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Rezk NA, Lashin MB, Sabbah NA. MiRNA 34-a regulate SIRT-1 and Foxo-1 expression in endometriosis. Noncoding RNA Res 2021; 6:35-41. [PMID: 33718673 PMCID: PMC7905260 DOI: 10.1016/j.ncrna.2021.02.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/27/2021] [Accepted: 02/07/2021] [Indexed: 01/24/2023] Open
Abstract
PURPOSE The role of the Sirutin 1 (SIRT1) and MicroRNA-34 a (miR-34a) in endometriosis and the extent to which the miR-34a/SIRT1/p53 signaling pathway is involved in its pathogenesis is unclear, so we aimed to investigate the expression of miRNA 34-a, SIRT1, Forkhead boxO (FoxO-1), p53 and other apoptotic markers in endometrial tissue of women with endometriosis in order to better understand their role and the mechanisms of their actions in the pathogenesis of such disease and if it is related to apoptosis or not. METHODS Ectopic and eutopic endometriotic tissues were collected from seventy women with endometriosis while normal endometrial tissues were obtained from 40 fertile women without endometriosis and then gene expression of SIRT-1, miR-34a,p53, Bax, Bcl-2, Bcl-xL and FoxO-1 were measured using RT-PCR. RESULTS We detected that SIRT-1 and Bcl-xL genes expressions was significantly up-regulated while miRNA34-a,p53, Bax, Bcl-2 and FoxO-1 were down-regulated in endometrial tissue of endometriotic patients compared to that of those without endometriosis. There was an inverse relationship between SIRT-1a, Bcl-xL genes expressions and miR-34a, p53, Bax, Bcl-2 expressions as well as FoxO-1 expression. These results imply that miR-34a might regulate p53 through SIRT-1 and subsequently FoxO-1 expression in endometriotic tissue, and so it can contribute to the pathogenesis of endometriosis by decreasing the naturally occurring apoptosis in endometrium. CONCLUSION This study may provide a potential biomarker for endometriosis therapeutics. Identification of target genes downstream of these transcriptional factors would allow better understanding of their respective roles in the pathogenesis of endometriosis.
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Affiliation(s)
- Noha A. Rezk
- Medical Biochemistry Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamad Bakry Lashin
- Gynecology & Obstetrics Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
| | - Norhan A. Sabbah
- Medical Biochemistry Department, Faculty of Human Medicine, Zagazig University, Zagazig, Egypt
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Raafat N, Zaher TI, Etewa RL, El-gerby KM, Rezk NA. Heat shock protein-27 and MiR-17-5p are novel diagnostic and prognostic biomarkers for hepatocellular carcinoma in Egyptian patients. Gene Reports 2020. [DOI: 10.1016/j.genrep.2020.100822] [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: 11/28/2022]
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Sabbah NA, Rezk NA, Saad MS. Relationship Between Heat Shock Protein Expression and Obesity With and Without Metabolic Syndrome. Genet Test Mol Biomarkers 2019; 23:737-743. [DOI: 10.1089/gtmb.2019.0062] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Norhan Abdalla Sabbah
- Department of Medical Biochemistry, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Noha A. Rezk
- Department of Medical Biochemistry, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed S.S. Saad
- Department of Internal Medicine, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Pasha HA, Rezk NA, Riad MA. Circulating Cell Free Nuclear DNA, Mitochondrial DNA and Global DNA Methylation: Potential Noninvasive Biomarkers for Breast Cancer Diagnosis. Cancer Invest 2019; 37:432-439. [PMID: 31516038 DOI: 10.1080/07357907.2019.1663864] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Eighty seven women with benign breast lesion, 120 patients with breast cancer (BC) and one hundred controls were included in the study. Quantification of mtDNA and nDNA was done by qPCR. Global DNA methylation was measured using ELISA. Circulating cell-free nDNA and mtDNA were significantly elevated in BC and benign breast lesions patients. Global methylation was significantly low in BC patients. Combining the studied parameters in one panel, nDNA/mtDNA/hypomethylation, improved their sensitivity in detecting BC to reach 92.5%. Circulating cell-free nDNA, mtDNA and global DNA hypomethylation can be used as diagnostic and prognostic markers for BC.
