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Jovandaric MZ, Babic S, Raus M, Medjo B. The Importance of Metabolic and Environmental Factors in the Occurrence of Oxidative Stress during Pregnancy. Int J Mol Sci 2023; 24:11964. [PMID: 37569340 PMCID: PMC10418910 DOI: 10.3390/ijms241511964] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/16/2023] [Accepted: 07/21/2023] [Indexed: 08/13/2023] Open
Abstract
Metabolic changes in pregnant women begin in the first weeks after conception under the influence of placental hormones that affect the metabolism of all nutrients. An increased concentration of total lipids accompanies pregnancy and an increased accumulation of triglycerides in low-density lipoproteins (LDL) particles. Lipids in small dense LDL particles are more susceptible to oxidative modification than normal-density LDL particles. Unlike LDL high-density lipoproteins (HDL), lipoprotein particles have an atheroprotective role in lipid metabolism. The very growth of the fetus depends on the nutrition of both parents, so obesity is not only in the mother but also in the father. Nutritional programming of the offspring occurs through changes in lipid metabolism and leads to an increased risk for cardiometabolic diseases. Pregnancy is accompanied by an increased need for oxygen in the mitochondria of the placenta and a tendency to develop oxidative stress. Oxidative stress represents a disturbance in the balance of oxidation-reduction processes in the body that occurs due to the excessive production of free oxygen radicals that cellular homeostatic mechanisms are unable to neutralize. When the balance with the antioxidant system is disturbed, which happens when free oxygen radicals are in high concentrations, serious damage to biological molecules occurs, resulting in a series of pathophysiological and pathological changes, including cell death. Therefore, oxidative stress plays a significant role in the pathogenesis of many complications that can occur during pregnancy. The oxidative status of pregnant women is also influenced by socioeconomic living conditions, lifestyle habits, diet, smoking, and exposure to environmental air pollution. During a healthy pregnancy, the altered lipid profile and oxidative stress create an increased risk for premature birth and pregnancy-related diseases, and a predisposition to adult diseases.
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Affiliation(s)
- Miljana Z. Jovandaric
- Department of Neonatology, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Sandra Babic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Misela Raus
- Department of Neonatology, University Children’s Hospital, 11000 Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
| | - Biljana Medjo
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia
- Department Pediatrics and Neonatal Intensive Care, University Children’s Hospital, 11000 Belgrade, Serbia
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Babic S, McNiven AL, Bezjak A, Balogh JM, Mah K, Tsao MN. Evolution and Evaluation of a Structured Applied Physics Course for Radiation Oncology and Radiation Physics Trainees. J Cancer Educ 2023; 38:813-820. [PMID: 35761143 PMCID: PMC9243863 DOI: 10.1007/s13187-022-02190-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 06/05/2022] [Indexed: 06/02/2023]
Abstract
We sought to supplement medical physics textbook knowledge and clinical learning with case-based discussions. To our knowledge, this is the first report on a structured combined applied physics curriculum for radiation oncology (RO) and medical physics (MP) trainees. We reviewed our yearly applied physics course given from the years 2016-2021 inclusive. The number of applied physics trainees ranged from 7 to 14 per year (2-9 RO and 3-6 MP residents per year). Each session was taught by a pair of (RO and MP) faculty members. Twenty-nine case-based sessions were given yearly (2016 to 2019). Because of the COVID-19 pandemic restrictions, the course was shortened to 8 case-based sessions in 2020 and 2021. For the years 2016-2021, the mean and median teaching evaluation scores were 4.65 and 5, respectively (range 2-5), where 1 represents worse teaching quality and 5, the best teaching quality. For the year 2021, 2 questions relating to the video virtual format (implemented due to the covid-19 pandemic), revealed consistent high scores with the mean and median responses of 4.14 and 5, respectively (range 1-5). The results from the teaching evaluation scores indicate that the trainees highly valued the teaching sessions and teachers. Our experience indicates that a case-based applied physics course was delivered successfully with continued high teaching evaluation scores. A video virtual platform for an applied physics course could be useful, especially for small programs without a structured applied physics curriculum.
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Affiliation(s)
- S Babic
- Department of Radiation Oncology, University of Toronto, Carlo Fidani Regional Cancer Centre - Trillium Health Partners (Credit Valley Site), Mississauga, ON, Canada
| | - A L McNiven
- Department of Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - A Bezjak
- Department of Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - J M Balogh
- Department of Radiation Oncology, Odette Cancer Centre - Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, Canada
| | - K Mah
- Department of Radiation Oncology, University of Toronto, Princess Margaret Cancer Centre, Toronto, ON, Canada
- Department of Radiation Oncology, Odette Cancer Centre - Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, Canada
| | - M N Tsao
- Department of Radiation Oncology, Odette Cancer Centre - Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Ave, Toronto, ON, Canada.
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Jovandaric MZ, Dokic M, Babovic IR, Milicevic S, Dotlic J, Milosevic B, Culjic M, Andric L, Dimic N, Mitrovic O, Beleslin A, Nikolic J, Jestrovic Z, Babic S. The Significance of COVID-19 Diseases in Lipid Metabolism Pregnancy Women and Newborns. Int J Mol Sci 2022; 23:ijms232315098. [PMID: 36499427 PMCID: PMC9736562 DOI: 10.3390/ijms232315098] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 11/16/2022] [Accepted: 11/23/2022] [Indexed: 12/03/2022] Open
Abstract
Coronavirus disease (COVID-19) is an infectious disease caused by SARS-CoV-2. Elderly people, people with immunodeficiency, autoimmune and malignant diseases, as well as people with chronic diseases have a higher risk of developing more severe forms of the disease. Pregnant women and children can becomesick, although more often they are only the carriers of the virus. Recent studies have indicated that infants can also be infected by SARS-CoV-2 and develop a severe form of the disease with a fatal outcome. Acute Respiratory Distress Syndrome (ARDS) ina pregnant woman can affect the supply of oxygen to the fetus and initiate the mechanism of metabolic disorders of the fetus and newborn caused by asphyxia. The initial metabolic response of the newborn to the lack of oxygen in the tissues is the activation of anaerobic glycolysis in the tissues and an increase in the concentration of lactate and ketones. Lipid peroxidation, especially in nerve cells, is catalyzed by iron released from hemoglobin, transferrin and ferritin, whose release is induced by tissue acidosis and free oxygen radicals. Ferroptosis-inducing factors can directly or indirectly affect glutathione peroxidase through various pathways, resulting in a decrease in the antioxidant capacity and accumulation of lipid reactive oxygen species (ROS) in the cells, ultimately leading to oxidative cell stress, and finally, death. Conclusion: damage to the mitochondria as a result of lipid peroxidation caused by the COVID-19 disease can cause the death of a newborn and pregnant women as well as short time and long-time sequelae.
