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Gregersen H, Sun D, Field F, Combs W, Christensen P, Mousa H, Moawad FJ, Eisenstein S, Kassab GS. Fecobionics in proctology: review and perspectives. Surg Open Dig Adv 2023; 12:100117. [PMID: 38313319 PMCID: PMC10838111 DOI: 10.1016/j.soda.2023.100117] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
Fecobionics is a novel integrated technology for assessment of anorectal function. It is a defecatory test with simultaneous measurements of pressures, orientation, and device angle (a proxy of the anorectal angle). Furthermore, the latest Fecobionics prototypes measure diameters (shape) using impedance planimetry during evacuation of the device. The simultaneous measurement of multiple variables in the integrated test allows new metrics to be developed including more advanced novel defecation indices, enabling mechanistic insight in the defecation process at an unprecedented level in patients with anorectal disorders including patients suffering from obstructed defecation, fecal incontinence, and low anterior resection syndrome. The device has the consistency and shape of a normal stool (type 3-4 on the Bristol Stool Form Scale). Fecobionics has been validated on the bench and in animal studies and used in clinical trials to study defecation phenotypes in normal human subjects and patients with obstructed defecation, fecal incontinence, and low anterior resection syndrome after rectal cancer surgery. Subtypes have been defined, especially of patients with obstructed defecation. Furthermore, Fecobionics has been used to monitor biofeedback therapy in patients with fecal incontinence to predict the outcome of the therapy (responder versus non-responder). Most Fecobionics studies showed a closer correlation to symptoms as compared to current technologies for anorectal assessment. The present article outlines previous and ongoing work, and perspectives for future studies in proctology, including in physiological assessment of function, diagnostics, monitoring of therapy, and as a tool for biofeedback therapy.
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Affiliation(s)
- H Gregersen
- California Medical Innovations Institute, San Diego, California, USA
| | - D Sun
- School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China
| | - F Field
- S3DT Holdings, San Diego, California, USA
| | - W Combs
- S3DT Holdings, San Diego, California, USA
| | - P Christensen
- Department of Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - H Mousa
- CHOP, University of Pennsylvania, Philadelphia, Pennsylvania
| | - F J Moawad
- Scripps Clinic, Division of Gastroenterology, La Jolla, California, USA
| | - S Eisenstein
- Department of Surgery, University of California San Diego, La Jolla, California, USA
| | - G S Kassab
- California Medical Innovations Institute, San Diego, California, USA
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2
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Mousa H. 4 Cardiovascular Disease in Women with and Without Rheumatoid Arthritis. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.001] [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] [Indexed: 11/15/2022]
Abstract
Abstract
Compare the incidence of coronary artery disease (CAD) in women with rheumatoid arthritis (RA) with that in women without RA, adjusting for traditional CAD risk factors (age, smoking, race, diabetes mellitus, hypercholesterolemia, hypertension, physical inactivity, family history, and obesity). A logistic regression analysis is used to control for confounders and other variables. To compare the incidence of coronary artery disease (CAD) in women with rheumatoid arthritis (RA) with that in women without RA, adjusting for traditional CAD risk factors (age, smoking, race, diabetes mellitus, hypercholesterolemia, hypertension, physical inactivity, family history, and obesity). A logistic regression analysis will be used to control for confounders and other variables. Data analysis is limited to all women who participated in the 2010 survey and of the 7844 who completed the 2010 Women's Health Survey, 7338 (93.5%) participants did not have rheumatoid arthritis, 310 (3.9%) have rheumatoid arthritis, and 196 (2.4%) were missing. Incidence rate of CAD is measured in both groups. Data analysis will be limited to all women who participated in the 2010 survey and of the 7844 who completed the 2010 Women's Health Survey, 7338 (93.5%) participants did not have rheumatoid arthritis, 310 (3.9%) have rheumatoid arthritis, and 196 (2.4%) were missing
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Affiliation(s)
- H. Mousa
- University of Kentucky, Lexington, USA
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3
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Al-Dherasi A, Liao Y, Al-Mosaib S, Hua R, Wang Y, Yu Y, Zhang Y, Zhang X, Jalayta R, Mousa H, Al-Danakh A, Alnadari F, Almoiliqy M, Baldi S, Shi L, Lv D, Li Z, Liu Q. Allele frequency deviation (AFD) as a new prognostic model to predict overall survival in lung adenocarcinoma (LUAD). Cancer Cell Int 2021; 21:451. [PMID: 34446004 PMCID: PMC8390239 DOI: 10.1186/s12935-021-02127-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 05/22/2021] [Accepted: 07/30/2021] [Indexed: 12/24/2022] Open
Abstract
