from the ICU. Conclusion Delay in discharge from the ICU is a common problem of economic relevance. The main reason is a lack of appropriate floor beds. Patients from certain specific departments are at a higher risk to be discharged with delay. A solution to this problem lies in the focus on the downstream units. A proper use of the scarce resources is to be pursued because of ethical as well as economic reasons in an increasingly aging population.
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Affiliation(s)
- G Edenharter
- Klinikum rechts der Isar, Technische Universität München, Klinik für Anästhesiologie, Munich, Germany
| | - D Gartner
- School of Mathematics, Cardiff University, Cardiff, UK
| | - M Heim
- Klinikum rechts der Isar, Technische Universität München, Klinik für Anästhesiologie, Munich, Germany
| | - J Martin
- Klinikum rechts der Isar, Technische Universität München, Klinik für Anästhesiologie, Munich, Germany
| | - U Pfeiffer
- Klinikum rechts der Isar, Technische Universität München, Klinik für Anästhesiologie, Munich, Germany
| | - F Vogt
- Department of Cardiac Surgery, Paracelsus Medical University, Nuremberg, Germany
| | - K Braun
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675, Munich, Germany
| | - D Pförringer
- Klinikum rechts der Isar, Technische Universität München, Klinik und Poliklinik für Unfallchirurgie, Ismaninger Str. 22, 81675, Munich, Germany.
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Chen D, Ferguson I, Braun K, Miller C, Ley T. LB1135 Altered cell populations in Dnmt3a-deficient murine epidermis. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.06.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Delforge X, Kongolo G, Cauliez A, Braun K, Haraux E, Buisson P. Transient pseudohypoaldosteronism: a potentially severe condition affecting infants with urinary tract malformation. J Pediatr Urol 2019; 15:265.e1-265.e7. [PMID: 30962012 DOI: 10.1016/j.jpurol.2019.03.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/01/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND Secondary pseudohypoaldosteronism (S-PHA) is a life-threatening condition affecting young children with urinary tract malformation (UTM). OBJECTIVE The aim of the study was to highlight the diagnosis of S-PHA in children with UTM and propose appropriate management. STUDY DESIGN The authors retrospectively reviewed cases of S-PHA related to UTM observed at the institution and searched the PubMed® database to review the literature. RESULTS A total of 116 cases of S-PHA associated with UTM, including the four cases from the institution, were reviewed. One hundred six cases (92.2%) were younger than 6 months, and 95 cases (81.9%) occurred in boys. Urinary tract infection was associated in 105 cases (90.5%). All types of UTM were observed. In the absence of urinary tract infection, S-PHA was related to bilateral UTM or solitary kidney. In 89 cases (76.5%), S-PHA resolved with medical treatment only. In cases of UTM requiring immediate surgery, electrolyte imbalance related to S-PHA also resolved after surgery. Children with associated urinary tract infection and bilateral UTM are at higher risk of developing S-PHA. DISCUSSION The pathogenesis of S-PHA has not been fully elucidated. Renal tubular immaturity may be one of the factors involved, in view of the young age of the population being affected. A high rate of bilateral UTM (or UTM on solitary kidney) was observed (50.9%), suggesting an association with S-PHA. In the absence of urinary tract infection (UTI), S-PHA appeared to occur more frequently in the presence of bilateral UTM. Although the indication for early surgery remains unclear, it may have a role in the prevention of UTI and prevention of recurrence of S-PHA. Serum electrolytes should be checked in children with UTM before urological surgery, and/or presenting urinary tract infection, before the age of 6 months. The results of this study must be interpreted cautiously because of its retrospective nature and the fact that data were derived from various articles. Few articles on S-PHA related to UTM have been published in the literature. To the best of the authors' knowledge, the study constitutes the largest series published to date. CONCLUSIONS S-PHA results in potentially severe electrolyte imbalance and affects children younger than 6 months with UTI and/or UTM. Electrolyte abnormalities related to S-PHA often resolve after administration of appropriate intravenous electrolyte solution and treatment of UTI and/or surgery.
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Affiliation(s)
- X Delforge
- Department of Pediatric Urology, CHU Amiens, France.
| | - G Kongolo
- Department of Pediatric Intensive Care Unit, CHU Amiens, France
| | - A Cauliez
- Department of Pediatric Endocrinology, CHU Amiens, France
| | - K Braun
- Department of Pediatric Endocrinology, CHU Amiens, France
| | - E Haraux
- Department of Pediatric Urology, CHU Amiens, France
| | - P Buisson
- Department of Pediatric Urology, CHU Amiens, France
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Deutsch T, Winter M, Lippmann S, Geier AK, Braun K, Frese T. Willingness, concerns, incentives and acceptable remuneration regarding an involvement in teaching undergraduates - a cross-sectional questionnaire survey among German GPs. BMC Med Educ 2019; 19:33. [PMID: 30683085 PMCID: PMC6347773 DOI: 10.1186/s12909-018-1445-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 12/28/2018] [Indexed: 05/15/2023]
Abstract
BACKGROUND Worldwide, many undergraduate general practice curricula include community-based courses at general practitioners' (GPs') offices. Usually the academic general practice departments collaborate with networks of affiliated teaching practices. To successfully master the challenge of network development and extension, more information is needed about GPs' willingness to be involved in different teaching formats, important influencing factors, incentives, barriers, and the need for financial compensation. METHODS In this cross-sectional study a questionnaire survey was conducted among all GPs working in Leipzig and environs (German postal code area 04). In addition to descriptive statistics, group comparisons and logistic regression were performed to reveal differences between GPs with and without an interest in teaching. RESULTS Response rate was 45.3% with 339 analyzable questionnaires. The average age was 52.0 years and 58.4% were women. Sixty-two participants stated that they were already involved in teaching undergraduates. Altogether 60.1% of all GPs and 53.5% among those who didn't teach yet were basically interested in being involved in undergraduate education. The interested GPs could imagine devoting on average 6.9 h per month to teaching activities. GPs interested in teaching were on average younger, were more actively involved in continuing education and professional associations, and more frequently had pre-existing teaching experiences. The willingness to teach differed substantially among teaching formats. GPs were more willing to teach at their own practices rather than at university venues and they preferred skills-oriented content. Comprehensive organization on the part of the university including long-term scheduling and available teaching materials was rated as most important to increase the attractiveness of teaching. Time restraints and decreased productivity were rated as the most important barriers. Interested GPs appreciated financial compensation, particularly for teaching at university venues, and demanded amounts of money corresponding to German GPs' hourly income. CONCLUSIONS The GPs' interest in undergraduate teaching is generally high indicating a substantial pool of potential preceptors. Recruitment strategies should consider the collaboration with institutions involved in residency and continuing education as well as with professional associations. Comprehensive organization by the responsible department should be promoted and time restraints and decreased productivity should be overtly addressed and financially compensated.
