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Habib GM, Ramadan A, El-Ansary M, Abdellatif Z, El-Serafy M, Okasha H. Value of pancreatic cyst fluid SPINK1 and glucose in differentiating potentially malignant cysts from those of benign nature: A prospective cohort study. Saudi J Gastroenterol 2022; 28:348-354. [PMID: 35848704 PMCID: PMC9752528 DOI: 10.4103/sjg.sjg_81_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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Diagnosis of malignant pancreatic cystic lesions (PCLs) is challenging as there is no investigation that offers both high diagnostic sensitivity and specificity for a definite diagnosis. Accurate diagnosis of cyst type is vital in order to not miss opportunities for early treatment of potentially malignant lesions and to avoid unnecessary surgeries. Serine protease inhibitor Kazal type I (SPINK1) and glucose are promising cyst fluid markers for differentiation of mucinous from non-mucinous cysts. We aim to validate the value of SPINK1 and glucose in detecting potentially malignant PCLs. METHODS A prospective study was conducted on 80 patients presenting with PCLs. Endoscopic ultrasound (EUS) evaluation of detailed cyst morphology and EUS with fine needle aspiration (FNA) were done. Fluid analysis for carcinoembryonic antigen (CEA), glucose and SPINK1 and cytopathology were done. We compared these data with the final diagnosis based on cytopathological and postoperative histopathological examination. RESULTS Cyst fluid SPINK1 was significantly higher in malignant or potentially malignant cysts compared to benign cysts (0.91 vs 0.47 ng/ml; P = 0.001). Also, glucose was significantly lower in malignant or potentially malignant cysts compared to benign cysts (21.5 vs 68.5 mg/dl; P = 0.0001). Glucose and SPINK1 had the best sensitivity and specificity for differentiating mucinous from non-mucinous cysts with 84.78% and 73.53% (AUC 0.76; 95% CI [0.65-0.88]; cutoff value = 42 mg/dl), and 70.59% and 65.22% (AUC 0.72; 95% CI [0.64-0.86]; cutoff value = 0.58 ug/L) respectively. CEA level >192 ng/ml, high SPINK1 level and lymph node enlargement were the independent predictors of malignant cysts. CONCLUSION Cyst fluid SPINK1 and glucose are promising diagnostic markers for the diagnosis of potentially malignant PCLs.
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Affiliation(s)
- Ghada M. Habib
- Department of Hepatology and Endemic Medicine, Cairo University, Cairo, Egypt,Address for correspondence: Dr. Ghada M. Habib, Hepatology and Gastroenterology at Kasr Al-Ainy School of Medicine, Cairo University, 130 3rd District, Al Hadaba Al Wosta, Mokattam, Cairo, Egypt. E-mail:
| | - Ahmed Ramadan
- Department of Hepatology and Endemic Medicine, Cairo University, Cairo, Egypt
| | - Mervat El-Ansary
- Department of Clinical Pathology, Cairo University, Cairo, Egypt
| | - Zeinab Abdellatif
- Department of Hepatology and Endemic Medicine, Cairo University, Cairo, Egypt
| | - Magdy El-Serafy
- Department of Hepatology and Endemic Medicine, Cairo University, Cairo, Egypt
| | - Hussein Okasha
- Department of Internal Medicine Division of Gastroenterology, Cairo University, Cairo, Egypt
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Okasha HH, Abdellatef A, Elkholy S, Mogawer MS, Yosry A, Elserafy M, Medhat E, Khalaf H, Fouad M, Elbaz T, Ramadan A, Behiry ME, Y William K, Habib G, Kaddah M, Abdel-Hamid H, Abou-Elmagd A, Galal A, Abbas WA, Altonbary AY, El-Ansary M, Abdou AE, Haggag H, Abdellah TA, Elfeki MA, Faheem HA, Khattab HM, El-Ansary M, Beshir S, El-Nady M. Role of endoscopic ultrasound and cyst fluid tumor markers in diagnosis of pancreatic cystic lesions. World J Gastrointest Endosc 2022; 14:402-415. [PMID: 35978716 PMCID: PMC9265252 DOI: 10.4253/wjge.v14.i6.402] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/28/2021] [Accepted: 05/07/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Pancreatic cystic lesions (PCLs) are common in clinical practice. The accurate classification and diagnosis of these lesions are crucial to avoid unnecessary treatment of benign lesions and missed opportunities for early treatment of potentially malignant lesions.
