Search Results - "CHEMES, H. E"

Sperm pathology: a step beyond descriptive morphology. Origin, characterization and fertility potential of abnormal sperm phenotypes in infertile men by Chemes, Hector E., Rawe, Vanesa Y.

“…Sperm pathology is presented as the discipline of characterizing structural and functional deficiencies in abnormal spermatozoa. This concept complements that…”
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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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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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Exome sequencing reveals novel causes as well as new candidate genes for human globozoospermia by Oud, M S, Okutman, Ö, Hendricks, L A J, de Vries, P F, Houston, B J, Vissers, L E L M, O’Bryan, M K, Ramos, L, Chemes, H E, Viville, S, Veltman, J A

“…Abstract STUDY QUESTION Can exome sequencing identify new genetic causes of globozoospermia? SUMMARY ANSWER Exome sequencing in 15 cases of unexplained…”
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Exome sequencing reveals variants in known and novel candidate genes for severe sperm motility disorders by Oud, M S, Houston, B J, Volozonoka, L, Mastrorosa, F K, Holt, G S, Alobaidi, B K S, deVries, P F, Astuti, G, Ramos, L, Mclachlan, R I, O'Bryan, M K, Veltman, J A, Chemes, H E, Sheth, H

“…What are the causative genetic variants in patients with male infertility due to severe sperm motility disorders? We identified high confidence disease-causing…”
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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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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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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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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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The role of sperm proteasomes during sperm aster formation and early zygote development: implications for fertilization failure in humans by Rawe, Vanesa Y., Díaz, Emilce S., Abdelmassih, Roger, Wójcik, Cezary, Morales, Patricio, Sutovsky, Peter, Chemes, Héctor E.

“…BACKGROUND Sperm aster organization during bovine and human fertilization requires a paternally-derived centriole that must first disengage from the sperm tail…”
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Phenotypes of Sperm Pathology: Genetic and Acquired Forms in Infertile Men by CHEMES, HECTOR E.

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Dysplasia of the fibrous sheath: an ultrastructural defect of human spermatozoa associated with sperm immotility and primary sterility by Chemes, H E, Brugo, S, Zanchetti, F, Carrere, C, Lavieri, J C

“…A study of a group of five patients presenting with primary sterility and showing severe sperm immotility is presented. Most spermatozoa in these patients…”
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Is a CIS phenotype apparent in children with Disorders of Sex Development? Milder testicular dysgenesis is associated with a higher risk of malignancy by Chemes, H. E., Venara, M., Rey, G., Arcari, A. J., Musse, M. P., Papazian, R., Forclaz, V., Gottlieb, S.

“…Summary All malignant testicular germ cell tumors (TGCT) of adult men are preceded by an in situ stage (CIS) of protracted evolution. The adult CIS is well…”
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Molecular genetic analysis of two human sperm fibrous sheath proteins, AKAP4 and AKAP3, in men with dysplasia of the fibrous sheath by Turner, R. M, Musse, M. P, Mandal, A, Klotz, K, Jayes, F. C, Herr, J. C, Gerton, G. L, Moss, S. B, Chemes, H. E

“…Dysplasia of the fibrous sheath (DFS) is characterized by male infertility, asthenozoospermia, and morphologically abnormal flagella that possess a severely…”
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Is infancy a quiescent period of testicular development? Histological, morphometric, and functional study of the seminiferous tubules of the cebus monkey from birth to the end of puberty by Rey, R A, Campo, S M, Bedecarrás, P, Nagle, C A, Chemes, H E

“…The objective of this study was to describe the maturational changes observed in the seminiferous tubules of the monkey Cebus apella, a New World primate…”
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Pregnancies established through intracytoplasmic sperm injection (ICSI) using spermatozoa with dysplasia of fibrous sheath by OLMEDO, S. B, RAWE, V. Y, NODAR, F. N, GALAVERNA, G. D, ACOSTA, A. A, CHEMES, H. E

“…Dysplasia of the fibrous sheath (DFS) is an anomaly found in asthenozoospermic patients with extremely low or absent motility. In order to determine the…”
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Lack of a head in human spermatozoa from sterile patients: a syndrome associated with impaired fertilization by Chemes, H E, Carizza, C, Scarinci, F, Brugo, S, Neuspiller, N, Schwarsztein, L

“…Three patients with primary sterility in whom the majority of spermatozoa lacked a normally implanted head are presented. A small cephalic knob was evident in…”
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Infancy is not a quiescent period of testicular development by Chemes, Héctor E.

“…Postnatal evolution of the testis in most laboratory animals is characterized by the close continuity between neonatal activation and pubertal development. In…”
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Extreme asthenozoospermia and chronic respiratory disease: a new variant of the immotile cilia syndrome by Chemes, H E, Morero, J L, Lavieri, J C

“…Two patients suspected of suffering from ciliary dyskinesis were investigated. They consulted for primary infertility and chronic respiratory disease…”
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The Role of Gonadotropins and Testosterone on Initiation of Spermatogenesis in the Immature Rat by Chemes, H E, Dym, M, Raj, H G

“…Daily injections of specific antisera raised in rabbits against rat FSH or sheep LH were used to define the roles of gonadotropins and testosterone on the…”
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