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Gottschalk I, Walter A, Menzel T, Weber EC, Wendt S, Sreeram N, Gembruch U, Berg C, Abel JS. D-Transposition of the great arteries with restrictive foramen ovale in the fetus: the dilemma of predicting the need for postnatal urgent balloon atrial septostomy. Arch Gynecol Obstet 2024; 309:1353-1367. [PMID: 36971845 PMCID: PMC10894161 DOI: 10.1007/s00404-023-06997-8] [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] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/01/2023] [Indexed: 03/29/2023]
Abstract
OBJECTIVE Restrictive foramen ovale (FO) in dextro-transposition of the great arteries (d-TGA) with intact ventricular septum may lead to severe life-threatening hypoxia within the first hours of life, making urgent balloon atrial septostomy (BAS) inevitable. Reliable prenatal prediction of restrictive FO is crucial in these cases. However, current prenatal echocardiographic markers show low predictive value, and prenatal prediction often fails with fatal consequences for a subset of newborns. In this study, we described our experience and aimed to identify reliable predictive markers for BAS. METHODS We included 45 fetuses with isolated d-TGA that were diagnosed and delivered between 2010 and 2022 in two large German tertiary referral centers. Inclusion criteria were the availability of former prenatal ultrasound reports, of stored echocardiographic videos and still images, which had to be obtained within the last 14 days prior to delivery and that were of sufficient quality for retrospective re-analysis. Cardiac parameters were retrospectively assessed and their predictive value was evaluated. RESULTS Among the 45 included fetuses with d-TGA, 22 neonates had restrictive FO postnatally and required urgent BAS within the first 24 h of life. In contrast, 23 neonates had normal FO anatomy, but 4 of them unexpectedly showed inadequate interatrial mixing despite their normal FO anatomy, rapidly developed hypoxia and also required urgent BAS ('bad mixer'). Overall, 26 (58%) neonates required urgent BAS, whereas 19 (42%) achieved good O2 saturation and did not undergo urgent BAS. In the former prenatal ultrasound reports, restrictive FO with subsequent urgent BAS was correctly predicted in 11 of 22 cases (50% sensitivity), whereas a normal FO anatomy was correctly predicted in 19 of 23 cases (83% specificity). After current re-analysis of the stored videos and images, we identified three highly significant markers for restrictive FO: a FO diameter < 7 mm (p < 0.01), a fixed (p = 0.035) and a hypermobile (p = 0.014) FO flap. The maximum systolic flow velocities in the pulmonary veins were also significantly increased in restrictive FO (p = 0.021), but no cut-off value to reliably predict restrictive FO could be identified. If the above markers are applied, all 22 cases with restrictive FO and all 23 cases with normal FO anatomy could correctly be predicted (100% positive predictive value). Correct prediction of urgent BAS also succeeded in all 22 cases with restrictive FO (100% PPV), but naturally failed in 4 of the 23 cases with correctly predicted normal FO ('bad mixer') (82.6% negative predictive value). CONCLUSION Precise assessment of FO size and FO flap motility allows a reliable prenatal prediction of both restrictive and normal FO anatomy postnatally. Prediction of likelihood of urgent BAS also succeeds reliably in all fetuses with restrictive FO, but identification of the small subset of fetuses that also requires urgent BAS despite their normal FO anatomy fails, because the ability of sufficient postnatal interatrial mixing cannot be predicted prenatally. Therefore, all fetuses with prenatally diagnosed d-TGA should always be delivered in a tertiary center with cardiac catheter stand-by, allowing BAS within the first 24 h after birth, regardless of their predicted FO anatomy.
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Affiliation(s)
- I Gottschalk
- Division of Prenatal Medicine, Gynecological Ultrasound and Fetal Surgery, Department of Obstetrics and Gynecology, University Hospital Cologne and Faculty of Medicine, University of Cologne, Cologne, Germany.
| | - A Walter
- Department of Obstetrics and Prenatal Medicine, University of Bonn, Bonn, Germany
| | - T Menzel
- Division of Prenatal Medicine, Gynecological Ultrasound and Fetal Surgery, Department of Obstetrics and Gynecology, University Hospital Cologne and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - E C Weber
- Division of Prenatal Medicine, Gynecological Ultrasound and Fetal Surgery, Department of Obstetrics and Gynecology, University Hospital Cologne and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - S Wendt
- Heartcenter, Department of Cardiac Surgery, Cardiothoracic Intensive Care and Thoracic Surgery, University Hospital Cologne, University of Cologne, Cologne, Germany
| | - N Sreeram
- Department of Pediatric Cardiology, University Hospital Cologne and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - U Gembruch
- Department of Obstetrics and Prenatal Medicine, University of Bonn, Bonn, Germany
| | - C Berg
- Division of Prenatal Medicine, Gynecological Ultrasound and Fetal Surgery, Department of Obstetrics and Gynecology, University Hospital Cologne and Faculty of Medicine, University of Cologne, Cologne, Germany
| | - J S Abel
- Division of Prenatal Medicine, Gynecological Ultrasound and Fetal Surgery, Department of Obstetrics and Gynecology, University Hospital Cologne and Faculty of Medicine, University of Cologne, Cologne, Germany
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Moody N, Walter A, Daudu D, Wahlgren CM, Jongkind V. International Perspective on Extremity Vascular Trauma in Children: A Scoping Review. Eur J Vasc Endovasc Surg 2024:S1078-5884(24)00200-4. [PMID: 38428670 DOI: 10.1016/j.ejvs.2024.02.040] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 02/17/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024]
Abstract
OBJECTIVE Extremity vascular trauma in children can result in significant morbidity and mortality. Most published studies have focused on supracondylar humeral fracture related injuries, with little focus on other injuries. This scoping review describes the current state of knowledge on paediatric vascular injuries in the upper and lower limbs, excluding injuries related to supracondylar humeral fractures. METHODS MEDLINE, PubMed, Web of Science, and Cochrane databases were searched for relevant studies evaluating the epidemiology, diagnosis, management, and outcomes of upper and lower limb vascular trauma in those aged under 18 years. Studies related to supracondylar humeral fractures were excluded. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) extension for Scoping Reviews was used. RESULTS A total of 39 studies was included, all of which were retrospective, and 74% of which were based in North America or Europe. Extremity vascular trauma was reported to cause 0.6 - 4.4% of all paediatric trauma admissions, with penetrating mechanisms and upper limb injuries being the most common. Operative intervention was reported in 80 - 100% of children in the included studies. Primary repair was the most commonly reported operative intervention, followed by interposition graft and bypass graft. Synthetic graft use was less commonly reported (incidence range 0.5 - 33%). Lower limb fasciotomies and amputations were not commonly reported (incidence range 0 - 23% and 0 - 13%, respectively). The mortality rate appeared low, with 23 studies reporting no deaths (incidence range 0 - 4%). Complications were reported inconsistently, with no uniform outcome or follow up measures used. CONCLUSION The incidence of extremity vascular trauma appears low in children, with penetrating mechanisms and upper extremity injuries appearing to dominate. Most studies are from high income countries, with probable selection bias towards those treated by operative intervention. Prospective studies are required focusing on patterns of injury, rates of operative and endovascular intervention, and long term outcomes.
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Affiliation(s)
- N Moody
- Queen Elizabeth University Hospital, Glasgow, UK.
| | - A Walter
- Queen Elizabeth University Hospital, Glasgow, UK
| | - Davina Daudu
- Department of Surgery, University of Western Australia, Perth, Australia
| | - Carl-Magnus Wahlgren
- Department of Vascular Surgery, Karolinska University Hospital/Karolinska Institute, Stockholm, Sweden
| | - Vincent Jongkind
- Department of Surgery, Amsterdam UMC location Vrije Universiteit, Amsterdam, the Netherlands; Microcirculation - Amsterdam Cardiovascular Sciences, Amsterdam, the Netherlands
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Bradley NA, Walter A, Roxburgh CSD, McMillan DC, Guthrie GJK. The relationship between clinical frailty score, CT-derived body composition, systemic inflammation, and survival in patients with chronic limb threatening ischaemia. Ann Vasc Surg 2023:S0890-5096(23)00339-4. [PMID: 37356659 DOI: 10.1016/j.avsg.2023.06.012] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/23/2023] [Accepted: 06/06/2023] [Indexed: 06/27/2023]
Abstract
INTRODUCTIO Frailty is a chronic condition with complex aetiology and impaired functional performance, which has been associated altered body composition and chronic inflammation. Chronic Limb Threatening Ischaemia (CLTI) carries significant morbidity and mortality and is associated with poor quality of life. The present study aims to examine these relationships and their prognostic value in patients with CLTI. METHODS Consecutive patients presenting as unscheduled admissions to a single tertiary centre with CLTI were included over a 12-month period. Frailty was diagnosed using the clinical frailty scale (CFS). Body composition was assessed using CT at the L3 vertebral level (CT-BC) to generate visceral and subcutaneous fat indices (VFI, SFI), skeletal muscle index (SMI), and skeletal muscle density (SMD). SMI and SMD were combined to form the CT-sarcopenia score (CT-SS). Systemic inflammation was assessed by the modified Glasgow Prognostic Score (mGPS). The primary outcome was overall mortality. RESULTS There were 190 patients included with a median (IQR) follow-up of 22 (6) months (range 15-32 months), and 79 deaths during the follow-up period. 100 patients (53%) had a CFS > 4. CFS > 4 (HR 2.14, 95% CI 1.25 - 3.66, p <0.01), CT-SS (HR 1.47, 95% CI 1.03 - 2.09, p <0.05), and mGPS (HR 1.54, 95% CI 1.11 - 2.13, p <0.01) were independently associated with increased mortality. CT-SS (OR 1.88, 95% CI 1.09 - 3.24, p < 0.01) was independently associated with CFS > 4. Patients with CT-SS 0 & CFS ≤4 had 90% (SE 5%) 1-year survival, compared with 35% (SE 9%) in patients with CT-SS 2 & CFS >4 (p <0.001). Patients with mGPS 0 & CFS ≤ 4 had 94% (SE 4%) 1-year survival compared with 44% (SE 6%) in the mGPS 2 & CFS > 4 subgroup (p <0.001). CONCLUSIONS Frailty assessed by CFS was associated with CT-BC. CFS, CT-SS and mGPS were associated with poorer survival in patients presenting as unscheduled admissions with CLTI. CT-SS and mGPS may contribute to part of frailty and prognostic assessment in this patient cohort.
