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Kamieniczna M, Fraczek M, Budzinska M, Wojnar L, Nakonechnyy J, Grzeskowiak L, Gill K, Havrylyuk A, Nowicka-Bauer K, Piasecka M, Nakonechnyy A, Chopyak V, Kurpisz M. Antisperm antibodies are not frequently induced in semen of men with testicular hyperthermia. J Reprod Immunol 2018. [DOI: 10.1016/j.jri.2018.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Cybulski C, Wokołorczyk D, Kluźniak W, Jakubowska A, Górski B, Gronwald J, Huzarski T, Kashyap A, Byrski T, Dębniak T, Gołąb A, Gliniewicz B, Sikorski A, Switała J, Borkowski T, Borkowski A, Antczak A, Wojnar L, Przybyła J, Sosnowski M, Małkiewicz B, Zdrojowy R, Sikorska-Radek P, Matych J, Wilkosz J, Różański W, Kiś J, Bar K, Bryniarski P, Paradysz A, Jersak K, Niemirowicz J, Słupski P, Jarzemski P, Skrzypczyk M, Dobruch J, Domagała P, Narod SA, Lubiński J. An inherited NBN mutation is associated with poor prognosis prostate cancer. Br J Cancer 2012; 108:461-8. [PMID: 23149842 PMCID: PMC3566821 DOI: 10.1038/bjc.2012.486] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND To establish the contribution of eight founder alleles in three DNA damage repair genes (BRCA1, CHEK2 and NBS1) to prostate cancer in Poland, and to measure the impact of these variants on survival among patients. METHODS Three thousand seven hundred fifty men with prostate cancer and 3956 cancer-free controls were genotyped for three founder alleles in BRCA1 (5382insC, 4153delA, C61G), four alleles in CHEK2 (1100delC, IVS2+1G>A, del5395, I157T), and one allele in NBS1 (657del5). RESULTS The NBS1 mutation was detected in 53 of 3750 unselected cases compared with 23 of 3956 (0.6%) controls (odds ratio (OR)=2.5; P=0.0003). A CHEK2 mutation was seen in 383 (10.2%) unselected cases and in 228 (5.8%) controls (OR=1.9; P<0.0001). Mutation of BRCA1 (three mutations combined) was not associated with the risk of prostate cancer (OR=0.9; P=0.8). In a subgroup analysis, the 4153delA mutation was associated with early-onset (age ≤ 60 years) prostate cancer (OR=20.3, P=0.004). The mean follow-up was 54 months. Mortality was significantly worse for carriers of a NBS1 mutation than for non-carriers (HR=1.85; P=0.008). The 5-year survival for men with an NBS1 mutation was 49%, compared with 72% for mutation-negative cases. CONCLUSION A mutation in NBS1 predisposes to aggressive prostate cancer. These data are relevant to the prospect of adapting personalised medicine to prostate cancer prevention and treatment.
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Affiliation(s)
- C Cybulski
- Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, ul. Połabska 4, Szczecin 70-115, Poland
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Abstract
In the present paper, a procedure is developed for fully automatic recognition of the frontal sinus in cranial radiographs. An X-ray image of a whole skull is required at the input of the procedure, which consists of three subsequent steps: the selection of a rectangular region of interest, containing the sinus; detection of the line of brow ridges; and fronto-nasal suture, detection of the borders of the frontal sinus. The recognition algorithm is based on a method of connectivity-preserving thresholding, introduced in the present study, and on watersheds from markers. Totally, 50 X-ray images have been analyzed. The frontal sinus borders were recognized correctly in 41 cases.
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Affiliation(s)
- Zbisław Tabor
- Institute of Applied Computer Science, Cracow 30-059, Poland.
