Search Results
Results 251 - 300 of 947
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Acosta T J - - 2003
Haemodynamic changes are involved in the cyclic remodelling of ovarian tissue that occurs during final follicular growth, ovulation and new corpus luteum development. The aim of this study was to characterize the real-time changes in the blood flow within the follicle wall associated with the LH surge, ovulation and corpus ...
Wu M-H - - 2003
OBJECTIVE: The aims of this retrospective study were to investigate whether the quantification of ovarian stromal blood flow and/or leptin concentration are predictive of in vitro fertilization (IVF) outcomes in women after laparoscopic ovarian cystectomy for large endometriomas. METHODS: Twenty-two women undergoing IVF after laparoscopic surgery for ovarian endometriomas (> ...
Waseda T - - 2003
We have analyzed ovarian hemodynamics immediately after human chorionic gonadotropin (hCG) administration in patients treated by clomiphene-hCG and human menopausal gonadotropin-hCG. This study involved 40 infertile women who signed consents to participate in this study. After intramuscular injection of 10000 IU hCG, the change of ovarian arterial blood flow (BF) ...
Amin Ahmed F - - 2003
OBJECTIVE: To study the serum levels and correlation of vascular endothelial growth factor (VEGF), insulin-like growth factor 1 (IGF-1), hormonal profile, and Doppler blood flow changes within the ovarian stroma before and after laparoscopic ovarian drilling (LOD) in women with clomiphene-resistant polycystic ovary syndrome (PCOS). DESIGN: Prospective controlled study. SETTING: ...
Mitsube K - - 2003
The aim of the present study was to examine the roles of the angiotensin II receptor subtypes, AT(1) and AT(2), in ovulation, and to evaluate the contribution of angiotensin II-mediated pathways in regulation of ovarian blood flow. The AT(1)-specific antagonist, losartan, was administered alone or in combination with the AT(2)-specific ...
Briegel H - - 2003
Vitellogenesis in Aedes aegypti of uniform body size was followed at 27 degrees C in narrow time intervals throughout their first reproductive cycle by measuring the length, diameter, and volume of follicles and oocytes, the latter as an expression of the yolk mass (vitellus). Independent of all experimental conditions, a ...
Szabó István - - 2003
OBJECTIVE: The aim of our study was to determine the effect of abnormal implantation on uterine circulation and to evaluate whether the assessment of uterinal blood flow can provide additional information for the diagnosis of tubal pregnancies. METHODS: Forty-nine patients with ectopic pregnancy were examined by transvaginal color Doppler immediately ...
Isaksson R - - 2003
OBJECTIVE: To evaluate the possible difference in uterine and spiral artery impedance to blood flow among women with unexplained and tubal infertility during spontaneous and gonadotropin-stimulated cycles. METHODS: We prospectively compared uterine and spiral artery pulsatility index and peak systolic velocity in a longitudinal study in women with either unexplained ...
Ojha Kamal - - 2003
OBJECTIVE: Effect of the side of ovulation on uterine, ovarian, and follicular blood flow parameters and various hormone levels. DESIGN: Prospective, observational study. SETTING: Fertility Clinic, St. George's Hospital. PATIENT(S): Nineteen women with regular menstrual cycles. Pulsed Doppler measurements and serum hormonal concentrations during midfollicular, periovulatory, and midluteal phase for ...
Urban Remigiusz - - 2003
OBJECTIVE: To compare the effect of misoprostol (PGE(1)) versus dinoprostone (PGE(2)) on blood flow in uteroplacental circulation during labor induction. STUDY DESIGN: Eighty-four women with indications for induction of labor were assigned to receive either misoprostol 50 microg per vagina every 4 h as needed or 0.5 mg doses of ...
Testa Antonia Carla - - 2003
BACKGROUND: To correlate resistance indices (RI) of vessels detected by transvaginal Doppler velocimetry to the proliferative fraction (PF) calculated by flow cytometry in uterine myomas. A prospective study was carried out on patients scheduled for surgery because of symptomatic uterine myomas. A group of 26 myomas characterized by the presence ...
Markiewicz Włodzimierz - - 2003
Neuropeptide Y (NPY), an amidated peptide composed of 36 amino acid residues, is the most widely distributed neuropeptide that performs a broad spectrum of physiological functions in both the central and peripheral nervous systems. Among numerous other actions, this peptide is involved, at the periphery, in the neural regulation of ...
