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Baudin E, Goichot B, Berruti A, Hadoux J, Moalla S, Laboureau S, Noelting S, De La Fouchardière C, Kienitz T, Deutschbein T, Zovato S, Amar L, Tabarin A, Timmers H, Niccoli P, Attard M. Essai randomisé en double aveugle du Sunitinib dans les phéochromocytomes et paragangliomes malins (PPGM) : résultats de l’étude internationale FIRSTMAPPP. Annales d'Endocrinologie 2021. [DOI: 10.1016/j.ando.2021.07.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Nizamuddin S, Koidl S, Bhuiyan T, Werner TV, Biniossek ML, Bonvin AMJJ, Lassmann S, Timmers HT. Integrating quantitative proteomics with accurate genome profiling of transcription factors by greenCUT&RUN. Nucleic Acids Res 2021; 49:e49. [PMID: 33524153 PMCID: PMC8136828 DOI: 10.1093/nar/gkab038] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 01/08/2021] [Accepted: 01/16/2021] [Indexed: 11/14/2022] Open
Abstract
Genome-wide localization of chromatin and transcription regulators can be detected by a variety of techniques. Here, we describe a novel method ‘greenCUT&RUN’ for genome-wide profiling of transcription regulators, which has a very high sensitivity, resolution, accuracy and reproducibility, whilst assuring specificity. Our strategy begins with tagging of the protein of interest with GFP and utilizes a GFP-specific nanobody fused to MNase to profile genome-wide binding events. By using a GFP-nanobody the greenCUT&RUN approach eliminates antibody dependency and variability. Robust genomic profiles were obtained with greenCUT&RUN, which are accurate and unbiased towards open chromatin. By integrating greenCUT&RUN with nanobody-based affinity purification mass spectrometry, ‘piggy-back’ DNA binding events can be identified on a genomic scale. The unique design of greenCUT&RUN grants target protein flexibility and yields high resolution footprints. In addition, greenCUT&RUN allows rapid profiling of mutants of chromatin and transcription proteins. In conclusion, greenCUT&RUN is a widely applicable and versatile genome-mapping technique.
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Affiliation(s)
- Sheikh Nizamuddin
- Department of Urology, Medical Center-University of Freiburg, 79016 Freiburg, Germany.,German Cancer Consortium (DKTK) partner site Freiburg, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Stefanie Koidl
- Department of Urology, Medical Center-University of Freiburg, 79016 Freiburg, Germany.,German Cancer Consortium (DKTK) partner site Freiburg, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Tanja Bhuiyan
- Department of Urology, Medical Center-University of Freiburg, 79016 Freiburg, Germany.,German Cancer Consortium (DKTK) partner site Freiburg, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Tamara V Werner
- German Cancer Consortium (DKTK) partner site Freiburg, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,Institute for Surgical Pathology, Medical Center-University of Freiburg, 79016 Freiburg, Germany
| | - Martin L Biniossek
- Institute for Molecular Medicine and Cell Research, Medical Center-University of Freiburg, 79016 Freiburg, Germany
| | - Alexandre M J J Bonvin
- Bijvoet Centre for Biomolecular Research, Faculty of Science - Chemistry, Utrecht University, Utrecht 3584CH, the Netherlands
| | - Silke Lassmann
- German Cancer Consortium (DKTK) partner site Freiburg, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,Institute for Surgical Pathology, Medical Center-University of Freiburg, 79016 Freiburg, Germany
| | - HThMarc Timmers
- Department of Urology, Medical Center-University of Freiburg, 79016 Freiburg, Germany.,German Cancer Consortium (DKTK) partner site Freiburg, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
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Bignell LJ, Barberio E, Froehlich MB, Lane GJ, Lennon O, Mahmood I, Nuti F, Rahman MS, Simenel C, Spinks NJ, Stuchbery AE, Timmers H, Wallner A, Wang L, Wu J, Zhong YY. SABRE and the Stawell Underground Physics Laboratory Dark Matter Research at the Australian National University. EPJ Web Conf 2020. [DOI: 10.1051/epjconf/202023201002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The direct detection of dark matter is a key problem in astroparticle physics that generally requires the use of deep-underground laboratories for a low-background environment where the rare signals from dark matter interactions can be observed. This work reports on the Stawell Underground Physics Laboratory – currently under construction and the first such laboratory in the Southern Hemisphere – and the associated research program. A particular focus will be given to ANU’s contribution to SABRE, a NaI:Tl dark matter, direct detection experiment that aims to confirm or refute the long-standing DAMA result. Preliminary measurements of the NaI:Tl quenching factor and characterisation of the SABRE liquid scintillator veto are reported.
