20 research outputs found
Unknowable bodies, unthinkable sexualities: lesbian and transgender legal invisibility in the Toronto women's bathhouse raid
Although litigation involving sexual orientation and gender identity discrimination claims has generated considerable public attention in recent years, lesbian and transgender bodies and sexualities still remain largely invisible in Anglo-American courts. While such invisibility is generally attributed to social norms that fail to recognize lesbian and transgender experiences, the capacity to 'not see' or 'not know' queer bodies and sexualities also involves wilful acts of ignorance. Drawing from R. v Hornick (2002) a Canadian case involving the police raid of a women's bathhouse, this article explores how lesbian and transgender bodies and sexualities are actively rendered invisible via legal knowledge practices, norms and rationalities. It argues that limited knowledge and limited thinking not only regulate the borders of visibility and belonging, but play an active part in shaping identities, governing conduct and producing subjectivity
Mycobacterium tuberculosis Lipolytic Enzymes as Potential Biomarkers for the Diagnosis of Active Tuberculosis
BACKGROUND: New diagnosis tests are urgently needed to address the global tuberculosis (TB) burden and to improve control programs especially in resource-limited settings. An effective in vitro diagnostic of TB based on serological methods would be regarded as an attractive progress because immunoassays are simple, rapid, inexpensive, and may offer the possibility to detect cases missed by standard sputum smear microscopy. However, currently available serology tests for TB are highly variable in sensitivity and specificity. Lipolytic enzymes have recently emerged as key factors in lipid metabolization during dormancy and/or exit of the non-replicating growth phase, a prerequisite step of TB reactivation. The focus of this study was to analyze and compare the potential of four Mycobacterium tuberculosis lipolytic enzymes (LipY, Rv0183, Rv1984c and Rv3452) as new markers in the serodiagnosis of active TB. METHODS: Recombinant proteins were produced and used in optimized ELISA aimed to detect IgG and IgM serum antibodies against the four lipolytic enzymes. The capacity of the assays to identify infection was evaluated in patients with either active TB or latent TB and compared with two distinct control groups consisting of BCG-vaccinated blood donors and hospitalized non-TB individuals. RESULTS: A robust humoral response was detected in patients with active TB whereas antibodies against lipolytic enzymes were infrequently detected in either uninfected groups or in subjects with latent infection. High specifity levels, ranging from 93.9% to 97.5%, were obtained for all four antigens with sensitivity values ranging from 73.4% to 90.5%, with Rv3452 displaying the highest performances. Patients with active TB usually exhibited strong IgG responses but poor IgM responses. CONCLUSION: These results clearly indicate that the lipolytic enzymes tested are strongly immunogenic allowing to distinguish active from latent TB infections. They appear as potent biomarkers providing high sensitivity and specificity levels for the immunodiagnosis of active TB
Clonage et expression du gene de la protease de HIV-1 chez Escherichia coli. Etude de l'enzyme
SIGLEAvailable from INIST (FR), Document Supply Service, under shelf-number : T 84725 / INIST-CNRS - Institut de l'Information Scientifique et TechniqueFRFranc
Mode of action of clonidine upon islet function: dissociated effects upon the time course and magnitude of insulin release.
Clonidine (0.08 to 80.0 ng/ml) caused a dose-related inhibition of glucose-stimulated insulin release, but failed to affect glucose oxidation, glucose-stimulated 45Ca net uptake, and adenylate cyclase activity in isolated rat islets. Phentolamine antagonized the effect of clonidine upon insulin release. Despite profound inhibition of insulin secretion, the drug failed to affect the time course for the changes evoked by glucose in either 45Ca fractional outflow rate from perfused islets or insulin release from the isolated perfused pancreas. The latter changes were multiphasic, revealing an initial secretory peak, a period of low secretory activity, and a second secretory elevation before establishing a period characterized by a steadily and slowly increasing insulin output. In the clonidine-treated islets, the secretory rate was not significantly different from the basal value during the period after the initial secretory response. Thus, despite continuous stimulation with glucose, insulin release appears as a discontinuous phenomenon, even when little insulin is secreted during the initial phase of stimulation.In VitroJournal Articleinfo:eu-repo/semantics/publishe
In vitro and in vivo insulinotropic action of methyl pyruvate
SCOPUS: ar.jinfo:eu-repo/semantics/publishe
In vivo stimulation of insulin release by succinic acid methyl esters
SCOPUS: ar.jinfo:eu-repo/semantics/publishe
The interplay between metabolic and cationic events in islet cells: coupling factors and feedback mechanisms.
In the mechanism of glucose-stimulated insulin release, the coupling between glucose metabolism and the remodelling of cationic fluxes in the B-cell apparently represents a multifactorial process involving changes in the generation rate of H+, reducing equivalents and ATP. This process is susceptible to feedback regulatory mechanisms through which primary changes in cationic movements affect glucose metabolism. The interplay between metabolic and ionic events may participate in the rhythmogenesis of bioelectrical and secretory phenomena.In VitroJournal ArticleResearch Support, Non-U.S. Gov'tinfo:eu-repo/semantics/publishe
Secretory, biosynthetic, respiratory, cationic, and metabolic responses of pancreatic islets to palmitate and oleate
SCOPUS: ar.jinfo:eu-repo/semantics/publishe
Insulinotropic action of glutamic acid dimethyl ester
SCOPUS: ar.jinfo:eu-repo/semantics/publishe