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Affiliation(s)
- Tobias Deutsch
- Department of General Practice, Medical Faculty, University of Leipzig, Leipzig, Germany
| | - Marcus Winter
- Department of General Practice, Medical Faculty, University of Leipzig, Leipzig, Germany
- Institute of General Practice and Family Medicine, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
| | - Stefan Lippmann
- Department of General Practice, Medical Faculty, University of Leipzig, Leipzig, Germany
| | - Anne-Kathrin Geier
- Department of General Practice, Medical Faculty, University of Leipzig, Leipzig, Germany
| | - Kristin Braun
- Institute of General Practice and Family Medicine, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
| | - Thomas Frese
- Institute of General Practice and Family Medicine, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
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Landisch RM, Hanson SJ, Punzalan RC, Braun K, Cassidy LD, Gourlay DM. Efficacy of surveillance ultrasound for venous thromboembolism diagnosis in critically ill children after trauma. J Pediatr Surg 2018; 53:2195-2201. [PMID: 29997028 DOI: 10.1016/j.jpedsurg.2018.06.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 05/14/2018] [Accepted: 06/10/2018] [Indexed: 10/28/2022]
Abstract
INTRODUCTION Venous thromboembolism (VTE) is increasingly prevalent in injured children admitted to the intensive care unit (ICU). Few data exist to support VTE pharmacologic prophylaxis or ultrasound (US) surveillance in children with high bleeding risk. After implementation of screening US guidelines, we sought to describe our experience, hypothesizing that screening US of children at highest risk for VTE results in earlier detection and management. STUDY DESIGN A retrospective analysis was conducted on prospectively collected data of injured children admitted to an American College of Surgeons Verified level 1 Pediatric Trauma Center from 2010 to 2015. In patients at high risk for both VTE and bleeding (HRHR), guidelines recommended deferral of pharmacologic prophylaxis and a screening US at ≥7 ICU days if bleeding risk remained. Outcomes analyzed included VTE rates, guideline compliance, and US timing. The rate of deep vein thrombosis (DVT) detection (number of DVT captured/number of US obtained) was examined. RESULTS Of 4061 trauma patients, 588 (14.5%) were critically injured including 112 patients who met HRHR criteria. The rate of VTE in the HRHR group ≥7 ICU days was 25% (14/56). Of 23 VTE diagnosed in the ICU, 17 were detected by 49 US performed (34.7%), with the remaining 6 diagnosed by computed tomography. DVT was detected earlier than the US guideline recommended 7 days, independent of symptoms. Guideline compliance was 86%. CONCLUSION Critically injured children at risk for bleeding frequently develop VTE. Surveillance ultrasound in patients at high risk for both VTE and bleeding allows earlier detection and treatment. LEVEL OF EVIDENCE Therapeutic study, level II.
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Affiliation(s)
| | - Sheila J Hanson
- Department of Pediatrics, Division of Critical Care, The Children's Hospital of Wisconsin.
| | - Rowena C Punzalan
- Division of Hematology/Oncology, The Children's Hospital of Wisconsin.
| | - Kristin Braun
- Division of Pediatric Surgery, The Children's Hospital of Wisconsin.
| | - Laura D Cassidy
- Institute for Health and Equity, The Medical College of Wisconsin.
| | - David M Gourlay
- Division of Pediatric Surgery, The Children's Hospital of Wisconsin.
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Braun K, Dobak S, Anderson M, Stamatakos A, Peterson S. RDN Characteristics and Interest in Advanced Practice Residencies. J Acad Nutr Diet 2018. [DOI: 10.1016/j.jand.2018.06.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Braun LH, Braun K, Frey B, Wolpert SM, Löwenheim H, Zips D, Welz S. Unilateral cochlea sparing in locoregionally advanced head and neck cancer: a planning study. Strahlenther Onkol 2018; 194:1124-1131. [PMID: 30109361 DOI: 10.1007/s00066-018-1344-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Accepted: 07/19/2018] [Indexed: 12/01/2022]
Abstract
BACKGROUND Cochlea sparing can reduce late ototoxicity in head and neck cancer patients treated with cisplatin-based radiochemotherapy. In this situation, a mean cochlear dose (MCD) constraint of 10 Gy has been suggested by others based on the dose-effect relationship of clinical data. We aimed to investigate whether this is feasible for primary and postoperative radiochemotherapy in locoregionally advanced tumors without compromising target coverage. PATIENTS AND METHODS Ten patients treated with definitive and ten patients treated with adjuvant intensity-modulated radiotherapy (IMRT) and concurrent chemotherapy were investigated. The cochleae and a planning risk volume (PRV) with a 3 mm margin were newly delineated, whereas target volumes and other organs at risk were not changed. The initial plan was recalculated with a constraint of 10 Gy (MCD) on the low-risk side. The quality of the resulting plan was evaluated using the difference in the equivalent uniform dose (EUD). RESULTS A unilateral MCD of below 10 Gy could be achieved in every patient. The mean MCD was 6.8 Gy in the adjuvant cohort and 7.6 Gy in the definitive cohort, while the non-spared side showed a mean MCD of 18.7 and 30.3 Gy, respectively. The mean PRV doses were 7.8 and 8.4 Gy for the spared side and 18.5 and 29.8 Gy for the non-spared side, respectively. The mean EUD values of the initial and recalculated plans were identical. Target volume was not compromised. CONCLUSION Unilateral cochlea sparing with an MCD of less than 10 Gy is feasible without compromising the target volume or dose coverage in locoregionally advanced head and neck cancer patients treated with IMRT. A prospective evaluation of the clinical benefit of this approach as well as further investigation of the dose-response relationship for future treatment modification appears promising.