Moore Lorna G - - 2003
High altitude reduces birth weights, averaging a 100-g fall per 1000 m elevation gain, as the result of restriction of third trimester fetal growth. Intrauterine growth restriction (IUGR) raises neonatal or infant mortality at low as well as at high altitude, but existing studies are unclear as to whether IUGR-specific ...
Pellizzari P - - 2002
BACKGROUND: This is a clinically-controlled study designed to investigate uterine and ovarian blood flow in patients with hypoestrogenic amenorrhoea. METHODS: Twelve women with hypoestrogenic amenorrhoea and 13 eumenorrhoeic subjects (controls) were enrolled. Colour and pulsed Doppler was used to visualize the uterine and ovarian arteries and the blood vessels within ...
Zoma Willie D - - 2002
OBJECTIVE: Hormone replacement therapy has been implicated in the increased incidence of breast cancer, although selective estrogen receptor modulators have been shown to be effective in the prevention of breast cancer. Breast cancers are associated with increased mammary blood flow compared to benign breast lesions. However, few studies have examined ...
Hodgson David S - - 2002
OBJECTIVE: To determine effects of sedation achieved by xylazine (XYL) or acepromazine (ACE) on cardiopulmonary function and uterine blood flow in cows in late gestation. ANIMALS: 8 cows between 219 and 241 days of gestation. PROCEDURE: Doses of ACE (0.02 mg/kg) or XYL (0.04 mg/kg) were administered IV. Measurements were ...
Järvelä I Y - - 2002
To evaluate the characteristics of polycystic compared to normal ovaries using three-dimensional (3-D) power Doppler ultrasonography. We recruited 42 volunteers, all of whom were commencing IVF treatment. Each patient was examined in the cycle preceeding the start of drug therapy during the late follicular phase. If eight or more subcapsular ...
Zalel Y - - 2002
BACKGROUND: We aimed to evaluate the effect of the levonorgestrel-releasing intrauterine system (LNG-IUS) on the uterine vasculature and the endometrium. METHODS: The study was a prospective controlled study evaluating the local effects of LNG-IUS compared with the copper intrauterine device (IUD). Forty-seven women carrying LNG-IUS (group A) were compared with ...
Altundag Mustafa - - 2002
OBJECTIVE: To determine the value of ovarian stromal artery Doppler indices in the prediction of ovarian response in in vitro fertilization-embryo transfer (IVF-ET) cycles. STUDY DESIGN: Forty-five cases were involved in the study. Following controlled ovarian hyperstimulation and detection of at least three follicles > 17 mm in diameter by ...
Löfman C - - 2002
OBJECTIVE: We developed an in vivo model to enable observation of dynamic changes in morphology, vascularity, and motility of the rat adnexa. METHODS: Immature Sprague-Dawley rats (n = 16) were primed with equine chorionic gonadotrophin (eCG;15 IU) followed by human chorionic gonadotrophin (hCG; 15 IU) 48 hours later to induce ...
Järvelä I Y - - 2002
OBJECTIVE: To determine ovarian blood flow characteristics using three-dimensional power Doppler ultrasound. METHODS: We examined 30 patients (30 cycles) prior to the start of their in vitro fertilization treatment in the late follicular phase using three-dimensional power Doppler ultrasound. The volume, vascularization index, flow index, vascularization flow index, mean grayness ...
Takeuchi Kyousuke - - 2002
OBJECTIVE: To evaluate the role of transarterial embolization followed by hysteroscopic removal of a placental polyp with preservation of reproductive capacity. STUDY DESIGN: Three patients with placental polyps with abundant blood flow, suspected on ultrasonography with color Doppler imaging and on magnetic resonance imaging, were studied. They underwent transarterial embolization ...
Nakai Akihito - - 2002
Endometrial perfusions were measured by Doppler ultrasound to evaluate the influence of spontaneous menstrual cycles and to study the effect of clomiphene citrate. Flow waveforms in right and left uterine arteries were obtained by using transvaginal color Doppler ultrasonography in infertile women with 60 spontaneous menstrual cycles and 37 clomiphene ...
Chien Li-Wei - - 2002
OBJECTIVE: To investigate the correlation of blood flow detected by color Doppler sonography in the endometrial-subendometrial unit with pregnancy outcome of IVF-ET treatments. DESIGN: Prospective clinical study. SETTING: University setting. PATIENT(S): Six hundred twenty-three patients selected prospectively on the day of ET. INTERVENTION(S): Transvaginal ultrasound examination was performed before ET. ...
