Safety evaluation of a male injectable antifertility agent, styrene maleic anhydride, in rats.

Abstract:

:Injection of a polymer, styrene maleic anhydride (SMA), into the lumen of the vas deferens of rats, was observed to have effective and reversible contraception. The safety evaluation of the polymer, for 90 days, was carried out in Charles Foster male rats. There have been no significant changes in any of the toxicity parameters in the test animals as compared to the control animals. Hence, it is concluded that the compound is non-toxic to rodents.

journal_name

Contraception

journal_title

Contraception

authors

Sethi N,Srivastava RK,Singh RK

doi

10.1016/s0010-7824(89)80010-1

subject

Has Abstract

pub_date

1989-02-01 00:00:00

pages

217-26

issue

2

eissn

0010-7824

issn

1879-0518

pii

S0010-7824(89)80010-1

journal_volume

39

pub_type

杂志文章
  • Associations between recent contraceptive use and quality of life among women.

    abstract:BACKGROUND:Whether contraception affects health-related quality of life (HRQoL) is unclear. STUDY DESIGN:We conducted a cross-sectional analysis of routine intake data collected from women aged 18-50 years, including the RAND-36 (Research and Development Corporation) measure of HRQoL, pregnancy intentions and recent c...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2011.08.004

    authors: Williams SL,Parisi SM,Hess R,Schwarz EB

    更新日期:2012-03-01 00:00:00

  • A multicenter efficacy and safety study of an oral contraceptive containing 150 micrograms desogestrel and 30 micrograms ethinyl estradiol.

    abstract::The study reported herein is the primary efficacy and safety study conducted to support U.S. registration of an oral contraceptive containing 150 micrograms desogestrel and 30 micrograms ethinyl estradiol. A large multicenter study enrolled 1,221 women at 50 centers in the United Kingdom. A total of 11,656 cycles of e...

    journal_title:Contraception

    pub_type: 临床试验,杂志文章,多中心研究

    doi:10.1016/0010-7824(92)90094-a

    authors: Walling M

    更新日期:1992-10-01 00:00:00

  • "We have to what?": lessons learned about engaging support staff in an interprofessional intervention to implement MVA for management of spontaneous abortion.

    abstract:BACKGROUND:Including support staff in practice change initiatives is a promising strategy to successfully implement new reproductive health services. The Resident Training Initiative in Miscarriage Management (RTI-MM) is an intervention designed to facilitate implementation of manual vacuum aspiration (MVA) for managem...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2013.06.007

    authors: Darney BG,VanDerhei D,Weaver MR,Stevens NG,Prager SW

    更新日期:2013-08-01 00:00:00

  • Can we identify women at risk of pregnancy despite using emergency contraception? Data from randomized trials of ulipristal acetate and levonorgestrel.

    abstract:BACKGROUND:Emergency contraception (EC) does not always work. Clinicians should be aware of potential risk factors for EC failure. STUDY DESIGN:Data from a meta-analysis of two randomized controlled trials comparing the efficacy of ulipristal acetate (UPA) with levonorgestrel were analyzed to identify factors associat...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2011.02.009

    authors: Glasier A,Cameron ST,Blithe D,Scherrer B,Mathe H,Levy D,Gainer E,Ulmann A

    更新日期:2011-10-01 00:00:00

  • Bleeding patterns with monophasic and triphasic low-dose ethinyl estradiol combined oral contraceptives.

    abstract:BACKGROUND:This retrospective analysis evaluated the association of age and weight with cycle control in women using either of two formulations of low-estrogen-dose oral contraceptives. STUDY DESIGN:Data for this secondary analysis were derived from a randomized multicenter trial assessing the efficacy and safety of n...

    journal_title:Contraception

    pub_type: 杂志文章,多中心研究,随机对照试验

    doi:10.1016/j.contraception.2008.02.007

    authors: Hampton RM,Zhang HF,Barnowski C,Wan GJ

    更新日期:2008-06-01 00:00:00

  • Controversies in family planning: persistently elevated serum human chorionic gonadotropin levels after aspiration abortion.

    abstract::Low but rising serum human chorionic gonadotropin (hCG) levels occur infrequently after an induced abortion. Because this scenario rarely occurs after suction aspiration, clinicians may have higher suspicion for an uncommon diagnosis. The differential diagnosis includes both common and uncommon diagnoses, such as inco...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2018.07.136

    authors: Chen MJ,Pymar H,Creinin MD

    更新日期:2018-12-01 00:00:00

  • Effect of a once weekly oral contraceptive upon gonadotrophin and gonadal steroid levels.