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Affiliation(s)
- L H Braun
- Universitätsklinik für Radioonkologie, Universitätsklinikum Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany
| | - K Braun
- Universitätsklinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Tübingen, Elfriede-Aulhorn-Straße 5, 72076, Tübingen, Germany.
| | - B Frey
- Universitätsklinik für Radioonkologie, Universitätsklinikum Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany
| | - S M Wolpert
- Universitätsklinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Tübingen, Elfriede-Aulhorn-Straße 5, 72076, Tübingen, Germany
| | - H Löwenheim
- Universitätsklinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Tübingen, Elfriede-Aulhorn-Straße 5, 72076, Tübingen, Germany
| | - D Zips
- Universitätsklinik für Radioonkologie, Universitätsklinikum Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany
| | - S Welz
- Universitätsklinik für Radioonkologie, Universitätsklinikum Tübingen, Hoppe-Seyler-Straße 3, 72076, Tübingen, Germany
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Sentell T, Seto T, Trinacty CM, Braun K, Taira D. Documenting Social and Behavioral Factors: Insights from Potentially Preventable Hospitalizations. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx187.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- T Sentell
- University of Hawaii at Manoa, Honolulu, United States
| | - T Seto
- University of Hawaii at Manoa, Honolulu, United States
| | - C Mah Trinacty
- Kaiser Permanente's Center for Health Research, Honolulu, United States
| | - K Braun
- University of Hawaii at Manoa, Honolulu, United States
| | - D Taira
- Daniel K. Inouye College of Pharmacy, Hilo, United States
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Mohapatra S, Choi A, Braun K, Murphy E, Chao S, Suh J, Stevens G, Peereboom D, Xuefei J, Ahluwalia MS. P09.05 Treatment outcomes in young patients with glioblastoma: the Cleveland Clinic experience. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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André A, Theurer C, Lauth J, Maiti S, Hodas M, Samadi Khoshkhoo M, Kinge S, Meixner AJ, Schreiber F, Siebbeles LDA, Braun K, Scheele M. Structure, transport and photoconductance of PbS quantum dot monolayers functionalized with a copper phthalocyanine derivative. Chem Commun (Camb) 2017; 53:1700-1703. [DOI: 10.1039/c6cc07878h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We simultaneously surface-functionalize PbS nanocrystals with Cu 4,4′,4′′,4′′′-tetraaminophthalocyanine and assemble this hybrid material into macroscopic monolayers.
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Riou B, Braun K, Bony-Trifunovic H, Boudailliez B. Étude des facteurs associés à la rémission partielle dans le diabète de type 1 chez l’enfant. Arch Pediatr 2016. [DOI: 10.1016/j.arcped.2016.09.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ray C, Ferris D, Braun K. Expanding the global health workforce through resident education in
Obstetrics & Gynecology: The Medical College of Georgia
experience. Ann Glob Health 2016. [DOI: 10.1016/j.aogh.2016.04.348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Bock J, Breuer S, Poeggel G, Braun K. Early life stress induces attention-deficit hyperactivity disorder (ADHD)-like behavioral and brain metabolic dysfunctions: functional imaging of methylphenidate treatment in a novel rodent model. Brain Struct Funct 2016; 222:765-780. [PMID: 27306789 PMCID: PMC5334429 DOI: 10.1007/s00429-016-1244-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/28/2016] [Indexed: 02/02/2023]
Abstract
In a novel animal model Octodon degus we tested the hypothesis that, in addition to genetic predisposition, early life stress (ELS) contributes to the etiology of attention-deficit hyperactivity disorder-like behavioral symptoms and the associated brain functional deficits. Since previous neurochemical observations revealed that early life stress impairs dopaminergic functions, we predicted that these symptoms can be normalized by treatment with methylphenidate. In line with our hypothesis, the behavioral analysis revealed that repeated ELS induced locomotor hyperactivity and reduced attention towards an emotionally relevant acoustic stimulus. Functional imaging using (14C)-2-fluoro-deoxyglucose-autoradiography revealed that the behavioral symptoms are paralleled by metabolic hypoactivity of prefrontal, mesolimbic and subcortical brain areas. Finally, the pharmacological intervention provided further evidence that the behavioral and metabolic dysfunctions are due to impaired dopaminergic neurotransmission. Elevating dopamine in ELS animals by methylphenidate normalized locomotor hyperactivity and attention-deficit and ameliorated brain metabolic hypoactivity in a dose-dependent manner.
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Affiliation(s)
- J Bock
- Institute of Biology, Department of Zoology/Developmental Neurobiology, Otto von Guericke University, Leipziger Str. 44, 39118, Magdeburg, Germany
- Center for Behavioral Brain Science, Otto von Guericke University Magdeburg, Magdeburg, Germany
| | - S Breuer
- Institute of Biology, Department of Zoology/Developmental Neurobiology, Otto von Guericke University, Leipziger Str. 44, 39118, Magdeburg, Germany
| | - G Poeggel
- Institute for Biology, Human Biology, University of Leipzig, 04103, Leipzig, Germany
| | - K Braun
- Institute of Biology, Department of Zoology/Developmental Neurobiology, Otto von Guericke University, Leipziger Str. 44, 39118, Magdeburg, Germany.
- Center for Behavioral Brain Science, Otto von Guericke University Magdeburg, Magdeburg, Germany.
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Van Montfrans J, Hartman E, Braun K, Hennekam F, Hak A, Nederkoorn P, Westendorp W, Bredius R, Kollen W, Scholvinck E, Legger G, Meyts I, Liston A, Lichtenbelt K, Giltay J, Van Haaften G, De Vries Simons G, Leavis H, Nierkens S, Sanders C, Van Gijn M. Phenotypic variability in patients with ADA2 deficiency due to identical homozygous R169Q mutations. Pediatr Rheumatol Online J 2015. [PMCID: PMC4597174 DOI: 10.1186/1546-0096-13-s1-o7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Lang K, Robens S, Braun K, Tam Y, Behrens T, Noldus J, Tannapfel A, Brüning T, Käfferlein H. 424 CXCL16 and betaIGH3/TGFBI in urine as biomarkers for high-grade bladder cancer diagnostics. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30258-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Friese N, Braun K, Müller M, Tropitzsch A. [Personalized medicine in otology. The role of genetic diagnostics in patients with hearing impairment]. HNO 2015; 63:428-33. [PMID: 26059788 DOI: 10.1007/s00106-015-0013-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND Classification of diseases on the molecular level is the basis for personalized medicine. Personalized medicine proposes to improve efficiency and quality of care, to reduce side effects and to increase long-term cost-effectiveness. OBJECTIVES This paper is concerned with the role of genetic diagnostics in patients with a cochlear implant. MATERIAL AND METHODS A selective literature search in PubMed was performed. RESULTS Genetic diagnosis allows ruling out syndromic hearing loss and thus prevents follow-up studies. It allows genetic counseling, prognosis and advice on family planning and targeted prevention. Due to its minimal invasiveness, it is suitable for evaluation of factors accounting for hearing loss in children. CONCLUSIONS Molecular medicine plays a major role in the treatment of sensorineural hearings loss with cochlear implants.
