ALEXANDRA LIMBAU

Dr. ALEXANDRA LIMBAU


Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

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3 March 2021 in Healthcare
Verified
Journal Article
Open access
PDF file
INIrina Nita
Irina Nita
CNCornelia Nițipir
Cornelia Nițipir
ȘTȘtefania Andreea Toma
Ștefania Andreea Toma
ALALEXANDRA LIMBAU
ALEXANDRA LIMBAU
EPEdvina Elena Elena Pirvu
Edvina Elena Elena Pirvu
LMLoredana Sabina Cornelia Manolescu
Loredana Sabina Cornelia Manolescu
Background: We investigated the correlation between the androgen receptor (AR) and immunohistochemistry (IHC) as a prognostic factor in breast cancer (BC). AR is expressed in 60–80% of BC. Methods: We evaluated the prognostic values of AR expression among 143 patients with BC for 36 months. The protocol was amended to measure androgen, estrogen and progesterone receptor expression by IHC and the percentage of hormone positive nuclei was quantified. We determined and quantified the Her2/neu status using IHC and in situ hybridization. The methodology consisted in using a Kaplan–Meier analysis and restricted mean survival time up to 36 months. The principal endpoints of the study were overall survival (OS) and progression free survival (PFS). Results: 57% of patients (n = 82) from our group had AR+ (≥ 1%). Patients with AR+ had better OS, 35.50 vs. 33.40 months, with p = 0.027. Moreover, PFS was prolonged for patients AR+, 32.60 vs. 30.50 months, with p = 0.38. Triple negative breast cancer (TNBC) patients had lower OS and no difference was observed for PFS. Conclusions: Both OS and PFS were favorably influenced by the presence of AR. TNBC had worse outcomes compared with patients with hormonal or/and Her 2/neu positive disease in terms of OS.

9 November 2020 in Medicina
Verified
Journal Article
Open access
PDF file
INIrina Nita
Irina Nita
CNCornelia Nițipir
Cornelia Nițipir
ȘTȘtefania Andreea Toma
Ștefania Andreea Toma
ALALEXANDRA LIMBAU
ALEXANDRA LIMBAU
EPEdvina Elena Elena Pirvu
Edvina Elena Elena Pirvu
LMLoredana Sabina Cornelia Manolescu
Loredana Sabina Cornelia Manolescu
Background and objectives: Our aim is to explore the relationship between the levels of protein encoded by Ki67 and the histopathological aspects regarding the overall survival and progression-free survival in a single university center. A secondary objective was to examine other factors that can influence these endpoints. New approaches to the prognostic assessment of breast cancer have come from molecular profiling studies. Ki67 is a nuclear protein associated with cell proliferation. Together with the histological type and tumor grade, it is used to appreciate the aggressiveness of the breast tumors. Materials and Methods: We conducted a retrospective single-institution study, at Elias University Emergency Hospital, Bucharest, Romania, in which we enrolled women with stage I to III breast cancer. The protocol was amended to include the immunohistochemistry determination of Ki67 and the histological aspects. The methodology consisted in using a Kaplan–Meier analysis for the entire sample and restricted mean survival time up to 36 months. Results: Both lower Ki67 and low tumor grade are associated with better prognosis in terms of overall survival (OS) and progression-free survival (PFS) for our patients’ cohort. In our group, the histological type did not impact the time to progression or survival. Conclusions: Both overall survival and progression-free survival may be influenced by the higher value of Ki67 and less differentiated tumors. Further studies are needed in order to establish if the histologic type may impact breast cancer prognostic, probably together with other histologic and molecular markers.

1 June 2021 in Cureus
Verified
Journal Article
Open access
Mihaela Corina RaduMihaela Corina Radu
Mihaela Corina Radu
CBCalin Boeru
Calin Boeru
MPMelania-Elena Pop-Tudose
Melania-Elena Pop-Tudose
ANAndrei Necsulescu
Andrei Necsulescu
ADAnca Irina Dumitrescu
Anca Irina Dumitrescu
CZCorneliu Zaharia
Corneliu Zaharia
Human papillomavirus (HPV) is one of the most encountered viral etiologies of genital infections that are transmitted through the sexual route in sexually active females. In the genital area, condylomata acuminate warts and the Buschke-Loewenstein tumor (giant condyloma acuminatum) are described. These lesions are associated with benign HPV6 and HPV 11 types. Condylomaia acuminate may appear as exophytic growth similar to a cauliflower and is usually asymptomatic. The Buschke-Loewenstein tumor appears as ulcerated cauliflower-like lesions, often associated with fistulas and abscesses. They present exophytic and endophytic growth, local invasion, and high recurrence rates. This type of lesion may be associated with malignant HPV types. Here we present the case of a 34-year-old year pregnant woman who presented herself at the emergency room in labor with no previous medical evaluation during the pregnancy. The local examination revealed normal pubic hair, vulvar hyperpigmentation, and tonic and continent anal sphincter. At the vulvar level, a bulky cauliflower-like formation appeared. All routine investigations were normal. Immunological tests revealed the presence of antibodies anti-HPV immunoglobulin M (IgM) and immunoglobulin G (IgG). Treponema pallidum hemagglutination (TPHA) and HIV tests were negative. Samples collected from the genital lesions tested positive for both 6 and 11 DNA/HPV. The patient was diagnosed with condylomata acuminate and C-section was indicated as the methodology of birth so HPV infection of the newborn was avoided. We believe that HPV infection during pregnancy must be documented and treated when detected in order to avoid transmitting it to the newborn baby in a manner similar to TORCH testing. In pregnant women and women that want to conceive, in order to avoid transmission of infectious diseases from the mother to the newborn baby, TORCH testing is recommended. TORCH represents an acronym that includes: toxoplasmosis, other infectious diseases, rubella, cylomegalcwirus infection, and herpes simplex infection.