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Affiliation(s)
- Heba A Pasha
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University , Zagazig , Egypt
| | - Noha A Rezk
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University , Zagazig , Egypt
| | - Mohamed A Riad
- Surgery Department, Faculty of Medicine, Zagazig University , Zagazig , Egypt
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Ahmad MM, Rezk NA, Fawzy A, Sabry M. Protective effects of curcumin and silymarin against paracetamol induced hepatotoxicity in adult male albino rats. Gene 2019; 712:143966. [PMID: 31279711 DOI: 10.1016/j.gene.2019.143966] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [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: 12/29/2018] [Revised: 06/17/2019] [Accepted: 07/03/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Acute paracetamol (PCM) toxicity is a clinical problem; can result in a serious liver injury that finally may progress to acute liver failure. Curcumin (CUR) is a prevalent natural compound that can maintain prooxidant/antioxidant balance and thus can help in liver protection; also, Silymarin (SL) is a traditional antioxidant herb, used to treat liver disorders through scavenging free radicals. This study aimed to illustrate the histological, biochemical and molecular changes induced by acute PCM overdose on rats' liver to elucidate the effectiveness of CUR compared to SL in alleviating such changes. MATERIALS AND METHODS Male Wister Albino rats were divided into 6 groups each comprising 23 rats: control group, curcumin (CUR) treated group received (100 mg CUR/ kg), silymarin treated group received (100 mg SL/kg) for 7 successive days. Paracetamol (PCM) exposed group administered a single dose of PCM (200 mg/kg orally on 8th day). PCM + CUR group and PCM + SL group pretreated with CUR and SL respectively for 7 days then received single PCM dose (200 mg/kg) on the 8th day. Blood and liver tissues were collected for biochemical, histopathological and immunohistochemical analyses using anti-p53 antibody. In addition, real time polymerase chain reaction (RT- PCR) was used to measure Bax, bcl2 and Peroxisome proliferator-activated receptor-gamma (PPAR γ) mRNA expression levels. RESULTS In the paracetamol overdose group, the liver architecture showed necrotic changes, hydropic degeneration, congestion and dilatation of central veins. This hepatocellular damage was confirmed by a significant increase of AST, ALT levels and by an apparent increase in the number of p53 stained cells. PCM toxicity showed significant elevation of total oxidant status (TOS), oxidant status index (OSI) and decreased total antioxidant capacity (TAC) compared to controls (p < 0.001). Gene expression analysis showed that PCM caused an elevation of bcl2 and a reduction of both Bax and PPARγ mRNA expression. The histological alternation in the liver architecture was markedly improved in (PCM + CUR) group compared to (PCM+ SL) group, with an obvious decrease in the number of P53 stained cells. CUR pretreatment inhibited the elevation of TOS and OSI as well as the reduction of TAC caused by PCM toxicity compared to (PCM + SL) group. CONCLUSION Both SL and CUR pretreatment prevented the toxic effects of PCM, but CUR is more effective than SL in ameliorating acute PCM induced hepatotoxicity.
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Affiliation(s)
- Marwa M Ahmad
- Anatomy Department, Faculty of Medicine, Zagazig University, Egypt
| | - Noha A Rezk
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Egypt.
