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Titolo:
Relationships between sperm motility characteristics assessed by the computer-aided sperm analysis (CASA) and fertilization rates in vitro
Autore:
Hirano, Y; Shibahara, H; Obara, H; Suzuki, T; Takamizawa, S; Yamaguchi, C; Tsunoda, H; Sato, I;
Indirizzi:
Jichi Med Sch, Dept Obstet & Gynecol, Minami Kawachi, Tochigi 3290498, Japan Jichi Med Sch Minami Kawachi Tochigi Japan 3290498 Tochigi 3290498, Japan
Titolo Testata:
JOURNAL OF ASSISTED REPRODUCTION AND GENETICS
fascicolo: 4, volume: 18, anno: 2001,
pagine: 213 - 218
SICI:
1058-0468(200104)18:4<213:RBSMCA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
INVITRO FERTILIZATION; SEMEN ANALYSIS; HUMAN-SPERMATOZOA; QUALITY-ANALYZER; FERTILITY; PROGRAM; IVF; PREDICTION; INJECTION; ABILITY;
Keywords:
computer-aided sperm analysis; fertilization; sperm motility;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
22
Recensione:
Indirizzi per estratti:
Indirizzo: Shibahara, H Jichi Med Sch, Dept Obstet & Gynecol, 3311-1 Yakushiji, Minami Kawachi, Tochigi 3290498, Japan Jichi Med Sch 3311-1 Yakushiji Minami Kawachi Tochigi Japan 3290498
Citazione:
Y. Hirano et al., "Relationships between sperm motility characteristics assessed by the computer-aided sperm analysis (CASA) and fertilization rates in vitro", J AS REPROD, 18(4), 2001, pp. 213-218

Abstract

Purpose: Some studies have suggested that computer-aided sperm analysis (CASA) estimates of concentration and movement characteristics of progressively motile spermatozoa are related to fertilization rates in vitro. However,it has also been suggested that the greater number of motility parameters assessed by CASA does nor imply more precision in predicting fertility. This study was carried out to investigate the relationships between the CASA estimates and fertilization rates in vitro. Methods: Semen quality analysis M,ns performed using CASA in 136 in vitro fertilization-embryo transfer (IVF-ET) cycles with at least 3 oocytes collected. The CASA estimates before and after swim-up were compared between 108cycles with fertilization rate > 50% ("good" group) and 28 cycles with fertilization rate less than or equal to 50% ("poor" group). Results: Before swim-up, there were significant correlations between fertilization rates anti CASA estimates, including amplitude of lateral head displacement (ALH) (r = .269), curvilinear velocity (VCL) (r = .297), straightline velocity (VSL) (r = .266), and rapid sprm movement (Rapid) (r = .243). There was also a significant correlation between the fertilization rates and straightness (STR) after swim-up (r = -0.178). As for sperm movement characteristics there were significant differences of ALH (p < .005), VCL (p < .001), VSL (p < .005), and Rapid (p < .01) between "good" and "poor" groups before swim-up. After swim-up, there were significant differences of VCL(p < .005), average path velocity (VAP) (p < .005), and Rapid (p < .05) between the two groups. Conclusions These results indicate that some of the CASA estimates providereliable estimation of the fertilizing ability of human sperm. There were significant differences of th e two sperm movement characteristics, including VCL and Rapid (before and after swim-up), indicating that the total distance traveled by unpin sperm movement might be important in human sperm fertilizing abilities.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 03:19:14