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Background: The aim of the study was to find out what happens to erythrocytes and their forms during life and after death as a result of high water temperature.Methods: Heat stress was used on a rat model.to investigate the effects of different temperature intensities (37°C and 44°C) and exposure time (20 min and until the time of death) on erythrocyte morphology. Total of 23 Wistar rats were divided into two groups: 37°C as control group and 44°C as trial groups. The trial groups were classified into antemortem the exposure time of 20 min and postmortem groups exposure time until fatal outcome. The anaesthetised rats were exposed to preheated water using the water bath. May-Grünwald-Giemsa colouring technique was applied on blood samples taken from the abdominal aorta. Results: Exposure of Wistar rats to water temperature in groups KG37 and G44 led to a significant changes in core temperature. In the control group, the thermoregulatory mechanism established normothermia, and in G44 hyperthermia was detected during 20 minutes of exposure. The frequency of heat stroke in group G44 was 43.8%. Target cells and anulocytes were predominant in antemortem group at 44°C, while anulocytes and spherocytes in postmortem groups 44°C, respectively. Dacryocytes with spherocytes were significantly higher in postmortem group 44°C than in antemortem group 44°C (p=0.002, p=0.017, respectively).Conclusions: Poikilocytosis is associated with the exposure length and temperature intensity. Following a fatal outcome dacryocytes with spherocytes at 44°C were significantly more than in corresponding antemortem groups.

M. Kati̇ca, Z. Obradović, M. Abdalaziz, Amela Bajrić, Amina Lučkin

Introduction/Objective Cat bites can seriously harm human health, especially if the bite comes from a stray or feral cat who is not under veterinary supervision. Cat bites are the second most common mammal bites, second only to dog bites, and responsible for ¾ of all bites that result in infection. We are presenting the case of a young woman whose hand had been bitten by a stray or feral cat. The objective of this case study is to stress the importance of timely medical treatment and wound management based on guidelines for treating bites inflicted by stray or feral cats, aiming to prevent possible complications. Case report A 32-year-old woman was admitted and examined in the University of Sarajevo Clinical Centre Emergency Department on the third day after being bitten by a stray or feral cat, by which time all signs of inflammation had already developed at the site of the injury-her right hand. Medical help was provided based on guidelines that included specific wound dressings recommended for animal bites, a prescription of antibiotics, analgesics and an anti-tetanus shot. The patient fully recovered with no complications. Conclusion The specific anatomy of the cat's canines enables them to penetrate deeply into the bitten tissue, which can cause an innoculation of a wide range of microorganisms from the cat's mouth into the patient's bloodstream. This can cause serious inflammatory processes, especially in immunocompromised patients. Adequate medical treatment of injuries resulting from cat bites is necessary as soon as possible, but no later than 48 hours after the incident.

Athletes who train in public places in urban and rural areas are just as attacked and injured by dogs of known owners as they are by dogs with no owners, in a relatively equal proportion. The largest number of bites occurs in the summer, what makes up half of all bites, just when sports activity is most pronounced. Athletes who are most often exposed to potential attacks and bites are cyclists, long-distance athletes, marathon runners, recreational athletes, etc. both during training and competitions. Off-road cyclists are at a significantly higher risk of dog attacks because cycling takes place off-road, that is, away from urban areas. Dog attacks can adversely affect the psycho-physical readiness of athletes. In Bosnia and Herzegovina there have been no cases of injuries to athletes recorded by competent medical institutions or umbrella sports associations. It is necessary to work on more efficient administration (registration and recording of attacks and bites of dogs). It is of utmost importance to educate athletes on dog behaviour, the reasons for their aggressive behaviour and causal mechanisms of dog attacks as well as the first aid education, what can have a great impact on reducing further complications.

