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Balogh O, Szilágyi E, Balogh N, Somogyi Z, Müller L. Half-life of serum anti-Müllerian hormone and changes after gonadectomy in adult female and male dogs with normal and abnormal gonads. Theriogenology 2024; 217:18-24. [PMID: 38237213 DOI: 10.1016/j.theriogenology.2024.01.004] [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] [Received: 08/22/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 02/09/2024]
Abstract
Anti-Müllerian hormone (AMH) is a biomarker for the presence of gonadal tissue. Changes in serum AMH after gonadectomy are not well established, and its serum half-life is unknown in dogs. We measured serum AMH with a validated electro-chemiluminescent immunoassay in adult female (n = 12) and male (n = 7) dogs with normal gonads, as well as in dogs with gonadal pathology (ovarian remnant syndrome, ORS n = 3, testicular tumor [Leydig cell, Sertoli cell, seminoma] n = 3, unilateral abdominal cryptorchid n = 4) on the day of gonadectomy (D0), and on D3, D7, D14 (females and males), and D21, D28 (males only). Males had higher AMH concentrations than females independent of gonadal status (P < 0.001). Dogs with ORS had lower initial AMH (0.45 ± 0.43 ng/ml) than bitches with normal gonads (1.16 ± 0.44 ng/ml; P = 0.027). Cryptorchid dogs had higher initial concentrations (80.57 ± 52.81 ng/ml) than males with normal gonads (7.92 ± 2.45 ng/ml; P = 0.004), and those with testicular tumors (18.63 ± 5.04 ng/ml) were intermediate (P ≥ 0.250). AMH decreased over time (P ≤ 0.012) and was 0.01-0.04 ng/ml by D14 in females and 0.02-0.12 ng/ml by D28 in males. Serum half-life in the whole study population was 2.85 ± 0.51 days and did not differ between groups. In conclusion, serum AMH can differentiate between intact and gonadectomized status of adult dogs by 14 days after ovario(hyster)ectomy in females and by 28 days after surgical castration in males.
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Affiliation(s)
- Orsolya Balogh
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, USA
| | - Eszter Szilágyi
- Department of Obstetrics and Food Animal Medicine Clinic, University of Veterinary Medicine Budapest, Hungary
| | | | - Zoltán Somogyi
- Department of Pharmacology and Toxicology, University of Veterinary Medicine Budapest, Hungary
| | - Linda Müller
- Department of Obstetrics and Food Animal Medicine Clinic, University of Veterinary Medicine Budapest, Hungary; ATRC Aurigon Ltd., Dunakeszi, Hungary.
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Müller L, Nasr AR, Jux B, Makdissi N, Trowbridge JW, Schmidt SV, Schultze JL, Quast T, Schulte-Schrepping J, Kolanus W, Mass E. Differential impact of high-salt levels in vitro and in vivo on macrophage core functions. Mol Biol Rep 2024; 51:343. [PMID: 38400845 PMCID: PMC10894081 DOI: 10.1007/s11033-024-09295-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 01/29/2024] [Indexed: 02/26/2024]
Abstract
The consumption of processed food is on the rise leading to huge intake of excess dietary salt, which strongly correlates with development of hypertension, often leading to cardiovascular diseases such as stroke and heart attack, as well as activation of the immune system. The effect of salt on macrophages is especially interesting as they are able to sense high sodium levels in tissues leading to transcriptional changes. In the skin, macrophages were shown to influence lymphatic vessel growth which, in turn, enables the transport of excess salt and thereby prevents the development of high blood pressure. Furthermore, salt storage in the skin has been linked to the onset of pro-inflammatory effector functions of macrophages in pathogen defence. However, there is only little known about the mechanisms which are involved in changing macrophage function to salt exposure. Here, we characterize the response of macrophages to excess salt both in vitro and in vivo. Our results validate and strengthen the notion that macrophages exhibit chemotactic migration in response to salt gradients in vitro. Furthermore, we demonstrate a reduction in phagocytosis and efferocytosis following acute salt challenge in vitro. While acute exposure to a high-salt diet in vivo has a less pronounced impact on macrophage core functions such as phagocytosis, our data indicate that prolonged salt challenge may exert a distinct effect on the function of macrophages. These findings suggest a potential role for excessive salt sensing by macrophages in the manifestation of diseases related to high-salt diets and explicitly highlight the need for in vivo work to decipher the physiologically relevant impact of excess salt on tissue and cell function.
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Affiliation(s)
- Linda Müller
- Molecular Immunology and Cell Biology, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany
- Developmental Biology of the Immune System, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany
| | - Aya Rafea Nasr
- Molecular Immunology and Cell Biology, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany
- Developmental Biology of the Immune System, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany
| | - Bettina Jux
- Molecular Immunology and Cell Biology, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany
| | - Nikola Makdissi
- Developmental Biology of the Immune System, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany
| | - Justin Wayne Trowbridge
- Molecular Immunology and Cell Biology, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany
| | - Susanne V Schmidt
- Genomics & Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
| | - Joachim L Schultze
- Genomics & Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
- Systems Medicine, Deutsches Zentrum Für Neurodegenerative Erkrankungen (DZNE) E.V, Bonn, Germany
- PRECISE Platform for Single Cell Genomics and Epigenomics, DZNE and University of Bonn, Bonn, Germany
| | - Thomas Quast
- Molecular Immunology and Cell Biology, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany
| | - Jonas Schulte-Schrepping
- Genomics & Immunoregulation, Life & Medical Sciences (LIMES) Institute, University of Bonn, Bonn, Germany
- Systems Medicine, Deutsches Zentrum Für Neurodegenerative Erkrankungen (DZNE) E.V, Bonn, Germany
| | - Waldemar Kolanus
- Molecular Immunology and Cell Biology, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany.
| | - Elvira Mass
- Developmental Biology of the Immune System, Life & Medical Sciences (LIMES) Institute, University of Bonn, 53115, Bonn, Germany.
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Somoskői B, Bordás L, Uno F, Kispál D, Müller L, Török D, Cseh S. Effects of different cryopreservation methods on canine isolated preantral follicles. Anim Reprod Sci 2023; 258:107361. [PMID: 37890201 DOI: 10.1016/j.anireprosci.2023.107361] [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] [Received: 09/13/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023]
Abstract
The aim of the present study was to compare the survival and developmental rate of canine isolated preantral follicles (PAFs) after cryopreservation with different methods (closed vs open vitrification). Follicles were isolated from ovaries randomly divided into three groups: fresh control, OPS (open pulled straw) vitrified and cryotube (CT) vitrified. Post-thaw viability of follicles and oocytes was assessed. Fresh and vitrified/thawed PAFs were cultured in 20 µl drops of FSH-supplemented medium for 10 days. Follicular growth, survival rate, estradiol production and ovulation rate were examined. CT method resulted in lower rate of live cells (58.7%) and oocytes (38.8%) than that of fresh ones (83.6% and 64%, respectively) and OPS (80.3% and 79.3%, respectively). Survival rate was similar to fresh follicles in OPS group (98.5% and 95.4%, respectively), while CT decreased the survival to 81.2%. Fresh follicles showed continuous growth, while CT follicles stopped to increase their size after 2 day. In the OPS vitrified follicles, this halting occurred between Day5 and Day10. Fresh follicles showed the highest estradiol production (range: 26.9 - 266.2 pg/ml). Comparing the two vitrified groups, lower estradiol concentration range was measured in the CT group (7.8-48.7 pg/ml vs. 15.4-89.6 pg/ml). Ovulation rate in each group was lowest in the OPS group (1.7% vs 7% and 8.9% in fesh and CT, respectively). Our data show that OPS vitrification provides superior survival rate, in vitro growth and hormonal production to CT. To our knowledge, these are the first results on comparing different cryopreservation protocols on canine isolated preantral follicles.
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Affiliation(s)
- Bence Somoskői
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Lilla Bordás
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Fusa Uno
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Dóra Kispál
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Linda Müller
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Dóra Török
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
| | - Sándor Cseh
- Department of Obstetrics and Food Animal Clinic, University of Veterinary Medicine, H-1078 Istvan str. 2, Budapest, Hungary.
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Graafen D, Müller L, Halfmann MC, Stoehr F, Foerster F, Düber C, Yang Y, Emrich T, Kloeckner R. Soft Reconstruction Kernels Improve HCC Imaging on a Photon-Counting Detector CT. Acad Radiol 2023; 30 Suppl 1:S143-S154. [PMID: 37095047 DOI: 10.1016/j.acra.2023.03.026] [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] [Received: 01/21/2023] [Revised: 03/08/2023] [Accepted: 03/20/2023] [Indexed: 04/26/2023]
Abstract
RATIONALE AND OBJECTIVES Hepatocellular carcinoma (HCC) is the only tumor entity that allows non-invasive diagnosis based on imaging without further histological proof. Therefore, excellent image quality is of utmost importance for HCC diagnosis. Novel photon-counting detector (PCD) CT improves image quality via noise reduction and higher spatial resolution, inherently providing spectral information. The aim of this study was to investigate these improvements for HCC imaging with triple-phase liver PCD-CT in a phantom and patient population study focusing on identification of the optimal reconstruction kernel. MATERIALS AND METHODS Phantom experiments were performed to analyze objective quality characteristics of the regular body and quantitative reconstruction kernels, each with four sharpness levels (36-40-44-48). For 24 patients with viable HCC lesions on PCD-CT, virtual monoenergetic images at 50 keV were reconstructed using these kernels. Quantitative image analysis included contrast-to-noise ratio (CNR) and edge sharpness. Three raters performed qualitative analyses evaluating noise, contrast, lesion conspicuity, and overall image quality. RESULTS In all contrast phases, the CNR was highest using the kernels with a sharpness level of 36 (all p < 0.05), with no significant influence on lesion sharpness. Softer reconstruction kernels were also rated better regarding noise and image quality (all p < 0.05). No significant differences were found in image contrast and lesion conspicuity. Comparing body and quantitative kernels with equal sharpness levels, there was no difference in image quality criteria, neither regarding in vitro nor in vivo analysis. CONCLUSION Soft reconstruction kernels yield the best overall quality for the evaluation of HCC in PCD-CT. As the image quality of quantitative kernels with potential for spectral post-processing is not restricted compared to regular body kernels, they should be preferred.
