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Chaumont A, Engler E, Schurhammer R. Is Charge Scaling Really Mandatory when Developing Fixed-Charge Atomistic Force Fields for Deep Eutectic Solvents? J Phys Chem B 2020; 124:7239-7250. [DOI: 10.1021/acs.jpcb.0c04907] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- A. Chaumont
- Université de Strasbourg, CNRS, CMC UMR 7140, Laboratoire MSM, F-67000 Strasbourg, France
| | - E. Engler
- Université de Strasbourg, CNRS, CMC UMR 7140, Laboratoire MSM, F-67000 Strasbourg, France
| | - R. Schurhammer
- Université de Strasbourg, CNRS, CMC UMR 7140, Laboratoire MSM, F-67000 Strasbourg, France
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Steyer E, Birgé J, Engler E, Rabaud C. [A first turn of audit of practice on the topic of the antibiotic prescription in ORL and respiratory infections y 189 Lorraine general practitioners and pediatrists]. Med Mal Infect 2005; 35 Suppl 2:S90-3. [PMID: 15978399 DOI: 10.1016/s0399-077x(05)81231-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- E Steyer
- Médecin Généraliste, 3, rue Anatole France, 57525 Talange, France
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Cellucci CJ, Brodfuehrer PD, Acera-Pozzi R, Dobrovolny H, Engler E, Los J, Thompson R, Albano AM. Linear and nonlinear measures predict swimming in the leech. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 2000; 62:4826-4834. [PMID: 11089026 DOI: 10.1103/physreve.62.4826] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2000] [Indexed: 05/23/2023]
Abstract
Stimulation of a trigger interneuron of an isolated nerve cord preparation of the medicinal leech, Hirudo medicinalis, sometimes leads to swimming; sometimes it does not. We investigate signals transmitted in the ventral cord of the leech after stimulation and seek quantitative measures that would make it possible to distinguish signals that predict swimming from those that do not. We find that a number of linear as well as nonlinear measures provide statistically significant distinctions between the two kinds of signals. The linear measures are the time dependence of (i) the standard deviation and (ii) the autocorrelation function at a small time delay. The nonlinear measures are (i) a measure of nonlinear predictability and (ii) the time dependence of a measure of the size of the embedded signal trajectory. Calculations using surrogate data suggest that the differences between the two classes of signals are dynamical as well as statistical.
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Affiliation(s)
- CJ Cellucci
- Department of Physics, Bryn Mawr College, Bryn Mawr, Pennsylvania 19010 and Department of Physics, Ursinus College, Collegeville, Pennsylvania 19426The Arthur P. Noyes Clinical Research Center, Norristown, Pennsylvania 19401, USA
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Muzet N, Engler E, Wipff G. Demixing of Binary Water−Chloroform Mixtures Containing Ionophoric Solutes and Ion Recognition at a Liquid−Liquid Interface: A Molecular Dynamics Study. J Phys Chem B 1998. [DOI: 10.1021/jp981869v] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- N. Muzet
- Laboratoire MSM, UMR 7551, Institut de Chimie, Université Louis Pasteur, 4 rue B. Pascal, 67 000 Strasbourg, France
| | - E. Engler
- Laboratoire MSM, UMR 7551, Institut de Chimie, Université Louis Pasteur, 4 rue B. Pascal, 67 000 Strasbourg, France
| | - G. Wipff
- Laboratoire MSM, UMR 7551, Institut de Chimie, Université Louis Pasteur, 4 rue B. Pascal, 67 000 Strasbourg, France
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Lauterbach M, Engler E, Muzet N, Troxler L, Wipff G. Migration of Ionophores and Salts through a Water−Chloroform Liquid−Liquid Interface: Molecular Dynamics−Potential of Mean Force Investigations. J Phys Chem B 1998. [DOI: 10.1021/jp972939l] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Lauterbach
- Laboratoire MSM, Institut de Chimie, 4, rue B. Pascal, 67 000 Strasbourg, France
| | - E. Engler
- Laboratoire MSM, Institut de Chimie, 4, rue B. Pascal, 67 000 Strasbourg, France
| | - N. Muzet
- Laboratoire MSM, Institut de Chimie, 4, rue B. Pascal, 67 000 Strasbourg, France
| | - L. Troxler
- Laboratoire MSM, Institut de Chimie, 4, rue B. Pascal, 67 000 Strasbourg, France
| | - G. Wipff