Ezra Yossef - - 2002
OBJECTIVE: To assess the safety and efficacy of ritodrine and nitroglycerin for uterine relaxation during cesarean section with a breech-presenting fetus, performed under nongeneral anesthesia. STUDY DESIGN: A retrospective review of all breech singletons delivered by cesarean section under epidural anaesthesia in a two-year period. The study groups consisted of ...
Stefańczyk-Krzymowska Stanisława - - 2002
Arteries, veins, capillaries and lymphatic vessels situated in the mesovarium and mesosalpinx of domestic animal species (pig, cow, sheep) form the periovarian vascular complex. Particular components of the periovarian vascular complex interact functionally and morphologically creating a specific environment for numerous physiological processes. The complex plays an essential role in ...
Krzymowski Tadeusz - - 2002
The paper presents a new theory on the physiological mechanism of initiation of luteolysis, function of endometrial cells and protection of corpus luteum. This theory is based on previous studies published by the authors and their coworkers on the retrograde transfer of PGF2alpha in the uterine broad ligament vasculature during ...
Bollwei H - - 2002
Uterine and ovarian blood flow was investigated in four mares during two consecutive estrous cycles using transrectal color Doppler sonography. The uterine and ovarian arteries of both sides were scanned to obtain waves of blood flow velocity. The pulsatility index (PI) reflected blood flow. There were significant time trends in ...
Alouini S - - 2002
OBJECTIVE: The aim of our study was to investigate early placental circulation development and spiral and uterine artery flows in normal 1st-trimester pregnancies. METHODS: A prospective study of intervillous and spiral artery flows in 49 normal pregnancies (5-10 weeks of amenorrhea) was performed. Transvaginal color and pulsed-wave Doppler techniques (6-MHz ...
Bollwein H - - 2002
Transrectal Doppler ultrasound was used for the noninvasive investigation of uterine blood flow in three cows during pregnancy. The uterine arteries ipsi and contralateral to the conceptus were scanned monthly. Blood flow was reflected by the following parameters: resistance index (RI), time-averaged maximum velocity (TAMV), diameter of the vessel (D) ...
Stefanczyk-Krzymowska S - - 2002
The aim of the present study was to investigate the mechanism of the retrograde transfer of ovarian steroid hormones from the ovarian lymphatic and venous effluent to the arterial blood supplying the ovary. In the first experiment, reproductive organs were collected from gilts in the luteal (n = 10) and ...
Kupesic S - - 2002
BACKGROUND: Our study was designed to evaluate whether ovarian antral follicle number, ovarian volume, stromal area and ovarian stromal blood flow are predictive of ovarian response and IVF outcome. A total of 56 women with normal basal serum FSH concentrations who had no history of ovarian surgery, no ovarian and/or ...
Pan Hsien-An - - 2002
This was a prospective comparative clinical study to test the hypothesis that the flow intensity of the ovarian stroma decreases in the order of the aging process. A total of 100 consecutive women who came to our outpatient clinic for Pap smear examination were recruited. They were divided into three ...
Lipton Jack W - - 2002
We have previously demonstrated that maternal cocaine injections result in a gradient of fetal brain cocaine levels that decrease as a function of the fetuses' proximity to the ovaries at embryonic (E) day 15. Our prior data suggest that cocaine-induced vasoconstriction may (1) limit cocaine's entry into the brain and ...
Lindsey A C - - 2002
The objective of this experiment was to determine the effects of flow cytometric sorting and freezing on stallion sperm fertility. A 2 x 2 factorial design was used to delineate effects of flow sorting and freezing spermatozoa. Oestrus was synchronised (July-August) in 41 mares by administering 10 ml altrenogest (2.2 ...
Kim Seok Hyun - - 2002
Our purpose was to verify whether the blood flow impedance of the ovarian stromal artery in transvaginal color Doppler ultrasonography can predict the in vitro fertilization and embryo transfer (IVF-ET) outcomes. Transvaginal color Doppler ultrasonographic examinations were performed in 99 patients undergoing controlled ovarian hyperstimulation (COH) for IVF-ET. The pulsatility ...
Acosta Tomas J - - 2002
One of the postulated main luteolytic actions of prostaglandin (PG) F(2 alpha) is to decrease ovarian blood flow. However, before Day 5 of the normal cycle, the corpus luteum (CL) is refractory to the luteolytic action of PGF(2 alpha). Therefore, we aimed to determine in detail the real-time changes in ...
McLucas Bruce - - 2002
OBJECTIVE: To determine whether Doppler flow measurements are useful in predicting variables associated with uterine fibroid embolization, including shrinkage of the uterus and myomas, adenomyosis, and uterine fibroid embolization failure. METHODS: A group of 227 patients with menorrhagia or postmenopausal bleeding secondary to uterine myomas were evaluated with uterine artery ...