Background Lung adenocarcinoma (LUAD) remains one of the world’s most known aggressive malignancies with a high mortality rate. Molecular biological analysis and bioinformatics are of great importance as they have recently occupied a large area in the studies related to the identification of various biomarkers to predict survival for LUAD patients. In our study, we attempted to identify a new prognostic model by developing a new algorithm to calculate the allele frequency deviation (AFD), which in turn may assist in the early diagnosis and prediction of clinical outcomes in LUAD. Method First, a new algorithm was developed to calculate AFD using the whole-exome sequencing (WES) dataset. Then, AFD was measured for 102 patients, and the predictive power of AFD was assessed using Kaplan–Meier analysis, receiver operating characteristic (ROC) curves, and area under the curve (AUC). Finally, multivariable cox regression analyses were conducted to evaluate the independence of AFD as an independent prognostic tool. Result The Kaplan–Meier analysis showed that AFD effectively segregated patients with LUAD into high-AFD-value and low-AFD-value risk groups (hazard ratio HR = 1.125, 95% confidence interval CI 1.001–1.26, p = 0.04) in the training group. Moreover, the overall survival (OS) of patients who belong to the high-AFD-value group was significantly shorter than that of patients who belong to the low-AFD-value group with 42.8% higher risk and 10% lower risk of death for both groups respectively (HR for death = 1.10; 95% CI 1.01–1.2, p = 0.03) in the training group. Similar results were obtained in the validation group (HR = 4.62, 95% CI 1.22–17.4, p = 0.02) with 41.6%, and 5.5% risk of death for patients who belong to the high and low-AFD-value groups respectively. Univariate and multivariable cox regression analyses demonstrated that AFD is an independent prognostic model for patients with LUAD. The AUC for 5-year survival were 0.712 and 0.86 in the training and validation groups, respectively. Conclusion AFD was identified as a new independent prognostic model that could provide a prognostic tool for physicians and contribute to treatment decisions. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02127-z.
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Affiliation(s)
- Aisha Al-Dherasi
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China.,Department of Biochemistry, Faculty of Science, Ibb University, Ibb, Yemen
| | - Yuwei Liao
- Yangjiang Key Laboratory of Respiratory Diseases, Yangjiang Peoples Hospital, Yangjiang, Guangdong, People's Republic of China
| | - Sultan Al-Mosaib
- Department of Computer Science and Technology, Sahyadri Science Collage, Kuvempu University, Shimoga district, Karnataka, India
| | - Rulin Hua
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Yichen Wang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Ying Yu
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Yu Zhang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Xuehong Zhang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Raeda Jalayta
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Haithm Mousa
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Abdullah Al-Danakh
- Department of Urology, First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Fawze Alnadari
- Department of Food Science and Engineering, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, People's Republic of China
| | - Marwan Almoiliqy
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000, Sichuan, China
| | - Salem Baldi
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Leming Shi
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Dekang Lv
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China.
| | - Zhiguang Li
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China.
| | - Quentin Liu
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China.
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Al-Dherasi A, Huang QT, Liao Y, Al-Mosaib S, Hua R, Wang Y, Yu Y, Zhang Y, Zhang X, Huang C, Mousa H, Ge D, Sufiyan S, Bai W, Liu R, Shao Y, Li Y, Zhang J, Shi L, Lv D, Li Z, Liu Q. A seven-gene prognostic signature predicts overall survival of patients with lung adenocarcinoma (LUAD). Cancer Cell Int 2021; 21:294. [PMID: 34092242 PMCID: PMC8183047 DOI: 10.1186/s12935-021-01975-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 03/07/2021] [Accepted: 05/07/2021] [Indexed: 02/06/2023] Open
Abstract
Background Lung adenocarcinoma (LUAD) is one of the most common types in the world with a high mortality rate. Despite advances in treatment strategies, the overall survival (OS) remains short. Our study aims to establish a reliable prognostic signature closely related to the survival of LUAD patients that can better predict prognosis and possibly help with individual monitoring of LUAD patients. Methods Raw RNA-sequencing data were obtained from Fudan University and used as a training group. Differentially expressed genes (DEGs) for the training group were screened. The univariate, least absolute shrinkage and selection operator (LASSO), and multivariate cox regression analysis were conducted to identify the candidate prognostic genes and construct the risk score model. Kaplan–Meier analysis, time-dependent receiver operating characteristic (ROC) curve were used to evaluate the prognostic power and performance of the signature. Moreover, The Cancer Genome Atlas (TCGA-LUAD) dataset was further used to validate the predictive ability of prognostic signature. Results A prognostic signature consisting of seven prognostic-related genes was constructed using the training group. The 7-gene prognostic signature significantly grouped patients in high and low-risk groups in terms of overall survival in the training cohort [hazard ratio, HR = 8.94, 95% confidence interval (95% CI)] [2.041–39.2]; P = 0.0004), and in the validation cohort (HR = 2.41, 95% CI [1.779–3.276]; P < 0.0001). Cox regression analysis (univariate and multivariate) demonstrated that the seven-gene signature is an independent prognostic biomarker for predicting the survival of LUAD patients. ROC curves revealed that the 7-gene prognostic signature achieved a good performance in training and validation groups (AUC = 0.91, AUC = 0.7 respectively) in predicting OS for LUAD patients. Furthermore, the stratified analysis of the signature showed another classification to predict the prognosis. Conclusion Our study suggested a new and reliable prognostic signature that has a significant implication in predicting overall survival for LUAD patients and may help with early diagnosis and making effective clinical decisions regarding potential individual treatment. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-01975-z.