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Jansing C, Wahab H, Timmers H, Gaupp A, Mertins HC. Soft X-ray refractive index by reconciling total electron yield with specular reflection: experimental determination of the optical constants of graphite. J Synchrotron Radiat 2018; 25:1433-1443. [PMID: 30179183 DOI: 10.1107/s1600577518010408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 07/18/2018] [Indexed: 06/08/2023]
Abstract
The complex refractive index of many materials is poorly known in the soft X-ray range across absorption edges. This is due to saturation effects that occur there in total-electron-yield and fluorescence-yield spectroscopy and that are strongest at resonance energies. Aiming to obtain reliable optical constants, a procedure that reconciles electron-yield measurements and reflection spectroscopy by correcting these saturation effects is presented. The procedure takes into account the energy- and polarization-dependence of the photon penetration depth as well as the creation efficiency for secondary electrons and their escape length. From corrected electron-yield spectra the absorption constants and the imaginary parts of the refractive index of the material are determined. The real parts of the index are subsequently obtained through a Kramers-Kronig transformation. These preliminary optical constants are refined by simulating reflection spectra and adapting them, so that measured reflection spectra are reproduced best. The efficacy of the new procedure is demonstrated for graphite. The optical constants that have been determined for linearly polarized synchrotron light incident with p- and s-geometry provide a detailed and reliable representation of the complex refractive index of the material near π- and σ-resonances. They are also suitable for allotropes of graphite such as graphene.
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Affiliation(s)
- C Jansing
- University of Applied Sciences Münster, Stegerwaldstrasse 39, D-48565 Steinfurt, Germany
| | - H Wahab
- The University of New South Wales, UNSW Canberra, ACT 2600, Australia
| | - H Timmers
- The University of New South Wales, UNSW Canberra, ACT 2600, Australia
| | - A Gaupp
- HZB, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany
| | - H C Mertins
- University of Applied Sciences Münster, Stegerwaldstrasse 39, D-48565 Steinfurt, Germany
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Sue M, Prejbisz A, Beuschlein F, Fassnacht M, Fliedner S, Skondra C, Lenders J, Timmers H, Mannelli M, Klink B, Robledo M, Januszewicz A, Eisenhofer G. Prospective prediction of germ line mutations in patients with pheochromocytomas and paragangliomas according to biochemical profiles. Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1547722] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Peitzsch M, Bursztyn M, Pamporaki C, Därr R, Fliedner S, Timmers H, Lenders J, Prejbisz A, Eisenhofer G. Biochemical diagnosis of pheochromocytoma by measurements of overnight excretion levels of catecholamines and metabolites as a simplified alternative to 24-hour collections. Exp Clin Endocrinol Diabetes 2015. [DOI: 10.1055/s-0035-1547715] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sas TCJ, Gault EJ, Bardsley MZ, Menke LA, Freriks K, Perry RJ, Otten BJ, de Muinck Keizer-Schrama SMPF, Timmers H, Wit JM, Ross JL, Donaldson MDC. Safety and efficacy of oxandrolone in growth hormone-treated girls with Turner syndrome: evidence from recent studies and recommendations for use. Horm Res Paediatr 2015; 81:289-97. [PMID: 24776783 DOI: 10.1159/000358195] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 12/23/2013] [Indexed: 11/19/2022] Open
Abstract
There has been no consensus regarding the efficacy and safety of oxandrolone (Ox) in addition to growth hormone (GH) in girls with Turner syndrome (TS), the optimal age of starting this treatment, or the optimal dose. This collaborative venture between Dutch, UK and US centers is intended to give a summary of the data from three recently published randomized, placebo-controlled, double-blind studies on the effects of Ox. The published papers from these studies were reviewed within the group of authors to reach consensus about the recommendations. The addition of Ox to GH treatment leads to an increase in adult height, on average 2.3–4.6 cm. If Ox dosages<0.06 mg/kg/day are used, side effects are modest. The most relevant safety concerns are virilization(including clitoromegaly and voice deepening) and a transient delay of breast development. We advise monitoring signs of virilization breast development and possibly blood lipids during Ox treatment, in addition to regular follow-up assessments for TS. In girls with TS who are severely short for age, in whom very short adult stature is anticipated,or in whom the growth rate is modest despite good compliance with GH, adjunctive treatment with Ox at a dosage of 0.03–0.05 mg/kg/day starting from the age of 8–10 years onward scan be considered.
