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Tellier M, Demers L, Auger C. ENGAGING PEOPLE WITH DEMENTIA IN USING AN ELECTRONIC PILL DISPENSER: RESEARCH PROTOCOL. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1732] [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: 11/14/2022] Open
Affiliation(s)
- M. Tellier
- Occupational Therapy, Université de Montréal, Laval, Quebec, Canada,
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, Quebec, Canada,
- Centre de Recherche Interdisciplinaire en Réadaptation (CRIR), Montréal, Quebec, Canada,
| | - L. Demers
- Occupational Therapy, Université de Montréal, Laval, Quebec, Canada,
- Centre de Recherche de l’Institut Universitaire de Gériatrie de Montréal (CRIUGM), Montréal, Quebec, Canada,
| | - C. Auger
- Occupational Therapy, Université de Montréal, Laval, Quebec, Canada,
- Centre de Recherche Interdisciplinaire en Réadaptation (CRIR), Montréal, Quebec, Canada,
- Centre de Réadaptation Lucie-Bruneau (CRLB), Montréal, Quebec, Canada
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Rochette A, Racine E, Lefebvre H, Bastien J, Tellier M. Actual and ideal services in acute care and rehabilitation for relatives post-stroke from three perspectives: Relatives, stroke clients and health professionals. J Rehabil Med 2014; 46:16-22. [DOI: 10.2340/16501977-1228] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Bouvier L, Bourcy M, Boulay M, Tellier M, Guérif P, Denancé C, Durel CE, Lespinasse Y. EUROPEAN PEAR CULTIVAR RESISTANCE TO BIO-PESTS: SCAB (VENTURIA PIRINA) AND PSYLLA (CACOPSYLLA PYRI). ACTA ACUST UNITED AC 2011. [DOI: 10.17660/actahortic.2011.909.53] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Stevens BR, Tellier M, Harvey W, Feldman DH, Bosworth J. Interleukin-2 and concanavalin A upregulate a cat2 isoform encoding a high affinity L-arginine transporter in feline lymphocytes. Can J Vet Res 2000; 64:187-91. [PMID: 10935886 PMCID: PMC1189612] [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: 02/17/2023]
Abstract
The immunological responses of activated lymphocytes are associated with increased nitric oxide (NO) biosynthesis. Studies in the literature have primarily approached control of NO by focusing on the regulation of the nitric oxide synthase (NOS) isoforms. However, the present study approaches the control of NO synthesis by addressing the regulation of L-arginine availability to lymphocytes via regulation of membrane transport. The guanidino nitrogen of L-arginine is the sole biosynthetic precursor of NO. We investigated cytokine and mitogen regulation of membrane L-arginine transporters for the first time in feline cells. Feline peripheral blood mononuclear cells were treated with interleukin-2 and concanavalin A, then alternatively spliced isoforms of L-arginine transporters known in other species were probed by RT-PCR, using various oligonucleotide primers that hybridized to several regions in common with the isoforms. Both high affinity and low affinity isoforms are encoded by mRNAs arising from mutually exclusive alternative splicing of the primary transcript. A region of 123 bp was obtained that encoded an extracellular polypeptide loop of 41 amino acids. The sequence of this region represented the high affinity L-arginine substrate binding site of a CAT2 transporter polypeptide isoform, but not the CAT2a isoform low affinity binding site. Neither of the inducible isoforms were constitutively expressed in unstimulated feline cells. This is the first report demonstrating that domestic cats possess the cat2 gene encoding an inducible L-arginine transporter, and, furthermore, that the high affinity isoform transcript is activated by interleukin-2 and concanavalin A in feline lymphocytes.
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Affiliation(s)
- B R Stevens
- Department of Physiology, College of Medicine, University of Florida, Gainesville 32610-0274, USA.
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Chabbat J, Porte P, Tellier M, Steinbuch M. Study of different human and animal thromboplastins with human factor VIIa in the presence of aprotinin. Thromb Res 1995; 77:387-92. [PMID: 7537922 DOI: 10.1016/0049-3848(95)93845-q] [Citation(s) in RCA: 3] [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: 01/25/2023]
Affiliation(s)
- J Chabbat
- Centre National de Transfusion Sanguine, Paris, France
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Abstract
A pasteurized preparation of fibrin glue composed of two separate stable, liquid components: highly purified human thrombin and fibrinogen concentrate is described. The components are mixed extemporaneously during application. Thrombin was prepared using a prothrombin complex concentrate as starting material which was activated by calcification and then heated in solution during 10 hours at 60 degrees C in the presence of stabilizers. The isolation of thrombin was carried out using a column of benzamidine-Sepharose 6B. The eluate contained thrombin with a high degree of purity (more than 95% assessed by SDS-PAGE) with a specific activity > 2,500 IU/mg protein. The purified liquid thrombin preparation remained stable for at least 6 months. The fibrinogen concentrate was prepared from cryoprecipitate after removal of factor VIII and then virally inactivated by pasteurization in the presence of glucose and sorbitol. After purification the concentrate containing a high level of fibrinogen was formulated with urea 0.5 M or arginine 5% before conditioning. Both components of the fibrin glue kept its biological properties for more than 6 months at +4 degrees C.