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Affiliation(s)
- N Friese
- Klinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Tübingen, Elfriede-Aulhorn-Straße 5, 72076, Tübingen, Deutschland
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Abstract
INTRODUCTION Hearing aids (HA) provide adequate support for many patients with hearing loss, but not all. Around one third of 10.000 patients provided with hearing aids in the Abbreviated Profile of Hearing Aid Benefit felt no actual benefit when using the hearing aid, although they demonstrated the necessary hearing improvement on speech audiometry. Epidemiological data show bad compliance, especially in older people. Only one in three hearing aid owners wears their device regularly. For this subpopulation of patients active middle ear implants (AMEIs) have been used since 1998. In the present review, the current indications for AMEIs are presented. MATERIAL AND METHODS A selective literature search in PubMed, as well as a guideline search at the Arbeitsgemeinschaft der Wissenschaftlichen Fachgesellschaften e. V. (German Association of Scientific Societies), was carried out. RESULTS The present review shows that when there is an adequate indication the hearing capacity of patients can be thoroughly rehabilitated and thus their quality of life improved with the help of AMEIs. Although most commercially available systems have a satisfactory risk profile, increased extrusion rates, malfunctioning and facial paresis have been reported in older implant series. The advantages of AMEIs include increased hearing gain, reduced feedback, increased hearing quality, increased speech discrimination in the presence of background noise, and an absence of occlusion. CONCLUSIONS The audiological indication for AMEIs in primary care is usually controversial, since the functional hearing gain and increase in speech discrimination may be small compared with modern conventional hearing aids. AMEIs thus play a main role in the secondary care of patients who do not have sufficient benefit or who have side effects after having a conventional hearing aid fitted.
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Affiliation(s)
- K Braun
- Kopf-Hals-Chirurgie, Plastische Operationen, Universitätsklinik für Hals-Nasen-Ohren-Heilkunde, Elfriede-Aulhorn-Str. 5, 72076, Tübingen, Deutschland,
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Unverzagt S, Peinemann F, Oemler M, Braun K, Klement A. Meta-regression analyses to explain statistical heterogeneity in a systematic review of strategies for guideline implementation in primary health care. PLoS One 2014; 9:e110619. [PMID: 25343450 PMCID: PMC4208765 DOI: 10.1371/journal.pone.0110619] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 09/15/2014] [Indexed: 11/18/2022] Open
Abstract
This study is an in-depth-analysis to explain statistical heterogeneity in a systematic review of implementation strategies to improve guideline adherence of primary care physicians in the treatment of patients with cardiovascular diseases. The systematic review included randomized controlled trials from a systematic search in MEDLINE, EMBASE, CENTRAL, conference proceedings and registers of ongoing studies. Implementation strategies were shown to be effective with substantial heterogeneity of treatment effects across all investigated strategies. Primary aim of this study was to explain different effects of eligible trials and to identify methodological and clinical effect modifiers. Random effects meta-regression models were used to simultaneously assess the influence of multimodal implementation strategies and effect modifiers on physician adherence. Effect modifiers included the staff responsible for implementation, level of prevention and definition pf the primary outcome, unit of randomization, duration of follow-up and risk of bias. Six clinical and methodological factors were investigated as potential effect modifiers of the efficacy of different implementation strategies on guideline adherence in primary care practices on the basis of information from 75 eligible trials. Five effect modifiers were able to explain a substantial amount of statistical heterogeneity. Physician adherence was improved by 62% (95% confidence interval (95% CI) 29 to 104%) or 29% (95% CI 5 to 60%) in trials where other non-medical professionals or nurses were included in the implementation process. Improvement of physician adherence was more successful in primary and secondary prevention of cardiovascular diseases by around 30% (30%; 95% CI -2 to 71% and 31%; 95% CI 9 to 57%, respectively) compared to tertiary prevention. This study aimed to identify effect modifiers of implementation strategies on physician adherence. Especially the cooperation of different health professionals in primary care practices might increase efficacy and guideline implementation seems to be more difficult in tertiary prevention of cardiovascular diseases.
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Affiliation(s)
- Susanne Unverzagt
- Institute of Medical Epidemiology, Biostatistics and Informatics, University Halle/Wittenberg, Halle (Saale), Germany
| | - Frank Peinemann
- Children's Hospital, University of Cologne, Cologne, Germany
| | - Matthias Oemler
- Section of General Practice, Institute of Medical Epidemiology, Biostatistics and Informatics, University Halle/Wittenberg, Halle (Saale), Germany
| | - Kristin Braun
- Section of General Practice, Institute of Medical Epidemiology, Biostatistics and Informatics, University Halle/Wittenberg, Halle (Saale), Germany
| | - Andreas Klement
- Section of General Practice, Institute of Medical Epidemiology, Biostatistics and Informatics, University Halle/Wittenberg, Halle (Saale), Germany
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Braun K, Champagne FA. Paternal influences on offspring development: behavioural and epigenetic pathways. J Neuroendocrinol 2014; 26:697-706. [PMID: 25039356 DOI: 10.1111/jne.12174] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 07/08/2014] [Accepted: 07/09/2014] [Indexed: 12/25/2022]
Abstract
Although mammalian parent-offspring interactions during early life are primarily through the mother, there is increasing evidence for the impact of fathers on offspring development. A critical issue concerns the pathways through which this paternal influence is achieved. In the present review, we highlight the literature suggesting several of these routes of paternal effects in mammals. First, similar to mothers, fathers can influence offspring development through the direct care of offspring, as has been observed in biparental species. Second, there is growing evidence that, even in the absence of contact with offspring, fathers can transmit environmentally-induced effects (i.e. behavioural, neurobiological and metabolic phenotypes induced by stress, nutrition and toxins) to offspring and it has been speculated that these effects are achieved through inherited epigenetic variation within the patriline. Third, fathers may also impact the quality of mother-infant interactions and thus achieve an indirect influence on offspring. Importantly, these pathways of paternal influence are not mutually exclusive but rather serve as an illustration of the complex mechanisms through which parental influence is achieved. These influences may serve to transmit traits across generations, thus leading to a transgenerational transmission of neurobiological and behavioural phenotypes.