- Laboratoire MSM, Institut de Chimie, 4, rue B. Pascal, 67 000 Strasbourg, France
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Montgomery ER, Taylor S, Segretario J, Engler E, Sebastian D. Development and validation of a reversed-phase liquid chromatographic method for analysis of aspirin and warfarin in a combination tablet formulation. J Pharm Biomed Anal 1996; 15:73-82. [PMID: 8895078 DOI: 10.1016/0731-7085(96)01813-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [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: 02/02/2023]
Abstract
A stability-indicating liquid chromatographic method for the simultaneous analysis of aspirin and warfarin in warfarin sodium/aspirin combination (DuP 647) tablets has been developed and validated. This paper presents linearity, accuracy, precision, robustness, recovery, limits of detection and quantitation, and cross-validation data. The method has been shown to be specific and stability-indicating, and to give results comparable to existing methods for the individual components. Solution stability has been optimized for routine analysis.
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Affiliation(s)
- E R Montgomery
- DuPont Merck Pharmaceutical Company, Experimental Station, Wilmington, DE 19880-0353, USA
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Bachmann S, Peters J, Engler E, Ganten D, Mullins J. Transgenic rats carrying the mouse renin gene--morphological characterization of a low-renin hypertension model. Kidney Int 1992; 41:24-36. [PMID: 1593860 DOI: 10.1038/ki.1992.4] [Citation(s) in RCA: 142] [Impact Index Per Article: 4.4] [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: 12/27/2022]
Abstract
Transgenic rats [TGR; strain name TGR(mRen2)27] harboring the mouse Ren-2 renin gene have been recently generated as a model for the study of primary hypertension that offers the advantage of a clearly-defined genetic alteration. Expression of the mouse Ren-2 gene causes severe hypertension (200 to 260 mm Hg) which is responsive to converting enzyme inhibitors. Compared to control transgene-negative littermates, plasma renin and angiotensin II values are lowered in TGR, whereas plasma prorenin values are strongly elevated. The adrenal gland in TGR shows marked overexpression of mouse renin messenger RNA; in situ hybridization using a 35S-labelled mouse-renin RNA probe reveals that enhanced renin expression is mainly localized to cells of the zona glomerulosa and outer zona fasciculata. Immunohistochemically, renin protein in the TGR adrenal gland is stored in larger quantities than in controls. Adrenal transgene expression probably accounts for most of the elevated plasma prorenin level in TGR, since bilateral adrenalectomy (ADX) causes a significant decrease in prorenin level (318 +/- 79 ng angiotensin I/ml/hr before ADX to 70 +/- 43 ng 4 days after ADX, P less than 0.0005). In the kidney, renin synthesis is almost completely suppressed in TGR. In situ hybridization demonstrates that few juxtaglomerular afferent arterioles express renin. Immunohistochemically, the TGR kidney shows significantly reduced renin and angiotensin II immunoreactivity at the afferent arteriole. Ultrastructural analysis of the afferent arteriolar wall frequently shows the complete absence of renin secretory granules since the granular cells are mostly converted into smooth muscle cells. Beginning at an age of approximately four to six months, TGR develop hypertension-related alterations and pathological lesions in various tissues. In the kidney, the wall thickness of arterioles and arteries is strongly increased, and glomerular lesions including different stages of sclerosis are observed. The thoracic aorta displays a considerable increase in tunica media thickness due to both myocyte hypertrophy and interstitial fibrosis. Coronary arteries and arterioles of the heart are thickened and perivascular fibrosis is observed. The data show that TGR(mRen2)27 transgenic rats display all typical characteristics of hypertensive pathology, making them an interesting model for therapeutic interventions. The fact that these changes occur in animals with a single gene difference to normotensive rats makes them a particularly suitable model for studies on gene-related hypertensive processes.
