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Ahmed S, LePage K, Benc R, Erez G, Litvin A, Werbitt A, Chartier G, Berlin C, Loiselle CG. Lessons Learned from the Implementation of a Person-Centred Digital Health Platform in Cancer Care. Curr Oncol 2022; 29:7171-7180. [PMID: 36290841 PMCID: PMC9600520 DOI: 10.3390/curroncol29100564] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/16/2022] [Accepted: 09/22/2022] [Indexed: 01/13/2023] Open
Abstract
The SARS-CoV-2 (COVID-19) pandemic has accelerated the development and use of digital health platforms to support individuals with health-related challenges. This is even more frequent in the field of cancer care as the global burden of the disease continues to increase every year. However, optimal implementation of these platforms into the clinical setting requires careful planning and collaboration. An implementation project was launched between the Centre intégré universitaire de santé et de services sociaux (CIUSSS) du Centre-Ouest-de-I'Île-de-Montreal and BELONG-Beating Cancer Together-a person-centred cancer navigation and support digital health platform. The goal of the project was to implement content and features specific to the CIUSSS, to be made available exclusively for individuals with cancer (and their caregivers) treated at the institution. Guided by Structural Model of Interprofessional Collaboration, we report on implementation processes involving diverse stakeholders including clinicians, hospital administrators, researchers and local community/patient representatives. Lessons learned include earlier identification of shared goals and clear expectations, more consistent reliance on virtual means to communicate among all involved, and patient/caregiver involvement in each step to ensure informed and shared decision making.
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Affiliation(s)
- Saima Ahmed
- Division of Experimental Medicine, Faculty of Medicine and Health Sciences McGill University, Montreal, QC H4A 3J1, Canada
- Centre Intégré Universitaire de Santé et de Services Sociaux (CIUSSS) du Centre-Ouest-de l’Île-de Montréal, Montreal, QC H3T 1E2, Canada
| | - Karine LePage
- Centre Intégré Universitaire de Santé et de Services Sociaux (CIUSSS) du Centre-Ouest-de l’Île-de Montréal, Montreal, QC H3T 1E2, Canada
| | - Renata Benc
- Centre Intégré Universitaire de Santé et de Services Sociaux (CIUSSS) du Centre-Ouest-de l’Île-de Montréal, Montreal, QC H3T 1E2, Canada
| | - Guy Erez
- Belong.life Inc., New York, NY 10001, USA
| | | | | | - Gabrielle Chartier
- Centre Intégré Universitaire de Santé et de Services Sociaux (CIUSSS) du Centre-Ouest-de l’Île-de Montréal, Montreal, QC H3T 1E2, Canada
| | - Carly Berlin
- Centre Intégré Universitaire de Santé et de Services Sociaux (CIUSSS) du Centre-Ouest-de l’Île-de Montréal, Montreal, QC H3T 1E2, Canada
| | - Carmen G. Loiselle
- Division of Experimental Medicine, Faculty of Medicine and Health Sciences McGill University, Montreal, QC H4A 3J1, Canada
- Centre Intégré Universitaire de Santé et de Services Sociaux (CIUSSS) du Centre-Ouest-de l’Île-de Montréal, Montreal, QC H3T 1E2, Canada
- Department of Oncology, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H4A 3T2, Canada
- Ingram School of Nursing, Faculty of Medicine and Health Sciences, McGill University, Montreal, QC H3A 2M7, Canada
- Correspondence:
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Berlin C, Platz U, Quante M, Thomsen B, Köszegvary M, Halm H. [Erratum to: Low intraoperative radiation exposure for scoliosis patients : Freehanded instrumentation in comparison to navigation]. Orthopade 2020; 49:732. [PMID: 32385582 DOI: 10.1007/s00132-020-03921-9] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Affiliation(s)
- C Berlin
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland.