| | - Amal Fawzy
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Egypt
| | - Mohamed Sabry
- Anatomy Department, Faculty of Medicine, Zagazig University, Egypt
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Rezk NA, Mohamed RH, Alnemr AA, Harira M. Promoter Methylation of RASSF1A Gene in Egyptian Patients with Ovarian Cancer. Appl Biochem Biotechnol 2017; 185:153-162. [PMID: 29098560 DOI: 10.1007/s12010-017-2648-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 10/26/2017] [Indexed: 12/14/2022]
Abstract
Ovarian malignancy is diagnosed in nearly a fourth of a million women internationally every year. Methylation of RASSF1A tumor suppressor gene prompts its inactivation in diseases. In this study, the RASSF1A promoter methylation was detected by methylated-specific PCR and investigated serum RASSF1A protein level through enzyme-linked immunosorbant assay in 160 Egyptian patients with ovarian cancer and 160 healthy controls. The present work proved that there was a higher frequency of RASSF1A methylation and a decrease in its serum level in patients with ovarian cancer compared to controls as well as in the high-grade tumor patients compared to low grade ones and also in advanced ovarian tumor stage compared to early stages. Our study exhibited that RASSF1A promoter hypermethylation and its protein levels may be a reliable and sensitive tool for diagnosing and monitoring of ovarian malignancy patients.
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Affiliation(s)
- Noha A Rezk
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| | - Rasha H Mohamed
- Biochemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Amr AbdAlmohsen Alnemr
- Obstetrics and Gynecology Departments, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mervat Harira
- Obstetrics and Gynecology Departments, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Karam RA, Rezk NA, Amer MM, Fathy HA. Immune response genes receptors expression and polymorphisms in relation to multiple sclerosis susceptibility and response to INF-βtherapy. IUBMB Life 2016; 68:727-34. [DOI: 10.1002/iub.1530] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 06/07/2016] [Indexed: 12/27/2022]
Affiliation(s)
- Rehab A. Karam
- Biochemistry Department, Faculty of Medicine; Zagazig University; Zagazig Egypt
| | - Noha A. Rezk
- Biochemistry Department, Faculty of Medicine; Zagazig University; Zagazig Egypt
| | - Mona M. Amer
- Neurology Department, Faculty of Medicine; Zagazig University; Zagazig Egypt
| | - Hala A. Fathy
- Neurology Department, Faculty of Medicine; Zagazig University; Zagazig Egypt
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Zidan HE, Rezk NA, Fouda SM, Mattout HK. Association of Insulin-Like Growth Factor-1 Gene Polymorphisms with Different Types of Myopia in Egyptian Patients. Genet Test Mol Biomarkers 2016; 20:291-6. [PMID: 27167306 DOI: 10.1089/gtmb.2015.0280] [Citation(s) in RCA: 9] [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: 11/13/2022] Open
Abstract
AIMS To investigate the effect of the insulin-like growth factor-1 (IGF-1) gene's rs6214 and rs5742632 polymorphisms on IGF-1 expression levels and their association with different types of myopia in Egyptian patients. METHODS A case-control format was used that included 272 patients with myopia and 136 controls. The IGF-1 gene rs6214 and rs5742632 polymorphisms were genotyped using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analyses. IGF-1 levels were measured by an enzyme-linked immunosorbent assay. RESULTS In patients with high-grade myopia, the frequencies of the IGF-1 rs6214 GA and AA genotypes, and the A allele were significantly increased compared to the control group: 41.9% vs. 33.8%, 17.7% vs. 8.9%, and 38.9% vs. 25.7%, respectively. Subjects with the GA and AA genotypes and carriers of A allele were significantly more likely to have high-grade myopia: odds ratios (OR) = 1.75, 95% confidence interval (CI) = 1.03-2.9, and p = 0.03; OR = 2.8, 95% CI = 1.3-6.0, and p = 0.003; and OR = 1.8, 95% CI = 1.25-2.61, and p = 0.001, respectively. A nonsignificant association of the IGF-1 gene rs5742632 polymorphism with the two myopia groups was also observed. The IGF-1 levels were significantly increased in patients with high-grade myopia and simple myopia compared to the control group (p < 0.05). In addition, our results showed a nonsignificant association of the IGF-1 (rs6214-rs5742632) haplotype with either simple myopia or high-grade myopia. CONCLUSIONS We found a significant association of the IGF-1 gene rs6214 polymorphism in Egyptian patients with simple myopia and high-grade myopia. IGF-1 levels were significantly increased in relation to the IGF-1 rs6214 genotypes, while a nonsignificant association was found between IGF-1 level and the IGF-1 (rs5742632) genotypes.