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Affiliation(s)
- D Graafen
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (D.G., L.M., M.C.H., F.S., C.D., Y.Y., T.E., R.K.).
| | - L Müller
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (D.G., L.M., M.C.H., F.S., C.D., Y.Y., T.E., R.K.)
| | - M C Halfmann
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (D.G., L.M., M.C.H., F.S., C.D., Y.Y., T.E., R.K.); German Center for Cardiovascular Research (DZHK), Partner-Site Rhine-Main, Mainz, Germany (M.C.H., T.E.)
| | - F Stoehr
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (D.G., L.M., M.C.H., F.S., C.D., Y.Y., T.E., R.K.)
| | - F Foerster
- Department of Medicine I, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (F.F.)
| | - C Düber
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (D.G., L.M., M.C.H., F.S., C.D., Y.Y., T.E., R.K.)
| | - Y Yang
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (D.G., L.M., M.C.H., F.S., C.D., Y.Y., T.E., R.K.)
| | - T Emrich
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (D.G., L.M., M.C.H., F.S., C.D., Y.Y., T.E., R.K.); German Center for Cardiovascular Research (DZHK), Partner-Site Rhine-Main, Mainz, Germany (M.C.H., T.E.); Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston, SC (T.E.)
| | - R Kloeckner
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany (D.G., L.M., M.C.H., F.S., C.D., Y.Y., T.E., R.K.)
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Nógrádi AL, Cope I, Arany-Toth A, Müller L, Csatári D, Hetyey C, Dudás-Györki Z, Manczur F, Schuster N, Jakab C, Németh T. Primary Urinary Bladder Tumors in Three Guinea Pigs (Cavia Porcellus). Top Companion Anim Med 2023; 56-57:100805. [PMID: 37607617 DOI: 10.1016/j.tcam.2023.100805] [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] [Received: 01/08/2023] [Revised: 05/05/2023] [Accepted: 08/15/2023] [Indexed: 08/24/2023]
Abstract
Urinary bladder tumors are not common in guinea pigs, but case numbers being diagnosed have increased in the past years. The authors present 3 referred cases of primary urinary bladder tumors in pet guinea pigs diagnosed using diagnostic imaging (CT, radiography, and ultrasonography) and exploratory laparotomy. Excision was not possible in the first case as the tumor was located at the neck of the urinary bladder and the owner opted for intraoperative euthanasia. The second and third cases both had tumors originating from the apex of the urinary bladder. The third guinea pig went into cardiac arrest during surgery and resuscitation was unsuccessful. The tumor was removed from the urinary bladder using partial cystectomy in the second case and 1-month postsurgery ultrasonographic examination showed no signs of tumor reoccurrence. Late recognition is the main reason for a negative outcome, as by this time tumors are already large and extensive. Whenever prolonged symptoms of hematuria are present and urolithiasis has been ruled out, ultrasonography should be undertaken to determine if a urinary tumor is the cause. Rechecks should be scheduled on a regular basis for guinea pigs when a definitive diagnosis can not be made at the initial presentation for vague clinical signs, as outcome and survival can reduce significantly when definitive treatment is delayed.
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Affiliation(s)
- Anna Linda Nógrádi
- Department of Exotic Animal and Wildlife Medicine, University of Veterinary Medicine, Budapest, Hungary.
| | - Iain Cope
- Newmarket Vets4Pets, Inside Pets at Home, Studland Retail Park, Newmarket, Suffolk, UK
| | - Attila Arany-Toth
- Department and Clinic of Surgery and Ophthalmology, University of Veterinary Medicine, Budapest, Hungary
| | - Linda Müller
- Department of Obstetrics and Food Animal Medicine Clinic, University of Veterinary Medicine, Budapest, Hungary
| | - Dóra Csatári
- Department of Exotic Animal and Wildlife Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Csaba Hetyey
- Department and Clinic of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Zoltán Dudás-Györki
- Department and Clinic of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Ferenc Manczur
- Department and Clinic of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | | | | | - Tibor Németh
- Department and Clinic of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
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Falus FA, Szabó KÉ, Becker Z, Müller L, Fok É, Balogh N, Manczur F. Albuminuria and proteinuria in dogs infected with Dirofilaria repens: A cross-sectional study. J Vet Intern Med 2023; 37:992-997. [PMID: 37185888 DOI: 10.1111/jvim.16712] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND It is unknown whether Dirofilaria repens is capable of causing similar glomerular lesions, as does Dirofilaria immitis. OBJECTIVE To determine whether D. repens infection could cause albuminuria or proteinuria. ANIMALS Sixty-five clinically healthy laboratory beagle dogs. METHODS In this cross-sectional study, dogs were tested for D. repens infection (modified Knott test, PCR test, D. immitis antigen test) and were grouped as "D. repens infected" or "control" dogs. Urinary albumin-to-creatinine ratio (UAC) and urinary protein-to-creatinine ratio (UPC) were measured from samples taken by cystocentesis. RESULTS Forty-three (26 infected, 17 control) dogs were included in the final study group. UAC but not UPC level was significantly higher in the infected group (UAC median 12.5; range, 0-700 mg/g and UPC median 0.15; range, 0.06-1.06) than in the control group (UAC median 6.3; range, 0-28 mg/g and UPC median 0.13; range, 0.05-0.64; P = .02 and P = .65). Overt proteinuria (UPC > 0.5) was present in 6/26 (23%) of the infected dogs and 1/17 (6%) of the control dogs. Albuminuria (UAC > 19 mg/g) was detected in 9/26 (35%) dogs in the infected group, and 2/17 dogs (12%) in the control group. CONCLUSIONS AND CLINICAL IMPORTANCE D. repens might cause similar glomerular lesions to those caused by D. immitis.
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Affiliation(s)
- Fruzsina A Falus
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Korinna É Szabó
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Zsolt Becker
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Linda Müller
- Department of Obstetrics and Food Animal Medicine Clinic, University of Veterinary Medicine, Budapest, Hungary
| | - Éva Fok
- Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest, Hungary
| | | | - Ferenc Manczur
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
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Schmidt M, Lübbe K, Decker T, Thill M, Bauer L, Müller V, Link T, Furlanetto J, Reinisch M, Mundhenke C, Hoffmann O, Zahn MO, Müller L, Denkert C, van Mackelenbergh M, Fasching P, Burchardi N, Nekljudova V, Loibl S. A multicentre, randomised, double-blind, phase II study to evaluate the tolerability of an induction dose escalation of everolimus in patients with metastatic breast cancer (DESIREE). ESMO Open 2022; 7:100601. [PMID: 36356410 PMCID: PMC9832733 DOI: 10.1016/j.esmoop.2022.100601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Stomatitis is one of the main reasons to discontinue everolimus in patients with hormone receptor-positive (HR+)/human epidermal growth factor receptor 2-negative (HER2-) metastatic breast cancer (mBC). To decrease stomatitis and subsequently early treatment discontinuations or dose reductions, the DESIREE trial investigated the use of a stepwise dose-escalation schedule of everolimus (EVE esc). PATIENTS AND METHODS DESIREE is a phase II, multicentre, randomised, double-blind, placebo-controlled trial in patients with HR+/HER2- mBC and progression/relapse after nonsteroidal aromatase inhibitor treatment. Patients were randomised to EVE esc (2.5 mg/day, week 1; 5 mg/day, week 2; 7.5 mg/day, week 3; 10 mg/day, weeks 4-24) or everolimus 10 mg/day (EVE 10mg) for 24 weeks plus exemestane. The primary endpoint was the incidence of stomatitis episodes grade ≥2 within 12 weeks of treatment. The secondary endpoints included toxicity, relative total dose intensity (RTDI) and quality of life (QoL). RESULTS A total of 160 patients were randomised and 156 started treatment (EVE esc: 80; EVE 10mg: 76). The median age of patients was 64 years (range 33-85), 56.3% patients in the EVE esc arm versus 42.1% in the EVE 10mg arm had liver metastasis (P = 0.081) and 62.5% versus 51.3% received over one metastatic therapy line (P = 0.196). Within 12 weeks, the incidence of stomatitis episodes grade ≥2 was significantly lower in the EVE esc arm compared with the EVE 10mg arm (28.8% versus 46.1%; odds ratio 0.47, 95% confidence interval 0.24-0.92; P = 0.026). Toxicity was in line with the known safety profile without new safety concerns. The median RTDI was 91.1% in the EVE esc arm versus 80.0% in the EVE 10mg arm (P = 0.329). Discontinuation rate in the first 3 weeks was 6.3% versus 15.8%, respectively (P = 0.073). QoL was comparable between the two treatment arms. CONCLUSIONS A dose-escalation schema of everolimus over 3 weeks can be successfully used to reduce the incidence of high-grade stomatitis in the first 12 weeks of treatment in patients with HR+/HER2- mBC. TRIAL REGISTRATION ClinicalTrials.govNCT02387099; https://clinicaltrials.gov/ct2/show/NCT02387099.
