M Petrović

University of Belgrade, Beograd, Central Serbia, Serbia

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Publications (321)214.22 Total impact

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    ABSTRACT: This study investigated the effects of different feeding systems (free-range versus conventional rearing) on carcass characteristics, chemical composition, fatty acid profile and cholesterol content of the musculus longissimus lumborum et thoracis (MLLT) of Mangalitsa pigs. Depending on the rearing system employed and live weight observed, we found statistically significant differences in the weight of the warm and cold Mangalitsa carcasses. Furthermore, we observed that conventionally reared Mangalitsa pigs weighed more. Measurements showed that the free-range-fed pigs had a lower total backfat thickness in comparison with the group reared in the conventional system, but that these differences were not significant. Outdoor rearing of the pigs led to higher protein, ash and water contents, and to a decrease in total fat content and pH values of the MLLT. The choice of rearing system did not significantly affect the cholesterol content. The fat of the free-range pigs had a higher concentration of n-3 and n-6 polyunsaturated fatty acids (PUFA), while the n-6/n-3 PUPA ratio was significantly lower than in conventionally reared pigs. The proportion of PUFA/SFA (saturated fatty acids) was not significantly different, whereas the proportion of monounsaturated fatty acids (MUFA/SFA) was significantly lower in the free-range group. It is concluded that the rearing system affects the carcass properties and chemical characteristics of Mangalitsa meat; it does so in particular by improving the fatty acid composition in free-range pigs.
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  • 01/2014; 30(4):687-697. DOI:10.2298/BAH1404687G
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    ABSTRACT: Infections associated with medical procedures, or hospital-acquired infections (HAIs), occur in all hospitals worldwide. An integrated infection-control program with HAI surveillance as its cornerstone can reduce the incidence of HAIs and contribute to economic benefits. The aim of this paper was to report the prevalence and epidemiological features of HAI in hospitals in Vojvodina, Serbia. The study population examined herein was compromised of all of the patients present in the ward at least 48 hours before the day of surveillance. It also included patients that were scheduled for discharge or transfer, and those temporarily absent from the ward for examinations or diagnostic procedures. Data were collected using uniform questionnaires, created by the scientific board of the study. Data from paper questionnaires were entered into a specially created electronic database and analyzed using standard statistical methods. A total of 2 435 patients were included in the study. The frequency of patients with HAI was 6.6% (95% CI: 5.6%-7.6%), and the prevalence of infection was 7.1% (95% CI: 6.1%-8.1%). HAT prevalence was significantly different depending on the ward, ranging from 1.7% in the gynecology department to 18.1% in intensive care departments. The most common type of HAT was pneumonia, representing 20.9% of all reported HAIs. The second most frequently reported type of HAI was surgical site infection (19.8%), followed by urinary tract infection (17.4%), gastro-intestinal infection (14.5%) and bloodstream infection (11.0%). The most commonly found microorganisms were Enterococcus spp. (14.5%), Klebsiella pneumoniae (14.5%), Acinetobacter spp. (13.7%), coagulase-negative Staphylococcus spp. (12.1%), Pseudomonas aeruginosa (10.5%) and Clostridium difficile (7.3%). The most frequently used antibiotics in therapy were third generation cephalosporins to which most of the isolates showed resistance. Although the consumption of carbapenems in this sample was only 8%, the registered carbapenem resistance in some bacteria indicates more frequent and longer use of carbapenems in hospitals with the side effect of selective pressure.
    Archives of Biological Sciences 01/2014; 66(2):523-535. DOI:10.2298/ABS1402523C · 0.61 Impact Factor
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    ABSTRACT: A recurrent incisional hernia resulting from the rupture of low-weight polypropylene mesh is rarely reported in the literature. Three patients with recurrent incisional hernia due to low-weight polypropylene mesh central rupture were operated 5, 7 and 13 months after initial sublay hernioplasty. The posterior myofascial layer was fully reconstructed in all patients during the hernioplasty, whereas the anterior myofascial layer was only partially reconstructed. The recurrent hernia was managed using heavy-weight polypropylene mesh; in two patients, a new sublay hernioplasty was performed and in one patient an "open preperitoneal flat mesh technique" was performed under local anaesthesia as a day case procedure. If closing of the anterior myofascial layer cannot be ensured during the incisional hernioplasty, the use of low-weight polypropylene meshes should be avoided; preference should be given to the heavy-weight polypropylene meshes.
    Hernia 12/2013; 18(1). DOI:10.1007/s10029-013-1197-1 · 2.09 Impact Factor
