Avadanei E.-R.,Grigore T. Popa University of Medicine and Pharmacy |
Wierzbicki P.M.,Medical University of Gdansk |
Giusca S.-E.,Sf Spiridon University Hospital |
Grigoras A.,Grigore T. Popa University of Medicine and Pharmacy |
And 2 more authors.
Folia Histochemica et Cytobiologica | Year: 2014
Macrophages are important components of the tumor-associated infiltrate and are qualified as one of the major players of the cancer-related inflammation. It was shown that tumor cells can either stimulate or mediate apoptosis of tumor-associated macrophages (TAMs). To date, there is no general agreement regarding the influence of TAMs and their numbers on the progression of hepatocellular carcinoma (HCC) and hepaticmetastases (HM). To analyze the presence of TAMs and compare their numbers in intratumoral (IT) and peritumoral (PT) areas with the clinical outcome of HCC and HM patients. Biopsies from 35 HCC and 39 HM cases were analyzed. Clinical and follow-up data was enrolled for each case; the colorectal cancer was the origin of 26 HM patients. TAMs were identified by immunohistochemistry using anti-CD68 monoclonal antibody. The quantitative assessment was performed by determining the mean number of CD68-positive cells in IT and PT areas in HCC and HM. Two threshold methods were applied: threshold 1 (T1) was calculated with the use of (-log) Cox method; threshold 2 (T2) was considered as 1/3 TAMs number of group's mean. For statistical analyses Mann-Whitney U-test, Spearman's correlation, Cox proportional hazard and Kaplan-Meier tests were applied. To date, 36.12% HCC and 27.78% HM patients were alive, median survival was 5 and 17 months for HCC and HM, respectively (P = 0.05). We found significant two-fold decrease of TAMs numbers between IT vs. PT territories in both HCC and HM. A positive correlation between numbers of PT and IT TAMs was observed in HM group (rs = 0.48, P < 0.05) but not in HCC. The number of TAMs was not associated with any studied clinical factor. Univariate Cox regression analysis showed that tumor stage ≤ II (P = 0.01) and increased number of PT TAMs (P = 0.06, only when T2 value was applied) were associated with favorable prognosis in HCC (HR = 2.614 and 2.457, respectively). Univariate and multivariate Cox analyses in HM revealed favorable prognosis for histological grade ≤ G2 and one lobe tumors (P = 0.021 and 0.045; HR = 0.395 and 0.438, respectively). Survival analysis retained the impact of increased TAMs numbers in peritumoral areas (P = 0.03), tumor stages in HCC (P = 0.007), lobes' number (P = 0.007) and histological grade (P = 0.005) on HM patients' outcome. In HCC and HM the low number of TAMs in intratumoral areas was related to the tumor cell microenvironment. The increased peritumoral TAMs number in primary liver tumors was associated with better prognosis. © Polish Society for Histochemistry and Cytochemistry.
Antoniu S.A.,Grigore T. Popa University of Medicine and Pharmacy |
Petrescu E.,Grigore T. Popa University of Medicine and Pharmacy |
Stanescu R.,Grigore T. Popa University of Medicine and Pharmacy |
Anisie E.,Grigore T. Popa University of Medicine and Pharmacy |
Boiculese L.,Sf Spiridon University Hospital
Therapeutic Advances in Respiratory Disease | Year: 2016
Introduction: Fatigue, which is also present in the healthy population, is a common but understudied symptom in chronic obstructive pulmonary disease (COPD). We hypothesized that clinically significant fatigue is also frequent in COPD and can be associated with an increased disease burden. Methods: An exploratory analysis derived from an ongoing cross-sectional study was carried out to evaluate levels of fatigue and impact on health-related quality of life/health status in patients with COPD (COPD group; n = 20) and healthy subjects (control group; n = 5). Health-related quality of life was measured using the Short Form Health Survey 36 (SF-36), health status with the Clinical COPD Questionnaire (CCQ), and airways obstruction with postbronchodilator forced expiratory volume in 1 s (FEV1 %predicted). Fatigue was measured with the vitality score of the SF-36, its clinical significance being defined by values of 50 or less. Fatigue was also measured using the Functional Assessment of Chronic Illness Therapy scale for fatigue (FACIT-F). Results: Vitality scores were significantly worse in the COPD group (45.60 versus 76.25; p = 0.004). FACIT-F scores were significantly lower in the COPD group versus the control group (74.5 versus 95.0; p = 0.03). Clinically significant fatigue was detected in 60% of the COPD group, and was associated with a worse FEV1 %predicted (47.71 versus 65.82%; p = 0.016), worse symptoms burden (CCQ symptoms score 3.75 versus 2.43; p = 0.019), and worse overall health status (CCQ total score 3.30 versus 2.11; p = 0.011). Its link with systemic inflammation remains to be clarified further. Conclusions: Clinically significant fatigue is common among patients with COPD and is associated with an increased disease burden. It should therefore be integrated as a measure of disease prognosis and control in patients with COPD. © 2016 The Author(s).
