Ana Tomic

Dr. Ana Tomic

orcid

Research Focus & Metrics

Academic Career Length

4Years (2023-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
13 December 2023 in Medicina
Verified
Journal Article
Open access
PDF file
MZMilena Zamurovic
Milena Zamurovic
ATAna Tomic
Ana Tomic
KDKatarina Djordjevic
Katarina Djordjevic
SSSara Simanic
Sara Simanic
JSJelena Petar Sopta
Jelena Petar Sopta
MRMarija Rovcanin
Marija Rovcanin
Isolated deep infiltrating endometriosis (DIE) of sacral nerve roots or major pelvic nerves, including the sciatic nerve, is considered to be extremely rare. Due to the overlap with sciatica symptoms, the diagnosis of sciatica DIE is difficult yet crucial, as it results in permanent neural damage if left untreated. We report a case of a 45-year-old woman who experienced a three-year-long and recently exacerbating pain in her right leg, accompanied by a tingling sensation and weakness in her right leg and foot, with difficulty walking. In between regular menstrual bleedings, when her aforementioned symptoms worsened, she had been experiencing mild 10-day extra-cyclical bleeding. Her neurologist’s, orthopedist’s, and gynecological examinations were unremarkable. Magnetic resonance imaging (MRI) showed an infiltrative lesion on the right sciatic nerve that was immunohistochemically confirmed to be endometriosis. The patient was treated with gonadotropin-releasing hormone analogues (GnRHa), which led to a significantly diminished size of the lesion on the control MRI, and endometriosis remission was obtained. For persistent mild, but cyclical, pain and muscle weakness, continuous progestagnes were administered, with advice for physical therapy provided for her neuro-muscle rehabilitation and a scheduled check-up in 6 months.

19 September 2024 in Diagnostics
Verified
Journal Article
Open access
PDF file
MMMarija Miletic
Marija Miletic
ZSZorica Stević
Zorica Stević
SVSvetlana Vujović
Svetlana Vujović
JRJelena Rakocevic
Jelena Rakocevic
ATAna Tomic
Ana Tomic
MŽMiloš Žarković
Miloš Žarković
Background: Spinal muscular atrophy type 3 (juvenile SMA, Kugelberg–Welander disease) is a genetic disease caused by changes in the survival motor neuron 1 (SMN) gene. However, there is increasing evidence of metabolic abnormalities in SMA patients, such as altered fatty acid metabolism, impaired glucose tolerance, and defects in the functioning of muscle mitochondria. Given that data in the literature are scarce regarding this subject, the purpose of this study was to estimate the prevalence of glucose and lipid metabolism disorders in adult patients with SMA type 3. Methods: We conducted a cross-sectional study of 23 adult patients with SMA type 3 who underwent a comprehensive evaluation, including a physical examination, biochemical analysis, and an oral glucose tolerance test during 2020–2023. Results: At least one lipid abnormality was observed in 60.8% of patients. All four lipid parameters were atypical in 4.3% of patients, three lipid parameters were abnormal in 21.7% of patients, and two lipid parameters were altered in 8.7% patients. A total of 91.3% of SMA3 patients met the HOMA-IR criteria for insulin resistance, with 30.43% having impaired glucose tolerance. None of the patients met the criteria for a diagnosis of overt DM2. Conclusions: The prevalence of dyslipidemia and altered glucose metabolism in our study sets apart the adult population with SMA3 from the general population, confirming a significant interplay between muscle, liver, and adipose tissue. Ensuring metabolic care for aging patients with SMA 3 is crucial, as they are vulnerable to metabolic derangements and cardiovascular risks.

