Abstract:
:The relationship between contraction changes and cAMP production under long-term application of ritodrine was investigated using longitudinal muscle strips of pregnant (Day 21) rat uterus. Cellular cAMP gradually increased up to 20 min, then decreased to the control level and fluctuated after 90 min in the presence of 1.5 x 10(-7) M ritodrine. When the dose was raised to 3.1 x 10(-4) M, cAMP contents markedly increased. However, it then decreased after 30 min and reached the control level after 180 min. To clarify the actual relationship between the changes in spontaneous contraction and cAMP contents of the same muscle strips, the strips were obtained during control contraction, suppression by 1.5 x 10(-7) M ritodrine and reactivation after suppression in the presence of the drug. Consequently, the cAMP content of reactivated muscle was significantly lower than that of suppressed muscle (p less than 0.01), however it was still higher than the control (p less than 0.05). It is speculated that the reactivation of spontaneous contractions might not depend solely on the cellular cAMP level, and that another activating mechanism, such as changes in ion permeability, might be involved in this type of desensitization phenomenon.
journal_name
Gynecol Obstet Investjournal_title
Gynecologic and obstetric investigationauthors
Kawarabayashi T,Tsukamoto T,Hamasaki Y,Kaneko Y,Ikeda M,Sugimori Hdoi
10.1159/000293119keywords:
subject
Has Abstractpub_date
1991-01-01 00:00:00pages
130-5issue
3eissn
0378-7346issn
1423-002Xjournal_volume
31pub_type
杂志文章abstract:PURPOSE:To analyze the effects and potential benefits of a single midcycle dose of follicle-stimulating hormone (FSH) prior to human chorionic gonadotropin (hCG) administration during unstimulated in vitro fertilization (IVF) cycles. METHODS:Twenty-five cycles from 20 patients receiving 150 IU of FSH 42-44 h and 10,00...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000291825
更新日期:1997-01-01 00:00:00
abstract:OBJECTIVE:To compare embryo transfer (ET) technique based on catheter rotation during its withdrawal in cases with unexplained infertility in a prospective, randomized trial (NCT03097042). METHODS:Two hundred intracytoplasmic sperm injection (ICSI) patients undergoing ET with cleaving or blastocyst-stage fresh embryos...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章,随机对照试验
doi:10.1159/000489493
更新日期:2018-01-01 00:00:00
abstract:OBJECTIVE:To investigate the expression of T-cell immunoglobulin and mucin domain 3 (TIM-3) on peripheral T cells of cervical carcinoma patients. METHODS:Peripheral blood samples from 15 high-grade cervical squamous intraepithelial lesion (HSIL) patients, 24 cervical carcinoma patients, and 21 healthy controls were co...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000511440
更新日期:2020-12-04 00:00:00
abstract::Semistructured interviews were made among a random sample of applicants for abortion in Stockholm, when legal abortion on demand had been available in Sweden for 10 years. One hundred and twenty women were interviewed, 75 of them having their first abortion and 45 having a repeat abortion. The use of contraceptives wa...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000292572
更新日期:1994-01-01 00:00:00
abstract::Treatment of endometriosis with gonadotropin-releasing hormone agonists (GnRHa) is limited to 6 months because of possible adverse effects on bone metabolism. We designed a randomized, double-blind, placebo-controlled, prospective study of 27 patients with endometriosis who were given GnRHa with or without hormone add...