Mihalache D.,Grigore T. Popa University of Medicine and Pharmacy |
Giusca S.E.,Sf Spiridon University Hospital |
Balan R.,Grigore T. Popa University of Medicine and Pharmacy |
Amalinei C.,Grigore T. Popa University of Medicine and Pharmacy |
And 2 more authors.
Romanian Journal of Morphology and Embryology | Year: 2014
This study focuses on the analysis of geometric descriptors that can be applied in breast cytology, and their correlation with the qualitative features, with the aim to underline the differences between the benign and malignant cell profile. The morphometric investigation was performed on smears obtained by fine needle aspiration, 10 cases (group 1) diagnosed as benign and 10 cases (group 2) as malignant. For group 2, the malignancy was histopathologically confirmed on the surgical resection specimen. The sequence of automated operation, previously reported by us, permitted the extraction of the following geometrical descriptors: cytoplasmic area, nuclear area, nucleocytoplasmic ratio, equivalent diameter and form factor. We analyzed the differences between the benign and malignant morphometric features, and the correlation between the malignant morphometric features and cytological, respectively histological grading. Statistically significant difference in cytoplasmic areas, nuclear areas, value of nucleo-cytoplasmic ratio and equivalent diameter was noted between group I and II. For the form factor, we did not register statistically significant differences. For group 2, the correlation between the morphometric features and cytological grading revealed that the nuclear area is the most valuable descriptor, due to the significant differences between the three successive grades of cytological severity, followed by the cytoplasmic area and equivalent diameter, their numerical values presenting significant differences between cytological grade 1 and 3, and 2 and 3, respectively. The statistical analysis between the morphometric features and histological grading showed that nuclear area and equivalent diameter are the most viable indicators, due to the significant differences present between the three successive grades of pathologic severity, followed by cytoplasmic area (significant differences only for grade 2 versus 3) and for nucleo-cytoplasmic ratio (significant differences only for grade 1 versus 2). The form factor does not provide information that could be correlated with the cytological or histological grading. The defined morphometric features enable the characterization of benign and malignant cells and provide objective criteria that could support a differentiation of benign from the malignant pathology in the cytological diagnosis.
Aprotosoaie A.C.,Grigore T. Popa University of Medicine and Pharmacy |
Hancianu M.,Grigore T. Popa University of Medicine and Pharmacy |
Costache I.-I.,Sf Spiridon University Hospital |
Miron A.,Grigore T. Popa University of Medicine and Pharmacy
Flavour and Fragrance Journal | Year: 2014
This paper reports on the occurrence, biosynthesis, metabolism, biological and toxicological profile, and assessment of the authenticity of linalool. The main biological properties of linalool - sedative, anxiolytic, analgesic, anticonvulsant, anti-inflammatory, local anaesthetic - are discussed in terms of the molecule's chirality influence, the mechanisms of activity and type of study (in vitro, in vivo, clinical studies). Also, there is a discussion of the recent data on the skin sensitizing potential of linalool based on numerous scientific studies which have been performed in the last few years. Comments of the authenticity assessment of linalool are made considering the limitations imposed by the chemical structure, vegetal matrix or processing methods, but also from the perspective of the powerful and sophisticated analytical techniques available today (GC-C-IRMS, enantio-MDGC coupled to GC-C-IRMS, SNIF-NMR). © 2014 John Wiley & Sons, Ltd.
Popescu C.I.,Grigore T. Popa University of Medicine and Pharmacy |
Giusca S.E.,Sf Spiridon University Hospital |
Liliac L.,Grigore T. Popa University of Medicine and Pharmacy |
Avadanei R.,Grigore T. Popa University of Medicine and Pharmacy |
And 6 more authors.
Romanian Journal of Morphology and Embryology | Year: 2013
E-cadherins are epithelial morphological stabilizers, performing complex functions as receptors, providers of cellular and tissular structural integrity, and functional interactive mediators. Structural and functional unbalance initiated due to E-cadherin expression loss results in direct effects on carcinogenesis specific biological processes, as cellular invasion and proliferation. We investigated the E-cadherin expression aiming (i) to identify the differences in the molecular subtypes of breast cancer, (ii) to analyze the correlations between E-cadherin and specific clinicopathological and molecular characteristics. The study included 42 cases that were investigated immunohistochemically using a panel of antibodies (ER, PR, Her2/neu, CK5/6, EGFR), which permitted a diagnostic in compliance with the molecular classification, followed by the E-cadherin evaluation. The semi-quantitative assessment of E-cadherin was performed using a scoring system based on the positive cells percentage and the staining intensity. Our results showed, according to the molecular subtypes, a strong positive E-cadherin expression in 26 cases (luminal A subtype-nine cases, luminal B subtype-five cases, HER2 subtype-three cases, basal-like subtype-seven cases, unclassified subtype-two cases), and a weak positive one in 16 cases (luminal A subtype-six cases, luminal B subtype-eight cases, HER2 subtype-one case, basal-like subtype-one case). The statistical analysis revealed significantly statistical differences between E-cadherin and tumoral grade (p=0.0208), histological subtype (p=0.0081), triple negative molecular subtypes and non-triple negative, respectively (p=0.0361). These findings support the potential value of E-cadherin for a supplementary differentiation of molecular subtypes, based on the biological significance of its capacity of expression.