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Affiliation(s)
- K Braun
- Department of Zoology/Developmental Neurobiology, Institute of Biology, Otto von Guericke University, Magdeburg, Germany
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Köhler C, Ahrens M, Behrens T, Eisenacher M, Braun K, Jöckel K, Erbel R, Tannapfel A, Brüning T, Käfferlein H. 437: Identification of a specific and sensitive urinary DNA hypermethylation signature for bladder cancer diagnosis. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50391-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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van ’t Klooster M, Ferrier C, van Klink N, Zelmann R, Braun K, Leijten F, Huiskamp G, Zijlmans M. O61: Can single pulse stimulation help to distinguish between pathological and physiological high frequency oscillations? Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50163-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Unverzagt S, Oemler M, Braun K, Klement A. Strategies for guideline implementation in primary care focusing on patients with cardiovascular disease: a systematic review. Fam Pract 2014; 31:247-66. [PMID: 24367069 DOI: 10.1093/fampra/cmt080] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Guidelines should reduce inappropriate practice and improve the efficiency of treatment. Not only methodological quality but also acceptance and successful implementation in daily practice are crucial for the benefit on patients. Focusing on cardiovascular diseases (CVD), it is still unclear which implementation strategy can improve physician adherence to the recommendations of guidelines in primary care. METHODS We conducted a systematic review on randomized controlled trials about guideline implementation strategies on CVD. Medline, Embase, CENTRAL, conference proceedings and registers of ongoing studies were searched. RESULTS Eighty-four trials met our predefined inclusion criteria, of them 54 trials compared unimodal strategies and 30 multimodal strategies to usual care. Concerning unimodal strategies, 15 trials investigated provider reminder systems, 3 audit and feedback, 15 provider education, 4 patient education, 5 promotion of self-management and 14 organizational change. The strongest benefit of a unimodal implementation strategy was found due to organizational change (odds ratio 1.96; 95% CI 1.4 to 2.75), followed by patient education, provider education and provider reminder systems. Trials on the efficacy of audit and feedback and patient self-management showed differing results or small advantages in terms of physician adherence. Multimodal interventions showed almost similar effect measures and ranking of strategies. CONCLUSION The use of implementation strategies for the distribution of guidelines on CVD can be convincingly effective on physician adherence, regardless whether based on a unimodal or multimodal design. Three distinct strategies should be well considered in such an attempt: organizational changes in the primary care team, patient education and provider education.
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Affiliation(s)
- Susanne Unverzagt
- Institute of Medical Epidemiology, Biostatistics and Informatics and
| | - Matthias Oemler
- Section of General Practice, Institute of Medical Epidemiology, Biostatistics and Informatics, University Halle/Wittenberg, Halle (Saale), Germany
| | - Kristin Braun
- Section of General Practice, Institute of Medical Epidemiology, Biostatistics and Informatics, University Halle/Wittenberg, Halle (Saale), Germany
| | - Andreas Klement
- Section of General Practice, Institute of Medical Epidemiology, Biostatistics and Informatics, University Halle/Wittenberg, Halle (Saale), Germany
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Devauchelle C, Braun K, Tourneux P, Chardon K, Ricard J, Buisson P, Canarelli J, Boudailliez B, Bach V, Haraux E. SFCP CO-31 - Facteurs prédictifs d’hypospadias en Picardie. Résultats préliminaires. Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)71669-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Routier L, Decker C, Le Moing A, Simonnot A, Bodin E, Braun K, Delignieres A, Berquin P. SFP P-065 – Découverte d’un hamartome hypothalamique devant des crises gélastiques et des spasmes infantiles. Arch Pediatr 2014. [DOI: 10.1016/s0929-693x(14)72035-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Braun K, Cruaux L, Fabris R, Morran J, Ho L, Drikas M. Comparison of coagulation and MIEX pre-treatment processes for bacterial and turbidity removal, utilizing real-time optical monitoring techniques. Environ Technol 2014; 35:1038-1045. [PMID: 24645488 DOI: 10.1080/09593330.2013.859737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Jar testing and flow cytometry were used in conjunction with photometric dispersion analysis (PDA) to assess conventional alum coagulation with and without magnetic ion exchange (MIEX) pre-treatment for turbidity and bacterial removal capacity. Treatment assessment included powdered activated carbon (PAC) and pre-chlorination of the MIEX-treated raw water. Floc particles were subjected to shear forces after settling and re-suspended to gauge bacterial release potential, floc breakage and re-aggregation. MIEX in conjunction with alum coagulation achieved improved coagulation as measured by PDA but did not increase bacterial log removal value (LRV) in comparison with conventional coagulation. Pre-chlorination and PAC addition were seen to improve bacterial removal and coagulation, respectively, but were less effective for bacterial LRVs when they were used in conjunction during coagulation.
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Escobar PA, Kemper RA, Tarca J, Nicolette J, Kenyon M, Glowienke S, Sawant SG, Christensen J, Johnson TE, McKnight C, Ward G, Galloway SM, Custer L, Gocke E, O'Donovan MR, Braun K, Snyder RD, Mahadevan B. Corrigendum to "Bacterial mutagenicity screening in the pharmaceutical industry" [Mutat. Res. 752(2) (2013) 99-118]. Mutat Res 2013; 753:155. [PMID: 33348475 DOI: 10.1016/j.mrrev.2013.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- P A Escobar
- Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT 06877-0368, USA.
