76
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Benedek P, Manninger S, Nagy B. The Number of Colonies and the Density of Honeybees in Sunflower Fields in Relation to the Pollination of the Crop. ACTA ACUST UNITED AC 2009. [DOI: 10.1111/j.1439-0418.1972.tb01764.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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77
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Bertalan R, Patocs A, Nagy B, Derzsy Z, Gullai N, Szappanos A, Rigo J, Racz K. Overrepresentation of BclI polymorphism of the glucocorticoid receptor gene in pregnant women with HELLP syndrome. Clin Chim Acta 2009; 405:148-52. [DOI: 10.1016/j.cca.2009.03.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2009] [Revised: 03/10/2009] [Accepted: 03/24/2009] [Indexed: 11/26/2022]
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78
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Nagy B, Fedonidis C, Photiou A, Wahba J, Paule C, Ma D, Buluwela L, Nagy I. Capsaicin-sensitive primary sensory neurons in the mouse express N-Acyl phosphatidylethanolamine phospholipase D. Neuroscience 2009; 161:572-7. [PMID: 19327387 PMCID: PMC2724038 DOI: 10.1016/j.neuroscience.2009.03.047] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2009] [Revised: 03/17/2009] [Accepted: 03/17/2009] [Indexed: 01/30/2023]
Abstract
Our previous finding, that the capsaicin- and KCl-induced Ca(2+)-dependent production of the intra- and intercellular signaling molecule N-arachidonoyl ethanolamine (anandamide) in cultured primary sensory neurons could be abolished and reduced by approximately 2/3 by capsaicin-induced degeneration of capsaicin-sensitive neurons, respectively suggests that a major sub-population of capsaicin-sensitive cells together with a group of non-capsaicin-sensitive cells should express enzymes involved in Ca(2+)-dependent anandamide synthesis. N-acyl phosphotidylethanolamine phospholipase D (NAPE-PLD) is known to be involved in Ca(2+)-dependent anandamide production. Hence, here, we used reverse transcriptase and quantitative real time polymerase chain reaction to study NAPE-PLD expression in dorsal root ganglia and to clarify the sub-population of cells expressing this enzyme. Cultures prepared from mouse dorsal root ganglia were grown either in the absence or presence of the neurotoxin, capsaicin (10 muM) overnight. We report, that NAPE-PLD is expressed both in dorsal root ganglia and cultures prepared from dorsal root ganglia and grown in the absence of capsaicin. Furthermore, we also report that capsaicin application downregulates the expression of NAPE-PLD as well as the capsaicin receptor, transient receptor potential vanilloid type 1 ion channel, by about 70% in the cultures prepared from dorsal root ganglia. These findings indicate that a major sub-population of capsaicin-sensitive primary sensory neurons expresses NAPE-PLD, and suggest that NAPE-PLD is expressed predominantly by capsaicin-sensitive neurons in dorsal root ganglia. These data also suggest that NAPE-PLD might be a target to control the activity and excitability of a major sub-population of nociceptive primary sensory neurons.
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Key Words
- anandamide
- dorsal root ganglion
- transient receptor vanilloid type 1
- trpv1
- nociceptive
- pain
- anandamide, n-arachidonoyl ethanolamine
- cb1, cannabinoid 1
- cb2, cannabinoid 2
- drg, dorsal root ganglia
- faah, fatty acid amide hydrolase
- gapdh, glyceraldehyde-3-phosphate dehydrogenase
- nape-pld, n-acyl phosphotidylethanolamine phospholipase d
- pcr, polymerase chain reaction
- rt, reverse transcriptase
- trpv1, transient receptor potential vanilloid type 1
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79
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Nagy B, Varkonyi T, Molvarec A, Lazar L, Hupuczi P, Gabor Than N, Rigo J. Leptin gene (TTTC)n microsatellite polymorphism in pre-eclampsia and HELLP syndrome. Clin Chem Lab Med 2009; 47:1033-7. [DOI: 10.1515/cclm.2009.243] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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80
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Pikó H, Vancsó V, Nagy B, Balog J, Nagymihály M, Herczegfalvi A, Tímár L, Bán Z, Karcagi V. Muscular dystrophies: diagnostic approaches in Hungary. ACTA PHYSIOLOGICA HUNGARICA 2008; 95:405-18. [PMID: 19009915 DOI: 10.1556/aphysiol.95.2008.4.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Muscular dystrophies are a genetically heterogeneous group of degenerative muscle disorders. This article focuses on two severe forms of muscular dystrophies and provides genetic data for a large cohort of Hungarian patients diagnosed within the last few years by the authors. The Duchenne/Becker muscular dystrophy (DMD/BMD) is caused by mutations in the dystrophin gene, which is located on chromosome Xp21. The genetic analysis of dystrophin is usually performed by multiplex polymerase chain reaction (PCR), which detects approximately 95% of all deletions but does not distinguish between one and two copies of the exons investigated. The present work, therefore, concentrates on the improvement of the diagnostic panel for the analysis of DMD/BMD in Hungary. Radioactively labelled cDNA probes, encompassing the whole dystrophin gene detect all the deletions and the analysis is quantitative. In addition, the new multiple ligation-dependent probe amplification (MLPA) technique was recently introduced that enabled more reliable and faster quantitative detection of the entire dystrophin gene. The genomic basis of facioscapulohumeral muscular dystrophy (FSHD) is associated with contraction of the D4Z4 repeat region in the subtelomere of chromosome 4q. In case of FSHD, molecular genetic criteria still have to be improved because of the complexity of the disorder.
