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Agrebi I, Jaziri A, Kanoun H, Dammak N, Boudabous M, Toumi S, Yaich S, Tahri N, Kammoun A, Makni H, Kammoun K, Boudawara T, Hmida MB. Dorfman-Chanarin Syndrome with Renal Involvement: A Rare Case Report and Literature Review. Indian J Nephrol 2023; 33:472-475. [PMID: 38174297 PMCID: PMC10752395 DOI: 10.4103/ijn.ijn_203_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/30/2022] [Accepted: 08/21/2022] [Indexed: 01/05/2024] Open
Abstract
Dorfman-Chanarin syndrome (DCS) is a rare autosomal recessive disease. It is a multisystemic disease in which renal involvement is uncommon. We report the case of a woman with nephrotic syndrome associated with DCS. A 36-year-old woman was referred to the nephrology department for edema with known history for DCS. On physical examination, she had ichthyosiform erythroderma with generalized scaly skinand ascites. The ophthalmologic examination revealed a cataract in the right eye. Abdominal ultrasound examination showed hepatomegaly and splenomegaly. Laboratory tests showed normal renal and liver function. The blood cell count showed pancytopenia. Immunologic exams showed the presence of anti-mitochondrial antibodies. Kidney biopsy showed mesangial proliferative glomerulonephritis with extensive lipid vacuoles in the tubular epithelial cells. Immunofluorescence study showed mesangial deposits of IgG, C3, kappa, and lambda. To the best of our knowledge, this is the first case of DCS with renal involvement reported in an adult.
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Affiliation(s)
- Ikram Agrebi
- Department of Nephrology, University of Sfax, School of Medicine, Hedi Chaker Hospital, Sfax, Tunisia
| | - Achraf Jaziri
- Department of Nephrology, University of Sfax, School of Medicine, Hedi Chaker Hospital, Sfax, Tunisia
| | - Houda Kanoun
- Laboratory of Research of Renal Pathology, University of Sfax, LR19ES11, Sfax, Tunisia
- Department of Genetic, Hedi Chaker Hospital, Sfax, Tunisia
| | - Najla Dammak
- Department of Nephrology, University of Sfax, School of Medicine, Hedi Chaker Hospital, Sfax, Tunisia
- Laboratory of Research of Renal Pathology, University of Sfax, LR19ES11, Sfax, Tunisia
| | - Mouna Boudabous
- Department of Gastroenterology, Hedi Chaker Hospital, Sfax, Tunisia
| | - Salma Toumi
- Department of Nephrology, University of Sfax, School of Medicine, Hedi Chaker Hospital, Sfax, Tunisia
- Laboratory of Research of Renal Pathology, University of Sfax, LR19ES11, Sfax, Tunisia
| | - Soumaya Yaich
- Department of Nephrology, University of Sfax, School of Medicine, Hedi Chaker Hospital, Sfax, Tunisia
- Laboratory of Research of Renal Pathology, University of Sfax, LR19ES11, Sfax, Tunisia
| | - Nabil Tahri
- Department of Gastroenterology, Hedi Chaker Hospital, Sfax, Tunisia
| | - Arwa Kammoun
- Department of Immunology, Hedi Chaker Hospital, Sfax, Tunisia
| | - Hafedh Makni
- Department of Immunology, Hedi Chaker Hospital, Sfax, Tunisia
| | - Khawla Kammoun
- Department of Nephrology, University of Sfax, School of Medicine, Hedi Chaker Hospital, Sfax, Tunisia
- Laboratory of Research of Renal Pathology, University of Sfax, LR19ES11, Sfax, Tunisia
| | - Tahya Boudawara
- Laboratory of Anatomopathology, Habib Bourguiba Hospital, Sfax, Tunisia
| | - Mohamed Ben Hmida
- Department of Nephrology, University of Sfax, School of Medicine, Hedi Chaker Hospital, Sfax, Tunisia
- Laboratory of Research of Renal Pathology, University of Sfax, LR19ES11, Sfax, Tunisia
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RIGUEN M, Chaker H, Fandri B, Dammak N, Toumi S, Kammoun A, Makni H, Boudawara T, Yaich S, Kammoun K, Ben Hmida M. POS-545 CONTRIBUTION OF RENAL GLUCOCORTICOID RECEPTOR EXPRESSION IN IMMUNOHISTOCHEMISTRY DURING IDIOPATHIC NEPHROTIC SYNDROME. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.576] [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: 10/19/2022] Open
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Riguen M, Chaker H, Dammak N, Toumi S, Kammoun A, Makni H, Boudawara T, Yaich S, Kammoun K, Ben Hmida M. Apport de l’expression rénale des récepteurs aux glucocorticoïdes en immunohistochimie au cours du syndrome néphrotique idiopathique. Nephrol Ther 2021. [DOI: 10.1016/j.nephro.2021.07.212] [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: 11/25/2022]
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Barhoumi H, Agrebi I, Heni S, Kammoun A, Hachida H, Kammoun K, Makni H, Masmoudi H, Boudawara T, Ben Hmida M. Pronostic des vascularites à ANCA : à propos d’une cohorte tunisienne. Nephrol Ther 2020. [DOI: 10.1016/j.nephro.2020.07.120] [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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Charfi A, Mahfoudh N, Kamoun A, Frikha F, Dammak C, Gaddour L, Hakim F, Maalej L, Mallek B, Kammoun I, Bahloul Z, Makni H. Association of HLA Alleles with Primary Sjögren Syndrome in the South Tunisian Population. Med Princ Pract 2019; 29:32-38. [PMID: 31272097 PMCID: PMC7024883 DOI: 10.1159/000501896] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 07/04/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE In order to investigate human leukocyte antigen (HLA) genes predisposing to primary Sjögren syndrome (pSS), we conducted an association study using HLA loci (A, B, and DRB1) and 9 polymorphic microsatellite markers spanning the HLA region in pSS patients as compared to healthy individuals. SUBJECTS AND METHODS Forty-four patients fitting the European criteria of pSS and 123 healthy controls were analyzed for their HLA class I and class II alleles. HLA class I typing was performed using a standard microlymphocytotoxicity method followed by PCR-SSP. HLA-DRB1 genotyping was performed using PCR-SSP. We studied the polymorphism of 9 microsatellite markers for both groups. Microsatellite genotyping was performed using the PCR fluorescent technique. RESULTS We observed a positive association between HLA-B15 and pSS in the Tunisian population (p = 0.004, OR 7.57). The comparison of the frequencies of DRB1 alleles in pSS patients and controls confirmed the association of the DRB1*03 allele with pSS (p = 0.02, OR 2.36). On the other hand, the association study of microsatellite markers showed that the a9 allele of D6S265 marker and the a20 of C1.2.C were found to be positively associated with pSS as compared to controls (p =0.0003, OR 10.29, and p =0.001, OR 4.79, respectively). Using the "Haplo.stats" software analysis, we found that the most associated region was located in the HLA class I region and limited by HLA-A and D6S265 loci (p = 0.00056). CONCLUSION The results of this study support the hypothesis of the existence of a susceptibility gene for pSS located in the HLA class I and III regions.
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Affiliation(s)
- Aida Charfi
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia,
| | - Nadia Mahfoudh
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Arwa Kamoun
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Feten Frikha
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Chifa Dammak
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Lilia Gaddour
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Feiza Hakim
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Leila Maalej
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Bakhta Mallek
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Ines Kammoun
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Zouhir Bahloul
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Hafedh Makni
- Department of Histocompatibility, Hedi Chaker University Hospital, Sfax, Tunisia
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Hachicha H, Mahfoudh N, Fourati H, Elloumi N, Marzouk S, Feki S, Fakhfakh R, Frikha F, Ayadi A, Maatoug A, Gaddour L, Hakim F, Bahloul Z, Makni H, Masmoudi H, Kammoun A. HLA Class III: A susceptibility region to systemic lupus erythematosus in Tunisian population. PLoS One 2018; 13:e0198549. [PMID: 29912900 PMCID: PMC6005577 DOI: 10.1371/journal.pone.0198549] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 05/21/2018] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Short tandem repeats (STR) are usually used as informative polymorphic markers for genetic mapping and for disease susceptibility analysis. The involvement of these microsatellite markers localized in the MHC region was reported in many auto-immune diseases. In this study we analyzed for the first time eight polymorphisms of microsatellite loci at the HLA region: D6S291, D6S273, TNFa, b and c, MICA, D6S265 and D6S276, in Tunisian systemic lupus erythematosus (SLE) patients. MATERIALS AND METHODS We performed a case control study in which the microsatellite loci were amplified using specific primers labeled with NED, VIC, PET or 6-FAM and analyzed using GeneScan software 3.7. For the statistical analysis, we used SPSS software and we performed a sub-haplotype scoring test using the haplo.stats software developed in the R language. RESULTS We found that two mean associated regions existed; the most statistically significant encompassed the 3 TNF markers (p = 0.0003, OR = 19.34); the latter covered the DR region. In fact, when scoring haplotypes in 3 marker- sliding windows, the p value increased as we moved away from the TNF region and decreased again when we approached the DRB1 locus. We also established for the first time the negative association between alleles of D6S291 and SLE. The majority of clinical and serological correlations were noted with TNF alleles. CONCLUSION Our results confirm the association between TNF and DRB1 polymorphisms and SLE. The association between alleles of D6S291 and SLE needs however to be verified by the analysis of other markers beyond this region.