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Affiliation(s)
- M. Schmidt
- Universitätsmedizin Mainz, Mainz, Germany
| | - K. Lübbe
- Diakovere Henriettenstift Hannover, Hanover, Germany
| | - T. Decker
- Onkologie und Hämatologie Ravensburg, Ravensburg, Germany
| | - M. Thill
- Klinik für Gynäkologie und Gynäkologische Onkologie, Agaplesion Markus Krankenhaus, Frankfurt, Germany
| | - L. Bauer
- GRN gGmbH Klinik Weinheim, Weinheim, Germany
| | - V. Müller
- Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - T. Link
- Department of Gynecology and Obstetrics, Technische Universität Dresden, Dresden, Germany
| | | | - M. Reinisch
- Interdisciplinary Breast Unit, Kliniken Essen-Mitte, Essen, Germany
| | - C. Mundhenke
- Brustzentrum, Gynäkologisches Krebszentrum, Perinatalzentrum Level I, Klinikum Bayreuth, Bayreuth, Germany
| | | | - M.-O. Zahn
- MVZ Onkologische Kooperation Harz Dres./Zahn Fachärzte für Innere Medizin, Goslar, Germany
| | | | - C. Denkert
- Institut für Pathologie, Philipps-Universität Marburg und Universitätsklinikum Marburg (UKGM), Marburg, Germany
| | - M. van Mackelenbergh
- Universitätsklinikum Schleswig-Holstein, Klinik für Gynäkologie und Geburtshilfe, Schleswig-Holstein, Kiel, Germany
| | | | | | | | - S. Loibl
- German Breast Group, Neu-Isenburg, Germany,Correspondence to: Prof. Sibylle Loibl, German Breast Group, Dornhofstr. 10, 63263 Neu-Isenburg, Germany. Tel: +49 6102 7480 335 @GBG_Forschunghttps://twitter.com/GBG_Forschung
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Graafen D, Müller L, Halfmann M, Düber C, Hahn F, Yang Y, Emrich T, Kloeckner R. Photon-counting detector CT improves quality of arterial phase abdominal scans: A head-to-head comparison with energy-integrating CT. Eur J Radiol 2022; 156:110514. [PMID: 36108479 DOI: 10.1016/j.ejrad.2022.110514] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 07/12/2022] [Revised: 08/26/2022] [Accepted: 09/03/2022] [Indexed: 11/19/2022]
Abstract
PURPOSE Photon-counting detector (PCD)-CT is expected to have a substantial impact on oncologic abdominal imaging. We compared subjective and objective image quality between PCD-CT and conventional energy-integrating detector (EID-)CT arterial phase abdominal scans. METHODS This study included 84 patients undergoing both types of abdominal CT. EID-CT scans were acquired with a tube voltage of 100 kVp. With PCD-CT, acquired with 120-kVp, we reconstructed polychromatic T3D images and virtual monoenergetic images (VMIs) in 10-keV intervals from 40 to 90 keV. Quantitative image analysis included noise and contrast-to-noise ratio (CNR) of hepatic vessels, kidney cortex, and hypervascular liver lesions to liver parenchyma. Three raters used a 5-point Likert scale for qualitative image analysis of image noise and contrast, lesion conspicuity, and overall image quality. Radiation dose exposure (CT dose index) was compared between the two CT types. RESULTS Mean CT dose index and effective dose were respectively 18 % and 26 % lower with PCD-CT versus EID-CT. Compared with EID-CT, CNRs of kidney cortex and vessel to liver parenchyma were significantly higher in PCD-CT VMIs at energies ≤ 60 keV and in polychromatic T3D images (p < 0.004). Overall image quality of PCD-CT VMIs at 50 and 60 keV was rated as significantly better (p < 0.01) than the EID-CT images (inter-reader agreement alpha = 0.80). Lesion conspicuity was significantly better in low-keV VMIs (p < 0.03) and worse in > 70-keV VMIs. CONCLUSIONS With low-keV VMI, PCD-CT yields significantly improved objective and subjective quality of arterial phase oncological imaging compared with EID-CT. This advantage may translate into higher diagnostic confidence and lower radiation dose protocols.
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Affiliation(s)
- D Graafen
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.
| | - L Müller
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - M Halfmann
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany; German Center for Cardiovascular Research (DZHK), Partner-Site Rhine-Main, Mainz, Germany
| | - C Düber
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - F Hahn
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Y Yang
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - T Emrich
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany; German Center for Cardiovascular Research (DZHK), Partner-Site Rhine-Main, Mainz, Germany
| | - R Kloeckner
- Diagnostic and Interventional Radiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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Welt A, Zahn MO, Wöckel A, Stickeler E, Thoma M, Nusch A, Fuxius S, Müller L, Reschke D, Chiabudini M, Hillebrand L, Kruggel L, Jänicke M, Marschner N, Thill M, Harbeck N, Decker T. 187P Routine care of early breast cancer (stage I-III) in Germany: Data of the prospective, intersectoral research platform OPAL. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.222] [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: 11/01/2022] Open
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10
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Graf HG, Rudisch BM, Ude L, Müller L, Huhn C. Picomolar detection limits for glyphosate by two-dimensional column-coupled isotachophoresis/capillary zone electrophoresis-mass spectrometry. J Sep Sci 2022; 45:3887-3899. [PMID: 35998068 DOI: 10.1002/jssc.202200519] [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: 06/28/2022] [Revised: 08/18/2022] [Accepted: 08/19/2022] [Indexed: 11/09/2022]
Abstract
Capillary electrophoresis-mass spectrometry often lacks sufficient limits of detection for trace substances in the environment due to its low loadability. To overcome this problem, we conducted a feasibility study for column-coupling isotachophoresis to capillary electrophoresis-mass spectrometry. The first dimension isotachophoresis preconcentrated the analytes. The column-coupling of both dimensions was achieved by a hybrid capillary microfluidic chip setup. Reliable analyte transfer by voltage switching was enabled by an in-chip capacitively coupled contactless conductivity detector placed around the channel of the common section between two T-shaped crossings in the chip connecting both dimensions. This eliminated the need to calculate the moment of analyte transfer. A commercial capillary electrophoresis-mass spectrometry instrument with easily installable adaptations operated the setup. Prior to coupling isotachophoresis with capillary zone electrophoresis-mass spectrometry, both dimensions were optimized individually by simulations and verified experimentally. Both dimensions were able to stack/separate all degradation products of glyphosate, the most important herbicide applied worldwide. The first dimension isotachophoresis also removed phosphate, which is a critical matrix component in many environmental samples. Enrichment and separation of glyphosate and its main degradation product aminomethylphosphonic acid by the 2D setup provided an excellent limit of detection of 150 pM (25 ng/L) for glyphosate. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Hannes Georg Graf
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | | | - Lukas Ude
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Linda Müller
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Carolin Huhn
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
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11
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Stöhr F, Klöckner R, Mähringer-Kunz A, Düber C, Müller L, Schnier M, Hahn F. Vorhersage von makrovaskulärer Infiltration beim HCC – eine Radiomics-Studie. ROFO-FORTSCHR RONTG 2022. [DOI: 10.1055/s-0042-1749933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- F Stöhr
- Universitätsmedizin Mainz, Klinik und Poliklinik für diagnostische und Interventionelle, Mainz
| | - R Klöckner
- Klinik für diagnostische und interventionelle Radiologie, Universitätsmedizin Mainz, Mainz
| | - A Mähringer-Kunz
- Klinik für diagnostische und interventionelle Radiologie, Universitätsmedizin Mainz, Mainz
| | - C Düber
- Klinik für diagnostische und interventionelle Radiologie, Universitätsmedizin Mainz, Mainz
| | - L Müller
- Klinik für diagnostische und interventionelle Radiologie, Universitätsmedizin Mainz, Mainz
| | - M Schnier
- Klinik für diagnostische und interventionelle Radiologie, Universitätsmedizin Mainz, Mainz
| | - F Hahn
- Klinik für diagnostische und interventionelle Radiologie, Universitätsmedizin Mainz, Mainz
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12
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Sommerhäuser G, Kurreck A, Stintzing S, Heinemann V, von Weikersthal LF, Dechow T, Kaiser F, Karthaus M, Schwaner I, Fuchs M, König A, Roderburg C, Hoyer I, Quante M, Kiani A, Fruehauf S, Müller L, Reinacher-Schick A, Ettrich TJ, Stahler A, Modest DP. Study protocol of the FIRE-8 (AIO-KRK/YMO-0519) trial: a prospective, randomized, open-label, multicenter phase II trial investigating the efficacy of trifluridine/tipiracil plus panitumumab versus trifluridine/tipiracil plus bevacizumab as first-line treatment in patients with metastatic colorectal cancer. BMC Cancer 2022; 22:820. [PMID: 35897060 PMCID: PMC9327141 DOI: 10.1186/s12885-022-09892-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/13/2022] [Indexed: 01/05/2023] Open
Abstract
Background Initial systemic therapy for patients with metastatic colorectal cancer (mCRC) is usually based on two- or three-drug chemotherapy regimens with fluoropyrimidine (5-fluorouracil (5-FU) or capecitabine), oxaliplatin and/or irinotecan, combined with either anti-VEGF (bevacizumab) or, for RAS wild-type (WT) tumors, anti-EGFR antibodies (panitumumab or cetuximab). Recommendations for patients who are not eligible for intensive combination therapies are limited and include fluoropyrimidine plus bevacizumab or single agent anti-EGFR antibody treatment. The use of a monochemotherapy concept of trifluridine/ tipiracil in combination with monoclonal antibodies is not approved for first-line therapy, yet. Results from the phase II TASCO trial evaluating trifluridine/ tipiracil plus bevacicumab in first-line treatment of mCRC patients and from the phase I/II APOLLON trial investigating trifluridine/ tipiracil plus panitumumab in pre-treated mCRC patients suggest favourable activity and tolerability of these new therapeutic approaches. Methods FIRE-8 (NCT05007132) is a prospective, randomized, open-label, multicenter phase II study which aims to evaluate the efficacy of first-line treatment with trifluridine/tipiracil (35 mg/m2 body surface area (BSA), orally twice daily on days 1–5 and 8–12, q28 days) plus either the anti-EGFR antibody panitumumab (6 mg/kg body weight, intravenously on day 1 and 15, q28 days) [arm A] or (as control arm) the anti-VEGF antibody bevacizumab (5 mg/kg body weight, intravenously on day 1 and 15, q28 days) [arm B] in RAS WT mCRC patients. The primary objective is to demonstrate an improved objective response rate (ORR) according to RECIST 1.1 from 30% (control arm) to 55% with panitumumab. With a power of 80% and a two-sided significance level of 0.05, 138 evaluable patients are needed. Given an estimated drop-out rate of 10%, 153 patients will be enrolled. Discussion To the best of our knowledge, this is the first phase II trial to evaluate the efficacy of trifluridine/tipiracil plus panitumumab in first-line treatment of RAS WT mCRC patients. The administration of anti-EGFR antibodies rather than anti-VEGF antibodies in combination with trifluridine/tipiracil may result in an increased initial efficacy. Trial registration EU Clinical Trials Register (EudraCT) 2019-004223-20. Registered October 22, 2019, ClinicalTrials.govNCT05007132. Registered on August 12, 2021. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-022-09892-8.