| | - U Platz
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
| | - M Quante
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
| | - B Thomsen
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
| | - M Köszegvary
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
| | - H Halm
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
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Berlin C, Platz U, Quante M, Thomsen B, Köszegvary M, Halm H. [Collected data on freehand technique instrumentation and literature comparison on fluoroscopic and CT-assisted navigation]. Orthopade 2020; 49:724-731. [PMID: 32112224 DOI: 10.1007/s00132-020-03896-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND A proven and frequently used surgical procedure in patients with idiopathic scoliosis (IS) is posterior transpedicular corrective spondylodesis using the freehand technique. Novel procedures with fluoroscopically and computed tomography (CT)-assisted navigation are presumed to be less risky and more accurate. OBJECTIVE Is the freehand technique for IS safe with respect to screw-associated complications and intraoperative radiation exposure? MATERIAL AND METHODS Prospectively collected data (2017-2018) from 39 consecutive patients (average age 18.7 years) with thoracic single curvature IS (61.7° ± 13.9°) from a specialized scoliosis center were evaluated for the following parameters (mean ± standard deviation): total radiation product, fluoroscopy time, fused segments, operative time, blood loss and screw-associated complications. A comparison with data from the literature on intraoperative radiation exposure using navigation procedures was carried out. RESULTS The total radiation product per patient was 71.7 ± 44.0 cGy*cm2, fluoroscopy time 17.4 ± 8.6 s. (7.8 segments), operative time 183.5 ± 54.2 min and blood loss 379.5 ± 183 ml. There were no screw-associated complications in the entire collective. Correction of the main curvature was 75.7%. Comparison of the data with index data from the literature showed a 1.25-12.5-fold higher radiation exposure for patients with fluoroscopically assisted navigation and 9.25-12.3-fold higher radiation exposure with CT-assisted procedures compared to the present results. CONCLUSION The results of this study showed that with appropriate experience freehand positioning of pedicle screws is associated with comparable accuracy and less radiation exposure for patients than navigation procedures. With respect to the young age of patients, a radiation-induced long-term risk for malignant diseases should be taken into consideration.
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Affiliation(s)
- C Berlin
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland.
| | - U Platz
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
| | - M Quante
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
| | - B Thomsen
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
| | - M Köszegvary
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
| | - H Halm
- Klinik für Wirbelsäulenchirurgie und Skoliosezentrum, Schön Klinik Neustadt, Am Kiebitzberg 10, 23730, Neustadt in Holstein, Deutschland
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Sieren M, Berlin C, Oechtering T, Hunold P, Drömann D, Barkhausen J, Frydrychowicz A. Vergleich hämodynamischer Parameter von Probanden und Patienten mit pulmonaler Hypertonie mittels 4D- und 2D-Fluss MRT. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600252] [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)
- M Sieren
- UKSH, Klinik für Radiologie und Nuklearmedizin, Lübeck
| | - C Berlin
- UKSH, Klinik für Radiologie und Nuklearmedizin, Lübeck
| | - T Oechtering
- UKSH, Klinik für Radiologie und Nuklearmedizin, Lübeck
| | - P Hunold
- UKSH, Klinik für Radiologie und Nuklearmedizin, Lübeck
| | - D Drömann
- UKSH, Medizinische Klinik III, Pneumologie/Infektiologie, Lübeck
| | - J Barkhausen
- UKSH, Klinik für Radiologie und Nuklearmedizin, Lübeck
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Berlin C, Oechtering T, Sieren M, Drömann D, Barkhausen J, Frydrychowicz A. 4D-Fluss-MRT der Pulmonalarterien: Validierung und Fehlerquantifizierung an einem 3T-MRT mit digitaler Breitband-Technik. ROFO-FORTSCHR RONTG 2017. [DOI: 10.1055/s-0037-1600230] [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)
- C Berlin
- UKSH Lübeck, Klinik für Radiologie und Nuklearmedizin, Lübeck
| | - T Oechtering
- UKSH Lübeck, Klinik für Radiologie und Nuklearmedizin, Lübeck
| | - M Sieren
- UKSH Lübeck, Klinik für Radiologie und Nuklearmedizin, Lübeck
| | - D Drömann
- UKSH Lübeck, Medizinische Klinik III, Pulmologie, Lübeck
| | - J Barkhausen
- UKSH Lübeck, Klinik für Radiologie und Nuklearmedizin, Lübeck
| | - A Frydrychowicz
- UKSH Lübeck, Klinik für Radiologie und Nuklearmedizin, Lübeck
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Berlin C, Kowalewski DJ, Schuster H, Mirza N, Walz S, Handel M, Schmid-Horch B, Salih HR, Kanz L, Rammensee HG, Stevanović S, Stickel JS. Mapping the HLA ligandome landscape of acute myeloid leukemia: a targeted approach toward peptide-based immunotherapy. Leukemia 2014; 29:647-59. [PMID: 25092142 DOI: 10.1038/leu.2014.233] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/23/2014] [Accepted: 07/24/2014] [Indexed: 01/07/2023]
Abstract
Identification of physiologically relevant peptide vaccine targets calls for the direct analysis of the entirety of naturally presented human leukocyte antigen (HLA) ligands, termed the HLA ligandome. In this study, we implemented this direct approach using immunoprecipitation and mass spectrometry to define acute myeloid leukemia (AML)-associated peptide vaccine targets. Mapping the HLA class I ligandomes of 15 AML patients and 35 healthy controls, more than 25 000 different naturally presented HLA ligands were identified. Target prioritization based on AML exclusivity and high presentation frequency in the AML cohort identified a panel of 132 LiTAAs (ligandome-derived tumor-associated antigens), and 341 corresponding HLA ligands (LiTAPs (ligandome-derived tumor-associated peptides)) represented subset independently in >20% of AML patients. Functional characterization of LiTAPs by interferon-γ ELISPOT (Enzyme-Linked ImmunoSpot) and intracellular cytokine staining confirmed AML-specific CD8(+) T-cell recognition. Of note, our platform identified HLA ligands representing several established AML-associated antigens (e.g. NPM1, MAGED1, PRTN3, MPO, WT1), but found 80% of them to be also represented in healthy control samples. Mapping of HLA class II ligandomes provided additional CD4(+) T-cell epitopes and potentially synergistic embedded HLA ligands, allowing for complementation of a multipeptide vaccine for the immunotherapy of AML.
