Sorin Dema

Dr. Sorin Dema

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

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26 February 2024 in Cancers
Verified
Journal Article
Open access
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ACAlexandru Chioreanu
Alexandru Chioreanu
Nicolae Constantin BalicaNicolae Constantin Balica
Nicolae Constantin Balica
CMCristian Ion Mot
Cristian Ion Mot
RBRadmila Bugari
Radmila Bugari
RMRaluca Morar
Raluca Morar
DHDelia Ioana Horhat
Delia Ioana Horhat
Background: Oropharyngeal cancer is a global health concern due to its multifaceted nature. Recent molecular studies have linked p16 overexpression, associated with the human papillomavirus, to oropharyngeal cancer and its prognostic implications. Materials and Methods: This retrospective study in Western Romania examined 60 patients, categorizing them based on p16 biomarker status: 28 were p16 positive, and 32 were p16 negative. Statistical tests, including Fisher’s exact and chi2, were used for analysis. Results: Patients with p16-positive oropharyngeal cancer exhibited a better prognosis (3-year survival, p = 0.0477; midtreatment, p = 0.0349) and reported lower alcohol (p = 0.0046) and tobacco (p < 0.0001) use. Conclusions: The study highlights the importance of p16 testing in oropharyngeal carcinoma diagnosis. It suggests modifying treatment approaches based on p16 status and underscores the differing prognoses associated with p16-positive and p16-negative cases.

23 January 2025 in Life
Verified
Journal Article
Open access
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RBRobert Alexandru Barna
Robert Alexandru Barna
ADAlis Dema
Alis Dema
AJAura Jurescu
Aura Jurescu
AVAdrian Vaduva
Adrian Vaduva
DLDorela-Codruta Lazureanu
Dorela-Codruta Lazureanu
SDSorin Dema
Sorin Dema
Background and objectives: We aimed to assess the significance of sex and age compared to other clinical-pathological parameters in colorectal cancer (CRC). Materials and methods: Our study included a retrospective approach to CRC patients who underwent surgery at the ‘Pius Brinzeu’ County Clinical Emergency Hospital in Timisoara (PBECCHT), Romania. The analyzed parameters were: patient age and sex, tumor location, histological type, differentiation grade (G), extent of tumor (pT), lymph-node status (pN), distant metastasis status (pM), and lymphovascular invasion (LVI). The population was divided into three groups based on age, with those under 49 years old, 50 to 69 years old, and elderly (>70). Results: The study’s inclusion criteria were met by 1885 patients, with a male-to-female ratio of 1.39:1. There were significant differences between the sexes in the anatomical location of tumors (p < 0.0001). Younger patients were more likely to have deeply invasive tumors (p = 0.0096), LVI (p = 0.0332), lymph-node metastases (p = 0.0158), and metastatic disease (p = 0.0017). Conclusions: Over the ten-year period reviewed, the frequency of CRC cases has progressively increased, with males being diagnosed more often. In terms of patient age, the young population exhibits clinical features of aggressive evolution. Patient sex did not influence the analyzed parameters, except for tumor location, where right colon tumors are slightly more common in females.

21 July 2025 in Nutrients
Verified
Journal Article
Open access
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MBMarius-Cătălin Belean
Marius-Cătălin Belean
TMTeodor Andrei Maghiar
Teodor Andrei Maghiar
ACAnca-Maria Căpraru
Anca-Maria Căpraru
ANAndreea-Adriana Neamțu
Andreea-Adriana Neamțu
DIDAN IILIESCU
DAN IILIESCU
CNCarmen Neamtu
Carmen Neamtu
Background/Objectives: Colorectal cancer is a leading cause of cancer-related death worldwide, with rising incidence in younger adults. Unhealthy diets high in red and processed meat and low in fiber are key modifiable risk factors, highlighting the need for preventive nutritional strategies targeting CRC through dietary interventions. Methods: A one-day sample diet for colorectal cancer prevention, consisting of fiber-rich meals excluding red meat and incorporating whole grains, legumes, vegetables, fruits, nuts, and lean protein alternatives (such as fish and poultry), was developed. Its acceptability was assessed in a cross-sectional study using an online questionnaire among healthy Romanian adults aged 18–50, with a total of 395 included participants. Results: Of the 395 respondents meeting the inclusion criteria (aged 18–50, no cancer or chronic gastrointestinal disorders), 63.5% were females, predominantly urban (90.1%), and highly educated. Mean age was 32.4 years; mean BMI was 25.07 kg/m2. The proposed colorectal cancer-preventive diet was rated as “quite attractive” and “very attractive” by 74.9% of participants. All meals received high ratings, with dinner and the first snack being most favored. Most respondents (77.2%) found the diet satisfying and the satiety level and energy adequate, and 90.4% were willing to adopt it at least a few times per week. Financial accessibility was affirmed by 77.2% of the respondents. However, 61.8% reported difficulty eliminating red meat consumption. Female participants rated the diet significantly more attractive than males did (p = 0.041). Willingness to adopt the diet strongly correlated with higher acceptability (p < 0.0001), while BMI and education level showed no significant effect. Conclusions: The proposed colorectal cancer-preventive diet was well accepted by Romanian adults aged 18–50, with higher receptivity among women and those with higher education; willingness to adopt the diet at least a few days per week was high, especially among those psychologically ready for dietary change, while key barriers included red meat reduction and perceived cost, underscoring the need for gender-sensitive, culturally adapted interventions and further research on long-term adherence and clinical impact.