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Affiliation(s)
- Haidy E Zidan
- 1 Medical Biochemistry Department, Faculty of Medicine, Zagazig University , Zagazig, Egypt
| | - Noha A Rezk
- 1 Medical Biochemistry Department, Faculty of Medicine, Zagazig University , Zagazig, Egypt
| | - Sameh M Fouda
- 2 Department of Ophthalmology, Faculty of Medicine, Zagazig University , Zagazig, Egypt
| | - Hala K Mattout
- 2 Department of Ophthalmology, Faculty of Medicine, Zagazig University , Zagazig, Egypt
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Rezk NA, Sabbah NA, Saad MSS. Role of MicroRNA 126 in screening, diagnosis, and prognosis of diabetic patients in Egypt. IUBMB Life 2016; 68:452-8. [PMID: 27118517 DOI: 10.1002/iub.1502] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [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: 03/10/2016] [Accepted: 03/30/2016] [Indexed: 01/17/2023]
Abstract
MicroRNAs (miRNAs), family of non-coding small RNAs, play a vital role in the regulation of blood glucose level. We aimed to investigate the relation of serum miRNA-126 expression with impaired glucose tolerance as well as type 2 diabetes mellitus (T2DM) patients with and without complications. One hundred healthy controls, eighty-six patients with IGT, and one hundred patients with T2DM were recruited in this study. Serum miRNA-126 expression was assessed by quantitative real-time polymerase chain reaction. We found a significant decrease of serum miRNA-126 expression between IGT patients as well as diabetic patients when both compared with controls and between diabetic patients compared to IGT patients. A significant decrease of serum miRNA-126 expression was detected in diabetic patients with complications compared to those without evident complications especially those with diabetic macrovascular complications and diabetic retinopathy. Serum microRNA-126 expression could be a good marker for diagnosis of IGT and T2DM as well as for monitoring the outcomes of such disease. © 2016 IUBMB Life, 68(6):452-458, 2016.
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Affiliation(s)
- Noha A Rezk
- Faculty of Medicine, Medical Biochemistry Department, Zagazig University, Egypt
| | - Norhan A Sabbah
- Faculty of Medicine, Medical Biochemistry Department, Zagazig University, Egypt
| | - Mohamed S S Saad
- Faculty of Medicine, Internal Medicine Department, Zagazig University, Egypt
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Zidan HE, Rezk NA, Alnemr AAA, Abd el Ghany AM. COX-2 gene promoter DNA methylation status in eutopic and ectopic endometrium of Egyptian women with endometriosis. J Reprod Immunol 2015; 112:63-7. [DOI: 10.1016/j.jri.2015.06.093] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 06/03/2015] [Accepted: 06/25/2015] [Indexed: 11/29/2022]
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Rezk NA, Zidan HE, Riad M, Mansy W, Mohamad SA. Metallothionein 2A expression and its relation to different clinical stages and grades of breast cancer in Egyptian patients. Gene 2015; 571:17-22. [PMID: 26093198 DOI: 10.1016/j.gene.2015.06.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 05/19/2015] [Accepted: 06/15/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To assess the relation of blood MT-2A expression, serum zinc, copper, Cu/Zn ratio, total antioxidant status (TAS), total oxidant status (TOS) and oxidant status index (OSI) with benign and malignant breast tumors, also, their relation to different clinical stages and grades of breast cancer. MATERIAL AND METHODS Unrelated 199 female patients with breast tumor and 120 healthy controls were enrolled in this study. Metallothionein-2A (MT-2A) expression was assessed by quantitative real-time polymerase chain reaction (RT-PCR). Serum MT-2A levels were measured by ELISA. Serum copper (Cu) and Zinc (Zn) concentrations were determined by atomic absorption spectrophotometry. Serum TOS and TAS levels were measured colorimetrically. RESULTS Our study demonstrated that blood metallothionein-2A mRNA level, serum MT-2A, copper, Cu/Zn ratio, total oxidant status and oxidant status index were significantly increased, while, serum zinc level and total antioxidant status were significantly decreased in patients with breast cancer and benign breast disease as compared to controls and in breast cancer group as compared to the benign one. CONCLUSIONS Blood metallothionein-2A expression and serum MT-2A levels could be important prognostic indices of less differentiated, more aggressive breast cancer phenotype. Disturbance of copper, zinc and oxidative stress status might contribute to the pathogenesis of breast tumor and could be useful biomarkers for diagnosing and monitoring such disease.