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Affiliation(s)
- Miljana Z. Jovandaric
- Department of Neonatology, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Correspondence: ; Tel.: +381-11-366-35-86
| | - Milan Dokic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia
| | - Ivana R. Babovic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia
| | - Srboljub Milicevic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia
| | - Jelena Dotlic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia
| | - Branislav Milosevic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia
| | - Miljan Culjic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Luka Andric
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Nemanja Dimic
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia
- Clinic for Anesthesiology and Intensive Care, University Clinical Hospital Center “Dr Dragisa Misovic - DEDINJE”, 11000 Belgrade, Serbia
| | - Olga Mitrovic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Aleksandra Beleslin
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Jovana Nikolic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Zorica Jestrovic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
| | - Sandra Babic
- Department of Gynecology and Obstetrics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia
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Jovandaric MZ, Milenkovic SJ, Dotlic J, Babovic IR, Jestrovic Z, Milosevic B, Culjic M, Babic S. Neonatal Pneumothorax Outcome in Preterm and Term Newborns. Medicina (Kaunas) 2022; 58:medicina58070965. [PMID: 35888683 PMCID: PMC9320446 DOI: 10.3390/medicina58070965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 11/27/2022]
Abstract
Background and Objectives: Pneumothorax implies the presence of air in the pleural space between the visceral and parietal pleura. The aim of this study was to investigate the incidence, clinical characteristics, risk factors, therapy and perinatal outcome in neonates with pneumothorax in a tertiary care center. Materials and Methods: A retrospective study based on a five-year data sample of neonates with pneumothorax was conducted in a Maternity Hospital with a tertiary NICU from 2015 to 2020. We included all neonates with pneumothorax born in our hospital and compared demographic characteristics, perinatal risk factors, anthropometric parameters, comorbidities, clinical course and method of chest drainage between term (≥37 GW) and preterm (<37 GW) neonates. Results: The study included 74 newborns with pneumothorax, of which 67.6% were male and 32.5% were female. The majority of women (59.5%) had no complications during pregnancy. Delivery was mainly performed via CS (68.9%). Delivery occurred on average in 34.62 ± 4.03 GW. Significantly more (p = 0.001) children with pneumothorax were born prematurely (n = 53; 71.6%) than at term (n = 21; 28.4%). Most of the neonates had to be treated with ATD (63.5%) and nCPAP (39.2%), but less often they were treated with surfactant (40.5%) and corticosteroids (35.1%). O2 therapy lasted an average of 8.89 ± 4.57 days. Significantly more (p = 0.001) neonates with pneumothorax had additional complications, pneumonia, sepsis, convulsions and intraventricular hemorrhage (68.9%). However, most children had a good outcome (83.8%) and were discharged from the clinic. Fatal outcomes occurred in six cases, while another six neonates had to be transferred to referral neonatal centers for further treatment and care. Conclusion: Significantly more children with pneumothorax were born prematurely than at term. With adequate therapy, even premature newborns can successfully recover from pneumothorax.
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Affiliation(s)
- Miljana Z. Jovandaric
- Department of Neonatology, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia;
- Correspondence:
| | - Svetlana J. Milenkovic
- Department of Neonatology, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia;
| | - Jelena Dotlic
- Department of Gynecology and Obstretics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (J.D.); (I.R.B.); (Z.J.); (B.M.); (M.C.); (S.B.)
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia
| | - Ivana R. Babovic
- Department of Gynecology and Obstretics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (J.D.); (I.R.B.); (Z.J.); (B.M.); (M.C.); (S.B.)
- Medical Faculty, University of Belgrade, 11000 Belgrade, Serbia
| | - Zorica Jestrovic
- Department of Gynecology and Obstretics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (J.D.); (I.R.B.); (Z.J.); (B.M.); (M.C.); (S.B.)
| | - Branislav Milosevic
- Department of Gynecology and Obstretics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (J.D.); (I.R.B.); (Z.J.); (B.M.); (M.C.); (S.B.)
| | - Miljan Culjic
- Department of Gynecology and Obstretics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (J.D.); (I.R.B.); (Z.J.); (B.M.); (M.C.); (S.B.)
| | - Sandra Babic
- Department of Gynecology and Obstretics, Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, 11000 Belgrade, Serbia; (J.D.); (I.R.B.); (Z.J.); (B.M.); (M.C.); (S.B.)
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Dugalic S, Petronijevic M, Vasiljevic B, Todorovic J, Stanisavljevic D, Jotic A, Lukic L, Milicic T, Lalić N, Lalic K, Stoiljkovic M, Terzic-Supic Z, Stanisavljevic T, Stefanovic A, Stefanovic K, Vrzic-Petronijevic S, Macura M, Pantic I, Piperac P, Jovanovic M, Cerovic R, Djurasevic S, Babic S, Perkovic-Kepeci S, Gojnic M. Trends of the Prevalence of Pre-gestational Diabetes in 2030 and 2050 in Belgrade Cohort. Int J Environ Res Public Health 2022; 19:ijerph19116517. [PMID: 35682099 PMCID: PMC9180675 DOI: 10.3390/ijerph19116517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/17/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022]
Abstract
The aim of this study was to analyze the trends in diabetes in pregnancy in Belgrade, Serbia for the period of the past decade and forecast the number of women with pre-gestational diabetes for the years 2030 and 2050. The study included the data on all pregnant women with diabetes from the registry of the deliveries in Belgrade, by the City Institute of Public Health of Belgrade, Serbia for the period between 2010 and 2020 and the published data on the deliveries on the territory of Belgrade. During the examined period the total number of live births in Belgrade was 196,987, and the prevalence of diabetes in pregnancy was 3.4%, with the total prevalence of pre-gestational diabetes of 0.7% and overall prevalence of GDM of 2.7%. The average age of women in our study was significantly lower in 2010 compared to 2020. The forecasted prevalence of pre-gestational diabetes among all pregnant women for 2030 is 2% and 4% for 2050 in our cohort. Our study showed that the prevalence of pre-gestational diabetes has increased both among all pregnant women and among women with diabetes in pregnancy in the past decade in Belgrade, Serbia and that it is expected to increase further in the next decades and to further double by 2050.
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Affiliation(s)
- Stefan Dugalic
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
| | - Milos Petronijevic
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
| | - Brankica Vasiljevic
- Maternity and Child Health Service, NMC Royal Hospital DIP, Dubai Hospital, Dubai P.O. Box 7832, United Arab Emirates;
| | - Jovana Todorovic
- Faculty of Medicine, Institute of Social Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.T.); (Z.T.-S.)
| | - Dejana Stanisavljevic
- Faculty of Medicine, Institute for Medical Statistics and Informatics, University of Belgrade, 11000 Belgrade, Serbia;
| | - Aleksandra Jotic
- Faculty of Medicine, Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.)
| | - Ljiljana Lukic
- Faculty of Medicine, Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.)
| | - Tanja Milicic
- Faculty of Medicine, Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.)
| | - Nebojsa Lalić
- Faculty of Medicine, Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.)
| | - Katarina Lalic
- Faculty of Medicine, Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.)
| | - Milica Stoiljkovic
- Faculty of Medicine, Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.)
| | - Zorica Terzic-Supic
- Faculty of Medicine, Institute of Social Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.T.); (Z.T.-S.)
| | | | - Aleksandar Stefanovic
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
| | - Katarina Stefanovic
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
| | - Svetlana Vrzic-Petronijevic
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
| | - Maja Macura
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
| | - Igor Pantic
- Faculty of Medicine, Institute for Medical Physiology, University of Belgrade, 11000 Belgrade, Serbia;
| | - Pavle Piperac
- Department for Humanities, University of Belgrade, Faculty of Medicine, 11000 Belgrade, Serbia;
| | | | - Radmila Cerovic
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
| | | | - Sandra Babic
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
| | | | - Miroslava Gojnic
- Faculty of Medicine, Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (S.D.); (M.P.); (A.S.); (K.S.); (S.V.-P.); (M.M.); (R.C.); (S.B.)
