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Hicks RJ, Dromain C, de Herder WW, Costa FP, Deroose CM, Frilling A, Koumarianou A, Krenning EP, Raymond E, Bodei L, Sorbye H, Welin S, Wiedenmann B, Wild D, Howe JR, Yao J, O’Toole D, Sundin A, Prasad V. ENETS standardized (synoptic) reporting for molecular imaging studies in neuroendocrine tumours. J Neuroendocrinol 2022; 34:e13040. [PMID: 34668262 PMCID: PMC11042683 DOI: 10.1111/jne.13040] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 07/14/2021] [Revised: 08/29/2021] [Accepted: 08/31/2021] [Indexed: 11/27/2022]
Abstract
The European Neuroendocrine Tumor Society (ENETS) promotes practices and procedures that aim to improve the standard of care delivered to patients diagnosed with or suspected of having neuroendocrine neoplasia (NEN). At its annual Scientific Advisory Board Meeting in 2018, experts in imaging, pathology and clinical care of patients with NEN drafted guidance for the standardised reporting of diagnostic studies critical to the diagnosis, grading, staging and treatment of NEN. These included pathology, radiology, endoscopy and molecular imaging procedures. In an iterative process, a synoptic reporting template for molecular imaging procedures was developed to guide personalised therapies. Following pilot implementation and refinement within the ENETS Center of Excellence network, harmonisation with specialist imaging societies including the Society of Nuclear Medicine, European Association of Nuclear Medicine and the International Cancer Imaging Society will be pursued.
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Affiliation(s)
- RJ Hicks
- Neuroendocrine Service, the Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - C Dromain
- Lausanne University Hospital, Department of Radiology and University of Lausanne, Lausanne, Switzerland
| | - W W de Herder
- Erasmus MC, Department of Internal Medicine, Section of Endocrinology, Rotterdam, The Netherlands
| | - FP Costa
- Centro de Oncologia of Hospital Sírio Libanês, Sao Paulo, Brazil
| | - C M Deroose
- University Hospitals Leuven, Nuclear Medicine and KU Leuven, Department of Imaging and Pathology, Nuclear Medicine & Molecular Imaging, Leuven, Belgium
| | - A Frilling
- Imperial College London, Department of Surgery and Cancer, Hammersmith Hospital, London, United Kingdom
| | - A Koumarianou
- National and Kapodistrian University of Athens, Hematology Oncology Unit, 4th Department of Internal Medicine, Athens, Greece
| | - EP Krenning
- Erasmus MC, Cyclotron Rotterdam BV, Rotterdam, The Netherlands
| | - E Raymond
- Medical Oncology, Hôspital Paris Saint-Joseph, Paris, France
| | - L Bodei
- Memorial Sloan Kettering Cancer Center, Department of Radiology, Molecular Imaging and Therapy Service, New York, USA
| | - H Sorbye
- Haukeland University Hospital, Department of Oncology and Department of Clinical Science, Bergen, Norway
| | - S Welin
- Endocrine Oncology, Uppsala University Hospital, Uppsala, Sweden
| | - B Wiedenmann
- Charité Universitätsmedizin Berlin, Berlin, Germany
| | - D Wild
- University of Basel Hospital, Department of Radiology and Nuclear Medicine, Basel, Switzerland
| | - JR Howe
- Department of Surgery, University of Iowa Carver College of Medicine, Iowa City, Iowa, USA
| | - J Yao
- University of Texas M.D. Anderson Cancer Center, Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine, Houston, Texas, USA
| | - D O’Toole
- St. James’s and St. Vincent’s University Hospitals & Trinity College Dublin, Dublin, Ireland
| | - A Sundin
- Department of Surgical Sciences, Uppsala University, Radiology and Molecular Imaging, Uppsala University Hospital, Uppsala, Sweden
| | - V Prasad
- Department of Nuclear Medicine, University Ulm, Ulm Germany
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Kjaer J, Stålberg P, Crona J, Welin S, Hellman P, Thornell A, Norlen O. Long-term outcome after resection and thermal hepatic ablation of pancreatic neuroendocrine tumour liver metastases. BJS Open 2021; 5:6325343. [PMID: 34291287 PMCID: PMC8295313 DOI: 10.1093/bjsopen/zrab062] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 05/24/2021] [Indexed: 01/20/2023] Open
Abstract
Background Pancreatic neuroendocrine tumours (Pan-NETs) are rare tumours that often present with or develop liver metastases. The aim of this retrospective study was to evaluate liver surgery and thermal hepatic ablation (THA) of Pan-NET liver metastases and to compare the outcomes with those of a control group. Method Patients with Pan-NET treated in Uppsala University Hospital and Sahlgrenska University Hospital from 1995–2018 were included. Patient records were scrutinized for baseline parameters, survival, treatment and complications. Results Some 108 patients met the criteria for inclusion; 57 patients underwent treatment with liver surgery or THA and 51 constitute the control group. Median follow-up was 3.93 years. Five-year survival in the liver surgery/THA group was 70.6 (95 per cent c.i. 0.57 to 0.84) per cent versus 42.4 (95 per cent c.i. 40.7 to 59.1) per cent in the control group (P = 0.016) and median survival was 9.1 (95 per cent c.i. 6.5 to 11.7) versus 4.3 (95 per cent c.i. 3.4–5.2) years. In a multivariable analysis, surgery or THA was associated with a decreased death-years rate (hazard ratio 0.403 (95 per cent c.i. 0.208 to 0.782, P = 0.007). Conclusion Liver surgery and/or THA was associated with longer overall survival in Pan-NET with acceptable mortality and morbidity rates. These treatments should thus be considered in Pan-NET patients with reasonable tumour burden in an intent to alleviate symptoms and to improve survival.