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Affiliation(s)
- N A Bradley
- Clinical Research Fellow, University of Glasgow
| | | | | | - D C McMillan
- Professor of Surgical Science, University of Glasgow
| | - G J K Guthrie
- Consultant Vascular Surgeon, NHS Tayside, Honorary Clinical Senior Lecturer, University of Glasgow
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Pernea P, Annabi E, Walter A, Blum L, Bennacer Y, Begon E. Cutaneous exanthema revealing Multisystem-Inflammatory Syndrome in adults (MIS-A) in the course of SARS-CoV-2 infection. Ann Dermatol Venereol 2023; 150:164-166. [PMID: 36870930 PMCID: PMC9889252 DOI: 10.1016/j.annder.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 12/07/2022] [Accepted: 01/19/2023] [Indexed: 02/04/2023]
Affiliation(s)
- P Pernea
- Department of Dermatology, Hôpital René Dubos, 6 Avenue de l'Ile de France, 95300 Pontoise, France
| | - E Annabi
- Department of Dermatology, Hôpital René Dubos, 6 Avenue de l'Ile de France, 95300 Pontoise, France
| | - A Walter
- Department of Dermatology, Hôpital René Dubos, 6 Avenue de l'Ile de France, 95300 Pontoise, France
| | - L Blum
- Department of Dermatology, Hôpital René Dubos, 6 Avenue de l'Ile de France, 95300 Pontoise, France
| | - Y Bennacer
- Department of Cardiology, Hôpital René Dubos, 6 Avenue de l'Ile de France, 95300 Pontoise, France
| | - E Begon
- Department of Dermatology, Hôpital René Dubos, 6 Avenue de l'Ile de France, 95300 Pontoise, France.
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Morin L, Couineau F, Begon E, Walter A, Faucon B, Al Tabaa K. Randomized trial of the effect of video training on residents' surgical skills in facial skin reconstructive surgery: A SQUIRE study. Eur Ann Otorhinolaryngol Head Neck Dis 2022; 139:321-325. [PMID: 35717531 DOI: 10.1016/j.anorl.2022.06.002] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the impact of facial skin reconstruction training videos for head and neck and maxillofacial surgery residents. MATERIAL AND METHODS This randomized trial, conducted in France, involved residents in head and neck and maxillofacial surgery. A website was created containing facial skin reconstruction training videos. Selected residents performed facial skin flap dissections in the Paris School of Surgery. They were randomized into two groups, one receiving a standard course before the dissection, and the other a standard course plus a video of the flap ("no-video" and "video" groups). Each resident performed 4 facial flaps and was graded (blindly) during dissection. The main study endpoint was intergroup difference in grading score (out of 15). The article was written up following the SQUIRE-EDU (Standards for QUality Improvement Reporting Excellence in EDUcation) criteria. RESULTS Eighteen residents were included. For the main endpoint, scores were significantly higher in the "video" than the "no-video" group (6 [IQR, 4: 9] vs. 10 [9: 12]; P<0.001). In addition, as secondary endpoint, "no-video" group residents requested more assistance (3 [2: 4] vs. 1 [1: 2] P<0.001). Power was lacking for any subgroup analysis according to year of residency or to the 4 flaps. CONCLUSION Videos improved surgical residents' performance during dissections. However, these results would be difficult to transpose to real clinical conditions. They need validating in a larger study evaluating performance in real-life procedures.
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Affiliation(s)
- L Morin
- Service d'ORL, Hôpital René Dubos, Pontoise, France.
| | - F Couineau
- Service d'ORL, Hôpital Foch, Suresnes, France
| | - E Begon
- Service de Dermatologie, Hôpital René Dubos, Pontoise, France
| | - A Walter
- Service de Dermatologie, Hôpital René Dubos, Pontoise, France
| | - B Faucon
- Service d'ORL, Hôpital René Dubos, Pontoise, France
| | - K Al Tabaa
- Service d'ORL, Hôpital René Dubos, Pontoise, France
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Bassetto M, Ajoy D, Poulhes F, Obringer C, Walter A, Messadeq N, Sadeghi A, Puranen J, Ruponen M, Kettunen M, Toropainen E, Urtti A, Dollfus H, Zelphati O, Marion V. Magnetically Assisted Drug Delivery of Topical Eye Drops Maintains Retinal Function In Vivo in Mice. Pharmaceutics 2021; 13:pharmaceutics13101650. [PMID: 34683941 PMCID: PMC8540400 DOI: 10.3390/pharmaceutics13101650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 08/30/2021] [Revised: 09/24/2021] [Accepted: 09/29/2021] [Indexed: 01/21/2023] Open
Abstract
Barded-Biedl syndrome (BBS) is a rare genetic disorder with an unmet medical need for retinal degeneration. Small-molecule drugs were previously identified to slow down the apoptosis of photoreceptors in BBS mouse models. Clinical translation was not practical due to the necessity of repetitive invasive intravitreal injections for pediatric populations. Non-invasive methods of retinal drug targeting are a prerequisite for acceptable adaptation to the targeted pediatric patient population. Here, we present the development and functional testing of a non-invasive, topical, magnetically assisted delivery system, harnessing the ability of magnetic nanoparticles (MNPs) to cargo two drugs (guanabenz and valproic acid) with anti-unfolded protein response (UPR) properties towards the retina. Using magnetic resonance imaging (MRI), we showed the MNPs' presence in the retina of Bbs wild-type mice, and their photoreceptor localization was validated using transmission electron microscopy (TEM). Subsequent electroretinogram recordings (ERGs) demonstrated that we achieved beneficial biological effects with the magnetically assisted treatment translating the maintained light detection in Bbs-/- mice (KO). To our knowledge, this is the first demonstration of efficient magnetic drug targeting in the photoreceptors in vivo after topical administration. This non-invasive, needle-free technology expands the application of SMDs for the treatment of a vast spectrum of retinal degenerations and other ocular diseases.
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Affiliation(s)
- Marco Bassetto
- OZ Biosciences, Parc Scientifique de Luminy, Case 922, Zone Entreprise, CEDEX 9, 13288 Marseille, France; (M.B.); (F.P.); (A.W.)
| | - Daniel Ajoy
- INSERM, Ciliopathies Modeling and Associated Therapies Group, Laboratoire de Génétique Médicale, UMRS_U1112, Fédération de Médicine Translationelle de Strasbourg, Université de Strasbourg, 67085 Strasbourg, France; (D.A.); (C.O.); (H.D.)
| | - Florent Poulhes
- OZ Biosciences, Parc Scientifique de Luminy, Case 922, Zone Entreprise, CEDEX 9, 13288 Marseille, France; (M.B.); (F.P.); (A.W.)
| | - Cathy Obringer
- INSERM, Ciliopathies Modeling and Associated Therapies Group, Laboratoire de Génétique Médicale, UMRS_U1112, Fédération de Médicine Translationelle de Strasbourg, Université de Strasbourg, 67085 Strasbourg, France; (D.A.); (C.O.); (H.D.)
| | - Aurelie Walter
- OZ Biosciences, Parc Scientifique de Luminy, Case 922, Zone Entreprise, CEDEX 9, 13288 Marseille, France; (M.B.); (F.P.); (A.W.)
| | - Nadia Messadeq
- INSERM, Institute of Genetics and Molecular and Cellular Biology (IGBMC), 67640 Illkrich-Graffenstaden, France;
| | - Amir Sadeghi
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, 70211 Kuopio, Finland; (A.S.); (J.P.); (M.R.); (E.T.); (A.U.)
| | - Jooseppi Puranen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, 70211 Kuopio, Finland; (A.S.); (J.P.); (M.R.); (E.T.); (A.U.)
| | - Marika Ruponen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, 70211 Kuopio, Finland; (A.S.); (J.P.); (M.R.); (E.T.); (A.U.)
| | - Mikko Kettunen
- Kuopio Biomedical Imaging Unit, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Neulaniementie 2, 70150 Kuopio, Finland;
| | - Elisa Toropainen
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, 70211 Kuopio, Finland; (A.S.); (J.P.); (M.R.); (E.T.); (A.U.)
| | - Arto Urtti
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1C, 70211 Kuopio, Finland; (A.S.); (J.P.); (M.R.); (E.T.); (A.U.)
| | - Hélène Dollfus
- INSERM, Ciliopathies Modeling and Associated Therapies Group, Laboratoire de Génétique Médicale, UMRS_U1112, Fédération de Médicine Translationelle de Strasbourg, Université de Strasbourg, 67085 Strasbourg, France; (D.A.); (C.O.); (H.D.)