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Affiliation(s)
- C Berlin
- 1] Department of Immunology, Institute for Cell Biology, University of Tübingen, Tübingen, Germany [2] Department of Hematology and Oncology, University of Tübingen, Tübingen, Germany
| | - D J Kowalewski
- Department of Immunology, Institute for Cell Biology, University of Tübingen, Tübingen, Germany
| | - H Schuster
- Department of Immunology, Institute for Cell Biology, University of Tübingen, Tübingen, Germany
| | - N Mirza
- 1] Department of Immunology, Institute for Cell Biology, University of Tübingen, Tübingen, Germany [2] Department of Hematology and Oncology, University of Tübingen, Tübingen, Germany
| | - S Walz
- 1] Department of Immunology, Institute for Cell Biology, University of Tübingen, Tübingen, Germany [2] Department of Hematology and Oncology, University of Tübingen, Tübingen, Germany
| | - M Handel
- Hospital Group South-West, Department of Orthopedics, Calw, Germany
| | - B Schmid-Horch
- Institute for Clinical and Experimental Transfusion Medicine, University of Tübingen, Tübingen, Germany
| | - H R Salih
- 1] Department of Hematology and Oncology, University of Tübingen, Tübingen, Germany [2] Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - L Kanz
- Department of Hematology and Oncology, University of Tübingen, Tübingen, Germany
| | - H-G Rammensee
- 1] Department of Immunology, Institute for Cell Biology, University of Tübingen, Tübingen, Germany [2] Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - S Stevanović
- 1] Department of Immunology, Institute for Cell Biology, University of Tübingen, Tübingen, Germany [2] Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - J S Stickel
- 1] Department of Immunology, Institute for Cell Biology, University of Tübingen, Tübingen, Germany [2] Department of Hematology and Oncology, University of Tübingen, Tübingen, Germany
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Frydrychowicz A, Hägele J, Berlin C, Hons C, Oechtering T, Scharfschwerdt M, Meyer-Saraei R, Hunold P, Barkhausen J, Frydrychowicz A. Validierung der ktPCA-beschleunigten 4D Fluss-MRT in einem Modell der Aortenisthmusstenose. ROFO-FORTSCHR RONTG 2014. [DOI: 10.1055/s-0034-1372901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Berlin C, van den Berg N, Fendrich K, Fredrich D, Hoffmann W. Beeinflusst die Erreichbarkeit mit Pkw und ÖPNV die Inanspruchnahme von Frauenärzten in einer Modellregion? Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Berlin C, Fredrich D, van den Berg N, Fendrich K, Piegsa J, Hoffmann W. Erreichbarkeit von Frauenarztpraxen mit dem Öffentlichen Personennahverkehr (ÖPNV) in Vorpommern. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Berlin C, Berman L. The other partner: the young man's role in adolescent pregnancy. Fam Life Educ 2002; 12:4-10. [PMID: 12345686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Berlin C, Knahr K. Posterior dislocation of a semiconstrained total knee prosthesis. Orthopedics 2002; 25:533-4. [PMID: 12046915 DOI: 10.3928/0147-7447-20020501-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- C Berlin
- Department of Orthopedic Surgery II, Orthopaedic Hospital Speising, Vienna, Austria
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Abstract
Several regions of C9 including three cysteine-rich modules homologous to those in thrombospondin (TS), the low density lipoprotein receptor (LDL), the epidermal growth factors (EDGF), as well as two middle sections of the polypeptide chain were expressed in bacteria. Antibodies derived from these segments were used to probe the relative exposure of epitopes in C9 and poly(C9) using ELISAs. The results indicated that the TS and LDL modules are fully exposed in both monomer and polymer; however, the middle region of the polypeptide chain is buried in the monomer but external in the polymer. Using specified conditions, Fab fragments to the TS and LDL modules did not block C9 polymerization, but those to the middle region of the polypeptide chain and to some extent to the EDGF module did so. Immuno-electron microscopy of poly(C9) indicated that the C9 polypeptide chain assumes a 'U' shape, in which the TS and LDL modules are located on the upper rim. The EDGF module is located on the lower edge of the upper rim, and midsection of the polypeptide chain constructs the barrel of the tubule. Computer assisted contrast enhancement of select electron micrograph images of poly(C9) allowed the clear visualization of each subunit. These were seen to have a volute shape. The upper rim is composed of whorls that are apparently not in lateral contact. It is concluded that the TS and LDL modules do not participate directly in polymerization but cover the hydrophobic central region of the polypeptide chain in the monomer. As a consequence of circular polymerization the midsection of the polypeptide chain becomes exposed as each C9 lengths to fashion a volute form. reserved.
