Louis-Benoit Desroches

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PURPOSE We undertook this study to determine the prevalence and predictors of rhabdomyolysis in the hypophosphatemic state. PATIENTS AND METHODS To identify patients with hypophosphatemia, we reviewed medical admissions for the period of January through December 1989. The hypophosphatemic state was considered whenever the serum phosphate was less than or(More)
The molecular basis for changes in cytokine expression during T helper (Th) cell subset differentiation is not well understood. We have characterized transcriptional events related to cytokine gene expression in populations of naive T cell receptor-transgenic T cells as they are driven in vitro toward Th1 or Th2 phenotypes by interleukin (IL)-12 or IL-4(More)
To evaluate the determinants of rhabdomyolysis in the diabetic state, we compared biochemical and clinical features of diabetic patients with (group 1, 41 patients) and without (group 2, 36 patients) rhabdomyolysis. There was no difference in values for serum potassium, bicarbonate, phosphate and calcium between the two groups. Nineteen patients in group 2(More)
Hyperkalemia is a commonly encountered problem in dialysis patients with end-stage renal disease. In this study we evaluated the effect of mineralocorticoid therapy (MCT; fludrocortisone 0.1-0.3 mg per os daily) on serum potassium of hyperkalemic end-stage renal disease patients. Consecutive monthly clinical and biochemical profiles 3-6 months before and(More)
We analyze the fundamental plane projections of elliptical galaxies as a function of luminosity, using a sample of ≈ 80, 000 galaxies drawn from Data Release 4 (DR4) of the Sloan Digital Sky Survey (SDSS). We separate brightest cluster galaxies (BCGs) from our main sample and reanalyze their photometry due to a problem with the default pipeline sky(More)
While both society and astronomy have evolved greatly over the past fifty years, the academic institutions and incentives that shape our field have remained largely stagnant. As a result, the astronomical community is faced with several major challenges, including: (1) the training that we provide does not align with the skills that future astronomers will(More)
A reverberation-mapping program on NGC 4395, the least-luminous known Seyfert 1 galaxy, undertaken with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope, yields a measurement of the mass of the central black hole MBH = (3.6±1.1)×10 M⊙. The observations consist of two visits of 5 orbits each, in 2004 April and July. During each of these(More)
We report on two Chandra observations, and a simultaneous Hubble Space Telescope ultraviolet observation, of the dwarf Seyfert 1 galaxy NGC 4395. Each Chandra observation had a duration of ∼30 ks, with a separation of ∼50 ks. The spectrum was observed to harden between these observations via a scaling down of the soft-band flux. The inter-observation(More)