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Affiliation(s)
- Hend Hachicha
- Immunology Department, Habib Bourguiba University Hospital, Sfax, Tunisia
- UR12SP14, Habib Bourguiba University Hospital, Sfax, Tunisia
- Faculty of Medicine of Sfax, University, Sfax, Tunisia
- * E-mail:
| | - Nadia Mahfoudh
- Histocompatibility Department, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Hajer Fourati
- UR12SP14, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Nesrine Elloumi
- UR12SP14, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Sameh Marzouk
- Internal Medicine Department, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Sawsan Feki
- Immunology Department, Habib Bourguiba University Hospital, Sfax, Tunisia
- UR12SP14, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Raouia Fakhfakh
- UR12SP14, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Faten Frikha
- Internal Medicine Department, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Abir Ayadi
- UR12SP14, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Amira Maatoug
- UR12SP14, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Lilia Gaddour
- Histocompatibility Department, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Feiza Hakim
- Histocompatibility Department, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Zouheir Bahloul
- Internal Medicine Department, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Hafedh Makni
- Histocompatibility Department, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Hatem Masmoudi
- Immunology Department, Habib Bourguiba University Hospital, Sfax, Tunisia
- UR12SP14, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Arwa Kammoun
- Histocompatibility Department, Hedi Chaker University Hospital, Sfax, Tunisia
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Hachicha H, Kammoun A, Mahfoudh N, Marzouk S, Feki S, Fakhfakh R, Fourati H, Haddouk S, Frikha F, Gaddour L, Hakim F, Bahloul Z, Makni H, Masmoudi H. Human leukocyte antigens-DRB1*03 is associated with systemic lupus erythematosus and anti-SSB production in South Tunisia. Int J Health Sci (Qassim) 2018; 12:21-27. [PMID: 29623013 PMCID: PMC5870315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
INTRODUCTION Systemic lupus erythematosus (SLE) is an autoimmune disease with various presentations. This variation is due to the interaction of hormonal, environmental, and genetic factors. Associations between human leukocyte antigens and SLE have long been recognized in different ethnic populations and have been suggested to represent the most important association. OBJECTIVES The objectives of this paper were to determine susceptibility and protection human leukocyte antigens (HLA) Class II markers for SLE and to highlight, for the first time, associations between HLA alleles and clinical and serological features in South Tunisia. METHODS We conducted a case-control study on 75 SLE patients and 123 healthy controls. The HLA Class II DRB1/DQB1 of all patients and controls was genotyped using polymerase chain reaction-sequence specific primer technique. Statistical analysis was performed using SPSS software. RESULTS HLA-DRB1*03 was the principal Class II allele associated with the genetic susceptibility to SLE (pc = 0.02; OR = 2.57; CI = [1.39-4.75]; this allele was also associated with anti-SSB production (P = 0.016; OR = 4.00; CI = [1.24-12.96]). HLA-DRB1*01 was significantly more expressed in SLE patients with neurologic disorders (P = 0.013; OR = 20.25; CI = [1.87-219.21]). No allele was found to be protective against SLE in our study group. CONCLUSION Our results show that in South Tunisia SLE is associated with HLA-DRB1*03 and that some clinical features of SLE may be influenced by specific DRB1 and DQB1 alleles.
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Affiliation(s)
- Hend Hachicha
- Department of Immunology, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
- UR12SP14, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
- Department of Basic Sciences B, Faculty of Medicine of Sfax, Sfax, Tunisia
| | - Arwa Kammoun
- Department of Histocompatibility, Hedi Chaker University Hospital, University of Sfax, Tunisia
| | - Nadia Mahfoudh
- Department of Histocompatibility, Hedi Chaker University Hospital, University of Sfax, Tunisia
| | - Sameh Marzouk
- Department of Internal Medicine, Hedi Chaker University Hospital, University of Sfax, Tunisia
| | - Sawsan Feki
- Department of Immunology, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- UR12SP14, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
| | - Hajer Fourati
- UR12SP14, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
| | - Samy Haddouk
- Department of Immunology, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
- UR12SP14, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
| | - Faten Frikha
- Department of Internal Medicine, Hedi Chaker University Hospital, University of Sfax, Tunisia
| | - Lilia Gaddour
- Department of Histocompatibility, Hedi Chaker University Hospital, University of Sfax, Tunisia
| | - Feiza Hakim
- Department of Histocompatibility, Hedi Chaker University Hospital, University of Sfax, Tunisia
| | - Zouheir Bahloul
- Department of Internal Medicine, Hedi Chaker University Hospital, University of Sfax, Tunisia
| | - Hafedh Makni
- Department of Histocompatibility, Hedi Chaker University Hospital, University of Sfax, Tunisia
| | - Hatem Masmoudi
- Department of Immunology, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
- UR12SP14, Habib Bourguiba University, Hospital of Sfax, Sfax, Tunisia
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Hachicha H, Mahfoudh N, Kammoun A, Frikha F, Feki S, Fakhfakh R, Marzouk S, Gaddour L, Hakim F, Bahloul Z, Makni H, Masmoudi H. Polymorphisme génétique de MICA et lupus érythémateux systémique dans la population Sud Tunisienne. Rev Med Interne 2017. [DOI: 10.1016/j.revmed.2017.03.255] [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: 11/25/2022]
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ElAoud S, Kamoun A, Mahfoudh N, Charfi A, Snoussi M, Hachicha H, Jerbi A, Dammak C, Frikha F, Hakim F, Gaddour L, Bahloul Z, Makni H. Beyond Human Leukocyte Antigen Class I Antigens: Hereditary Hemochromatosis Gene Mutations in Recurrent Aphthous Oral Ulcers and Behçet Disease in the South of Tunisia. Med Princ Pract 2017; 26:427-432. [PMID: 28950260 PMCID: PMC5757568 DOI: 10.1159/000481782] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 09/26/2017] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The aim of this work was to establish human leukocyte antigen (HLA) class I and hereditary hemochromatosis gene (HFE) mutation associations with recurrent aphthous oral ulcers (RAOU) and Behçet disease (BD) in a cohort of Southern Tunisian patients. SUBJECTS AND METHODS A total of 232 patients with RAOU and 123 healthy controls (HCs) were enrolled in this study. The patients were divided into 2 groups based on the presence (BD+: n = 62) or absence of BD (BD-, n = 170). In the BD+ group, 28 patients had severe manifestations of BD. In the BD- group, RAOU was isolated in 81 patients, associated with mucocutaneous manifestations in 58 and with joint symptoms in 25. Complement-dependent microlymphocytotoxicity assay and polymerase chain reaction-restriction fragment length polymorphism were used to study HLA class I polymorphism and HFE mutations, respectively. RESULTS HLA-B51 was positively associated with BD, particularly in those with severe manifestations. No association was detected with HLA class I polymorphism among the BD group. Based on stratification to clinical manifestations, the isolated RAOU was negatively associated with HLA-A1 with a difference close to significance (12 [14.81%] vs. 32 [26.02%] in HCs; p = 0.06). Furthermore, patients with mucocutaneous features had a higher frequency of HLA-B51 (14, 24.14%) than patients without mucocutaneous involvement (11, 11.37%). Considering HFE mutations, patients with isolated RAOU had a higher frequency of H63D when compared with other subgroups, especially after limiting the comparison to 27 patients of at least 5 years of follow-up. CONCLUSION This study showed that, unlike BD, RAOU were not associated with HLA-B51. Moreover, we suggest that H63D mutation was positively associated with isolated RAOU.
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Affiliation(s)
- Sahar ElAoud
- Department of Internal Medicine, Hedi Chaker Hospital, Sfax, Tunisia
| | - Arwa Kamoun
- Department of Histocompatibility, Hedi Chaker Hospital, Sfax, Tunisia
- *Arwa Kamoun, Histocompatibility Department, Hedi Chaker Hospital, Route El Ain, Sfax 3000 (Tunisia), E-Mail
| | - Nadia Mahfoudh
- Department of Histocompatibility, Hedi Chaker Hospital, Sfax, Tunisia
| | - Aida Charfi
- Department of Histocompatibility, Hedi Chaker Hospital, Sfax, Tunisia
| | - Mouna Snoussi
- Department of Internal Medicine, Hedi Chaker Hospital, Sfax, Tunisia
| | - Hend Hachicha
- Department of Immunology Department, Habib Bourguiba Hospital, Sfax, Tunisia
| | - Ameni Jerbi
- Department of Immunology Department, Habib Bourguiba Hospital, Sfax, Tunisia
| | - Chifa Dammak
- Department of Internal Medicine, Hedi Chaker Hospital, Sfax, Tunisia
| | - Feten Frikha
- Department of Internal Medicine, Hedi Chaker Hospital, Sfax, Tunisia
| | - Faiza Hakim
- Department of Histocompatibility, Hedi Chaker Hospital, Sfax, Tunisia
| | - Lilia Gaddour
- Department of Histocompatibility, Hedi Chaker Hospital, Sfax, Tunisia
| | - Zouheir Bahloul
- Department of Internal Medicine, Hedi Chaker Hospital, Sfax, Tunisia
| | - Hafedh Makni
- Department of Histocompatibility, Hedi Chaker Hospital, Sfax, Tunisia
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Kamoun A, Amar WB, Mahfoudh N, Maalej L, Mallek B, Nouma Y, Bardaa S, Makni H, Maatoug S. Extraction Strategy for DNA Recovery from Putrefied Teeth and Skull Bone. AJFSFM 2016. [DOI: 10.12816/0033133] [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: 11/27/2022] Open
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Makki-Rmida F, Kammoun A, Mahfoudh N, Ayadi A, Gibriel AA, Mallek B, Maalej L, Hammami Z, Maatoug S, Makni H, Masmoudi S. Genetic diversity and haplotype structure of 21 Y-STRs, including nine noncore loci, in South Tunisian Population: Forensic relevance. Electrophoresis 2015; 36:2908-13. [PMID: 26331800 DOI: 10.1002/elps.201500204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 08/16/2015] [Accepted: 08/19/2015] [Indexed: 11/11/2022]
Abstract
Y chromosome STRs (Y-STRs) are being used frequently in forensic laboratories. Previous studies of Y-STR polymorphisms in different groups of the Tunisian population identified low levels of diversity and discrimination capacity (DC) using various commercial marker sets. This definitely limits the use of such systems for Y-STRs genotyping in Tunisia. In our investigation on South Tunisia, 200 unrelated males were typed for the 12 conventional Y-STRs included in the PowerPlex® Y System. Additional set of nine noncore Y-STRs including DYS446, DYS456, DYS458, DYS388, DYS444, DYS445, DYS449, DYS710, and DYS464 markers were genotyped and evaluated for their potential in improving DC. Allele frequency, gene diversity, haplotype diversity (HD), and DC calculation revealed that DYS464 was the most diverse marker followed by DYS710 and DYS449 markers. The standard panel of 12 Y-STRs (DC = 80.5%) and the nine markers were combined to obtain DC of 99%. Among the 198 different haplotypes observed, 196 haplotypes were unique (HD = 99.999). Out of the nine noncore set, six Y-STRs (DYS458, DYS456, DYS449, DYS710, DYS444, and DYS464) had the greatest impact on enhancing DC. Our data provided putative Y-STRs combination to be used for genetic and forensic applications.
