Publications by authors named "Alessandra Petrucco"

Background: Gestational diabetes mellitus (GDM) affects roughly 14% of pregnancies, its prevalence is increasing, and it is associated with a significant risk of complications for both mother and offspring. A high proportion of women with GDM can be detected early in pregnancy. In Italy, early GDM screening occurs in a selective way, as it is performed only in the presence of important risk factors.

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(1) Background: Oral semaglutide represents the first oral GLP-1 RA approved for the treatment of type 2 diabetes mellitus (T2DM). This real-world retrospective study aimed at evaluating its effectiveness and tolerability in the treatment of patients with T2DM when patients switched from a glucose-lowering agent to it and when it was added to the usual therapy. (2) Methods: Adult patients with T2DM taking oral semaglutide and followed in the ASUGI Diabetes Center were identified with the use of electronic medical records between October 2022 and May 2023.

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The evidence that EMILIN1 (Elastic Microfibril Interface Located proteIN) deficiency in Emilin1(-/-) mice caused dermal and epidermal hyperproliferation and an abnormal lymphatic phenotype prompted us to hypothesize the involvement of this extracellular matrix component in tumor development and in lymphatic metastasis. Using the 12-dimethylbenz(α)anthracene/12-O-tetradecanoylphorbol-13-acetate (DMBA/TPA) two-stage model of skin carcinogenesis, we found that Emilin1(-/-) mice presented an accelerated formation, a higher incidence, and the development of a larger number of tumors compared with their wild-type littermates. EMILIN1-negative tumors showed more Ki67-positive proliferating cells and higher levels of pErk1/2.

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Article Synopsis
  • EMILIN1 is crucial for cell adhesion and migration in skin, interacting with integrins α4β1 and α9β1.
  • Loss of EMILIN1 in knockout mice leads to excessive skin cell growth and faster wound healing.
  • The study reveals that EMILIN1's absence triggers cellular pathways that disrupt normal signaling, emphasizing its role in regulating skin health.
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Multi-drug resistance (MDR) limits the effectiveness of chemotherapy. P-glycoprotein encoded by the MDR1 gene, is known to be implicated in MDR phenotype, but other factors could be determinant in MDR. The aim of this study was to investigate new molecular factors potentially associated with the MDR phenotype using a proteomic approach.

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Lymphatic-vasculature function critically depends on extracellular matrix (ECM) and on its connections with lymphatic endothelial cells (LECs). However, the composition and the architecture of ECM have not been fully taken into consideration in studying the biology and the pathology of the lymphatic system. EMILIN1, an elastic microfibril-associated protein, is highly expressed by LECs in vitro and colocalizes with lymphatic vessels in several mouse tissues.

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