Abstract:
:The force generated by the radiation pressure of a low power laser beam induces an optical trap which may be used to manipulate sperm. We studied the effect of the optical trap on sperm motility. A Nd:YAG laser beam was coupled to a conventional microscope and focused into the viewing plane by the objective lens. Sperm were caught in the trap and manipulated by a joy stick controlled motorized stage. After different exposure periods, the velocity and patterns were analysed by a computerized image processor. There were minor changes in sperm velocity when exposed to the trap for 30 seconds or less. A gradual decrease in the mean linear velocity was observed after 45 seconds of exposure. This optical micromanipulator may also be useful for studying the force generated by a single spermatozoa and evaluating the influence of drugs on motility.
journal_name
Fertil Steriljournal_title
Fertility and sterilityauthors
Tadir Y,Wright WH,Vafa O,Ord T,Asch RH,Berns MWsubject
Has Abstractpub_date
1989-11-01 00:00:00pages
870-3issue
5eissn
0015-0282issn
1556-5653pii
S0015-0282(16)53057-Xjournal_volume
52pub_type
杂志文章abstract:OBJECTIVE:To report a case of parasitic leiomyoma of the abdominal wall after laparoscopic myomectomy. DESIGN:Case report. SETTING:Large medical center. PATIENT(S):A 31-year-old woman with a newly developed palpable mass in the abdominal wall near the trocar site of a previous laparoscopic myomectomy. INTERVENTION(...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2007.08.068
更新日期:2008-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of Interceed(TC7) (Johnson and Johnson, New Brunswick, NJ) in the prevention of postoperative adhesions in a rabbit uterine horn model. Interceed(TC7) was tested in the presence and absence of absorbable suture. DESIGN, SETTING, PARTICIPANTS:Forty-one New Zealand white rabbits h...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:
更新日期:1992-10-01 00:00:00
abstract::The interaction of medroxyprogesterone acetate (MPA) with cortisol binding to corticosteroid-binding globulin (CBG) was studied with the use of an aqueous two-phase system with polyethylene glycol and dextran for equilibrium partition. Competitive binding analyses were also performed for progesterone (P), levonorgestr...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)48612-7
更新日期:1985-06-01 00:00:00
abstract:OBJECTIVE:To determine whether foot reflexology, a complementary therapy, has an effect greater than sham reflexology on induction of ovulation. DESIGN:Sham-controlled randomized trial with patients and statistician blinded. SETTING:Infertility clinic in Plymouth, United Kingdom. PATIENT(S):Forty-eight women attendi...
journal_title:Fertility and sterility
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.fertnstert.2008.04.016
更新日期:2009-06-01 00:00:00
abstract:OBJECTIVE:To evaluate vaginal bleeding profiles with lower doses of conjugated equine estrogens (CEE) and medroxyprogesterone acetate (MPA) as continuous combined therapy. DESIGN:The Women's Health, Osteoporosis, Progestin, Estrogen (Women's HOPE) study, a randomized, double-blind, placebo-controlled trial. SETTING:S...
journal_title:Fertility and sterility
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1016/s0015-0282(01)01792-7
更新日期:2001-06-01 00:00:00
abstract:OBJECTIVE:To investigate the IVF outcome for patients with endometriosis. DESIGN:Meta-analysis. SETTING:Academic research center. PATIENT(S):A MEDLINE search and review of the literature were performed. Patients were classified by level of endometriosis, and controls were classified according to the indication for I...
journal_title:Fertility and sterility
pub_type: 杂志文章,meta分析
doi:10.1016/s0015-0282(02)03112-6
更新日期:2002-06-01 00:00:00
abstract:OBJECTIVE:To examine the literature systematically in order to identify prospective comparative trials answering the following question: Is vitrification of human embryos associated with a higher postthawing survival rate as compared with slow freezing? DESIGN:Systematic review and meta-analysis. SETTING:University-b...
journal_title:Fertility and sterility
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.fertnstert.2007.06.010
更新日期:2008-07-01 00:00:00
abstract:OBJECTIVE:To systematically review the literature to identify the impact of polycystic ovary syndrome (PCOS) on specific health-related quality of life domains. DESIGN:Meta-analysis. SETTING:N/A. PATIENT(S):The outcomes of 423 patients and 285 controls from 5 articles that used the Short Form 36 (SF-36) questionnair...
