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Search Results: 1 - 10 of 34050 matches for " Sne ana Mari Krejovi "
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Effects of Tibolone on Markers of Bone Metabolic Activity in Postmenopausal Women
Sne ana Mari Krejovi , Aleksandar ivanovi , Sandra ivanovi , Rade Markovi
Journal of Medical Biochemistry , 2012, DOI: 10.2478/v10011-011-0050-2
Abstract: Osteoporosis, a systemic disease of the bones, is a serious health and socio-economic problem because of its consequences, i.e. broken bones. It is believed that 10% of the world's population suffers from osteoporosis and it affects mostly postmenopausal women (postmenopausal osteoporosis). Tibolone is a synthetic steroid that has estrogenic, androgenic, and progestagenic properties. It has been used primarily for the prevention of postmenopausal osteoporosis and treatment of climacteric symptoms. The research included a group of 40 postmenopausal women with osteopenia treated with tibolone. The control group included 40 postmenopausal women who were not taking any medication. Control group patients were older (54.5 ± 9.84) than the patients treated with tibolone (51.6 ± 6.22). Bone metabolic activity was evaluated using osteocalcin (N-MID osteocalcin) for bone formation and CTX I for bone resorption. Blood samples were taken before therapy was introduced and 3 months after its introduction. The average value of osteocalcin after three months of tibolone therapy was 26.32 ± 3.312 ng/mL compared to the average osteocalcin value prior to therapy of 29.6 ± 3.343 ng/mL. The average value of CTX I three months after tibolone therapy of 0.2870 ± 0.0783 ng/mL was lower compared to the average CTX I value before the therapy of 0.4539 ± 0.1144 ng/mL. Our results show the efficacy of tibolone in preventing bone loss, which was highly statistically significant. They also reveal its suppressive effects on bone formation and resorption, but these effects are statistically less significant. Tibolone significantly reduces the level of bone resorption in postmenopausal women with osteopenia. Its effects on bone formation are less expressed. The parameters of bone metabolic activity are a very useful diagnostic means in the evaluation of tibolone effects on bone metabolic activity and in the prognosis of bone mass loss.
Surgery of cholesteatoma: Surgical technique and cholesteatoma recurrences
Arsovi? Nenad,Radulovi? Radomir,Je?i? Sneana,Krejovi?-Trivi? S.
Acta Chirurgica Iugoslavica , 2004, DOI: 10.2298/aci0401103a
Abstract: Past experience with open and closed techniques of tympanoplasty in surgery of cholesteatoma has shown that recurring illness is one of the major causes of surgical failure. The literature has reported varying trend of surgical treatment of cholesteatoma. The objective of the study was to analyze the significance of surgical technique in relation to the incidence and most frequent localization of recurrent cholesteatoma. Our study analyzed 120 patients operated on for cholesteatoma. The patients were divided into two groups, group I (45) with recurring disease and group II (75) without any recurring condition, which were followed up three years. Statistical analysis was carried out by modified t-test. The largest number of patients was re-operated in the first two years from the initial surgery (50%), In the majority of patients (50%), recurrent cholesteatoma was most commonly localized (stage I) in attic (20%) and much rarely in mesotympanum (11,9%). Stage III recurrent cholesteatoma was verified in 35% of patients, most frequently diffuse form (13,4%). The involvement of attic by all three stages of disease accounted for over 60%. The analysis of the used techniques of surgical treatment in both groups revealed significant difference. Open techniques of tympanoplasty were used in 60% of patients with no recurrence. Closed techniques were used more frequently in patients with recurring disease, i.e. in over 90% of cases. Recurrent cholesteatoma develops, in the majority of cases, during the first two years after the surgical intervention. Attic is the most common localization of cholesteatoma. More frequent utilization of open technique of tympanoplasty for surgery of cholesteatoma significantly reduces the incidence of recurring condition. The indications for CWD technique are the initial spread of cholesteatoma, possibility of complete removal of cholesteatoma and postoperative follow-up of patients.