    abstract::A moderately effective oral progestogen contraceptive, R-2323 (13beta-ethyl-17alpha-ethynyl-17-hydroxy-gona-4,9,11-trien,3-one), was administered weekly in doses of 2.5 mg and 5 mg to 5 subjects each for 8 weeks. In 2 of the 10 treatment cycles of 2.5 mg and 4 of the 10 treatment cycles of 5 mg, progesterone levels i...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/0010-7824(74)90071-7

    authors: Tredway DR,Mishell DR Jr

    更新日期:1974-08-01 00:00:00

  • Impact of tubal ligation on ovarian reserve as measured by anti-Müllerian hormone levels: a prospective cohort study.

    abstract:BACKGROUND:Tubal ligation (TL) is considered a very efficient contraceptive method. However, some patients complain of a variety of postoperative symptoms. The objective of this study was to investigate whether ovarian reserve may change after tubal ligation. STUDY DESIGN:This was a prospective cohort study of 80 fert...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2012.09.021

    authors: Silva AL,Ré Cd,Dietrich C,Fuhrmeister IP,Pimentel A,Corleta HV

    更新日期:2013-12-01 00:00:00

  • Effectiveness of a theory-based postpartum sexual health education program on women's contraceptive use: a randomized controlled trial.

    abstract:BACKGROUND:The aim of this study was to evaluate the effectiveness of a refined theory-based Interactive Postpartum Sexual Health Education Program to enhance postpartum women's effective contraceptive behavior. STUDY DESIGN:Participants (N=250) were randomized to three groups. Experimental Group A received our interv...

    journal_title:Contraception

    pub_type: 杂志文章,随机对照试验

    doi:10.1016/j.contraception.2010.11.008

    authors: Lee JT,Tsai JL,Tsou TS,Chen MC

    更新日期:2011-07-01 00:00:00

  • Time-controlled injectable occlusion of the vas deferens.

    abstract::An injectable method of obtaining vas deferens occlusion is presented. The agent used is styrene maleic anhydride (SMA) with dimethyl sulphoxide as the solvent. The special feature of the approach is that after a period of time, spermatozoa passage is spontaneously reestablished. By varying the dose of SMA administere...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/0010-7824(90)90073-5

    authors: Guha SK,Anand S,Ansari S,Farooq A,Sharma DN

    更新日期:1990-03-01 00:00:00

  • Medications to ease intrauterine device insertion: a systematic review.

    abstract:BACKGROUND:Potential barriers to intrauterine device (IUD) use include provider concern about difficult insertion, particularly for nulliparous women. OBJECTIVE:This study aims to evaluate the evidence on the effectiveness of medications to ease IUD insertion on provider outcomes (i.e., ease of insertion, need for adj...

    journal_title:Contraception

    pub_type: 杂志文章,评审

    doi:10.1016/j.contraception.2016.06.014

    authors: Zapata LB,Jatlaoui TC,Marchbanks PA,Curtis KM

    更新日期:2016-12-01 00:00:00

  • A comparison of contraceptive procurement pre- and post-benefit change.

    abstract:BACKGROUND:In 2002, the Kaiser Foundation Health Plan in California changed its coverage policy to include 100% universal coverage for the most effective forms of contraception and for emergency contraceptive pills (ECPs). This study sought to evaluate whether removing the cost of contraception as a potential barrier t...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2007.07.006

    authors: Postlethwaite D,Trussell J,Zoolakis A,Shabear R,Petitti D

    更新日期:2007-11-01 00:00:00

  • Objections to tubal sterilization: what reversibility can and cannot overcome.

    abstract::In a study of 1074 women, 696 and 338 subjects would not seriously consider permanent and hypothetically reversible sterilization, respectively; they were asked to explain their feelings. The reason accounting for most objections to permanent sterilization (65%) was irreversibility and of the subjects who would not co...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/s0010-7824(80)80001-1

    authors: Shain RN

    更新日期:1980-09-01 00:00:00

  • A pharmacokinetic and pharmacodynamic study of a 'visiting pill' containing norethisterone.

    abstract::The pharmacokinetics and pharmacodynamic effects of two doses of norethisterone (5mg and 3mg) used as a 'visiting pill' were investigated. There were no significant differences in the pharmacokinetics of the two doses except for the peak concentration achieved and the bioavailability as assessed by the area under the ...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/0010-7824(86)90008-9

    authors: Song S,Chen JK,Yang PJ,Cheng DH,Liu WY,Fotherby K

    更新日期:1986-09-01 00:00:00

  • Phase I prehysterectomy studies of the transcervical administration of quinacrine pellets.

    abstract::To determine the safety of transcervical administration of quinacrine pellets as a method of voluntary female sterilization, three noncomparative Phase I clinical trials of the administration of 250 mg quinacrine were carried out in 21 women who were scheduled to undergo hysterectomy 24 h or one month later. Detailed ...