AIM To evaluate the role of cyst fluid analysis of different tumor markers such as cancer antigens [e.g., cancer antigen (CA)19-9, CA72-4], carcinoembryonic antigen (CEA), serine protease inhibitor Kazal-type 1 (SPINK1), interleukin 1 beta (IL1-β), vascular endothelial growth factor A (VEGF-A), and prostaglandin E2 (PGE2)], amylase, and mucin stain in diagnosing pancreatic cysts and differentiating malignant from benign lesions.
METHODS This study included 76 patients diagnosed with PCLs using different imaging modalities. All patients underwent endoscopic ultrasound (EUS) and EUS-fine needle aspiration (EUS-FNA) for characterization and sampling of different PCLs.
RESULTS The mean age of studied patients was 47.4 ± 11.4 years, with a slight female predominance (59.2%). Mucin stain showed high statistical significance in predicting malignancy with a sensitivity of 87.1% and specificity of 95.56%. It also showed a positive predictive value and negative predictive value of 93.1% and 91.49%, respectively (P < 0.001). We found that positive mucin stain, cyst fluid glucose, SPINK1, amylase, and CEA levels had high statistical significance (P < 0.0001). In contrast, IL-1β, CA 72-4, VEGF-A, VEGFR2, and PGE2 did not show any statistical significance. Univariate regression analysis for prediction of malignancy in PCLs showed a statistically significant positive correlation with mural nodules, lymph nodes, cyst diameter, mucin stain, and cyst fluid CEA. Meanwhile, logistic multivariable regression analysis proved that mural nodules, mucin stain, and SPINK1 were independent predictors of malignancy in cystic pancreatic lesions.
CONCLUSION EUS examination of cyst morphology with cytopathological analysis and cyst fluid analysis could improve the differentiation between malignant and benign pancreatic cysts. Also, CEA, glucose, and SPINK1 could be used as promising markers to predict malignant pancreatic cysts.
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Affiliation(s)
- Hussein Hassan Okasha
- Department of Internal Medicine and Hepatogastroenterology, Kasr Al-Aini Hospitals, Cairo University, Kasr Al-Aini Hospitals, Cairo University, Cairo 11451, Egypt
| | - Abeer Abdellatef
- Department of Internal Medicine and Hepatogastroenterology, Kasr Al-Aini Hospitals, Cairo University, Kasr Al-Aini Hospitals, Cairo University, Cairo 11451, Egypt
| | - Shaimaa Elkholy
- Department of Internal Medicine and Hepatogastroenterology, Kasr Al-Aini Hospitals, Cairo University, Kasr Al-Aini Hospitals, Cairo University, Cairo 11451, Egypt
| | - Mohamad-Sherif Mogawer
- Department of Internal Medicine and Hepatogastroenterology, Kasr Al-Aini Hospitals, Cairo University, Kasr Al-Aini Hospitals, Cairo University, Cairo 11451, Egypt
| | - Ayman Yosry
- Department of Endemic Diseases, Cairo University, Cairo 11451, Egypt
| | - Magdy Elserafy
- Department of Endemic Diseases, Cairo University, Cairo 11451, Egypt
| | - Eman Medhat
- Department of Endemic Diseases, Cairo University, Cairo 11451, Egypt
| | - Hanaa Khalaf
- Department of Tropical Medicine and Gastroenterology, Minia University, Minia 61511, Egypt
| | - Magdy Fouad
- Department of Tropical Medicine and Gastroenterology, Minia University, Minia 61511, Egypt
| | - Tamer Elbaz
- Department of Endemic Diseases, Cairo University, Cairo 11451, Egypt
| | - Ahmed Ramadan
- Department of Endemic Diseases, Cairo University, Cairo 11451, Egypt
| | - Mervat E Behiry
- Department of Internal Medicine, Kasr Al-Aini Hospitals, Cairo University, Cairo 11562, Egypt
| | - Kerolis Y William
- Department of Internal Medicine and Hepatogastroenterology, Kasr Al-Aini Hospitals, Cairo University, Kasr Al-Aini Hospitals, Cairo University, Cairo 11451, Egypt
| | - Ghada Habib