- Laboratoire de Génétique Médicale, UMRS_U1112, Institut de Génétique Médicale d’Alsace, Fédération de Médicine Translationelle de Strasbourg, Hopiaux Universitaires de Strasbourg, Université de Strasbourg, 67085 Strasbourg, France
| | - Olivier Zelphati
- OZ Biosciences, Parc Scientifique de Luminy, Case 922, Zone Entreprise, CEDEX 9, 13288 Marseille, France; (M.B.); (F.P.); (A.W.)
- Correspondence: (O.Z.); or (V.M.)
| | - Vincent Marion
- INSERM, Ciliopathies Modeling and Associated Therapies Group, Laboratoire de Génétique Médicale, UMRS_U1112, Fédération de Médicine Translationelle de Strasbourg, Université de Strasbourg, 67085 Strasbourg, France; (D.A.); (C.O.); (H.D.)
- ALMS Therapeutics, Parc d’Innovation, 650 Boulevard Gonthier d’Andernach, 67400 Illkirch-Graffenstaden, France
- Correspondence: (O.Z.); or (V.M.)
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Walter A, DeWerd L. PP-0118 Dosimeter evaluation for measurement of radial dose distributions for electronic brachytherapy. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)06428-8] [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]
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Castellano T, Maxwell J, Walter A, Thompson J, Landrum L. Phase II trial of vaginal cuff brachytherapy followed by dose-dense chemotherapy in early-stage endometrial cancer patients with enriched, high-intermediate risk factors for recurrence. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.411] [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: 10/23/2022]
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Walter A, Calite E, Gembruch U, Müller A, Geipel A. Intrauterine Wachstumsretardierung und Polyhydramnion – Spektrum möglicher Ursachen und Einfluss auf das postnatale Outcome. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1717986] [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: 10/23/2022] Open
Affiliation(s)
- A Walter
- Universität Bonn, Abteilung für Geburtshilfe und Pränatale Medizin
| | - E Calite
- Universität Bonn, Abteilung für Geburtshilfe und Pränatale Medizin
| | - U Gembruch
- Universität Bonn, Abteilung für Geburtshilfe und Pränatale Medizin
| | - A Müller
- Universität Bonn, Abteilung für Neonatologie
| | - A Geipel
- Universität Bonn, Abteilung für Geburtshilfe und Pränatale Medizin
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Malczewska A, Procner A, Walter A, Kusnierz K, Zajecki W, Aslanian H, Kos-Kudla B. The NETest liquid biopsy is diagnostic for gastric neuroendocrine tumors: observations on the blood-based identification of microscopic and macroscopic residual diseaseOK. BMC Gastroenterol 2020; 20:235. [PMID: 32703157 PMCID: PMC7376918 DOI: 10.1186/s12876-020-01348-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 06/16/2020] [Indexed: 12/19/2022] Open
Abstract
Background NETest, a novel multi-gene liquid biopsy has utility in neuroendocrine tumor (NET) diagnosis and identification of residual disease. We independently assessed utility of the NETest to diagnose gastric neuroendocrine neoplasms (GNENs) and identify micro- and macroscopic residual disease. Methods Cohorts comprised histologically confirmed GNENs at biopsy, n = 46; GNETs Type 1: 42 (32 NET G1, 10 NET G2), a GNET Type 3: 1 well-differentiated NET G3, neuroendocrine carcinomas (NECs) (n = 3), and controls (n = 63). Disease status at sampling was assessed by gastroscopy, histology (resection margin [R] positivity of polypectomy or biopsy), EUS, CT or MRI, and/or 68Ga-DOTA-TATE PET/CT. Groups included image- (gastroscopy, EUS, and anatomical and/or functional imaging) positive or image negative disease. NETest assay by PCR (spotted plates, normal cut-off: 20). Data: mean ± SD. Results Disease extent: Image-negative (n = 30) (21 R0, 9 R1); Image-positive, n = 16. Diagnosis: NETest was increased in GNETs (23 ± 11) vs. controls (7 ± 4, p < 0.0001). In histology-positive, the NETest accuracy was 100% (25/25). Microscopic disease: In image-negative but R1, NETest was elevated in 100% (9/9; 28 ± 9). Levels were elevated vs. controls (7 ± 4, p < 0.0001), or R0 (16 ± 11, p = 0.02). Eight of 21 R0, exhibited positive NETest. Macroscopic disease: Gastric lesions were multiple: 38%, single: 62%, submucosal: 13%, or ulcerated: 13%. Lesions size was ≤5 mm (50%), > 5–9.9 mm (17%), 10–19.9 mm (17%), ≥20 mm (17%) [≥10 mm: 34%). The NETest accuracy was 100% (16/16). Levels (28 ± 7) were higher than controls (7 ± 4, p < 0.0001) or R0 (16 ± 11, p = 0.002) but not to R1 (28 ± 9, p = 0.5). Conclusions NETest is diagnostic for gastric NETs. Elevated levels identify both microscopic and macroscopic residual disease. In histology/image-negative disease, elevated NETest may reflect early evidence of increased neuroendocrine gene expression of hypergastrinemia-induced neoplastic transformation of enterochromaffin-like (ECL) cells to tumor status. A sensitive liquid biopsy has utility in the management and surveillance of gastric NET disease.
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Affiliation(s)
- A Malczewska
- Department of Endocrinology and Neuroendocrine Tumors, Medical University of Silesia, ul. Ceglana 35, 40-514, Katowice, Poland.
| | - A Procner
- Department of Endocrinology and Neuroendocrine Tumors, Medical University of Silesia, ul. Ceglana 35, 40-514, Katowice, Poland
| | - A Walter
- Department of Endocrinology and Neuroendocrine Tumors, Medical University of Silesia, ul. Ceglana 35, 40-514, Katowice, Poland
| | - K Kusnierz
- Department of Gastrointestinal Surgery, Medical University of Silesia, ul. Medykow 14, 40-752, Katowice, Poland
| | - W Zajecki
- Department of Pathology, Medical University of Silesia, ul. 3 Maja 13-15, 41-800, Zabrze, Poland
| | - H Aslanian
- Department of Digestive Diseases, Center for Advanced Endoscopy, Yale University School of Medicine, 310 Cedar Street, New Haven, CT, 06510, USA.
| | - B Kos-Kudla
- Department of Endocrinology and Neuroendocrine Tumors, Medical University of Silesia, ul. Ceglana 35, 40-514, Katowice, Poland
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Vollmer B, Steblau N, Ladwig N, Mayer C, Macek B, Mitousis L, Sigle S, Walter A, Wohlleben W, Muth G. Role of the Streptomyces spore wall synthesizing complex SSSC in differentiation of Streptomyces coelicolor A3(2). Int J Med Microbiol 2019; 309:151327. [PMID: 31324525 DOI: 10.1016/j.ijmm.2019.07.001] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Revised: 07/02/2019] [Accepted: 07/07/2019] [Indexed: 10/26/2022] Open
Abstract
A crucial stage of the Streptomyces life cycle is the sporulation septation, a process were dozens of cross walls are synchronously formed in the aerial hyphae in a highly coordinated manner. This process includes the remodeling of the spore envelopes to make Streptomyces spores resistant to detrimental environmental conditions. Sporulation septation and the synthesis of the thickened spore envelope in S. coelicolor A3(2) involves the Streptomyces spore wall synthesizing complex SSSC. The SSSC is a multi-protein complex including proteins directing peptidoglycan synthesis (MreBCD, PBP2, Sfr, RodZ) and cell wall glycopolymer synthesis (PdtA). It also includes two eukaryotic like serin/threonine protein kinases (eSTPK), PkaI and PkaH, which were shown to phosphorylate MreC. Since unbalancing phosphorylation activity by either deleting eSTPK genes or by expressing a second copy of an eSTPK gene affected proper sporulation, a model was developed, in which the activity of the SSSC is controlled by protein phosphorylation.
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Affiliation(s)
- B Vollmer
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany
| | - N Steblau
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany
| | - N Ladwig
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany
| | - C Mayer
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany
| | - B Macek
- Proteome Center Tuebingen, Interfakultaeres Institut für Zellbiologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 15, 72076 Tübingen, Germany
| | - L Mitousis
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany
| | - S Sigle
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany
| | - A Walter
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany
| | - W Wohlleben
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany
| | - G Muth
- Interfakultaeres Institut für Mikrobiologie und Infektionsmedizin Tuebingen IMIT, Mikrobiologie/Biotechnologie, Eberhard Karls Universitaet Tuebingen, Auf der Morgenstelle 28, 72076, Tuebingen, Germany.