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Pamporaki C, Bursztyn M, Reimann M, Ziemssen T, Bornstein SR, Sweep FCGJ, Timmers H, Lenders JWM, Eisenhofer G. Seasonal variation of plasma free normetanephrine concentrations: implications for biochemical diagnosis of pheochromocytoma. Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1371997] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Sue M, Martucci V, Frey F, Lenders JWM, Timmers H, Pęczkowska M, Robledo M, Pacak K, Eisenhofer G. SDHB mutation testing in metastatic pheochromocytoma and paraganglioma: Is this required in patients with adrenaline-producing tumors? Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1372128] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Fliedner S, Engel T, Lendvai N, Shankavaram U, Nölting S, Wesley R, Elkalouhn A, Ungefroren H, Lehnert H, Timmers H, Pacak K. Anti-cancer potential of MAPK pathway inhibition in paragangliomas – effect of different statins on mouse pheochromocytoma cells. Exp Clin Endocrinol Diabetes 2014. [DOI: 10.1055/s-0034-1372004] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Amar L, Fassnacht M, Gimenez-Roqueplo AP, Januszewicz A, Prejbisz A, Timmers H, Plouin PF. Long-term postoperative follow-up in patients with apparently benign pheochromocytoma and paraganglioma. Horm Metab Res 2012; 44:385-9. [PMID: 22351478 DOI: 10.1055/s-0031-1301339] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Patients with pheochromocytoma or paraganglioma are at risk of developing tumor recurrences or new tumors after successful resection of the primary tumor. This review summarizes current knowledge concerning the incidence and risk factors for such events. The overall incidence exceeds 15%. Patients with inherited tumors have a higher probability of recurrence or new tumors. Most recurrences are metastatic, particularly in patients with SDHB mutations or nonhereditary tumors. We recommend the determination of plasma or urinary metanephrines (normetanephrine and metanephrine) 1 month after surgery. In patients with sporadic, single tumors ≤5 cm in diameter, clinical and biochemical follow-up should be performed every 2 years. However, this follow-up period can be reduced to yearly, if it is more simple and more convenient for patients and physicians. Patients with larger or multiple but apparently benign tumors and/or inherited disease should be tested 6 months after surgery and then every year for the rest of their lives. Imaging follow-up is also required in patients with inherited or malignant tumors.
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Affiliation(s)
- L Amar
- Paris-Descartes University, INSERM U-970, Assistance Publique-Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Hypertension Unit and Department of Genetics, Paris, France
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Abiona AA, Kemp W, Williams E, Timmers H. Clean recoil implantation of the 100Pd/Rh TDPAC probe using a solenoidal separator. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123503001] [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: 11/14/2022] Open
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Netea-Maier RT, van Lindert EJ, Timmers H, Schakenraad EL, Grotenhuis JA, Hermus AR. Cerebrospinal fluid leakage as complication of treatment with cabergoline for macroprolactinomas. J Endocrinol Invest 2006; 29:1001-5. [PMID: 17259798 DOI: 10.1007/bf03349214] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Treatment of patients with prolactinomas consists primarily of dopamine agonists (DA). Cerebrospinal fluid (CSF) leakage has sporadically been reported in patients with macroprolactinomas treated with short-acting DA such as bromocriptine. Little is known on the incidence of this complication in patients treated with the long-acting D2 specific DA cabergoline. We report three patients with CSF leakage shortly after initiation of cabergoline treatment for macroprolactinoma. All three patients responded rapidly to cabergoline (CAB) by shrinkage of the tumor and release of the optic chiasm compression. The CSF leakage occurred within 10 days after initiation of treatment. CAB treatment was not discontinued. In one patient the CSF leakage ceased spontaneously, with no additional therapy. The second patient had a surgical repair of the CSF fistula, permitting cabergoline to be continued without a recurrence of the CSF leakage. The third patient refused surgical repair of the sellar defect. In this patient the cabergoline dosage was temporarily decreased with no effect on the CSF leakage. Four years later, the CSF leakage is unchanged in this patient, whilst no other complications occurred during the follow-up. No infectious complications occurred in these three patients. In conclusion, patients with large, invasive macroprolactinomas are at risk of CSF leakage during medical treatment with CAB. It is advisable to warn these patients for occurrence of this complication and to monitor them closely especially during the first months of treatment.