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    ABSTRACT: In this paper, results of the comparative investigation of fatty acid profile, cholesterol content, atherogenic (IA) and thrombogenic (IT) health lipid indices of four different fermented dry sausages made of Mangalitsa and Swedish Landrace pork meat are presented. The highest cholesterol content (64.92 mg/100g) was found in Sremska sausage made from the meat of Landras pigs. The levels of PUFA in sausages made of Landras pork meat were significantly higher than levels in other types. These differences were mainly produced by higher total n- 6 PUFA content. However, the MUFA and USFA levels were highest in sausages made from the Mangalitsa pork meat. The highest SFA content was noted in sausages made from the meat of Landrace pigs. On the other hand, the IA, IT and PUFA/SFA ratio are more favourable in fermented sausages made of Mangalitsa pork meat.
    59th International Congress of Meat Science and Technology (ICOMST), Izmir, Turkey; 08/2013
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    ABSTRACT: The aim of this study was to examine variability in chemical and cholesterol content, fatty acid composition in musculus longissimus lumborum et thoracis (MLLT) and pH in MLLT and musculus semimembranosus (MS) of various genotypes of pigs. Out of 30 male castrated animals used in the trial, 20 were Mangalitsa pigs (Swallow Belly - SBM and White - WM) while 10 were of the Swedish Landrace breed - SL (the most frequent meat/fattening breed in Serbia). The initial (pH45) and final (pH24) values of MLLT and MS clearly differed depending on the genotype of pigs, WM and SBM. The total fat content was higher in WM and SBM pigs, compared to SL pigs (P < 0.001 and P < 0.01, respectively). The SL pigs had a higher percentage of water in MLLT, than SBM and WM (P < 0.001). In our research, WM pigs had lower protein content in MLLT compared to SL pigs (P < 0.01). The representative of pig meat breeds, SL had significantly less cholesterol in MLLT compared to SBM and WM pigs (- 14.83% and -15.44%, P < 0.001). However, differences in the content of saturated and unsaturated fatty acids were more expressed and distinct. A higher percentage of saturated fatty acids (SFA) and polyunsaturated fatty acids (PUFA) were established in MLTT originating from SL pigs compared to both Mangalitsa strains (P < 0.001). The total monounsaturated fatty acids (MUFA) and unsaturated fatty acids (USFA) content was higher in SBM and WM than in SL pigs (P < 0.001).
    International 57th Meat Industry Conference, Belgrade, Serbia, Belgrade, Serbia; 06/2013
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    ABSTRACT: The aim of this study was to examine carcass properties and variability in chemical content and fatty acid composition in the musculus longissimus lumborum et thoracis (MLLT) of different genotypes of pigs. Of 36 male castrated animals used in the trial, 24 were from two strains of Mangalitsa pigs (12 Swallow - bellied (SBM) and 12 White (WM)), while 12 were of the Swedish Landrace (SL) breed (the most abundant meat/fattening breed in Serbia). The warm and cold carcass weights at slaughter were significantly higher in the WM and SL compared with the SBM. Results showed differences in warm and cold carcass dressing percentage between the groups. The SBM had significant lower values than WM and SL pigs. The total fat content was higher in WM and SBM pigs than SL pigs. The SL pigs had a significant higher percentage of water in their MLLT than the SBM and WM pigs. The representative of pig meat breeds, SL, contained significantly less cholesterol in its MLLT compared with the SBM and WM (-15.23% and -15.84%). However, differences in the content of saturated and unsaturated fatty acids were more expressed and distinct. A higher percentage of saturated fatty acids (SFA) and polyunsaturated fatty acids (PUFA) were present in MLTT originating from SL pigs compared with the two Mangalitsa strains. The total monounsaturated fatty acids (MUFA) content was higher in SBM and WM than in SL pigs. The alpha linolenic acid concentration (C18:3 n-3) was significantly higher in SBM than in WM and SL pigs.
    South African Journal Of Animal Science 06/2013; 43(2):123-136. DOI:10.4314/sajas.v43i2.2 · 0.35 Impact Factor
  • 01/2013; 29(1):1-17. DOI:10.2298/BAH1301001P
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    01/2013; 29(2):299-310. DOI:10.2298/BAH1302299S
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    01/2013; 29(1):75-82. DOI:10.2298/BAH1301075R
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    01/2013; 29(4):651-658. DOI:10.2298/BAH1304651S
  • 01/2013; 29(4):641-650. DOI:10.2298/BAH1304641S