| | - R A Kemper
- Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT 06877-0368, USA
| | - J Tarca
- Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT 06877-0368, USA
| | | | - M Kenyon
- Pfizer Global Research and Development, Groton, CT, USA
| | - S Glowienke
- Novartis Pharma AG, Werk Klybeck Klybeckstrasse 141, Basel CH-4057, Switzerland
| | - S G Sawant
- Amgen Inc., Thousand Oaks, CA 91320-1799, USA
| | - J Christensen
- Merck Research Laboratories West Point, PA 19486, USA
| | - T E Johnson
- Merck Research Laboratories West Point, PA 19486, USA
| | - C McKnight
- Merck Research Laboratories West Point, PA 19486, USA
| | - G Ward
- Merck Research Laboratories West Point, PA 19486, USA
| | - S M Galloway
- Merck Research Laboratories West Point, PA 19486, USA
| | - L Custer
- Bristol Myers-Squib, New Brunswick, NJ 08903, USA
| | - E Gocke
- Hoffman-La Roche Ltd., Basel, Switzerland
| | - M R O'Donovan
- AstraZeneca R&D, Alderley Park, Macclesfield, Cheshire SK10 4TG, UK
| | - K Braun
- Sanofi-Aventis Deutschland GmbH, D-65926 Frankfurt, Germany
| | - R D Snyder
- Merck Research Laboratories West Point, PA 19486, USA; RDS Consulting Services, Maineville, OH 45039, USA
| | - B Mahadevan
- Merck Research Laboratories West Point, PA 19486, USA
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Bock J, Poeggel G, Gruss M, Wingenfeld K, Braun K. Infant Cognitive Training Preshapes Learning-Relevant Prefrontal Circuits for Adult Learning: Learning-Induced Tagging of Dendritic Spines. Cereb Cortex 2013; 24:2920-30. [DOI: 10.1093/cercor/bht148] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Escobar P, Kemper R, Tarca J, Nicolette J, Kenyon M, Glowienke S, Sawant S, Christensen J, Johnson T, McKnight C, Ward G, Galloway S, Custer L, Gocke E, O’Donovan M, Braun K, Snyder R, Mahadevan B. Bacterial mutagenicity screening in the pharmaceutical industry. Mutation Research/Reviews in Mutation Research 2013; 752:99-118. [DOI: 10.1016/j.mrrev.2012.12.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Revised: 12/06/2012] [Accepted: 12/10/2012] [Indexed: 12/13/2022]
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Brock M, Eggert T, Löppenberg B, Braun K, Roghmann F, Palisaar R, Noldus J, von Bodman C. [Value of real-time elastography to guide the systematic prostate biopsy in men with normal digital rectal exam]. Aktuelle Urol 2013; 44:40-4. [PMID: 23325671 DOI: 10.1055/s-0032-1333257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The aim of this study was to evaluate whether real-time elastography-guided biopsy in comparison to grey-scale ultrasound improves prostate cancer detection in patients with an unremarkable digital rectal exam.A total of 231 patients suspicious for prostate cancer were prospectively randomised to transrectal real-time elastography- (126) or grey-scale ultrasound (105)-guided biopsy. The peripheral zone was divided into 6 sectors from base, mid-gland to apex. Lesions with reduced elasticity during real-time elastography and hypoechoic areas during grey-scale ultrasound were defined as suspicious for prostate cancer. Prostate biopsy was guided by real-time elastography (RTE) or grey-scale ultrasound (GSU) using a systematic 10-core approach. Suspicious lesions on RTE or GSU in the corresponding randomised group were targeted within each sector. Accuracy of cancer prediction and histopathological cancer detection rates were evaluated and compared between the 2 imaging modalitiesBaseline characteristics of patients undergoing real-time elastography and grey-scale ultrasound, including age, prostate-specific antigen and prostate volume were not significantly different statistically (p>0.05). Overall, prostate cancer was detected in 76 of 231 cases (32.9%). The cancer detection rate was significantly higher (p=0.007) in patients who underwent a biopsy using real-time elastography (40.5%) compared to the grey-scale-guided group of men (23.8%). Sensitivity and specificity to detect prostate cancer in 1 386 prostate sectors was 53.5% and 70.5% for real-time elastography vs. 11.7% and 93.7% for grey-scale ultrasound, respectively.Compared to conventional grey-scale ultrasound, accuracy to detect prostate cancer using a systematic 10-core biopsy approach was significantly improved under the guidance of real-time elastography.
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Affiliation(s)
- M. Brock
- Urologische Klinik, Marienhospital Herne, Ruhr-Universität Bochum
| | - T. Eggert
- Urologische Klinik, Marienhospital Herne, Ruhr-Universität Bochum
| | - B. Löppenberg
- Urologische Klinik, Marienhospital Herne, Ruhr-Universität Bochum
| | - K. Braun
- Urologische Klinik, Marienhospital Herne, Ruhr-Universität Bochum
| | - F. Roghmann
- Urologische Klinik, Marienhospital Herne, Ruhr-Universität Bochum
| | - R. Palisaar
- Urologische Klinik, Marienhospital Herne, Ruhr-Universität Bochum
| | - J. Noldus
- Urologische Klinik, Marienhospital Herne, Ruhr-Universität Bochum
| | - C. von Bodman
- Urologische Klinik, Marienhospital Herne, Ruhr-Universität Bochum
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Ricon T, Toth E, Leshem M, Braun K, Richter-Levin G. Unpredictable chronic stress in juvenile or adult rats has opposite effects, respectively, promoting and impairing resilience. Stress 2012; 15:11-20. [PMID: 21682654 DOI: 10.3109/10253890.2011.572207] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
We evaluated the effects of early maternal deprivation (MD; age 7-14 days) alone or in combination with unpredictable chronic stress (UCS; MDUN; 28-84 days) on anxiety and learning in 90 days old adult rats. We hypothesized that exposure to both stressors (MDUN) would be more detrimental than exposure to one or neither. Unexpectedly, adult rats from the MDUN group did not differ from control animals, whereas adult MD animals exhibited impaired avoidance learning. We next investigated the effect of juvenile-onset (30-90 days) versus adult-onset (60-90 days) stress on avoidance learning in adulthood (90 days). We found that adult-onset chronic stress impaired avoidance learning and memory whereas juvenile-onset stress did not. Thus, the results again indicate that juvenile exposure to UCS induces resilience rather than impairment.
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Affiliation(s)
- T Ricon
- Department of Psychology, he Brain and Behavior Research Center, University of Haifa, Mount Carmel Haifa, Israel.
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Seidel K, Poeggel G, Holetschka R, Helmeke C, Braun K. Paternal deprivation affects the development of corticotrophin-releasing factor-expressing neurones in prefrontal cortex, amygdala and hippocampus of the biparental Octodon degus. J Neuroendocrinol 2011; 23:1166-76. [PMID: 21848809 DOI: 10.1111/j.1365-2826.2011.02208.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Although the critical role of maternal care on the development of brain and behaviour of the offspring has been extensively studied, knowledge about the importance of paternal care is comparatively scarce. In biparental species, paternal care significantly contributes to a stimulating socio-emotional family environment, which most likely also includes protection from stressful events. In the biparental caviomorph rodent Octodon degus, we analysed the impact of paternal care on the development of neurones in prefrontal-limbic brain regions, which express corticotrophin-releasing factor (CRF). CRF is a polypeptidergic hormone that is expressed and released by a neuronal subpopulation in the brain, and which not only is essential for regulating stress and emotionality, but also is critically involved in cognitive functions. At weaning age [postnatal day (P)21], paternal deprivation resulted in an elevated density of CRF-containing neurones in the orbitofrontal cortex and in the basolateral amygdala of male degus, whereas a reduced density of CRF-expressing neurones was measured in the dentate gyrus and stratum pyramidale of the hippocampal CA1 region at this age. With the exception of the CA1 region, the deprivation-induced changes were no longer evident in adulthood (P90), which suggests a transient change that, in later life, might be normalised by other socio-emotional experience. The central amygdala, characterised by dense clusters of CRF-immunopositive neuropil, and the precentral medial, anterior cingulate, infralimbic and prelimbic cortices, were not affected by paternal deprivation. Taken together, this is the first evidence that paternal care interferes with the developmental expression pattern of CRF-expressing interneurones in an age- and region-specific manner.