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Nagelmüller S, Yates S, Walter A. Diel leaf growth of rapeseed at critically low temperature under winter field conditions. Funct Plant Biol 2018; 45:1110-1118. [PMID: 32290972 DOI: 10.1071/fp17337] [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] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 04/23/2018] [Indexed: 06/11/2023]
Abstract
Growth and development of winter crops is strongly limited by low temperature during winter. Monitoring the temporal dynamics and thermal limits of leaf growth in that period can give important insights into the growth physiology at low temperature, crop management and future breeding traits for winter crops. In this study, we focussed on winter rapeseed as a model, dicotyledonous winter crop to study leaf growth under natural winter field conditions. Leaf growth was measured using a high-resolution marker based image sequence analysis method and the results were evaluated in the context of environmental conditions. Leaves stopped growing at a base temperature of 0°C. Above ~4°C, leaves grew with a diel (24h) growth rhythm, which is typically known for dicots at thermally non-limiting growth conditions. Relative leaf growth rates at temperatures above this 4°C threshold were higher at night and showed a pronounced depression during the day, which we could describe by a model based on the environmental factors vapour pressure deficit (VPD), temperature and light with VPD exerting the strongest negative effect on leaf growth. We conclude that leaf growth of the selected model species at low temperatures shows a transition between pronounced environmental regulation and a superposition of environmental and internal, possibly circadian-clock-dependent regulation.
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Affiliation(s)
- S Nagelmüller
- Institute of Agricultural Sciences, Swiss Federal Institute of Technology, Universitätstrasse 2, 8092 Zurich, Switzerland
| | - S Yates
- Institute of Agricultural Sciences, Swiss Federal Institute of Technology, Universitätstrasse 2, 8092 Zurich, Switzerland
| | - A Walter
- Institute of Agricultural Sciences, Swiss Federal Institute of Technology, Universitätstrasse 2, 8092 Zurich, Switzerland
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Abstract
Plant disease detection represents a tremendous challenge for research and practical applications. Visual assessment by human raters is time-consuming, expensive, and error prone. Disease rating and plant protection need new and innovative techniques to address forthcoming challenges and trends in agricultural production that require more precision than ever before. Within this context, hyperspectral sensors and imaging techniques-intrinsically tied to efficient data analysis approaches-have shown an enormous potential to provide new insights into plant-pathogen interactions and for the detection of plant diseases. This article provides an overview of hyperspectral sensors and imaging technologies for assessing compatible and incompatible plant-pathogen interactions. Within the progress of digital technologies, the vision, which is increasingly discussed in the society and industry, includes smart and intuitive solutions for assessing plant features in plant phenotyping or for making decisions on plant protection measures in the context of precision agriculture.
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Affiliation(s)
- A-K Mahlein
- Institute of Sugar Beet Research (IfZ), 37079 Göttingen, Germany;
| | - M T Kuska
- Institute of Crop Science and Resource Conservation (INRES)-Plant Diseases and Plant Protection, University of Bonn, 53115 Bonn, Germany
| | - J Behmann
- Institute of Crop Science and Resource Conservation (INRES)-Plant Diseases and Plant Protection, University of Bonn, 53115 Bonn, Germany
| | - G Polder
- Greenhouse Horticulture, Wageningen University and Research, 6708PB Wageningen, Netherlands
| | - A Walter
- Institute of Agricultural Sciences, ETH Zürich, 8092 Zürich, Switzerland
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15
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Walter A, Gembruch U, Flöck A, Merz WM. Schwangerschaft bei hereditärer peripherer sensomotorischer Neuropathie: Ein Fallbericht. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1660666] [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: 10/28/2022] Open
Affiliation(s)
- A Walter
- Abteilung für Geburtshilfe und Pränatale Medizin, Universitätsklinikum Bonn
| | - U Gembruch
- Abteilung für Geburtshilfe und Pränatale Medizin, Universitätsklinikum Bonn
| | - A Flöck
- Abteilung für Geburtshilfe und Pränatale Medizin, Universitätsklinikum Bonn
| | - WM Merz
- Abteilung für Geburtshilfe und Pränatale Medizin, Universitätsklinikum Bonn
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Le Fèvre C, Vigneron C, Schuster H, Walter A, Marcellin L, Massard G, Lutz P, Noël G. Metastatic mediastinal mature teratoma with malignant transformation in a young man with an adenocarcinoma in a Klinefelter's syndrome: Case report and review of the literature. Cancer Radiother 2018; 22:255-263. [DOI: 10.1016/j.canrad.2017.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 09/18/2017] [Accepted: 10/19/2017] [Indexed: 11/25/2022]
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17
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Bordeianu C, Parat A, Piant S, Walter A, Zbaraszczuk-Affolter C, Meyer F, Begin-Colin S, Boutry S, Muller RN, Jouberton E, Chezal JM, Labeille B, Cinotti E, Perrot JL, Miot-Noirault E, Laurent S, Felder-Flesch D. Evaluation of the Active Targeting of Melanin Granules after Intravenous Injection of Dendronized Nanoparticles. Mol Pharm 2018; 15:536-547. [PMID: 29298480 DOI: 10.1021/acs.molpharmaceut.7b00904] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The biodistribution of dendronized iron oxides, NPs10@D1_DOTAGA and melanin-targeting NPs10@D1_ICF_DOTAGA, was studied in vivo using magnetic resonance imaging (MRI) and planar scintigraphy through [177Lu]Lu-radiolabeling. MRI experiments showed high contrast power of both dendronized nanoparticles (DPs) and hepatobiliary and urinary excretions. Little tumor uptake could be highlighted after intravenous injection probably as a consequence of the negatively charged DOTAGA-derivatized shell, which reduces the diffusion across the cells' membrane. Planar scintigraphy images demonstrated a moderate specific tumor uptake of melanoma-targeted [177Lu]Lu-NPs10@D1_ICF_DOTAGA at 2 h post-intravenous injection (pi), and the highest tumor uptake of the control probe [177Lu]Lu-NPs10@D1_DOTAGA at 30 min pi, probably due to the enhanced permeability and retention effect. In addition, ex vivo confocal microscopy studies showed a high specific targeting of human melanoma samples impregnated with NPs10@D1_ICF_Alexa647_ DOTAGA.
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Affiliation(s)
- C Bordeianu
- Université de Strasbourg , CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France.,Fondation IcFRC/Université de Strasbourg , 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - A Parat
- Université de Strasbourg , CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France.,Fondation IcFRC/Université de Strasbourg , 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - S Piant
- Université de Strasbourg , CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France.,Fondation IcFRC/Université de Strasbourg , 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - A Walter
- Université de Strasbourg , CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France.,Fondation IcFRC/Université de Strasbourg , 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - C Zbaraszczuk-Affolter
- Université de Strasbourg , INSERM, UMR 1121 Biomatériaux et Bioingénierie, 11 rue Humann F-67000 Strasbourg, France
| | - F Meyer
- Université de Strasbourg , INSERM, UMR 1121 Biomatériaux et Bioingénierie, 11 rue Humann F-67000 Strasbourg, France
| | - S Begin-Colin
- Université de Strasbourg , CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France.,Fondation IcFRC/Université de Strasbourg , 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
| | - S Boutry
- University of Mons , General, Organic and Biomedical Chemistry NMR and Molecular Imaging Laboratory, Avenue Maistriau 19, 7000 Mons, Belgium.,CMMI - Center for Microscopy and Molecular Imaging, MRI & Optical Imaging , Rue Adrienne Bolland 8, 6041 Gosselies, Belgium
| | - R N Muller
- University of Mons , General, Organic and Biomedical Chemistry NMR and Molecular Imaging Laboratory, Avenue Maistriau 19, 7000 Mons, Belgium.,CMMI - Center for Microscopy and Molecular Imaging, MRI & Optical Imaging , Rue Adrienne Bolland 8, 6041 Gosselies, Belgium
| | - E Jouberton
- Clermont Université, Université d'Auvergne , Laboratoire d'Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, F-63000 Clermont-Ferrand, France.,INSERM, U1240 , F-63005 Clermont-Ferrand, France
| | - J-M Chezal
- Clermont Université, Université d'Auvergne , Laboratoire d'Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, F-63000 Clermont-Ferrand, France.,INSERM, U1240 , F-63005 Clermont-Ferrand, France
| | - B Labeille
- CHU , Département de Dermatologie, F-42000 St. Etienne, France
| | - E Cinotti
- Department of Medical, Surgical and Neurological Science, Dermatology Section, University of Siena , S. Maria alle Scotte Hospital, F-53100 Siena, Italy
| | - J-L Perrot
- CHU , Département de Dermatologie, F-42000 St. Etienne, France
| | - E Miot-Noirault
- Clermont Université, Université d'Auvergne , Laboratoire d'Imagerie Moléculaire et Thérapie Vectorisée, BP 10448, F-63000 Clermont-Ferrand, France.,INSERM, U1240 , F-63005 Clermont-Ferrand, France
| | - S Laurent
- University of Mons , General, Organic and Biomedical Chemistry NMR and Molecular Imaging Laboratory, Avenue Maistriau 19, 7000 Mons, Belgium.,CMMI - Center for Microscopy and Molecular Imaging, MRI & Optical Imaging , Rue Adrienne Bolland 8, 6041 Gosselies, Belgium
| | - D Felder-Flesch
- Université de Strasbourg , CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000 Strasbourg, France.,Fondation IcFRC/Université de Strasbourg , 8 allée Gaspard Monge BP 70028, F-67083 Strasbourg Cedex, France
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Walter A, Finelli K, Bai X, Arnett P, Bream T, Seidenberg P, Lynch S, Johnson B, Slobounov S. Effect of Enzogenol® Supplementation on Cognitive, Executive, and Vestibular/Balance Functioning in Chronic Phase of Concussion. Dev Neuropsychol 2017; 42:93-103. [PMID: 28452602 DOI: 10.1080/87565641.2016.1256404] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
This study examined the feasibility of Enzogenol® as a potential treatment modality for concussed individuals with residual symptoms in the chronic phase. Forty-two student-athletes with history of sport-related concussion were enrolled, comparing Enzogenol® versus placebo. Testing was conducted using virtual reality (VR) and electroencephalography (EEG), with neuropsychological (NP) tasks primarily used to induce cognitive challenges. After six weeks, the Enzogenol® group showed enhanced frontal-midline theta, and decreased parietal theta power, indicating reduced mental fatigue. Subjects enrolled in the Enzogenol® group also self-reported reduced mental fatigue and sleep problems. This suggests that Enzogenol® has the potential to improve brain functioning in the chronic phase of concussion.