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Affiliation(s)
- S Bachmann
- Department of Anatomy of Heidelberg, Germany
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Engler E. Governor Engler and health care. Mich Nurse 1991; 64:7-8. [PMID: 1997819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Engler E. New Senate majority leader sees competitive world ahead. Interview by Carole Eberly. Mich Med 1984; 83:196, 198. [PMID: 6717300] [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: 01/21/2023]
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Görlitzer K, Engler E. [1,3-Dicarbonyl compounds, XVI: 4,5-Dihydro-4-oxoindeno[1,2-b]pyran-2-carboxylic acid (author's transl)]. Arch Pharm (Weinheim) 1980; 313:429-35. [PMID: 6105857 DOI: 10.1002/ardp.19803130506] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Engler E, Matthias D, Becker CH. Pathomorphological reactions of myocardium and intramural vessels of rats in the course of hypertension induced by depot angiotensin. Autoradiographic, light and electron microscopic investigations. Exp Pathol (Jena) 1980; 18:37-51. [PMID: 7379899 DOI: 10.1016/s0014-4908(80)80070-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Autoradiographic, light and electron microscopic investigations on the effect of depot angiotensin on the hearts of rats suggested that the myocardium and the intramural vessels reacted with an activation of the mesenchymal and DNA metabolism already 3 hrs, after the injection of depot angiotensin. The reactions in the capillaries and small arterioles were dominating. Degenerative alterations could be found in the cardiac muscle cells only 9 hrs. after injection and culminated in infarction-like necroses and intensive mesenchymal proliferation after the 4th A II injection. Despite further daily applications of A II the degenerative and necrotic myocardial alterations will extensively diminish until the 14th day of experiment, while the mesenchymal activation and the enhanced DNA synthesis in the vessels remained unchanged. Thus an initial stage with the development of disseminated muscle fibre necroses and infarction-like alterations and a stage of compensatory adaptation may be distinguished in the heart after depot angiotensin injections.
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Engler E, Matthias D, Becker CH, Herrmann HJ. The stimulating influence of the experimental procedure on several somatic reactions in animal experiments. Act Nerv Super (Praha) 1978; 20:17-9. [PMID: 636752] [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: 12/23/2022]
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Becker CH, Matthias D, Engler E, Herrmann J. Ultrastructural investigation of peripheral arterial vessels in the cortex of rats with experimental hypertension. Exp Pathol (Jena) 1976; 12:183-93. [PMID: 1033081 DOI: 10.1016/s0014-4908(76)80042-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The peripheral arterial blood vessels in the cerebrum of 36 experimental animals and 9 controls were studied by electron microscopy. In 5 rats of these renal hypertension was produced (the animals were sacrificed 3 to 15 days following the second operation). 24 animals were treated with depot angiotensin (0.02 to 2.5 mg/daily) for 3 hr up to 40 days, and 7 rats were neurotized for 1 to 41/2 months. The alterations of the cerebral vessels were distinctly different within these 3 models already in the early reactions. Thus, even in the first 14 days of the experiment with renal and angiotensinogenic hypertension alterations were observed that did never occur in the neurotized rats. There were always observed disturbances in permeability of the cerebral vessels, but they were never followed by such heavy wall insudations as usually noticed in the splanchnic vessels. The less frequent occurrence of hemorrhages and malacic processes in the rat brain is ascribed aside from the physiological properties of the brain supply, to genetic factors and the absence of arteriosclerotic burden to the vascular wall in the non-dietetically pretreated experimental animals.
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Engler E. [Detection of hog cholera virus using contrast immunofluorescence methods at various times during the course of infection]. Monatsh Veterinarmed 1971; 26:181-4. [PMID: 4932671] [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: 01/13/2023]
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Engler E, Urbaneck D, Olechnowitz AF. [Immunohistological demonstration of hog cholera virus using a contrast immunofluorescence method]. Monatsh Veterinarmed 1970; 25:232-6. [PMID: 4934006] [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: 01/13/2023]
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