Aleksandar Ljubic
University of Belgrade
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Featured researches published by Aleksandar Ljubic.
Endocrine Research | 2012
Aleksandar Cetkovic; Dragana Miljic; Aleksandar Ljubic; Michael Patterson; Mohammad A. Ghatei; Jelena Stamenković; Marina Nikolic-Djurovic; Sandra Pekic; Mirjana Doknic; Andreja Glišić; Stephen R. Bloom; Vera Popovic
Background. The aim of this study was to prospectively evaluate plasma kisspeptin levels in 129 singleton pregnancies with diabetes [pregestational insulin-dependent diabetes mellitus (type 1) and gestational diabetes (GD)] and hypertensive disease [chronic hypertension (CH), gestational hypertension, and preeclampsia (PE)] as a potential marker of placental dysfunction and adverse perinatal outcome. Study design. Kisspeptin levels were evaluated in the first, second, and third trimesters in patients with type 1 diabetes (16 patients), H (22), and healthy control (25) and in the second and third trimesters in patients with GD (20), gestational hypertension (18), and PE (28). Maternal kisspeptin levels were correlated with pregnancy outcome, parameters of fetoplacental circulation, ultrasound-detected abnormalities of placental morphology, and placental weight at delivery. Results. In pregnancies with type 1 diabetes and H, mean kisspeptin levels were significantly lower compared with the control group (p < 0.001 in the first and second trimesters and p < 0.05 in the third trimester). Decreased plasma kisspeptin levels in the second and third trimesters were found in patients with GD (p < 0.001 in the second and third trimesters) and PE (p < 0.001 in the second trimester and p < 0.05 in the third trimester). In patients with PE and placental dysfunction, low kisspeptin levels in the third trimester were associated with adverse perinatal outcome. Conclusions. Our study demonstrates reduced kisspeptin levels in pregnancies with diabetes, H, PE, and placental dysfunction. In patients with PE and placental dysfunction, decreased kisspeptin levels were associated with adverse perinatal outcome. Larger studies are needed to investigate the role of kisspeptin as a potential marker of placental dysfunction and adverse perinatal outcome.
Vojnosanitetski Pregled | 2013
Sonja Pop-Trajkovic-Dinic; Aleksandar Ljubic; Vesna Kopitovic; Vladimir Antić; Snezana Stamenovic; Aleksandra Trninic-Pjevic
BACKGROUND/AIM Abnormal uterine bleeding is the most common problem which brings woman to the gynecologist during the postmenopausal period. The aim of this study was to define the significance of hysteroscopy as a diagnostic procedure for the evaluation of patients with postmenopausal bleeding, as well as to define it as a surgical procedure by which the cause of bleeding can be treated in most cases in the same sitting. METHODS The study involved 148 female patients referred to the Clinic for Gynecology and Obstetrics in Nis for postmenopausal bleeding in the period of 12 months. Hysteroscopy with endometrial biopsy were performed in all the patients. Biopsy materials were directed to histological examination, and the hysteroscopic and histological findings were compared afterwards. Polyps and submucous miomas were hysteroscopically removed in the same sitting and also directed to histological examination. RESULTS The success rate of the method was 95.1%, while complications occurred in 1.37% of the cases. The hysteroscopic findings were normal in almost 30% of the cases, and the most common pathological finding was endometrial polyp. The sensitivity of hysteroscopy in the detection of intrauterine pathology was 100%, the specificity 81%, the positive predictive value 92% and the negative predictive value 100%. In 69.7% of the patients the cause of bleeding was hysteroscopically removed. Hysteroscopy was performed in 58.1% of the patients in the same sitting, and in 11.6% of the patients after obtaining histological findings. CONCLUSION Hysteroscopy is a safe, highly sensitive diagnostic procedure, thus being an ideal method for evaluation of patients with postmenopausal bleeding. The application of hysteroscopy with endometrial biopsy leads to accurate diagnosis. An adequate diagnosis is crucial for the selection of relevant treatment of postmenopausal bleeding and avoidance of unnecessary major surgical procedures. Except for being a diagnostic method hysteroscopy, is also an outpatient minimally invasive surgical procedure for treating the cause of bleeding in the majority of cases in the same sitting.