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Affiliation(s)
- G Sommerhäuser
- Department of Hematology, Oncology, and Cancer Immunology (CVK/CCM), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - A Kurreck
- Department of Hematology, Oncology, and Cancer Immunology (CVK/CCM), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - S Stintzing
- Department of Hematology, Oncology, and Cancer Immunology (CVK/CCM), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.,German Cancer Consortium (DKTK), DKFZ, Heidelberg, Germany
| | - V Heinemann
- German Cancer Consortium (DKTK), DKFZ, Heidelberg, Germany.,Department of Hematology/Oncology, LMU Klinikum, University of Munich, Comprehensive Cancer Center Munich, Munich, Germany
| | | | - T Dechow
- Oncological Practice, Ravensburg, Germany
| | - F Kaiser
- Oncological Practice, Landshut, Germany
| | - M Karthaus
- Department of Hematology and Oncology, Klinikum Neuperlach/ Klinikum Harlaching, Munich, Germany
| | - I Schwaner
- Oncological Practice Kurfuerstendamm, Berlin, Germany
| | - M Fuchs
- Department of Gastroenterology, Hepatology, and Gastrointestinal Oncology, München Klinik Bogenhausen, Munich, Germany
| | - A König
- Department of Gastroenterology and Gastrointestinal Oncology Goettingen, University Medical Center Goettingen, Goettingen, Germany
| | - C Roderburg
- Department of Gastroenterology, Hepatology, and Infectiology, University Medical Center Duesseldorf, Duesseldorf, Germany
| | - I Hoyer
- Department of Hematology, Oncology, and Cancer Immunology (CVK/CCM), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - M Quante
- Department of Gastroenterology, Hepatology, Endocrinology, and Infectiology, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - A Kiani
- Department of Medicine IV, Klinikum Bayreuth GmbH, Bayreuth, Germany
| | - S Fruehauf
- Department of Hematology, Oncology, and Palliative Care, Klinik Dr. Hancken GmbH, Stade, Germany
| | - L Müller
- Onkologie UnterEms, Leer, Germany
| | - A Reinacher-Schick
- Department of Hematology, Oncology and Palliative Care, Ruhr-University Bochum, Bochum, Germany
| | - T J Ettrich
- Department of Internal Medicine, University Hospital Ulm, Ulm, Germany
| | - A Stahler
- Department of Hematology, Oncology, and Cancer Immunology (CVK/CCM), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
| | - D P Modest
- Department of Hematology, Oncology, and Cancer Immunology (CVK/CCM), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany. .,German Cancer Consortium (DKTK), DKFZ, Heidelberg, Germany.
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Falus FA, Vizi Z, Szabó KÉ, Müller L, Reiczigel J, Balogh N, Manczur F. Establishment of a reference interval for urinary albumin-to-creatinine ratio in dogs. Vet Clin Pathol 2022; 51:585-590. [PMID: 35791959 PMCID: PMC10084387 DOI: 10.1111/vcp.13149] [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: 11/10/2021] [Revised: 03/21/2022] [Accepted: 04/18/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Albuminuria is an important marker of renal damage and can precede proteinuria; thus, it can be a useful analyte in the early diagnosis of kidney diseases. Albuminuria has also been found in dogs with hypertension, inflammatory, infectious, and neoplastic diseases. OBJECTIVES The aim of this study was to establish a reference interval (RI) for albuminuria in dogs. METHODS One hundred sixty-four clinically healthy dogs were enrolled in the study. Urinary albumin was determined by the immunoturbidimetric method, and albumin excretion was expressed as the urinary albumin-to-creatinine (UAC) ratio. The RI for UAC was established. RESULTS After exclusions, 124 dogs from 32 breeds remained. The median UAC of the study population was 3.0 mg/g (range: 0-48). The RI was defined as 0-19 mg/g (with a 90% CI for the upper limit of 13-28 mg/g). No significant difference was found between male and female dogs or between different age and body weight groups. The results of Sighthounds (n = 30) and Beagle dogs (n = 23) did not differ from the other breeds. CONCLUSION The canine RI of UAC is similar but somewhat narrower than the human RI.
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Affiliation(s)
- Fruzsina Anna Falus
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Zsuzsanna Vizi
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Korinna Éva Szabó
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
| | - Linda Müller
- Department of Obstetrics and Food Animal Medicine Clinic, University of Veterinary Medicine, Budapest, Hungary
| | - Jenő Reiczigel
- Department of Biomathematics and Informatics, University of Veterinary Medicine, Budapest, Hungary
| | | | - Ferenc Manczur
- Department of Internal Medicine, University of Veterinary Medicine, Budapest, Hungary
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Kugler M, Dellinger M, Kartnig F, Tosevska A, Müller L, Preglej T, Heinz L, Kiener H, Steiner G, Aletaha D, Karonitsch TM, Bonelli M. OP0079 SYNOVIAL FIBROBLASTS – T CELL INTERACTIONS ARE MAJOR DRIVERS OF INFLAMMATION: A CLOSER LOOK INTO THE JOINT. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundRheumatoid Arthritis (RA) is a chronic inflammatory disease, which is characterized by synovial inflammation resulting in bone and cartilage destruction. Crosstalk between activated fibroblast-like synoviocytes (FLS) and immune cells, such as CD4+ T cells, within the synovium might amplify synovial inflammation and joint destruction.ObjectivesTo define the interaction profile of activated FLS and CD4+ T cells within an inflammatory setting and to elucidate its consequence on synovial inflammation.MethodsTo screen for factors that activate FLS in RA, isolated FLS were treated with different inflammatory cytokines and transcriptomic changes were measured with RNA-seq. Fluorescence activated cell sorting (FACS) purified naïve CD4+ T-cells from the same patients were co-cultured with the cytokine pre-treated FLS. Automated fluorescence microscopy and downstream bioinformatic image analysis allowed visualization and quantification of cell-cell interactions. After co-culture T-cells were isolated and T-cell activation, proliferation and differentiation was determined by flow cytometry.ResultsTo model the in vivo situation, FLS were pre-stimulated with different pro- and anti-inflammatory cytokines. RNA-seq revealed cytokine specific activation patterns of FLS. Correspondingly, we observed distinct CD4+ T cells – FLS interaction profiles depending on the cytokine used for FLS activation. In line with distinct interaction profiles, specific patterns in CD4+ T cells activation, proliferation and differentiation of naïve T cells into CD62Lhigh CD45ROhigh memory T cells could be detected. Signatures of cytokine-stimulated FLS could be identified in transcriptomic data from synovial tissue samples.ConclusionWithin this study, we describe how cytokine induced CD4+ T cells – FLS interactions impact on T-cell proliferation, activation and differentiation.References[1]Zhang F, Wei K, Slowikowski K, Fonseka CY, Rao DA, Kelly S, et al. Defining inflammatory cell states in rheumatoid arthritis joint synovial tissues by integrating single-cell transcriptomics and mass cytometry. Nat Immunol. 2019.[2]Smolen JS, Aletaha D, Barton A, Burmester GR, Emery P, Firestein GS, et al. Rheumatoid arthritis. Nat Rev Dis Primers. 2018;4:18001.[3]Smolen JS, Aletaha D, McInnes IB. Rheumatoid arthritis. The Lancet. 2016;388(10055):2023-38.[4]Bartok B, Firestein GS. Fibroblast-like synoviocytes: key effector cells in rheumatoid arthritis. Immunol Rev. 2010;233(1):233-55.[5]Zhang F, Wei K, Slowikowski K, Fonseka CY, Rao DA, Kelly S, et al. Defining inflammatory cell states in rheumatoid arthritis joint synovial tissues by integrating single-cell transcriptomics and mass cytometry. Nat Immunol. 2019.Disclosure of InterestsNone declared.