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Elas M, Bielanska J, Pustelny K, Plonka PM, Drelicharz L, Skorka T, Tyrankiewicz U, Wozniak M, Heinze-Paluchowska S, Walski M, Wojnar L, Fortin D, Ventura-Clapier R, Chlopicki S. Detection of mitochondrial dysfunction by EPR technique in mouse model of dilated cardiomyopathy. Free Radic Biol Med 2008; 45:321-8. [PMID: 18466775 DOI: 10.1016/j.freeradbiomed.2008.04.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2007] [Revised: 03/21/2008] [Accepted: 04/09/2008] [Indexed: 11/28/2022]
Abstract
Tgalphaq44 mice with targeted overexpression of activated Galphaq protein in cardiomyocytes mimic many of the phenotypic characteristics of dilated cardiomyopathy in humans. However, it is not known whether the phenotype of Tgalphaq44 mice would also involve dysfunction of cardiac mitochondria. The aim of the present work was to examine changes in EPR signals of semiquinones and iron in Fe-S clusters, as compared to classical biochemical indices of mitochondrial function in hearts from Tgalphaq44 mice in relation to the progression of heart failure. Tgalphaq44 mice at the age of 14 months displayed pulmonary congestion, increased heart/body ratio and impairment of cardiac function as measured in vivo by MRI. However, in hearts from Tgalphaq44 mice already at the age of 10 months EPR signals of semiquinones, as well as cyt c oxidase activity were decreased, suggesting alterations in mitochondrial electron flow. Furthermore, in 14-months old Tgalphaq44 mice loss of iron in Fe-S clusters, impaired citrate synthase activity, and altered mitochondrial ultrastructure were observed, supporting mitochondrial dysfunction in Tgalphaq44 mice. In conclusion, the assessment of semiquinones content and Fe(III) analysis by EPR represents a rational approach to detect dysfunction of cardiac mitochondria. Decreased contents of semiquinones detected by EPR and a parallel decrease in cyt c oxidase activity occurs before hemodynamic decompensation of heart failure in Tgalphaq44 mice suggesting that alterations in function of cardiac mitochondria contribute to the development of the overt heart failure in this model.
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Affiliation(s)
- Martyna Elas
- Department of Biophysics, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland.
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Drelicharz L, Kozlovski V, Skorka T, Heinze-Paluchowska S, Jasinski A, Gebska A, Guzik T, Olszanecki R, Wojnar L, Mende U, Csanyi G, Chlopicki S. NO and PGI(2) in coronary endothelial dysfunction in transgenic mice with dilated cardiomyopathy. Basic Res Cardiol 2008; 103:417-30. [PMID: 18431525 DOI: 10.1007/s00395-008-0723-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2007] [Accepted: 03/11/2008] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The aim of the present work was to analyze coronary endothelial function in the transgenic mouse model of dilated cardiomyopathy (Tgalphaq*44 mice). METHODS Coronary vasodilatation, both NO-dependent (induced by bradykinin) and PGI(2)-dependent (induced by acetylcholine), was assessed in the isolated hearts of Tgalphaq*44 and FVB mice. Cardiac function was analyzed in vivo (MRI). RESULTS In Tgalphaq*44 mice at the age of 2-4 months cardiac function was preserved and there were no alterations in endothelial function. By contrast, in Tgalphaq*44 mice at the age of 14-16 months cardiac function was significantly impaired and NO, but not PGI(2)-dependent coronary function was altered. Interestingly, the basal level of PGI(2) in coronary circulation increased fourfold as compared to FVB mice. Cardiac O(2) (-) production increased 1.5-fold and 3-fold in Tgalphaq*44 vs. FVB mice at the age of 2-6 and 14-16 months, respectively, and was inhibited by apocynin. Interestingly, inhibition of NADPH oxidase or NOS-3 normalized augmented PGI(2) production in Tgalphaq*44 mice. There was also an increased expression of gp91phox in Tgalphaq*44 vs. FVB hearts, without evident alterations in the expression of COX-1, COX-2, NOS-3 and PGI(2)-synthase. CONCLUSIONS In the mouse model of dilated cardiomyopathy, endothelial dysfunction in coronary circulation is present in the late but not the early stage of heart failure pathology and is characterized by a decrease in NO bioavailability and a compensatory increase in PGI(2). Both the decrease in NO activity and the increase in PGI(2) activity may result from excessive O(2) (-) production by cardiac NADPH oxidase in Tgalphaq*44 hearts.