- Correspondence:
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Arora H, Babic S, Lee T, Rogers T, Eaves AC, Louis SA, Brown MA, Kokaji AI, Tabatabaei-Zavareh N. Robust Serum- and Feeder-Free Expansion of Mouse B Cells In Vitro. The Journal of Immunology 2022. [DOI: 10.4049/jimmunol.208.supp.172.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
Mouse B cells are used in workflows to discover novel therapeutic antibodies or develop preclinical applications using genetically engineered B cells. In vitro expansion of B cells offers the opportunity to improve the recovery of antibody sequences and aids in the potential increase in the diversity of the B cell repertoire. Achieving robust expansion of B cells in culture can be challenging, as it typically requires the addition of serum, feeder cells, or specialized culture plates. The addition of serum can introduce unknown factors and result in lot-to-lot variability. Therefore, we have developed a first-to-market culture system that does not require the use of serum, feeder cells, or specialized culture plates to achieve robust in vitro expansion of mouse pan-B cells. Pan-B cells isolated from mouse splenocytes by immunomagnetic enrichment were cultured in serum-free ImmunoCultTM-XF B Cell Base Medium supplemented with ImmunoCultTM-ACF Mouse B Cell Expansion Supplement for > 9 days, starting with seeding densities of 100,000 cells/well and passaging every 3 days. Although pronounced donor variability was observed in the rate of expansion of viable cells, mean ~13-fold, ~150-fold, and ~200-fold rates were observed after 3, 6, and 9 days in culture, respectively (n=6 donors; range 94- to 328-fold at day 9). The expanded B cells also upregulated expression of activation and differentiation markers such as CD86 (mean 74%; n=6 donors; range 34 – 90%), CD138 (mean 68%; n=6 donors; range 57 – 73%), and CD267 (mean 79%; n=6 donors; range 49 – 91%) at day 9. The expansion supplement should facilitate mouse B cell studies for antibody discovery and diverse basic and translational applications.
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Jovandaric MZ, Stefanovic S, Babic S, Milenkovic SJ, Babovic IR. Importance of Staphylococcus epidermidis findings in the blood and cerebrospinal fluid of a full-term newborn: a case report. J Int Med Res 2022; 50:3000605221093216. [PMID: 35435035 PMCID: PMC9019340 DOI: 10.1177/03000605221093216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Methicillin-resistant Staphylococcus epidermidis (MRS) predominantly colonizes the skin and mucous membranes of humans and other animals. We describe the case of a male newborn of gestational age 39 weeks whose primary and repeated blood cultures and cerebrospinal fluid samples isolated MRS. The choice and duration of antibiotic therapy were determined by the clinical presentation, infection parameters, and results of bacteriological analyses of blood and cerebrospinal fluid samples obtained from the newborn on the day 5 of life. After 28 days of antibiotic therapy for sepsis accompanied by meningitis, the newborn was discharged home without sequelae.
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Affiliation(s)
- Miljana Z Jovandaric
- Clinic for Gynecology and Obstetrics, Department of Neonatology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Slobodanka Stefanovic
- Department of Medical Microbiology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Sandra Babic
- Clinic for Gynecology and Obstetrics, University Clinical Center of Serbia, Belgrade, Serbia
| | - Svetlana J Milenkovic
- Clinic for Gynecology and Obstetrics, Department of Neonatology, University Clinical Center of Serbia, Belgrade, Serbia
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Gojnic M, Todorovic J, Stanisavljevic D, Jotic A, Lukic L, Milicic T, Lalic N, Lalic K, Stoiljkovic M, Stanisavljevic T, Stefanovic A, Stefanovic K, Vrzic-Petronijevic S, Petronijevic M, Terzic-Supic Z, Macura M, Perovic M, Babic S, Piperac P, Jovanovic M, Parapid B, Doklestic K, Cerovic R, Djurasevic S, Dugalic S. Maternal and Fetal Outcomes among Pregnant Women with Diabetes. IJERPH 2022; 19:ijerph19063684. [PMID: 35329371 PMCID: PMC8953700 DOI: 10.3390/ijerph19063684] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/12/2022] [Accepted: 03/15/2022] [Indexed: 02/08/2023]
Abstract
The aim of this study was to examine the differences in pregnancy complications, delivery characteristics, and neonatal outcomes between women with type 1 diabetes mellitus (T1DM), type 2 diabetes mellitus (T2DM), and gestational diabetes mellitus (GDM). This study included all pregnant women with diabetes in pregnancy in Belgrade, Serbia, between 2010 and 2020. The total sample consisted of 6737 patients. In total, 1318 (19.6%) patients had T1DM, 138 (2.0%) had T2DM, and 5281 patients (78.4%) had GDM. Multivariate logistic regression with the type of diabetes as an outcome variable showed that patients with T1DM had a lower likelihood of vaginal delivery (OR: 0.73, 95% CI: 0.64–0.83), gestational hypertension (OR: 0.47, 95% CI: 0.36–0.62), higher likelihood of chronic hypertension (OR: 1.88, 95% CI: 1.55–2.29),and a higher likelihood ofgestational age at delivery before 37 weeks (OR: 1.38, 95% CI: 1.18–1.63) compared to women with GDM. Multivariate logistic regression showed that patients with T2DM had a lower likelihood ofgestational hypertension compared to women with GDM (OR: 0.37, 95% CI: 0.15–0.92).Our results indicate that the highest percentage of diabetes in pregnancy is GDM, and the existence of differences in pregnancy complications, childbirth characteristics, and neonatal outcomes are predominantly between women with GDM and women with T1DM.
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Affiliation(s)
- Miroslava Gojnic
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
| | - Jovana Todorovic
- Institute of Social Medicine, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.T.); (Z.T.-S.)
| | - Dejana Stanisavljevic
- Institute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Aleksandra Jotic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Ljiljana Lukic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Tanja Milicic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Nebojsa Lalic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Katarina Lalic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Milica Stoiljkovic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
- Clinic for Endocrinology, Diabetes and Metabolic Diseases, University Clinical Centre of Serbia, 11000 Belgrade, Serbia
| | - Tamara Stanisavljevic
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
| | - Aleksandar Stefanovic
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
| | - Katarina Stefanovic
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
| | - Svetlana Vrzic-Petronijevic
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
| | - Milos Petronijevic
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
| | - Zorica Terzic-Supic
- Institute of Social Medicine, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.T.); (Z.T.-S.)
| | - Maja Macura
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
| | - Milan Perovic
- Clinic for Gynecology and Obstetrics “NarodniFront”, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Sandra Babic
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
| | - Pavle Piperac
- Department for Humanities, Faculty of Medicine, University of Belgrade, 11000 belgrade, Serbia;
| | | | - Bijana Parapid
- Clinic for Cardiology, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia;
| | - Krisitna Doklestic
- Emergency Department, University Clinical Centre of Serbia, 11000 Belgrade, Serbia;
| | - Radmila Cerovic
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
| | | | - Stefan Dugalic
- Clinic for Obstetrics and Gynecology, University Clinical Centre of Serbia, 11000 Belgrade, Serbia; (M.G.); (A.S.); (K.S.); (S.V.-P.); (M.P.); (M.M.); (S.B.); (R.C.)
- Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (A.J.); (L.L.); (T.M.); (N.L.); (K.L.); (M.S.); (T.S.)