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    ABSTRACT: Purpose: The aim of this study was to evaluate the clinical reliability of the immunoscintigraphy with iodinated monoclonal antibodies for the detection of metastases and recurrences of colon carcinomas. Methods: A total of 45 patients with colon carcinoma was investigated with gamma camera, after intravenous application of iodinated monoclonal antibodies. Results: The sensitivity of the method was 90%, specificity 86%, positive predictive value 93%, negative predictive value 80% and accuracy 87%. There was statistically significant relationship between immunoscintigraphic and ultrasonographic (US) findings (p=0.005). Also, there was significant relationship between immunoscintigraphy and Dukes stage (p=0.019). Tumor marker levels were not significantly correlated with immunoscintigraphic findings (p<0.05). Significant difference was noted in patients with positive findings for malignancy on US and immunoscintigraphic findings (p=0.006), i.e. patients with positive findings for malignancy had more frequently immunoscintigraphic findings of malignancy. Correlation with other diagnostic procedures (rectoscopy, colonoscopy, CT) did not show significant correlations. Conclusion: We conclude that immunoscintigraphy can be helpful in the detection of metastases and recurrences of colon carcinomas.
    Journal of B.U.ON.: official journal of the Balkan Union of Oncology 10/2012; 17(4):695-699. · 0.71 Impact Factor
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    ABSTRACT: The objective of this paper is to investigate variability in chemical composition, total fatty acid and cholesterol content in m. longissimus dorsi (MLD) of Mangalitsa, swallow-belly (LM) and white (BM), and Swedish Landrace pigs (SL). Compared to SL, the total fat content has been 14.2% higher in BM, while it has been 10.2% higher in LM. SL fatteners contained significantly less cholesterol in MLD compared to LM and BM (–13.6 and –14.8%, P≤0.05). A higher percentage of SFA (+8.5 and +10.1%, P≤0.05) and PUFA (+8.0 and +9.4%, P≤0.05) has been established in MLD, originating from SL fatteners, compared to both Mangalitsa strains. The total MUFA content was higher in LM and BM than in SL (P≤0.05). A phenotypic correlation between protein content and ashes with water content in MLD has been positive (0.81 and 0.88), while the correlation between water content and total fats has been found to be negative (–0.99). A negative phenotypic correlation between MUFA and SFA, as well as PUFA and MUFA (–0.97 and –0.98) has been established, statistically significant at the level of P≤0.001. A positive phenotypic correlation between PUFA and SFA (0.90), statistically significant at the level of P≤0.001, has been found.
    Acta Alimentaria 06/2012; 41(2):161-171. DOI:10.1556/AAlim.41.2012.2.3 · 0.43 Impact Factor
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    ABSTRACT: Cognitive impairment is present in up to 65 % of multiple sclerosis (MS) patients. The Brief Repeatable Battery of neuropsychological tests (BRB) is one of the most used neuropsychological tools for cognitive assessment in MS. However, relative lack of normative data limits its application in research and clinical practice. In order to obtain normative data for a Serbian population, we administered the BRB version A to 140 healthy subjects and assessed the influence of demographic factors such as gender, age, and education on the tests' scores. We also calculated corrections for these factors. Higher education was associated with better performance on all the tests. Age influenced all the tests, except the word list generation, higher age being associated with worse performance on all other tests. Women performed worse on the paced auditory serial addition test 2, no other gender differences were observed. Our data obtained for the Serbian population could further improve use of the BRB in clinical practice and for the research purposes, establishing cognitive evaluation as a part of standard neurological examination of MS patients.
    Neurological Sciences 05/2012; 33(6). DOI:10.1007/s10072-012-1099-5 · 1.50 Impact Factor
  • International journal of cardiology 02/2012; 156(2):219-21. DOI:10.1016/j.ijcard.2012.01.052 · 6.18 Impact Factor
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: This study investigated the effects of different feeding systems (free-range versus conventional rearing) on carcass characteristics, chemical composition, fatty acid profile and cholesterol content of the musculus longissimus lumborum et thoracis (MLLT) of Mangalitsa pigs. Depending on the rearing system employed and live weight observed, we found statistically significant differences in the weight of the warm and cold Mangalitsa carcasses. Furthermore, we observed that conventionally reared Mangalitsa pigs weighed more. Measurements showed that the free-range-fed pigs had a lower total backfat thickness in comparison with the group reared in the conventional system, but that these differences were not significant. Outdoor rearing of the pigs led to higher protein, ash and water contents, and to a decrease in total fat content and pH values of the MLLT. The choice of rearing system did not significantly affect the cholesterol content. The fat of the free-range pigs had a higher concentration of n-3 and n-6 polyunsaturated fatty acids (PUFA), while the n-6/n-3 PUFA ratio was significantly lower than in conventionally reared pigs. The proportion of PUFA/SFA (saturated fatty acids) was not significantly different, whereas the proportion of monounsaturated fatty acids (MUFA/SFA) was significantly lower in the free-range group. It is concluded that the rearing system affects the carcass properties and chemical characteristics of Mangalitsa meat; it does so in particular by improving the fatty acid composition in free-range pigs.
    South African Journal Of Animal Science 01/2012; 42(2):101-113. · 0.35 Impact Factor
  • 01/2012; 28(4):779-786. DOI:10.2298/BAH1204779R