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Affiliation(s)
- K Seidel
- Institute of Biology, Department of Zoology/Developmental Neurobiology, Otto-von-Guericke University, Magdeburg, Germany
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Goyal S, Braun K, Haffty B, Kearney T, Azu M, Yue N. Optimal PTV Margin in Patients with Fiducial Markers Treated with Accelerated Partial Breast Irradiation (APBI) using 3D-CRT: Final Results of CINJ 040801. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Yue N, Goyal S, Braun K, Khan A, Haffty B. TU-G-BRC-06: Patterns of Intra-Fractional Motion and Uncertainties of Treatment Setup Reference Systems in Accelerated Partial Breast Irradiation of Right- and Left-Sided Breast Cancer. Med Phys 2011. [DOI: 10.1118/1.3613235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Buisson P, Haraux E, Hamzy M, Ricard J, Canarelli JP, Boudailliez B, Braun K. [Cystinuria in children: A report of 4 cases]. Arch Pediatr 2011; 18:553-7. [PMID: 21458974 DOI: 10.1016/j.arcped.2011.02.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Revised: 03/19/2010] [Accepted: 02/16/2011] [Indexed: 10/28/2022]
Abstract
Cystinuria is an inherited autosomal-recessive disorder of renal reabsorption of the dibasic amino acids. It is the cause of about 6% of all kidney stones observed in children. Cystine is relatively insoluble at the physiological pH of urine. Cystine stones are characteristic and frequent recurrences are observed. We report on 4 cases and describe the initial presentation (obstructive renal failure, urinary sepsis, familial screening) and the medical and surgical management. Medical management is mainly based on hyperhydration and urine alkalinization. Long-term therapy with sulfhydryl agents to prevent formation of renal stones seems to be effective but adverse side effects are frequent, requiring the withdrawal of treatment. Urological management has evolved from surgical stone removal to minimally invasive procedures (extracorporeal shock wave lithotripsy, ureteroscopy).
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Affiliation(s)
- P Buisson
- Service de chirurgie pédiatrique, hôpital Nord d'Amiens, place Victor-Pauchet, 80054 Amiens cedex 1, France
| | - E Haraux
- Service de chirurgie pédiatrique, hôpital Nord d'Amiens, place Victor-Pauchet, 80054 Amiens cedex 1, France
| | - M Hamzy
- Service de chirurgie pédiatrique, hôpital Nord d'Amiens, place Victor-Pauchet, 80054 Amiens cedex 1, France
| | - J Ricard
- Service de chirurgie pédiatrique, hôpital Nord d'Amiens, place Victor-Pauchet, 80054 Amiens cedex 1, France
| | - J-P Canarelli
- Service de chirurgie pédiatrique, hôpital Nord d'Amiens, place Victor-Pauchet, 80054 Amiens cedex 1, France; Service de pédiatrie, hôpital Nord d'Amiens, place Victor-Pauchet, 80054 Amiens cedex 1, France
| | - B Boudailliez
- Service de pédiatrie, hôpital Nord d'Amiens, place Victor-Pauchet, 80054 Amiens cedex 1, France
| | - K Braun
- Service de pédiatrie, hôpital Nord d'Amiens, place Victor-Pauchet, 80054 Amiens cedex 1, France
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Goissen C, Fontaine C, Braun K, Bony H, Al-Hosri J, Ramadan-Ghostine G, Léké A, Boudailliez B, Tourneux P. Étude prospective à une semaine de vie de la fonction thyroïdienne chez 97 prématurés consécutifs de terme inférieur à 32 semaines d’aménorrhée. Arch Pediatr 2011; 18:253-60. [DOI: 10.1016/j.arcped.2010.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2010] [Revised: 12/07/2010] [Accepted: 12/17/2010] [Indexed: 10/18/2022]
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Clara M, Gans O, Windhofer G, Krenn U, Hartl W, Braun K, Scharf S, Scheffknecht C. Occurrence of polycyclic musks in wastewater and receiving water bodies and fate during wastewater treatment. Chemosphere 2011; 82:1116-23. [PMID: 21144551 DOI: 10.1016/j.chemosphere.2010.11.041] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 11/15/2010] [Accepted: 11/15/2010] [Indexed: 05/12/2023]
Abstract
The occurrence of cashmerane (DPMI), celestolide, phantolide, traesolide (ATII), galaxolide (HHCB) and tonalide (AHTN) in sewage and surface waters and their fate during wastewater treatment and anaerobic sludge digestion is investigated. AHTN and HHCB are the most important representatives and influent concentrations of 0.41-1.8 and 0.9-13 μgL(-1) are observed. DPMI is detected in influent and effluent samples but in notably lower concentrations than AHTN and HHCB. Major sources of polycyclic musks are households, whereas industrial emitters seem to be of minor importance. This conclusion is supported by the analysis of selected industrial wastewaters (metal, textile and paper industry). Specific emissions of 0.36 ± 0.19 and 1.6 ± 1.0 mg cap(-1)d(-1) for AHTN and HHCB are calculated. Overall removal efficiencies between approx 50% and more than 95% are observed during biological wastewater treatment and removal with the excess sludge is the major removal pathway. Log K(D) values of 3.73-4.3 for AHTN, 3.87-4.34 for HHCB and 2.42-3.22 for DPMI are observed in secondary sludge. During sludge digestion no or only slight removal occurred. Mean polycyclic musk concentrations in digested sludge amounted to 1.9 ± 0.9 (AHTN), 14.2 ± 5.8 (HHCB), 0.8 ± 0.4 (ATII) and 0.2 ± 0.09 (DPMI) mgkg(-1) dry matter. In the receiving water systems a comparable distribution as during wastewater treatment is observed. AHTN, HHCB and DPMI are detected in surface waters (ND (not detected) - <0.04, ND - 0.32 and ND - 0.02 μg L(-1)) as well as AHTN and HHCB in sediments (ND - 20, ND - 120 μg kg(-1)). For HHCB an apparent K(OC) value of 4.1-4.4 is calculated for sediments. Major source for polycyclic musks in surface waters are discharges from wastewater treatment plants. For HHCB and DPMI 100% of the load observed in the sampled surface waters derive from discharges of treated wastewater.