- Correspondence:
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Antignano F, Babic S, Eaves AC, Brown MA. Robust serum-free expansion of human B cells with an animal component-free cell culture supplement. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.153.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Human B cells are utilized in workflows for discovering therapeutic antibodies and in the developing field of cellular therapy. The ability to expand the B cell population in blood samples from pathogen-exposed or naive patients offers the opportunity to improve the recovery of antibody sequences, increase the diversity of the B cell repertoire, or achieve de novo immunization in vitro. It can be difficult, however, to obtain robust expansion of B cells in cultures. Addition of serum improves performance, albeit with high lot-to-lot variability, and introduces the risk of contamination by adventitious agents. We have developed an animal component-free (ACF) supplement for culturing human B cells that does not require the use of serum, feeder cells, or specialized culture plates to achieve robust in vitro expansion. The ACF supplement is a 50X concentrate comprising non-animal-derived recombinant proteins and factors that can be added to a suitable base medium of choice to promote B cell activation and expansion. Human pan-B cells isolated from peripheral blood mononuclear cells (leukopaks) by immunomagnetic enrichment could be cultured and expanded in standard 24-well tissue culture plates for over 30 days, starting with seeding densities of 1 × 105 cells/well and passaging every few days from day 7 (± 1 day) onwards. Though pronounced inter-donor cell variability was observed in the rate of proliferation, an average ~55-fold, ~110-fold and ~160-fold expansion of viable B cells was obtained after 7, 11 and 14 days of culture, respectively (n = 21 donors; range 27- to 1090-fold at day 14 ± 1 day). Differentiation to plasma cells was apparent by flow cytometric analysis of CD138 and CD20.
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Affiliation(s)
| | | | - Allen C Eaves
- 1STEMCELL Technologies, Canada
- 2Terry Fox Laboratory, BC Cancer Agency, Canada
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Petrovic M, Kastelan-Macan M, Lazaric K, Babic S. Validation of Thin-Layer Chromatography Quantitation Determination with CCD Camera and Slit-Scanning Densitometer. J AOAC Int 2020. [DOI: 10.1093/jaoac/82.1.25] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Video densitometric and classical slit-scanning determinations of pesticides on thin-layer chromatographic plates were validated for linearity, precision, and detection limit. A comparison of results showed that slit-scanning densitometry is more sensitive and more precise than video densitometry. However, according to validation requirements, relative standard deviation for video densitometry is acceptable (3.5–5.3%). Linearities are very good and almost identical for both techniques. The main advantage of video technology is speed (a few seconds, compared with 20 min with scanning densitometry). Video technology also provides excellent archiving facility. Image and chromatographic data can be stored together, edited, and used for many tasks.
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Affiliation(s)
- Mira Petrovic
- University of Zagreb, Faculty of Chemical Engineering and Technology, Laboratory of Analytical Chemistry, Marulicev trg 19, 10000 Zagreb, Croatia
| | - Marija Kastelan-Macan
- University of Zagreb, Faculty of Chemical Engineering and Technology, Laboratory of Analytical Chemistry, Marulicev trg 19, 10000 Zagreb, Croatia
| | - Katica Lazaric
- PLIVA, d.d. Research Institute, Drug Development, Prilaz baruna Filipovica 25,10000 Zagreb, Croatia
| | - Sandra Babic
- University of Zagreb, Faculty of Chemical Engineering and Technology, Laboratory of Analytical Chemistry, Marulicev trg 19, 10000 Zagreb, Croatia
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Unic-Stojanovic D, Milicic B, Radak D, Radak S, Babic S, Rankovic-Nicic L, Bučić A, Jovic M. The prognostic value of perioperative copeptin levels in patients undergoing carotid surgery. J Cardiothorac Vasc Anesth 2018. [DOI: 10.1053/j.jvca.2018.08.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Affiliation(s)
- Sandra Babic
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, Croatia
| | - Martina Biosic
- Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, Croatia
| | - Irena Skoric
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, Croatia
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Trivedi A, Babic S, Heiman M, Gibson WT, Chanoine JP. Ghrelin, Ghrelin O-Acyltransferase, and Carbohydrate Metabolism During Pregnancy in Calorie-Restricted Mice. Horm Metab Res 2017; 49:64-72. [PMID: 27701682 DOI: 10.1055/s-0042-116117] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Acylation of ghrelin is mediated by ghrelin O-acyltansferase (GOAT). Exogenous acylated ghrelin (AG) stimulates growth hormone (GH) and food intake. In non-pregnant (NP) animals, the GOAT-ghrelin-GH axis prevents hypoglycemia caused by caloric restriction (CR). In humans, maternal malnutrition challenges glucose metabolism, which is a key determinant of fetal health. To clarify the role of AG and GH, we compared effects of CR on the GOAT-ghrelin-GH axis in pregnant (P) and NP mice. C57BL/6 wild type (WT) and GOAT knock-out (KO) P and NP mice were freely fed (FF) or subjected to 50% CR for one week. CR was started in P mice on Day 10.5 after conception. We measured body composition, blood glucose, plasma ghrelin and GH, stomach, hypothalamus and pituitary GOAT and ghrelin expression, and liver glycogen content and Pck1 expression. GOAT and AG were undetectable in KO. In NP mice, CR did not affect blood glucose (-1.3 mmol/l, p>0.05) in WT but was lowered (-1.8 mmol/l, p<0.0001) in KO. GH and Pck1 mRNA expression increased in WT but not in KO. In P mice, CR markedly lowered glucose (-2.7 mmol/l; p<0.0001) in WT and caused fatal hypoglycemia in KO, despite similarly elevated GH in WT and KO mice. KO animals are more prone to hypoglycemia than WT. GH, which is high in P animals, does not prevent hypoglycemia caused by CR during pregnancy. Our data suggest a specific role of AG in the regulation of gluconeogenesis to maintain euglycemia during pregnancy when energy availability is limited.
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Affiliation(s)
- Arjun Trivedi
- Child & Family Research Institute, Vancouver, BC, Canada
| | - Sandra Babic
- Child & Family Research Institute, Vancouver, BC, Canada
| | - Mark Heiman
- MicroBiome Therapeutics, New Orleans, LA, USA
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Begovic N, Paunovic Z, Djuraskovic Z, Lazovic L, Mijovic T, Babic S. Lateral pinning versus others procedures in the treatment of supracondylar humerus fractures in children. Acta Orthop Belg 2016; 82:866-871. [PMID: 29182131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We compared results of lateral pinning procedure with crossed pinning, closed reduction, and open reduction in a retrospective review of 184 patients with displaced supracondylar humeral fractures. All patients had a minimum of 2 years follow-up (range 36-90 months). Patients were separated into 4 groups. Success was estimated by Flynn's criteria. We compared success of the lateral pinning to others procedures. Incidence of nerve palsy was recorded and compared. Esthetic effect of lateral pinning is significantly better than closed reduction (p=0.0007), but no significant difference was found comparing with cross pinning and open reduction. Elbow function was similar. Cross pinning procedure was followed with ulnar nerve palsy in ten patients (20.8%). There was 1 case (5%) of combined nerve palsy including ulnar, median and radial nerve after open reduction procedure. Lateral pinning is safe and effective method of therapy for Gartland type II and III supracondylar humeral fractures.