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Affiliation(s)
- Faten Makki-Rmida
- Service Laboratoire, Unité Empreinte Génétique, CHU Hedi Chaker, Sfax, Tunisie.,Laboratoire Procédés de Criblage Moléculaire et Cellulaire, Centre de Biotechnologie de Sfax, Université de Sfax, Sfax, Tunisie
| | - Arwa Kammoun
- Service Laboratoire, Unité Empreinte Génétique, CHU Hedi Chaker, Sfax, Tunisie
| | - Nadia Mahfoudh
- Service Laboratoire, Unité Empreinte Génétique, CHU Hedi Chaker, Sfax, Tunisie
| | - Adnene Ayadi
- Service Médicine Légale, CHU Habib Bourguiba, Tunisie
| | - Abdullah Ahmed Gibriel
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy, British University in Egypt, Cairo, Egypt
| | - Bakhta Mallek
- Service Laboratoire, Unité Empreinte Génétique, CHU Hedi Chaker, Sfax, Tunisie
| | - Leila Maalej
- Service Laboratoire, Unité Empreinte Génétique, CHU Hedi Chaker, Sfax, Tunisie
| | | | - Samir Maatoug
- Service Médicine Légale, CHU Habib Bourguiba, Tunisie
| | - Hafedh Makni
- Service Laboratoire, Unité Empreinte Génétique, CHU Hedi Chaker, Sfax, Tunisie
| | - Saber Masmoudi
- Laboratoire Procédés de Criblage Moléculaire et Cellulaire, Centre de Biotechnologie de Sfax, Université de Sfax, Sfax, Tunisie
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Djebbi S, Bouktila D, Makni H, Makni M, Mezghani-Khemakhem M. Identification and characterization of novel NBS-LRR resistance gene analogues from the pea. Genet Mol Res 2015; 14:6419-28. [PMID: 26125847 DOI: 10.4238/2015.june.11.18] [Citation(s) in RCA: 3] [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] [Indexed: 11/03/2022]
Abstract
Pea (Pisum sativum) is one of the most cultivated le-gumes in the world, and its yield and seed quality are affected by a variety of pathogens. In plants, NBS-LRR (nucleotide binding site-leucine-rich repeat) is the main class of disease resistance genes. Using degenerate primers deduced from conserved motifs in the NBS domain of known resistance genes, we identified 10 NBS sequences in three varieties of P. sativum. The deduced amino acid sequences of the iden-tified resistance gene analogues (RGAs) exhibited the typical motifs of the NBS domain (P-loop, kinase-2, kinase-3a, and the hydrophobic domain, GLPL) present in the majority of plant proteins belonging to the NBS-LRR class. Phylogenetic analysis showed that seven RGAs belonged to the non-TIR-NBS-LRR subclass and three to the TIR-NBS-LRR subclass. The results of this study provide insights into the structure of this class of resistance genes in the pea, and their evolution-ary relationships with those of other plant species.
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Affiliation(s)
- S Djebbi
- Research Unit on Genomics of Crop Insect Pests, Department of Biology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus El Manar Tunis, Tunisia
| | - D Bouktila
- Research Unit on Genomics of Crop Insect Pests, Department of Biology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus El Manar Tunis, Tunisia
| | - H Makni
- Research Unit on Genomics of Crop Insect Pests, Department of Biology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus El Manar Tunis, Tunisia
| | - M Makni
- Research Unit on Genomics of Crop Insect Pests, Department of Biology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus El Manar Tunis, Tunisia
| | - M Mezghani-Khemakhem
- Research Unit on Genomics of Crop Insect Pests, Department of Biology, Faculty of Sciences of Tunis, University of Tunis El Manar, Campus El Manar Tunis, Tunisia
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Charfi A, Mahfoudh N, Gaddour L, Hakim F, Frikha F, Bahloul Z, Kammoun A, Makni H. Polymorphisme des marqueurs microsatellites de la région HLA chez des patients atteints de syndrome de Sjögren primitif dans la population Sud tunisienne. Rev Med Interne 2015. [DOI: 10.1016/j.revmed.2015.03.105] [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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14
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Loukil H, Kamoun A, Mahfoudh N, Frikha F, Snoussi M, Gaddour L, Hakim F, Bahloul Z, Makni H. Association study of MICA-TM and HLA-class I polymorphism with uveitis in South Tunisian population. ACTA ACUST UNITED AC 2015; 63:101-5. [DOI: 10.1016/j.patbio.2014.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 10/03/2014] [Indexed: 11/24/2022]
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Loukil H, Frikha F, Snoussi M, Kamoun A, Mahfoudh N, Bahloul Z, Makni H. Étude de l’association de MICA-TM et des antigènes HLA classe I avec l’uvéite dans la population sud tunisienne. Rev Med Interne 2014. [DOI: 10.1016/j.revmed.2014.10.295] [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: 10/24/2022]
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Abstract
Barley yellow dwarf disease is a worldwide ubiquitous virus disease of cereal crops. In order to characterize the B/CYDV isolates occurring in Tunisia, 240 barley leaves were randomly sampled from 6 fields following a North-South trend and analyzed by serological and molecular tests. DAS-ELISA results showed 40 positive samples with a prevalence of barley yellow dwarf virus (BYDV)-PAV (77.5%), followed by cereal yellow dwarf virus (CYDV)-RPV (25%) and BYDV-MAV (15%). Studies of the geographic distribution showed a high incidence of B/CYDV in the Tunisian Southern provinces. RT-PCR assays were performed to amplify the viral coat protein gene (CP) and sequence analyses revealed six BYDV-PAV haplotypes named PAV-TN1 to PAV-TN6. Phylogenetic analysis showed that the six Tunisian haplotypes were close to BYDV-PAV-II subspecies and had a strong similarity with Moroccan, Czech, French and German haplotypes. Although PAV-TN2 and PAV-TN5 showed up to 10% divergence from BYDV-PAV-II at the amino acid level, it seems to belong to the same subspecies but in a separated cluster. Our results will be important in developing appropriate control measures against BYDV disease in Tunisia.
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Abstract
Sugarcane yellow leaf virus (ScYLV) causes severe leaf symptoms in sugarcane (Saccharum spp.). It is a single-stranded RNA virus assigned to the genus Polerovirus, family Luteoviridae (1). ScYLV is transmitted by two aphid species, Melanaphis sacchari and Rhopalosiphum maidis. Although barley (Hordeum vulgare), oats (Avena sativa), and wheat (Triticum spp.) are susceptible to ScYLV when experimentally inoculated (3), this virus, related serologically to Barley yellow dwarf virus (BYDV)-RPV (4), has never been detected naturally in these cereals. In this study, 240 barley leaves were randomly collected from six fields in Tunisia following a north-south trend during the high infestation periods (March/April) in the 2013 growing season. Samples were tested by DAS-ELISA, using three antibodies (Bioreba AG, Switzerland), two of them, BYDV-B and BYDV-F, specific to luteoviruses corresponding to BYDV-PAV and BYDV-MAV, respectively, and the third one, BYDV-RPV, specific to the polerovirus synonymous to Cereal yellow dwarf virus (CYDV)-RPV. Based on DAS-ELISA, 30 samples were found positive for B/CYDV infection; 17 out of the 30 infected samples contained a single serotype, BYDV-PAV, and 13 out of the 30 infected samples contained two serotypes, PAV and RPV. Total RNA was extracted from all positive samples, and RT-PCR of the viral CP gene was performed with Lu1/Lu4 primers (2). A product of 531 bp was cloned and sequenced. The identities among the sequences determined varied between 80 to 100%, and from the 17 samples containing BYDV-PAV, six distinct BYDV-PAV sequences were revealed and named PAV-TN1 to PAV-TN6 (GenBank Accession No. JX402453 to JX402457 and KF271792). Fortuitously, all 13 positive samples corresponding to the serotypes PAV-RPV exhibited 98.7 to 99.3% identity with ScYLV isolates. These 13 samples contained three distinct sequences that were named ScYLV-Tun1 to ScYLV-Tun3 (GenBank Accession No. KF836888 to KF836890). Of the 17 PAV-positive samples collected, six were infected with PAV-TN1, four with PAV-TN2, four with PAV-TN3, one with PAV-TN4, one with PAV-TN5, and the last one with PAV-TN6. Of the 13 ScYLV-positive samples, seven were infected with ScYLV-Tun1, four with ScYLV-Tun2, and two with ScYLV-Tun3. Phylogenetic analysis showed that PAV-TN sequences formed a very tight cluster (>98%) corresponding to BYDV subspecies PAV-II, whereas all three Tunisian ScYLV sequences were clustered together. This study provides the first report of ScYLV isolates infecting barley crops in Tunisia, and confirms serological cross-reactivity between ScYLV and BYDV-RPV when commercial antibodies against BYDV-RPV are used. References: (1) C. J. D'Arcy and L. L. Domier. Page 891 in: Virus Taxonomy, 8th Report of the ICTV. C. M. Fauquet et al., eds. Springer-Verlag, New York, 2005. (2) N. L. Robertson and R. French. J. Gen. Virol. 72:1473, 1991. (3) S. Schenck and A. T. Lehrer. Plant Dis. 84:1085, 2000. (4) J. Vega et al. Plant Dis. 81:21, 1997.
