Background: The aim of this study was to investigate the effects of administration of a GnRH analogue to cows with ovarian follicular cysts on plasma renin concentrations and ovarian vascularization. Materials and Methods: This study was performed with 60 Friesian cows, which were diagnosed with follicular cysts, and randomly allocated into two groups: group A (treatment; n = 30) received 2 ml ...

OBJECTIVES Subjective ultrasonographic assessment is currently considered to be the best method of differentiation between various types of ovarian tumors. The aim of the study was to evaluate selected ultrasonographic features and CA125 levels of hormonally active ovarian tumors. MATERIAL AND METHODS A total of 1135 women with ovarian tumors were diagnosed between 2006 and 2014 at the Divisi...

Vasohibin-1 (VASH1) is a negative feedback regulator of angiogenesis, the first to be discovered, and was identified in vascular endothelial growth factor (VEGF)-stimulated vascular endothelial cells. Vasohibin-1 inhibits abnormal vascularization induced by various angiogenic factors including fibroblast growth factor and platelet-derived growth factor (PDGF), in addition to VEGF. By focusing o...

BACKGROUND Angiogenesis has been found to be among the most important factors in the pathogenesis of endometriosis. The formation of new blood vessels is critical for the survival of newly implanted endometriotic foci. The use of 3-D power Doppler allows for the demonstration of the dynamic vascular changes that occur during the process of in vitro fertilization (IVF). We aimed to evaluate the ...

BACKGROUND The aim of this investigation was to correlate ovarian endometrioma vascularization with the presence of pelvic pain. METHODS The presence of blood flow, peak systolic velocity (PSV, cm/s) and lowest pulsatility index (PI), assessed by transvaginal colour Doppler ultrasonography and CA-125 plasma concentrations, were retrospectively analysed in 74 patients who had undergone operati...

Background: It is assumed in polycystic ovary syndrome (PCOS) that follicular development, maturation, ovulation and implantation are impaired due to hormonal imbalance and vascular impairment of the ovarian and uterine vasculatures. The mechanism of action of laparoscopic ovarian drilling (LOD) is largely unexplained. To date, only limited studies have been conducted utilizing 3D ultrasonograp...

OBJECTIVE The aim of this prospective study was to investigate whether ovarian blood flow is related to embryological parameters and whether it could be a predictor of outcomes of IVF/ICSI. METHODS Eighty infertile women underwent ovarian stimulation with gonadotrophins after a long protocol with GnRH agonists. The ovarian volume (OV), number of follicles (NF) and follicular volume (FV) of al...

vascularization of the follicle may play a role in its maturation and aspirin seems to increase this vascularization.in this investigation we have studied the effects of low-dose aspirin on ovarian and uterine response, implantation and pregnancy rates in patients undergoing intracytoplasmic sperm injection (icsi). this prospective semirandomized, double-blind, placebo-controlled study was unde...

BACKGROUND/AIM Any organs functioning directly depends on vascularization. It applies also to the uterus and ovary which go through changes of vascularization during a menstruation cycle. The aim of this investigation was to determine differences in intrauterine and ovarian stromal arterioral blood flow on basal ultrasound examination (day 2-4) between spontaneous ovulatory and anovulatory cycl...

Background: The aim of this study was to evaluate the efficacy of a vitrification protocol developed by our group to cryopreserve ovarian tissue. For this, we used ovaries from non-human primates in order to have an animal model close to the clinical setting. Materials and Methods: Ovarian biopsies from five adult baboons were vitrified, warmed and autografted. After five months, follicle survi...