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Affiliation(s)
- R G DiScipio
- La Jolla Institute for Experimental Medicine, CA 92037, USA.
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Segal P, Feig PU, Schernthaner G, Ratzmann KP, Rybka J, Petzinna D, Berlin C. The efficacy and safety of miglitol therapy compared with glibenclamide in patients with NIDDM inadequately controlled by diet alone. Diabetes Care 1997; 20:687-91. [PMID: 9135927 DOI: 10.2337/diacare.20.5.687] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To compare the therapeutic effects of the alpha-glucosidase inhibitor miglitol (BAY m 1099), the sulfonylurea glibenclamide, and placebo on parameters of metabolic control and safety in patients with NIDDM that is inadequately controlled by diet alone. RESEARCH DESIGN AND METHODS After a 4-week placebo run-in period, 201 patients in 18 centers in 4 countries were randomized in a double-blind manner to miglitol (50 mg t.i.d., followed by 100 mg t.i.d.), glibenclamide (3.5 mg q.d/b.i.d.), or placebo for 24 weeks. Efficacy criteria were changes from baseline of HbA1c, fasting and postprandial blood glucose and insulin levels, body weight, and serum triglycerides. RESULTS Efficacy was assessed in 119 patients who completed the full protocol, and the results were similar to those obtained in 186 patients who fulfilled the validity criteria for analysis. Compared with placebo, mean baseline-adjusted HbA1c decreased by 0.75% (P = 0.0021) and 1.01% (P = 0.0001) in the miglitol and glibenclamide treatment groups, respectively. Blood glucose decreased slightly in the fasting state and considerably in the postprandial state in both treatment groups but not in the placebo group. Fasting insulin levels increased slightly (NS) in all treatment groups; however, postprandial insulin levels decreased with miglitol, while increasing markedly with glibenclamide (P = 0.0001 between all treatment groups). Gastrointestinal side effects (flatulence and diarrhea) occurred mostly in the miglitol-treated patients, while some glibenclamide-treated patients had symptoms suggestive of hypoglycemia. CONCLUSIONS Miglitol monotherapy is effective and safe in NIDDM patients. Compared with glibenclamide, it reduced HbA1c less effectively and caused more gastrointestinal side effects. On the other hand, glibenclamide, unlike miglitol, tended to cause hypoglycemia, hyperinsulinemia, and weight gain, which are not desirable in patients with NIDDM.
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Affiliation(s)
- P Segal
- Diabetes Unit, Chaim Sheba Medical Center, Tel-Hashomer, Israel
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Abstract
The use of aminoglycoside antibiotics is limited by ototoxicity that can produce permanent hearing loss. We report that concurrent administration of N-methyl-D-aspartate (NMDA) antagonists markedly attenuates both the hearing loss and destruction of cochlear hair cells in guinea pigs treated with aminoglycoside antibiotics. These findings indicate that aminoglycoside-induced hearing loss is mediated, in part, through an excitotoxic process. The high correlation (Spearman correlation coefficient: 0.928; P < 0.01) obtained between the relative cochleotoxicities of a series of aminoglycosides in humans and the potencies of these compounds to produce a polyamine-like enhancement of [3H]dizocilpine binding to NMDA receptors is consistent with this hypothesis, and provides a simple in vitro assay that can predict this aspect of aminoglycoside-induced ototoxicity.