journal_title:Gynecologic and obstetric investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000010059
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVE:To study the association of umbilical cord presentation found on antenatal ultrasound and the incidence of cord prolapse in labor. STUDY DESIGN:We reviewed the antenatal records of all deliveries in the Mount Sinai Hospital in a 5-year period and conducted two separate retrospective studies. In the first stu...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000072323
更新日期:2003-01-01 00:00:00
abstract::Progesterone secretion of cultured human granulosa cells treated with LHRH or its analogues was measured. Granulosa cells were also stimulated with LH, FSH, cAMP or forskolin. No differences could be observed in the progesterone basal secretion of cultures treated with or without LHRH or its analogues and after the va...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000292765
更新日期:1992-01-01 00:00:00
abstract:AIMS:Vulvar cancer is a rare disease. In western European countries, the incidence is 1.2 cases per 100,000 women/year. The aim of this study was to analyze the management and disease-free survival (DFS) of vulvar cancer among European countries. METHODS:An international multicenter retrospective study including patie...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章,多中心研究
doi:10.1159/000452097
更新日期:2017-01-01 00:00:00
abstract::A small dermatan sulphate proteoglycan has been isolated from the human uterine cervix. The concentration of this proteoglycan has been shown to decrease during pregnancy. To study the mechanism behind this change fibroblasts from the human uterine cervix were established in culture. Their synthesis and secretion of p...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000299026
更新日期:1985-01-01 00:00:00
abstract::The patterns of plasma melatonin, gonadotropins, sex steroids and prolactin were studied in anovulatory infertile females undergoing ovulation induction with hMG/hCG. Melatonin levels were found to fluctuate during the menstrual cycle of these subjects with a nadir at mid-cycle and peak occurring at the early follicul...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000009977
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND/AIMS:To determine the clinicopathological characteristics and potentially associated outcomes in patients diagnosed with serous adenocarcinoma of the uterine cervix. METHODS:The records of surgically-treated patients with pathological stage pT1b-2b serous adenocarcinoma were reviewed. RESULTS:Of 12 patient...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章,评审
doi:10.1159/000329319
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND/AIMS:To assess the performance of colposcopists and correlate it with their experience when diagnosing cervical pathology by reviewing conventional colposcopy (CC) digital images and the Dynamic Spectral Imaging System (DySIS) cervical map. METHODS:Images from 50 women with normal and abnormal cervix collec...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000365087
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND/AIMS:A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) enzymes take part in extracellular matrix (ECM) remodeling which has been shown to contribute to the ovulation and follicular functions. We aimed to compare serum levels of ADAMTS-19 in patients with different fertility situations. ...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000490665
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Preeclampsia (PE) is associated with oxidative stress in the maternal circulation and placenta. This study aimed to determine if inhibition of lectin-like oxidized low-density lipoprotein receptor 1 (LOX-1) gives protection against oxidative stress-mediated trophoblast dysfunction. METHODS:Plasma and placen...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000370195
更新日期:2015-01-01 00:00:00
abstract::In 20 healthy pregnant women placental blood pool was estimated by means of placental scintigrams before, during and after infusion of either prostacyclin (PGI2) or placebo for 10 min to study the effect of PGI2 on the local regulation of uterine blood flow. There was no difference in the mean number of counts between...
journal_title:Gynecologic and obstetric investigation
pub_type: 临床试验,杂志文章
doi:10.1159/000299012
更新日期:1985-01-01 00:00:00
abstract::A suburethral sling procedure using a Mersilene mesh has been performed in 24 patients. Six patients had recurrent incontinence after an unsuccessful past operation. A postoperative follow-up was done for an average of 24 months. Twenty-three patients were free of symptoms, while only 1 patient had recurrent incontine...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000292521
更新日期:1994-01-01 00:00:00
abstract:INTRODUCTION:The role of defective fimbrio-ovarian relation in cases of unexplained infertility has not been extensively studied. The aim of the study was to assess the role of fimbrio-ovarian relation as an investigative modality in women with unexplained infertility. We also aimed to evaluate the efficacy of superovu...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000086004
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND/AIMS:To compare the efficacy and safety of trocar-site infiltration with lidocaine and no intervention for postoperative pain relief after diagnostic laparoscopy. METHODS:A randomized clinical trial of women with infertility scheduled for diagnostic laparoscopy without additional procedures in Life Institut...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章,随机对照试验
doi:10.1159/000490565
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the efficacy of depot medroxy progesterone acetate (DMPA) as a preparatory agent for endometrial resection. STUDY DESIGN:Endometrial resection was performed on 50 women for excessive uterine bleeding. The patients were randomly divided into 2 equal groups, with the first group receiving DMPA and ...
