Tieranu Eugen

Dr. Tieranu Eugen


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

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

Representative Publications

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21 March 2025 in Journal of Clinical Medicine
Verified
Journal Article
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Ramona CioboataRamona Cioboata
Ramona Cioboata
Mara Amalia BALTEANUMara Amalia BALTEANU
Mara Amalia BALTEANU
OAOsman Andrei
Osman Andrei
SVSilviu Vlasceanu
Silviu Vlasceanu
OZOvidiu Mircea Zlatian
Ovidiu Mircea Zlatian
TETieranu Eugen
Tieranu Eugen
Tuberculosis (TB) continues to be a major public health challenge in low- and middle-income countries (LMICs), where high burdens of coinfections exacerbate the disease’s impact. In 2023, an estimated 8.2 million people were newly diagnosed with tuberculosis worldwide, reflecting an increase from 7.5 million in 2022 and 7.1 million in 2019. In LMICs, limited access to healthcare, inadequate nutrition, and poor living conditions contribute to higher coinfection rates among TB patients, leading to delayed diagnosis and treatment, which in turn exacerbates disease severity and facilitates transmission. This narrative review synthesizes the epidemiology, clinical implications, diagnostic challenges, and management strategies related to TB coinfections with viral pathogens including HIV, SARS-CoV-2, and influenza, bacteria such as Streptococcus pneumoniae, Staphylococcus aureus, Klebsiella pneumoniae, and Pseudomonas aeruginosa, fungi such as Aspergillus and Candida species, and parasites. This review highlights that overlapping symptoms, immune system compromise, and socioeconomic barriers in LMICs lead to delayed diagnoses and suboptimal treatment outcomes, while also addressing the challenges of managing drug interactions particularly in HIV–TB coinfections and underscoring the need for integrated diagnostic approaches, improved treatment regimens, and strengthened healthcare systems, thereby consolidating current evidence to inform future research priorities and policy interventions aimed at reducing the overall burden of TB and its coinfections in resource-limited settings.

8 November 2024 in Journal of Clinical Medicine
Verified
Journal Article
Open access
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Ramona CioboataRamona Cioboata
Ramona Cioboata
DNDragos Nicolosu
Dragos Nicolosu
ABANDREI-THEODOR BĂLĂŞOIU
ANDREI-THEODOR BĂLĂŞOIU
Mara Amalia BALTEANUMara Amalia BALTEANU
Mara Amalia BALTEANU
OZOvidiu Mircea Zlatian
Ovidiu Mircea Zlatian
Alice Elena GheneaAlice Elena Ghenea
Alice Elena Ghenea
Background/Objectives: This study explored the relationship between serum vitamin C levels, antioxidant defense mechanisms, and the severity of pulmonary tuberculosis (TB) among Romanian patients. Methods: This study enrolled 53 patients with bacteriologically confirmed pulmonary tuberculosis at Victor Babes University Hospital in Craiova between January 2023 and August 2024. Participants were stratified into two groups based on their serum vitamin C levels: 26 patients with normal levels and 27 patients with low levels. Clinical, demographic, and biological parameters, including inflammatory markers, such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR), were assessed at baseline and after 60 days of TB treatment. Serum vitamin C levels were measured using ELISA. The persistence of Mycobacterium tuberculosis (MTB) was evaluated using sputum smear microscopy and culture at baseline and after 2 months of treatment. Results: The results showed that patients with low vitamin C levels had significantly higher baseline ESR (92.63 ± 27.69 mm/h) and CRP (43.89 ± 12.00 mg/L) levels compared to those with normal levels (ESR: 65.11 ± 13.27 mm/h, CRP: 31.19 ± 9.76 mg/L). After 60 days, 66.67% of patients with low vitamin C levels remained culture-positive compared to 26.92% in the normal vitamin C group (p = 0.004). Multivariate analysis indicated that vitamin C deficiency was significantly associated with a higher TB culture load. Conclusions: These findings suggest that vitamin C deficiency may contribute to the persistence of MTB and highlight the potential role of vitamin C supplementation as an adjunct to standard TB treatment, particularly in the context of global efforts to eradicate the disease by 2035.