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Affiliation(s)
- Noha A Rezk
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| | - Haidy E Zidan
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed Riad
- Surgery Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Wael Mansy
- Surgery Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Samya A Mohamad
- Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Rezk NA, Zidan HE, Elnaggar YA, Ghorab A. Renalase Gene Polymorphism and Epinephrine Level in Chronic Kidney Disease. Appl Biochem Biotechnol 2014; 175:2309-17. [DOI: 10.1007/s12010-014-1433-x] [Citation(s) in RCA: 9] [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] [Received: 05/22/2014] [Accepted: 11/28/2014] [Indexed: 11/25/2022]
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Rezk NA, Mohamad HS. Influence of Interleukin-1 Gene Cluster Polymorphisms on the Susceptibility and Outcomes of Acute Stroke in Egyptian Patients. Cell Biochem Biophys 2014; 71:637-47. [DOI: 10.1007/s12013-014-0243-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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El-Aziz TAA, Rezk NA. Relation of PAI-1 and TPA Genes Polymorphisms to Acute Myocardial Infarction and its Outcomes in Egyptian Patients. Cell Biochem Biophys 2014; 71:227-34. [DOI: 10.1007/s12013-014-0188-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Karam RA, Rezk NA, Abdelrahman HM, Hassan TH, Mohammad D, Hashim HM, Fattah NRAA. Catechol-O-methyltransferase Val158Met polymorphism and hyperactivity symptoms in Egyptian children with autism spectrum disorder. Res Dev Disabil 2013; 34:2092-2097. [PMID: 23643763 DOI: 10.1016/j.ridd.2013.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Revised: 03/30/2013] [Accepted: 04/01/2013] [Indexed: 06/02/2023]
Abstract
Catechol-O-methyltransferase (COMT) plays an important role in the catabolism of brain dopamine and norepinephrine, which have been implicated in the pathogenesis of Autism spectrum disorder (ASD) as well as in other neuropsychatric disorders. We aimed to investigate the association of COMT Val158Met gene polymorphism with ASD and to examine the influence of such genotypes on hyperactivity symptoms in ASD patients. Eighty ASD patients (mean age 9 ± 1.9 years) and 100 control children (mean age 8.9 ± 1.9 years) were examined. COMT Val58Met polymorphism was genotyped using Tetra-primer ARMS-PCR method. The clinical diagnosis of ASD and ADHD were confirmed according to the DSM-IV criteria for research. We found no significant difference in genotypes or alleles' frequencies of COMT Val158Met polymorphism between ASD patients and control group. There was a significant association between COMT (Val/Val) genotype and both increasing CARS (p=0.001) and hyperactivity scores (p=0.006). Regarding Conner's Score, the DSM-IV hyperactive impulsive were significantly higher in Val/Val genotype than both Met/Val and Met/Met genotypes (p=0.03). Our data suggested an association between COMT Val58Met polymorphism and hyperactivity symptoms in Egyptian children with ASD.
