Publications by authors named "Ryszard Wierzbicki"

Background: The purpose of this study was to investigate the potential of a combination of 3D mixed-reality visualization of medical images using CarnaLife Holo (MedApp, Poland) system as a supporting tool for innovative, minimally invasive surgery/irreversible electroporation-IRA, Nano-Knife), microwave ablation (MWA)/for advanced gastrointestinal tumors. Eight liver and pancreatic tumor treatments were performed. In all of the patients undergoing laparoscopy or open surgery volume and margin were estimated by preoperative visualization.

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Madelung's disease is a rare disorder described for the first time in the year 1846 by Brodie. It is characterized by the occurrence of progressive, excessive, and symmetrical deposits of adipose tissue in the subcutaneous layer. Most often, these changes concern the neck, the nape of the neck, arms, and upper back, giving the patients a specific, pseudoathletic appearance.

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Nowadays, gastric cancer is one of the most common neoplasms and the fourth cause of cancer-related death on the world. Regarding the age at the diagnosis it is divided into early-onset gastric carcinoma (45 years or younger) and conventional gastric cancer (older than 45). Gastric carcinomas are rarely observed in young population and rely mostly on genetic factors, therefore provide the unique model to study genetic and environmental alternations.

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Background And Purpose: It is uncertain whether local control is acceptable after preoperative radiotherapy and local excision (LE). An optimal preoperative dose/fractionation schedule has not yet been established.

Material And Methods: In a phase III study, patients with cT1-2N0M0 or borderline cT2/T3N0M0 < 4 cm rectal adenocarcinomas were randomised to receive either 5 × 5 Gy plus 1 × 4 Gy boost or chemoradiation: 50.

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Unlabelled: ntroduction: One of the most important goals of preparing a patient for elective gastrointestinal cancer surgery is prevention of postoperative complications. The literature gives many ways to prepare for surgery, but only a few suggests that pre-operative use of rifaximin provides benefits in the form of fewer perioperative complications and reduces the severity of pain during this period. O bjective: The presented project is a retrospective analysis of the effectiveness of rifaximin in the prevention of perioperative complications in patients treated in the Unit of General Surgery with the Orthopedic and Urology in the Hospital of the Ministry of the Interior and Administration in Lublin, and a review of international literature in this subject.

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Purpose: To assess local control after preoperative radiation and local excision and to determine an optimal radiotherapy regimen.

Methods: Eighty-nine patients with G1-2 rectal adenocarcinoma <3-4 cm; unfavourable cT1N0 (23.6%), cT2N0 (62.

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Background And Purpose: To report an early analysis of prospective study exploring preoperative radiotherapy and local excision in rectal cancer.

Materials And Methods: Mucosa at tumour edges was tattooed. Patients with cT1-3N0 tumour <3-4 cm were treated with either 5x5Gy+4Gy boost (N=31) or chemoradiation (50.

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The influence of amifostine alone and in combination with doxorubicin, cytarabine, and etoposide on the cell growth and on bcl-2, bax and p65 gene expression was investigated in human acute promyelocytic leukemia cell line HL-60. No or very little influence of the exposure of HL-60 cells to amifostine (10(-6) to 10(-2) M) on cell proliferation was shown. Proliferation of HL-60 cells exposed to doxorubicin, cytarabine, or etoposide dropped down with increasing doses of these drugs.

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Background: The aim of this study was to examine the accumulation of endomorphin-1 (Tyr-Pro-Trp-Phe-NH2) and endomorphin- 2 (Tyr-Pro-Phe-Phe-NH2) labelled with radioiodine in tumour-bearing C3H/Bi mice.

Material And Methods: Mice C3H/Bi bearing transplantable mammary adenocarcinoma were used as animal models to study the interaction between micro-opioid receptors and endomorphin-1 and 2. The expression of the micro-opioid receptor in the tumours was confirmed by cross-linking assay and by RT- PCR technique.

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Cancer procoagulant (CP) is a cysteine protease produced by fetal and malignant tissues, activating in vitro blood coagulation factor X. It has been demonstrated that CP is able to stimulate blood platelet adhesion to fibrinogen and collagen. The pro-adhesive properties of CP could play an important role in metastatic spread of cancer as well as in primary tumor growth.

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The influence of carboplatin alone and carboplatin in combination with cytoprotective agent amifostine on the growth, caspase 3 activity and some apoptotic genes expression was investigated in vitro in human acute promyelocytic leukemia HL-60 cells. Proliferation of HL-60 cells exposed to carboplatin dropped down with increasing dose of the drug. This effect was slightly higher when carboplatin was used in combination with amifostine.

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