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Müller L, Mitter S, Mannewitz M, Keilmann L, Meister S, Kolben MT, Schmoeckel E, Burges A, Trillsch F, Czogalla B, Jeschke U, Kessler M, Mahner S, Kolben T, Beyer S. Die Blutgruppenantigene SLeX, SLeA and Lewis Y als potenziell prognostische Faktoren im Endometrium- und Zervixkarzinom. Geburtshilfe Frauenheilkd 2022. [DOI: 10.1055/s-0042-1749058] [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: 12/24/2022] Open
Affiliation(s)
- L Müller
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - S Mitter
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - M Mannewitz
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - L Keilmann
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - S Meister
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - M T Kolben
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - E Schmoeckel
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum, Augsburg
| | - A Burges
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - F Trillsch
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - B Czogalla
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - U Jeschke
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum, Augsburg
| | - M Kessler
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - S Mahner
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - T Kolben
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - S Beyer
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
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Mitter S, Müller L, Mannewitz M, Keilmann L, Meister S, Kolben MT, Schmoeckel E, Burges A, Trillsch F, Czogalla B, Mahner S, Kessler M, Jeschke U, Kolben T, Beyer S. RIG-I – Expression als negativer prognostischer Faktor im Endometriumkarzinom. Geburtshilfe Frauenheilkd 2022. [DOI: 10.1055/s-0042-1749057] [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] Open
Affiliation(s)
- S Mitter
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - L Müller
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - M Mannewitz
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - L Keilmann
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - S Meister
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - M T Kolben
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - E Schmoeckel
- Pathologisches Institut, Universitätsklinikum der LMU, München
| | - A Burges
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - F Trillsch
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - B Czogalla
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - S Mahner
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - M Kessler
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - U Jeschke
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum, Augsburg
| | - T Kolben
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - S Beyer
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
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Spies CK, Unglaub F, Bruckner T, Müller L, Eysel P, Rau J. Diagnostic accuracy of wrist MRI in comparison to wrist arthroscopy regarding TFCC lesions in clinical practice. Arch Orthop Trauma Surg 2022; 142:879-885. [PMID: 35006371 DOI: 10.1007/s00402-021-04329-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/19/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The purpose of this study was to arthroscopically verify MRI diagnostic accuracy for triangular fibrocartilage complex (TFCC) lesions in a regular clinical environment. METHODS A total of 859 patients' data with both preoperative MRI of the wrist and additional wrist arthroscopy were retrospectively reviewed. Two board-certified hand surgeons and one orthopaedic surgeon executed wrist arthroscopy, whereas more than 100 radiologists examined the MRI of the wrist. The accordance of TFCC lesion classification using MRI in comparison to wrist arthroscopy and diagnostic precision of the former depending on technical details were evaluated. RESULTS Diagnostic accuracy of MRI for TFCC lesions is poor in comparison to wrist arthroscopy as the reference standard. Technical specifications for MRI of the wrist are heterogeneous among the radiologists. These parameters have not improved accuracy of TFCC evaluation at large. CONCLUSION The accuracy of MRI in a regular clinical environment still remains inferior to wrist arthroscopy for detection of TFCC lesions. Development of a standard MRI protocol may be implemented on a regular basis and application of the Palmer classification for TFCC lesion should be sought.
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Affiliation(s)
- C K Spies
- Hand Surgery, Spital Langenthal, Spital Region Oberaargau SRO AG, 4900, Langenthal, Switzerland.
| | - F Unglaub
- Hand Surgery, Vulpius Klinik, Vulpiusstraße 29, 74906, Bad Rappenau, Germany
- Medical Faculty Mannheim, Ruprecht-Karls University Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
| | - T Bruckner
- Department of Medical Biometry and Informatics, University Heidelberg, Im Neuenheimer Feld 305, 69120, Heidelberg, Germany
| | - L Müller
- Department of Orthopaedic Surgery and Traumatology, University Hospital Cologne, Kerpener Str. 62, 50937, Köln, Germany
| | - P Eysel
- Department of Orthopaedic Surgery and Traumatology, University Hospital Cologne, Joseph-Stelzmann-Str. 24, 50931, Köln, Germany
| | - J Rau
- Hand Surgery, Vulpius Klinik, Vulpiusstraße 29, 74906, Bad Rappenau, Germany
- Medical Faculty Mannheim, Ruprecht-Karls University Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany
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Mackei M, Talabér R, Müller L, Sterczer Á, Fébel H, Neogrády Z, Mátis G. Altered Intestinal Production of Volatile Fatty Acids in Dogs Triggered by Lactulose and Psyllium Treatment. Vet Sci 2022; 9:vetsci9050206. [PMID: 35622734 PMCID: PMC9145803 DOI: 10.3390/vetsci9050206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/08/2022] [Accepted: 04/19/2022] [Indexed: 12/04/2022] Open
Abstract
The intestinal microbiome of dogs can be influenced by a number of factors such as non-starch polysaccharides as well as some non-digestible oligo- and disaccharides. These molecules are only decomposed by intestinal anaerobic microbial fermentation, resulting in the formation of volatile fatty acids (VFAs), which play a central role in maintaining the balance of the intestinal flora and affecting the health status of the host organism. In the present study, the effects of lactulose and psyllium husk (Plantago ovata) were investigated regarding their influence on concentrations of various VFAs produced by the canine intestinal microbiome. Thirty dogs were kept on a standard diet for 15 days, during which time half of the animals received oral lactulose once a day, while the other group was given a psyllium-supplemented diet (in 0.67 and in 0.2 g/kg body weight concentrations, respectively). On days 0, 5, 10 and 15 of the experiment, feces were sampled from the rectum, and the concentration of each VFA was determined by GC-MS (gas chromatography−mass spectrometry). Lactulose administration caused a significant increase in the total VFA concentration of the feces on days 10 and 15 of the experiment (p = 0.035 and p < 0.001, respectively); however, in the case of psyllium supplementation, the concentration of VFAs showed a significant elevation only on day 15 (p = 0.003). Concentrations of acetate and propionate increased significantly on days 5, 10 and 15 after lactulose treatment (p = 0.044, p = 0.048 and p < 0.001, respectively). Following psyllium administration, intestinal acetate, propionate and n-butyrate production were stimulated on day 15, as indicated by the fecal VFA levels (p = 0.002, p = 0.035 and p = 0.02, respectively). It can be concluded that both lactulose and psyllium are suitable for enhancing the synthesis of VFAs in the intestines of dogs. Increased acetate and propionate concentrations were observed following the administration of both supplements; however, elevated n-butyrate production was found only after psyllium treatment, suggesting that the applied prebiotics may exert slightly different effects in the hindgut of dogs. These findings can be also of great importance regarding the treatment and management of patients suffering from intestinal disorders as well as hepatic encephalopathy due to portosystemic shunt.
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Affiliation(s)
- Máté Mackei
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine, István Street 2, H-1078 Budapest, Hungary; (R.T.); (Z.N.); (G.M.)
- Correspondence:
| | - Rebeka Talabér
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine, István Street 2, H-1078 Budapest, Hungary; (R.T.); (Z.N.); (G.M.)
| | - Linda Müller
- Department of Obstetrics and Food Animal Medicine Clinic, University of Veterinary Medicine, István Street 2, H-1078 Budapest, Hungary;
| | - Ágnes Sterczer
- Department and Clinic of Internal Medicine, University of Veterinary Medicine, István Street 2, H-1078 Budapest, Hungary;
| | - Hedvig Fébel
- Nutrition Physiology Research Group, Institute of Physiology and Nutrition, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, Gesztenyés Street 1, H-2053 Herceghalom, Hungary;
| | - Zsuzsanna Neogrády
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine, István Street 2, H-1078 Budapest, Hungary; (R.T.); (Z.N.); (G.M.)
| | - Gábor Mátis
- Division of Biochemistry, Department of Physiology and Biochemistry, University of Veterinary Medicine, István Street 2, H-1078 Budapest, Hungary; (R.T.); (Z.N.); (G.M.)
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Graf HG, Biebl SM, Müller L, Breitenstein C, Huhn C. Capillary electrophoresis applied for the determination of acidity constants and limiting electrophoretic mobilities of ionizable herbicides including glyphosate and its metabolites and for their simultaneous separation. J Sep Sci 2022; 45:1128-1139. [PMID: 34984811 DOI: 10.1002/jssc.202100952] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 12/02/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 11/11/2022]
Abstract
Thermodynamic acidity constants and limiting ionic mobilities were determined for polyprotic non-chromophore analytes using capillary electrophoresis with capacitively coupled contactless conductivity detection. It was not necessary to work with buffers of identical ionic strength as ionic strength effects on effective electrophoretic mobilities were corrected by modeling during data evaluation (software AnglerFish). The mobility data from capillary electrophoresis coupled to conductivity detection were determined in the pH range from 1.25 to 12.02 with a high resolution (36 pH steps). With this strategy, thermodynamic acidity constants and limiting ionic mobilities for various acidic herbicides were determined, sometimes for the first time. The model analytes included glyphosate, its metabolites, and its acetylated derivates (aminomethyl phosphonic acid, glyoxylic acid, sarcosine, glycine, N-acetyl glyphosate, N-acetyl aminomethyl phosphonic acid, hydroxymethyl phosphonic acid). The obtained data were used in simulations to optimize separations by capillary electrophoresis. Simulations correlated very well to experimental results. With the new method, the separation of glyphosate from interfering components like phosphate in beer samples was possible.