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81
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Than NG, Abdul Rahman O, Magenheim R, Nagy B, Fule T, Hargitai B, Sammar M, Hupuczi P, Tarca AL, Szabo G, Kovalszky I, Meiri H, Sziller I, Rigo J, Romero R, Papp Z. Placental protein 13 (galectin-13) has decreased placental expression but increased shedding and maternal serum concentrations in patients presenting with preterm pre-eclampsia and HELLP syndrome. Virchows Arch 2008; 453:387-400. [PMID: 18791734 DOI: 10.1007/s00428-008-0658-x] [Citation(s) in RCA: 89] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2008] [Revised: 07/31/2008] [Accepted: 08/15/2008] [Indexed: 12/20/2022]
Abstract
Placental protein 13 (PP13) is a galectin expressed by the syncytiotrophoblast. Women who subsequently develop preterm pre-eclampsia have low first trimester maternal serum PP13 concentrations. This study revealed that third trimester maternal serum PP13 concentration increased with gestational age in normal pregnancies (p < 0.0001), and it was significantly higher in women presenting with preterm pre-eclampsia (p = 0.02) and hemolysis, elevated liver enzymes, and low platelet count (HELLP) syndrome (p = 0.01) than in preterm controls. Conversely, placental PP13 mRNA (p = 0.03) and protein, as well as cytoplasmic PP13 staining of the syncytiotrophoblast (p < 0.05) was decreased in these pathological pregnancies compared to controls. No differences in placental expression and serum concentrations of PP13 were found at term between patients with pre-eclampsia and control women. In contrast, the immunoreactivity of the syncytiotrophoblast microvillous membrane was stronger in both term and preterm pre-eclampsia and HELLP syndrome than in controls. Moreover, large syncytial cytoplasm protrusions, membrane blebs and shed microparticles strongly stained for PP13 in pre-eclampsia and HELLP syndrome. In conclusion, parallel to its decreased placental expression, an augmented membrane shedding of PP13 contributes to the increased third trimester maternal serum PP13 concentrations in women with preterm pre-eclampsia and HELLP syndrome.
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82
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Karádi Z, Takács G, Szalay C, Nagy B, Papp S, Lukáts B, Lénárd L. Complex homeostatic attributes of the forebrain glucose-monitoring neuronal network. Appetite 2008. [DOI: 10.1016/j.appet.2008.04.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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83
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Nagy B, Szendroi A, Romics I. Overexpression of CD24, c-myc and phospholipase 2A in prostate cancer tissue samples obtained by needle biopsy. Pathol Oncol Res 2008; 15:279-83. [PMID: 18752058 DOI: 10.1007/s12253-008-9077-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2008] [Accepted: 06/18/2008] [Indexed: 10/21/2022]
Abstract
Altered CD24, c-myc and phospholipase 2a expression was reported in different cancers. Our aim was to measure the expression of these genes in prostate cancer tissues, and compare it to non-cancerous samples. Prostate tissue samples were collected by needle biopsy from 20 prostate cancer (PCA) and 11 benign prostate hyperplasic (BPH) patients. RNA was isolated; cDNA synthetized, CD24, c-myc and phospholipase 2A (PL2A) expressions were determined by quantitative real-time PCR method. The expression of beta-globin gene was measured for normalization of the gene expression results. Serum prostate specific antigen (PSA) levels were determined by microparticle enzyme immunoassay (MEIA) method. PSA levels were significantly different between the PCA and BPH groups, 252.37 +/- 308.33 ng/ml vs. 3.5 +/- 2.14 ng/ml (p = 0.001), respectively. CD24 expression was 988.86 +/- 3041 ng/microl in prostate tumor and 4.00 +/- 4.25 ng/microl in the BPH group (p = 0.035). The c-myc expression was 88.32 +/- 11.93 ng/microl in the prostate tumor and 17.08 +/- 21.75 ng/microl in the BPH group (p = 0.02), and the PL2A 31.36 +/- 67.02 ng/microl was in PCA and 5.56 +/- 14.08 ng/microl in BPH (p = 0.025). Gleason's scores showed correlation with c-myc (p = 0.019) and PSA (p = 0.033) levels. Overexpression of PL2A, CD24 and c-myc was observed in prostate cancer samples using quantitative real-time PCR method.