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Affiliation(s)
- Lukasz Drelicharz
- Dept. of Experimental Pharmacology, Jagiellonian University Medical College, Grzegorzecka 16, Krakow, 31-531, Poland
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Franczyk-Zarów M, Kostogrys RB, Szymczyk B, Jawień J, Gajda M, Cichocki T, Wojnar L, Chlopicki S, Pisulewski PM. Functional effects of eggs, naturally enriched with conjugated linoleic acid, on the blood lipid profile, development of atherosclerosis and composition of atherosclerotic plaque in apolipoprotein E and low-density lipoprotein receptor double-knockout mice (apoE/LDLR− / − ). Br J Nutr 2007; 99:49-58. [PMID: 17678565 DOI: 10.1017/s0007114507793893] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The objective of this study was to evaluate potential anti-atherogenic properties of hen eggs enriched naturally with conjugated linoleic acid (CLA) isomers (cis-9,trans-11 andtrans-10,cis-12). Eighteen apoE and LDL receptor double-knockout mice (apoE/LDLR− / − ), at the age of 4 months with pre-established atherosclerosis, were randomly assigned to three experimental groups (n6) and fed AIN-93G-based diets for the next 2 months. The experimental diets were: AIN-93G+ CLA-free egg-yolk powder (control); AIN-93G+ CLA-free egg-yolk powder +0·1 % CLA (CLA-supplemented eggs); and AIN-93G+ CLA-enriched egg-yolk powder, providing 0·1 % CLA (CLA-enriched eggs). For assessment of anti-atherogenic properties of CLA-enriched or CLA-supplemented eggs the following criteria were used: (1) serum lipid profile; (2) development of atherosclerosis; and (3) composition of atherosclerotic plaque. CLA-enriched eggs, compared with CLA-supplemented eggs, reduced significantly (P < 0·05) total plasma cholesterol in the mice. At the same time, both CLA-supplemented eggs and CLA-enriched eggs tended to decrease the size of atherosclerotic plaque in aortic roots of mice. Most importantly, atherosclerotic plaques of mice fed CLA-enriched eggs showed significantly (P < 0·05) reduced number of atherogenic macrophages and increased area occupied by smooth muscle cells in atherosclerotic lesions. In conclusion, CLA-enriched eggs exerted an anti-inflammatory effect more effectively than CLA-supplemented eggs. This anti-inflammatory effect can be considered their major functional claim that warrants further exploitation.
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Affiliation(s)
- Magdalena Franczyk-Zarów
- Department of Human Nutrition, Faculty of Food Technology, Agricultural University of Kraków, ul. Balicka 122, 30-149 Kraków, Poland
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Chlopicki S, Csanyi G, Franczyk M, Gajda M, Jawien J, Walski M, Wojnar L, Pisulewski P. PO9-229 IMPAIRMENT OF NO AND UPREGULATION OF COX-2/PGI2 AND EDHF PATHWAYS IN APOE/LDLR −/− MICE; RELATIONSHIP WITH DEVELOPMENT OF ATHEROSCLEROTIC PLAQUES. ATHEROSCLEROSIS SUPP 2007. [DOI: 10.1016/s1567-5688(07)71239-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Zadrag R, Wojnar L, Bartosz G, Biliński T. Does yeast shmooing mean a commitment to apoptosis? Cell Biol Int 2006; 30:205-9. [PMID: 16376583 DOI: 10.1016/j.cellbi.2005.10.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2005] [Revised: 09/25/2005] [Accepted: 10/19/2005] [Indexed: 11/25/2022]
Abstract
Treatment of yeast Saccharomyces cerevisiae with alpha-pheromone has been reported to lead to massive apoptosis of cells finding no conjugation partner [Severin FF, Hyman AA. Pheromone induces programmed cell death in S. cerevisiae. Curr Biol 2002;12:R233-5]. We report here that this effect is not common in yeast. Using different yeast strains, we demonstrate that identical treatment results in a low mortality even after prolonged treatment with the pheromone. These findings are followed by a general discussion of the biological relevance of apoptosis in yeast.