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Affiliation(s)
- Aisha Al-Dherasi
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China.,Department of Biochemistry, Faculty of Science, Ibb University, Ibb, Yemen
| | - Qi-Tian Huang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Yuwei Liao
- Yangjiang Key Laboratory of Respiratory Diseases, Yangjiang People's Hospital, Yangjiang, Guangdong Province, People's Republic of China
| | - Sultan Al-Mosaib
- Department of Computer Science and Technology, Sahyadri Science College, Kuvempu University, Shimoga, Karnataka, India
| | - Rulin Hua
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Yichen Wang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Ying Yu
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Yu Zhang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Xuehong Zhang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Chao Huang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Haithm Mousa
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Dongcen Ge
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Sufiyan Sufiyan
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Wanting Bai
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Ruimei Liu
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Yanyan Shao
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Yulong Li
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Jingkai Zhang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China
| | - Leming Shi
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Dekang Lv
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China.
| | - Zhiguang Li
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China.
| | - Quentin Liu
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, 116044, Liaoning, People's Republic of China.
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Almoiliqy M, Wen J, Qaed E, Sun Y, Lian M, Mousa H, Al-Azab M, Zaky MY, Chen D, Wang L, AL-Sharabi A, Liu Z, Sun P, Lin Y. Protective Effects of Cinnamaldehyde against Mesenteric Ischemia-Reperfusion-Induced Lung and Liver Injuries in Rats. Oxid Med Cell Longev 2020; 2020:4196548. [PMID: 33381264 PMCID: PMC7748914 DOI: 10.1155/2020/4196548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 11/17/2020] [Accepted: 11/25/2020] [Indexed: 12/23/2022]
Abstract
The aim of this study was to characterize and reveal the protective effects of cinnamaldehyde (CA) against mesenteric ischemia-reperfusion- (I/R-) induced lung and liver injuries and the related mechanisms. Sprague-Dawley (SPD) rats were pretreated for three days with 10 or 40 mg/kg/d, ig of CA, and then induced with mesenteric ischemia for 1 h and reperfusion for 2 h. The results indicated that pretreatment with 10 or 40 mg/kg of CA attenuated morphological damage in both lung and liver tissues of mesenteric I/R-injured rats. CA pretreatment significantly restored the levels of aspartate transaminase (AST) and alanine transaminase (ALT) in mesenteric I/R-injured liver tissues, indicating the improvement of hepatic function. CA also significantly attenuated the inflammation via reducing myeloperoxidase (MOP) activity and downregulating the expression of inflammation-related proteins, including interleukin-6 (IL-6), interleukin-1β (IL-1β), cyclooxygenase-2 (Cox-2), and tumor necrosis factor receptor type-2 (TNFR-2) in both lung and liver tissues of mesenteric I/R-injured rats. Pretreatment with CA significantly downregulated nuclear factor kappa B- (NF-κB-) related protein expressions (NF-κB p65, NF-κB p50, I kappa B alpha (IK-α), and inhibitor of nuclear factor kappa-B kinase subunit beta (IKKβ)) in both lung and liver tissues of mesenteric I/R-injured rats. CA also significantly downregulated the protein expression of p53 family members, including caspase-3, caspase-9, Bax, and p53, and restored Bcl-2 in both lung and liver tissues of mesenteric I/R-injured rats. CA pretreatment significantly reduced TUNEL-apoptotic cells and significantly inhibited p53 and NF-κB p65 nuclear translocation in both lung and liver tissues of mesenteric I/R-injured rats. CA neither induced pulmonary and hepatic histological alterations nor affected the parameters of inflammation and apoptosis in sham rats. We conclude that CA alleviated mesenteric I/R-induced pulmonary and hepatic injuries via attenuating apoptosis and inflammation through inhibition of NF-κB and p53 pathways in rats, suggesting the potential role of CA in remote organ ischemic injury protection.