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Affiliation(s)
- M Bouallegue
- UR11ES10 GIRC, Faculté des Sciences de Tunis (FST), Université de Tunis, El-Manar 2092, Tunisia
| | - M Mezghani-Khemakhem
- UR11ES10 GIRC, Faculté des Sciences de Tunis (FST), Université de Tunis, El-Manar 2092, Tunisia
| | - H Makni
- UR11ES10 GIRC, Faculté des Sciences de Tunis (FST), Université de Tunis, El-Manar 2092, Tunisia
| | - M Makni
- UR11ES10 GIRC, Faculté des Sciences de Tunis (FST), Université de Tunis, El-Manar 2092, Tunisia
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18
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Affiliation(s)
- Taqi Toufeeq Khan
- Kidney Transplant Surgery, Riyadh Military Hospital, Riyadh, Saudi Arabia
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Kamoun A, Bouzid D, Mahfoudh N, Amouri A, Gaddour L, Hakim F, Tahri N, Masmoudi H, Makni H. Association study of MICA-TM polymorphism with inflammatory bowel disease in the South Tunisian population. Genet Test Mol Biomarkers 2013; 17:615-9. [PMID: 23822824 DOI: 10.1089/gtmb.2012.0423] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Crohn's disease (CD) and ulcerative colitis (UC) are chronic inflammatory disorders of the gastro-intestinal tract with unknown etiology. Both environmental and genetic factors are involved in the pathogenesis of these inflammatory bowel diseases (IBD). AIM The purpose of the present study was to determine the association between the polymorphism of the transmembrane region of MICA (MICA-TM), and the genetic susceptibility in Tunisian patients with IBD. PATIENTS AND METHODS A total of 102 Tunisian patients (66 with UC, 36 with CD) and 123 healthy controls were enrolled in our study. MICA-TM was genotyped by a semiautomatic fluorescent-labelled PCR method, amplicons were analysed on an ABI Prism 310 genotyper. Comparisons of allele frequencies between patients and controls, and between patients' subgroups were performed using SPSS 13.0. RESULTS No MICA allele was significantly increased in both groups of IBD compared to controls. The MICA-A5.1 allele was significantly decreased in CD patients (p=0.006, pc=0.03). In UC, MICA-A6 was associated with the presence of extraintestinal manifestations (p=0.04, pc=0.2), whereas MICA-A5 was associated with late age of onset (p=0.04). In CD, MICA-A6 was significantly increased in active disease patients when compared to moderately active or inactive disease (p=0.03, pc=0.15). CONCLUSION Some clinical features of CD and UC may be influenced by specific MICA-TM alleles. In our South Tunisian population, MICA plays a disease modifying role, rather than being an important gene in the susceptibility for developing IBD.
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Affiliation(s)
- Arwa Kamoun
- Immunology Department, Hédi Chaker Hospital, Sfax 3029, Tunisia.
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Jarboui MA, Mseddi F, Sellami H, Sellami A, Mahfoudh N, Makni F, Makni H, Ayadi A. A comparison of capillary electrophoresis and direct sequencing in upstream conserved sequence region analysis of Pneumocystis jirovecii strains. J Med Microbiol 2013; 62:560-564. [PMID: 23329318 DOI: 10.1099/jmm.0.045336-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The major surface glycoprotein (MSG) of Pneumocystis jirovecii is the most abundant surface protein and appears to play a critical role in the pathogenesis of pneumocystosis. The expressed MSG gene is located immediately downstream of a region called the upstream conserved sequence (UCS). The UCS contains a region of tandem repeats that vary in number and sequence. In the present study, we have used capillary electrophoresis and direct sequencing to detect the variability in the repeat units of UCS. By direct sequencing the PCR products from samples of 13 patients, we have identified three types of repeat units which consisted of 10 nt and three different patterns in the UCS region with three and four repeats: 1, 2, 3 (84.6 %); 1, 2, 3, 3 (8.2 %); and a new genotype 2, 2, 3, 3 (8.2 %). The same samples were analysed by capillary electrophoresis. Three samples (23 %) contained a mixture of two or three different patterns of UCS repeats. In conclusion, quantifying the number of repeat units in the UCS by capillary electrophoresis provides a potential new method for the rapid typing of P. jirovecii and the detection of mixed infection.
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Affiliation(s)
- M A Jarboui
- Fungal and Parasitic Molecular Biology Laboratory, School of Medicine, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
| | - F Mseddi
- Fungal and Parasitic Molecular Biology Laboratory, School of Medicine, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
| | - H Sellami
- Fungal and Parasitic Molecular Biology Laboratory, School of Medicine, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
| | - A Sellami
- Fungal and Parasitic Molecular Biology Laboratory, School of Medicine, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
| | - N Mahfoudh
- Laboratory of Immunology, Hedi Chaker hospital, Sfax, Tunisia
| | - F Makni
- Fungal and Parasitic Molecular Biology Laboratory, School of Medicine, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
| | - H Makni
- Laboratory of Immunology, Hedi Chaker hospital, Sfax, Tunisia
| | - A Ayadi
- Fungal and Parasitic Molecular Biology Laboratory, School of Medicine, University of Sfax, Magida Boulila Street, 3029 Sfax, Tunisia
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21
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Mahfoudh N, Ayadi I, Kamoun A, Ammar R, Mallek B, Maalej L, Hakim F, Gaddour L, Rebai A, Makni H. Analysis of HLA-A, -B, -C, -DR, -DQ polymorphisms in the South Tunisian population and a comparison with other populations. Ann Hum Biol 2012; 40:41-7. [PMID: 23095049 DOI: 10.3109/03014460.2012.734334] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The Human Leucocyte Antigen (HLA) system is often used as a genetic marker for analysing populations. HLA antigen distribution among the Tunisian population is not well defined because of the lack of a general population study. AIM The aim of the present study was to investigate the polymorphism of HLA-A, -B, -C, -DR and -DQ loci in the South Tunisian population. SUBJECTS AND METHODS This study has investigated HLA-A, -B, -C, -DR and -DQ polymorphisms in 123 unrelated healthy individuals originating from the south of Tunisia. HLA class I was studied by serology and completed by polymerase chain reaction-sequence specific primer (PCR-SSP). HLA class II was performed using PCR-SSP. RESULTS The most common alleles were A-2 (0.2154), B-44 (0.1179), C7 (0.2114), DR4 (0.1626) and DQ2 (0.313). A1-B-8-C7-DR3-DQ2 (2.84%) was the predominant haplotype in this population. Comparisons with data of other worldwide populations based on phylogenetic tree and multidimensional scaling analysis were done. This study suggests that both HLA class I and class II polymorphism specificities demonstrate a high diversity in this South Tunisian population, which reflects ancient and recent admixture with neighbouring populations. CONCLUSION The results provide useful information for further studies of Tunisian population evolution, anthropology and for resolving HLA frequencies when searching for HLA-compatible donors in transplantation and for the analysis of disease associations.
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Affiliation(s)
- Nadia Mahfoudh
- Immunology Department, Hospital Hedi, Chaker, Sfax, Tunisia.
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Amouri I, Sellami H, Abbes S, Hadrich I, Mahfoudh N, Makni H, Ayadi A. Microsatellite analysis of Candida isolates from recurrent vulvovaginal candidiasis. J Med Microbiol 2012; 61:1091-1096. [PMID: 22538998 DOI: 10.1099/jmm.0.043992-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Candida albicans and Candida glabrata are the most common causative agents of both vulvovaginal candidiasis (VVC) and recurrent vulvovaginal candidiasis (RVVC). Studying the population structure and genotype differentiation of Candida species that cause RVVC may lead to a significant improvement in clinical management. A total of 106 isolates were collected from 55 patients who were subdivided into three groups. Group I comprised 15 patients with RVVC (n=50 isolates); group II comprised 16 patients, who had a history of at least two episodes of VVC in the last year (n=32 isolates, two from each patient); and group III comprised 24 patients (n=24 isolates) who had experienced a single episode of VVC in the previous 1 year period. C. albicans microsatellite markers CAI, CAIII and CAIV and C. glabrata RPM2, MTI and ERG3 microsatellites were amplified in a multiplex PCR. All isolates were subjected to population genetic analysis, which provided evidence that there is a predominantly clonal population structure of C. albicans in each group. However, recombination was detected to some degree in C. albicans isolates in group III. A genetic homogeneity between the different C. albicans groups was observed. Although, C. glabrata isolates showed an important genetic differentiation between group I and group III (F(ST)=0.207). Genotype analysis revealed that the dominant genotypes of C. glabrata and C. albicans strains were more prevalent in patients with RVVC. The frequent scenario for cases of recurrent infection in our study was strain replacement (53.3%). In conclusion, the identification of recurrence-associated genotypes and a specific C. glabrata population structure in the RVVC group could be a significant marker for further investigations of virulence factors and RVVC management.