Publication Stats

538 Citations
214.22 Total Impact Points

Institutions

  • 1994–2014
    • University of Belgrade
      Beograd, Central Serbia, Serbia
  • 1998–2013
    • Klinički centar Srbije
      • • Clinical Center of Serbia
      • • Klinicki centar Srbije
      • • Institute for Cardiovascular Diseases
      • • Institute of Haematology
      Beograd, Central Serbia, Serbia
    • Vojna akademija Beograd
      Beograd, Central Serbia, Serbia
  • 2012
    • Military Medical Academy
      Beograd, Central Serbia, Serbia
  • 2006–2011
    • Texas A&M University at Qatar
      Ad Dawḩah, Ad Dawḩah, Qatar
  • 2010
    • Institute for Cardiovascular Disease Dedinje
      Beograd, Central Serbia, Serbia
  • 2009
    • Institut za stočarstvo, Beograd-Zemun
      Beograd, Central Serbia, Serbia
  • 2008
    • Institute of Field and Vegetable Crops
      Varadinum Petri, Autonomna Pokrajina Vojvodina, Serbia
  • 2004–2007
    • Institute for Educational Research, Belgrade, Serbia
      Beograd, Central Serbia, Serbia
  • 2005
    • Technical University Darmstadt
      • Institut für Angewandte Physik
      Darmstadt, Hesse, Germany
  • 2003
    • Institute for Educational Research, Belgrade, Serbia
      Beograd, Central Serbia, Serbia
  • 2001
    • Roche Institute of Molecular Biology
      Nutley, New Jersey, United States
  • 1991–2000
    • Institute for Medical Research - Belgrade
      Beograd, Central Serbia, Serbia
  • 1996–1997
    • Institute of Physics Belgrade
      Beograd, Central Serbia, Serbia
  • 1989
    • The American Society for Biochemistry and Molecular Biology
      Belgrade, Montana, United States
  • 1983
    • Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira Página Inicial
      Brasília, Federal, Brazil