journal_title:Fertility and sterility
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.fertnstert.2011.05.072
更新日期:2011-08-01 00:00:00
abstract::Many will agree that the use of laparoscopy to diagnose and potientially treat endometriosis in patients who suffer from infertility has been superseded by IVF and sometimes oocyte donation, especially in older patients. The findings of our study add another dimension to management of endometriosis in the setting of i...
journal_title:Fertility and sterility
pub_type: 评论,杂志文章,评审
doi:10.1016/j.fertnstert.2005.06.033
更新日期:2005-12-01 00:00:00
abstract:OBJECTIVE:To determine the role of parental and biological factors on the U.S. male birth fraction from 1964 through 1988. DESIGN:Logistic regression on annual U.S. male births by race group. SETTING:Population-based data. PATIENT(S):Live births in the United States 1964 through 1988. INTERVENTION(S):None. MAIN OU...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(99)00576-2
更新日期:2000-03-01 00:00:00
abstract::Danazol and gestrinone are effective drugs in the treatment of endometriosis. Their mechanism of action remains uncertain, but may be related to their androgenic activity. The authors examined the effect of danazol on human endometrial cells cultured in vitro, its two major metabolites, ethisterone and 2 hydroxymethyl...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)59706-4
更新日期:1988-02-01 00:00:00
abstract:OBJECTIVE:To evaluate whether ethnicity is associated with involuntary childlessness and perceived reasons for difficulties in becoming pregnant. DESIGN:Cross-sectional analysis of baseline data from a longitudinal cohort. SETTING:Multiethnic, community-based observational study of US women. PATIENT(S):Women in midl...
journal_title:Fertility and sterility
pub_type: 杂志文章,多中心研究
doi:10.1016/j.fertnstert.2011.08.039
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVE:To determine whether self-selected women with polycystic ovary syndrome (PCOS) are abnormal compared with a control population. DESIGN:Case-control. SETTING:Support group meeting organized and initiated by patients. PATIENT(S):Forty-five self-selected women with PCOS and 80 control women. INTERVENTION(S):...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(02)03153-9
更新日期:2002-07-01 00:00:00
abstract::This monograph, written by the pioneers of IVF and reproductive medicine, celebrates the history, achievements, and medical advancements made over the last 40 years in this rapidly growing field. ...
journal_title:Fertility and sterility
pub_type: 历史文章,杂志文章,评审
doi:10.1016/j.fertnstert.2018.06.005
更新日期:2018-07-15 00:00:00
abstract:OBJECTIVE:To analyze the results of ongoing pregnancies and deliveries after assisted reproductive technology (ART) in women aged >/=41 years, stratified by year of age. DESIGN:Retrospective study. SETTING:University hospital, IVF unit. PATIENT(S):A total of 431 IVF and intracytoplasmic sperm injection (ICSI) cycles...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(00)00697-x
更新日期:2000-09-01 00:00:00
abstract::Three groups of dogs underwent testicular ischemia for a 3-hour period. Group I (10 animals) was not subsequently perfused. Group II (10 animals) underwent subsequent perfusion by a new in vivo reversible method via the internal spermatic artery with heparinized saline. Group III (5 animals) underwent perfusion with S...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)42924-9
更新日期:1977-11-01 00:00:00
abstract:OBJECTIVE:To modify Tarkowski's air-dry technique for mouse oocytes to develop a rapid, consistent procedure for human oocytes that enables accurate scoring of meiotic stage. DESIGN, SETTING, AND PATIENTS:Meiotically immature human oocytes, obtained after oophorectomy, were cultured for various periods and then subjec...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)55021-3
更新日期:1992-05-01 00:00:00
abstract:OBJECTIVE:To determine the effect of P on nitric oxide synthase (NOS) expression in human endometrial epithelial cells. DESIGN:Laboratory-based study. SETTING:University-based research institute. PATIENT(S):None. INTERVENTION(S):The effect of P on the expression of NOS protein isoforms was examined in an in vitro p...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2008.05.019
更新日期:2009-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the relationship between serum sex hormone-binding globulin (SHBG) and parameters of insulin sensitivity in women with polycystic ovary syndrome (PCOS) and controls, and determine the feasibility of using SHBG levels to predict insulin resistance. DESIGN:Evaluation of a prospectively collected da...
