105 results match your criteria: "Prof. Franciszek Łukaszczyk Memorial Hospital[Affiliation]"

Imaging of prostate micro-architecture using three-dimensional wide-field optical coherence tomography.

Biomed Opt Express

December 2024

Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toruń, 5 Grudziądzka St., 87-100 Toruń, Poland.

Prostate cancer is a global health issue that requires new diagnostic methods to provide accurate and precise visualization of prostate tissue on the micro-scale. Such methods have the potential to improve nerve-sparing surgery and to provide image guidance during prostate biopsy. In this feasibility study, we assess the potential of three-dimensional wide-field optical coherence tomography (OCT), covering a volumetric imaging field-of-view up to 46 × 46 × 1 mm, to visualize micro-architecture in 18 freshly excised human prostate specimens.

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Article Synopsis
  • The rising incidence of colorectal cancer has emphasized the need for enhanced surgical training, particularly in Poland, where changes to the training program have increased the number of required intestinal procedures for residents.
  • A multicenter study (LILEO study) involving 199 patients aimed to evaluate ileostomy reversal safety, comparing outcomes between surgeries performed by specialist surgeons and those done by surgical residents.
  • Results showed that while the resident group had a shorter hospital stay and a lower overall complication rate, these differences weren't statistically significant; however, minor complications were more prevalent in the specialist group, indicating that resident-performed ileostomy reversals are safe and effective.
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  • Claudins, specifically claudin-1 and claudin-4, are tight junction proteins involved in the progression of thyroid cancers and are potential therapeutic targets.
  • The study analyzed 162 thyroid samples from patients with various pathologies, finding distinct expression patterns: goiters had negative claudin-1 and mostly positive claudin-4, while papillary thyroid cancers and adenomas showed positive claudin-1 and claudin-4.
  • High expression levels of claudin-1 were linked to poorer overall survival rates in patients, highlighting its role as a prognostic factor and indicating a need for further trials to explore claudin targeting in clinical settings.
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Neuroendocrine neoplasms (NENs) present a diagnostic challenge due to their heterogeneous nature and non-specific clinical manifestations. This study aimed to explore novel biomarkers for NENs. Serum chromogranin A (CgA) levels and a panel of 48 inflammatory cytokines were analyzed in a cohort of 84 NEN patients and 40 healthy controls using enzyme-linked immunosorbent assay (ELISA) and multiplex ELISA.

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Loop ileostomy is commonly performed by colorectal and general surgeons to protect newly created large bowel anastomoses. The optimal timing for ileostomy closure remains debatable. Defining the timing associated with the best postoperative outcomes can significantly improve the clinical results for patients undergoing ileostomy closure.

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Introduction: Sacituzumab govitecan (SG) is approved for patients with previously treated metastatic or locally advanced triple-negative breast cancer (TNBC), as per the ASCENT trial results. Real-world studies (RWSs) cover more diverse patients than clinical trials, offering crucial data for healthcare policies. This study aimed to investigate the safety and efficacy of SG in real-world Polish patients with previously treated metastatic TNBC.

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PCMT1 as a prognostic marker in breast cancer.

Clin Transl Oncol

September 2024

Department of Tumor Pathology and Pathomorphology, Oncology Centre in Bydgoszcz ul. Romanowska, Prof. Franciszek Łukaszczyk Memorial Hospital, 85-796, Bydgoszcz, Poland.

Introduction: Triple-negative breast cancer (TNBC) is one of the most aggressive cancers in women, therefore it is necessary to determine novel prognostic markers to estimate survival and advancement the treatment of the disease. Recently, PCMT1, a protein mediating TNBC immune infiltration, has gained attention as a potential therapeutic target. The aim of the study was to demonstrate the relationship between PCMT1 protein overexpression as a prognostic indicator for patients with TNBC cancer and patient survival.

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: Recent publications underscore the need for updated recommendations addressing less radical surgery for <2 cm tumors, induction chemotherapy, or immunotherapy for locally advanced stages of cervical cancer, as well as for the systemic therapy for recurrent or metastatic cervical cancer. : To summarize the current evidence for the diagnosis, treatment, and follow-up of cervical cancer and provide evidence-based clinical practice recommendations. : Developed according to AGREE II standards, the guidelines classify scientific evidence based on the Agency for Health Technology Assessment and Tariff System criteria.

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Background: SARS-CoV-2 can damage human placentas, leading to pregnancy complications, such as preeclampsia and premature birth. This study investigates the histopathological changes found in COVID-19-affected placentas.