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Affiliation(s)
- Hannes Georg Graf
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Sonja Maria Biebl
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Linda Müller
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Christina Breitenstein
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - Carolin Huhn
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Tübingen, Germany
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Stock S, Al Wheibi S, Topal A, Gross TS, Müller L, Owais T, Kloth B, Girdauskas E. Implementation of Standardized ERAS Protocol in Patients Undergoing Minimally Invasive Heart Surgery. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742797] [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: 10/19/2022]
Affiliation(s)
- S. Stock
- Department of Cardiac and Thoracic Surgery, University Hospital Augsburg, Augsburg, Deutschland
| | - S. Al Wheibi
- Department of Cardiac and Thoracic Surgery, University Hospital Augsburg, Augsburg, Deutschland
| | - A. Topal
- Department of Cardiac and Thoracic Surgery, University Hospital Augsburg, Augsburg, Deutschland
| | - T.M. Sequeira Gross
- Department of Cardiac and Thoracic Surgery, University Hospital Augsburg, Augsburg, Deutschland
| | - L. Müller
- Department of Cardiac and Thoracic Surgery, University Hospital Augsburg, Augsburg, Deutschland
| | - T. Owais
- Department of Cardiac and Thoracic Surgery, University Hospital Augsburg, Augsburg, Deutschland
| | - B. Kloth
- Department of Cardiac and Thoracic Surgery, University Hospital Augsburg, Augsburg, Deutschland
| | - E. Girdauskas
- Department of Cardiac and Thoracic Surgery, University Hospital Augsburg, Augsburg, Deutschland
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Holfeld J, Gollmann-Tepeköylü C, Graber M, Nägele F, Oezpeker CU, Stastny L, Hoefer D, Müller L, Grimm M, Bonaros N. The Impact of Era and Technical Innovation on Outcome and Operative Times in Minimally Invasive Mitral Surgery. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742912] [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: 10/19/2022]
Affiliation(s)
| | | | | | | | | | - L. Stastny
- University of Innsbruck, Innsbruck, Austria
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22
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Müller V, Banys-Paluchowski M, Friedl TWP, Fasching PA, Schneeweiss A, Hartkopf A, Wallwiener D, Rack B, Meier-Stiegen F, Huober J, Rübner M, Hoffmann O, Müller L, Janni W, Wimberger P, Jäger B, Pantel K, Riethdorf S, Harbeck N, Fehm T. Prognostic relevance of the HER2 status of circulating tumor cells in metastatic breast cancer patients screened for participation in the DETECT study program. ESMO Open 2021; 6:100299. [PMID: 34839105 PMCID: PMC8637493 DOI: 10.1016/j.esmoop.2021.100299] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/25/2021] [Accepted: 10/11/2021] [Indexed: 10/31/2022] Open
Abstract
BACKGROUND Circulating tumor cells (CTCs) have been reported to predict clinical outcome in metastatic breast cancer (MBC). Biology of CTCs may differ from that of the primary tumor and HER2-positive CTCs are found in some patients with HER2-negative tumors. PATIENTS AND METHODS Patients with HER2-negative MBC were screened for participation in DETECT III and IV trials before the initiation of a new line of therapy. Blood samples were analyzed using CELLSEARCH. CTCs were labeled with an anti-HER2 antibody and classified according to staining intensity (negative, weak, moderate, or strong staining). RESULTS Screening blood samples were analyzed in 1933 patients with HER2-negative MBC. As many as 1217 out of the 1933 screened patients (63.0%) had ≥1 CTC per 7.5 ml blood; ≥5 CTCs were detected in 735 patients (38.0%; range 1-35 078 CTCs, median 8 CTCs). HER2 status of CTCs was assessed in 1159 CTC-positive patients; ≥1 CTC with strong HER2 staining was found in 174 (15.0%) patients. The proportion of CTCs with strong HER2 staining among all CTCs of an individual patient ranged between 0.06% and 100% (mean 15.8%). Patients with estrogen receptor (ER)- and progesterone receptor (PR)-positive tumors were more likely to harbor ≥1 CTC with strong HER2 staining. CTC status was significantly associated with overall survival (OS). Detection of ≥1 CTC with strong HER2 staining was associated with shorter OS [9.7 (7.1-12.3) versus 16.5 (14.9-18.1) months in patients with CTCs with negative-to-moderate HER2 staining only, P = 0.013]. In multivariate analysis, age, ER status, PR status, Eastern Cooperative Oncology Group performance status, therapy line, and CTC status independently predicted OS. CONCLUSION CTC detection in patients with HER2-negative disease is a strong prognostic factor. Presence of ≥1 CTC with strong HER2 staining was associated with shorter OS, supporting a biological role of HER2 expression on CTCs.
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Affiliation(s)
- V Müller
- Department of Gynecology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany.
| | - M Banys-Paluchowski
- Gynecology and Obstetrics Department, University of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany; Medical Faculty, Heinrich-Heine-University of Düsseldorf, Düsseldorf, Germany
| | - T W P Friedl
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - P A Fasching
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - A Schneeweiss
- Division Gynecologic Oncology, National Center for Tumor Diseases (NCT), Heidelberg University Hospital and German Cancer Research Center, Heidelberg, Germany
| | - A Hartkopf
- Department of Gynecology and Obstetrics, University Hospital Tübingen, Tübingen, Germany
| | - D Wallwiener
- Department of Gynecology and Obstetrics, University Hospital Tübingen, Tübingen, Germany
| | - B Rack
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - F Meier-Stiegen
- Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Düsseldorf, Germany
| | - J Huober
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - M Rübner
- Department of Gynecology and Obstetrics, University Hospital Erlangen, Comprehensive Cancer Center Erlangen-EMN, Friedrich-Alexander University Erlangen-Nuremberg, Erlangen, Germany
| | - O Hoffmann
- Department of Gynecology and Obstetrics, University Hospital Essen, Essen, Germany
| | - L Müller
- OnkologieUnterEms, Leer, Germany
| | - W Janni
- Department of Gynecology and Obstetrics, University Hospital Ulm, Ulm, Germany
| | - P Wimberger
- Department of Gynecology and Obstetrics, University Hospital Carl Gustav Carus Dresden, TU Dresden, Germany; National Center for Tumor Diseases (NCT), Dresden, Germany
| | - B Jäger
- Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Düsseldorf, Germany
| | - K Pantel
- Institute of Tumor Biology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - S Riethdorf
- Institute of Tumor Biology, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - N Harbeck
- Breast Center, Department of Gynecology and Obstetrics and CCC Munich, LMU University Hospital, Munich, Germany
| | - T Fehm
- Department of Gynecology and Obstetrics, University Hospital Düsseldorf, Düsseldorf, Germany
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Peifer R, Müller L, Hoof S, Beckmann F, Cula B, Limberg C. Mimicking of the histidine brace structural motif in molecular copper(I) compounds. Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202100145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Peifer
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - L. Müller
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - S. Hoof
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - F. Beckmann
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - B. Cula
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - C. Limberg
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
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24
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Mair M, Tomasich E, Heller G, Müller L, Wöhrer A, Kiesel B, Widhalm G, Dieckmann K, Hainfellner J, Preusser M, Berghoff A. 343MO Clinical features and DNA methylation patterns in long- and short-term survivors of WHO grade II-III glioma. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.007] [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] Open
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25
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Vogel A, Behringer D, Bröckling S, Chater J, Derigs HG, Fietz T, Götze T, Hartmann F, Lutz M, Müller L, Moosmann N, Moulin JC, Potenberg J, Saborowski A, Späth-Schwalbe E, Schuler M, Pauligk C, Westphalen C, Zäpf B, Al-Batran SE. 1871TiP PLATON – “Platform for Analyzing Targetable Tumor Mutations”: A pilot study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.758] [Citation(s) in RCA: 1] [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: 10/20/2022] Open
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26
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Loibl S, Schmidt M, Lübbe K, Decker T, Thill M, Bauer L, Müller V, Link T, Furlanetto J, Kümmel S, Mundhenke C, Hoffmann O, Zahn MO, Müller L, Denkert C, van Mackelenbergh M, Fasching P, Burchardi N, Nekljudova V. LBA19 A multicenter, randomized, double-blind, phase II study to evaluate the tolerability of an induction dose escalation of everolimus in patients with metastatic breast cancer (mBC) (DESIREE). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2092] [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] Open
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27
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Darr C, Zschäbitz S, Ivanyi P, Wirth M, Staib P, Schostak M, Müller L, Metz M, Bergmann L, Steiner T, Lorch A, Schütt P, Rafiyan MR, Hellmis E, Hinke A, Mänz M, Meiler J, Kretz T, Flörcken A, Grünwald V. 679P Final results on efficacy and patient reported outcomes (PRO) of a randomized phase II trial investigating nivolumab switch-maintenance after TKI induction in metastatic clear cell renal cell carcinoma (mRCC) patients (NIVOSWITCH). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.075] [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] Open
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28
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Smola A, Samadzadeh S, Müller L, Adams O, Homey B, Albrecht P, Meller S. Omalizumab prevents anaphylactoid reactions to mRNA COVID-19 vaccine. J Eur Acad Dermatol Venereol 2021; 35:e743-e745. [PMID: 34310766 PMCID: PMC8447380 DOI: 10.1111/jdv.17549] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/01/2021] [Accepted: 07/21/2021] [Indexed: 01/12/2023]
Affiliation(s)
- A Smola
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - S Samadzadeh
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - L Müller
- Institute of Virology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - O Adams
- Institute of Virology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - B Homey
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - P Albrecht
- Department of Neurology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - S Meller
- Department of Dermatology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