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Affiliation(s)
- J Kjaer
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - P Stålberg
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - J Crona
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - S Welin
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - P Hellman
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - A Thornell
- Department of Surgery, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - O Norlen
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
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Hörsch D, Garcia-Carbonero R, Valle J, Perros P, Welin S, Keeber L, Houchard A, Lapuerta P. Efficacy and safety of telotristat ethyl (TE) in combination with lanreotide (LAN) in patients with a neuroendocrine tumour and carcinoid syndrome (CS) diarrhoea (CSD): Meta-analysis of phase III double-blind placebo (PBO)-controlled TELESTAR and TELECAST studies. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy293.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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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Kjellman M, Welin S, Knigge U, Gronbaek H, Sorbye H, Thiis-Evensen E, Thyregod Jørgensen M, Johanson V, Schalin-Jäntti C, Myrenfors P, Ström T, Becker K, Belusa R. Plasma protein fingerprinting and machine learning for the diagnosis of small intestinal neuroendocrine tumors: The nordic NET biomarker group EXPLAIN study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx368.035] [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: 11/13/2022] Open
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Kulke M, Hörsch D, Caplin M, Anthony L, Bergsland E, Oberg K, Welin S, Warner R, Bohas CL, Kunz P, Grande E, Valle J, Lapuerta P, Banks P, Jackson S, Jiang W, Biran T, Pavel M. Integrated placebo-controlled safety analysis from clinical studies of telotristat ethyl for the treatment of carcinoid syndrome. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw369.07] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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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Kulke M, Horsch D, Caplin M, Anthony L, Bergsland E, Oberg K, Welin S, Warner R, Lombard-Bohas C, Kunz P, Grande E, Valle J, Fleming D, Lapuerta P, Banks P, Jackson S, Wheeler D, Zambrowicz B, Sands A, Pavel M. 37LBA Telotristat etiprate is effective in treating patients with carcinoid syndrome that is inadequately controlled by somatostatin analog therapy (the phase 3 TELESTAR clinical trial). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31951-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [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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Welin G, Welin S. The value of Welin's modification of the double contrast examination in early colorectal cancer. Front Gastrointest Res 2015; 5:14-6. [PMID: 499977 DOI: 10.1159/000402306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Welin S. Some Observations on the Roentgen Diagnosis of Non-Opaque Foreign Bodies Aspirated into the Bronchi. Acta Radiol 2013. [DOI: 10.1177/028418514802900516] [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: 11/16/2022]
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Welin S. On the Radiological Examination of the Eustachian Tube in Cases of Chronic Otitis. Acta Radiol 2013. [DOI: 10.1177/028418514702800111] [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: 11/17/2022]
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Welin S. Parallactic Fluoroscopy as an Aid in the Bronchoscopic Extraction of Foreign Bodies. Acta Radiol 2013. [DOI: 10.1177/028418514702800401] [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: 11/17/2022]
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Engstrom A, Welin S. A Method for the Quantitative Roentgenological Determination of the Amount of Calcium Salts in Bone Tissue: Its Use in the Study of Calcium Reduction in the Phalanges of the Fingers in Chronic Polyarthritis. Acta Radiol 2013. [DOI: 10.1177/028418514903100508] [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: 11/17/2022]
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Welin S. On a Peculiar Late Reaction in Radiologically Treated Cases of Cancer of the Hypopharynx: Preliminary Observations. Acta Radiol 2013. [DOI: 10.1177/028418514803000311] [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: 11/16/2022]
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Welin S. The Roentgen Examination of the Lingual Tonsil. Acta Radiol 2013. [DOI: 10.1177/028418514802900519] [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: 11/16/2022]