Materials And Methods: This study included 23 placentas from patients with active COVID-19 during delivery and 22 samples from patients without COVID-19 infection in their medical history.

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Introduction: Creation of colostomy is still a commonly performed procedure in emergency settings, when intestinal anastomosis cannot be performed safely. Reversing a stoma has been linked with high rates of morbidity and also mortality.

Aim: The primary goal of the study was to identify the risk of postoperative complications in patients undergoing colostomy liquidation.

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Preliminary results of Polish national multicenter LILEO study on ileostomy reversal.

Pol Przegl Chir

February 2024

Chair of Surgery, Faculty of Medicine and Health Sciences, Andrzej Frycz Modrzewski Krakow University, Poland, Department of Oncological Surgery, 5th Military Clinical Hospital in Krakow, Poland, National Institute of Oncology, Maria Skłodowska-Curie Memorial, Warsaw, Poland.

<b><br>Introduction:</b> Ileostomy reversal is a common surgical procedure and currently standardized perioperative and surgical protocols are lacking.</br> <b><br>Aim:</b> LILEO study was designed to perform a multicenter analysis on numerous perioperative parameters and estimation of the incidence of postoperative complications.</br> <b><br>Materials and methods:</b> The study is an open multicenter prospective cohort study.

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Glioblastoma (GBM) is the most common malignant brain tumor, which, despite significant progress made in the last years in the field of neuro-oncology, remains an incurable disease. GBM has a poor prognosis with a median survival of 12-15 months, and its aggressive clinical course is related to rapid growth, extensive infiltration of adjacent tissues, resistance to chemotherapy, radiotherapy and immunotherapy, and frequent relapse. Currently, several molecular biomarkers are used in clinical practice to predict patient prognosis and response to treatment.

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Background: Colorectal cancer (CRC) prognosis is determined by the disease stage with low survival rates for advanced stages. Current CRC screening programs are mainly using colonoscopy, limited by its invasiveness and high cost. Therefore, non-invasive, cost-effective, and accurate alternatives are urgently needed.

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Despite advances in early detection and treatment strategies, breast cancer recurrence and mortality remain a significant health issue. Recent insights suggest the prognostic potential of microscopically healthy mammary gland, in the vicinity of the breast lesion. Nonetheless, a comprehensive understanding of the gene expression profiles in these tissues and their relationship to patient outcomes remain missing.

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Targeting apoptosis in clear cell renal cell carcinoma.

Biomed Pharmacother

June 2024

Department of Tumor Pathology and Pathomorphology, Oncology Centre Prof. Franciszek Łukaszczyk Memorial Hospital, Bydgoszcz 85-796, Poland; Department of Obstetrics, Gynaecology and Oncology, Chair of Pathomorphology and Clinical Placentology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz 85-094, Poland.

Clear cell renal cell carcinoma (ccRCC) is the most prevalent subtype of renal cancer, accounting for approximately 80% of all renal cell cancers. Due to its exceptional inter- and intratumor heterogeneity, it is highly resistant to conventional systemic therapies. Targeting the evasion of cell death, one of cancer's hallmarks, is currently emerging as an alternative strategy for ccRCC.

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Introduction: Due to its lack of conventional surface receptors, triple-negative breast cancer (TNBC) is inherently resistant to most targeted therapies. MAL2 overexpression prompts endocytosis, conferring resistance to novel therapeutics. This study explores the role of MAL2 and PD-L1 in TNBC patients' prognosis.

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Exploring the Link between Inflammatory Biomarkers and Head and Neck Cancer: Understanding the Impact of Smoking as a Cancer-Predisposing Factor.

Biomedicines

March 2024

Department of Medical Biology and Biochemistry, Faculty of Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 24 Karłowicza St., 85-092 Bydgoszcz, Poland.

Head and neck cancer (HNC) is associated with significant morbidity globally, with smoking recognized as a key risk factor. This study investigates the interplay between smoking and inflammatory biomarkers in HNC development. The study involved 50 HNC patients, divided into smoking and non-smoking groups, and a control group of 30 healthy individuals.

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Male sex is a risk factor for colorectal cancer (CRC) with higher illness burden and earlier onset. Thus, we hypothesized that loss of chromosome Y (LOY) in the tumor micro-environment (TME) might be involved in oncogenesis. Previous studies show that LOY in circulating leukocytes of aging men was associated with shorter survival and non-hematological cancer, as well as higher LOY in CD4 + T-lymphocytes in men with prostate cancer vs.