- Department of Endemic Diseases, Cairo University, Cairo 11451, Egypt
| | - Mona Kaddah
- Department of Endemic Diseases, Cairo University, Cairo 11451, Egypt
| | - Haitham Abdel-Hamid
- Department of Tropical Medicine and Gastroenterology, Minia University, Minia 61511, Egypt
| | - Amr Abou-Elmagd
- Department of Gastroenterology, Armed forces College of Medicine, Cairo 11451, Egypt
| | - Ahmed Galal
- Endoscopy and Internal Medicine Consultant at Dr/Ahmed Galal Endoscopy Center, Alexandria 35516, Egypt
| | - Wael A Abbas
- Department of Internal Medicine, Faculty of Medicine, Assuit University, Assuit 71111, Egypt
| | | | - Mahmoud El-Ansary
- Department of Gastroenterology and Hepatology, Theodor Bilharz Research Institute, Cairo 11451, Egypt
| | - Aml E Abdou
- Department of Microbiology and Immunology, Faculty of Medicine for girls Al-Azhar University, Cairo 11451, Egypt
| | - Hani Haggag
- Department of Internal Medicine and Hepatogastroenterology, Kasr Al-Aini Hospitals, Cairo University, Kasr Al-Aini Hospitals, Cairo University, Cairo 11451, Egypt
| | - Tarek Ali Abdellah
- Department of Internal Medicine, Faculty of Medicine, Ain shams University, Cairo 11451, Egypt
| | - Mohamed A Elfeki
- Department of Internal Medicine, Bani-suef University, Bani-suef, Bani-suef 62511, Egypt
| | - Heba Ahmed Faheem
- Department of Internal Medicine, Faculty of Medicine, Ain shams University, Cairo 11451, Egypt
| | - Hani M Khattab
- Department of Pathology, Faculty of Medicine, Cairo University, Cairo 11451, Egypt
| | - Mervat El-Ansary
- Department of Clinical Pathology, Faculty of Medicine, Cairo University, Cairo 11451, Egypt
| | - Safia Beshir
- Department of Environmental Medicine & Clinical Pathology, National Research Centre, Cairo 11451, Egypt
| | - Mohamed El-Nady
- Department of Internal Medicine and Hepatogastroenterology, Kasr Al-Aini Hospitals, Cairo University, Kasr Al-Aini Hospitals, Cairo University, Cairo 11451, Egypt
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El-Ansary M, Saadi G, Hassaballa M, Zidan M, Abdel Fattah W, Kelany AK, Hanna MOF. Donor cell microchimerism in kidney transplantation: Implications for graft function. Int J Immunogenet 2020; 47:494-500. [PMID: 32881306 DOI: 10.1111/iji.12492] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 03/23/2020] [Accepted: 04/12/2020] [Indexed: 11/28/2022]
Abstract
Given the uncertainty regarding the relationship between donor cells at microchimeric levels and its influence on graft function and clinical outcome, we explored the extent and importance of donor microchimerism in kidney transplantation. Twenty patients with chronic kidney disease who had received allografts from living donors were studied. We examined peripheral whole blood samples from the recipients one month after the transplant, applying mitochondrial DNA variant-specific polymerase chain reaction (PCR) to identify and quantify donor cells in relation to allograft function and survival during three years of follow-up. Higher quantities of donor-derived cell microchimerism in the peripheral blood correlated with better graft function in the early postoperative period at 1 month (R2 = .536, p = .001) and predicted improved graft function 1 year following the transplant (R2 = .430, p = .008). Furthermore, early post-transplant quantities of donor cell microchimerism were an important predictor of improved kidney function 3 years after transplantation (R2 = .397, p = .021). However, donor cell microchimerism failed to predict patient and graft survival after 3 years (odds ratio = 0.536, p = .860). Our findings suggest that donor cell microchimerism plays an immunoregulatory role in kidney transplantation and contributes to donor-specific immune hypo-responsiveness and graft acceptance.