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Welin S. A New Projection of Canalis Opticus. Acta Radiol 2013. [DOI: 10.1177/028418513601700612] [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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Welin S. UBER DEN RONTGENOLOGISCHEN NACHWEIS DES ZELLSYSTEMS IM OS TEMPORALE DES FOETUS. Acta Radiol 2013. [DOI: 10.1177/028418514102200535] [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: 11/17/2022]
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Ahlstrom CG, Welin S. ZUR DIFFERENTIALDIAGNOSTIK DER EWINGSCHEN SARKOME: Ein Beitrag zur Kenntnis der primaren Retikulumzellensarkome des Skeletts und der sog. eosinophilen Granulome. Acta Radiol 2013. [DOI: 10.1177/028418514302400106] [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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Welin S. On the Roentgen Diagnosis of Cholesteatoma in the Temporal Bone. Acta Radiol 2013. [DOI: 10.1177/028418514402500309] [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: 11/16/2022]
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Welin S. The Roentgen Diagnostics of Perisinuous Abscesses. Acta Radiol 2013. [DOI: 10.1177/028418513902000507] [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: 11/16/2022]
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Welin S. A Contribution to the Roentgen Diagnostics of Limited Esophagitis. Acta Radiol 2013. [DOI: 10.1177/028418514602700330] [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: 11/16/2022]
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Akerlund A, Welin S. Roentgen Diagnosis of Malignant Tumors within the Boundary Region between the Pharynx and Esophagus. Acta Radiol 2013. [DOI: 10.1177/028418514402500547] [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: 11/16/2022]
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Welin S. Deglutition Anomaly Simulating Hypopharyngeal Cancer. Acta Radiol 2013. [DOI: 10.1177/028418513902000504] [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: 11/17/2022]
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Welin S. An Aid to the Roentgen Diagnosis of Ewing's Sarcomas. Acta Radiol 2013. [DOI: 10.1177/028418513902000108] [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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Andren L, Frieberg S, Welin S. Roentgen Diagnosis of Small Polyps in the Colon and Rectum. Acta Radiol 2013. [DOI: 10.1177/028418515504300302] [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: 11/17/2022]
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Welin S. Book Review: Etude Radioanatomique de l'Os Temporal. Acta Radiol 2013. [DOI: 10.1177/028418515604500516] [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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Welin S. >>Overshot Axial Projection>> Its Value in the Roentgen Examination of the Accessory Sinuses. Acta Radiol 2013. [DOI: 10.1177/028418514903100111] [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: 11/16/2022]
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Sorbye H, Welin S, Langer SW, Vestermark LW, Holt N, Osterlund P, Dueland S, Hofsli E, Guren MG, Ohrling K, Birkemeyer E, Thiis-Evensen E, Biagini M, Gronbaek H, Soveri LM, Olsen IH, Federspiel B, Assmus J, Janson ET, Knigge U. Predictive and prognostic factors for treatment and survival in 305 patients with advanced gastrointestinal neuroendocrine carcinoma (WHO G3): the NORDIC NEC study. Ann Oncol 2012; 24:152-60. [PMID: 22967994 DOI: 10.1093/annonc/mds276] [Citation(s) in RCA: 641] [Impact Index Per Article: 53.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND As studies on gastrointestinal neuroendocrine carcinoma (WHO G3) (GI-NEC) are limited, we reviewed clinical data to identify predictive and prognostic markers for advanced GI-NEC patients. PATIENTS AND METHODS Data from advanced GI-NEC patients diagnosed 2000-2009 were retrospectively registered at 12 Nordic hospitals. RESULTS The median survival was 11 months in 252 patients given palliative chemotherapy and 1 month in 53 patients receiving best supportive care (BSC) only. The response rate to first-line chemotherapy was 31% and 33% had stable disease. Ki-67<55% was by receiver operating characteristic analysis the best cut-off value concerning correlation to the response rate. Patients with Ki-67<55% had a lower response rate (15% versus 42%, P<0.001), but better survival than patients with Ki-67≥55% (14 versus 10 months, P<0.001). Platinum schedule did not affect the response rate or survival. The most important negative prognostic factors for survival were poor performance status (PS), primary colorectal tumors and elevated platelets or lactate dehydrogenase (LDH) levels. CONCLUSIONS Advanced GI-NEC patients should be considered for chemotherapy treatment without delay.PS, colorectal primary and elevated platelets and LDH levels were prognostic factors for survival. Patients with Ki-67<55% were less responsive to platinum-based chemotherapy, but had a longer survival. Our data indicate that it may not be correct to consider all GI-NEC as one single disease entity.
