Araceli Bernal

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The clinical impact of PGD was evaluated through the analysis of the reproductive outcome before and after PGD in the same group of poor prognosis IVF patients, undergoing PGD for chromosomal abnormalities. Based on a series of 2359 PGD cycles, resulting in the establishment of 498 chromosomal abnormality-free clinical pregnancies, the reproductive history(More)
Female residents of the southern part of Mexico City diagnosed with epithelial ovarian cancer between 1989 and 1992 (n = 172) were interviewed regarding reproductive events. The same information was obtained from the controls (n = 441). There was an elevated risk for ovarian cancer associated with an increased number of abortions, relative risk = 3.66 (95%(More)
BACKGROUND The rendezvous technique combines endoscopy with percutaneous transhepatic cholangiography to facilitate cannulation of the bile duct when previous attempts have failed. METHODS Over a 7-year period, a total of 1753 ERCPs were performed. Twelve of these patients with a diagnosis of choledocholithiasis were poor candidates for surgery.(More)
We used an indirect enzyme immunoassay to describe the evolution of serum levels and the intrathecal production of IgG, IgA, and IgM antibodies to varicella-zoster virus (VZV) in eight patients with a syndrome of acute aseptic meningitis (AAM) and evidence of intrathecal production of VZV-specific IgG antibodies. Four of the eight patients showed no(More)
Sengstaken-Blakemore tamponade is used for the initial control of bleeding esophageal varices (BEV), although it is known to be potentially dangerous. Sclerotherapy has been shown to be effective in the treatment of BEV. This trial has been designed to evaluate comparatively the effectiveness of both procedures in the initial control of the hemorrhage.(More)
3H-sialyl residues transfer by subcellular epididymal fractions [plasma membrane (PM), microsomes (MI), and mitochondria (MT)] to both endogenous and exogenous acceptors was studied. Their fraction purity was valued (5' nucleotidase and glucose 6-phosphatase activities). The glycoprotein or glycolipid N-acetyl neuraminyl transferase activity in microsomes(More)
All of the known HIV-1 subtypes are present in sub-Saharan Africa. The B subtype is predominant in the United States and Europe, but previous studies have revealed that other subtypes are also in circulation. We report here on the genetic characterization of eight non-B subtype VIH-1 virus strains detected during 1999 in patients living in Spain and having(More)