    journal_title:Contraception

    pub_type: 临床试验,杂志文章

    doi:10.1016/s0010-7824(96)00174-6

    authors: Laufe LE,Sokal DC,Cole LP,Shoupe D,Schenken RS

    更新日期:1996-09-01 00:00:00

  • Clinical trials in male hormonal contraception.

    abstract::Research has established the principle of hormonal male contraception based on suppression of gonadotropins and spermatogenesis. All hormonal male contraceptives use testosterone, but only in East Asian men can testosterone alone suppress spermatogenesis to a level compatible with contraceptive protection. In Caucasia...

    journal_title:Contraception

    pub_type: 杂志文章,评审

    doi:10.1016/j.contraception.2010.03.020

    authors: Nieschlag E

    更新日期:2010-11-01 00:00:00

  • Medical conditions, pregnancy perspectives and contraceptive decision-making among young people: an exploratory, qualitative analysis.

    abstract:OBJECTIVE:To explore perspectives on family planning among young people who perceive they are infertile or will have difficulty carrying a pregnancy to term owing to medical conditions or procedures. METHODS:This exploratory analysis examined pregnancy plans and contraceptive behavior among 12 young adults with a diag...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2019.03.046

    authors: Gomez AM,Arteaga S,Ingraham N,Arcara J

    更新日期:2019-07-01 00:00:00

  • Reference value of semen quality in Chinese young men.

    abstract::The purpose of the study was to evaluate semen quality in young Chinese men and to establish reference values. Normal healthy young men from seven geographical areas were enrolled. The study showed that the mean sperm volume was 2.61 mL, and mean percent of sperm with forward progression was 59.89, while median of sem...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/s0010-7824(02)00281-0

    authors: Junqing W,Qiuying Y,Jianguo T,Wei Y,Liwei B,Yuxian L,Yumei Z,Kangshou Y,Weiqun L,Lu C,Ersheng G

    更新日期:2002-05-01 00:00:00

  • Pilot study on the use of sublingual misoprostol in termination of pregnancy up to 7 weeks gestation.

    abstract:BACKGROUND:This study was conducted to assess the efficacy and incidence of side effects of a regimen of repeated doses of 400 microg sublingual misoprostol for termination of pregnancy of <7 weeks gestation. METHOD:Fifty women were given 400 microg sublingual misoprostol every 3 h for three doses. Two additional dose...

    journal_title:Contraception

    pub_type: 临床试验,杂志文章

    doi:10.1016/s0010-7824(03)00134-3

    authors: Cheung W,Tang OS,Lee SW,Ho PC

    更新日期:2003-08-01 00:00:00

  • The effects of gossypol on nuclear protein in rat testes. II. The synthesis of histones and testis-specific proteins after gossypol treatment.

    abstract::This communication is to report the effects of gossypol on the synthesis of chromosomal basic proteins in the spermiogenic cells. A double-labelling experiment has been performed. The control rats received 14C-arginine, whereas the gossypol-treated rats received a 3H-arginine injection. An equal volume of the tissues ...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/0010-7824(88)90031-5

    authors: Teng CS,Fei RR

    更新日期:1988-03-01 00:00:00

  • Relationship of intraamniotic digoxin to fetal demise.

    abstract:BACKGROUND:Induced fetal demise by intraamniotic injection of digoxin is an alternative to methods using intracardiac or umbilical vein injection. This study was designed to evaluate the effectiveness of intraamniotic injection and the timing of fetal demise after injection. STUDY DESIGN:Twenty-two women had ultrasoni...

    journal_title:Contraception

    pub_type: 临床试验,杂志文章

    doi:10.1016/j.contraception.2009.12.001

    authors: Borgatta L,Betstadt SJ,Reed A,Feng KT

    更新日期:2010-04-01 00:00:00

  • Comparative pharmacokinetic estimates of drospirenone alone and in combination with ethinyl estradiol after single and repeated oral administration in healthy females.

    abstract:OBJECTIVE:To determine the pharmacokinetics (PK) of drospirenone (DRSP), alone versus in combination with ethinyl estradiol (EE), after single and repeated administration. STUDY DESIGN:We conducted a single-centre, open-label, crossover, 2-treatment, 2-period, 2-sequence study in which non-micronized DRSP 4 mg or a co...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2019.10.005

    authors: Richter WH,Koytchev R,Kirkov V,Merki G,Colli E,Regidor PA

    更新日期:2020-02-01 00:00:00

  • Multicenter clinical trial on the efficacy and acceptability of a single contraceptive implant of nomegestrol acetate, Uniplant.