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Affiliation(s)
- A Walter
- a Penn State Center for Sport Concussion , Pennsylvania State University , University Park , Pennsylvania.,b Department of Kinesiology , Pennsylvania State University , University Park , Pennsylvania
| | - K Finelli
- a Penn State Center for Sport Concussion , Pennsylvania State University , University Park , Pennsylvania.,b Department of Kinesiology , Pennsylvania State University , University Park , Pennsylvania
| | - X Bai
- c Social, Life, and Engineering Sciences Imaging Center , Pennsylvania State University , University Park , Pennsylvania
| | - P Arnett
- c Social, Life, and Engineering Sciences Imaging Center , Pennsylvania State University , University Park , Pennsylvania
| | - T Bream
- d Department of Psychology , Pennsylvania State University , University Park , Pennsylvania
| | - P Seidenberg
- a Penn State Center for Sport Concussion , Pennsylvania State University , University Park , Pennsylvania.,e Intercollegiate Athletics , Pennsylvania State University , University Park , Pennsylvania
| | - S Lynch
- a Penn State Center for Sport Concussion , Pennsylvania State University , University Park , Pennsylvania.,e Intercollegiate Athletics , Pennsylvania State University , University Park , Pennsylvania
| | - B Johnson
- a Penn State Center for Sport Concussion , Pennsylvania State University , University Park , Pennsylvania.,b Department of Kinesiology , Pennsylvania State University , University Park , Pennsylvania
| | - S Slobounov
- a Penn State Center for Sport Concussion , Pennsylvania State University , University Park , Pennsylvania.,b Department of Kinesiology , Pennsylvania State University , University Park , Pennsylvania
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Bredin S, Fabre-Aubrespy M, Blondel B, Falguières J, Schuller S, Walter A, Fuentes S, Tropiano P, Steib JP, Charles YP. Percutaneous surgery for thoraco-lumbar fractures in ankylosing spondylitis: Study of 31 patients. Orthop Traumatol Surg Res 2017; 103:1235-1239. [PMID: 28964918 DOI: 10.1016/j.otsr.2017.07.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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] [Received: 03/30/2017] [Revised: 07/11/2017] [Accepted: 07/18/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND The risk of vertebral fracture is increased 4-fold in patients with ankylosing spondylitis (AS). Diagnostic challenges and the vulnerability associated with AS combine to generate high morbidity and mortality rates. The objective of this study was to assess the outcome of percutaneous thoraco-lumbar fracture surgery in patients with AS, in terms of quality of life, fracture healing, and complications. HYPOTHESIS Percutaneous surgery used to treat thoraco-lumbar fractures in patients with AS reliably provides fracture healing, preserves self-sufficiency, and minimises post-operative complications. METHODS Two centres included 31 patients with AS who were managed by percutaneous surgery for thoraco-lumbar fractures in 2013-2015. The data were reviewed retrospectively, although admission data were collected prospectively. Clinical outcomes were assessed by comparing the values at baseline and last follow-up of three variables: the Parker score, the visual analogue scale (VAS) pain score, and the EuroQol five dimensions (EQ-5D) quality-of-life score. Computed tomography was performed 1 year after surgery to evaluate bone healing, screw position, and implant loosening. Intra- and post-operative complications were recorded. RESULTS The 31 patients had a mean age at surgery of 75.1 years, a mean follow-up of 35.6 months, and a minimum follow-up of 12 months. Three patients died during follow-up. Mean hospital stay duration was 6 days. Cemented screw fixation was used in 18 patients. At last follow-up, all patients had recovered their self-sufficiency; the mean Parker score was 7.14, compared to 6.73 at baseline, the mean VAS pain score was 1.8, and the mean EQ-5D score decrease versus baseline was 0.07 (P=0.02). Bone healing was consistently achieved. Loosening of an uncemented pedicle screw was noted in 1 patient. Of the 228 screws implanted, 6 (2.6%) were improperly positioned, including 1 within the spinal canal in a patient free of neurological manifestations. Asymptomatic cement leakage was noted in 2 patients. DISCUSSION Percutaneous fixation of thoraco-lumbar fractures in patients with AS is a reliable method that produces a high healing rate and allows prompt patient mobilisation with preservation of self-sufficiency. The post-operative complication rate is low. LEVEL OF EVIDENCE IV, retrospective observational study.
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Affiliation(s)
- S Bredin
- Department of Orthopaedic Surgery, CHU Maison-Blanche, 45, rue Cognacq-Jay, 51092 Reims cedex, France.
| | - M Fabre-Aubrespy
- Service de chirurgie du rachis, université Aix-Marseille, CHU Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - B Blondel
- Service de chirurgie du rachis, université Aix-Marseille, CHU Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - J Falguières
- Service de chirurgie du rachis, université Aix-Marseille, CHU Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - S Schuller
- Service de chirurgie du rachis, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France
| | - A Walter
- Service de chirurgie du rachis, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France
| | - S Fuentes
- Service de neurochirurgie, université Aix-Marseille, CHU Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - P Tropiano
- Service de chirurgie du rachis, université Aix-Marseille, CHU Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - J-P Steib
- Service de chirurgie du rachis, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France
| | - Y-P Charles
- Service de chirurgie du rachis, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, BP 426, 67091 Strasbourg, France
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20
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Adjei A, Walter A, Cupit L, Siegel J, Holynskyj A, Childs B, Elbi C. Phase 1b multi-indication study of the antibody drug conjugate anetumab ravtansine in patients with mesothelin-expressing advanced or recurrent malignancies. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.057] [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: 11/12/2022] Open
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21
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Knüppel S, Walter A, Boeing H. Updated Multiple Source Method (MSM). Das Gesundheitswesen 2017. [DOI: 10.1055/s-0037-1606024] [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: 10/18/2022]
Affiliation(s)
- S Knüppel
- Deutsches Institut für Ernährungsforschung Potsdam-Rehbrücke, Epidemiologie, Nuthetal
| | - A Walter
- Deutsches Institut für Ernährungsforschung Potsdam-Rehbrücke, Epidemiologie, Nuthetal
| | - H Boeing
- Deutsches Institut für Ernährungsforschung Potsdam-Rehbrücke, Epidemiologie, Nuthetal
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22
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Kousa YA, Roushangar R, Patel N, Walter A, Marangoni P, Krumlauf R, Klein OD, Schutte BC. IRF6 and SPRY4 Signaling Interact in Periderm Development. J Dent Res 2017; 96:1306-1313. [PMID: 28732181 DOI: 10.1177/0022034517719870] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Rare mutations in IRF6 and GRHL3 cause Van der Woude syndrome, an autosomal dominant orofacial clefting disorder. Common variants in IRF6 and GRHL3 also contribute risk for isolated orofacial clefting. Similarly, variants within genes that encode receptor tyrosine kinase (RTK) signaling components, including members of the FGF pathway, EPHA3 and SPRY2, also contribute risk for isolated orofacial clefting. In the mouse, loss of Irf6 or perturbation of Fgf signaling leads to abnormal oral epithelial adhesions and cleft palate. Oral adhesions can result from a disruption of periderm formation. Here, we find that IRF6 and SPRY4 signaling interact in periderm function. We crossed Irf6 heterozygous ( Irf6+/-) mice with transgenic mice that express Spry4 in the basal epithelial layer ( TgKRT14::Spry4). While embryos with either of these mutations can have abnormal oral adhesions, using a new quantitative assay, we observed a nonadditive effect of abnormal oral epithelial adhesions in the most severely affected double mutant embryos ( Irf6+/-;TgKRT14::Spry4). At the molecular level, the sites of abnormal oral adhesions maintained periderm-like cells that express keratin 6, but we observed abnormal expression of GRHL3. Together, these data suggest that Irf6 and RTK signaling interact in regulating periderm differentiation and function, as well as provide a rationale to screen for epistatic interactions between variants in IRF6 and RTK signaling pathway genes in human orofacial clefting populations.