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Affiliation(s)
- Mervat El-Ansary
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Gamal Saadi
- Department of Internal Medicine and Nephrology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - May Hassaballa
- Department of Internal Medicine and Nephrology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mahmoud Zidan
- Department of Internal Medicine and Nephrology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Walaa Abdel Fattah
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ayda K Kelany
- Genome Unit, Kasr El-Aini, Cairo University, Cairo, Egypt
| | - Mariam Onsy F Hanna
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
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Saadi G, El Meligi A, El-Ansary M, Alkemary A, Ahmed G. Evaluation of microRNA-192 in patients with diabetic nephropathy. Egypt J Intern Med 2019. [DOI: 10.4103/ejim.ejim_89_18] [Citation(s) in RCA: 2] [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: 11/04/2022] Open
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Nassar W, El-Ansary M, Sabry D, Mostafa MA, Fayad T, Kotb E, Temraz M, Saad AN, Essa W, Adel H. Erratum to: Umbilical cord mesenchymal stem cells derived extracellular vesicles can safely ameliorate the progression of chronic kidney diseases. Biomater Res 2017; 21:3. [PMID: 28396799 PMCID: PMC5382659 DOI: 10.1186/s40824-017-0089-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 03/16/2017] [Indexed: 11/18/2022] Open
Affiliation(s)
- Wael Nassar
- Department of Internal Medicine, Nephrology Section, Sahel Teaching Hospital, General Organization of Teaching Hospitals and Institutes (GOTHI), Cairo, Egypt.,Department of Internal Medicine, Nephrology Section, Faculty of Medicine, October Six University, Cairo, Egypt
| | - Mervat El-Ansary
- Department of Clinical Pathology, Stem Cells Section, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Dina Sabry
- Department of Biochemistry, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Mostafa A Mostafa
- Department of Internal Medicine, Nephrology Section, Faculty of Medicine, October Six University, Cairo, Egypt
| | - Tarek Fayad
- Department of Internal Medicine, Nephrology Section, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Esam Kotb
- Department of Internal Medicine, Nephrology Section, Faculty of Medicine, October Six University, Cairo, Egypt
| | - Mahmoud Temraz
- Department of Internal Medicine, Nephrology Section, Sahel Teaching Hospital, General Organization of Teaching Hospitals and Institutes (GOTHI), Cairo, Egypt
| | - Abdel-Naser Saad
- Department of Internal Medicine, Nephrology Section, Sahel Teaching Hospital, General Organization of Teaching Hospitals and Institutes (GOTHI), Cairo, Egypt
| | - Wael Essa
- Department of Internal Medicine, Nephrology Section, Sahel Teaching Hospital, General Organization of Teaching Hospitals and Institutes (GOTHI), Cairo, Egypt
| | - Heba Adel
- Department of Clinical Pathology, Stem Cells Section, Faculty of Medicine, Cairo University, Cairo, Egypt
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Nassar W, El-Ansary M, Sabry D, Mostafa MA, Fayad T, Kotb E, Temraz M, Saad AN, Essa W, Adel H. Umbilical cord mesenchymal stem cells derived extracellular vesicles can safely ameliorate the progression of chronic kidney diseases. Biomater Res 2016; 20:21. [PMID: 27499886 PMCID: PMC4974791 DOI: 10.1186/s40824-016-0068-0] [Citation(s) in RCA: 295] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 07/04/2016] [Indexed: 12/29/2022] Open
Abstract
Background Bio-products from stem/progenitor cells, such as extracellular vesicles, are likely a new promising approach for reprogramming resident cells in both acute and chronic kidney disease. Forty CKD patients stage III and IV (eGFR 15–60 mg/ml) have been divided into two groups; twenty patients as treatment group “A” and twenty patients as a matching placebo group “B”. Two doses of MSC-derived extracellular vesicles had been administered to patients of group “A”. Blood urea, serum creatinine, urinary albumin creatinine ratio (UACR) and estimated glomerular filtration rate (eGFR) have been used to assess kidney functions and TNF-α, TGF-β1 and IL-10 have been used to assess the amelioration of the inflammatory immune activity. Results Participants in group A exhibited significant improvement of eGFR, serum creatinine level, blood urea and UACR. Patients of the treatment group “A” also exhibited significant increase in plasma levels of TGF-β1, and IL-10 and significant decrease in plasma levels of TNF-α. Participants of the control group B did not show significant improvement in any of the previously mentioned parameters at any time point of the study period. Conclusion Administration of cell-free cord-blood mesenchymal stem cells derived extracellular vesicles (CF-CB-MSCs-EVs) is safe and can ameliorate the inflammatory immune reaction and improve the overall kidney function in grade III-IV CKD patients.