Adna Bešić, S. Karakaš, K. Čaklovica, Adisa Musovic, Mehmed Sultanović, A. Smajlović, M. Kati̇ca

Motivation/Background: positive staphylococci (CPS) are common contaminants of raw milk. Before it is used, various heat treatments are applied to destroy microorganisms, inactivate enzymes and improve technological properties and concentration of dry matter of milk. This work aimed to determine the influence of commonly used heat treatments in diary on presence and number CPS in raw milk from Bosnia and Herzegovina area and to affirm whether there is a difference in efficacy between different treatments. Method: Using the standard method, 40 samples of raw milk from farms were inoculated for counting the initial number of CPS in raw milk. Samples were then exposed to heat treatments in vapor sterilizer and CPS number was counted using the same standard method. Results: Applied treatments included heat treatments at: 68 °C/40 s, 70 °C/15 s, 72 °C/without holding, 63 °C/30 min and 72 °C/15 s. CPS presence was detected in all tested samples of raw milk in numbers ranging from 2,82 to 5,32, with an average of 4,30, calculated as log10 /ml. Conclusions: Raw milk samples collected in the field initially registered a high CPS number. The applied heat treatments were effective to a large extent. The initial CPS count of milk seems to be the most important factor determining the number of CPS after heat treatments as well as traits of the strains.

Amela Bajrić, S. Delibegović, E. Čičkušić, M. Kati̇ca, Mujo Sivić

Background and Objectives: Titanium DS clips are made to secure the appendiceal stump during laparoscopic appendectomy. The assumption is that they behave like stapler clips in the body, being made from titanium. However, the construction and weight of DS clips differs from staplers. Their biocompatibility may have implications for their clinical use. Methods: One hundred and twenty rats were randomized into four experimental groups: in the first group the appendiceal stump was secured by Vicryl® ligature, in the second by linear staplers, in the third by Hem-o-lok® plastic clips, and in the fourth by DS titanium clips. Ten animals from each group were sacrificed 7, 28, and 60 days post-surgery. Histopathological data and adhesion formation were assessed. Results: On postoperative day 7, a statistically significant difference was found in the occurrence of inflammation between the Hem-o-lok® and stapler groups. The adhesion score was significantly higher in the Vycril® and Hem-o-lok® in comparison to the DS and stapler groups. On postoperative day 28, a statistically significant difference was found in the occurrence of inflammation between the Vycril® and stapler groups. The adhesion score was significantly higher in the Vycril® than in the DS and stapler groups. On postoperative day 60, there were no statistical differences between any of the groups. The adhesion score was significantly higher in the Hem-o-lok® group in comparison to the DS and stapler groups. Conclusion: Staplers and DS clips have advantages over other methods of securing the appendiceal stump, because of their high biocompatibility and lower adhesion score.

Amela Bajrić, M. Kati̇ca, A. Katica, Alisa Smajović, Mujo Sivić, D. Rukavina, Mirza Čelebičić, A. Zahirović et al.

Introduction: The technique of closing the appendiceal stump using linear titanium stapler clips is being used more and more frequently in laparoscopic surgery, despite the good practice in the use of resorbable single endoloop vicryl ligatures and/or the non-resorbable plastic hem-o-lok clips. No light has been shed on potential undesirable effects on the haemathological profile of the use of titanium stapler clips. This experimental study aimed at establishing any possible undesirable effect of linear titanium stapler clips and single resorbable vicryl endoloop ligatures on the blood cells in rats following appendectomy. Methods: A total of 70 adult rats were used, divided into a control group (n = 10), and two experimental groups (n = 30 + 30). The appendices were removed from the rats in the first experimental group using titanium stapler clips and in the second experimental group the appendiceal stump using resorbable endoloop vicryl ligatures was closed. In both experimental groups three sub-groups with ten animals each were formed, from which peripheral blood from a tail vein on days 7, 28 and 60 was removed postoperatively, in order to assess the usual haematological parameters. Stained blood smears were also analysed in order to establish any poikilocytotic erythrocytes present. Results: In the first experimental group, with the titanium stapler clips, more than 25 % neutrophils were found on day 7, which is a significantly different result (p < 0.05) to the control group. In the second experimental group, there were more neutrophils than in the titanium stapler clips group, especially on days 7 and 60 and the results of these two sub-groups differ statistically significantly, p < 0.05. Hypochromia was found in the endoloop vicryl ligatures group, as well as in the titanium stapler clips sub-group on day 28, due to lower haemoglobin values which were significantly different to the control group, p < 0.05. Moderate levels of annulocytes, spherocytes and stomatocytes were found in most experimental groups. Conclusion: The results of this study favour the use of linear titanium stapler clips over resorbable single endoloop vicryl ligatures, because a less unfavourable effect was established on the blood cells of the experimental rats with their use.