Fever of unknown origin in elderly patients
Turkulov Vesna,Brki? Sneana,Sevi? Sini?a,Mari? Daniela
Srpski Arhiv za Celokupno Lekarstvo , 2011, DOI: 10.2298/sarh1102064t
Abstract: Introduction. Causes of fever of unknown origin are different. It is considered that it can be caused with over 200 different clinical entities. Aetiological causes differ according to different categories of age. Febricity in the elderly is at most the result of autoimmune processes, malignancies, bacterial infections and vasculitis. Objective. The aim of this study was to determine the most common characteristics of fever, the most common laboratory, bacterial and viral tests and to analyze applied therapy in patients with unknown febrile state, and to affirm final diagnosis in elderly patients, as well as younger than 65 years old, and to define outcome of disease in both groups of patients. Methods. Research comprised 100 patients who had been treated at the Infectious Disease Clinic of the Clinical Centre of Vojvodina in Novi Sad, during a three-year period, and in whom fever of unknown origin had been diagnosed. Patients were divided into two homogenous groups of 50 people. The first one (S) consisted of patients older than 65 years, and the second, control group (K) was constituted of patients younger than the age of 65. All of them were chosen by random sample method. Results. Average results of standard laboratory parameters of infection were obtained, such as erythrocyte sedimentation rate (ESR), fibrinogen, CRP, and especially leukocyte, and those were significantly higher in the group of elderly patients. The cause had not been found in 10% of elderly patient group, and in the younger group, not even in the third of patients. Among known causative agents dominant were infections, usually of respiratory and urinary tract, in both tested groups. Even 28% of the elderly had sepsis, and 10% endocarditis. Malignant diseases were more frequent in group of the elderly patients, and immune i.e. systematic disorders were evenly noticed in both groups of patients. Conclusion. Despite advanced studies in medicine, and existence of modern diagnostic procedures, fever of unknown origin is still today differential diagnostic problem.
Chronic fatigue syndrome
Brki? Sneana,Tomi? Slavica,Ru?i? Maja,Mari? Daniela
Srpski Arhiv za Celokupno Lekarstvo , 2011, DOI: 10.2298/sarh1104256b
Abstract: Chronic fatigue syndrome (CFS) is defined by a profound, debilitating fatigue, lasting for at least 6 months and resulting in a substantial reduction of occupational, personal, social and educational status. CFS is a relatively poorly recognized clinical entity, although everyday experience shows that there are many patients with CFS symptoms. The incidence and prevalence of CFS remain unknown in most countries; however, the working population is most affected with predominantly female patients in generative period. Although, CFS was first mentioned four centuries ago, mysterious aethiopathogensis of CFS still intrigues scientists as hundreds of studies are still published every year on the subject. About 80 different aetiological CFS factors are mentioned, which can be classified into five basic groups: genetics, immunology, infectious diseases, endocrinology and neuropsychiatry-psychology. Even today the condition is passed established based on the diagnosis by exclusion of organic and psychiatric disorders, which demands u multidisciplinary approach. As the syndrome is often misdiagnosed and mistreated, self-medication is not uncommon in CFS patients’. In addition, such patients usually suffer for years tolerating severe fatigue. Thus, at the moment there are three priorities regarding CFS; understanding pathogenesis, development of diagnostic tests and creating efficient treatment program.