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Unic-Stojanovic D, Maravic-Stojkovic V, Babic S, Gajin P, Parojcic A, Milicic B, Jovic M. Abstract PR171. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492572.69282.9f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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16
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Kovacic M, Juretic Perisic D, Biosic M, Kusic H, Babic S, Loncaric Bozic A. UV photolysis of diclofenac in water; kinetics, degradation pathway and environmental aspects. Environ Sci Pollut Res Int 2016; 23:14908-14917. [PMID: 27072038 DOI: 10.1007/s11356-016-6580-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 03/27/2016] [Indexed: 06/05/2023]
Abstract
In this study, the photolysis behavior of commonly used anti-inflammatory drug diclofenac (DCF) was investigated using UV-C and UV-A irradiation. In that purpose, DCF conversion kinetics, mineralization of organic content, biodegradability, and toxicity were monitored and compared. The results showed different kinetics of DCF conversion regarding the type of UV source applied. However, in both cases, the mineralization extent reached upon complete DCF conversion is rather low (≤10 %), suggesting that the majority of DCF was transformed into by-products. Formation/degradation of main degradation by-products was monitored using high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry (HPLC-ESI-MS/MS), whereas different profiles were obtained by UV-C and UV-A photolysis. The results of bioassays revealed that biodegradability of DCF solutions remained low through the applied treatments. The toxicity of irradiated DCF solutions was evaluated using Vibrio fischeri. A significant reduction of toxicity, especially in the case of UV-A radiation, was observed upon complete degradation of DCF. In addition to toxicity reduction, calculated Log K OW values of DCF degradation by-products indicate their low potential for bioaccumulation (Log K OW ≤ 3) in comparison to the parent substance.
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Affiliation(s)
- Marin Kovacic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, 10000, Croatia
| | - Daria Juretic Perisic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, 10000, Croatia
| | - Martina Biosic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, 10000, Croatia
| | - Hrvoje Kusic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, 10000, Croatia
| | - Sandra Babic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, 10000, Croatia.
| | - Ana Loncaric Bozic
- Faculty of Chemical Engineering and Technology, University of Zagreb, Marulicev trg 19, Zagreb, 10000, Croatia.
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Galaj E, Manuszak M, Babic S, Ananthan S, Ranaldi R. The selective dopamine D3 receptor antagonist, SR 21502, reduces cue-induced reinstatement of heroin seeking and heroin conditioned place preference in rats. Drug Alcohol Depend 2015; 156:228-233. [PMID: 26429728 PMCID: PMC4633332 DOI: 10.1016/j.drugalcdep.2015.09.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 09/13/2015] [Accepted: 09/14/2015] [Indexed: 11/23/2022]
Abstract
BACKGROUND Because the role of dopamine (DA) D3 receptors has been investigated primarily in relation to cocaine-related behaviors little is known of the role of these receptors in heroin seeking. PURPOSES To investigate the effect of the selective DA D3 receptor antagonist, SR 21502, on cue-induced reinstatement of heroin seeking and heroin conditioned place preference (CPP). METHODS In experiment 1, rats were trained to self-administer intravenous heroin for 15 days followed by extinction. Following extinction animals were treated with one of several SR 21502 doses (0, 7.5, 10 or 15mg/kg) and a cue-induced reinstatement test was conducted. In experiment 2, animals were conditioned to experience heroin in one compartment of a CPP apparatus and saline in the other. On the test day animals were treated with 0, 3.75, 7.5, 10 or 15mg/kg of SR 21502 and tested for their CPP. RESULTS The results from experiment 1 showed a significant dose-related reduction in cue-induced reinstatement of active lever pressing in the 7.5 and 10mg groups and an absence of the reinstatement effect in the 15mg group. In experiment 2, animals treated with vehicle or 3.75mg of SR 21502 showed significant heroin place preferences but those treated with the higher doses showed no CPP. CONCLUSIONS Our findings suggest that DA D3 receptors play a significant role in heroin approach behaviors driven by conditioned stimuli. As such, we propose that SR 21502 holds potential as an effective pharmacotherapeutic agent for relapse prevention and should be studied further.
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MESH Headings
- Animals
- Conditioning, Classical/drug effects
- Conditioning, Classical/physiology
- Cues
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Extinction, Psychological/drug effects
- Extinction, Psychological/physiology
- Female
- Heroin/administration & dosage
- Heroin Dependence/physiopathology
- Heroin Dependence/rehabilitation
- Imidazoles/pharmacology
- Male
- Pyridines/pharmacology
- Rats
- Rats, Long-Evans
- Receptors, Dopamine D3/antagonists & inhibitors
- Receptors, Dopamine D3/physiology
- Recurrence
- Self Administration
- Substance Abuse, Intravenous/physiopathology
- Substance Abuse, Intravenous/rehabilitation
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Affiliation(s)
- Ewa Galaj
- CUNY Graduate Center, New York, NY, United States
| | - Monica Manuszak
- Queens College of the City University of New York, Department of Psychology, Flushing, NY, United States
| | - Sandra Babic
- Queens College of the City University of New York, Department of Psychology, Flushing, NY, United States
| | - Subramaniam Ananthan
- Department of Chemistry, Drug Discovery Division, Southern Research Institute, Birmingham, AL, United States
| | - Robert Ranaldi
- CUNY Graduate Center, New York, NY, United States; Queens College of the City University of New York, Department of Psychology, Flushing, NY, United States.
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Franklin M, Hlavacova N, Babic S, Bermudez I, Jezova D. Pineal Melatonin in a Sub-chronic Tryptophan Depletion Female Rat Model of Treatment-resistant Depression. Pharmacopsychiatry 2015; 48:e3. [PMID: 26121282 DOI: 10.1055/s-0035-1555824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M Franklin
- School of Life Sciences, Oxford Brookes University, Oxford OX3 0BP, UK
| | - N Hlavacova
- Institute of Experimental Endocrinology, Laboratory of Pharmacological Neuroendocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - S Babic
- Institute of Experimental Endocrinology, Laboratory of Pharmacological Neuroendocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - I Bermudez
- School of Life Sciences, Oxford Brookes University, Oxford OX3 0BP, UK
| | - D Jezova
- Institute of Experimental Endocrinology, Laboratory of Pharmacological Neuroendocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
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Franklin M, Hlavacova N, Babic S, Bermudez I, Jezova D. Pineal Melatonin in a Sub-chronic Tryptophan Depletion Female Rat Model of Treatment-resistant Depression. Pharmacopsychiatry 2015; 48:181-3. [PMID: 26091279 DOI: 10.1055/s-0035-1554711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- M Franklin
- School of Life Sciences, Oxford Brookes University, Oxford OX3 0BP, UK
| | - N Hlavacova
- Institute of Experimental Endocrinology, Laboratory of Pharmacological Neuroendocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - S Babic
- Institute of Experimental Endocrinology, Laboratory of Pharmacological Neuroendocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - I Bermudez
- School of Life Sciences, Oxford Brookes University, Oxford OX3 0BP, UK
| | - D Jezova
- Institute of Experimental Endocrinology, Laboratory of Pharmacological Neuroendocrinology, Slovak Academy of Sciences, Bratislava, Slovakia
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Abstract
Atosiban, an oxytocin/vasopressin receptor antagonist, is used to decrease preterm uterine activity. The risk of preterm delivery is undoubtedly associated with stress, but potential side effects of atosiban on neuroendocrine functions and stress-related pathways are mostly unknown. These studies were designed to test the hypothesis that the chronic treatment of rats with atosiban modulates neuroendocrine functions under stress conditions. Male rats were treated (osmotic minipumps) with atosiban (600 μg/kg per day) or vehicle and were restrained for 120 min/day for 14 days. All animals were treated with a marker of cell proliferation 5-bromo-2-deoxyuridine. Anxiety-like behavior was measured using an elevated plus-maze. Treatment with atosiban failed to modify plasma concentrations of the stress hormones ACTH and corticosterone, but led to a rise in circulating copeptin. Atosiban increased prolactin levels in the non-stressed group. Oxytocin receptor mRNA levels were increased in rats exposed to stress. Treatment with atosiban, in both control and stressed animals, resulted in a decrease in oxytocin receptor gene expression in the hypothalamus. No changes were observed in vasopressin receptor 1A and 1B gene expression. The decrease in hippocampal cell proliferation induced by stress exposure was not modified by atosiban treatment. This study provides the first data, to our knowledge, revealing the effect of atosiban on gene expression of oxytocin receptors in the brain. Atosiban-induced enhancement of plasma copeptin indicates an elevation in vasopressinergic tone with potential influence on water-electrolyte balance.