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Affiliation(s)
- Wael Nassar
- Department of Internal Medicine, Nephrology Section, Sahel Teaching Hospital, General Organization of Teaching Hospitals and Institutes (GOTHI), Cairo, Egypt ; Department of Internal medicine, Nephrology Section, Faculty of Medicine, October Six University, Cairo, Egypt
| | - Mervat El-Ansary
- Department of clinical pathology, stem cells Section, Faculty of medicine, Cairo University, Cairo, Egypt
| | - Dina Sabry
- Department of Biochemistry, Faculty of medicine, Cairo University, Cairo, Egypt
| | - Mostafa A Mostafa
- Department of Internal medicine, Nephrology Section, Faculty of Medicine, October Six University, Cairo, Egypt
| | - Tarek Fayad
- Department of Internal Medicine, Nephrology Section, Faculty of medicine, Cairo University, Cairo, Egypt
| | - Esam Kotb
- Department of Internal medicine, Nephrology Section, Faculty of Medicine, October Six University, Cairo, Egypt
| | - Mahmoud Temraz
- Department of Internal Medicine, Nephrology Section, Sahel Teaching Hospital, General Organization of Teaching Hospitals and Institutes (GOTHI), Cairo, Egypt
| | - Abdel-Naser Saad
- Department of Internal Medicine, Nephrology Section, Sahel Teaching Hospital, General Organization of Teaching Hospitals and Institutes (GOTHI), Cairo, Egypt
| | - Wael Essa
- Department of Internal Medicine, Nephrology Section, Sahel Teaching Hospital, General Organization of Teaching Hospitals and Institutes (GOTHI), Cairo, Egypt
| | - Heba Adel
- Department of clinical pathology, stem cells Section, Faculty of medicine, Cairo University, Cairo, Egypt
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Nassar W, El-Ansary M, Fayyad T, Aziz MA. Extracellular Micro-RNAs in Health and Disease: Basic Science, Biogenesis and Release. ACTA ACUST UNITED AC 2016. [DOI: 10.4236/ajmb.2016.61001] [Citation(s) in RCA: 3] [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: 11/20/2022]
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El-Ansary M, Saadi G, Abd El-Hamid SM. Mesenchymal stem cells are a rescue approach for recovery of deteriorating kidney function. Nephrology (Carlton) 2013. [PMID: 22640266 DOI: 10.1111/j.1440-1797.2012] [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] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AIM Stem cell (SC) therapy for chronic kidney disease (CKD) is urgently needed. The use of mesenchymal stem cells (MSC) is a possible new therapeutic modality. Our work aimed to isolate human MSC from adult bone marrow to improve kidney functions in CKD patients. METHODS In our study 30 patients with impaired kidney function were included, their ages ranged from 22 to 68 years. They included 10 inactive glomerulonephritis patients due to systemic lupus erythromatosus (SLE) (group I), 10 renal transplantation cases (group II) and 10 patients of other aetiologies as the control group. Fifty millilitres of bone marrow was aspirated from the iliac bone, for separation of MSC. RESULTS There was a highly statistically significant difference between both CD271 and CD29 before and after culture with increase of both markers at end of culture, P < 0.01. Finally 50-70 million MSC in 10 mL saline (0.7-1.0 × 10(6) MSC/kg body weight) were infused intravenously in two divided doses one week apart. There was a highly statistically significant difference between each of serum creatinine and creatinine clearance levels before and after MSC injection at 1, 3 and 6 months post-infusion with SLE cases showing a greater decline of their serum creatinine and elevation of mean creatinine clearance levels after injection than transplantation and control groups, P < 0.05. CONCLUSION Mesenchymal stem cells therapy is a potential therapeutic modality for early phases of CKD.