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Affiliation(s)
- J Chabbat
- Centre National de Transfusion Sanguine, Paris, France
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Chabbat J, Porte P, Tellier M, Steinbuch M. Study of different human and animal thromboplastins with human factor VIIa in the presence of aprotinin. Thromb Res 1994; 75:213-8. [PMID: 7526485 DOI: 10.1016/0049-3848(94)90070-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- J Chabbat
- Centre National de Transfusion Sanguine, Paris, France
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Abstract
A highly purified preparation of human plasma factor VIIa was submitted to chromogenic assays with S-2288 factors IXa, Xa, activated protein C and thrombin being absent. Factor VIIa alone or in the presence of calcium, kept its activity even in the presence of high concentrations of aprotinin, inhibition appeared only in the presence of a factor VIIa-tissue factor complex. A two-stage amidolytic assay using activation of purified factor X and hydrolysis of S-2765 chromogenic substrate by the generated Xa was used to show a competitive inhibition with a Ki value of 30 microM. Aprotinin had no effect on factor Xa amidolytic activity per se. The factor VIIa-tissue factor complex could be adsorbed to immobilized aprotinin and removed by a chaotropic ion like KSCN 3 M. The assays with the DFP inactivated VIIa-tissue factor complex proved that the interaction involved the active site of factor VIIa. The inhibition of the VIIa-tissue factor complex was demonstrated in a clotting assay using aprotinin enriched normal or factor VIII deficient plasma.
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Affiliation(s)
- J Chabbat
- Centre National de Transfusion Sanguine, Paris, France
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Abstract
A new tyrosine-specific LC assay with pre-column fluorogenic derivatization is described for Tyr-Gly as model peptide. o-Hydroxylation of the tyrosine residue with tyrosinase in the presence of ascorbic acid, followed by oxidation to the corresponding quinone by potassium ferricyanide at room temperature and condensation with 1,2-diamino-1,2-diphenylethane in the presence of acetonitrile gave a highly fluorescent species. The resulting fluorescence signal was stable over the investigated period of 5 h and exhibited a linear response curve on a reversed-phase LC system. Under optimized reaction conditions, the lower limit of detection for Tyr-Gly was 200 fmol per injection. Examination of a series of dipeptides (L-Tyr-L-X; X = Gly, Ala, Val, Leu, Phe) showed no significant influence of neighbouring amino acids on the enzymatic hydroxylation by tyrosinase. This and the formation of a highly fluorescent signal for Leu-enkephalin suggests the general feasibility of the approach for the determination of tyrosine-containing peptides.
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Affiliation(s)
- M Tellier
- College of Pharmacy, University of Florida, Gainesville 32610
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Lecuyer MP, Zhang YX, Tellier M, Lespinasse Y. In vitro pollen tube division of irradiated and non-irradiated apple pollen. ACTA ACUST UNITED AC 1991. [DOI: 10.1051/agro:19910605] [Citation(s) in RCA: 9] [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: 11/14/2022]
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Roch-Ramel F, Diezi-Chomety F, De Rougemont D, Tellier M, Widmer J, Peters G. Renal excretion of uric acid in the rat: a micropuncture and microperfusion study. Am J Physiol 1976; 230:768-76. [PMID: 1266982 DOI: 10.1152/ajplegacy.1976.230.3.768] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Free-flow micropuncture experiments were done in rats of three strains infused with small amounts of urate [plasma urate (P urate) = 95 +/- 8 muM]. Urate concentrations in tubular fluid were measured by an accurate chemical fluorometric ultramicromethod. In fluid from surface glomeruli, the glomerular fluid-to-plasma urate ratio [GF/P) urate] was 0.99 +/- 0.03 (n=11), i.e., lower than expected for total ultrafiltrability of plasma urate. Along proximal convolutions, net reabsorption of 55% of filtered urate was demonstrated. Small amounts of urate may have been reabsorbed between late proximal and early distal sites. Net transepithelial movements of urate did not occur in distal tubules or collecting ducts. In microperfusion experiments on proximal tubules, both a reabsorptive flow of urate (loss of perfused [2-14C]urate) and a secretory flow (entrance of cold urate into perfusate) of the same order of magnitude were demonstrated. Neither flow was influenced by simultaneous water movements. Microperfusion of Henle's loops indicated a significant but very small net reabsorption.
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de Sèze S, Guérin C, Tellier M. [Motor re-education in rheumatology: basic principles and principal indications]. Rev Rhum Mal Osteoartic 1968; 35:661-3. [PMID: 5717216] [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: 01/16/2023]
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de Sèze S, Cremer G, Levernieux J, Tellier M, Denis A, Samuel J. [Role, indications, contraindications and results of muscular retraining. Doctrine of kinesitherapy in rheumatology]. Rev Rhum Mal Osteoartic 1965; 32:498-505. [PMID: 5294851] [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: 01/14/2023]
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de Sèze S, Welfling J, Forestier F, Tellier M. [The place of physical therapy in rheumatology]. Rhumatologie 1965; 17:149-52. [PMID: 5294249] [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: 01/14/2023]
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