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Affiliation(s)
- R T Netea-Maier
- Pituitary Center Nijmegen, Department of Endocrinology, Radboud University, Nijmegen, The Netherlands.
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Hinde DJ, Dasgupta M, Leigh JR, Mein JC, Morton CR, Newton JO, Timmers H. Conclusive evidence for the influence of nuclear orientation on quasifission. Phys Rev C Nucl Phys 1996; 53:1290-1300. [PMID: 9971066 DOI: 10.1103/physrevc.53.1290] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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15
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Leigh JR, Dasgupta M, Hinde DJ, Mein JC, Morton CR, Lemmon RC, Lestone JP, Newton JO, Timmers H, Wei JX, Rowley N. Barrier distributions from the fusion of oxygen ions with 144,148,154Sm and 186W. Phys Rev C Nucl Phys 1995; 52:3151-3166. [PMID: 9970861 DOI: 10.1103/physrevc.52.3151] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Morton CR, Hinde DJ, Leigh JR, Lestone JP, Dasgupta M, Mein JC, Newton JO, Timmers H. Resolution of the anomalous fission fragment anisotropies for the 16O+208Pb reaction. Phys Rev C Nucl Phys 1995; 52:243-251. [PMID: 9970503 DOI: 10.1103/physrevc.52.243] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Hinde DJ, Dasgupta M, Leigh JR, Lestone JP, Mein JC, Morton CR, Newton JO, Timmers H. Fusion-fission versus quasifission: Effect of nuclear orientation. Phys Rev Lett 1995; 74:1295-1298. [PMID: 10058984 DOI: 10.1103/physrevlett.74.1295] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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18
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Paul ES, Janzen VP, Radford DC, Ward D, Mullins SM, Fossan DB, LaFosse DR, Schnare H, Timmers H, Vaska P, Clark RM, Wadsworth R. High-spin collective structures in doubly-odd 114Sb. Phys Rev C Nucl Phys 1994; 50:2297-2306. [PMID: 9969916 DOI: 10.1103/physrevc.50.2297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Morton CR, Dasgupta M, Hinde DJ, Leigh JR, Lemmon RC, Lestone JP, Mein JC, Newton JO, Timmers H, Rowley N, Kruppa AT. Clear signatures of specific inelastic and transfer channels in the distribution of fusion barriers. Phys Rev Lett 1994; 72:4074-4077. [PMID: 10056375 DOI: 10.1103/physrevlett.72.4074] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Abstract
Contrast variation was used to measure recognition thresholds for lowercase letters, with the aim of obtaining a better understanding of the role that early stages of visual processing play in letter recognition. Frequency-of-recognition curves were measured for alphabets of different letter size. Since variation of the adaptational state of the eye changes the characteristics of primary visual processing in a quantifiable way, recognition thresholds were measured both at a high (150 cd m-2) and at a low (0.9 cd m-2) adaptation level. Thresholds decreased as letter size increased, in a way comparable with data on visual acuity. At the lower adaptation level, recognition thresholds became higher, which is also in accordance with visual acuity data. Furthermore, the slopes of the frequency-of-recognition curves for alphabets as a function of log contrast decreased with decreasing letter size. It is argued that this is mainly caused by an increasing dispersion of internal representations of individual letters on the internal psychological scale as letter size decreases.
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Affiliation(s)
- F J Blommaert
- Institute for Perception Research/IPO, Eindhoven, The Netherlands
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Boon FM, Timmers H. [A case of unusually rapidly fatal thallium poisoning]. Ned Tijdschr Geneeskd 1977; 121:1265-7. [PMID: 895912] [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: 12/24/2022]
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Abstract
A consumption coagulopathy was demonstrated in each of four patients with either ruptured aneurysm of the aorta or a dissecting aortic aneurysm. The most prominent features of this disorder were (1) a prolonged prothrombine time due to a decrease of one or more clotting factors, and (2) formation of fibrin and fibrinogen degradation products. Recognition of this coagulation disorder could be a valuable diagnostic tool to differentiate a ruptured or dissecting aortic aneurysm from other conditions with a similar acute onset. The coagulation disorder could be due to liberation of coagulant material from the aortic wall into the circulation or to an accumulation of clotting factors at the site of the lesion, secondary to the local exposition of tissue factors from the torn arterial wall. The probability of the latter mechanism is suggested by the local increase of radioactivity after the injection of 125I-fibrinogen.
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