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Affiliation(s)
- Renata Zadrag
- Department of Biochemistry and Cell Biology, University of Rzeszów, ul. Rejtana 16C, 35-959 Rzeszów, Poland
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Szydłowski L, Wojnar L, Marek-Szydłowska T. [Semiautomatic algorithm for tracing an outline of the endocardium in newborns]. Przegl Lek 2003; 59:723-7. [PMID: 12632896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Visual assessment of the endocardial outline is too subjective and the results do not provide enough support for reliable analysis. The main problem that hinders echocardiographic diagnosis in measurements of ventricular size and shape during subsequent cycles of cardiac function lies in difficulties in obtaining precise delineation of endocardial margins. A new, semiautomatic algorithm for tracing endocardial outlines of newborns that were detectable in echocardiographic images is presented. The material consisted of 1920 historical echograms of newborns with selected congenital heart defects (total anomalous pulmonary venous return--TAPVR, hypoplastic left heart syndrome--HLHS, and transposition of the great arteries--TGA) and control group. The algorithm was successfully used in the analysis of 384 images of heart chambers (right and left ventricles) of newborns in systole and diastole. The results were subjected to a statistical analysis and revealed that semiautomatic algorithms can give consistent, repeatable, good quality results, and image analysis methods can be an efficient, additional tool for the quantitative interpretation of echocardiograms of the endocardium in newborns.
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Affiliation(s)
- Lesław Szydłowski
- Klinika Kardiologii Dzieciecej Wydziału Lekarskiego Uniwersytetu Jagiellońskiego, Kraków
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Szydłowski L, Wojnar L, Marek-Szydłowska T. Differences between right ventricular contractility in newborns with preload and afterload changes in selected congenital heart defects. Acta Cardiol 2002; 57:77-8. [PMID: 11918168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Lesław Szydłowski
- Department of Cardiology, Polish-American Children's Hospital, CMUJ, Kraków, Poland
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Tesiorowski M, Kacki W, Jasiewicz B, Zarzycka M, Wojnar L. [Computer analysis of bones and regeneration on radiographs taken during limb lengthening--introductory comments]. Chir Narzadow Ruchu Ortop Pol 2001; 66:73-8. [PMID: 11481989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Computer assisted image analysis is used for qualitative assessment of radiographs more and more often. The aim of this study was to define a method enabling objective assessment of changes in bone structure, using standard radiographs during limb elongation. Application of such analysis for assessment of bone and regenerate during limb elongation is described. The method of estimation of the obtained results is also presented. The obtained results encourage the authors to continue their studies, so as to make objective assessment of bone using standard radiographs a common method.
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Affiliation(s)
- M Tesiorowski
- Klinika Ortopedii i Rehabilitacji Dzieci i Młodziezy w Zakopanem, Uniwersytet Jagielloński, Collegium Medicum
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Czerwiński E, Hübner K, Wojnar L, Bajer M. [Computer analysis of the radiographic image of bones and joints]. Przegl Lek 1997; 54:257-9. [PMID: 9333876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Various possibility of computerized analysis of radiographic image of bone and joint are presented. The principle of digital image recording and processing are described. Practical application of computer programs of bone structure analysis and measurement of joint width using image analysis procedure are presented.
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Affiliation(s)
- E Czerwiński
- Kliniki Ortopedii Collegium Medicum, Uniwersytetu Jagiellońskiego w Krakowie
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