Seroprevalence of toxoplasmosis in Vojvodina
Brki? Sneana,Gajski Gorana,Bogavac Mirjana,Mari? Daniela
Srpski Arhiv za Celokupno Lekarstvo , 2010, DOI: 10.2298/sarh1006333b
Abstract: Introduction Toxoplasmosis is an acute infectious anthropozoonotic disease with mild asymptomatic clinical manifestations in immunocompetent persons and more severe in immunocompromised patients. Acute infection in pregnancy can result in severe congenital toxoplasmosis with severe sequels. Objective Aims of study were to detect Toxoplasma gondii seroprevalence in general population of Vojvodina, Serbia, differences between genders and determination of seroprevalence in women of reproductive age and pregnant women. Methods Our retrospective study was conducted from 2006 to 2008 including 625 immunocompetent patients, hospitalized or observed as outpatients at the Clinical Centre of Vojvodina, Novi Sad. We performed commercial ELISA kits SERION - ELISA classic test by VIRION for the presence of specific IgG and IgM antibodies. According to seroepidemiological aim of the study, our results were presented only in qualitative values. Results We observed 173 male and 452 female patients. Seroprevalence in general population of Vojvodina was 38.1%. In male population seroprevalence was 45.7%, and in female population it was 35.2%, the difference which was statistically significant (p<0.05). Seroprevalence increased with age and seroconversion was detected to occur in persons aged about 20 years. In all female patients, 353 (78.1%) were in reproductive age with seroprevalence of 30%. In 161 pregnant women seroprevalence was 31.7%. Conclusion In this study we screened actual seroepidemiological situation to Toxoplasma gondii in Vojvodina, thus giving a contribution to the continuous epidemiological screening done in this region and in the country. According to our results, almost 70% of women in reproductive age were sensitive to primary acute infection during further pregnancies, which is highly important for the prevention of congenital toxoplasmosis. Although not routinely conducted in many countries, routine serological testing to Toxoplasma gondii in pregnant women and their education about preventive measures against this infection could be an effective measure in the future.
Viral infections and oxidative stress
Brki? Sneana,Mari? Daniela,Tomi? Slavica,Dimitrijevi? Radmila
Vojnosanitetski Pregled , 2010, DOI: 10.2298/vsp1012015b
Abstract: nema
Thiobarbituric acid reactive substances as marker of oxidative stress in pregnancies with pre-eclampsia
Novakov-Miki? Aleksandra,Brki? Sneana,Mari? Daniela,Sekuli? Bojan
Medicinski Pregled , 2011, DOI: 10.2298/mpns1108377n
Abstract: Pre-eclampsia is characterized by increased lipid peroxidation and diminished antioxidant capacity. The aim of the study was to establish concentration of thiobarbituric acid reactive substances as a marker of lipid peroxidation in normal pregnancies and in pregnancies complicated with pre-eclampsia, and to estimate the possibility of using thiobarbituric acid reactive substances as a screening method for development of pre-eclampsia. The study was conducted at the Department of Obstetrics and Gynaecology, Clinical Centre of Vojvodina. The study included 57 singleton pregnancies, gestation >24 weeks, of which 29 were healthy pregnancies and 28 were with pre-eclampsia, defined as systolic arterial pressure of >90 mmHg, diastolic of >145 mmHg, and 24h proteinuria of >300mg. Thiobarbituric acid reactive substances concentrations evaluated by malondialdehyde equivalent standards (OxiSelect TBARS Assay Kit (malondialdehyde Quantitation), Cell Biolabs’ OxiSelect ) showed that oxidative stress was more evident in the group with pre-eclampsia, though not statistically significant (p= 0.107). There was no correlation of thiobarbituric acid reactive substance levels with gestation in either group. The differences between the level of thiobarbituric acid reactive substance concentrations in pre-eclampsia and healthy pregnancies indicate the possibility of using thiobarbituric acid reactive substances as a screening tool for the development of pre-eclampsia. Further studies with larger numbers of patients are needed in order to come to final conclusions.
Investment Activity in Small Open Economies  [PDF]
Vera Karadjova, Sneana Di?evska
Technology and Investment (TI) , 2014, DOI: 10.4236/ti.2014.52008
Abstract:


The paper gives a brief elaboration of the basic macroeconomic aspects of investments with emphasis on the specificities of small open economies in the process, theoretically elaborates the need for openness of small economies (especially the economies that need the acceleration of their development), then highlights the risks and opportunities arising from the investment activity both on the micro and macro level. Further distinguishes between investments in financial instruments and in real investment projects, emphasize the need for creation of an optimal diversified portfolio. Finally, the paper underlines the need for various forms of foreign direct investment for all economies, particularly the opportunities and threats arising in small open economies, to complete the wholeness with empirical data of the previously elaborated matters on the example of the Republic of Macedonia as a small open economy.