10 July 2024 in Indian Journal of Pathology and Microbiology
Verified
Journal Article
Open access
VDVlad S. F. Dema
Vlad S. F. Dema
BNBianca R. Nataras
Bianca R. Nataras
SDSorin Dema
Sorin Dema
MBMadalina Bercea
Madalina Bercea
RBRobert A. Barna
Robert A. Barna
ACAlin Adrian Cumpanas
Alin Adrian Cumpanas
Introduction: Prostate cancer is the second most common cancer, following lung cancer, and the fifth leading cause of cancer death in men worldwide. The onset of the disease, characterized by symptoms or changes caused by distant metastases, is rare and poses a challenge for clinicians and pathologists. We aimed to present a series of prostate carcinoma (PC) with unusual, histologically confirmed distant metastases (pM1) at the time of diagnosis, which raised suspicions of other types or origins of the primary tumor. Materials and Methods: Patients diagnosed with PC and distant metastases within a five-year timeframe (2017–2022) were extracted from the hospital database. The following data were collected: patient’s age, imaging data, serum PSA level, and histopathological evaluation results. Patients with unusual distant metastases were selected and analyzed. Results: We identified 10 patients in whom the diagnosis of PC was established following histopathological examination of tissue taken from distant metastatic sites (pM1). In three patients, the location of distant metastases was unusual: retroperitoneal, cranial/dural/epicranial and supradiaphragmatic lymph nodes which posed diagnostic challenges. Establishing the prostate origin of the tumor relied on immunohistochemical (IHC) investigation guided by clinical-imaging information. Conclusions: A metastasis of PC may rarely present as a cranial/dural tumor, retroperitoneal, or supradiaphragmatic lymphadenopathies in a man over the age of 50, but it should be taken into consideration. In the absence of correlated clinical, imaging, and histopathological/IHC data, diagnosing distant metastasis from PC is difficult, especially considering its potentially confusing IHC profile.

29 November 2024 in Diagnostics
Verified
Journal Article
Open access
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MPMarius Preda
Marius Preda
Nilima Rajpal KundnaniNilima Rajpal Kundnani
Nilima Rajpal Kundnani
Roxana BuzasRoxana Buzas
Roxana Buzas
SDSorin Dema
Sorin Dema
ACAdrian Carabineanu
Adrian Carabineanu
ABAlexandru Iulian Ciprian Blidisel
Alexandru Iulian Ciprian Blidisel
Background: Accessory breast cancer cases are rarely reported in the literature. Of the reported cases, the predominantly available ones are those localized in the axillary region. Methods: We present here a very rare case of metastatic accessory breast cancer. It was located in the infra-mammary region (IMR). IMR accessory breast cancer is a rare form of breast cancer. Although ectopic nipples are occasionally found in the IMR, because of the lack of ductal tissue malignant changes, they are rare. Results: In our case, the primary tumor was localized in the congenital accessory breast tissue (ABT). It was recognized as invasive lobular accessory breast cancer cT3N1M0 with a second NST carcinoma, cT2N0M0, Stage IIA, in the ipsilateral breast. A multi-modal approach was applied. Adjuvant chemotherapy was carried out with epirubicin, cyclophosphamide, and paclitaxel, with post-chemotherapy ultrasound followed by right radical mastectomy. Adjuvant radiotherapy was given to our patient in the form of 25 fractions of 50 GY for 25 days, followed by hormonal treatment with Letrozole, 2.5 mg/day, to be continued for 5 years. Conclusions: our case demonstrates that since it is rare to find accessory breast cancer in the infra-mammary region, early identification and management with a multi-modal approach can lead to a successful patient outcome.

25 September 2025 in Medicina
Verified
Journal Article
Open access
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IHIoana Hurmuz
Ioana Hurmuz
RBRobert Alexandru Barna
Robert Alexandru Barna
BNBianca Roxana Nataras
Bianca Roxana Nataras
ITIuliana-Anamaria Trăilă
Iuliana-Anamaria Trăilă
DADenisa Anderco
Denisa Anderco
ADAlis Dema
Alis Dema
Background and Objectives: Multiple primary malignancies involving endometrial carcinoma (EC) present complex diagnostic and management challenges. This study aimed to identify clinical, pathological, and demographic patterns among patients with EC and a second primary tumor and assess the role of comorbidities in tumor behavior. Materials and Methods: We retrospectively analyzed 35 women diagnosed with EC and a second malignancy between 2017 and 2024. We evaluated clinical variables, tumor characteristics, and comorbidities. Statistical analysis included chi-square tests, Mann–Whitney U tests, Kruskal–Wallis tests, Spearman correlations, and logistic regression. Multiple testing correction was applied using the Benjamini–Hochberg method. Results: Endometrioid EC was the most prevalent subtype (80%), most frequently associated with breast (28.5%) and colorectal cancers (11.4%). Obesity (45.7%), hypertension (62.9%), and diabetes (22.9%) were common. While univariate analysis suggested associations between comorbidities and tumor features (e.g., obesity and tumor type, ρ = 0.30, p = 0.08), no correlation remained significant after adjustment. Logistic regression identified age (OR = 0.88, CI: 0.79–0.98, p = 0.022) and obesity (OR = 0.11, CI: 0.01–0.83, p = 0.033) as independent predictors of non-endometrioid histology. Conclusions: These findings suggest that age and obesity may influence histological differentiation in EC with multiple primaries. This study suggest that age and obesity may play a role in the histological differentiation of EC in patients with multiple primary tumors. The small cohort size (n = 35) limits the statistical power and generalizability of the results; therefore, they should be regarded as exploratory and hypothesis-generating, warranting validation in larger prospective studies.