23 September 2024 in Biomedicines
Verified
Journal Article
Open access
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IBIonut Cezar Buciu
Ionut Cezar Buciu
TETieranu Eugen
Tieranu Eugen
APAndreea-Stefania Pircalabu
Andreea-Stefania Pircalabu
OZOvidiu Mircea Zlatian
Ovidiu Mircea Zlatian
IDIonut Donoiu
Ionut Donoiu
CMCristian Militaru Cristian Militaru
Cristian Militaru Cristian Militaru
Introduction: Cardiovascular diseases are the leading cause of mortality worldwide, with a significant impact on socioeconomic aspects. Various biomarkers have been studied in relation to the diagnosis, progression, and prognosis of atherosclerotic disease, with lipoprotein (a) [Lp (a)] standing out as an important predictor of cardiovascular risk. This observational study aimed to clarify the association between Lp (a) levels and the severity of significant multivessel coronary lesions in acute myocardial infarction (AMI) patients. Materials and Methods: Conducted at the Clinical Emergency County Hospital of Craiova, Romania, the study involved 256 young patients divided into two groups based on Lp (a) levels: Group A (Lp (a) < 30 mg/dL) and Group B (Lp (a) ≥ 30 mg/dL). Patients included young adults up to 55 years for males and 60 years for females, excluding those with familial hypercholesterolemia. Results: The study revealed a significant association between elevated Lp (a) levels and the presence of multivessel coronary lesions. Patients with Lp (a) concentrations ≥ 30 mg/dL exhibited a higher prevalence of multivessel disease compared to those with lower levels. Discussion: The findings suggest that elevated Lp (a) levels are a crucial biomarker for the risk of coronary artery disease, particularly in young patients with AMI. The study emphasizes the need for aggressive lipid management strategies and personalized treatment approaches, considering the significant role of Lp (a) in atherosclerosis and AMI. Conclusions: Lipoprotein A levels above 30 mg/dL are associated with a higher prevalence of multivessel coronary lesions. Multivariate analysis revealed that higher Lp (a) levels and lower HDL levels are linked to an increased risk of multivessel coronary lesions.

14 January 2026 in Journal of Clinical Medicine
Verified
Journal Article
Open access
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Ramona CioboataRamona Cioboata
Ramona Cioboata
MOMihai Olteanu
Mihai Olteanu
MMMitroi Denisa Maria
Mitroi Denisa Maria
SRSimona Maria Roșu
Simona Maria Roșu
MTMaria-Loredana Tieranu
Maria-Loredana Tieranu
Mara Amalia BALTEANUMara Amalia BALTEANU
Mara Amalia BALTEANU
Chronic obstructive pulmonary disease (COPD) and tuberculosis (TB) increasingly co-occur in low- and middle-income countries and aging populations. Prior pulmonary TB is a robust, smoking-independent determinant of COPD and is linked to persistent systemic inflammation, endothelial dysfunction, dyslipidemia, and hypercoagulability axes that also amplify cardiovascular disease (CVD) risk. We conducted a targeted narrative non-systematic review (2005–2025) of PubMed/MEDLINE, Embase, Scopus, and Web of Science, selecting studies for clinical relevance across epidemiology, clinical phenotypes, pathobiology, biomarkers, risk scores, sleep-disordered breathing, and management. No quantitative synthesis or formal risk-of-bias assessment was performed. Accordingly, findings should be interpreted as a qualitative synthesis rather than pooled estimates. Prior TB is associated with a distinctive COPD phenotype characterized by mixed obstructive–restrictive defects, reduced diffusing capacity (DLCO), radiographic sequelae, and higher exacerbation/hospitalization burden. Mechanistic insights: Convergent mechanisms chronic immune activation, endothelial injury, prothrombotic remodeling, molecular mimicry, and epigenetic reprogramming provide biologic plausibility for excess CVD, venous thromboembolism, and pulmonary hypertension. Multimarker panels spanning inflammation, endothelial injury, myocardial strain/fibrosis, and coagulation offer incremental prognostic value beyond clinical variables. While QRISK4 now includes COPD, it does not explicitly model prior TB or COPD-TB outcomes, but data specific to post-TB cohorts remain limited. Clinical implications: In resource-constrained settings, pragmatic screening, prioritized PAP access, guideline-concordant pharmacotherapy, and task-shifting are feasible adaptations. A history of TB is a clinically meaningful modifier of cardiopulmonary risk in COPD. An integrated, multimodal assessment history, targeted biomarkers, spirometry/lung volumes, DLCO, 6 min walk test, and focused imaging should guide individualized care while TB-aware prediction models and implementation studies are developed and validated in high-burden settings.