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Affiliation(s)
- Y A Kousa
- 1 Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA
| | - R Roushangar
- 1 Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA
| | - N Patel
- 2 Pediatrics and Human Development, Michigan State University, East Lansing, MI, USA
| | - A Walter
- 2 Pediatrics and Human Development, Michigan State University, East Lansing, MI, USA
| | - P Marangoni
- 3 Departments of Orofacial Sciences and Pediatrics and Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - R Krumlauf
- 4 Stowers Institute for Medical Research, Kansas City, MO, USA.,5 Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS, USA
| | - O D Klein
- 3 Departments of Orofacial Sciences and Pediatrics and Institute for Human Genetics, University of California, San Francisco, San Francisco, CA, USA
| | - B C Schutte
- 2 Pediatrics and Human Development, Michigan State University, East Lansing, MI, USA.,6 Departments of Microbiology and Molecular Genetics, Michigan State University, East Lansing, MI, USA
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Crim A, Rowland M, Ruskin R, Dvorak J, Greenwade M, Walter A, Gillen J, Ding K, Moore K, Gunderson C. Evaluation of the efficacy and toxicity profile associated with intraperitoneal chemotherapy use in older women. Gynecol Oncol 2017; 146:268-272. [PMID: 28583323 DOI: 10.1016/j.ygyno.2017.05.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/11/2017] [Accepted: 05/24/2017] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Intraperitoneal (IP) chemotherapy (CT) for treatment of epithelial ovarian cancer (EOC) has been shown to provide a substantial OS advantage. This study aims to compare the toxicity and benefits of IP CT in patients ≥70 with those <70. METHODS We performed a single institution retrospective review of patients diagnosed with Stage IIA-IIIC EOC from 2000 to 2013 who received IP CT. Clinicopathologic characteristics were extracted, and survival was calculated. RESULTS 133 patients were included with 100 pts. <70years old and 33 pts. ≥70years old. Clinical trial enrollment was similar despite age. In trial enrolled patients, older patients received statistically fewer cycles of therapy (6.4 vs 5.8, p=0.002) but had similar dose delays (0.9 vs 0.7, p=0.72), and modifications (0.9 vs 0.36, p=0.11). Median PFS (27 vs 31months) and OS (71 and 62months) were not statistically different. Grade 3/4 neutropenia was significantly worse in the older patients (82% vs 100%, p=0.04). Neuropathy grade ≥2 and other non-hematologic toxicities were not different between age groups. CONCLUSIONS Despite completing fewer cycles of IP CT, older EOC patients had comparable survival to younger patients. The population of older patients receiving IP CT in this study were on clinical trial and likely to be heartier than the general older population. IP CT appears well tolerated and effective among select older patients and is likely under-utilized outside of clinical trials.
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Affiliation(s)
- A Crim
- Section of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, OK, USA.
| | - M Rowland
- Section of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, OK, USA.
| | - R Ruskin
- Section of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, OK, USA.
| | - J Dvorak
- Department of Biostatistics and Epidemiology, University of Oklahoma, Oklahoma City, OK, USA.
| | - M Greenwade
- Section of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, OK, USA.
| | - A Walter
- Section of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, OK, USA.
| | - J Gillen
- Section of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, OK, USA.
| | - K Ding
- Department of Biostatistics and Epidemiology, University of Oklahoma, Oklahoma City, OK, USA.
| | - K Moore
- Section of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, OK, USA.
| | - C Gunderson
- Section of Gynecologic Oncology, Department of Obstetrics and Gynecology, University of Oklahoma, Oklahoma City, OK, USA.
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Gripp K, Baker L, Kandula V, Piatt J, Walter A, Chen Z, Messiaen L. Constitutional LZTR1
mutation presenting with a unilateral vestibular schwannoma in a teenager. Clin Genet 2017; 92:540-543. [DOI: 10.1111/cge.13013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 03/08/2017] [Accepted: 03/10/2017] [Indexed: 12/17/2022]
Affiliation(s)
- K.W. Gripp
- A. I. du Pont Hospital for Children/Nemours; Wilmington Delaware
| | - L. Baker
- A. I. du Pont Hospital for Children/Nemours; Wilmington Delaware
| | - V. Kandula
- A. I. du Pont Hospital for Children/Nemours; Wilmington Delaware
| | - J. Piatt
- A. I. du Pont Hospital for Children/Nemours; Wilmington Delaware
| | - A. Walter
- A. I. du Pont Hospital for Children/Nemours; Wilmington Delaware
| | - Z. Chen
- University of Alabama; Birmingham Alabama
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Kärger J, Shdanov SP, Walter A. NMR-Untersuchungen zur intrakristallinen Selbstdiffusion von n-Butan und n-Heptan an NaX-Zeolithen. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/zpch-1975-25641] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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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Kärger J, Pfeifer H, Rauscher M, Walter A. Selbstdiffusionsverhalten der homologen Reihe der n-Alkane von n-Butan bis n-Oktadekan in NaX-Zeolithen. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1978-25999] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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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Postel-Vinay S, Herbschleb K, Massard C, Woodcock V, Ocker M, Wilkinson G, Walter A, Ewerton F, Poelman M, Middleton M, Soria J. First-in-human phase I dose escalation study of the Bromodomain and Extra-Terminal motif (BET) inhibitor BAY 1238097 in subjects with advanced malignancies. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32620-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Affiliation(s)
- W. N. Chan
- Universidade Estadual de Campinas, Brazil; Petróleo Brasileiro S.A., Brasil
| | - A. Walter
- Universidade Estadual de Campinas, Brazil
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Hampel OA, Hasmann R, Karpinski N, Gießelmann LS, Hasmann SE, Hubig C, Böcking K, Hasmann T, Volkert LR, Böhm D, Melder L, Walter A, Schlaich S, Engler-Plörer S, Holl RW, Petermann F. Stepping Stones Triple P. Monatsschr Kinderheilkd 2016. [DOI: 10.1007/s00112-016-0175-y] [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: 10/21/2022]
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Affiliation(s)
- A. Zormann
- Department of Psychiatry, University of Basel, Basel, Switzerland
| | - J. Blum
- Department of Psychiatry, University of Basel, Basel, Switzerland
| | - C. Suenderhauf
- Clinical Pharmacology and Toxicology, University Hospital Basel, Basel, Switzerland
| | - M. Vogel
- Department of Psychiatry, University of Basel, Basel, Switzerland
| | - A. Walter
- Department of Psychiatry, University of Basel, Basel, Switzerland
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Blanco-Andujar C, Walter A, Cotin G, Bordeianu C, Mertz D, Felder-Flesch D, Begin-Colin S. Design of iron oxide-based nanoparticles for MRI and magnetic hyperthermia. Nanomedicine (Lond) 2016; 11:1889-910. [DOI: 10.2217/nnm-2016-5001] [Citation(s) in RCA: 181] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Iron oxide nanoparticles are widely used for biological applications thanks to their outstanding balance between magnetic properties, surface-to-volume ratio suitable for efficient functionalization and proven biocompatibility. Their development for MRI or magnetic particle hyperthermia concentrates much of the attention as these nanomaterials are already used within the health system as contrast agents and heating mediators. As such, the constant improvement and development for better and more reliable materials is of key importance. On this basis, this review aims to cover the rational design of iron oxide nanoparticles to be used as MRI contrast agents or heating mediators in magnetic hyperthermia, and reviews the state of the art of their use as nanomedicine tools.