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Affiliation(s)
- Rehab A Karam
- Department of Medical Biochemistry, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
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Hussein YM, El-Shal AS, Rezk NA, Abdel Galil SM, Alzahrani SS. Influence of interleukin-4 gene polymorphisms and interleukin-4 serum level on susceptibility and severity of rheumatoid arthritis in Egyptian population. Cytokine 2013; 61:849-55. [PMID: 23394902 DOI: 10.1016/j.cyto.2013.01.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [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: 07/04/2012] [Revised: 11/19/2012] [Accepted: 01/01/2013] [Indexed: 01/06/2023]
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease in which interleukin-4 (IL-4) plays an important role. This study aimed to investigate the influence of IL-4 variable number of tandem repeats (VNTRs) and IL-4-590 promoter polymorphisms on RA susceptibility, activity and severity in Egyptian population. MATERIALS AND METHODS One hundred and seventy-two RA patients and 172 controls were enrolled in this study. IL-4 VNTR and IL-4-590 promoter polymorphisms were genotyped using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). Serum IL-4 and anti-cyclic citrullinated peptides (anti-CCPs) antibody concentrations were measured by enzyme linked immunosorbent assay (ELISA). RESULTS Subjects with IL-4-590 TT genotype were significantly more likely to develop RA. IL-4 VNTR 1/1 genotype, IL-4-590 TT and CT genotypes were significantly more associated with erosive RA and positive anti-CCP antibody. RA severity parameters were significantly increased, while, IL-4 level was significantly decreased in RA patients with IL-4 VNTR 1/1 and IL-4-590 TT genotypes. Only patients with IL-4-590 TT genotype showed a significant increase of all RA activity parameters. CONCLUSION IL-4 VNTR and IL-4-590 promoter polymorphisms may be helpful for assessing RA severity in Egyptian population. Moreover, IL-4-590 promoter polymorphism may be associated with increased risk and activity of RA.
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Affiliation(s)
- Yousri M Hussein
- Medical Biochemistry Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Rezk NA, Mansour H, Ghoneim NH, Rifaat MM. Typing of Salmonella Typhi strains isolated from Egypt by RAPD PCR. 3 Biotech 2012; 2:17-25. [PMID: 22582153 PMCID: PMC3339613 DOI: 10.1007/s13205-011-0022-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Accepted: 08/11/2011] [Indexed: 01/22/2023] Open
Abstract
PCR-based fingerprinting using random amplified polymorphic DNA (RAPD) has been used widely for genome identification. In this study, 13 Salmonella Typhi strains were isolated from typhoid patients from Aswan, Cairo, Fayoum, and Monofya Governorates of Egypt. The isolates, along with three reference strains, i.e., O901, H901, and Ty2 were subjected to whole genome typing by RAPD PCR. Three RAPD-PCR 10-mer primers generated a total of 85 RAPD bands (81 polymorphic bands), 12 distinct PCR profiles, and proved to be useful for discriminating the isolates and strains studied. Interestingly, the B1 and C1 PCR profile were found only in Cairo and Monofya, respectively; and some PCR types appeared only in certain Governorates of Egypt. By combining the profiles obtained with the primer trio used in this study, an excellent discrimination index (D) of 0.942 was reached. Pairwise comparisons of Jaccard’s similarity coefficients calculated among the 12 PCR types identified three major clusters; i.e., O901 branch and Ty2 and H901 sub-branches. Principal component analysis adequately resolved each of these three major clusters. Three principal components accounted for about 72% of the variation, with the first two components accounting for about 62% of the total variance among the genotypes studied. Biclustering improved the display of groups of RAPD amplicons (markers) that cluster similarly across the genomes and could delineate features pertaining to genome structure. In conclusion, RAPD PCR provided a fast method with high potentials in surveillance and epidemiological investigations of Salmonella Typhi infections.
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Affiliation(s)
- Noha A. Rezk
- R&D Department, Holding Company for Biological Products and Vaccines (VACSERA), Giza, 12511 Egypt
| | - Hoda Mansour
- Naval Medical Research Unit No. 3 (NAMRU-3), Cairo, 11591 Egypt
| | - Nahed H. Ghoneim
- Department of Zoonosis, Faculty of Veterinary Medicine, Cairo University, Giza, 12511 Egypt
| | - Mahmoud M. Rifaat
- Department of Biotechnology, Faculty of Science, Taif University, Taif, 21974 Kingdom of Saudi Arabia
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