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Affiliation(s)
- A S Basile
- Laboratory of Neuroscience, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA
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Abstract
A continuous microtiter plate nucleotidyltransferase substrate screening assay (NUSSA) is described which allows the identification of nucleotide sugar-synthesizing enzyme activities. The assay is accomplished by the determination of the common product of these enzymes PPi with a PPi-dependent phosphofructokinase. A subsequent enzyme reaction cascade leads to the production of 2 mol NAD per mol PPi. PPi-dependent phosphofructokinase was purified from potato with respect to contaminating enzyme activities which would disturb NUSSA performance. NUSSA allows the quick, simultaneous, and comprehensive check of different sugar 1-phosphate and nucleoside triphosphate substrates using purified pyrophosphorylases or crude extracts of plants, microorganisms, and mammalian tissues. Moreover, NUSSA will assist to evaluate these enzymes for the synthesis of important nucleotide sugars which serve as substrates of glycosyltransferases in carbohydrate syntheses.
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Affiliation(s)
- J E Ritter
- Institut für Enzymtechnologie, Heinrich-Heine-Universität Düsseldorf im Forschungszentrum Jülich, Germany
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Affiliation(s)
- N Hogg
- Leukocyte Adhesion Laboratory, Imperial Cancer Research Fund, London, UK
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Berlin C, Bargatze RF, Campbell JJ, von Andrian UH, Szabo MC, Hasslen SR, Nelson RD, Berg EL, Erlandsen SL, Butcher EC. alpha 4 integrins mediate lymphocyte attachment and rolling under physiologic flow. Cell 1995; 80:413-22. [PMID: 7532110 DOI: 10.1016/0092-8674(95)90491-3] [Citation(s) in RCA: 723] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Of the several families of adhesion receptors involved in leukocyte-endothelial cell interactions, only the selectins have been shown to initiate leukocyte interaction under physiologic shear; indeed, beta 2 (CD18) intergrins responsible for neutrophil arrest are unable to engage without prior selectin-mediated rolling. In contrast, alpha 4 (CD49d) integrins are shown here to initiate lymphocyte contract ("tethering") in vitro under shear and in the absence of a selectin contribution. The alpha 4 integrin ligands MAdCAM-1 and VCAM-1 support loose reversible interactions including rolling, as well as rapid sticking and arrest that is favored following integrin activation. Moreover, alpha 4 beta 7 mediates L-selectin (CD62L)-independent attachment of blood-borne lymphocytes to lamina propria venules in situ. Scanning electron microscopy of alpha 4 beta 7hi lymphoid cells reveals that, like L-selectin, alpha 4 beta 7 is highly concentrated on microvillous sites of initial cellular contact, whereas the beta 2 integrin LFA-1 is excluded from villi. Thus, alpha 4 but not beta 2 integrins can initiate leukocyte adhesion under flow, a capacity that may be in part a function of topographic presentation on microvilli.
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Affiliation(s)
- C Berlin
- Department of Pathology, Stanford University, California 94305
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Eilers RE, Berlin C. Advances in early detection of hearing loss in infants. Curr Probl Pediatr 1995; 25:60-66. [PMID: 7768114 DOI: 10.1016/s0045-9380(06)80024-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- R E Eilers
- University of Miami, Coral Gables, Florida, USA
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Andrew DP, Berlin C, Honda S, Yoshino T, Hamann A, Holzmann B, Kilshaw PJ, Butcher EC. Distinct but overlapping epitopes are involved in alpha 4 beta 7-mediated adhesion to vascular cell adhesion molecule-1, mucosal addressin-1, fibronectin, and lymphocyte aggregation. J Immunol 1994; 153:3847-61. [PMID: 7523506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The mouse CD8+ T cell lymphoma TK1 expresses high levels of alpha 4 beta 7 integrin, which it can use to interact with multiple ligands including mucosal addressin-1 (MAdCAM-1), VCAM-1, and fibronectin. In addition, alpha 4 beta 7 can support TK1 cell aggregation. Here we have produced and characterized a panel of mAbs against alpha 4 beta 7 to define antigenic and functional epitopes associated with its distinct functions. One mAb, DATK32, is unique in recognizing an epitope specific to the alpha 4 beta 7 heterodimer. Furthermore, DATK32 induces TK1 cell aggregation yet inhibits TK1 cell adhesion to MAdCAM-1, VCAM-1, and fibronectin. Considered as a whole, the panel of anti-alpha 4 beta 7 mAbs studied define unique patterns of inhibition for alpha 4 beta 7 binding to each of its defined molecular ligands. We conclude that alpha 4 beta 7 interactions with MAdCAM-1, VCAM-1, and fibronectin can be modulated by Ab binding to distinct epitopes and thus probably involve functionally separable, although physically overlapping binding sites on this multifunctional integrin. These findings are consistent with the general observation that integrins use distinct, potentially differentially regulated interaction sites for adhesion to multiple ligands. Extension of these concepts to alpha 4 beta 7 has important considerations for understanding the roles of this integrin in lymphocyte homing to mucosal sites and in cell-cell interactions during the immune response.