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Affiliation(s)
- Mervat El-Ansary
- Departments of Clinical Pathology, Internal Medicine and Nephrology, Kasr El-Aini, Cairo University, Cairo, Egypt
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Abstract
AIM Stem cell (SC) therapy for chronic kidney disease (CKD) is urgently needed. The use of mesenchymal stem cells (MSC) is a possible new therapeutic modality. Our work aimed to isolate human MSC from adult bone marrow to improve kidney functions in CKD patients. METHODS In our study 30 patients with impaired kidney function were included, their ages ranged from 22 to 68 years. They included 10 inactive glomerulonephritis patients due to systemic lupus erythromatosus (SLE) (group I), 10 renal transplantation cases (group II) and 10 patients of other aetiologies as the control group. Fifty millilitres of bone marrow was aspirated from the iliac bone, for separation of MSC. RESULTS There was a highly statistically significant difference between both CD271 and CD29 before and after culture with increase of both markers at end of culture, P < 0.01. Finally 50-70 million MSC in 10 mL saline (0.7-1.0 × 10(6) MSC/kg body weight) were infused intravenously in two divided doses one week apart. There was a highly statistically significant difference between each of serum creatinine and creatinine clearance levels before and after MSC injection at 1, 3 and 6 months post-infusion with SLE cases showing a greater decline of their serum creatinine and elevation of mean creatinine clearance levels after injection than transplantation and control groups, P < 0.05. CONCLUSION Mesenchymal stem cells therapy is a potential therapeutic modality for early phases of CKD.
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Affiliation(s)
- Mervat El-Ansary
- Departments of Clinical Pathology, Internal Medicine and Nephrology, Kasr El-Aini, Cairo University, Cairo, Egypt
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Mogawer S, Mansour M, Marie M, El-Ansary M, El-Hamid SA. Insulin resistance: a predictor for response to interferon-based therapy in Egyptian patients with chronic HCV genotype 4. Comp Clin Pathol 2012. [DOI: 10.1007/s00580-012-1560-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Galadari I, El-Karamany R, Al-Fouzan AW, El-Ansary M, El-Naby H, Lutfi L. Rapid detection of IgM and IgG antibodies to herpesviridae virus. Eur Ann Allergy Clin Immunol 2006; 38:198-202. [PMID: 16929747] [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: 05/11/2023]
Abstract
In this study, the immunoconcepts EA indirect enzyme antibody technique (colorzyme) was used not only for detection of IgG antibodies but also for quantitative detection of IgM antibodies to Herpes Simplex virus (HSV), Cytomegalovirus (CMV) and Epstein Barr Virus (EBV) to diagnose recent iactivei infection. Reference reactive and negative antisera and randomly collected human sera were tested by complement fixation test (CFT) against HSV antigens and tested also by immunofluorescent (IF) and colorzyme Immunoconcepts EA tests. All sera that were negative to HSV, CMV and EBV antibodies by CFT were negative by IF and colorzyme EA tests. All antibody positive sera and reference positive antisera were also positive by IF and colorzyme EA tests with slight variation in antibody titres between CFT and colorzyme test results. Human sera which were negative or IgM positive to HSV, CMV and EBV by ELISA as well as negative and positive reference sera from different diagnostic kits were retested by IF and colorzyme EA for IgM antiviral reactivity results were concordance by the three rests. All incubations in colorzyme test were at room temperature and only an ordinary microscope used in IF test or plate washers and readers needed for ELISA test. The colorzyme immunoconcepts is a simple, rapid and sensitive for viral diagnosis and can be used in any private laboratory.
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