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Müller L, Alm J. Feasibility and Potential Significance of Prophylactic Ablation of the Major Ascending Tributaries in Endovenous Laser Ablation (EVLA) of the Great Saphenous Vein: A Case Series. J Vasc Surg Venous Lymphat Disord 2021. [DOI: 10.1016/j.jvsv.2021.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hoefer D, Ruttmann-Ulmer E, Bonaros N, Hangler H, Grimm M, Müller L. Redo Surgery for Mitral Valve Disease: Is It Really Dangerous? Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725686] [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: 10/21/2022]
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31
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Pausch J, Gross TMS, Müller L, von Stumm M, Kloth B, Sinning C, Reichenspurner H, Girdauskas E. Improved Long-Term Outcome after Standardized Subvalvular Mitral Valve Repair for Type IIIB Functional Mitral Regurgitation. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725684] [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: 10/21/2022]
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Hoefer D, Bonaros N, Holfeld J, Grimm M, Müller L. Functional Prolapse in Barlow's Syndrome: Endoscopic Mitral Valve Repair. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725639] [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: 10/21/2022]
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33
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Girdauskas E, Kempfert J, Kuntze T, Holubec T, Krane M, Borger M, Eden M, Bramlage P, Pausch J, Gross TMS, Müller L, Reichenspurner H. Standardized Subannular Repair for Treatment of Secondary Mitral Regurgitation: Initial Results from the Reform-MR Registry. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725719] [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: 10/21/2022]
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Zibunas C, Kätelhön A, Meys R, Müller L, Bardow A. Konsequenzen einer CO
2
‐Bepreisung für die chemische Industrie: Erkenntnisse aus einem Bottom‐up‐Modell. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- C. Zibunas
- RWTH Aachen University Lehrstuhl für Technische Thermodynamik Schinkelstr. 8 52062 Aachen Deutschland
| | - A. Kätelhön
- RWTH Aachen University Lehrstuhl für Technische Thermodynamik Schinkelstr. 8 52062 Aachen Deutschland
| | - R. Meys
- RWTH Aachen University Lehrstuhl für Technische Thermodynamik Schinkelstr. 8 52062 Aachen Deutschland
| | - L. Müller
- RWTH Aachen University Lehrstuhl für Technische Thermodynamik Schinkelstr. 8 52062 Aachen Deutschland
| | - A. Bardow
- RWTH Aachen University Lehrstuhl für Technische Thermodynamik Schinkelstr. 8 52062 Aachen Deutschland
- Forschungszentrum Jülich GmbH Institut für Energie- und Klimaforschung (IEK-10) Wilhelm-Johnen-Straße 52425 Jülich Deutschland
- ETH Zürich Energy & Process Systems Engineering 8092 Zürich Schweiz
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35
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Meys R, Müller L, Kätelhön A, Suh S, Bardow A. Achieving zero‐carbon emission chemicals and plastics with limited renewable resources. CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- R. Meys
- RWTH Aachen Institute for Technical Thermodynamics Aachen Germany
| | - L. Müller
- RWTH Aachen Institute for Technical Thermodynamics Aachen Germany
| | - A. Kätelhön
- RWTH Aachen Institute for Technical Thermodynamics Aachen Germany
| | - S. Suh
- University of California Bren School of Environmental Science & Management Santa Barbara USA
| | - André Bardow
- RWTH Aachen Institute for Technical Thermodynamics Aachen Germany
- Forschungszentrum Jülich Institute for Energy and Climate Research (IEK-10) Jülich Germany
- ETH Zürich Energy & Process Systems Engineering Zürich Switzerland
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Uhlig J, Potenberg J, Semsek D, Stübs P, Fichter C, Köhler A, Müller L, Reiser M, Siebenbach H, Göhler T, Jacobasch L, Kächele V, Timm B, Potthoff K, Marschner N. 457P 1st-line panitumumab plus FOLFIRI or FOLFOX for patients with RAS wildtype metastatic colorectal cancer in Germany: Interim results of the non-interventional study VALIDATE. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.568] [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] Open
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37
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Pausch J, Sequeira Gross TM, Müller L, Kloth B, Sinning C, Reichenspurner H, Girdauskas E. Subannular Repair for Functional Mitral Regurgitation Type IIIb in Patients with Ischemic versus Dilated Cardiomyopathy. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705338] [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: 10/24/2022]
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38
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Sequeira Gross TM, Pausch J, Müller L, von Stumm M, Sinn M, Lund G, Reichenspurner H, Girdauskas E. Impact of Myocardial Fibrosis on the Left Ventricular Reremodeling after Subannular Repair for Type-IIIb Functional Mitral Regurgitation. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705339] [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: 10/24/2022]
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Heinrich K, Heinemann V, Müller L, Büchner-Steudel P, Ettrich T, Stintzing S, Schulz C. Multicenter phase I/II feasibility study of adjuvant treatment with S-1 in patients after R0-resection of adenocarcinoma of the stomach and esophagogastric junction (GMBH-STO-0114). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz247.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Grünwald V, Grüllich C, Ivanyi P, Wirth M, Staib P, Schostak M, Dargatz P, Müller L, Metz M, Bergmann L, Welslau M, Schütt P, Rafiyan MR, Hellmis E, Hinke A, Meiler J, Kretz T, Loidl W, Flörcken A, Steiner T. A phase II trial of TKI induction followed by a randomized comparison between nivolumab or TKI continuation in renal cell carcinoma (NIVOSWITCH). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz249.055] [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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Langerbeins P, Bahlo J, Rhein C, Gerwin H, Cramer P, Fürstenau M, Al-Sawaf O, von Tresckow J, Fink A, Kreuzer K, Vehling-Kaiser U, Tausch E, Müller L, Eckart M, Schlag R, Freier W, Gaska T, Balser C, Reiser M, Stauch M, Wendtner C, Fischer K, Stilgenbauer S, Eichhorst B, Hallek M. IBRUTINIB VERSUS PLACEBO IN PATIENTS WITH ASYMPTOMATIC, TREATMENT-NAÏVE EARLY STAGE CLL: PRIMARY ENDPOINT RESULTS OF THE PHASE 3 DOUBLE-BLIND RANDOMIZED CLL12 TRIAL. Hematol Oncol 2019. [DOI: 10.1002/hon.7_2629] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- P. Langerbeins
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - J. Bahlo
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - C. Rhein
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - H. Gerwin
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - P. Cramer
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - M. Fürstenau
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - O. Al-Sawaf
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - J. von Tresckow
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - A.M. Fink
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - K. Kreuzer
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | | | - E. Tausch
- Internal Medicine III; University Hospital; Ulm Germany
| | - L. Müller
- Hämatologie und Onkologie; Studienzentrum UnterEms; Leer Germany
| | - M. Eckart
- Hämatologie und Onkologie; Onkologische Schwerpunktpraxis; Erlangen Germany
| | - R. Schlag
- Hämatologie und Onkologie; Gemeinschaftspraxis; Würzburg Germany
| | - W. Freier
- Hämatologie und Onkologie; Medicinum; Hildesheim Germany
| | - T. Gaska
- Klinik für Hämatologie und Onkologie; Brüderkrankenhaus St. Josef; Paderborn Germany
| | - C. Balser
- Hämatologie und Onkologie; Internistische Praxis; Marburg Germany
| | - M. Reiser
- PIOH; Praxis Internistischer Onkologie und Hämatologie; Köln Germany
| | - M. Stauch
- Hämatologie; Onkologie, Gerinnung; Ambulantes Zentrum Kronach Germany
| | - C. Wendtner
- Department I of Internal Medicine, Munich Clinic Schwabing; Academic Teaching Hospital of University of Munich; Munich Germany
| | - K. Fischer
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - S. Stilgenbauer
- Internal Medicine I; University of Saarland; Homburg Germany
| | - B. Eichhorst
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
| | - M. Hallek
- Department I of Internal Medicine and Center of Integrated Oncology Cologne-Bonn; University Hospital; Cologne Germany
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Balogh O, Müller L, Boos A, Kowalewski MP, Reichler IM. Expression of insulin-like growth factor 1 and its receptor in preovulatory follicles and in the corpus luteum in the bitch. Gen Comp Endocrinol 2018; 269:68-74. [PMID: 30125572 DOI: 10.1016/j.ygcen.2018.08.016] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 08/08/2018] [Accepted: 08/16/2018] [Indexed: 10/28/2022]
Abstract
In the bitch, ovarian follicular and corpus luteum (CL) development and function are regulated by gonadotropins as well as local factors, the role of which is especially important during the early CL phase of relative gonadotrophic independence. We assumed that insulin-like growth factor 1 (IGF1) has a paracrine/autocrine regulatory role in ovarian follicular and luteal function in the dog. To address our hypothesis, we studied gene and protein expression of IGF1 and its receptor (IGF1R) in preovulatory follicles and in the CL of pregnant and non-pregnant dogs, and following antigestagen (aglepristone, progesterone receptor blocker) treatment in mid-gestation. Ovaries in the follicular phase were collected from five bitches. CL were collected on pregnancy Days 8-12 (pre-implantation), 18-25 (post-implantation), 35-40 (mid-gestation), at prepartum luteolysis, and 24 h and 72 h after aglepristone treatment in mid-gestation (n = 3-5 per group). From non-pregnant bitches, CL were collected on Days 5, 15, 25, 35, 45, 65 after ovulation (n = 4-5 per group). Semi-quantitative real-time (TaqMan) PCR and immunohistochemistry were applied. IGF1 immunostaining in preovulatory follicles seemed stronger in theca interna than granulosa cells. IGF1R signals appeared more intense in granulosa cells at the apical part of mural folds. In pregnant dogs, luteal IGF1 mRNA expression decreased significantly from pre-implantation to prepartum luteolysis, while IGF1R expression increased at prepartum luteolysis. Aglepristone treatment in mid-gestation had no effect on IGF1 and IGF1R mRNA levels. In non-pregnant bitches, highest IGF1 mRNA concentrations were found in the early CL and decreased by Days 45 and 65, while IGF1R expression did not change. In the CL of pregnant bitches, signals for IGF1 and IGF1R in luteal cells were strongest at pre- and post-implantation and weakest at prepartum luteolysis. IGF1 and IGF1R immunostaining was also detected in macrophages and in blood vessels. In conclusion, IGF1 may have a paracrine or autocrine role in granulosa and theca interna cells in preovulatory follicles. As IGF1 was highest represented in early luteal stages in pregnant and non-pregnant bitches, this may support a role for IGF1 in steroid synthesis, angiogenesis and cell proliferation as well as in immune function in the early canine CL. The unaffected mRNA levels after aglepristone treatment may support that IGF1 is not directly regulated by local progesterone in an auto- or paracrine manner.