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Affiliation(s)
- D P Andrew
- Department of Pathology, Stanford University, CA 94305
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22
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Andrew DP, Berlin C, Honda S, Yoshino T, Hamann A, Holzmann B, Kilshaw PJ, Butcher EC. Distinct but overlapping epitopes are involved in alpha 4 beta 7-mediated adhesion to vascular cell adhesion molecule-1, mucosal addressin-1, fibronectin, and lymphocyte aggregation. The Journal of Immunology 1994. [DOI: 10.4049/jimmunol.153.9.3847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
The mouse CD8+ T cell lymphoma TK1 expresses high levels of alpha 4 beta 7 integrin, which it can use to interact with multiple ligands including mucosal addressin-1 (MAdCAM-1), VCAM-1, and fibronectin. In addition, alpha 4 beta 7 can support TK1 cell aggregation. Here we have produced and characterized a panel of mAbs against alpha 4 beta 7 to define antigenic and functional epitopes associated with its distinct functions. One mAb, DATK32, is unique in recognizing an epitope specific to the alpha 4 beta 7 heterodimer. Furthermore, DATK32 induces TK1 cell aggregation yet inhibits TK1 cell adhesion to MAdCAM-1, VCAM-1, and fibronectin. Considered as a whole, the panel of anti-alpha 4 beta 7 mAbs studied define unique patterns of inhibition for alpha 4 beta 7 binding to each of its defined molecular ligands. We conclude that alpha 4 beta 7 interactions with MAdCAM-1, VCAM-1, and fibronectin can be modulated by Ab binding to distinct epitopes and thus probably involve functionally separable, although physically overlapping binding sites on this multifunctional integrin. These findings are consistent with the general observation that integrins use distinct, potentially differentially regulated interaction sites for adhesion to multiple ligands. Extension of these concepts to alpha 4 beta 7 has important considerations for understanding the roles of this integrin in lymphocyte homing to mucosal sites and in cell-cell interactions during the immune response.
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Affiliation(s)
- D P Andrew
- Department of Pathology, Stanford University, CA 94305
| | - C Berlin
- Department of Pathology, Stanford University, CA 94305
| | - S Honda
- Department of Pathology, Stanford University, CA 94305
| | - T Yoshino
- Department of Pathology, Stanford University, CA 94305
| | - A Hamann
- Department of Pathology, Stanford University, CA 94305
| | - B Holzmann
- Department of Pathology, Stanford University, CA 94305
| | - P J Kilshaw
- Department of Pathology, Stanford University, CA 94305
| | - E C Butcher
- Department of Pathology, Stanford University, CA 94305
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Abstract
The L-selectin, a cell surface C-type lectin, directs lymphocyte traffic to lymph nodes, and contributes to lymphocyte homing to Peyer's patches and to leukocyte interactions with inflamed venules. Here we report that the mucosal vascular addressin MAdCAM-1, a mucosal endothelial adhesion molecule with immunoglobulin- and mucin-like domains, is a facultative ligand for L-selectin. MAdCAM-1 isolated from mesenteric lymph nodes, but not from cultured endothelioma cells, bears N-glycanase-resistant sialic acid-containing carbohydrate which supports adhesion of L-selectin-transfected lymphoid cells under shear. Interacting lymphoid cells display a 'rolling' behaviour similar to the selectin-dependent rolling of neutrophils observed in inflamed venules. MAdCAM-1 is also a ligand for the lymphocyte integrin homing receptor for Peyer's patches, alpha 4 beta 7 (ref. 7), and may be uniquely adapted to support both selectin-mediated lymphocyte rolling and integrin-mediated adhesion and arrest in vivo.
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Affiliation(s)
- E L Berg
- Department of Pathology, Stanford University, California 94305
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Berlin C, Berg EL, Briskin MJ, Andrew DP, Kilshaw PJ, Holzmann B, Weissman IL, Hamann A, Butcher EC. Alpha 4 beta 7 integrin mediates lymphocyte binding to the mucosal vascular addressin MAdCAM-1. Cell 1993; 74:185-95. [PMID: 7687523 DOI: 10.1016/0092-8674(93)90305-a] [Citation(s) in RCA: 1091] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The mucosal vascular addressin, MAdCAM-1, is an immunoglobulin superfamily adhesion molecule for lymphocytes that is expressed by mucosal venules and helps direct lymphocyte traffic into Peyer's patches (PP) and the intestinal lamina propria. We demonstrate that the lymphocyte integrin alpha 4 beta 7, also implicated in homing to PP, is a receptor for MAdCAM-1. Certain antibodies to alpha 4 and beta 7 integrin chains but not to the beta 2 integrin LFA-1 inhibit lymphocyte binding to purified MAdCAM-1 and to MAdCAM-1 transfectants. Lymph node lymphocytes, alpha 4 beta 7+ TK1 lymphoma cells, and a beta 7-transfected variant of an alpha 4+ B cell line, 38C13, bind constitutively to MAdCAM-1. Binding is enhanced by Mn(++)-induced integrin activation. The related integrin alpha 4 beta 1 supports efficient binding to VCAM-1 but not to MAdCAM-1, even after integrin activation, indicating that MAdCAM-1 is a preferential ligand for alpha 4 beta 7. Alpha 4 beta 7 can also bind VCAM-1, but this requires greater integrin activation than binding to MAdCAM-1. The findings imply a selective role for the interaction of alpha 4 beta 7 and MAdCAM-1 lymphocyte in homing to mucosal sites.