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: The objective of this retrospective study was to investigate the association between acetabulum fractures; the mechanism of injury; and variables such as BMI, duration of hospital stay, blood loss, and surgery time. By exploring these factors, we aim to enhance our understanding of them and their impact on the healing process and the subsequent management of pelvic fractures. : This study included 67 of 136 consecutive patients who were admitted for pelvic ring fracture surgery between 2017 and 2022.

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Mechanisms of SARS-CoV-2 Placental Transmission.

Arch Immunol Ther Exp (Warsz)

January 2024

Department of Obstetrics, Gynaecology and Oncology, Chair of Pathomorphology and Clinical Placentology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland.

The widespread occurrence of SARS-CoV-2 infections and the diverse range of symptoms have placed significant strain on healthcare systems worldwide. Pregnancy has also been affected by COVID-19, with an increased risk of complications and unfavorable outcomes for expectant mothers. Multiple studies indicate that SARS-CoV-2 can infiltrate the placenta, breach its protective barrier, and infect the fetus.

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Flow cytometry in the detection of circulating tumor cells in neoplastic effusions.

Clin Chim Acta

January 2024

Department of Obstetrics, Gynaecology and Oncology, Chair of Pathomorphology and Clinical Placentology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Poland; Department of Tumor Pathology and Pathomorphology, Oncology Centre - Prof. Franciszek Łukaszczyk Memorial Hospital in Bydgoszcz, Poland; Chair of Pathology, Dr. Jan Biziel Memorial University Hospital No. 2 in Bydgoszcz, Poland.

Purpose: Despite its limitations, the cytology of body fluids is widely used in diagnosing neoplastic cells. Flow cytometry detects and identifies individual cells, enabling the detection of circulating tumor cells and facilitating diagnosis. This study compared the diagnostic utility of flow cytometry and cytology for detecting cancer cells in peritoneal and pleural fluids.

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Objective: the aim of this study was to document the occurrence of THA after acetabulum surgery and examine the factors that predict its occurrence.

Methods: This study included 77 consecutive patients who were admitted for acetabulum fracture surgery between 2012 and 2019. The inclusion criteria were acetabular fractures and indications for operative management.

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Refining PD-1/PD-L1 assessment for biomarker-guided immunotherapy: A review.

Biomol Biomed

January 2024

Department of Tumor Pathology and Pathomorphology, Oncology Centre-Prof. Franciszek Łukaszczyk Memorial Hospital, Bydgoszcz, Poland; Department of Obstetrics, Gynaecology and Oncology, Chair of Pathomorphology and Clinical Placentology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland.

Anti-programmed cell death ligand 1 (anti-PD-L1)  immunotherapy is an increasingly crucial in cancer treatment. To date, the Federal Drug Administration (FDA) has approved four PD-L1 immunohistochemistry (IHC) staining protocols, commercially available in the form of "kits", facilitating testing for PD-L1 expression. These kits comprise four PD-L1 antibodies on two separate IHC platforms, each utilizing distinct, non-interchangeable scoring systems.

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Targeting circulating tumor cells to prevent metastases.

Hum Cell

January 2024

Department of Obstetrics, Gynaecology and Oncology, Chair of Pathomorphology and Clinical Placentology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Torun, Poland.

Circulating tumor cells (CTCs) are cancer cells that detach from the primary tumor, enter the bloodstream or body fluids, and spread to other body parts, leading to metastasis. Their presence and characteristics have been linked to cancer progression and poor prognosis in different types of cancer. Analyzing CTCs can offer valuable information about tumors' genetic and molecular diversity, which is crucial for personalized therapy.

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Diagnostic biopsy does not accurately reflect the PD-L1 expression in triple-negative breast cancer.

Clin Exp Med

December 2023

Department of Tumor Pathology and Pathomorphology, Oncology Center, Prof. Franciszek Łukaszczyk Memorial Hospital, Bydgoszcz ul. Romanowska, 85-796, Bydgoszcz, Poland.

PD-L1 expression is known to predict the benefits of immune checkpoint inhibitor therapy for triple-negative breast cancer (TNBC). We examined whether the PD-L1 expression evaluated in biopsy specimens accurately reflects its expression in the whole tumor. Immunohistochemistry was performed on 81 biopsy and resection specimens from patients with TNBC to determine their PD-L1 status.

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