Samuel Segura

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The ploidy levels and amounts of DNA of 23 Opuntia species from Mexico were determined by flow cytometry. Four different ploidy levels (2n = 2x, 2n = 4x, 2n = 6x, 2n = 8x) with 2C-DNA amount ranging from 4.17 pg (Opuntia incarnadilla Griffiths) to 6.53 pg (Opuntia heliabravoana Scheinvar) were determined among the samples analyzed. Polyploidy is widespread(More)
The objective of the study was to analyse the prevalence and clinical significance of hypocomplementemia in a large series of patients diagnosed either with systemic lupus erythematosus (SLE) or with primary antiphospholipid syndrome (APS) and its association with the main clinical, hematological and immunological features of these diseases. Between 1992(More)
This work aims to explore in the field the relationship between the integrity of sperm DNA and the quality of offspring as a possible cause of the decline of a feral fish population through reproduction impairment. Mature nase (Chondrostoma nasus) were caught during the breeding season in three locations (A-C) of the Rhône River basin and gametes collected(More)
The capulín, or black cherry tree (Prunus serotina Ehrh.) is a tree with edible fruits native to North America that has been used not just as a source of food but also as a source of energy (its wood) since prehispanic times. Mexico has three of the five botanical subspecies in the P. serotina botanical complex, which have not yet been characterized for(More)
OBJECTIVES To study the diagnostic and prognostic contribution of laryngeal electromyography in unilateral vocal-fold immobility in adults. MATERIAL AND METHODS A retrospective study included patients with unilateral vocal-fold immobility undergoing laryngeal electromyography between 2007 and 2015. Neurogenic, normal or myogenic findings were compared to(More)
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