Search Results - "OLMEDO, S. Brugo"

Focal spermatogenesis originates in euploid germ cells in classical Klinefelter patients by Sciurano, R.B., Luna Hisano, C.V., Rahn, M.I., Brugo Olmedo, S., Rey Valzacchi, G., Coco, R., Solari, A.J.

“…BACKGROUND Klinefelter syndrome is the most frequent chromosome abnormality in human males. This paper aims to investigate the ploidy of meiotic and…”
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Incidence of tail structure distortions associated with dysplasia of the fibrous sheath in human spermatozoa by Rawe, V.Y., Galaverna, G.D., Acosta, A.A., Olmedo, S. Brugo, Chemes, H.E.

“…Dysplasia of the fibrous sheath (DFS) is an anomaly found in spermatozoa of severe asthenozoospermic patients. Marked hypertrophy and hyperplasia of the…”
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Decreased protein tyrosine phosphorylation and membrane fluidity in spermatozoa from infertile men with varicocele by Buffone, M.G., Brugo-Olmedo, S., Calamera, J.C., Verstraeten, S.V., Urrutia, F., Grippo, L., Corbetta, J.P., Doncel, G.F.

“…Varicocele is a prevalent pathology among infertile men. The mechanisms linking this condition to infertility, however, are poorly understood. Our previous…”
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Sperm ubiquitination in patients with dysplasia of the fibrous sheath by Rawe, V.Y., Olmedo, S.Brugo, Benmusa, A., Shiigi, S.M., Chemes, H.E., Sutovsky, P.

“…BACKGROUND: Human sperm with structural abnormalities display an increased content of the cellular proteolytic marker peptide, ubiquitin. We investigated…”
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A pathology of the sperm centriole responsible for defective sperm aster formation, syngamy and cleavage by Rawe, V.Y., Terada, Y., Nakamura, S., Chillik, C.F., Olmedo, S.Brugo, Chemes, H.E.

“…BACKGROUND: In the present report we analyse the structural and functional features of sperm from a patient with severe asthenoteratozoospermia and failure of…”
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Pronuclear abnormalities and cytoskeletal organization during assisted fertilization in a patient with multifollicular ovarian response by RAWE, V. Y, KOPELMAN, S, NODAR, F. N, OLMEDO, S. Brugo, CHILLIK, C. F

“…To analyze the distribution of a tubulins and acetylated alpha tubulins and the chromatin configuration in abnormally fertilized zygotes from a patient with a…”
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Ultrastructural pathology of the sperm flagellum: association between flagellar pathology and fertility prognosis in severely asthenozoospermic men by Chemes, H E, Olmedo, S B, Carrere, C, Oses, R, Carizza, C, Leisner, M, Blaquier, J

“…An ultrastructural study of spermatozoa in a series of 247 severely asthenozoospermic patients disclosed two kinds of anomalies. The first was dysplasia of the…”
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Male antisperm antibodies: association with a modified sperm stress test and lipid peroxidation by Calamera, J. C., Doncel, G. F., Brugo-Olmedo, S., Sayago, A., Acosta, A. A.

“…We previously reported a modified sperm stress test (MOST), low scores (< 0.39) in which were associated with sperm‐related abnormal in vitro fertilization…”
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An azoospermic man with a double-strand DNA break-processing deficiency in the spermatocyte nuclei: Case report by Sciurano, R.B., Rahn, M.I., Pigozzi, M.I., Olmedo, S. Brugo, Solari, Alberto J.

“…BACKGROUND: The mechanisms of meiotic arrest in human spermatogenesis are poorly known. METHODS AND RESULTS: A testicular biopsy from an azoospermic male…”
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Acephalic spermatozoa and abnormal development of the head–neck attachment: a human syndrome of genetic origin by Chemes, H.E., Puigdomenech, E.T., Carizza, C., Olmedo, S. Brugo, Zanchetti, F., Hermes, R.

“…A series of 10 young sterile men with acephalic spermatozoa or abnormal head–mid-piece attachments is presented. Nine of these patients had 75–100% spermatozoa…”
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Abnormal assembly of annulate lamellae and nuclear pore complexes coincides with fertilization arrest at the pronuclear stage of human zygotic development by Rawe, V.Y., Olmedo, S.Brugo, Nodar, F.N., Ponzio, R., Sutovsky, P.

“…BACKGROUND: The assembly of nuclear pore complexes (NPC) and their cytoplasmic stacks, annulate lamellae (AL), promote normal nucleocytoplasmic trafficking and…”
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Successful intracytoplasmic sperm injection with spermatozoa from a patient with dysplasia of the fibrous sheath and chronic respiratory disease by Olmedo, S B, Nodar, F, Chillik, C, Chemes, H E

“…The present report describes a successful intracytoplasmic sperm injection (ICSI) procedure performed with immotile spermatozoa from a young man with a…”
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Cellular events during fertilization failure in humans(2)(2) by Rawe, V Y, Galaverna, G D, Nodar, F N, Brugo-Olmedo, S, Vitullo, A D

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Andrology. Acephalic spermatozoa and abnormal development of the head-neck attachment: a human syndrome of genetic origin by Chemes, H E, Puigdomenech, E T, Carizza, C, Olmedo, S Brugo, Zanchetti, F, Hermes, R

“…A series of 10 young sterile men with acephalic spermatozoa or abnormal head-mid-piece attachments is presented. Nine of these patients had 75-100% spermatozoa…”
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Modified sperm stress test: a simple assay that predicts sperm-related abnormal in-vitro fertilization by Calamera, J C, Doncel, G F, Olmedo, S B, Kolm, P, Acosta, A A

“…Loss of sperm motility is associated with the process of sperm senescence and occurs at different rates within a given normal or abnormal sperm population…”
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Conservative management versus aspiration of functional ovarian cysts before ovarian stimulation for assisted reproduction by FISZBAJN, G. E, LIPOWICZ, R. G, ELBERGER, L, GRABIA, A, PAPIER, S. D, BRUGO OLMEDO, S. P, CHILLIK, C. F

“…To compare the efficiency of transvaginal ultrasound-guided functional ovarian cyst aspiration, with conservative management, in the outcome of patients…”
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Prognostic value of the strict criteria: an Argentinian experience by Hernàndez, M, Molina, R, Olmedo, J, Olmedo, S B, Coetzee, K, Estofàn, D

“…The prognostic value of normal sperm morphology, evaluated according to the strict criteria, was prospectively assessed. The study included 112 IVF cycles. The…”
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Development of an objective and manual technique to study the human sperm morphology by Calamera, J C, Quiros, M C, Olmedo, S B, Sanchez, I, Botti, C

“…The aim of the present paper is to present results of sperm morphology using an objective and manual technique by video image. Experiment 1:252 spermatozoa…”
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Serum inhibin B may be a reliable marker of the presence of testicular spermatozoa in patients with nonobstructive azoospermia by Brugo-Olmedo, S, De Vincentiis, S, Calamera, J C, Urrutia, F, Nodar, F, Acosta, A A

“…To establish the predictive value of serum inhibin B levels as an indicator of the presence of testicular spermatozoa in nonobstructive azoospermia, compared…”
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Cytoskeletal organization defects and abortive activation in human oocytes after IVF and ICSI failure by Rawe, V.Y., Olmedo, S.Brugo, Nodar, F.N., Doncel, G.D., Acosta, A.A., Vitullo, A.D.

“…In this study, we analysed the distribution of β tubulins to detect spindle and cytoplasmic microtubules, α acetylated tubulins for sperm microtubules and…”
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