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Affiliation(s)
- S Babic
- Laboratory of Pharmacological NeuroendocrinologyInstitute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, SlovakiaDepartment of Pharmacology and ToxicologyFaculty of Pharmacy, Comenius University, Odbojarov 10, 832 32 Bratislava, SlovakiaBiotechnology CenterNational Taiwan University, 50, Lane 155, Keelong Road, Section 3, Taipei, Taiwan
| | - M Pokusa
- Laboratory of Pharmacological NeuroendocrinologyInstitute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, SlovakiaDepartment of Pharmacology and ToxicologyFaculty of Pharmacy, Comenius University, Odbojarov 10, 832 32 Bratislava, SlovakiaBiotechnology CenterNational Taiwan University, 50, Lane 155, Keelong Road, Section 3, Taipei, Taiwan
| | - V Danevova
- Laboratory of Pharmacological NeuroendocrinologyInstitute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, SlovakiaDepartment of Pharmacology and ToxicologyFaculty of Pharmacy, Comenius University, Odbojarov 10, 832 32 Bratislava, SlovakiaBiotechnology CenterNational Taiwan University, 50, Lane 155, Keelong Road, Section 3, Taipei, Taiwan Laboratory of Pharmacological NeuroendocrinologyInstitute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, SlovakiaDepartment of Pharmacology and ToxicologyFaculty of Pharmacy, Comenius University, Odbojarov 10, 832 32 Bratislava, SlovakiaBiotechnology CenterNational Taiwan University, 50, Lane 155, Keelong Road, Section 3, Taipei, Taiwan
| | - S T Ding
- Laboratory of Pharmacological NeuroendocrinologyInstitute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, SlovakiaDepartment of Pharmacology and ToxicologyFaculty of Pharmacy, Comenius University, Odbojarov 10, 832 32 Bratislava, SlovakiaBiotechnology CenterNational Taiwan University, 50, Lane 155, Keelong Road, Section 3, Taipei, Taiwan
| | - D Jezova
- Laboratory of Pharmacological NeuroendocrinologyInstitute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, 833 06 Bratislava, SlovakiaDepartment of Pharmacology and ToxicologyFaculty of Pharmacy, Comenius University, Odbojarov 10, 832 32 Bratislava, SlovakiaBiotechnology CenterNational Taiwan University, 50, Lane 155, Keelong Road, Section 3, Taipei, Taiwan
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Trivedi A, Babic S, Heiman M, Gibson WT, Chanoine JP. Acylated ghrelin is not required for the surge in pituitary growth hormone observed in pregnant mice. Peptides 2015; 65:29-33. [PMID: 25645493 DOI: 10.1016/j.peptides.2015.01.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/21/2015] [Accepted: 01/21/2015] [Indexed: 11/23/2022]
Abstract
OBJECTIVE Ghrelin is produced by the stomach, hypothalamus and pituitary. It circulates as acylated ghrelin (AG, which stimulates growth hormone (GH) secretion) and unacylated ghrelin (UAG). Acylation is mediated by the enzyme ghrelin O-acyltransferase (GOAT). In mice, pregnancy is associated with a marked increase in circulating pituitary GH. We investigated the role of AG and UAG in the surge of plasma GH concentrations in pregnant mice at the end of pregnancy. DESIGN Using a mouse model generated on a C57BL/6 background (wild type, WT) in which the GOAT gene has been deleted (KO), we measured plasma AG, UAG and GH concentrations and tissue (stomach, pituitary and hypothalamus) preproghrelin and GOAT mRNA in non-pregnant (NP) and pregnant (P), WT and KO mice. RESULTS GOAT deletion was associated with undetectable concentrations of AG. UAG concentrations were similar in all groups. In both WT and KO animals, mean GH concentrations increased 30 to 50 times during pregnancy. There was a tendency toward lower median GH concentrations in KO (301 ng/mL) compared to WT (428 ng/mL) mice (p=0.059). Preproghrelin expression was not affected by GOAT deletion or by pregnancy in the stomach. In contrast, pituitary and hypothalamic ghrelin gene expression were lower in KO-NP and KO-P mice compared to their WT counterparts. CONCLUSION The complete absence of ghrelin acylation, which is associated with undetectable AG concentrations, does not prevent the marked increase in pituitary GH concentrations observed in pregnant mice, suggesting that AG is not the major mediator of GH secretion during pregnancy.
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Affiliation(s)
- Arjun Trivedi
- Child & Family Research Institute, Vancouver, BC, Canada V5Z 4H4; University of British Columbia, Vancouver, BC, Canada V6T 1Z4; BC Children's Hospital, Vancouver, BC, Canada V6H 3V4.
| | - Sandra Babic
- Child & Family Research Institute, Vancouver, BC, Canada V5Z 4H4
| | - Mark Heiman
- MicroBiome Therapeutics, Broomfield, CO 80021, USA
| | - William T Gibson
- Child & Family Research Institute, Vancouver, BC, Canada V5Z 4H4; University of British Columbia, Vancouver, BC, Canada V6T 1Z4; BC Children's Hospital, Vancouver, BC, Canada V6H 3V4
| | - Jean-Pierre Chanoine
- Child & Family Research Institute, Vancouver, BC, Canada V5Z 4H4; University of British Columbia, Vancouver, BC, Canada V6T 1Z4; BC Children's Hospital, Vancouver, BC, Canada V6H 3V4
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Babic S, Jezova D. Effect of phenytoin treatment on cell proliferation in the hippocampus and the heart and related neuroendocrine changes under non-stress and stress conditions. Neurol Res 2013; 36:112-7. [DOI: 10.1179/1743132813y.0000000278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Matic P, Tanaskovic S, Babic S, Gajin P, Jocic D, Nenezic D, Ilijevski N, Vucurevic G, Radak D. In situ revascularisation for femoropopliteal graft infection: ten years of experience with silver grafts. Vascular 2013; 22:323-7. [DOI: 10.1177/1708538113504399] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose The purpose of this study was to analyze clinical outcome of patients for femoropopliteal graft infection who were treated by in situ reconstruction with a silver-coated prosthesis. Basic methods From December 2001 to December 2011, 27 patients were treated for femoropopliteal graft infection. Twenty patients (74%) were male and seven (26%) were female. Mean age was 65 years. The primary endpoint was recurrence of infection. Secondary endpoints were early and late mortality and morbidity, primary graft patency, major amputation rates and patient survival. Principal findings Early reinfection occurred in 11% and late in 8% of patients. Perioperative mortality was 7% and late was 4%. Above-knee amputation was performed in 4% of patients during early postoperative course and in 12% of patients during follow-up. Early and late graft patency was 96% and 72%, respectively. Conclusions Results of in situ implantation of silver-coated grafts for femoropopliteal prosthesis infection are according to our opinion acceptable, but the risk of reinfection remains.