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Affiliation(s)
- Imen Amouri
- Laboratory of Parasitic and Fungal Molecular Biology, Medicine School, Sfax University, Sfax, Tunisia
| | - Hayet Sellami
- Laboratory of Parasitic and Fungal Molecular Biology, Medicine School, Sfax University, Sfax, Tunisia
| | - Salma Abbes
- Laboratory of Parasitic and Fungal Molecular Biology, Medicine School, Sfax University, Sfax, Tunisia
| | - Ines Hadrich
- Laboratory of Parasitic and Fungal Molecular Biology, Medicine School, Sfax University, Sfax, Tunisia
| | - Nadia Mahfoudh
- Laboratory of Immunology, Hedi Chaker Hospital, Sfax, Tunisia
| | - Hafedh Makni
- Laboratory of Immunology, Hedi Chaker Hospital, Sfax, Tunisia
| | - Ali Ayadi
- Laboratory of Parasitic and Fungal Molecular Biology, Medicine School, Sfax University, Sfax, Tunisia
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Raboudi F, Chavigny P, Makni H, Vanlerberghe FM, Makni M. Spatial and temporal genetic variation in Tunisian field populations of Macrosiphum euphorbiae (Thomas). Environ Entomol 2012; 41:420-425. [PMID: 22507018 DOI: 10.1603/en11199] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The potato aphid Macrosiphum euphorbiae (Thomas) is a major pest of several economic crops in Tunisia. Using 10 microsatellites, we analyzed five populations of M. euphorbiae sampled during the 2004-2005 solanaceous and cucurbit season (April through September) from five geographic origins. From 235 aphids, 61 different multilocus genotypes were identified of which three genotypes MLG1, MLG2, and MLG42 were predominant on all host plants and regions. MLG1 and MLG2 genotypes were detected in 2004 and did not reappear in spring 2005, while the genotype MLG42 was detected only in 2005. All populations showed significant deviation from Hardy-Weinberg equilibrium even in data sets including one individual per genotype. χ(2) independence tests and analysis of molecular variance showed no significant differentiation among populations collected on different host plant and from different geographic origin, but differences between populations from two successive years were significant. Factorial component analysis corroborates these results. The probable causes of this seasonal variation were discussed.
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Affiliation(s)
- F Raboudi
- Unité de recherche, Génétique des insectes ravageurs des plantes d'intérêt agronomique, Faculté des Sciences de Tunis, University of El Manar, Tunisia.
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Abbes S, Sellami H, Sellami A, Amouri I, Neji S, Makni F, Makni H, Ranque S, Ayadi A. Bases de la résistance au fluconazole des souches de Candida glabrata isolées au CHU de Sfax, Tunisie. J Mycol Med 2012. [DOI: 10.1016/j.mycmed.2011.12.060] [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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Abbes S, Sellami H, Hadrich I, Amouri I, Mahfoudh N, Neji S, Makni F, Makni H, Ayadi A. Génotypage de C. glabrata par de nouveaux marqueurs microsatellites. J Mycol Med 2012. [DOI: 10.1016/j.mycmed.2011.12.061] [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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Ben Hamad M, Mahfoudh N, Marzouk S, Kammoun A, Gaddour L, Hakim F, Fakhfakh F, Bahloul Z, Makni H, Maalej A. Association study of human leukocyte antigen-DRB1 alleles with rheumatoid arthritis in south Tunisian patients. Clin Rheumatol 2012; 31:937-42. [PMID: 22349877 DOI: 10.1007/s10067-012-1954-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 01/18/2012] [Accepted: 01/31/2012] [Indexed: 11/28/2022]
Abstract
The aim of this study is to explore relationship between HLA-DRB1 alleles and the susceptibility and clinical features of rheumatoid arthritis (RA) in the south Tunisian population. We studied 142 RA patients and 123 controls matched for age, sex, and ethnicity. HLA-DRB1 genotyping and HLA-DRB1*04 subtypes were performed using polymerase chain reaction/sequence-specific primers. Association was assessed based on the χ (2) test and odds ratio with 95% confidence interval. For multiple comparisons, p value was corrected (p (c)) with Bonferroni test. Two alleles, HLA-DRB1*04 (p=0.045, p(c)=NS) and HLA-DRB1*10 (p=0.021, p(c)=NS), were found to have increased frequencies in RA patients compared to controls. In contrast HLA-DRB1*08 allele was found to have a decreased frequency in patients compared to controls (p=0.044, p(c)=NS). Molecular subtyping of the most prevalent allele (DRB1*04) revealed increased frequencies of HLA-DRB1*04:05 in patients compared to controls (p=0.013, p(c)=NS) whereas HLA-DRB1*04:02 showed a protective effect (p=0.005, p(c)=0.04). Moreover, stratified analyses indicated statistically significant associations between HLA-DRB1*04 allele and anti-cyclic peptides antibodies positivity (ACPA(+)) and rheumatoid factor positivity (RF(+); p(c)=0.03, for both subgroups), HLA-DRBI*10 and ACPA(+) and the presence of another autoimmune disease (p(c)=0.05 and p(c)=0.007, respectively), and HLA-DRB1*04:05 and RF(+) and erosion (p(c)=0.005 and p(c)=0.049; respectively). A significant decrease in the frequency of the DRB1*04:02 allele was observed in patients with ACPA(+) and RF(+) subgroups (p(c)=0.04 and p(c)=0.02, respectively). Our results showed that there was a trend of positive association of HLA-DRB1*04 and HLA-DRB1*10 with RA as such and significant associations with the disease severity in the south Tunisian population.
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Affiliation(s)
- Mariem Ben Hamad
- Laboratory of Human Molecular Genetics, Faculty of Medicine, Avenue Majida Boulila, Sfax, Tunisia.
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Bouzid D, Kammoun A, Amouri A, Mahfoudh N, Haddouk S, Tahri N, Makni H, Masmoudi H. Inflammatory bowel disease: susceptibility and disease heterogeneity revealed by human leukocyte antigen genotyping. Genet Test Mol Biomarkers 2012; 16:482-7. [PMID: 22224635 DOI: 10.1089/gtmb.2011.0132] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This study aimed to investigate the association between HLA DR/DQ and inflammatory bowel diseases (IBD) in Tunisian patients and to determine the relationship between HLA DR/DQ alleles with the clinical disease patterns. DNA typing of human leukocyte antigen (HLA) genes was performed in 70 ulcerative colitis (UC) patients, 40 Crohn's disease (CD) patients, and 123 healthy controls (HC) using a polymerase chain reaction sequence specific primer technique. Data were analyzed using Cochran-Mantel-Haenszel test and binary logistic regression. Compared with HC, IBD patients showed an increased frequency of the homozygous DRB1*07 genotype. This positive association was maintained when UC and CD were separately compared to HC. In UC patients, DQB1*03:02 was predictive of colonic extension whereas DRB1*13 and DQB1*03:01 were associated limited disease localization (left-sided colitis and proctitis). The DRB1*15 allele increased in patients with extraintestinal manifestations. In CD, female patients showed an increased frequency of DRB1*13, DRB1*15, and DQB1*06 alleles and DRB1*13-DQB1*06 haplotype, whereas a significant increase of DRB1*07, DQB1*02 alleles, and DRB1*07-DQB1*02 haplotype was noted in male patients. These results show a significant association of the homozygous HLA-DRB1*07 genotype with UC and CD and of several HLA DR/DQ alleles and haplotypes with the clinical phenotypes of these diseases in Tunisian patients. Because of limited statistical power, our study findings are subject to further investigation.
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Affiliation(s)
- Dorra Bouzid
- Immunology Department, Habib Bourguiba Hospital, Sfax, Tunisia.
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A'Hara SW, Amouroux P, Argo EE, Avand-Faghih A, Barat A, Barbieri L, Bert TM, Blatrix R, Blin A, Bouktila D, Broome A, Burban C, Capdevielle-Dulac C, Casse N, Chandra S, Cho KJ, Cottrell JE, Crawford CR, Davis MC, Delatte H, Desneux N, Djieto-Lordon C, Dubois MP, El-Mergawy RAAM, Gallardo-Escárate C, Garcia M, Gardiner MM, Guillemaud T, Haye PA, Hellemans B, Hinrichsen P, Jeon JH, Kerdelhué C, Kharrat I, Kim KH, Kim YY, Kwan YS, Labbe EM, LaHood E, Lee KM, Lee WO, Lee YH, Legoff I, Li H, Lin CP, Liu SS, Liu YG, Long D, Maes GE, Magnoux E, Mahanta PC, Makni H, Makni M, Malausa T, Matura R, McKey D, McMillen-Jackson AL, Méndez MA, Mezghani-Khemakhem M, Michel AP, Paul M, Muriel-Cunha J, Nibouche S, Normand F, Palkovacs EP, Pande V, Parmentier K, Peccoud J, Piatscheck F, Puchulutegui C, Ramos R, Ravest G, Richner H, Robbens J, Rochat D, Rousselet J, Saladin V, Sauve M, Schlei O, Schultz TF, Scobie AR, Segovia NI, Seyoum S, Silvain JF, Tabone E, Van Houdt JKJ, Vandamme SG, Volckaert FAM, Wenburg J, Willis TV, Won YJ, Ye NH, Zhang W, Zhang YX. Permanent genetic resources added to Molecular Ecology Resources Database 1 August 2011-30 September 2011. Mol Ecol Resour 2011; 12:185-9. [PMID: 22136175 DOI: 10.1111/j.1755-0998.2011.03088.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This article documents the addition of 299 microsatellite marker loci and nine pairs of single-nucleotide polymorphism (SNP) EPIC primers to the Molecular Ecology Resources (MER) Database. Loci were developed for the following species: Alosa pseudoharengus, Alosa aestivalis, Aphis spiraecola, Argopecten purpuratus, Coreoleuciscus splendidus, Garra gotyla, Hippodamia convergens, Linnaea borealis, Menippe mercenaria, Menippe adina, Parus major, Pinus densiflora, Portunus trituberculatus, Procontarinia mangiferae, Rhynchophorus ferrugineus, Schizothorax richardsonii, Scophthalmus rhombus, Tetraponera aethiops, Thaumetopoea pityocampa, Tuta absoluta and Ugni molinae. These loci were cross-tested on the following species: Barilius bendelisis, Chiromantes haematocheir, Eriocheir sinensis, Eucalyptus camaldulensis, Eucalyptus cladocalix, Eucalyptus globulus, Garra litaninsis vishwanath, Garra para lissorhynchus, Guindilla trinervis, Hemigrapsus sanguineus, Luma chequen. Guayaba, Myrceugenia colchagüensis, Myrceugenia correifolia, Myrceugenia exsucca, Parasesarma plicatum, Parus major, Portunus pelagicus, Psidium guayaba, Schizothorax richardsonii, Scophthalmus maximus, Tetraponera latifrons, Thaumetopoea bonjeani, Thaumetopoea ispartensis, Thaumetopoea libanotica, Thaumetopoea pinivora, Thaumetopoea pityocampa ena clade, Thaumetopoea solitaria, Thaumetopoea wilkinsoni and Tor putitora. This article also documents the addition of nine EPIC primer pairs for Euphaea decorata, Euphaea formosa, Euphaea ornata and Euphaea yayeyamana.