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84
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Matic I, Furcic I, Nagy B. Genetic instability of FADD-deficient mouse cells. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71663-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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85
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Radnic M, Marijanovic I, Nagy B. Death receptors and p53 dependent impairment of UV-induced apoptosis in FADD knockouts cells. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)71377-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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86
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Petrini M, Galimberti S, Canestraro M, Savli H, Palumbo GA, Nagy B. Histone deacetylase inhibitor ITF2357 is effective on the P39 cells. A gene expression study. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.18024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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87
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Galimberti S, Savli H, Canestraro M, Canestraro M, Palumbo GA, Nagy B, Di Raimondo F, Petrini M. Bortezomib in a myelodysplastic cell line: A gene expression study. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.18018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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88
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Savli H, Galimberti S, Canestraro M, Nagy B, Palumbo GA, Petrini M. Bortezomib combined with histone deacetylase inhibitor ITF2357 or arsenic trioxide exerts aynergistic anti-proliferative and pro-apoptotic effect on P39 cells. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.18022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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89
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Savli H, Szendröi A, Romics I, Nagy B. Gene network and canonical pathway analysis in prostate cancer: a microarray study. Exp Mol Med 2008; 40:176-85. [PMID: 18446056 PMCID: PMC2679302 DOI: 10.3858/emm.2008.40.2.176] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/15/2008] [Indexed: 11/04/2022] Open
Abstract
The molecular mechanism playing a role in the development of prostate cancer (PCA) is not well defined. We decided to determine the changes in gene expression in PCA tissues and to compare them to those in non-cancerous samples. Prostate tissue samples were collected by needle biopsy from 21 PCA and 10 benign prostate hyperplasic (BPH) patients. Total RNA was isolated, cDNA was synthesized, and gene expression levels were determined by microarray method. In the progression to PCA, 738 up-regulated and 515 down-regulated genes were detected in samples. Analysis using Ingenuity Pathway Analysis (IPA) software revealed that 466 network and 423 functions-pathways eligible genes were up-regulated, and 363 network and 342 functions-pathways eligible genes were down-regulated. Up-regulated networks were identified around IL-1beta and insulin-like growth factor-1 (IGF-1) genes. The NFKB gene was centered around two up- and down-regulated networks. Up-regulated canonical pathways were assigned and four of them were evaluated in detail: acute phase response, hepatic fibrosis, actin cytoskeleton, and coagulation pathways. Axonal guidance signaling was the most significant down-regulated canonical pathway. Our data provide not only networks between the genes for understanding the biologic properties of PCA but also useful pathway maps for future understanding of disease and the construction of new therapeutic targets.