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Affiliation(s)
- Cristina Blanco-Andujar
- Institut de Physique et de Chimie des Matériaux de Strasbourg IPCMS, UMR CNRS-UdS 7504, 23 rue du Loess, BP 43, 67034 STRASBOURG cedex 2, France
| | - Aurelie Walter
- Institut de Physique et de Chimie des Matériaux de Strasbourg IPCMS, UMR CNRS-UdS 7504, 23 rue du Loess, BP 43, 67034 STRASBOURG cedex 2, France
| | - Geoffrey Cotin
- Institut de Physique et de Chimie des Matériaux de Strasbourg IPCMS, UMR CNRS-UdS 7504, 23 rue du Loess, BP 43, 67034 STRASBOURG cedex 2, France
| | - Catalina Bordeianu
- Institut de Physique et de Chimie des Matériaux de Strasbourg IPCMS, UMR CNRS-UdS 7504, 23 rue du Loess, BP 43, 67034 STRASBOURG cedex 2, France
| | - Damien Mertz
- Institut de Physique et de Chimie des Matériaux de Strasbourg IPCMS, UMR CNRS-UdS 7504, 23 rue du Loess, BP 43, 67034 STRASBOURG cedex 2, France
| | - Delphine Felder-Flesch
- Institut de Physique et de Chimie des Matériaux de Strasbourg IPCMS, UMR CNRS-UdS 7504, 23 rue du Loess, BP 43, 67034 STRASBOURG cedex 2, France
| | - Sylvie Begin-Colin
- Institut de Physique et de Chimie des Matériaux de Strasbourg IPCMS, UMR CNRS-UdS 7504, 23 rue du Loess, BP 43, 67034 STRASBOURG cedex 2, France
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Carino A, Walter A, Testino A, Hofmann H. Continuous Synthesis of Gold Nanoparticles Using the Segmented Flow Tubular Reactor (SFTR). Chimia (Aarau) 2016. [DOI: 10.2533/chimia.2016.457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Greenwade M, Rowland M, Ruskin R, Ding K, Gillen J, Crim A, Walter A, Kleis B, Moore K, Gunderson C. Factors influencing clinical trial enrollment among ovarian cancer patients. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.332] [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: 11/30/2022]
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Rowland M, Ruskin R, Dvorak J, Gunderson C, Walter A, Crim A, Gillen J, Greenwade M, Ding K, Moore K. Exploring further the poor outcomes of elderly patients with platinum-sensitive recurrent ovarian cancer using a contemporary application of the SOCRATES study. Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.460] [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]
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Crim A, Rowland M, Ruskin R, Dvorak J, Greenwade M, Walter A, Gillen J, Ding K, Moore K, Gunderson C. Is intraperitoneal chemotherapy as effective within the elderly population for the treatment of epithelial ovarian cancer? Gynecol Oncol 2016. [DOI: 10.1016/j.ygyno.2016.04.304] [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]
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Chahoud I, Talsness C, Walter A, Grote K. Postnatal investigation of prenatally induced effects on the vertebral column of rats reduces the uncertainty of classification of anomalies. Reprod Toxicol 2015. [DOI: 10.1016/j.reprotox.2015.07.078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Olson R, Ozier D, LaPointe V, Walter A, Bowering G, Curtis S, Nichol A. Incidence of Patient Reported Depression at Time of Radiation Therapy Planning for Brain Metastases: Impact on Radiation Therapists and Counseling Services. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1752] [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: 10/22/2022]
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Rowland M, Ruskin R, Prammanasudh C, Slaughter K, Walter A, Landrum L, Moore K, Matzo M. Older versus younger gynecologic cancer patients: Differences in symptom experience. Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.07.032] [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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39
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Schürer M, Walter A, Brünner H, Langenbucher A. Erratum zu: Einfluss transparenter gelb- und orangefarbiger Kontaktlinsen auf das Farbunterscheidungsvermögen im gelben Farbbereich. Ophthalmologe 2015; 112:869. [DOI: 10.1007/s00347-015-0132-5] [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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40
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Slaughter K, Walter A, Gunderson C, Moore K, Skrepnek G. Surgical complications and economic outcomes among endometrial cancer cases undergoing hysterectomy in the United States. Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.07.036] [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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41
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Pesenti S, Jouve JL, Morin C, Wolff S, Sales de Gauzy J, Chalopin A, Ibnoulkhatib A, Polirsztok E, Walter A, Schuller S, Abelin-Genevois K, Leroux J, Lechevallier J, Kabaj R, Mary P, Fuentes S, Parent H, Garin C, Bin K, Peltier E, Blondel B, Chopin D. Evolution of adolescent idiopathic scoliosis: results of a multicenter study at 20 years' follow-up. Orthop Traumatol Surg Res 2015; 101:619-22. [PMID: 26194208 DOI: 10.1016/j.otsr.2015.05.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 10/30/2014] [Revised: 05/04/2015] [Accepted: 05/15/2015] [Indexed: 02/02/2023]
Abstract
INTRODUCTION To date there is no consensus on therapeutic indications in adolescent idiopathic scoliosis (AIS) with curvature between 30° and 60° at the end of growth. OBJECTIVE The objective of this study was to assess outcome in patients with moderate AIS. MATERIAL AND METHODS A multicenter retrospective study was conducted. Inclusion criteria were: Cobb angle, 30-60° at end of growth; and follow-up > 20 years. The data collected were angular values in adolescence and at last follow-up, and quality of life scores at follow-up. RESULTS A total of 258 patients were enrolled: 100 operated on in adolescence, 116 never operated on, and 42 operated on in adulthood. Mean follow-up was 27.8 years. Cobb angle progression significantly differed between the 3 groups: 3.2° versus 8.8° versus 23.6°, respectively; P < 0.001. In lumbar scoliosis, the risk of progression to ≥ 20° was significantly higher for initial Cobb angle > 35° (OR=4.278, P=0.002). There were no significant differences in quality of life scores. DISCUSSION Patients operated on in adolescence showed little radiological progression, demonstrating the efficacy of surgical treatment for curvature greater than 50°. Curvature greater than 40° was progressive and may require surgery in adulthood. Lumbar scoliosis showed greater potential progression than thoracic scoliosis in adulthood, requiring fusion as of 35° angulation. LEVEL OF EVIDENCE IV, retrospective study.
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Affiliation(s)
- S Pesenti
- Service d'orthopédie pédiatrique, hôpital d'Enfants de la Timone, Aix-Marseille université de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France.
| | - J-L Jouve
- Service d'orthopédie pédiatrique, hôpital d'Enfants de la Timone, Aix-Marseille université de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France
| | - C Morin
- Service d'orthopédie pédiatrique, institut Calot, rue du Docteur-Calot, 62600 Berck-sur-Mer, France
| | - S Wolff
- Service d'orthopédie, hôpital Saint-Joseph, 185, rue Raymond-Losserand, 75014 Paris, France
| | - J Sales de Gauzy
- Service d'orthopédie pédiatrique, hôpital des Enfants, 330, avenue de Grande-Bretagne, 31029 Toulouse cedex, France
| | - A Chalopin
- Service d'orthopédie pédiatrique, hôpital d'Enfants, 7, quai Moncousu, 44000 Nantes, France
| | - A Ibnoulkhatib
- Service d'orthopédie pédiatrique, hôpital des Enfants, 330, avenue de Grande-Bretagne, 31029 Toulouse cedex, France
| | - E Polirsztok
- Service de chirurgie du rachis, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, BP 426, 67091 Strasbourg cedex, France
| | - A Walter
- Service de chirurgie du rachis, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, BP 426, 67091 Strasbourg cedex, France
| | - S Schuller
- Service de chirurgie du rachis, hôpitaux universitaires de Strasbourg, 1, place de l'Hôpital, BP 426, 67091 Strasbourg cedex, France
| | - K Abelin-Genevois
- Service d'orthopédie pédiatrique, hôpital Femme-Mère-Enfants, CHU de Lyon, 59, boulevard Pinel, 69677 Bron, France
| | - J Leroux
- Clinique chirurgicale infantile, centre hospitalier universitaire de Rouen, 1, rue de Germont, 76000 Rouen, France
| | - J Lechevallier
- Clinique chirurgicale infantile, centre hospitalier universitaire de Rouen, 1, rue de Germont, 76000 Rouen, France
| | - R Kabaj
- Service d'orthopédie pédiatrique, hôpital Trousseau, 26, avenue du Dr-Arnold-Netter, 75012 Paris, France
| | - P Mary
- Service d'orthopédie pédiatrique, hôpital Trousseau, 26, avenue du Dr-Arnold-Netter, 75012 Paris, France
| | - S Fuentes
- Service de neurochirurgie, Timone, 264, rue Saint-Pierre, 13385 Marseille, France
| | - H Parent
- Centre du rachis, clinique Saint-Léonard, 18, rue de Bellinière, 49800 Trélazé, France
| | - C Garin
- Service d'orthopédie pédiatrique, hôpital Femme-Mère-Enfants, CHU de Lyon, 59, boulevard Pinel, 69677 Bron, France
| | - K Bin
- Service d'orthopédie pédiatrique, hôpital d'Enfants de la Timone, Aix-Marseille université de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France
| | - E Peltier
- Service d'orthopédie pédiatrique, hôpital d'Enfants de la Timone, Aix-Marseille université de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France
| | - B Blondel
- Service d'orthopédie pédiatrique, hôpital d'Enfants de la Timone, Aix-Marseille université de Marseille, 264, rue Saint-Pierre, 13385 Marseille, France
| | - D Chopin
- Service de chirurgie rachidienne, hôpital Roger-Salengro, rue Émile-Laine, 59037 Lille, France
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Li Q, Baster P, Kogiso M, Du Y, Lindsay H, Liu Z, Zhao X, Su J, Adesina A, Walter A, Murray J, McNall-Knapp R, Nazarian J, Parsons W, Chintagumpala M, Blaney S, Li XN. BT-08 * AUTOPSY DERIVED ORTHOTOPIC XENOGRAFT (ADOX) MOUSE MODELS FOR TERMINAL PEDIATRIC BRAIN TUMORS. Neuro Oncol 2015. [DOI: 10.1093/neuonc/nov061.18] [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: 11/12/2022] Open
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Paprottka PM, Paprottka KJ, Walter A, Haug AR, Trumm CG, Lehner S, Fendler WP, Jakobs TF, Reiser MF, Zech CJ. Safety of Radioembolization with (90)Yttrium Resin Microspheres Depending on Coiling or No-Coiling of Aberrant/High-Risk Vessels. Cardiovasc Intervent Radiol 2015; 38:946-56. [PMID: 25986465 DOI: 10.1007/s00270-015-1128-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 05/01/2015] [Indexed: 12/27/2022]
Abstract
PURPOSE To evaluate the safety of radioembolization (RE) with (90)Yttrium ((90)Y) resin microspheres depending on coiling or no-coiling of aberrant/high-risk vessels. MATERIALS AND METHODS Early and late toxicity after 566 RE procedures were analyzed retrospectively in accordance with the National Cancer Institute's Common Terminology Criteria for Adverse Events (CTCAE v3.0). For optimal safety, aberrant vessels were either coil embolized (n = 240/566, coiling group) or a more peripheral position of the catheter tip was chosen to treat right or left liver lobes (n = 326/566, no-coiling group). RESULTS Clinically relevant late toxicities (≥ Grade 3) were observed in 1% of our overall cohort. The no-coiling group had significantly less "any" (P = 0.0001) or "clinically relevant" (P = 0.0003) early toxicity. There was no significant difference (P > 0.05) in delayed toxicity in the coiling versus the no-coiling group. No RE-induced liver disease was noted after all 566 procedures. CONCLUSION RE with (90)Y resin microspheres is a safe and effective treatment option. Performing RE without coil embolization of aberrant vessels prior to treatment could be an alternative for experienced centers.