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Affiliation(s)
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- Forest Research, Northern Research Station, Roslin, Midlothian, Scotland EH25 9SY, UK
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Marrakchi S, Guigue P, Renshaw BR, Puel A, Pei XY, Fraitag S, Zribi J, Bal E, Cluzeau C, Chrabieh M, Towne JE, Douangpanya J, Pons C, Mansour S, Serre V, Makni H, Mahfoudh N, Fakhfakh F, Bodemer C, Feingold J, Hadj-Rabia S, Favre M, Genin E, Sahbatou M, Munnich A, Casanova JL, Sims JE, Turki H, Bachelez H, Smahi A. Interleukin-36-receptor antagonist deficiency and generalized pustular psoriasis. N Engl J Med 2011; 365:620-8. [PMID: 21848462 DOI: 10.1056/nejmoa1013068] [Citation(s) in RCA: 639] [Impact Index Per Article: 49.2] [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] [Indexed: 11/19/2022]
Abstract
BACKGROUND Generalized pustular psoriasis is a life-threatening disease of unknown cause. It is characterized by sudden, repeated episodes of high-grade fever, generalized rash, and disseminated pustules, with hyperleukocytosis and elevated serum levels of C-reactive protein, which may be associated with plaque-type psoriasis. METHODS We performed homozygosity mapping and direct sequencing in nine Tunisian multiplex families with autosomal recessive generalized pustular psoriasis. We assessed the effect of mutations on protein expression and conformation, stability, and function. RESULTS We identified significant linkage to an interval of 1.2 megabases on chromosome 2q13-q14.1 and a homozygous missense mutation in IL36RN, encoding an interleukin-36-receptor antagonist (interleukin-36Ra), an antiinflammatory cytokine. This mutation predicts the substitution of a proline residue for leucine at amino acid position 27 (L27P). Homology-based structural modeling of human interleukin-36Ra suggests that the proline at position 27 affects both the stability of interleukin-36Ra and its interaction with its receptor, interleukin-1 receptor-like 2 (interleukin-1 receptor-related protein 2). Biochemical analyses showed that the L27P variant was poorly expressed and less potent than the nonvariant interleukin-36Ra in inhibiting a cytokine-induced response in an interleukin-8 reporter assay, leading to enhanced production of inflammatory cytokines (interleukin-8 in particular) by keratinocytes from the patients. CONCLUSIONS Aberrant interleukin-36Ra structure and function lead to unregulated secretion of inflammatory cytokines and generalized pustular psoriasis. (Funded by Agence Nationale de la Recherche and Société Française de Dermatologie.).
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Affiliation(s)
- Slaheddine Marrakchi
- Department of Dermatology and the Laboratory of Immunology, Hedi Chaker Hospital, Sfax University, Sfax, Tunisia
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Kammoun K, Jarraya F, Bouhamed L, Kharrat M, Makni S, Hmida MB, Makni H, Kaddour N, Boudawara T, Bahloul Z, Hachicha J. Poor prognostic factors of lupus nephritis. Saudi J Kidney Dis Transpl 2011; 22:727-732. [PMID: 21743218] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
The occurrence of renal involvement during the clinical course of systemic lupus erythematous (SLE) is generally considered to be the most important factor influencing the prognosis in terms of morbidity and mortality. The factors influencing prognosis in lupus nephritis (LN) are variable in literature. Our aim was to determine predictive factors of poor prognosis in LN among our population. In this retrospective study, 82 cases of LN observed over 18 years were studied. There were 12 males and 70 females with a mean age of 26.9 ± 11 years. At presentation, the mean proteinuria was 3.9 ± 4 g/day; the nephrotic syndrome, hematuria, leukocyturia and renal failure were observed in 67.1%, 63.4%, 56.1% and 37.8% of cases, respectively. LN was of class I, II, III, IV and V in 4.9%, 13.4%, 23.2%, 50% and 8.5% of the cases, respectively. Fifteen patients developed end-stage renal failure and/or died. The presence of hypertension, renal failure, massive proteinuria and high activity index score of LN was associated with poor renal prognosis.
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Affiliation(s)
- Khawla Kammoun
- Department of Nephrology, Hedi Chaker Hospital, Sfax, Tunisia.
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Abbes S, Sellami H, Sellami A, Hadrich I, Amouri I, Mahfoudh N, Neji S, Makni F, Makni H, Ayadi A. Candida glabrata strain relatedness by new microsatellite markers. Eur J Clin Microbiol Infect Dis 2011; 31:83-91. [PMID: 21598073 DOI: 10.1007/s10096-011-1280-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [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: 10/12/2010] [Accepted: 04/18/2011] [Indexed: 11/25/2022]
Abstract
We investigated six microsatellite markers to type 85 unrelated and 118 related isolates of Candida glabrata from 36 patients. Three new markers were selected from the complete sequence of CBS138 and three previously described markers, RPM2, MTI and ERG3 were used. We found a genetic diversity of 0.949 by combining four of them. By applying the new microsatellite markers GLM4, GLM5 and GLM6 we were able to discriminate 29 isolates, originally identified by the more established markers, RPM2, MTI and ERG3. When epidemiologically closely related isolates from 36 patients were typed, 25 patients (72%) exhibited identical or highly related multilocus genotypes. We noted a microvariation in 4 of the patients. This minor change of one locus could be explained by a single step mutation. Since one of these patients had not received antifungal treatment; thus, the relationship between genome variation and antifungal therapy remains controversial. We can conclude from our analysis of these new microsatellite markers that they are highly selective and therefore should be considered as a useful typing system for differentiating related and unrelated isolates of C. glabrata, as well as being able to detect microvariation.
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Affiliation(s)
- S Abbes
- Department of Molecular Biology Parasitology and Mycology, Faculty of Medicine, Magida Boulila Street, Sfax, Tunisia
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Abbes S, Sellami H, Sellami A, Makni F, Mahfoudh N, Makni H, Khaled S, Ayadi A. Microsatellite analysis and susceptibility to FCZ of Candida glabrata invasive isolates in Sfax Hospital, Tunisia. Med Mycol 2010; 49:10-5. [PMID: 20586679 DOI: 10.3109/13693786.2010.493561] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We have noted that, during the last few years, there has been a redistribution of the most common Candida species with an increase in non-C. albicans Candida species, particularly Candida glabrata. In many countries, the high frequency of Candida glabrata shows the highest resistance rates. The main objective of this investigation was to analyze the genotypic variability of invasive C. glabrata isolates recovered over a period of six years and assess their in vitro susceptibility to fluconazole to determine the possible existence of relationships between genotype and susceptibility. We collected 50 invasive C. glabrata isolates (21.4%) from January 2001 to December 2007. The in vitro susceptibility profiles as determined by the E-test method showed that 8.3% of the isolates were resistant to fluconazole. The typing with three microsatellite markers RPM2, MTI and ERG3 demonstrated 12 multilocus genotypes distributed irregularly with a predominance of G1 (38%). A cluster (G9) was found among isolates collected in the same ward, at the same time period, suggesting cross transmission. Eleven of 13 patients who had previously been colonized by C. glabrata, were infected by their colonizing strains. However, we noted after prolonged treatment with fluconazole that there was an increase of the MIC for an isolate from one patient and in another patient, the selection of a more resistant variant. In our study, we didn't find an association between genotype and susceptibility to fluconazole. In conclusion, the predominance of some genotypes could be explained by nosocomial transmission or a selective ecological advantage rather than an emergence of a resistant isolate.
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Affiliation(s)
- S Abbes
- Laboratoire de Biologie Moléculaire Parasitaire et Fongique, Faculté de Médecine, Sfax, Tunisie
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Abida O, Masmoudi A, Rebaï A, Ben Ayed M, Mahfoudh N, Kallel-Sellami M, Makni S, Joly P, Gilbert D, Makni H, Tron F, Masmoudi H, Turki H. The familial feature of Tunisian endemic pemphigus foliaceus. Br J Dermatol 2009; 161:951-3. [DOI: 10.1111/j.1365-2133.2009.09386.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abida O, Zitouni M, Kallel-Sellami M, Mahfoudh N, Kammoun A, Ben Ayed M, Masmoudi A, Mokni M, Fezzaa B, Ben Osman A, Kammoun M, Turki H, Makni H, Gilbert D, Joly P, Tron F, Makni S, Masmoudi H. Tunisian endemic pemphigus foliaceus is associated with the HLA-DR3 gene: anti-desmoglein 1 antibody-positive healthy subjects bear protective alleles. Br J Dermatol 2009; 161:522-7. [DOI: 10.1111/j.1365-2133.2009.09207.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Siala M, Mahfoudh N, Fourati H, Gdoura R, Younes M, Kammoun A, Chour I, Meddeb N, Gaddour L, Hakim F, Baklouti S, Bargaoui N, Sellami S, Hammami A, Makni H. MHC class I and class II genes in Tunisian patients with reactive and undifferentiated arthritis. Clin Exp Rheumatol 2009; 27:208-213. [PMID: 19473559] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
OBJECTIVE To study HLA class I and class II association in Tunisian patients with reactive (ReA) and undifferentiated arthritis (UA). METHODS The study included 17 patients with ReA defined according to the European Spondylarthropathy Study Group criteria for spondylarthropathy (SpA), 11 patients classified as having undifferentiated arthritis and 100 unrelated healthy controls. HLA class I antigens were typed serologically and HLA class II alleles were genotyped molecularly by the polymerase chain reaction with sequence-specific primers technique. RESULTS There was a major difference between HLA alleles in ReA and UA patients when compared separately with controls. Increased frequencies of HLA-B27 (p=7.76 10-12, OR=59.30), HLA-B51 (p=0.015, OR=4.91) and HLA-DRB1*04 (p=0.033, OR=2.90) alleles were found in patients with ReA but not in patients with UA. HLA-B27 was not expressed totally in our cohort of UA patients. A significant increase of HLA-B15 (p=0.002, OR=18.40) and a moderate increase of HLA-B7 (p=0.043, OR=5.15) was found in patients with UA, but not in patients with ReA. In the B27 negative patients, HLA-DRB1*04 association with ReA was found independently of B27. CONCLUSION Our data confirmed a significant association of HLA-B27 with ReA in the Tunisian population. Our results also suggested that some of the additional HLA antigens were associated with ReA including HLA-B51 and HLA-DRB1*04 alleles. UA seemed to have a genetic background different from ReA in Tunisian patients.