M. Kati̇ca, Nasreldin Hassan Ahmed, N. Gradaščević, A. Salki̇ć, E. Dervišević

The study of crystalluria is of great importance for the detection of substances of endogenous or exogenous origin that are present inthe urine, to a greater or lesser extent. Urinary sediment crystals can provide valuable answers for the assessment of therapeutic efficacy, as well as congenital and/or acquired pathophysiological conditions. The nature of the observed crystals informs the clinician of the biochemical irregularity of the urine. Crystalluria is of clinical significance only if it has been studied under good test conditions (sample selection, time and storage conditions). Crystalluria interpretations are performed on the basis of the urinary pH determined with statistically significant reliability. When studying crystalluria by light microscopy, it is necessary to provide light polarization or bidirectional illuminationin order to reduce the risk of diagnostic error.

M. Kati̇ca, Z. Obradović, Nasreldin Hassan Ahmed, E. Mehmedika-Suljić, Žana Stanić, Rowida Seifeldin Abdalaziz Mohamed, E. Dervišević

The coexistence of humans and dogs, in addition to all positive effects, can result in negative effects on human health. A particular risk is posed by a population of stray dogs, that is, dogs without owners and veterinary supervision. A contact with dogs in addition to bites, carries the risk of viral, bacterial and parasitic zoonoses, and can also cause psychological trauma. Children, the elderly and pregnant women are the categories most susceptible to the negative effects of dogs. The aim of the paper was to make an interdisciplinary analysis of the negative effects of dogs on humans. Dog bites cause wounds and dysfunction of damaged tissue, and often lead to various infections. The risks of rabies and tetanus are particularly significant if proper and timely treatment is not performed. Ongoing training for dog owners can significantly reduce the number of bites inflicted by owned dogs, but stray dogs remain a serious social problem and pose potential health risks of some zoonosis. Timely and adequate management of bite wounds and the use of rabies-post-exposure prophylaxis as well as psycho-therapy, where indicated, significantly reduce possible adverse health effects for patients who have been bitten by dogs.

M. Kati̇ca, Filiz Tepekoy

Derived from mesenchymal stem cells (MSCs) under the influence of various local factors and growth hormones, osteoblasts are one of the leading components of the bone tissue. 1,25-dihydroxyvitamin D3 (calcitriol), an active form of vitamin D, plays an important role in retaining calcium and phosphate homeostasis within the body. Since vitamin D is also known to have effects on cell proliferation, our study aimed to investigate the effects of different concentrations of calcitriol on the proliferation of in vitro cultured osteoblast-like cells from the bone marrow of 90-95 days old young adult rats of both sexes. Calcitriol was applied at six (6) different concentrations (nM): 0.1, 1, 10, 20, 40 i 60. Each concentration was tested four times, counting the cells after 24 and 48 hours. After 24 and 48 hours treatment, the most effective dose of calcitriol for cell proliferation was 0.1 nM for both males and females. The greatest reduction in the frequency of OB-like cells from both sexes after treatment of 24 and 48 hours, was a 60 nM calcitriol concentration. Higher proliferative values of osteoblast-like cells were obtained in males compared to those obtained in females. Thus, the results of the current study reveal that calcitriol treatment induces the proliferation of osteoblast-like cells in a dose-dependent manner and this effect shows difference in cells from different genders.

Alisa Smajović, M. Kati̇ca, D. Završnik, E. Veljović, K. Čaklovica

Ksanten turevleri, dogal, yari sentetik ve sentetik kokenli olabilen siklik, organik bilesikleri temsil eder. Bu bilesikler, antibakteriyel, antiviral ve antienflamatuar ozellikler gibi cesitli farmakolojik aktiviteler nedeniyle dikkat cekmektedirler. Ayrica, ilaca direncli losemi hatlari icin ve fotodinamik tedavide antagonistler olarak kullanilmaktadirlar. Ayrica lazer teknolojisinde boyalar ve biyomolekullerin gorsellestirilmesi icin pH'a duyarli floresan malzemeler olarak uygulanirlar. Veteriner hekimlik alaninda yeni hastaliklar nedeniyle, bu bilesiklerin uygulanmasi cok faydali olabilir ve literaturde Veteriner arastirma alanindaki benzer bilesiklerin aktivitesi aciklanmaktadir. Bu derlemede ksanten turevlerinin antibakteriyel, antifungal, antihelmintik, antiprotozoal, antikanserojenik ve antidiyabetik aktivite gibi en onemli aktiviteleri ve etki mekanizmalari sunulmustur.

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