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Affiliation(s)
- P M Paprottka
- Department of Clinical Radiology, LMU - University of Munich, Marchioninistr. 15, 81377, Munich, Germany,
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Harrisberger F, Smieskova R, Schmidt A, Lenz C, Walter A, Wittfeld K, Grabe HJ, Lang UE, Fusar-Poli P, Borgwardt S. BDNF Val66Met polymorphism and hippocampal volume in neuropsychiatric disorders: A systematic review and meta-analysis. Neurosci Biobehav Rev 2015; 55:107-18. [PMID: 25956254 DOI: 10.1016/j.neubiorev.2015.04.017] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 04/15/2015] [Accepted: 04/25/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Brain-derived neurotrophic factor (BDNF) is a neurotrophin involved in neurogenesis and synaptic plasticity in the central nervous system, especially in the hippocampus, and has been implicated in the pathophysiology of several neuropsychiatric disorders. Its Val66Met polymorphism (refSNP Cluster Report: rs6265) is a functionally relevant single nucleotide polymorphism affecting the secretion of BDNF and is implicated in differences in hippocampal volumes. METHODS This is a systematic meta-analytical review of findings from imaging genetic studies on the impact of the rs6265 SNP on hippocampal volumes in neuropsychiatric patients with major depressive disorder, anxiety, bipolar disorder or schizophrenia. RESULTS The overall sample size of 18 independent clinical cohorts comprised 1695 patients. Our results indicated no significant association of left (Hedge's g=0.08, p=0.12), right (g=0.07, p=0.22) or bilateral (g=0.07, p=0.16) hippocampal volumes with BDNF rs6265 in neuropsychiatric patients. There was no evidence for a publication bias or any demographic, clinical, or methodological moderating effects. Both Val/Val homozygotes (g=0.32, p=0.004) and Met-carriers (g=0.20, p=0.004) from the patient sample had significantly smaller hippocampal volumes than the healthy control sample with the same allele. The magnitude of these effects did not differ between the two genotypes. CONCLUSION This meta-analysis suggests that there is no association between this BDNF polymorphism and hippocampal volumes. For each BDNF genotype, the hippocampal volumes were significantly lower in neuropsychiatric patients than in healthy controls.
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Affiliation(s)
- F Harrisberger
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - R Smieskova
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - A Schmidt
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - C Lenz
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - A Walter
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - K Wittfeld
- German Centre for Neurodegenerative Diseases (DZNE), Rostock/Greifswald, Germany
| | - H J Grabe
- German Centre for Neurodegenerative Diseases (DZNE), Rostock/Greifswald, Germany; Department of Psychiatry and Psychotherapy, University Medicine Greifswald, Helios Hospital Stralsund, Stralsund, Germany
| | - U E Lang
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland
| | - P Fusar-Poli
- King's College London, Department of Psychosis Studies, Institute of Psychiatry Psychology and Neuroscience, De Crespigny Park 16, SE58AF London, UK; OASIS Prodromal Team SLaM NHS Foundation Trust, London, UK
| | - S Borgwardt
- University of Basel, Department of Psychiatry (UPK), Wilhelm Klein-Strasse 27, 4056 Basel, Switzerland; University of Basel, Department of Clinical Research (DKF), 4031 Basel, Switzerland; King's College London, Department of Psychosis Studies, Institute of Psychiatry Psychology and Neuroscience, De Crespigny Park 16, SE58AF London, UK.
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Walter A, Slaughter K, Gunderson C, Moore K, Skrepnek G. Comorbid case-mix and predictors of inpatient admissions or death among ovarian cancer patients presenting to emergency departments in the United States. Gynecol Oncol 2015. [DOI: 10.1016/j.ygyno.2015.01.455] [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: 10/23/2022]
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Dreschke G, Probst M, Walter A, Pümpel T, Walde J, Insam H. Lactic acid and methane: improved exploitation of biowaste potential. Bioresour Technol 2015; 176:47-55. [PMID: 25460983 DOI: 10.1016/j.biortech.2014.10.136] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [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: 08/26/2014] [Revised: 10/24/2014] [Accepted: 10/27/2014] [Indexed: 06/04/2023]
Abstract
This feasibility study investigated a two-step biorefining approach to increase the value gained by recycling of organic municipal solid waste. Firstly, lactic acid was produced via batch fermentation at 37°C using the indigenous microbiome. Experiments revealed an optimal fermentation period of 24h resulting in high yields of lactic acid (up to 37gkg(-1)). The lactic acid proportion of total volatile fatty acid content reached up to 83%. Lactobacilli were selectively enriched to up to 75% of the bacterial community. Additionally conversion of organic matter to lactic acid was increased from 22% to 30% through counteracting end product inhibition by continuous lactic acid extraction. Secondly, fermentation residues were used as co-substrate in biomethane production yielding up to 618±41Nmlbiomethaneg(-1) volatile solids. Digestate, the only end product of this process can be used as organic fertilizer.
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Affiliation(s)
- G Dreschke
- Institute of Microbiology, University of Innsbruck, Technikerstraße 25d, 6020 Innsbruck, Austria.
| | - M Probst
- Institute of Microbiology, University of Innsbruck, Technikerstraße 25d, 6020 Innsbruck, Austria.
| | - A Walter
- Institute of Microbiology, University of Innsbruck, Technikerstraße 25d, 6020 Innsbruck, Austria.
| | - T Pümpel
- Institute of Microbiology, University of Innsbruck, Technikerstraße 25d, 6020 Innsbruck, Austria.
| | - J Walde
- Department of Statistics, University of Innsbruck, Universitätsstraße 15, 6020 Innsbruck, Austria.
| | - H Insam
- Institute of Microbiology, University of Innsbruck, Technikerstraße 25d, 6020 Innsbruck, Austria.
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Walter A, Garofalo A, Parat A, Jouhannaud J, Pourroy G, Voirin E, Laurent S, Bonazza P, Taleb J, Billotey C, Vander Elst L, Muller RN, Begin-Colin S, Felder-Flesch D. Validation of a dendron concept to tune colloidal stability, MRI relaxivity and bioelimination of functional nanoparticles. J Mater Chem B 2015; 3:1484-1494. [DOI: 10.1039/c4tb01954g] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A dendritic coating induces colloidal stability of nanoparticles through electrostatic and steric interactions.
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Ley C, Brendlé J, Walter A, Jacques P, Ibrahim A, Allonas X. On the interaction of triarylmethane dye crystal violet with LAPONITE® clay: using mineral nanoparticles to control the dye photophysics. Phys Chem Chem Phys 2015; 17:16677-81. [DOI: 10.1039/c5cp02370j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The combination of an organic dye with clays leads to very interesting hybrid materials with original properties.
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Affiliation(s)
- C. Ley
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires
- ENSCMu
- Université de Haute-Alsace
- 68093 Mulhouse Cedex
- France
| | - J. Brendlé
- Pôle Matériaux à Porosité Contrôlée
- Institut de Science des Matériaux de Mulhouse
- CNRS-UMR7361
- Université de Strasbourg-Université de Haute-Alsace
- 68093 Mulhouse Cedex
| | - A. Walter
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires
- ENSCMu
- Université de Haute-Alsace
- 68093 Mulhouse Cedex
- France
| | - P. Jacques
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires
- ENSCMu
- Université de Haute-Alsace
- 68093 Mulhouse Cedex
- France
| | - A. Ibrahim
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires
- ENSCMu
- Université de Haute-Alsace
- 68093 Mulhouse Cedex
- France
| | - X. Allonas
- Laboratoire de Photochimie et d'Ingénierie Macromoléculaires
- ENSCMu
- Université de Haute-Alsace
- 68093 Mulhouse Cedex
- France
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Schürer M, Walter A, Brünner H, Langenbucher A. [Effect of transparent yellow and orange colored contact lenses on color discrimination in the yellow color range]. Ophthalmologe 2014; 112:670-8. [PMID: 25520142 DOI: 10.1007/s00347-014-3165-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Colored transparent filters cause a change in color perception and have an impact on the perceptible amount of different colors and especially on the ability to discriminate between them. Yellow or orange tinted contact lenses worn to enhance contrast vision by reducing or blocking short wavelengths also have an effect on color perception. METHODS The impact of the yellow and orange tinted contact lenses Wöhlk SPORT CONTRAST on color discrimination was investigated with the Erlangen colour measurement system in a study with 14 and 16 subjects, respectively. In relation to a yellow reference color located at u' = 0.2487/v' = 0.5433, measurements of color discrimination thresholds were taken in up to 6 different color coordinate axes. Based on these thresholds, color discrimination ellipses were calculated. These results are given in the Derrington, Krauskopf and Lennie (DKL) color system. RESULTS Both contact lenses caused a shift of the reference color towards higher saturated colors. Color discrimination ability with the yellow and orange colored lenses was significantly enhanced along the blue-yellow axis in comparison to the reference measurements without a tinted filter. Along the red-green axis only the orange lens caused a significant reduction of color discrimination threshold distance to the reference color. CONCLUSION Yellow and orange tinted contact lenses enhance the ability of color discrimination. If the transmission spectra and the induced changes are taken into account, these results can also be applied to other filter media, such as blue filter intraocular lenses.
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Affiliation(s)
- M Schürer
- OncoRay - Nationales Zentrum für Strahlenforschung in der Onkologie, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland,
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Obert M, Schumacher F, Eska S, Seyfried M, Walter A, Krombach G, Verhoff M. Altersbestimmung menschlicher Kalotten. Rechtsmedizin (Berl) 2014. [DOI: 10.1007/s00194-014-1000-3] [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: 11/28/2022]
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