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90
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Hadanich D, Perédi J, Juhász-Román M, Nagy B. The effect of microorganisms deteriorating quality in storing sunflower seed. ACTA ALIMENTARIA 2008. [DOI: 10.1556/aalim.37.2008.1.7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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91
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Galimberti S, Nagy B, Benedetti E, Pacini S, Brizzi S, Caracciolo F, Papineschi F, Ciabatti E, Guerrini F, Fazzi R, Canestraro M, Petrini M. Evaluation of the MDR1, ABCG2, Topoisomerases IIalpha and GSTpi gene expression in patients affected by aggressive mantle cell lymphoma treated by the R-Hyper-CVAD regimen. Leuk Lymphoma 2007; 48:1502-9. [PMID: 17701580 DOI: 10.1080/10428190701402895] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The genomic profile of mantle cell lymphoma (MCL) has been reported to be significantly different from that of other indolent lymphoproliferative disorders, Topoisomerase IIalpha, glutathione-s-transferasepi (GSTpi) and ABCG2 (BCRP) chemoresistance genes being over-expressed in MCL. In our study, expression levels of the above mentioned genes plus MDR1 were tested on bone marrow samples from 20 patients treated with Rituximab plus hyper-CVAD regimen, in order to evaluate a possible impact of the chemoresistance phenomenon on this promising treatment regimen. All patients expressed ABCG2 and MDR1 genes; 85% of cases expressed GSTpi and topoisomerase IIalpha. Only ABCG2 were over-expressed in comparison both with marrow from healthy donors and tonsilar CD5+/CD20+ lymphocytes (adopted as normal counterpart of the neoplastic population). The overall response rate of the entire series was 87.5%, with 44% of complete responses. Fifty-seven percent of patients achieved the clearance of minimal residual disease. Levels of tested genes did not condition either quality of clinical response or PFS (76% at 24 months). Nevertheless, an ABCG2 higher expression appeared associated with a worse PFS and levels of this gene paralleled the status of minimal residual disease. A further evaluation of ABCG2 expression in larger series of MCL patients would be suitable.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B
- ATP Binding Cassette Transporter, Subfamily B, Member 1/genetics
- ATP Binding Cassette Transporter, Subfamily G, Member 2
- ATP-Binding Cassette Transporters/genetics
- Adult
- Aged
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Murine-Derived
- Antigens, Neoplasm/genetics
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Biomarkers, Tumor/genetics
- Case-Control Studies
- Cyclophosphamide/therapeutic use
- DNA Topoisomerases, Type II/genetics
- DNA-Binding Proteins/genetics
- Dexamethasone/therapeutic use
- Doxorubicin/therapeutic use
- Drug Resistance, Multiple
- Drug Resistance, Neoplasm
- Female
- Gene Expression Regulation, Neoplastic
- Glutathione S-Transferase pi/genetics
- Humans
- Lymphoma, Mantle-Cell/drug therapy
- Lymphoma, Mantle-Cell/genetics
- Lymphoma, Mantle-Cell/metabolism
- Male
- Middle Aged
- Neoplasm Proteins/genetics
- Prognosis
- Rituximab
- Survival Rate
- Treatment Outcome
- Vincristine/therapeutic use
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92
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Förster KH, Nagy B. Rational Generating Functions and Matrix-Geometric Invariant Measures. STOCH MODELS 2007. [DOI: 10.1080/15326340701645934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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93
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Bene S, Nagy B, Nagy L, Kiss B, Polgár JP, Szabó F. Comparison of body measurements of beef cows of different breeds. Arch Anim Breed 2007. [DOI: 10.5194/aab-50-363-2007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. Body measurements of 110 beef cows of 9 breeds (Hungarian Simmental, Hereford, Aberdeen Angus, Red Angus, Lincoln Red, Shaver, Charolais, Limousin and Blonde d’Aquitaine) were taken in December 2004. The absolute, relative measurements and measurement indices moreover correlations between age, live weight and measurements were evaluated and compared for the mentioned breeds. Animals in study were born between 1989 and 2002, kept on the same condition on peat-bog soil pasture at Keszthely. Significant differences (P<0.05) were found among breeds in most of the body measurements. Blonde d’ Aquitaine was the heaviest in live weight (638 kg), highest as for the height at withers (142.5 cm), height at rump (146.6 cm) and length of the body (151.5 cm). Limousin had longest measurements as for the length of the rump (47.4 cm) and width of the rump (58.3 cm). Shaver had the longest width between shoulders (52.9 cm) and width of the head (25.1 cm) while Lincoln Red the longest length of the head (52.8 cm). The correlations between live weight and measurements were medium or strong positive (r = 0.40–0.83), between age and measurements slight positive (r = 0.01–0.46), among the different measurements medium or strong positive (r = 0.22–0.81).