Verified
Journal Article
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ATAnca-Maria Tuca
Anca-Maria Tuca
APAlexandra Nicoleta Preda
Alexandra Nicoleta Preda
GTGeorgică Târtea
Georgică Târtea
DHDiana Ruxandra Hădăreanu
Diana Ruxandra Hădăreanu
TETieranu Eugen
Tieranu Eugen
SMSmaranda Mitran
Smaranda Mitran
Diabetic peripheral neuropathy (DPN) is one of the most common chronic complications of diabetes mellitus, driven by oxidative stress, inflammation, and microvascular dysfunction. Dapagliflozin, a selective inhibitor of sodium–glucose cotransporter type 2 (SGLT2), is used in the treatment of type 2 diabetes and has pleiotropic antioxidant and anti-inflammatory effects. The aim of this study was to evaluate the neuroprotective effects of dapagliflozin in an experimental model of streptozotocin (STZ)-induced diabetic peripheral neuropathy in mice. C57BL/6 mice were divided into three groups: control (DM–), STZ-induced diabetes (DM+), and diabetes + dapagliflozin (DM + DAPA, 10 mg/kg/day, oral administration for 12 weeks). Clinical (glycemia, weight, diuresis), electrophysiological, and histopathological parameters were evaluated, and behavioral tests (Open Field, Von Frey, Hot Tail) were performed. Dapagliflozin significantly reduced hyperglycemia, limited weight loss and polyuria, and improved locomotor behavior and nociceptive sensitivity. Electrodiagnostically, the treatment increased the amplitude and reduced the duration of motor potentials, indicating improved nerve conduction. Histological analyses showed decreased hydroxynonenal (HNE) immunoreactivity, suggesting attenuation of oxidative stress, reduced perineural fibrogenesis, and maintained intraepidermal nerve fiber density. Dapagliflozin exerts significant neuroprotective effects in experimental diabetic peripheral neuropathy by reducing oxidative stress, inflammation, and fibrosis and maintaining the structural and functional integrity of peripheral nerves.

16 November 2024 in Medicina
Verified
Journal Article
Open access
PDF file
IBIonut Cezar Buciu
Ionut Cezar Buciu
TETieranu Eugen
Tieranu Eugen
APAndreea-Stefania Pircalabu
Andreea-Stefania Pircalabu
OIOctavian Istratoaie
Octavian Istratoaie
OZOvidiu Mircea Zlatian
Ovidiu Mircea Zlatian
CMCristian Militaru Cristian Militaru
Cristian Militaru Cristian Militaru
Background and Objectives: This observational study investigates the relationship between Lipoprotein (a) (Lp(a)) levels and the risk of acute myocardial infarction (AMI). This study aims to highlight the association of elevated Lipoprotein (a) levels with an increased atherogenic profile and the potential risk of AMI. Materials and Methods: We conducted a case–control study involving 106 individuals, including 64 AMI patients (both STEMI and NSTEMI) and 42 healthy controls. Comprehensive clinical and biochemical assessments, including Lp(a) measurements, were conducted. Results: Patients with Lp(a) levels ≥ 30 mg/dL had a threefold increased risk of AMI compared to those with lower levels, independent of traditional risk factors such as cholesterol, smoking, and body weight. Elevated Lp(a) was observed in 50% of AMI patients compared to 28.57% in controls (p = 0.028). Notably, a multivariate analysis identified high Lp(a) levels, low HDL-C levels, and obesity as significant independent predictors of AMI, indicating these factors may contribute to AMI risk more prominently than other conventional risk factors in patients with elevated Lp(a). Moreover, the association between Lp(a) and AMI risk was consistent across various patient subgroups, with low HDL-C further compounding the risk. Conclusions: Lp(a) is a significant independent risk factor for acute myocardial infarction; therefore, screening for Lp(a) levels can help identify high-risk individuals beyond traditional markers. Therapeutic approaches targeting Lp(a) may reduce AMI incidence. Future research should explore how Lp(a) promotes atherosclerosis and assess Lp(a)-lowering therapies to improve patient outcomes.