15 April 2024 in Biomedicines
Verified
Journal Article
Open access
PDF file
ATAleksandar Trivic
Aleksandar Trivic
JMJovica Milovanovic
Jovica Milovanovic
DKDjurdjina Kablar
Djurdjina Kablar
ATAna Tomic
Ana Tomic
MFMiljan Folic
Miljan Folic
MJMarko Jankovic
Marko Jankovic
Although not regarded as an oncogenic pathogen, the human cytomegalovirus (HCMV) has been associated with a wide array of malignancies. Conversely, a number of studies report on possible anti-tumor properties of the virus, apparently mediated via HCMV-galvanized T-cell tumor killing; these were recently being investigated in clinical trials for the purposes of anti-cancer treatment by means of dendritic cell vaccines and HCMV-specific cytotoxic T cells. In the present study, we have analyzed the relation between a complement of head-and-neck tumors and HCMV infection across 73 countries worldwide using Spearman correlation, univariate and multivariate regression analysis. Intriguingly, HCMV was found to be pro-oncogenic in patients with nasopharyngeal carcinoma; contrarywise, the virus manifested an inverse (i.e., anti-tumor) association with the tumors of the lip/oral region and the salivary glands. Although this putative protective effect was noted initially for thyroid neoplasia and hypopharyngeal tumors as well, after multivariate regression analysis the connection did not hold. There was no association between laryngeal cancer and HCMV infection. It would appear that, depending on the tissue, HCMV may exert both protective and oncogenic effects. The globally observed protective feature of the virus could potentially be utilized in future therapeutic approaches for salivary tumors and neoplasia in the lip/oral region. As correlation does not necessarily imply causation, more in-depth molecular analyses from comprehensive clinical studies are warranted to substantiate our findings.

1 January 2024 in Depression and Anxiety
Verified
Journal Article
Open access
MRMarija Rovcanin
Marija Rovcanin
ATAna Tomic
Ana Tomic
SGSandra Sipetic Grujicic
Sandra Sipetic Grujicic
SJSvetlana Jankovic
Svetlana Jankovic
BIBojana Ivic
Bojana Ivic
IVIsidora Vujcic
Isidora Vujcic
Although the benefits of physical activity (PA) on mental well‐being are well established, the vulnerability of women during pregnancy and the postpartum period poses challenges in studying the effects of PA on postpartum depression (PPD). This study investigated the association between total and domain‐specific PA levels during pregnancy and postpartum depressive symptoms. The study included 105 healthy pregnant women whose PA status was evaluated by the Serbian version of the Physical Activity Questionnaire during Pregnancy (PPAQ‐SRB) and their postpartum mental health by the Edinburgh Postnatal Depression Scale. Multivariable logistic regression was used to explore the independent relationship between PPAQ‐SRB scores and the prediction of the PPD symptom occurrence. Our analysis revealed that the development of PPD symptomatology was associated with a lower “Total PPAQ‐SRB score” (odds ratio (OR) 0.81; 95% confidence interval (CI) [0.70–0.93]; p = 0.03) and “Total Activity score” (OR 0.82; 95% CI [0.71–0.93]; p = 0.03) as well as lower scores of light‐intensity PA (OR 0.81; 95% CI [0.69–0.96]; p = 0.013), moderate‐intensity PA (OR 0.82; 95% CI [0.71–0.94]; p = 0.005), “Household/care” (OR 0.85; 95% CI [0.73–0.98]; p = 0.028), and “Occupational” activities (OR 0.80; 95% CI [0.78–0.95]; p = 0.012). Lower levels of light‐to‐moderate‐intensity household and occupational activities appeared to increase the risk of PPD, indicating the importance of circumstances under which PA is performed. Hence, our findings indicate that PA during pregnancy can mitigate mood disorders in postpartum mothers. Moreover, reduced participation in light‐to‐moderate‐intensity household and occupational activities seemed to increase the risk of PPD.