    abstract::Uniplant, a single Silastic implant containing nomegestrol acetate, provides contraceptive efficacy for one year. Uniplant use for one year was studied in 1,803 healthy women of reproductive age, enrolled from 10 centers in 9 countries, after informed consent. Implants were placed subdermally either in the upper arm o...

    journal_title:Contraception

    pub_type: 临床试验,杂志文章,多中心研究

    doi:10.1016/0010-7824(95)00263-4

    authors: Coutinho EM,de Souza JC,Athayde C,Barbosa IC,Alvarez F,Brache V,Gu ZP,Emuveyan EE,Adekunle AO,Devoto L,Shaaban MM,Salem HT,Affandi B,de Acosta OM,Mati J,Ladipo OA

    更新日期:1996-02-01 00:00:00

  • Contraceptive practices of female physicians.

    abstract::To evaluate a potential bias between methods of birth control used and prescribed by physicians, we surveyed sexually active female physicians in regards to their own methods of birth control. When the contraceptive practices of female physicians are compared to those of the general population, no difference in use of...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/s0010-7824(86)80001-4

    authors: Zbella EA,Vermesh M,Gleicher N

    更新日期:1986-05-01 00:00:00

  • Developing future leaders in reproductive health through a scholarly concentration for medical students.

    abstract:OBJECTIVES:To evaluate the impact of a scholarly concentration for medical students, which aims to develop students' research, clinical and advocacy skills to promote women's reproductive health. STUDY DESIGN:Scholarly concentration programs provide opportunities to engage in scholarship beyond the traditional medical...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/j.contraception.2014.07.005

    authors: Nothnagle M,Radlinski H,Magee SR,Allen RH

    更新日期:2014-11-01 00:00:00

  • Preoperative cervical priming by intracervical application of a new sulprostone gel.

    abstract::In a prospective, randomised dose-finding study involving 60 women scheduled for termination of 1st trimester pregnancy, 25 micrograms, 50 micrograms or 100 micrograms of a sulprostone gel with a constant injection volume of 2.5 ml were applied intracervically 6-8 hours before curettage. The gelatinising agent was Plu...

    journal_title:Contraception

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1016/0010-7824(85)90091-5

    authors: Rath W,Dennemark N,Gödicke HD

    更新日期:1985-03-01 00:00:00

  • Long-term sequelae of tolnidamine on male reproduction and general body metabolism in rabbits.

    abstract::The long-term effects of tolnidamine on male reproduction and general body metabolism were studied in rabbits (Oryctolagus cuniculus). The study was divided into three groups of 10 animals each. The first group (A) received vehicle alone to serve as controls. The second and third groups (B and C) of animals were admin...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/s0010-7824(98)00031-6

    authors: Ansari AS,Kumar Y,Srivastava S,Lohiya NK

    更新日期:1998-04-01 00:00:00

  • Effects of switching from oral to transdermal or transvaginal contraception on markers of thrombosis.

    abstract:BACKGROUND:The study was conducted to determine the impact of switching from oral to transdermal patch or vaginal ring contraception on biomarkers of thrombosis. STUDY DESIGN:Current healthy oral contraceptive (OC) users were randomized to switch to either a contraceptive ring (CR) or patch (CP) and underwent phleboto...

    journal_title:Contraception

    pub_type: 杂志文章,随机对照试验

    doi:10.1016/j.contraception.2008.07.004

    authors: Jensen JT,Burke AE,Barnhart KT,Tillotson C,Messerle-Forbes M,Peters D

    更新日期:2008-12-01 00:00:00

  • Observations of scanning electron microscopy detected abnormalities of non-lubricated latex condoms.

    abstract::To describe surface abnormalities found by scanning electron microscopy of non-lubricated latex condoms, thirty samples of 15 condoms were photographed at low (26-94x), medium (240-940x) and high (> 1000x) magnification. Each sample was initially scanned at low magnification to determine the presence and location of s...

    journal_title:Contraception

    pub_type: 杂志文章

    doi:10.1016/0010-7824(95)00259-6

    authors: Rosenzweig BA,Even A,Budnick LE

    更新日期:1996-01-01 00:00:00

  • Cervical preparation for second-trimester surgical abortion prior to 20 weeks' gestation: SFP Guideline #2013-4.

    abstract::For a dilation and evacuation (D&E) procedure, the cervix must be dilated sufficiently to allow passage of operative instruments and products of conception without injuring the uterus or cervical canal. Preoperative preparation of the cervix reduces the risk of cervical laceration and uterine perforation. The cervix m...

    journal_title:Contraception

    pub_type: 杂志文章,实务指引

    doi:10.1016/j.contraception.2013.11.001

    authors: Fox MC,Krajewski CM

    更新日期:2014-02-01 00:00:00