journal_title:Gynecologic and obstetric investigation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1159/000052969
更新日期:2001-01-01 00:00:00
abstract:AIM:To evaluate the clinical application of the new Hologic quantitative foetal fibronectin (qfFN) bedside test for the prediction of spontaneous preterm birth (sPTB) in patients with symptoms suggestive of spontaneous threatened preterm labour (sPTL). METHODS:A prospective observational study with 154 pregnant women ...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000480235
更新日期:2018-01-01 00:00:00
abstract::Uterine myoma leading to uremia in young women below 16 years of age is an extremely rare condition. On reviewing the literature we have not been able to find any case similar to the one described below. ...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293043
更新日期:1991-01-01 00:00:00
abstract::The long-term effects of valproic acid (VPA) on reproductive endocrine functions in women with epilepsy (WWE) were studied. Serum reproductive hormone concentrations, clinical findings and ovarian morphology were analyzed in 71 WWE who had been receiving antiepileptic drugs (AED) for a minimum of 2 years. Of the 71 WW...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000203537
更新日期:2009-01-01 00:00:00
abstract::Deep dyspareunia, often described as pain resulting from pelvic thrusting during sexual intercourse, is relatively common and has many causes. To date, feasible surgical interventions for deep dyspareunia are very rare. The two procedures which have been mentioned in the literature for the treatment of deep dyspareuni...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000087562
更新日期:2006-01-01 00:00:00
abstract::Mesh of absorbable polyglactin 910 instead of human tissues or nonabsorbable synthetic materials was utilized for retropubic sling procedures in 21 women with urinary stress incontinence. The patients have been observed for a period ranging from 4 to 14 months. 20 of them are continent while there was 1 relapse after ...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000299212
更新日期:1983-01-01 00:00:00
abstract::Two women, one 27 years old (case 1) and the other 20 years old (case 2), were evaluated due to right lower quadrant pain. The lactate dehydrogenase level was increased in case 1 and the dihydroepiandostrone level was increased in both cases. Preoperative transvaginal ultrasonography revealed solid masses, but the tum...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000053009
更新日期:2002-01-01 00:00:00
abstract::The crisis frequency of stress incontinence (SI) is known to be high among pregnant women. This preliminary study was performed to determine whether the diagnostic standard of the Q-tip test used in the diagnosis of SI in nonpregnant women is applicable to pregnant women. The Q-tip tests were performed regularly durin...
journal_title:Gynecologic and obstetric investigation
pub_type: 临床试验,杂志文章
doi:10.1159/000052900
更新日期:2001-01-01 00:00:00
abstract:AIMS:The study aimed to assess the efficacy of accelerating the process of coasting through adding gonadotropin releasing hormone (GnRH) antagonist (GnRH-ant) on the day of triggering of oocyte maturation without withholding the GnRH agonist (GnRHa) in women at risk for developing ovarian hyperstimulation syndrome (OHS...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000477297
更新日期:2018-01-01 00:00:00
abstract::The identification of immunoreactive beta-endorphin, beta-lipotropin and ACTH from extracts of human placentas by radioimmunoassay suggests a probable synthesis of these peptides in the placenta. In this study we investigated the presence of beta-endorphin and ACTH in placenta, amniotic membranes and umbilical cord us...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000299023
更新日期:1985-01-01 00:00:00
abstract::Cervico-oculo-acousticus syndrome is a very rare entity with only 21 cases described in the world literature. A study of a case of this syndrome with pregnancy is presented. This primigravida, in addition to the classical triad of the syndrome, had other dysmorphic features such as short stature (141 cm), and marked t...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000293115
更新日期:1991-01-01 00:00:00
abstract::Penis and testicle amputation, vaginoplasty, and clitoroplasty are procedures that help male-to-female transsexuals to accept their body and to increase psychosocial well-being. We describe a successful correction of prolapse of the neovagina with abdominovaginal sacropexy in a male-to-female transsexual who had under...
journal_title:Gynecologic and obstetric investigation
pub_type: 杂志文章
doi:10.1159/000064559
更新日期:2002-01-01 00:00:00