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Affiliation(s)
- M Clara
- Environment Agency Austria, Spittelauer Lände 5, 1090 Vienna, Austria.
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Delvan J, Becker A, Braun K. Fatores de Risco no Desenvolvimento de Crianças e a Resiliência: Um Estudo Teórico. Revista de Psicologia da IMED 2010. [DOI: 10.18256/2175-5027/psico-imed.v2n1p349-357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Morin G, Djeddi D, Braun K, Barois-Guilliot J, Tellai L, Lajarrige C, Demeer B, Bony H, Boudailliez B, Zlotogorski A, Mathieu M. CL028 - Syndrome H : une génodermatose méconnue caractérisée par des lésions hyperpigmentées et une atteinte multisystémique. Arch Pediatr 2010. [DOI: 10.1016/s0929-693x(10)70244-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Fleischer M, Zhang D, Braun K, Jäger S, Ehlich R, Häffner M, Stanciu C, Hörber JKH, Meixner AJ, Kern DP. Tailoring gold nanostructures for near-field optical applications. Nanotechnology 2010; 21:065301. [PMID: 20057031 DOI: 10.1088/0957-4484/21/6/065301] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A method of combined thin-film deposition, electron beam lithography, and ion milling is presented for the fabrication of gold and silver nanostructures. The flexibility of lithographical processes for the variation of geometric parameters is combined with three-dimensional control over the surface evolution. Depending on the etching angle, different shapes ranging from cones over rods to cups can be achieved. These size- and shape-tunable structures present a toolbox for nano-optical investigations. As an example, optical properties of systematically varying structures are examined in a parabolic mirror confocal microscope.
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Affiliation(s)
- M Fleischer
- Institute of Applied Physics, Eberhard Karls Universität Tübingen, Tübingen, Germany.
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Zhang D, Heinemeyer U, Stanciu C, Sackrow M, Braun K, Hennemann LE, Wang X, Scholz R, Schreiber F, Meixner AJ. Nanoscale spectroscopic imaging of organic semiconductor films by plasmon-polariton coupling. Phys Rev Lett 2010; 104:056601. [PMID: 20366779 DOI: 10.1103/physrevlett.104.056601] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Indexed: 05/23/2023]
Abstract
Tip-enhanced near-field optical images and correlated topographic images of an organic semiconductor film (diindenoperylene, DIP) on Si have been recorded with high optical contrast and high spatial resolution (17 nm) using a parabolic mirror with a high numerical aperture for tip illumination and signal collection. The DIP molecular domain boundaries being one to four molecular layers (1.5-6 nm) high are resolved topographically by a shear-force scanning tip and optically by simultaneously recording the 6x10{5} times enhanced photoluminescence (PL). The excitation is 4x10{4} times enhanced and the intrinsically weak PL-yield of the DIP-film is 15-fold enhanced by the tip. The Raman spectra indicate an upright orientation of the DIP molecules. The enhanced PL contrast results from the local film morphology via stronger coupling between the tip plasmon and the exciton-polariton in the DIP film.
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Affiliation(s)
- D Zhang
- Institute of Physical and Theoretical Chemistry, University of Tübingen, D-72076 Tübingen, Germany.
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Clara M, Windhofer G, Hartl W, Braun K, Simon M, Gans O, Scheffknecht C, Chovanec A. Occurrence of phthalates in surface runoff, untreated and treated wastewater and fate during wastewater treatment. Chemosphere 2010; 78:1078-1084. [PMID: 20096917 DOI: 10.1016/j.chemosphere.2009.12.052] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2009] [Revised: 12/21/2009] [Accepted: 12/22/2009] [Indexed: 05/27/2023]
Abstract
Dimethyl phthalate, diethyl phthalate, dibuthyl phthalate, butylbenzyl phthalate, bis(2-ethylbenzyl) phthalate (DEHP) and dioctyl phthalate were analysed in raw and treated wastewater as well as in surface runoff samples from traffic roads. All six investigated phthalates have been detected in all raw sewage samples, in nearly all wastewater treatment plant (WWTP) effluent samples and in all road runoff samples, with DEHP being the most abundant compound. DEHP inflow concentrations ranged 3.4-34 microg L(-1) and effluent concentrations 0.083-6.6 microg L(-1). In two WWTPs the fate of the phthalates was assessed by performing mass balances. Overall removal efficiencies of approx 95% were calculated. Removal is attributed to biotransformation and adsorption and the relevance of the removal via adsorption to sludge increased with increasing molecular weight and increasing lipophilic character of the compound. Except DEHP phthalate concentrations were higher in treated effluent samples than in road runoff. The environmental quality standard (EQS) for DEHP in surface waters is exceeded only in a few effluent samples, whereas nearly all road runoff samples were higher than the EQS. An assessment based on pure concentrations is not feasible and a mass balance based approach is required. Nevertheless the observations highlight the relevance of stormwater emissions and direct emissions from separated sewer systems to surface waters in relation to emissions from WWTPs and the necessity to consider all potential influences in the assessment of the status of surface water bodies with reference to xenobiotics.
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Affiliation(s)
- M Clara
- Umweltbundesamt GmbH, Spittelauer Lände 5, Vienna, Austria.
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Cipriotti PA, Rauber RB, Collantes MB, Braun K, Escartín C. Hieracium pilosella invasion in the Tierra del Fuego steppe, Southern Patagonia. Biol Invasions 2009. [DOI: 10.1007/s10530-009-9661-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Braun K, Mitin YV, Salchert K, Schmidt T, Kuhl P. Synthesis and Use of New Semispecific Substrates for Trypsin-Catalyzed Peptide Bond Formation. BIOCATAL BIOTRANSFOR 2009. [DOI: 10.3109/10242420009015261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Braun K, Antemano R, Helmeke C, Büchner M, Poeggel G. Juvenile separation stress induces rapid region- and layer-specific changes in S100ß- and glial fibrillary acidic protein–immunoreactivity in astrocytes of the rodent medial prefrontal cortex. Neuroscience 2009; 160:629-38. [DOI: 10.1016/j.neuroscience.2009.02.074] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2008] [Revised: 02/23/2009] [Accepted: 02/24/2009] [Indexed: 10/21/2022]
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