Dragos Puia

Dr. Dragos Puia

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Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

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

Representative Publications

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DPDragos Puia
Dragos Puia
Marius IvanutaMarius Ivanuta
Marius Ivanuta
CPCatalin Pricop
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Bladder cancer pathogenesis is closely linked to epigenetic alterations, particularly DNA methylation and demethylation processes. Environmental carcinogens and persistent inflammatory stimuli—such as recurrent urinary tract infections—can induce aberrant DNA methylation, altering gene expression profiles and contributing to malignant transformation. This review synthesizes current evidence on the role of DNA methyltransferases (DNMT1, DNMT3a, DNMT3b) and the hypermethylation of key tumour suppressor genes, including A2BP1, NPTX2, SOX11, PENK, NKX6-2, DBC1, MYO3A, and CA10, in bladder cancer. It also evaluates the therapeutic application of DNA-demethylating agents such as 5-azacytidine and highlights the impact of chronic inflammation on epigenetic regulation. Promoter hypermethylation of tumour suppressor genes leads to transcriptional silencing and unchecked cell proliferation. Urine-based DNA methylation assays provide a sensitive and specific method for non-invasive early detection, with single-target approaches offering high diagnostic precision. Animal models are increasingly employed to validate these findings, allowing the study of methylation dynamics and gene–environment interactions in vivo. DNA methylation represents a key epigenetic mechanism in bladder cancer, with significant diagnostic, prognostic, and therapeutic implications. Integration of human and experimental data supports the use of methylation-based biomarkers for early detection and targeted treatment, paving the way for personalized approaches in bladder cancer management.

Verified
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DPDragos Puia
Dragos Puia
Marius IvanutaMarius Ivanuta
Marius Ivanuta
CPCatalin Pricop
Catalin Pricop
Kidney injury molecule-1 (KIM-1) is a transmembrane protein that is significantly upregulated in renal cells following injury. It has considerable potential as a biomarker for diagnosing and monitoring renal cell carcinoma (RCC). This review examines KIM-1 expression across multiple biological sources—including tissue, blood, and urine—and highlights its strong association with RCC risk. Clinical studies have shown that KIM-1 levels decline within weeks after nephrectomy, underscoring its utility in assessing therapeutic response. Additionally, urinary KIM-1 levels correlate with histopathological outcomes following cisplatin treatment, supporting its role as a non-invasive marker for treatment effectiveness. Despite these promising findings, several challenges remain. These include variability in assay performance and the modulatory effects of the tumour microenvironment on KIM-1 expression. Overcoming these technical limitations is crucial for integrating KIM-1 into clinical workflows. Furthermore, its potential role in guiding combination therapies—such as tyrosine kinase inhibitors (TKIs), immune checkpoint inhibitors (ICIs), and mTOR inhibitors—could enhance therapeutic precision while minimizing toxicity. Continued research is essential to validate these applications and facilitate the routine clinical use of KIM-1 in RCC management.

24 March 2023 in Medicina
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DPDragos Puia
Dragos Puia
ŞGŞtefan Gheorghincă
Ştefan Gheorghincă
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Background: Although rare, Fournier’s gangrene is a major urological emergency. We aimed to learn more about the pathogenesis of Fournier’s gangrene and assess the antibiotic resistance patterns in individuals with this disease. Methods: We retrospectively evaluated the patients diagnosed with and treated for Fournier’s gangrene in a Neamt county hospital and “CI Parhon” Clinical Hospital in Iasi, Romania between 1 January 2016 and 1 June 2022. Results: We included a total of 40 patients, all males; of these, 12.5% died. In our study, in the patients that died, the adverse prognostic factors were a higher body temperature (38.12 ± 0.68 vs. 38.94 ± 0.85 °C; p = 0.009), an elevated WBC (17.4 ± 5.46 vs. 25.23 ± 7.48; p = 0.003), obesity (14.28% vs. 60%; p = 0.04), and a significantly higher FGSI (4.17 ± 2.80 vs. 9.4 ± 3.2; p = 0.0002) as well as MAR index (0.37 ± 0.29 vs. 0.59 ± 0.24; p = 0.036). These patients were more likely to have liver affections than those in the group who survived, but the difference was not significant. The most frequently identified microorganism in the tissue secretions culture was E. coli (40%), followed by Klebsiella pneumoniae (30%) and Enterococcus (10%). The highest MAR index was encountered in Acinetobacter (1), in a patient that did not survive, followed by Pseudomonas (0.85) and Proteus (0.75). Conclusions: Fournier’s gangrene remains a fatal condition, a highly resistant causative microorganism that is not always correlated with a poor prognosis.