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Affiliation(s)
- C Berlin
- Department of Pathology, Stanford University, California 94305
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25
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Bührer C, Berlin C, Jablonski-Westrich D, Holzmann B, Thiele HG, Hamann A. Lymphocyte activation and regulation of three adhesion molecules with supposed function in homing: LECAM-1 (MEL-14 antigen), LPAM-1/2 (alpha 4-integrin) and CD44 (Pgp-1). Scand J Immunol 1992; 35:107-20. [PMID: 1370869 DOI: 10.1111/j.1365-3083.1992.tb02839.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Directed migration of lymphocytes from blood into lymph nodes and gut-associated lymphatic tissue, also referred to as homing, is subject to change following activation. Lymphocyte migration into lymphoid organs in vivo and binding to high endothelial venules in vitro is largely suppressed after short-term stimulation with phorbol esters. The observed functional alterations were correlated with changes in the expression of three putative homing receptors, LECAM-1 (MEL-14 antigen), LPAM-1/2 (alpha 4-integrin) and the murine CD44 (Pgp-1, H-CAM, Hermes-antigen equivalent) upon different modes of cellular activation. Expression of LECAM-1 (gp90 MEL-14), a lymphocyte adhesion molecule implicated in targeting extravasation into lymph nodes, was found to be lost almost completely within minutes after protein kinase C activation. LECAM-1 re-expression occurred within less than 24 h. Rapid loss of LECAM-1 was also observed after calcium ionophores whereas anti-CD3 or concanavalin A elicited a gradual and heterogeneous loss of LECAM-1 becoming detectable after several hours only. A number of cytokines tested were not able to induce alterations in LECAM-1 expression. In contrast, expression of LPAM-1/2 (alpha 4-integrin) and CD44 (Pgp-1, H-CAM), two adhesion molecules supposed to direct extravasation into Peyer's patches, remained stable for hours after every stimulus tested; CD44 expression gradually increased 24 h after mitogenic activation, whereas a small reduction only was observed for the expression of the alpha 4-chain under certain conditions. Thus, reduced extravasation of lymphocytes into Peyer's patches after activation is not due to a decline in the surface density of LPAM-1/2 alpha-chain or CD44 whereas alterations in migration into lymph nodes parallel the expression of LECAM-1.
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Affiliation(s)
- C Bührer
- Abt. f. Immunologie, Universitätskrankenhaus Eppendorf, Hamburg, Germany
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26
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Bührer C, Berlin C, Thiele HG, Hamann A. Lymphocyte activation and expression of the human leucocyte-endothelial cell adhesion molecule 1 (Leu-8/TQ1 antigen). Immunol Suppl 1990; 71:442-8. [PMID: 1702752 PMCID: PMC1384446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The Leu-8/TQ1 antigen, recently shown to be the human equivalent of the murine MEL-14 lymph node homing receptor and now designated as leucocyte-endothelial cell adhesion molecule, LECAM-1, has been used to dissect T, B and natural killer (NK) cells into various subpopulations with different functional properties, such as suppressor-inducer (CD4+ Leu-8/TQ1+) or helper (CD4+ Leu-8/TQ1-) T lymphocytes. Diminished Leu-8/TQ1 antigen density has been reported after lymphocyte activation with B- or T-cell specific stimuli for several days. In the present study, we sought to determine the signal requirements for altered Leu-8/TQ1 expression. Exposure of freshly isolated peripheral blood lymphocytes to phorbol 12-myristate 13-acetate (PMA) and/or calcium ionophores was found to cause rapid down-regulation of the Leu-8 antigen, with little or no Leu-8 reactivity remaining 1 hr after simultaneous addition of PMA and calcium ionophores to the culture medium. TQ1 reactivity was changed in parallel with that of Leu-8. Leu-8 expression of T and B cells was sensitive to both PMA and calcium ionophores, whereas Leu-8 expression of NK cells was affected by PMA but not by the calcium ionophore A23187. The effect of PMA on Leu-8/TQ1 expression could be antagonized by pretreatment with the protein kinase C inhibitor, H7, whereas that of A23187 could not. Partial re-expression of the Leu-8 antigen was seen 3 days after addition of PMA alone but not when it was given together with calcium ionophores. After Leu-8 down-regulation induced by 1 hr treatment with PMA or calcium ionophores. Leu-8 re-expression was observed within 24 hr when stimuli were removed by washing. Activation of T cells with anti-CD3 antibody resulted in a partial reduction of Leu-8/TQ1 expression, first detectable after 1-3 hr of stimulation and maximal at 24 hr. Fully mitogenmic concentrations of concanavalin A (Con A) did not affect Leu-8 expression within the first hours of culture. Transient reduction of Leu-8 expression was seen 24 hr after supraoptimal dosages of Con A, but Con A-stimulated lymphocytes cultured for 4-12 days with interleukin-2 (IL-2) retained Leu-8/TQ1 reactivity to a similar degree as fresh cells. In contrast to Leu-8/TQ1, CD45RA expression was not altered after 1 hr treatment with PMA and/or calcium ionophores but gradually disappeared during 1 week after Con A stimulation.(ABSTRACT TRUNCATED AT 400 WORDS)