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Affiliation(s)
- M Siala
- Laboratoire de recherche "Micro-organismes et Pathologie Humaine", EPS Habib Bourguiba de Sfax, Tunisia
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Siala M, Mahfoudh N, Gdoura R, Younes M, Fourati H, Kammoun A, Chour I, Meddeb N, Gaddour L, Hakim F, Baklouti S, Bargaoui N, Sellami S, Hammami A, Makni H. Distribution of HLA-B27 and its alleles in patients with reactive arthritis and with ankylosing spondylitis in Tunisia. Rheumatol Int 2009; 29:1193-6. [DOI: 10.1007/s00296-009-0840-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2008] [Accepted: 01/05/2009] [Indexed: 10/21/2022]
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Lahiani NM, Kamoun A, Bellaaj H, Elloumi M, Souissi T, Makni H. [Molecular analysis of crossing-over in the CMH in two Tunisian families with aplastic bone marrow]. ACTA ACUST UNITED AC 2008; 57:383-7. [PMID: 18178036 DOI: 10.1016/j.patbio.2007.09.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Accepted: 09/19/2007] [Indexed: 11/29/2022]
Abstract
In order to select compatible human leucocytes antigens (HLA) donors for bone marrow graft, all the members of 76 families were typed by serology for HLA class I (A and B locus) and class II (DR, DQ locus) by polymerase chain-reaction-sequence-specific primes (PCR-SSP). The HLA typing interpretation revealed the existence of crossing-over in major histocompatibility (CMH) regions for two families, AB and AT, with aplastic bone marrow. The study of crossing-over site has needed the genotyping of seven short tandem repeat (STR) markers located on the short arm of chromosome 6 (D6S291, D6S273, TNFa, C1.2.C, C3.2.11, D6S265, D6S276), using ABI Prism 310 sequencer. HLA and STR Haplotypic analysis enabled us to confirm the crossing-over between locus B and DR in AB family and between locus A and B in AT family. Based in this study, we recommend to be careful in the interpretation of the results of HLA typing between donors and recipients of bone marrow. Complementary investigations should be accomplished for studying genetic abnormalities, which would be involved in this pathology.
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Charfi S, Krichen-Makni S, Yaich S, Makni H, Khabir A, Amouri A, Charfeddine K, Hachicha J, Sellami-Boudawara T. Successful treatment of post-renal transplant gastric and pulmonary Kaposi's sarcoma with conversion to rapamycin treatment. Saudi J Kidney Dis Transpl 2007; 18:617-620. [PMID: 17951954] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
The incidence of Kaposi's sarcoma (KS) is higher in organ transplant recipients. The lesions are mainly cutaneous and isolated visceral involvement is rare. We herewith report a 38-year-old male patient, who underwent a cadaveric donor renal transplantation for chronic interstitial nephropathy. His immunosuppression protocol consisted of corticosteroids, tacrolimus and mycophenolate mofetil. Twenty-five months later, he presented with diarrhea and epigastric pain. An upper gastrointestinal endoscopy revealed an ulcer in the body of the stomach. Histological examination coupled with immunohistochemistry was suggestive of KS. Detailed examination did not show any skin lesions. Computed tomography of the chest revealed multiple bilateral lung micronodules. The patient tested positive for anti-Herpes Human Virus (HHV8) antibodies. Tacrolimus and mycophenolate mofetil were withdrawn and rapamycin was introduced. This resulted in a regression of both stomach and pulmonary KS. One-year later, the patient developed an episode of acute rejection, which was successfully treated with bolus steroids. Our case suggests that rapamycin-based immunosuppression offers a promising approach to the management of post-transplant KS, particularly with visceral involvement.
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Affiliation(s)
- Slim Charfi
- Department of Pathology, University Hospital of SFAX, Tunisia.
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Affes H, Mahfoudh N, Kammoun A, Masmoudi A, Marrekchi S, Turki H, Makni H. HLA- A, B, DR and DQ alleles study in Tunisian patients with atopic dermatitis. Tunis Med 2007; 85:834-838. [PMID: 18236804] [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: 05/25/2023]
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin disease resulting from the interaction between envirommental and genetic factors. Many genes are involved in the etiopathology of AD, such as HLA genes. OBJECTIVES Study the association between HLA-A, B, DR and DQ genes and the AD. METHODS HLA A and B genotyping were practised for 53 atopic dermatitis patients and 76 healthy controls using the microlymphotoxicity complement dependent technique, while HLA DR and DQ genetyping were practised for only 20 patients with AD and all the controls by PCR-SSP method. RESULTS Allelic frequency of HLA A32 was significantly increased in healthy individuals compared to patients affected with AD (p = 0.02, RR = 0.24). HLA-B, DR and DQ showed no differences in distrubition between patients and controls. CONCLUSION Our study suggested that HLA-A32 could be a protective marker against atopic dermatitis for Tunisian patients, in contrast to HLA-B, DR and DQ alleles which seemed to have no importance in AD pathogenis.
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Affiliation(s)
- Hanene Affes
- Service de laboratoire, CHU Hedi chaker, Sfax, Tunisia
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Charfi S, Khabir A, Ayadi L, Mseddi M, Makni H, Gorbel A, Daoud J, Frikha M, Jlidi R, Busson P, Boudawara TS. Expression de c-kit dans les carcinomes nasopharyngés nord africains, corrélations avec l'âge et LMP1. Cancer Radiother 2007; 11:247-51. [PMID: 17689127 DOI: 10.1016/j.canrad.2007.06.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 04/02/2007] [Revised: 06/21/2007] [Accepted: 06/29/2007] [Indexed: 11/26/2022]
Abstract
PURPOSE To determine the level and prognostic significance of c-kit expression in the two age groups of North African nasopharyngeal carcinomas. PATIENTS AND METHODS A retrospective study of 99 NPC specimens from Tunisian patients was investigated by immunohistochemistry. Immunohistochemical data were correlated with Epstein-Barr virus LMP1 expression and pathological, clinical and survival parameters. RESULTS c-kit was detected in 79% of the cases for patients under 30 years of age (juvenile form) but in only 56% of specimens in patients over 30 years (P=0.039) and was significantly over-expressed for patients with lymph node involvement (P=0.015). LMP1 score was 5.78 (+/-1.84) for c-kit negative tumors compared to 8,23 (+/-2.39) for c-kit positive tumors (P=0.002). Multivariate analysis including age, lymph nodes involvement and LMP1 expression as co-variables, showed that only age (P=0.027) and LMP1 expression (P=0.005) were significantly correlated to the c-kit expression. CONCLUSION c-kit is highly expressed in the juvenile form of North African nasopharyngeal carcinomas. There is a significant association between LMP1 and c-kit expression. The contrasted levels of C-kit expression in the two age groups strengthen the hypothesis that these clinical forms result from distinct oncogenic mechanisms.
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Affiliation(s)
- S Charfi
- Laboratoire d'anatomie et de cytologie pathologiques, CHU Habib-Bourguiba, Sfax, Tunisie
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Ayadi I, Mahfoudh-Lahiani N, Makni H, Ammar-Keskes L, Rebaï A. Combining Autosomal and Y-Chromosomal Short Tandem Repeat Data in Paternity Testing with Male Child: Methods and Application. J Forensic Sci 2007; 52:1068-72. [PMID: 17645485 DOI: 10.1111/j.1556-4029.2007.00513.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 11/30/2022]
Abstract
Paternity testing is being increasingly requested with the aim of challenging presumptive fatherhood. The ability to establish the biological father is usually based on the genotyping of autosomal short tandem repeat (STR) in alleged father, mother and child, but the use of Y-chromosomal STR has gained interest in the last few years. In this work, we propose a new probabilistic approach that combines autosomal and Y-chromosomal STR data in paternity testing with father/son pairs taking into account mutation events. We also suggest a new two-stage approach where we first type Y-STRs and possibly autosomal STR for the putative father and son, conditional on Y-STR results. We applied this approach to 22 cases. Our results show that Y-STRs can identify nonpaternity cases with high accuracy but need to be validated with autosomal STR to establish paternity. Moreover, the two-stage approach is less costly than the standard approach and is very useful in motherless cases.