27 June 2024 in Medicina
Verified
Journal Article
Open access
PDF file
SJSvetlana Jankovic
Svetlana Jankovic
MRMarija Rovcanin
Marija Rovcanin
ATAna Tomic
Ana Tomic
AJAleksandar Jurisic
Aleksandar Jurisic
ZMZagorka Milovanović
Zagorka Milovanović
MZMilena Zamurovic
Milena Zamurovic
Background and Objectives: Postmenopausal vaginal discomfort is often attributed to vulvovaginal atrophy (VVA). Women with VVA experience symptoms such as vaginal dryness, itching, burning, irritation, and dyspareunia. Materials and Methods: This pilot study was conducted to assess the effects of a micro-ablative fractional CO2 laser on the clinical symptoms of VVA, as well as concordant sexual function. The severity of VVA symptoms was evaluated by a visual analogue scale (VAS), while the condition of the vaginal mucosa was evaluated using the Vaginal Health Index Score (VHSI). Sexual function was evaluated using the Female Sexual Function Index (FSFI) Questionnaire. Results: Our cohort included 84 sexually active postmenopausal women with bothersome VVA, leading to sexual health complaints. The mean age of the participants in our study was 55.2 ± 5.4 years, with an average postmenopausal period of 6 ± 4.8 years. The age of our patients and the length of their postmenopausal period exhibited a significant negative correlation with VHSI scores, while a longer postmenopausal period was associated with increased severity of vaginal dryness and dyspareunia. Baseline VHSI values showed that 65% of patients had atrophic vaginitis with pronounced VVA symptoms (70.2% experienced vaginal itching, 73.8% reported vaginal burning, 95.3% had vaginal dryness, and 86.1% suffered from dyspareunia). Lower VHSI values significantly correlated with lower FSFI scores, while more severe VVA symptoms scores correlated with lower FSFI scores. VVA symptoms were significantly less severe after treatment. VHIS regained high non-atrophic values in 98.8% of patients post-treatment (p < 0.001). FSFI total and domain scores were significantly higher after treatment (p < 0.001). Conclusions: Our study revealed that fractional CO2 laser is a useful treatment option to alleviate VVA symptoms and improve vaginal health and sexual functioning in postmenopausal women.

27 March 2024 in Pharmaceuticals
Verified
Journal Article
Open access
PDF file
TVTamara Vasiljevic
Tamara Vasiljevic
MJMarko Jankovic
Marko Jankovic
ATAna Tomic
Ana Tomic
IBIda Bakrac
Ida Bakrac
SRStefan Radenovic
Stefan Radenovic
MBMilena Todorovic Balint
Milena Todorovic Balint
Introduction: Cytomegalovirus (CMV) infection is a major clinical issue after allogeneic hematopoietic stem cell transplantation (HSCT). The CMV envelope glycoproteins are key in viral pathogenesis; the glycoprotein B (gB) encoded by the UL55 gene might be an important determinant of viral virulence and disease severity marker in patients treated with allogeneic HSCT. Our aim was to investigate the molecular diversity of CMV gB and inquire into the associations between UL55 gene variations and clinical manifestations in adult patients treated with allogeneic HSCT. Results: The most prevalent genotypes were gB1 and gB4 (11/27, 40.7%). Patients with genotype gB1 infection had earlier platelet engraftment (p < 0.033) and less frequent minimal/measurable residual disease post HSCT than those without this genotype. Patients with gB4 glycoprotein infection had a significantly lower CD4+/CD8+ ratio at D90 (p < 0.026). Interestingly, patients with gB5 glycoprotein infection had shorter overall survival from base condition diagnosis (p < 0.042), as well as shorter overall survival after HSCT (p < 0.036). Acute GvHD was noted more frequently in those with mixed-genotype infection (p = 0.047). Material and Methods: The study included fifty-nine adult patients treated with allogeneic HSCT. Peripheral venous blood was sampled typically per week, with detection of CMV performed by quantitative real-time PCR. Multiplex nested PCR was used to determine specific gB genotypes, which were then statistically compared vis-à-vis specific clinical variables. Conclusions: Our study points to variations in the viral UL55 locus imparting both beneficial (earlier platelet engraftment, less frequent MRD post HSCT) and adverse effects (shorter overall survival, more frequent acute GvHD, less frequent 100% chimerism at day 90) to the transplanted host. Comprehensive molecular investigations are necessary to validate this apparent duality, as the potential benefits of CMV could perhaps be utilized for the benefit of the patient in the future.