8 December 2024 in Cureus
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Journal Article
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MIMarius Ivanuta
Marius Ivanuta
DPDragos Puia
Dragos Puia
OPOctavia Petrila
Octavia Petrila
AIAna-Maria Ivanuta
Ana-Maria Ivanuta
CPCatalin Pricop
Catalin Pricop
Urolithiasis is a multifactorial condition where stone composition is critical in guiding treatment and prevention strategies. Advanced diagnostic techniques, such as infrared spectroscopy, provide precise stone analysis, enabling clinicians to tailor interventions based on specific stone types and associated metabolic abnormalities. Calcium oxalate monohydrate stones often require invasive approaches like percutaneous nephrolithotomy, while uric acid responds well to dissolution therapy. Cystine stones, linked to genetic cystinuria, necessitate lifelong management, including aggressive hydration, urinary alkalinization, and pharmacological treatments such as tiopronin. Stone composition significantly influences treatment decisions and recurrence prevention in urolithiasis. Integrating detailed compositional analysis into clinical practice enables personalized interventions, improving outcomes and reducing recurrence rates. Future research should focus on refining diagnostic techniques and exploring novel therapies to address the metabolic and environmental contributors to stone formation. Adopting a multidisciplinary, patient-centered approach is essential for advancing the management of urolithiasis.

18 May 2022 in Cureus
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DPDragos Puia
Dragos Puia
CPCatalin Pricop
Catalin Pricop
Demographic data regarding male infertility suggest an increase in prevalence. This is an entity with multifactorial etiology, hormonal causes are often encountered. Although treatment with clomiphene was advocated to stimulate gametogenesis, it is still used off-label. We aimed to evaluate data from literature related to the effect of clomiphene as a single therapy, on the improvement of sperm count in infertile patients. Out of the 4,017 results of the search, only eight articles have been selected. The selected studies have been published between 1983 and 2020, and have included a total of 616 patients. From data reported, the treatment with clomiphene lead to a significant improvement of sperm concentration compared with placebo or with the level before starting the therapy (p<0.00001). Out of the 616 patients, in 369 (59.90%) cases improved sperm concentration was reported. In our meta-analysis, the selected studies had a high heterogeneity (I2 = 97%). Nevertheless, clomiphene is not an ideal treatment, paroxysmal effects have been reported. Our findings encourage the use of clomiphene on male infertility, although the potential side effects should be clearly explained to patients.

14 October 2024 in Journal of Clinical Medicine
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Marius IvanutaMarius Ivanuta
Marius Ivanuta
MNMihaela Nikolic
Mihaela Nikolic
DPDragos Puia
Dragos Puia
Background: This study highlighted the differences between the biochemical compositions of urinary stones from patients with type 1 diabetes versus those with type 2 diabetes. Materials and Methods: This study included patients diagnosed with kidney stones and diabetes who were referred to the Urological Clinic of the Dr. C. I. Parhon Hospital in Iasi from April 2017 to April 2024. We analyzed the spectroscopic stone composition from 128 lithiasis patients treated in our Clinic. In the current study, the distribution of the biochemical composition of stones varied significantly between diabetic patients with type 2 diabetes, who formed primarily mixed uric acid stones, and diabetic patients with type 1 diabetes, who mainly developed pure uric acid stones (p < 0.001). Patients with uric acid stones had significantly higher mean creatinine values than the other stone types (p < 0.001). Urinary pH levels were abnormal for all biochemical subtypes of stones, indicating acidic urine. However, patients with uric acid stones had lower pH values than the group average. From the Kaplan–Mayer analysis, patients with pure uric acid stones had a shorter time to stone recurrence compared to patients with other biochemical types identified. Conclusions: These findings, which highlight the prevalence of pure uric acid stones in patients with type 1 diabetes and the impact of this on the strategy for dissolving pure stones, represent a significant advancement in understanding urinary lithiasis in diabetic patients.