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EN
Specificity of targeting of the oxidative stress towards lipid and protein fractions in a model of estrogen-induced Syrian hamster nephrocarcinogenesis was evaluated. The amount of proteins modified by oxidative stress was significantly elevated as early as one month after the initial implantation of estradiol to the experimental versus the control group, while the stress did not affect lipids. Subcellular localization of the oxidative stress target was determined by the analysis of protein oxidation in subcellular fractions of kidney cells. The endoplasmic reticulum membranes were the fraction most affected by the oxidative stress.
EN
Thoracic duct injuries are a rare complication of thyroid surgery. This report documents two cases of thoracic duct injury complicated by formation of chyloma following thyroid surgery. The injury was identified post-operatively and treated successfully. We review the diagnostic and therapeutic options and discuss their applicability to our patients.
EN
Background We surveyed patients with hemorrhoids about their behavior regarding searching for information about that disease and confronted it with data obtained from Google Trends website and Google searches. We aimed to determine sources of information on hemorrhoids used by patients. Secondary aim was to assess the quality of information provided by Internet in particular. Material and methods We collected 78 surveys from patients of the outpatient surgical clinic at Medical University of Gdańsk, in which we asked about sources of information about hemorrhoids. We used Google Trends to analyze most often used search queries associated with that topic. In result, we analyzed the content of top 10 Google search results of that queries in order to verify reliability. Results Over 80% of surveyed patients looked for information about that disease online, 50% of whom were satisfied with the quality of information obtained. Our Google Trends analysis showed that term hemorrhoids has overwhelming prevalence in comparison to remaining terms. Analysis of top 10 Google search results showed that 7 in 10 organic links lead to websites with professional information about hemorrhoids. Conclusions Patients use the Internet as a source of knowledge about hemorrhoids and find it satisfactory. Moreover, our research indicates that this information is reliable.
EN
Recent years, obesity is a growing health problem also in patients with chronic renal failure and end it’s end stage. This situation has a negative impact both on the extension of the waiting period for transplantation, and the survival rate of the transplanted organ and the recipient. Weight loss through lifestyle modification before transplantation is ambiguous. Its well known fact of rapid body mass gain after transplantation, and finnaly the results of transplantation are not better than those of patients who have not reduced body weight. The paper presents preliminary experience associated with bariatric operations of three chronic dialysed patients with morbid obesity BMI> 35 kg/m2, all patients had been treated by Roux-en-Y gastric by-pass (RYGB). All operated patients were classified as potential recipients were listed by Poltransplant. One of them three months after RYGB surgery underwent without complications a renal transplantation. Preliminary experiences based on operating these three caese confirmed the complete safety of this type of approach in patients with end-stage chronic kidney disease (CKD).
EN
Background: We surveyed patients with hemorrhoids about their behavior regarding searching for information about that disease and confronted it with data obtained from Google Trends website and Google searches. We aimed to determine sources of information on hemorrhoids used by patients. Secondary aim was to assess the quality of information provided by Internet in particular. Material and methods: We collected 78 surveys from patients of the outpatient surgical clinic at Medical University of Gdańsk, in which we asked about sources of information about hemorrhoids. We used Google Trends to analyze most often used search queries associated with that topic. In result, we analyzed the content of top 10 Google search results of that queries in order to verify reliability. Results: Over 80% of surveyed patients looked for information about that disease online, 50% of whom were satisfied with the quality of information obtained. Our Google Trends analysis showed that term hemorrhoids has overwhelming prevalence in comparison to remaining terms. Analysis of top 10 Google search results showed that 7 in 10 organic links lead to websites with professional information about hemorrhoids. Conclusions: Patients use the Internet as a source of knowledge about hemorrhoids and find it satisfactory. Moreover, our research indicates that this information is reliable.
6
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Dynamics of estrogen-induced oxidative stress

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EN
The objective of this study was to assess the dynamics of oxidative damage to cellular macromolecules such as proteins, lipids and DNA under conditions of oxidative stress triggering early stages of estrogen-dependent carcinogenesis. A rodent model of carcinogenesis was used. Syrian hamsters were sacrificed after 1, 3, 5 h and one month from the initial implantation of estradiol. Matching control groups were used. Kidneys as target organs for estradiol-mediated oxidative stress were excised and homogenized for biochemical assays. Subcellular fractions were isolated. Carbonyl groups (as a marker of protein oxidation) and lipid hydroxyperoxides were assessed. DNA was isolated and 8-oxodGuo was assessed. Electron paramagnetic resonance spectroscopy was used to confirm the results for lipid peroxidation. Exposition to estradiol in the rodent model leads to damage of macromolecules of the cell, including proteins and DNA, but not lipids. Proteins appear to be the primary target of the damage but are closely followed by DNA. It has previously been speculated that protein peroxides can increase DNA modifications. This time sequence was observed in our study. Nevertheless, the direct relation between protein and DNA damage still remains unsolved.
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