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Affiliation(s)
- P Matic
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
| | - S Tanaskovic
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
| | - S Babic
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
| | - P Gajin
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
| | - D Jocic
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
| | - D Nenezic
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
| | - N Ilijevski
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
| | - G Vucurevic
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
| | - Dj Radak
- Cardiovascular Institute Dedinje, Vascular Surgery Clinic, Medical School, University of Belgrade, Belgrade, Serbia
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Pombo S, Jakovljevic M, Jovanovic M, Babic S, Rancic N, Lesch O, Salem B, Karam E, Walter H, Patek K. S08 * SUBGROUPS OF ADDICTION AND THEIR SPECIAL TREATMENT. Alcohol Alcohol 2013. [DOI: 10.1093/alcalc/agt081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Gajin P, Radak D, Tanaskovic S, Babic S, Nenezic D. Urgent carotid endarterectomy in patients with acute neurological ischemic events within six hours after symptoms onset. Vascular 2013; 22:167-73. [DOI: 10.1177/1708538113478760] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To analyze the outcome of urgent carotid endarterectomy (CEA) performed within less than six hours in patients with crescendo transient ischemic attack (TIA) and stroke in progression. From January 1998 to December 2008, 58 urgent CEAs were done for acute neurological ischemic events – 46 patients with crescendo TIA and 12 patients with stroke in progression. Brain computed tomography (CT) was done prior and after the surgery. Disability level was assessed prior to and after urgent CEA using modified Rankin scale. Median follow-up was 42.1 ± 16.6 months. In the early postoperative period stroke rate was 0% for the patients in crescendo TIA group while in patients with stroke in progression group 3 patients (25%) had positive postoperative brain CT, yet neurological status significantly improved. Mid-term stroke rate was 2.2% in crescendo TIA group and 8.3% in stroke in progression group. In the early postoperative period there were no lethal outcomes, mid-term mortality was 8.3% in stroke in progression while in crescendo TIA group lethal outcomes were not observed. In conclusion, based on our results urgent CEA is a safe and effective treatment option for patients with crescendo TIA and stroke in progression with acceptable rate of postoperative complications.
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Franklin M, Bermudez I, Hlavacova N, Babic S, Murck H, Schmuckermair C, Singewald N, Gaburro S, Jezova D. Aldosterone increases earlier than corticosterone in new animal models of depression: is this an early marker? J Psychiatr Res 2012; 46:1394-7. [PMID: 22901774 DOI: 10.1016/j.jpsychires.2012.07.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 07/13/2012] [Accepted: 07/16/2012] [Indexed: 11/26/2022]
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Babic S, Ondrejcakova M, Bakos J, Racekova E, Jezova D. Cell proliferation in the hippocampus and in the heart is modified by exposure to repeated stress and treatment with memantine. J Psychiatr Res 2012; 46:526-32. [PMID: 22297273 DOI: 10.1016/j.jpsychires.2012.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 12/21/2011] [Accepted: 01/05/2012] [Indexed: 12/28/2022]
Abstract
The present studies were aimed to verify the hypothesis that treatment with memantine, a low affinity NMDA glutamate receptor antagonist, can reduce possible stress-induced alterations in cell proliferation in the hippocampus and in the heart and has consequences on stress hormone release. Adult male Wistar rats were exposed to repeated hypokinesis (movement restraint, 2 h daily) or remained undisturbed and they were treated with memantine (5 mg/kg/day, s.c.) or vehicle for 8 days. On the day 7, all animals were injected with 5-bromo-2'-deoxyuridine (BrdU), a marker of cell proliferation. The mild form of chronic stress used resulted only in moderate decrease in BrdU incorporation into DNA in the hippocampus, while the same stimulus caused a pronounced reduction of the new cells formed in left heart ventricle. In both tissues, stress-induced reduction in cell proliferation was more evident in memantine-treated rats. Memantine failed to modify hormones of the hypothalamic-pituitary-adrenocortical axis, while the treatment increased plasma renin activity. The present study demonstrates that treatment with memantine potentiated rather than prevented stress-induced reduction of cell proliferation. We have shown that stress exposure may induce a reduction in cell proliferation in the heart, even in a higher extent than that in the hippocampus. Effects of memantine under stress conditions might be relevant with respect to clinical use of memantine, which is being used in the treatment of neurodegenerative diseases.
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Affiliation(s)
- S Babic
- Laboratory of Pharmacological Neuroendocrinology, Institute of Experimental Endocrinology, Slovak Academy of Sciences, Vlarska 3, Bratislava 833 06, Slovakia
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Trivedi A, Babic S, Chanoine JP. Pitfalls in the determination of human acylated ghrelin plasma concentrations using a double antibody enzyme immunometric assay. Clin Biochem 2012; 45:178-80. [DOI: 10.1016/j.clinbiochem.2011.10.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/19/2011] [Accepted: 10/22/2011] [Indexed: 10/15/2022]
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Radak D, Babic S, Ilijevski N, Jocic D, Aleksic N, Gajin P, Tanaskovic S, Lozuk B, Otasevic P. Surgical reconstruction for unilateral iliac artery lesions in patients younger than 50 years. VASA 2011; 40:474-81. [PMID: 22090181 DOI: 10.1024/0301-1526/a000151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND To evaluate safety, short and long-term graft patency, clinical success rates, and factors associated with patency, limb salvage and mortality after surgical reconstruction in patients younger than 50 years of age who had undergone unilateral iliac artery bypass surgery. PATIENTS AND METHODS From January 2000 to January 2010, 65 consecutive reconstructive vascular operations were performed in 22 women and 43 men of age < 50 years with unilateral iliac atherosclerotic lesions and claudication or chronic limb ischemia. All patients were followed at 1, 3, 6, and 12 months after surgery and every 6 months thereafter. RESULTS There was in-hospital vascular graft thrombosis in four (6.1 %) patients. No in-hospital deaths occurred. Median follow-up was 49.6 ± 33 months. Primary patency rates at 1-, 3-, 5-, and 10-year were 92.2 %, 85.6 %, 73.6 %, and 56.5 %, respectively. Seven patients passed away during follow-up of which four patients due to coronary artery disease, two patients due to cerebrovascular disease and one patient due to malignancy. Limb salvage rate after 1-, 3-, 5-, and 10-year follow-up was 100 %, 100 %, 96.3 %, and 91.2 %, respectively. Cox regression analysis including age, sex, risk factors for vascular disease, indication for treatment, preoperative ABI, lesion length, graft diameter and type of pre-procedural lesion (stenosis/occlusion), showed that only age (beta - 0.281, expected beta 0.755, p = 0.007) and presence of diabetes mellitus during index surgery (beta - 1.292, expected beta 0.275, p = 0.026) were found to be significant predictors of diminishing graft patency during the follow-up. Presence of diabetes mellitus during index surgery (beta - 1.246, expected beta 0.291, p = 0.034) was the only variable predicting mortality. CONCLUSIONS Surgical treatment for unilateral iliac lesions in patients with premature atherosclerosis is a safe procedure with a low operative risk and acceptable long-term results. Diabetes mellitus and age at index surgery are predictive for low graft patency. Presence of diabetes is associated with decreased long-term survival.
