Publications by authors named "Hastir D"

Ovarian cancers are gynecological cancers with a poor prognosis. Most ovarian cancers are high-grade serous carcinomas. It is now accepted that they are very often tubal in origin.

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Article Synopsis
  • The study investigates the histological response of peritoneal metastases (PM) from recurrent tubo-ovarian cancer (TOVC) to systemic chemotherapy using the Peritoneal Regression Grading System (PRGS) and compares it to the Chemotherapy Response Score (CRS).
  • The analysis included 38 patients and revealed various levels of treatment response, with 26% achieving complete response and an overall mean PRGS of 2.3.
  • While PRGS showed a positive correlation with the Peritoneal Cancer Index and an inverse correlation with CRS, it did not correlate with overall survival, indicating a need for further research on its significance as a treatment response marker.
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Serous carcinoma of the uterine cervix (SCUC) is now believed to be a morphological variant of an HPV-associated endocervical adenocarcinoma or a metastasis from a serous carcinoma of the upper tract. In terms of mutational status as detected by next-generation sequencing (NGS), this controversial entity has not been characterized yet. We describe the case of a patient with a carcinoma categorized as stage IVB SCUC, initially treated with carboplatin, paclitaxel, and bevacizumab, followed by maintenance with bevacizumab.

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High stromal tumor-infiltrating lymphocytes (sTILs) in triple-negative breast cancer (TNBC) are associated with pathological complete response (pCR) after neoadjuvant chemotherapy (NAC). Histopathological assessment of sTILs in TNBC biopsies is characterized by substantial interobserver variability, but it is unknown whether this affects its association with pCR. Here, we aimed to investigate the degree of interobserver variability in an international study, and its impact on the relationship between sTILs and pCR.

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Uterine perivascular epithelioid cell tumors (PEComas) are rare neoplasms. PI3K/AKT/mTOR pathway upregulation is critical for their pathogenesis and is often associated with TSC1/TSC2 inactivation. Although first line mTOR inhibitors are an effective treatment, metastatic PEComas eventually progress.

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Diabetic muscle infarction is a rare and often unrecognized complication of diabetes. It typically occurs in patients with poorly controlled and multi-complicated diabetes. Typical clinical presentation is an indurate muscle pain, mainly localized in the lower limb with an acute onset.

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We describe the case of a 64-year-old woman in whom an aneurysm located on the posterior mitral leaflet was detected. Blood cultures grew methicillin-sensitive Staphylococcus epidermidis, and histologic examination of the operative specimen showed polymorphonuclear neutrophilic infiltration of the valve wall associated with fibrin and necrosis, consistent with a diagnosis of endocarditis. The posterior mitral location of the aneurysm and the absence of vegetation are exceptionally rare in this setting.

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Glioblastoma (GBM) is the most common malignant primary brain tumors in adults and exhibit striking aggressiveness. Although GBM constitute a single histological entity, they exhibit considerable variability in biological behavior, resulting in significant differences in terms of prognosis and response to treatment. In an attempt to better understand the biology of GBM, many groups have performed high-scale profiling studies based on gene or protein expression.

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Article Synopsis
  • Enterococcus hirae S185 exhibits unique penicillin resistance due to two low-affinity penicillin-binding proteins (PBPs), PBP5 and PBP3r, which are related and share similar mechanisms of resistance.
  • The PBP3r gene has been cloned and analyzed, revealing a high similarity (78.5% identity) to PBP5, while displaying lower identities with other related PBPs, indicating evolutionary divergence.
  • Both PBPs feature a modular design typical of high-M(r) PBPs but possess an extra 110-amino-acid stretch; additionally, PBP3r is linked to a plasmid-borne erm gene that provides erythromycin resistance.
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