Juan Carlos Domínguez

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Causes of poor fertility after insemination of frozen-thawed (FT) sperm include reduced sperm viability at thawing and a shorter longevity of surviving sperm in the female genital tract due to sub-lethal damage. The present studies examined the effect of incubating thawed boar sperm in seminal plasma (SP) on sperm membrane integrity (viability), and(More)
Cryopreservation induces extensive biophysical and biochemical changes in the sperm. In the present study, we used flow cytometry to assess the capacitation-like status of frozen-thawed boar spermatozoa and its relationship with intracellular calcium, assessment of membrane fluidity, modification of thiol groups in plasma membrane proteins, reactive oxygen(More)
The aim of this study was to determine the effects of injecting 5 mg of PGF2alpha into the vulvar mucosa on the reproductive performance of sows maintained under field conditions. At an intensively managed piggery in northwest Spain, two experimental groups were formed randomly and observed throughout the year. The first group comprised sows receiving(More)
To ensure sufficient numbers of pregnant females, particularly at hotter times of the year, hormonal induction of gilt oestrus may be necessary. However, the gilt oestrus and ovulation responses to gonadotrophin treatment have often proven unpredictable. The objective of this study was to examine possible reasons for this unpredictability. Prepubertal gilts(More)
STUDY DESIGN Prospective clinical study. OBJECTIVES To assess fasting and postprandial (PP) perception of rectal distension and its correlation with symptoms in patients with spinal cord injury (SCI) and neurogenic bowel dysfunction compared to ten healthy subjects (HS). SETTING Experimental Medicine and Motility Unit, Mexico General Hospital and(More)
Endogenous oxytocin is released by the sow at the time of mating in response to stimulation by the boar, which may explain, at least partially, the importance of the relationship between the boar's courting activity and the subsequent reproductive performance of the sow. The aim of this study was to determine the effects on reproductive performance of(More)
Osteoblasts secrete transforming growth factor beta (TGF beta) as a biologically inert, latent complex that must be dissociated before the growth factor can exert its effects. We have examined the production and proteolytic activation of latent TGF beta (LTGF beta) by clonal UMR 106-01 rat osteosarcoma cells and neonatal mouse calvarial (MC) osteoblast-like(More)
BACKGROUND AND AIM OF THE STUDY Patients undergoing chronic hemodialysis are at increased risk of infective endocarditis (IE), and mortality is high in this group. The study aim was to determine clinical features and outcome of IE in patients with chronic renal failure and receiving hemodialysis. METHODS Between 1987 and 2002, all consecutive patients(More)