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Affiliation(s)
- D Radak
- Institute for Cardiovascular Disease, Dedinje, Belgrade, Serbia
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Radak D, Kolar J, Tanaskovic S, Sagic D, Antonic Z, Mitrasinovic A, Babic S, Nenezic D, Ilijevski N. Morphological and haemodynamic abnormalities in the jugular veins of patients with multiple sclerosis. Phlebology 2011; 27:168-72. [DOI: 10.1258/phleb.2011.011004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Objectives Multiple areas of stenosis and different levels of obstruction of internal jugular and azygous veins (a condition known as cronic cerebrospinal venous insufficiency) recently emerged as an additional theory to the well-known autoimmune concept, explaining etiology of multiple sclerosis (MS). The aim of our study was to evaluate internal jugular vein (IJV) morphology and haemodynamic characteristics in patients with MS and compare it with well-matched healthy individuals and to evaluate the prevalence of venous flow abnormalities in both groups. Methods Sixty-four patients with clinically proven MS and 37 healthy individuals were included in our study. In all patients, IJV morphology and haemodynamic characteristics were evaluated by colour Doppler sonography as well as venous flow disorder. The patients were classified into four groups according to MS clinical form presentation. The prevalence of morphological and haemodynamic abnormalities in the IJV were assessed. Results The presence of stenosing lesion, mostly intraluminal defects like abnormal IJV valves, were observed in 28 patients (43%) in the MS group, and in 17 patients (45.9%) in the control group ( P = NS). By adding haemodynamic Doppler information in the IJV venous outflow was significantly different in 42% of MS patients showing flow abnormalities (27/64), as compared with 8.1% of the controls (3/37), P < 0.001. Conclusion In our group of patients, patients suffering from MS had significantly more IJV morphological changes and haemodynamic abnormalities when compared with healthy individuals not suffering from MS. These findings can be well demonstrated by non-invasive and cost-effective Doppler ultrasound.
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Affiliation(s)
- D Radak
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
| | - J Kolar
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
| | - S Tanaskovic
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
| | - D Sagic
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
| | - Z Antonic
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
| | - A Mitrasinovic
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
| | - S Babic
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
| | - D Nenezic
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
| | - N Ilijevski
- Vascular Surgery Clinic, Dedinje Cardiovascular Institute, School of Medicine, Belgrade University, Heroja Milana Tepića 1 Street, Belgrade, Serbia
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Babic S, Hajdok G, Jordan K. SU-E-T-408: RapidArc Dose Verification Using Ferrous Xylenol-Orange Gels and Optical CT. Med Phys 2011. [DOI: 10.1118/1.3612362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Babic S, Jordan K. Poster - Thur Eve - 06: Radiochromic Film Densitometry with Vista15 Optical Cone Beam CT Scanner. Med Phys 2010. [DOI: 10.1118/1.3476111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Babic S, Battista J, Jordan K. Sci-Fri PM: Planning-07: A low diffusion radiochromic gel dosimeter for three-dimensional radiation dosimetry. Med Phys 2008; 35:3413. [DOI: 10.1118/1.2965979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Jordan K, Babic S, Chen J, Battista J. SU-FF-T-117: Comparison of 3D Dose Measurements in Ferrous Xylenol Orange Gels with Mapcheck Diode Array and Pinnacle3 Dose Calculations. Med Phys 2007. [DOI: 10.1118/1.2760774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Babic S, Battista J, Jordan K. SU-FF-T-72: An Intercomparison of RPC Verified IMRT Plans with Ferrous Xylenol Orange Gels and Optical CT Scanners. Med Phys 2007. [DOI: 10.1118/1.2760723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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McNiven A, Babic S, Jordan K, Battista J. SU-FF-T-03: 3D Characterization of Small Megavoltage Radiation Fields Using An Optical CT Scanner with Ferrous Xylenol Orange Gels. Med Phys 2007. [DOI: 10.1118/1.2760648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Babic S, Battista J, Jordan K. Sci-Fri AM General-10: An Apparent Threshold Dose Effect in Radiochromic Gel Dosimeters. Med Phys 2006. [DOI: 10.1118/1.2244675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Babic S, Jordan K, Battista J. WE-D-T-617-02: The Dose Response of Radiochromic Gel Dosimeters: Dose Fractionation Effects. Med Phys 2005. [DOI: 10.1118/1.1998562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Tezak B, Matijevic E, Shulz K, Mirnik M, Herak J, Vouk VB, Slunjski M, Babic S, Kratohvil J, Palmar T. The Mechanism of Coagulation of Lyophobic Sols as Revealed Through Investigations of Silver Halide Sols in Statu Nascendi. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j150504a009] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Oreskovic S, Majdak P, Strnad M, Babic S. Opinion of patients on the quality of hospital care. Natl Med J India 2001; 14:246-7. [PMID: 11547534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
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Babic S, Hunter CN, Rakhlin NJ, Simons RW, Phillips-Jones MK. Molecular characterisation of the pifC gene encoding translation initiation factor 3, which is required for normal photosynthetic complex formation in Rhodobacter sphaeroides NCIB 8253. Eur J Biochem 1997; 249:564-75. [PMID: 9370368 DOI: 10.1111/j.1432-1033.1997.t01-1-00564.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In order to determine whether translation initiation events play a selective role in regulating the expression of photosynthetic complexes in the photosynthetic bacterium Rhodobacter sphaeroides, we have undertaken an initial study to investigate the potential role of translation initiation factor IF3, which also behaves as a pleiotropic regulatory factor in some bacteria. Following the isolation and purification of a 24-kDa IF3-like protein (PifC) from R. sphaeroides, we used nested PCR to clone and characterise the encoding gene, pifC (photosynthesis-affecting initiation factor). The 545-bp pifC encodes a protein exhibiting 60% identity (78.6% similarity) with the Escherichia coli IF3 (InfC) protein and, in common with all other IF3 genes identified to date, pifC possesses a rare initiation codon (AUA). Furthermore, in common with IF3, PifC was shown here to perform a discriminatory function towards CUG start codons, confirming its role and function as an IF3 in R. sphaeroides. Insertion of a kanamycin resistance cassette into the 5' end of pifC resulted in a viable phenotype which exhibits growth rates similar to wild type but which possesses reduced bacteriochlorophyll and photosynthetic complexes in semi-aerobic cultures. It is shown here that the mutant is still able to produce a PifC protein but that it possesses reduced IF3 activity. This may account for the viable nature of the mutant strain, and may indicate that the effect of the mutation on photosynthesis can be more severe than shown in the present study. The mechanisms by which PifC may exert its selective regulatory effect on photosynthesis expression are discussed.
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Affiliation(s)
- S Babic
- Department of Microbiology, University of Leeds, UK
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Hempel V, Babic S. Das „künstliche Pankreas” in der operativen Intensivmedizin - ein rechnergesteuertes Infusionspumpensystem für Glukose und Insulin mit einem kontinuierlich messenden Glukosesensor. Anasthesiol Intensivmed Notfallmed Schmerzther 1981. [DOI: 10.1055/s-2007-1005388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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