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Affiliation(s)
- H Sorbye
- Department of Oncology, Haukeland University Hospital, Bergen, Norway.
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Ahlstrom CG, Welin S. Zur Differentialdiagnostik Der Ewingschen Sarkome: Ein Beitrag zur Kenntnis der primaren Retikulumzellensarkome des Skeletts und der sog. eosinophilen Granulome. Acta Radiol 2010. [DOI: 10.3109/00016924309135641] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [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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Andrén L, Welin S. Über die Häufigkeit von Kolonpolypen bei ulzeröser Kolitis*. ROFO-FORTSCHR RONTG 2009. [DOI: 10.1055/s-0029-1226558] [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: 10/20/2022]
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Zeiler K, Furberg E, Tufveson G, Welin S. The ethics of non-heart-beating donation: how new technology can change the ethical landscape. J Med Ethics 2008; 34:526-529. [PMID: 18591287 DOI: 10.1136/jme.2007.021568] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The global shortage of organs for transplantation and the development of new and better medical technologies for organ preservation have resulted in a renewed interest in non-heart-beating donation (NHBD). This article discusses ethical questions related to controlled and uncontrolled NHBD. It argues that certain preparative measures, such as giving anticoagulants, should be acceptable before patients are dead, but when they have passed a point where further curative treatment is futile, they are in the process of dying and they are unconscious. Furthermore, the article discusses consequences of technological developments based on improvement of a chest compression apparatus used today to make mechanical heart resuscitation. Such technological development can be used to transform cases of non-controlled NHBD to controlled NHBD. In our view, this is a step forward since the ethical difficulties related to controlled NHBD are easier to solve than those related to non-controlled NHBD. However, such technological developments also evoke other ethical questions.
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Affiliation(s)
- K Zeiler
- Department of Medical and Health Science, Linköping University, Linköping 59050, Sweden.
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Granberg D, Eriksson LG, Welin S, Kindmark H, Janson ET, Skogseid B, Oberg K, Eriksson B, Nyman R. Liver embolization with trisacryl gelatin microspheres (embosphere) in patients with neuroendocrine tumors. Acta Radiol 2007; 48:180-5. [PMID: 17354139 DOI: 10.1080/02841850601080440] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE To report our experience of liver embolization with trisacryl gelatin microspheres (Embospheretrade mark) in patients with metastatic neuroendocrine tumors. MATERIAL AND METHODS Fifteen patients underwent selective embolization of the right or left hepatic artery with Embosphere. One lobe was embolized in seven patients and both lobes, on separate occasions, in eight patients. Seven patients had midgut carcinoids, two had lung carcinoids, one suffered from a thymic carcinoid, and five had endocrine pancreatic tumors. Eight patients suffered from endocrine symptoms, seven of whom had carcinoid syndrome and one WDHA (watery diarrhea, hypokalemia, achlorhydria) syndrome. RESULTS Partial radiological response was seen after eight embolizations (in six different patients), stable disease was observed after 13 embolizations (after three of these, necroses occurred), while radiological progression was noted after only two embolizations. Only two patients experienced a biochemical response. Clinical improvement of carcinoid syndrome was observed after five embolizations. There were no major complications. Fever >38 degrees C was seen after all but four embolizations, and urinary tract infections were diagnosed after eight embolizations. CONCLUSION Selective hepatic artery embolization with Embosphere particles is a safe treatment for patients with metastatic neuroendocrine tumors and may lead to partial radiological response as well as symptomatic improvement of disabling endocrine symptoms.