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Affiliation(s)
- Imen Ayadi
- Bioinformatics Unit, Centre de Biotechnologie de Sfax, PO Box K, 3038 Sfax, Tunisia
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Masmoudi A, Cheikhrouhou H, Frigui F, Abida O, Ben Ayed M, Lehyani N, Amouri M, Masmoudi H, Makni H, Zahaf A, Turki H. Dermatoses bulleuses auto-immunes multiples dans une même famille. Ann Dermatol Venereol 2007; 134:572-3. [PMID: 17657188 DOI: 10.1016/s0151-9638(07)89273-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Laadhar L, Gassara A, Mahfoudh N, Ben Hadj hmida Y, Kamoun T, Ben Ayed M, Rekik N, Mahfoudh A, Rebai A, Makni H, Abid M, Hachicha M, Masmoudi H. [Susceptibility markers in Tunisian first-degree relatives of patients with type 1 diabetes]. Ann Endocrinol (Paris) 2007; 68:181-5. [PMID: 17512892 DOI: 10.1016/j.ando.2007.01.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2006] [Revised: 01/04/2007] [Accepted: 01/05/2007] [Indexed: 10/22/2022]
Abstract
To identify the profile of anti-pancreas autoantibodies and elucidate the HLA DRB1, DQB1 polymorphism in Tunisian first-degree relatives of patients with type 1 diabetes, we recruited 96 relatives from 21 families with at least one diabetic child. Islet cell antibodies (ICA) were detected by immunofluorescence on monkey pancreas; glutamate decarboxylase (GADA), IA2 (IA2-A) and insulin (IAA) antibodies were measured by RIA. HLA class II DRB1 and DQB1 alleles were typed by PCR-SSP. ICA, GADA, IA2-A and IAA were found in respectively 11.5, 4.2, 5.2 and 8.3% of relatives. Twenty-two out of 96 had at least one antibody and 20 out of these 22 had a susceptibility allele (DRB1*03, DRB1*04, DQB1*02 or DQB1*0302) with or without protective allele (DRB1*11, DRB1*13, DRB1*15 or DQB1*06). All of the 5 relatives having 2 autoantibodies or more carried the DRB1*04-DQB1*0302 susceptible haplotype. In conclusion, this observational study confirms in a Tunisian population known epidemiological data and demonstrates the usefulness of follow-up to determine the predictive value of studied markers.
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Affiliation(s)
- L Laadhar
- Laboratoire d'immunologie, EPS Habib-Bourguiba, Sfax, Tunisie
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Mahfoudh-Lahiani N, Rebaï A, Makni H. Data for 10 autosomal STR markers in South Tunisian population. Forensic Sci Int 2006; 164:254-6. [PMID: 16337104 DOI: 10.1016/j.forsciint.2005.10.018] [Citation(s) in RCA: 5] [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: 05/18/2005] [Revised: 10/24/2005] [Accepted: 10/24/2005] [Indexed: 11/18/2022]
Abstract
Allele frequencies, together with some parameters of forensic interest for 10 STRs (D3S1358, vWA, D16S539, D2S1338, D8S1179, D21S11, D18S51, D19S433, TH01 and FGA) were estimated from 201 unrelated individuals originating from southern Tunisia. Significant deviation from Hardy-Weinberg equilibrium was observed for only one marker. Comparative analyses between our population data and other populations showed that only markers D3S158, vWA and FGA were homogenous among populations. The combination of these 10 STR loci provide a powerful tool for forensic identification in Tunisian population.
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Makni H, Bettaieb F, Dhaouadi H, M'Henni F, Bakhrouf A. The anaerobic treatment of sewage and granule formation in upflow anaerobic sludge blanket reactor. Environ Technol 2006; 27:1031-6. [PMID: 17067129 DOI: 10.1080/09593332708618715] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The granulation process was examined using synthetic wastewater containing glucose in a 1 liter laboratory upflow anaerobic sludge blanket (UASB) reactor. The anaerobic biotransformation of glucose was investigated during the granulation process. Anaerobic unacclimated sludge and glucose were used as seed and primary substrate, respectively. Massive initial granules were developed after three months of start-up. The effect of operational parameters such as influent glucose concentrations, pH, Volatile Fatty Acids (VFA) were also considered during granulation. The presence of a large concentration of sulphate in the sludge of a mesophilic (37 degrees C+/-1 degrees C) UASB reactor treating sewage resulted in severe process disturbance, with a complete inhibition of the propionate-degrading ability of the sludge. Severe inhibition of acetate removal was also observed, with concentrations of propionic acid and acetic acid in the reactor effluent of 1.72% and 18.88%, respectively. Hydrogen sulfide (H2S) is formed from the anaerobic decomposition of organic matter containing sulfate by sulfate-reducing bacteria. This gas is toxic at rate exceeding 2% tolerable by a reactor. The result shows the rate of hydrogen sulfide production was 3.8 %.
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Affiliation(s)
- H Makni
- Laboratoire d'Analyse et de Contrôle des Polluants Chimiques et Microbiologiques de l'Environnement, Faculté de Pharmacie, Rue Avicenne, Monastir, Tunisia
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Masmoudi A, Hadj Taieb H, Ben Ayed M, Abida O, Makni H, Turki H, Masmoudi H, Zahaf A. Pemphigus érythémateux tunisien associé à un psoriasis chez deux sœurs. Ann Dermatol Venereol 2006; 133:184-5. [PMID: 16508610 DOI: 10.1016/s0151-9638(06)77553-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bouchlaka C, Othman TB, Aissaoui L, Elloumi H, Elloumi M, Amouri A, Abid HB, Hadiji S, Slama H, Makni H, Saad A, Abdelhak S, Dellagi K. Fanconi anemia: contribution of molecular analyses to the identification of bone marrow graft donors and the study of chimerism in grafted patients. Genet Test 2005; 8:268-75. [PMID: 15727250 DOI: 10.1089/gte.2004.8.268] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We report on the effectiveness of molecular studies regarding Fanconi anemia (FA) for a better selection of bone marrow graft donors and for post-transplant follow up. Ten unrelated FA patients and their families were analyzed by microsatellite markers. In 9 cases, the cytogenetic investigation of potential human leukocyte antigen (HLA)-identical related donors was normal, and the molecular analyses confirmed that they were also either normal or heterozygous carriers. For 1 patient, cytogenetic analysis of an HLA-identical sibling donor yielded ambiguous results with a relatively high number of chromosomal breakages using cross-linking agents. However, genotyping of this potential donor demonstrated his heterozygous state. Nine patients have received allogeneic bone marrow transplantation from HLA-matched related donors. Microsatellite analysis showed complete chimerism (CC) in all cases. The median follow up was 54 months (range 8-144 months). One patient out of 9 with CC rejected her graft without prior detection of a transitional mixed chimerism. Among these patients, 1 died 25 months after the transplantation of a chronic graft-versus-host-disease (GVHD). We conclude that, when the cytogenetic studies are not conclusive, molecular analyses are crucial to distinguish heterozygous carriers from asymptomatic FA Tunisian patients. Molecular analyses also allowed the evaluation of hematopoietic chimerism after allogeneic bone marrow transplantation and might be of value to identify patients with a high risk for graft rejection.
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Affiliation(s)
- Chiraz Bouchlaka
- Laboratoire d'Immunologie, Vaccinologie et Génétique Moléculaire, Institut Pasteur de Tunis, Tunisia
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Bougacha-Elleuch N, Rebai A, Mnif M, Makni H, Bellassouad M, Jouida J, Abid M, Hammadi A. Analysis of MHC genes in a Tunisian isolate with autoimmune thyroid diseases: implication of TNF -308 gene polymorphism. J Autoimmun 2005; 23:75-80. [PMID: 15236755 DOI: 10.1016/j.jaut.2004.03.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [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: 12/02/2003] [Revised: 03/11/2004] [Accepted: 03/26/2004] [Indexed: 01/19/2023]
Abstract
Autoimmune thyroid diseases (AITDs), which include Hashimoto thyroiditis (HT), Graves' disease (GD) and primary idiopathic myxoedema (PIM), are recognized as multifactorial diseases. In this study, we have examined single and haplotypic genetic variation across the major histocompatibility complex (MHC) in a Tunisian isolate with a high prevalence of AITDs (62 patients: 32 with GD, 9 with HT and 21 with PIM). Genotyping was performed for HLA class I and II alleles as well as polymorphisms within tumor necrosis factor (TNF), lymphotoxin alpha (TLalpha) and heat shock protein (HSP70-02 and HSP70-hom) genes. Our results showed association of HLA-A2-B50-TNF 2 haplotype with AITDs (p = 0.045). Linkage analysis using Simwalk2 program has shown significant result with TNF -308 gene polymorphism (p = 0.03). The FBAT has given evidence for genetic association with TNF -308 and HLA-DR gene polymorphisms. TNF 2 allele was associated with GD (p = 0.0011), whereas TNF 1, HLA-DR11 and DR12 (p = 0.0039, p = 0.00089 and p = 0.0056, respectively) were rather implicated in HT pathogenesis. Results found by TDT-STDT have confirmed the involvement of the TNF -308 gene polymorphism in AITD pathogenesis (p < 10(-9)).
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Affiliation(s)
- Noura Bougacha-Elleuch
- Laboratoire de Génétique Moléculaire Humaine Faculté de Médecine, Avenue Majida Boulila, 3029 Sfax, Tunisia
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Mokaddem A, Khouadja MA, Dargouth B, Sdiri W, Joulak A, Saidi I, Selmi K, Makni H, Boujnah MR. [Atrial fibrillation and anticoagulant therapy]. Tunis Med 2005; 83 Suppl 2:1-5. [PMID: 15991613] [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] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Affiliation(s)
- A Mokaddem
- Service de cardiologie, Hôpital Mongi Slim, La Marsa
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Abstract
Genotypes of 103 short tandem repeat (STR) markers distributed at an average of 40 cM intervals throughout the genome were determined for 40 individuals from the village of BirEl Hfai (BEH). This village of approximately 31,000 individuals is localized in the south-west of Tunisia. The allele frequency distributions in BEH were compared with those obtained for individuals in the CEPH (Centre d'Etude du Polymorphisme Humain) data using a Kolmogorov-Smirnov two-sample test. Fourteen out of the 103 markers (13.2%) showed significant differences (P<0.05) in distribution between the two populations. Population heterogeneity in BEH was indicated by an excess of observed homozygosity deviations from Hardy-Weinberg equilibrium at three loci (P<0.0005). No evidence for genotypic disequilibrium was found for any of the marker pairs. This demonstrated that in spite of a high inbreeding level in the population, few markers showed evidence for a different pattern of allelic distribution compared to CEPH.
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Affiliation(s)
- Abdellatif Maalej
- Laboratoire de Génétique Moléculaire Humaine, Faculté de Médecine, Avenue Majida Boulila, 3029 Sfax, Tunisia
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