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Affiliation(s)
- C Bührer
- Department of Medical Immunology, Eppendorf University Hospital, Hamburg, FRG
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27
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Hoglind J, Bauer E, Berlin C, Nicholas K, Parisi A, Kirkpatrick W. The ferret as a model for vasomotor biocompatibility testing of medical devices. Lab Anim Sci 1989; 39:450-2. [PMID: 2811290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- J Hoglind
- Baxter Pharmaseal Division, Baxter Healthcare Corporation, Irwindale, CA 91706
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28
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Abstract
Two pairs of siblings are reported suffering from reactive perforating collagenosis. The clinical features were recurrent crusted papules with a central keratinaceous plug. The plug was sometimes encircled by a narrow yellowish ring and a wider red ring, giving the appearance of a cockade. Lesions recurred spontaneously or were provoked by superficial injury to sun-exposed skin (phototraumatism). There were no other changes in the general health of these patients.
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Edelmann M, Massier H, Berlin C, Le Guillou G. Intercomparison of noise analysis and perturbation techniques for measuring fast reactor fuel element performance characteristics. Progress in Nuclear Energy 1985. [DOI: 10.1016/0149-1970(85)90021-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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30
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Berlin C, Brenner S. Leishmanid. Isr J Med Sci 1982; 18:285-6. [PMID: 7068361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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31
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Berlin C, Krakowski A, Brenner S. [Reactive perforating collagenosis with phototraumatism]. Harefuah 1978; 95:386-7. [PMID: 751862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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32
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Berlin C. Cyanide poisoning--a challenge. Arch Intern Med 1977; 137:993-4. [PMID: 879954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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33
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Berlin C. [In the memory of Arie Dostrovsky 1887-1975]. Hautarzt 1976; 27:251. [PMID: 783084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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34
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Abstract
A fluorometric method for determining bethanidine in blood plasma is described. The bethanidine is extracted into chloroform, a drug-dye complex with eosin Y is formed, and the fluorescence is measured (excitation, 535 nm; fluorescence, 560 nm). The assay detects 0.02 muM bethanidine (4 ng/ml) in plasma. The relative fluorescence of several body constituents and antihypertensive drugs is negligible. The plasma levels of bethanidine in four hypertensive patients receiving this drug were measured.
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35
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Kessler GF, Demers LM, Berlin C, Brennan RW. Letter: Phencyclidine and fatal status epilepticus. N Engl J Med 1974; 291:979. [PMID: 4414337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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36
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Berlin C, Porter R, Lowe-Bell S, Berlin H, Thompson C, Hughes L. Dichotic signs of the recognition of speech elements in normals, temporal lobectomees, and hemispherectomees. ACTA ACUST UNITED AC 1973. [DOI: 10.1109/tau.1973.1162478] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Krakowski A, Covo J, Berlin C. [Diabetic scleredema]. Harefuah 1973; 84:498-500. [PMID: 4719226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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38
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Abstract
A special form of scleredema, confined to adults with severe and complicated diabetes mellitus, has come to be recognized. It lasts for an indefinite period of time, without tendency to spontaneous remission. The name diabetic scleredema is proposed for this form. Two such patients are presented and the literature on the subject is reviewed. We believe that diabetic scleredema should be added to the list of conditions complicating or in any way associated with diabetes mellitus.
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