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Affiliation(s)
- D Granberg
- Department of Endocrine Oncology, University Hospital, Uppsala, Sweden.
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Buhl-Mortensen L, Myhr A, Welin S. Carbon sequestration, the precautionary approach and the responsibility of scientists. Water Sci Technol 2005; 52:205-12. [PMID: 16304953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
This paper reviews problems connected to the use of the deep-sea and sub-sea geological formations for carbon sequestration. We will focus on the risks and dangers involved in using this kind of large-scale engineering approach, which is not yet fully tested, to combat global warming. We will not provide a complete discussion on the technologies involved, but concentrate on a few principal questions, such as the responsibility of environmental scientists involved in this research. We will also discuss carbon sequestration in relation to the precautionary approach. We argue that there may be a place for large-scale engineering attempts, but this should be the last rather than the first option.
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Welin S, Lundin S. [Organ transplantation, ethics and culture in Japan. Japanese citizens may choose between cardiac death and brain death]. Lakartidningen 2001; 98:662-5. [PMID: 11475254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
The first heart transplantation in Japan was performed in 1968. However, the surgeon was prosecuted, and transplantations from cadaveric donors came to an end. A new law in 1997 offered the possibility to choose how one would be pronounced dead, and if one chose to be declared dead according to brain related criteria, then one could become a cadaveric donor, if certain conditions were fulfilled. The first donations and transplantations took place in 1999. The Japanese public has been reluctant to accept the concept of brain death. The integrity of the dead body seems to command greater respect in Japan than in Sweden, and there is a reluctance to treat body parts as exchangeable. At the same time many Japanese travel abroad to obtain organs. The act of 1997 is a very interesting way of trying to integrate a new technology in Japanese culture, and the process of obtaining informed consent from relatives relies on traditional cultural roles.
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Affiliation(s)
- S Welin
- Centrum för forskningsetik, Göteborgs universitet.
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Welin S. Increasing the availability of human organs for transplantation-some ethical issues. Transplant Proc 2001; 33:1877. [PMID: 11267549 DOI: 10.1016/s0041-1345(00)02732-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S Welin
- Centre for Research Ethics, Göteborg University, Göteborg, Sweden
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Abstract
What kind of patients may be recruited to early clinical trials of xenotransplantation? This is discussed under the assumption that the risk of viral infection to the public is non-negligible. Furthermore, the conditions imposed by the Helsinki declaration are analysed. The conclusion is that only patients at risk of dying and with no alternative treatment available should be recruited to xenotransplantation trials in the early phase. For some of the less dangerous cell or islet cell xenotransplantation other categories might be recruited. The risk of cell and islet cell xenotransplantation should, however, be weighted against the development of other technologies. In order to safeguard the public, the opt-out clause in the Helsinki declaration should not be fully applied. Legally binding rules on obligatory monitoring and restrictions should be imposed--before clinical trials start.
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Affiliation(s)
- S Welin
- Göteborg University, Sweden.