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Affiliation(s)
- Orsolya Balogh
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland.
| | - Linda Müller
- Department and Clinic of Reproduction, University of Veterinary Medicine, Istvan Street 2, 1078 Budapest, Hungary
| | - Alois Boos
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland
| | - Mariusz P Kowalewski
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland
| | - Iris M Reichler
- Clinic of Reproductive Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland
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Bermúdez Martínez MA, Müller L. Intrapartum detection of Group B Streptococci (GBS) by point of care (POCT) real time PCR testing. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1671473] [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)
- MA Bermúdez Martínez
- Christophorus Kliniken, Department of Gynecology and Obstetrics, Coesfeld, Deutschland
| | - L Müller
- Christophorus Kliniken, Institute for Laboratory Medicine, Microbiology and Hygiene, Coesfeld, Deutschland
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Welslau M, Zaiss M, Söling U, Untch M, Müller L, Lüftner D, Meiler J, Welt A, Sahlmann J, Houet L, Runkel E, Marschner N. Palbociclib in combination with letrozole as first or later line therapy for patients with locally advanced, inoperable or metastatic HR+/HER2- breast cancer in Germany: Interim results of the INGE-B phase II study. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy272.331] [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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Seufferlein T, Lausser L, Stein A, Prager G, Kasper S, Niedermeier M, Müller L, Kubicka S, König AO, Büchner-Steudel P, Wille K, Perkhofer L, Hann A, Berger A, Arnold D, Kestler H, Ettrich T. A novel biomarker combination and its association with resistance to chemotherapy combinations with bevacizumab: First results of the PERMAD trial. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy281.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
SummaryA modification of the caseinolytic assay for plasminogen is described. This assay system is characterized by the following features :1. Urokinase is used as activator achieving a complete activation of the plasminogen whereas with streptokinase caseinolytically inactive plasminogen-activator complexes are formed.2. All incubation times are reduced to the minimum which is still compatible with accuracy.3. Results are expressed in percent of a standard of ten normal plasmas.4. In this two-stage assay-system (activation of plasminogen to plasmin, digestion of casein by plasmin) both stages proceed simultaneously in the same system, thus the plasmin formed is stabilized “in statu nascendi” by the casein.5. Several conditions (stability of plasminogen in frozen plasma, use of anticoagulants, reproducibility) are defined.
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Bichra M, Meinecke T, Fesser P, Müller L, Hoffmann M, Sinzinger S. Freeform characterization based on nanostructured diffraction gratings. Appl Opt 2018; 57:3808-3816. [PMID: 29791347 DOI: 10.1364/ao.57.003808] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
The in-line characterization of freeform optical elements during the production cycle is challenging. Recently, we presented a compact sensor setup for the characterization of the wavefront generated by freeform optical elements in transmission. The sensor is based on a common-path interferometer consisting of diffractive components and Fourier filtering being adapted to the subsequent numerical post processing. Additionally, it offers several degrees of freedom for enlarging the measurement range of the wavefront gradients. In this contribution, we propose an advanced sensor setup for the measurement of wavefronts generated by freeform elements in reflection. The main advantage is the uni-axial illumination of the test object and the measuring system without the need for conventional beamsplitters. Due to this uni-axial arrangement, the main challenge is to avoid the effect of stray light and back reflections on the measurement signal-to-noise ratio. This is achieved by implementing a highly absorbing amplitude grating based on nanostructured silicon. We demonstrate the experimentally realized measurement system and compare its performance to a commercial Shack-Hartmann sensor.
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Müller L, Hartmann G, Schleitzer S, Berntsen MH, Walther M, Rysov R, Roseker W, Scholz F, Seltmann J, Glaser L, Viefhaus J, Mertens K, Bagschik K, Frömter R, De Fanis A, Shevchuk I, Medjanik K, Öhrwall G, Oepen HP, Martins M, Meyer M, Grübel G. Note: Soft X-ray transmission polarizer based on ferromagnetic thin films. Rev Sci Instrum 2018; 89:036103. [PMID: 29604789 DOI: 10.1063/1.5018396] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A transmission polarizer for producing elliptically polarized soft X-ray radiation from linearly polarized light is presented. The setup is intended for use at synchrotron and free-electron laser beamlines that do not directly offer circularly polarized light for, e.g., X-ray magnetic circular dichroism (XMCD) measurements or holographic imaging. Here, we investigate the degree of ellipticity upon transmission of linearly polarized radiation through a cobalt thin film. The experiment was performed at a photon energy resonant to the Co L3-edge, i.e., 778 eV, and the polarization of the transmitted radiation was determined using a polarization analyzer that measures the directional dependence of photo electrons emitted from a gas target. Elliptically polarized radiation can be created at any absorption edge showing the XMCD effect by using the respective magnetic element.
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Affiliation(s)
- L Müller
- Deutsches Elektronen-Synchrotron DESY, FS-CXS, 22607 Hamburg, Germany
| | - G Hartmann
- Deutsches Elektronen-Synchrotron DESY, FS-PE, 22607 Hamburg, Germany
| | - S Schleitzer
- Deutsches Elektronen-Synchrotron DESY, FS-CXS, 22607 Hamburg, Germany
| | - M H Berntsen
- SCI Materials Physics, KTH Royal Institute of Technology, Electrum 229, 16440 Kista, Sweden
| | - M Walther
- Deutsches Elektronen-Synchrotron DESY, FS-CXS, 22607 Hamburg, Germany
| | - R Rysov
- Deutsches Elektronen-Synchrotron DESY, FS-CXS, 22607 Hamburg, Germany
| | - W Roseker
- Deutsches Elektronen-Synchrotron DESY, FS-CXS, 22607 Hamburg, Germany
| | - F Scholz
- Deutsches Elektronen-Synchrotron DESY, FS-PE, 22607 Hamburg, Germany
| | - J Seltmann
- Deutsches Elektronen-Synchrotron DESY, FS-PE, 22607 Hamburg, Germany
| | - L Glaser
- Deutsches Elektronen-Synchrotron DESY, FS-PE, 22607 Hamburg, Germany
| | - J Viefhaus
- Deutsches Elektronen-Synchrotron DESY, FS-PE, 22607 Hamburg, Germany
| | - K Mertens
- Department of Physics, Universität Hamburg, 22761 Hamburg, Germany
| | - K Bagschik
- Universität Hamburg, Center for Hybrid Nanostructures, 22761 Hamburg, Germany
| | - R Frömter
- Universität Hamburg, Center for Hybrid Nanostructures, 22761 Hamburg, Germany
| | - A De Fanis
- European XFEL, 22869 Schenefeld, Germany
| | - I Shevchuk
- European XFEL, 22869 Schenefeld, Germany
| | - K Medjanik
- MAX IV Laboratory, Lund University, 22100 Lund, Sweden
| | - G Öhrwall
- MAX IV Laboratory, Lund University, 22100 Lund, Sweden
| | - H P Oepen
- Universität Hamburg, Center for Hybrid Nanostructures, 22761 Hamburg, Germany
| | - M Martins
- Department of Physics, Universität Hamburg, 22761 Hamburg, Germany
| | - M Meyer
- European XFEL, 22869 Schenefeld, Germany
| | - G Grübel
- Deutsches Elektronen-Synchrotron DESY, FS-CXS, 22607 Hamburg, Germany
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Schmitt P, Wedrich K, Müller L, Mehner H, Hoffmann M. Design, fabrication and characterisation of a microfluidic time-temperature indicator. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/922/1/012004] [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: 11/11/2022]
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Goebell P, Müller L, Staehler M, Müller M, Frank M, Kruggel L, Jänicke M, Marschner N. Prognostic factors for overall survival of patients with advanced renal cell carcinoma – data from the German prospective RCC-Registry. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx371.056] [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: 11/13/2022] Open
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