journal_title:Fertility and sterility
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.fertnstert.2006.02.108
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVE:Immunobead testing (IBT), the current standard for antisperm antibody detection, is time consuming and somewhat subjective. To overcome these limitations and maintain accuracy, we studied an immunofluorescent assay using flow cytometry. DESIGN:A validation study comparing flow cytometry to IBT in the detecti...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:
更新日期:1995-04-01 00:00:00
abstract:OBJECTIVE:To report three cases of interstitial pregnancies treated successfully by combining uterine artery embolization (UAE) and ultrasound-guided local administration of methotrexate (MTX); and to assess the effect of UAE on ovarian reserve by prospectively measuring serum antimüllerian hormone (AMH) levels. DESIG...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2009.03.087
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVE:To investigate chorionic villous vasculogenesis (maturation) and development of the vasculosyncytial membrane (margination) using CD34 immunohistochemistry. DESIGN:Case-control study. SETTING:Microscopic analysis of first trimester chorionic villi. PATIENT(S):Twelve patients with anembryonic pregnancies, 1...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2004.02.119
更新日期:2004-09-01 00:00:00
abstract::Eight rats served as control subjects with sham surgeries and eight rats underwent ovariectomy. Two months later, the expression of muscarinic receptors, neuronal nitric oxide synthase (nNOS), and estrogen receptor (R) at the mRNA level were assessed by reverse-transcription polymerase chain reaction. The results show...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2009.01.161
更新日期:2009-09-01 00:00:00
abstract::Rabbits were immunized with homologous spermatozoa to investigate their autoimmunogenic nature. Major sperm autoantigens that elicit antisperm antibodies were analyzed molecularly by the sodium dodecylsulfate (SDS) gel/protein blot radioimmunobinding method. IgG fractions of the autoimmune sera were purified by a prot...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:
更新日期:1984-01-01 00:00:00
abstract::Specimens for chlamydial culture, direct fluorescent antibody (DFA) test, two enzyme immunoassays (EIA) for antigen detection, and serum for chlamydial antibodies were collected from 256 infertile women. Specimens were taken from the tubes during tuboplasty and from the cervix and endometrium during laparoscopy or tub...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:
更新日期:1991-02-01 00:00:00
abstract::Two male cousins with partial 21-hydroxylase deficiency presented with bilateral testicular masses and infertility. In both cases, the testicular masses, consisting of adrenocorticotropic hormone-dependent pluripotential cells, were thought to play a major etiologic role in infertility. The administration of very smal...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)47485-6
更新日期:1983-12-01 00:00:00
abstract:OBJECTIVE:To evaluate the effects on the lipid pattern and insulin sensitivity of hirsute women of an oral contraceptive pill containing 30 microg of ethinyl estradiol and 150 microg of desogestrel. DESIGN:Prospective clinical study. SETTING:Tertiary care institutional hospital. PATIENT(S):16 hirsute women. INTERVE...
journal_title:Fertility and sterility
pub_type: 临床试验,杂志文章
doi:10.1016/s0015-0282(00)00718-4
更新日期:2000-10-01 00:00:00
abstract::Activities of deoxyribonucleic acid (DNA) polymerase alpha, beta, and gamma were measured in extracts of testicular biopsy specimen obtained from 37 cases of male infertility with left varicocele and compared with those of 6 normal controls. It was observed that levels of DNA polymerase alpha, beta, and gamma were sig...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/s0015-0282(16)60318-7
更新日期:1988-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the interactive effects of dietary soy and menstrual cycle phase on breast proliferation, apoptosis, and sex steroid receptor expression in premenopausal female cynomolgus monkeys. DESIGN:Animals were randomized to receive diets with either casein lactalbumin or soy as the protein source for 12 m...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2005.08.059
更新日期:2006-04-01 00:00:00
abstract:OBJECTIVE:To evaluate the association between genetic variants in Ser-Arg (SR) protein-coding genes and the susceptibility of nonobstructive azoospermia (NOA) in Chinese men. DESIGN:Case-control study. SETTING:State Key Laboratory of Reproductive Medicine in Nanjing Medical University conducted the genotyping and exa...
journal_title:Fertility and sterility
pub_type: 杂志文章
doi:10.1016/j.fertnstert.2014.02.033
更新日期:2014-06-01 00:00:00