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94
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Bashford G, Cameron I, Anderson C, Nagy B, Fish N, Poulos C. Controlled Release Morphine for Chronic Non-Cancer Pain—Multiple N of 1 Trials. PAIN MEDICINE 2007. [DOI: 10.1111/j.1526-4637.2007.00385_4.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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95
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Brimacombe M, Iffy L, Apuzzio JJ, Varadi V, Nagy B, Raju V, Portuondo N. Shoulder dystocia related fetal neurological injuries: the predisposing roles of forceps and ventouse extractions. Arch Gynecol Obstet 2007; 277:415-22. [PMID: 17906870 DOI: 10.1007/s00404-007-0465-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2007] [Accepted: 08/30/2007] [Indexed: 02/04/2023]
Abstract
On the basis of 333 documented cases of permanent perinatal neurological damage, associated with arrest of the shoulders at birth, the authors conducted a retrospective study in order to evaluate the predisposing role, if any, of the utilization of extraction instruments. The investigation revealed that 35% of all injuries occurred in neonates delivered by forceps, ventouse or sequential ventouse-forceps procedures. This frequency was several-fold higher than the prevailing instrument use in the practices of American obstetricians during the same years. A high rate of forceps and ventouse extractions was demonstrable in all birth weight categories. Average weight and moderately large for gestational age fetuses underwent instrumental extractions more often than grossly macrosomic ones. This circumstance indicates that forceps and ventouse are independent risk factors, unrelated to fetal size. Their use entailed central nervous system injuries significantly more often than did spontaneous deliveries. The findings suggest that extraction procedures may be as important as macrosomia among the factors that lead to neurological damage in the child in connection with shoulder dystocia. Because they augment the intrinsic dangers of excessive fetal size exponentially, the authors consider their use in case of > or =4,000 g estimated fetal weight inadvisable. Sequential forceps-ventouse utilization further doubles the risks and is, therefore, to be avoided in all circumstances.
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96
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Nagy B, Galimberti S, Vilpo J, Elonen E, Franssila K, Knuutila S. P150 Expression of ZAP-70, RAF-1 and C-MYC in B-cell lymphomas and chronic leukaemia. Overexpression of ZAP70 predicts poor survival in mantle cell lymphoma. Blood Rev 2007. [DOI: 10.1016/s0268-960x(07)70229-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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97
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Hupuczi P, Nagy B, Rigó B, Szabó G, Berkes E, Sziller I, Papp Z. O09 Study of the most common inherited thrombophilias in HELLP syndrome patients. Blood Rev 2007. [DOI: 10.1016/s0268-960x(07)70027-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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98
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Reichart O, Nagy B, Jozwiak Á, Szakmár K. Rapid method for selective enumeration ofBifidus essensisin ACTIVIA yogurts. ACTA ALIMENTARIA 2007. [DOI: 10.1556/aalim.2007.0006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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99
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Nagy B. Nonmetrical distances on the hexagonal grid using neighborhood sequences. PATTERN RECOGNITION AND IMAGE ANALYSIS 2007. [DOI: 10.1134/s1054661807020022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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100
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Sziller I, Babula O, Ujházy A, Nagy B, Hupuczi P, Papp Z, Linhares IM, Ledger WJ, Witkin SS. Chlamydia trachomatis infection, Fallopian tube damage and a mannose-binding lectin codon 54 gene polymorphism. Hum Reprod 2007; 22:1861-5. [PMID: 17496053 DOI: 10.1093/humrep/dem107] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Mannose-binding lectin (MBL), a component of the innate immune system, provides a first-line defense against invading microorganisms. Polymorphisms in the MBL gene have been associated with increased risk of infection. Chlamydia trachomatis genital tract infections are a major cause of Fallopian tube occlusion. Our objective was to test whether an MBL codon 54 polymorphism might contribute to development of C. trachomatis-associated tubal damage. METHODS In a case-control study, 97 women with occluded and 104 women with patent Fallopian tubes were tested for a history of chlamydial infection by serology and for their MBL codon 54 genotype by PCR and restriction fragment length polymorphism analysis. Clinical data were blinded to those performing all laboratory analyses. RESULTS Women with tubal occlusion who also had a positive chlamydial serology had the highest rate of variant MBL B allele carriage (P<0.001). Among women who were chlamydial antibody negative, allele B carriage was also more frequent in those with blocked, as opposed to patent, Fallopian tubes (P<0.01). CONCLUSIONS Wild-type allele A homozygosity is protective against, while carriage of the variant allele B is a risk factor for, Fallopian tube occlusion in women who are seropositive or seronegative for C. trachomatis.
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