Yen Yuan-Kuei - - 2002
Degenerative changes occur relatively frequently in uterine leiomyomas. Morphologic changes such as necrosis, hyalinization, and alterations in cellularity are described after uterine artery embolization. A modified method to interrupt the uterine blood supply is laparoscopic bipolar coagulation of uterine vessels (LBCUV). Although the success rate is good, occasional patients require ...
Amiridis G S - - 2002
We investigated the prediction of the ovarian response to superovulation using progesterone (P4) determination in Chios ewes. During the estrus period. estrus synchronization and multiple ovulations were induced in 100 non-pregnant, non-lactating Chios ewes by a combination of FGA-impregnated intravaginal sponges and 8.8 mg of ovine FSH. Laparoscopic insemination was ...
Hershkovitz R - - 2002
OBJECTIVE: To evaluate the role of overdistended uterus on the uterine artery (UA) blood flow velocimetry by comparing UA Doppler in patients with idiopathic hydramnios to patients with normal amniotic fluid (AF) volume. METHODS: Pulsatility index (PI) of both UAs was determined prospectively between 26 and 41 weeks of gestation ...
Andronowska A - - 2002
Cryostat sections of arterial and venous vessels from various size branches of the uterine artery and utero-ovarian vein of the pig mesometrium in different phases of the estrous cycle were stained immunohistochemically for endothelial nitric oxide synthase (eNOS), endothelin-1 (ET-1) and endothelin B receptor (ETB-R) using ABC method. Immunoreactivity was ...
Nappi Rossella E - - 2002
The aim of the present study was to measure clitoral artery blood flow throughout the menstrual cycle and in oral contraceptive users. We recruited healthy young women (n = 19, age range: 21-28 years; body-mass index: 18-23 kg/m2) without sexual dysfunction (Female Sexual Functioning Index criteria; Rosen et al., 2000). ...
Bulent Tiras M - - 2001
OBJECTIVE: To investigate the changes in serum ovarian hormone levels and ovarian artery blood flow rate by Doppler ultrasonography following laparoscopic tubal sterilization. METHODS: Laparoscopic tubal sterilization have been performed on 13 voluntary subjects between the sixth and eighth days of the menstrual cycle. Serum ovarian hormone levels and ovarian ...
Mousa H A - - 2001
Postpartum haemorrhage remains in the top five causes of maternal deaths in both developed and developing countries. Persistent blood loss of more than 1000 ml should prompt predetermined measures to achieve resuscitation and haemostasis. A protocol including guidelines is given and volume replacement is discussed. The range of medical and ...
Robins J C - - 2001
Abnormal uterine bleeding (AUB) is one of the most common disorders encountered by the gynecologist. Several drugs have been demonstrated to decrease menstrual bleeding in patients with menorrhagia. Non-steroidal anti-inflammatory drugs will decrease bleeding by 30% to 50%. Oral contraceptives may be useful to stop acute bleeding and will decrease ...
Eisenhardt S - - 2001
Musk xylene (MX), musk ketone (MK), musk ambrette, musk moskene, and musk tibetene are synthetic fragrances. Between 1994 and 1996 these five nitromusk compounds (NMCs) were tested in the blood of 152 women who consulted the Endocrinological Department of the University Hospital of Obstetrics and Gynecology, Heidelberg, Germany, because of ...
Rommel S A - - 2001
The reproductive organs of Florida manatees (Trichechus manatus latirostris) are surrounded by thermogenic locomotory muscles and insulating fat. Manatees are reported to maintain core body temperatures of 35.6 degrees -36.4 degrees C, temperatures known to interfere with production and maturation of viable sperm in terrestrial mammals. We describe two novel ...
Guvenal T - - 2001
Massive ovarian edema is a rare cause of ovarian enlargement in young women. We report the case of a 20-year-old woman with unilateral massive ovarian edema with findings on ultrasound of an enlarged policystic ovary and pedicle arterial and venous blood flow observed with color and pulsed wave Doppler examination. ...
Mercé L T - - 2001
OBJECTIVE: To evaluate arterial and venous intraovarian blood flow in follicle stimulating hormone-stimulated cycles. SUBJECTS AND METHODS: This was a prospective study of 76 follicle stimulating hormone-stimulated cycles carried out in 39 infertile patients who were included in a timed intercourse or intrauterine insemination program in a referral center for ...
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