MARP Protein Family: A Possible Role in Molecular Mechanisms of Tumorigenesis
Sne ana Koji
Journal of Medical Biochemistry , 2010, DOI: 10.2478/v10011-010-0024-9
Abstract: The MARP (muscle ankyrin repeat protein) family comprises three structurally similar proteins: CARP/Ankrd1, Ankrd2/Arpp and DARP/Ankrd23. They share four conserved copies of 33-residue ankyrin repeats and contain a nuclear localization signal, allowing the sorting of MARPs to the nucleus. They are found both in the nucleus and in the cytoplasm of skeletal and cardiac muscle cells, suggesting that MARPs shuttle within the cell enabling them to play a role in signal transduction in striated muscle. Expression of MARPs is altered under different pathological conditions. In skeletal muscle, CARP/Ankrd1 and Ankrd2/Arpp are up-regulated in muscle in patients suffering from Duchene muscular dystrophy, congenital myopathy and spinal muscular atrophy. Mutations in Ankrd1 gene (coding CARP/Ankrd1) were identified in dilated and hypertrophic cardiomyopathies. Altered expression of MARPs is also observed in rhabdomyosarcoma, renal oncocytoma and ovarian cancer. In order to functionally characterize MARP family members CARP/Ankrd1 and Ankrd2/Arpp, we have found that both proteins interact with the tumor suppressor p53 both in vivo and in vitro and that p53 up-regulates their expression. Our results implicate the potential role of MARPs in molecular mechanisms relevant to tumor response and progression.
Biohemijski Aspekti, Laboratorijska Dijagnoza I Pra enje Povi ene Koncentracije Holesterola: Preporuke NCEP ATP III
Sne ana Jovi i
Journal of Medical Biochemistry , 2008, DOI: 10.2478/v10011-007-0044-2
Abstract: The Third Report of the expert panel on detection, evaluation and treatment of high blood cholesterol in adults (Adult Treatment Panel III, ATP III) constitutes the National Cholesterol Education Program's (NCEP's) updated clinical guidelines for cholesterol testing and clinical management of patients with high blood cholesterol. While ATP III maintains attention to intensive treatment of patients with coronary heart disease (CHD), its major new feature is a focus on primary prevention in persons with multiple risk factors. ATP III continues to identify elevated LDL cholesterol as the primary target of cholesterol lowering therapy. A basic principle of prevention is that the intensity of risk reduction therapy should be adjusted to a person's absolute risk. Risk assessment requires measurement of LDL cholesterol as part of lipoprotein analysis and identification of accompanying risk determinants (presence or absence of CHD, other clinical forms of atherosclerotic disease, diabetes, cigarette smoking, hypertension, low HDL cholesterol, family history of premature CHD, age). The category of highest risk consists of CHD and CHD risk equivalents - persons with absolute 10-year risk for major coronary events (death and myocardial infarction) >20%. The second category consists of persons with multiple (2+) risk factors in whom 10-year risk for CHD is ≥20%. Absolute risk is estimated from Framingham risk scores. The third category consists of persons having 0-1 risk factor. The LDL cholesterol goal for each category is defined and it can be achieved with dietary changes and/or drug therapy. European guidelines on cardiovascular disease (CVD) prevention in clinical practice recommend using the SCORE (Systematic COronary Risk Evaluation) Risk Charts in order to assess the risk for development of CVD, which is defined in terms of the absolute 10 year probability of developing a fatal cardiovascular event. The aim of this paper is to introduce parts of the NCEP's ATP III and European guidelines important for their implementation in laboratory practice.
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