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Affiliation(s)
- S Welin
- Centre for Research Ethics, Göteborg University, Göteborg, Sweden
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Welin S. [More stringent rules concerning xenotransplantation proposed in a report: the risk of severe infection can not be excluded]. Lakartidningen 2000; 97:1926-8. [PMID: 10826350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- S Welin
- Centrum för forskningsetik, Göteborgs universitet
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Welin S. [Give the relatives time to decide about organ donation]. Lakartidningen 1999; 96:450-1. [PMID: 10064926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Lynöe N, Welin S. [Time to change the basis for forming of judgements by the research ethics committees? The treatment of persons involved in trials should be scrutinized for scientific quality]. Lakartidningen 1999; 96:490-2. [PMID: 10064939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Affiliation(s)
- N Lynöe
- Institutionen för socialmedicin, Norrlands Universitetssjukhus, Umeå
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Munthe C, Wahlström J, Welin S. [Moral roots of prenatal diagnosis. Good care of the disabled is crucial for the ethical quality]. Lakartidningen 1998; 95:750-3. [PMID: 9513321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- C Munthe
- Centrum för forskningsetik i Göteborg och medicinsk etik vid filosofiska institutionen, Stockholms universitet
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Welin S. [A Norwegian survey on priorities and resource allocation in medical research. Best cure for most]. Lakartidningen 1996; 93:1046-8. [PMID: 8656813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- S Welin
- Centrum för forskningsetik, Göteborg
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Abstract
It is shown that scanning force microscopy (SFM), operated in the attractive mode, can be used to obtain high resolution pictures of adsorbed fibrinogen molecules on solid surfaces, without the need for staining or special microscope grids. SFM also reveals the three-dimensional structure of the adsorbed molecules. Two forms of adsorbed fibrinogen are demonstrated on hydrophobic silicone dioxide surfaces: a trinodular about 60 nm long and a globular with about a 40 nm diameter. Polymeric networks formed after storage of the surface with adsorbed fibrinogen in PBS for 11 days are also shown. The SFM-results for the trinodular structure suggest the existence of loops or peptide chains extending outside the basic structure of the fibrinogen molecule.
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Affiliation(s)
- R Wigren
- Department of Physics and Measurement Technology, Linköping University, Sweden
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Mandenius CF, Welin S, Lundström I, Mosbach K. Coupling of biomolecules to silicon surfaces for use in ellipsometry and other related techniques. Methods Enzymol 1988; 137:388-94. [PMID: 3374348 DOI: 10.1016/0076-6879(88)37037-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Mandenius CF, Mosbach K, Welin S, Lundström I. Reversible and specific interaction of dehydrogenases with a coenzyme-coated surface continuously monitored with a reflectometer. Anal Biochem 1986; 157:283-8. [PMID: 3777430 DOI: 10.1016/0003-2697(86)90627-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Reversible affinity binding of NAD-dependent dehydrogenase to an NAD-coated silicon surface ("NAD biochip") has been accomplished. The silicon surface, which is favorable for use with optical techniques because of its excellent reflection properties, was precoated with a polymer to prevent nonspecific and irreversible adsorption. Using a new reflectometry technique based on measurement of the polarization change of light reflected upon the biochip, continuous monitoring of the affinity binding and subsequent desorption of alcohol dehydrogenase and lactate dehydrogenase from the NAD surface were possible; allowing repeated use of the same NAD chip--an advantage when the assay was carried out in a continuous reflectometer. With a flow rate of 0.5 ml/min, response times on the order of 30 s were obtained.
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Mandenius CF, Welin S, Danielsson B, Lundström I, Mosbach K. The interaction of proteins and cells with affinity ligands covalently coupled to silicon surfaces as monitored by ellipsometry. Anal Biochem 1984; 137:106-14. [PMID: 6731792 DOI: 10.1016/0003-2697(84)90354-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Two methods for the chemical binding of biomolecules to silicon surfaces are described. The first method utilizes an alkyl silane and a nucleophilic reagent to join the biomolecule to the silicon surface; the second method involves crosslinking with glutaraldehyde in order to couple the biomolecule and albumin molecules, which have first been physically adsorbed. The course of binding to the silicon surface has been followed with the aid of ellipsometry. This optical measuring technique estimates the thicknesses of, e.g., organic layers, by measuring the polarization properties of a light beam before and after reflection at surfaces. The method by which the binding of a biomolecule to its corresponding affinity ligand on silicon wafers can be followed with this technique is reported. The systems studied are concanavalin A-Saccharomyces cerevisiae cells, immunoglobulin G-Staphylococcus aureus cells, and an NAD-analog-lactate dehydrogenase. With ellipsometry it was possible to assess how the incubation time and the concentration of the cells and the biomolecules added influenced the results. It was found that an increasing time of incubation and higher concentration resulted in a more complete coverage of the silicon wafer surfaces.
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Welin S. New experiences with Welin's double-contrast method. Am J Proctol Gastroenterol Colon Rectal Surg 1980; 31:17-20. [PMID: 7446716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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