Australian & New Zealand Journal of Obstetrics & Gynaecology | 2006
Ana Mitrović; Predrag Brkic; Branka Nikolic; Svetlana Dragojević; Olga Zaric; Aleksandar Ljubic; Tomislav Jovanović
In vitro fertilisation (IVF) and intracytoplasmic sperm injection (ICSI) are used to help infertile couple to conceive their own biological child. Success of IVF is associated with several factors, although many important factors are, unfortunately, not known. Known prognostic factors include maternal age, ovarian reserve, past reproductive performance, embryonal culture, endometrial receptivity, embryo transfer and luteal phase support. The therapeutic application of hyperbaric oxygen (HBO) has been known over three decades in different fields of medicine. Our objective was to determine the usefulness of HBO therapy during IVF procedure. While it is difficult to prove that HBO is the crucial factor for the success of this IVF/ICSI procedure, it is important to report that pregnancy occurred.
Journal of Genetic Counseling | 2016
Goran Cuturilo; Olivera Kontic Vucinic; Ivana Novakovic; Svetlana Ignjatovic; Marija Mijovic; Nenad Sulovic; Dusan Vukolic; Milica Komnenić; Jasmina Tadic; Aleksandar Cetkovic; Aleksandra Belic; Aleksandar Ljubic
This is the first study in Serbia and the region of South-East Europe dedicated to clients’ perception of outcome and efficiency of prenatal and reproductive genetic counseling. The primary aim of this study was to assess overall value and success of genetic counseling in prenatal and reproductive care with regard to perceived personal control of clients, reflecting also in a part patient comprehension, knowledge retention, and empowerment in decision-making. The standardized Perceived Personal Control questionnaire (PPC) was used for the assessment of 239 female participants. First, we performed a complete validation of the psychometric characteristics of the Serbian-language version of the PPC questionnaire. The validation of the questionnaire permits other researchers from Serbian-speaking regions of South-East Europe to use this standard instrument to assess the effectiveness of prenatal genetic counseling in their communities and analyze advantages and disadvantages of their counseling models. We also measured social and demographic characteristics of participants. Further, we analyzed effects of our team-based prenatal and reproductive genetic counseling model through (a) calculation of PPC scores at three different stages (before initial, after initial, and before second counseling session), and (b) by assessing participants’ responses by indication for referral (advanced maternal age, abnormal biochemical screening, family history of hereditary disorders, maternal exposure to drugs, exposure to radiation, exposure to infective agents, infertility or recurrent abortions, and miscellaneous). The results indicate that participants’ knowledge after initial counseling increased significantly and after that remained stable and sustainable. A satisfactory level of confidence among participants had been achieved, in that many felt an increased sense of control over their situation and emotional response to it. Indirectly, these results indicate the success of a team-based prenatal genetic counseling model, which has not been assessed in the literature to date.
Bosnian Journal of Basic Medical Sciences | 2006
Ana Mitrović; Branka Nikolic; Svetlana Dragojević; Predrag Brkic; Aleksandar Ljubic; Tomislav Jovanović
Vojnosanitetski Pregled | 2012
Branka Nikolic; Aleksandar Ljubic; Milan Terzic; Aleksandra Arandjelovic; Srdjan Babic; Milos Vucic
Donald School Journal of Ultrasound in Obstetrics & Gynecology | 2011
Aleksandar Ljubic; Aleksandar Cetkovic; Aleksandra Novakov Mikic; Jelena Stamenković; Ida Jovanovic; Tatjana Stosic Opincal; Dusan Damnjanovic
12th European Congress of Endocrinology | 2010
Dragana Miljic; Aleksandar Cetkovic; Aleksandar Ljubic; Michael Patterson; Mohammad Ghatei; Steven R. Bloom; Marina Djurovic; Mirjana Doknic; Sandra Pekic; Marko Stojanovic; Vera Popovic
Donald School Journal of Ultrasound in Obstetrics & Gynecology | 2017
Aleksandar Ljubic; Tatjana Bozanovic; Asim Kurjak; Frank A. Chervenak
Facta Universitatis, Series: Medicine and Biology | 2016
Milica Komnenić; Bojana Petrovic; Jasmina Tadic; Srboljub Milicevic; Jelena Stamenković; Aleksandar Ljubic