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Affiliation(s)
- Marwan Almoiliqy
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
- Key Lab of Aromatic Plant Resources Exploitation and Utilization in Sichuan Higher Education, Yibin University, Yibin, 644000 Sichuan, China
| | - Jin Wen
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
| | - Eskandar Qaed
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
| | - Yuchao Sun
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
| | - Mengqiao Lian
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
| | - Haithm Mousa
- Department of Clinical Biochemistry, Dalian Medical University, Dalian 116044, China
| | - Mahmoud Al-Azab
- Department of Immunology, Guangzhou Institute of Pediatrics, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Mohamed Y. Zaky
- Institute of Cancer Stem Cell, Dalian Medical University, Dalian 116044, China
- Molecular Physiology Division, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Dapeng Chen
- Laboratory Animal Center, Dalian Medical University, Dalian 116044, China
| | - Li Wang
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
| | - Abdulkarem AL-Sharabi
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
| | - Zhihao Liu
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
| | - Pengyuan Sun
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
| | - Yuan Lin
- Department of Pharmacology, Pharmaceutical College, Dalian Medical University, Dalian 116044, China
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6
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Shopit A, Li X, Tang Z, Awsh M, Shobet L, Niu M, Wang H, Mousa H, Alshwmi M, Tesfaldet T, Gamallat Y, Li H, Chu P, Ahmad N, Jamalat Y, Ai J, Qaed E, Almoiliqy M, Wang S, Tang Z. miR-421 up-regulation by the oleanolic acid derivative K73-03 regulates epigenetically SPINK1 transcription in pancreatic cancer cells leading to metabolic changes and enhanced apoptosis. Pharmacol Res 2020; 161:105130. [PMID: 32818653 DOI: 10.1016/j.phrs.2020.105130] [Citation(s) in RCA: 19] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/24/2020] [Accepted: 08/07/2020] [Indexed: 12/19/2022]
Abstract
SPINK1 overexpression promotes cancer cell aggressiveness and confers chemo-resistance to multiple drugs in pancreatic cancer. Oleanolic acid (OA) derivatives possess active effects against different cancers. Here we report the effect of K73-03, a new novel OA derivative, against pancreatic cancer through mitochondrial dysfunction via miR-421/SPINK1 regulation. We examined the binding ability of miR-421 with SPINK1-3'UTR Luciferase reporter assays. Moreover, miR-421/SPINK1 expressions in pancreatic cancer, with or without K73-03 treatment, were evaluated. Cells viability, migration, autophagy, mitochondrial function and apoptosis were examined with or without K73-03 treatment. We established that the K73-03 effect on the miR-421 that plays a crucial role in the regulation of SPINK1 in pancreatic cancer. Our findings indicated that K73-03 inhibited the mitochondrial function that led to inducing autophagy and apoptosis through epigenetic SPINK1 down-regulation via miR-421 up-regulation in pancreatic cancer. Furthermore, the inhibition of miR-421 expression in pancreatic cancer cells abolished the efficacy of K73-03 against SPINK1 oncogenic properties. We found an interesting finding that the interaction between miR-421 and SPINK1 is related to mitochondrial function through the effect of K73-03. Further, SPINK1 appear to be the molecular targets of K73-03 especially more than gemcitabine.
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Affiliation(s)
- Abdullah Shopit
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Xiaodong Li
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zhongyuan Tang
- Department of Orthodontics, School of Stomatology, Jilin University, Changchun, China
| | - Mohammed Awsh
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Loubna Shobet
- Department of Stomatology, Southern Medical University, Guangzhou, China
| | - Mengyue Niu
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Hongyan Wang
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Haithm Mousa
- Clinical Diagnostic Laboratory Department, Dalian Medical University, Dalian, China
| | - Mohammed Alshwmi
- Clinical Diagnostic Laboratory Department, Dalian Medical University, Dalian, China
| | - Tsehaye Tesfaldet
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Yaser Gamallat
- Department of Biochemistry, Dalian Medical University, Dalian, China
| | - Hailong Li
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Peng Chu
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Nisar Ahmad
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Yazeed Jamalat
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Jie Ai
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Eskandar Qaed
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Marwan Almoiliqy
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Shisheng Wang
- College of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian, China
| | - Zeyao Tang
- Acad Integrated Med & Collage of Pharmacy, Department of Pharmacology, Dalian Medical University, Dalian, China.
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7
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Khalil A, Sharp A, Cornforth C, Jackson R, Mousa H, Stock S, Harrold J, Turner MA, Kenny LC, Baker PN, Johnstone ED, Von Dadelszen P, Magee L, Papageorghiou AT, Alfirevic Z. Effect of sildenafil on maternal hemodynamics in pregnancies complicated by severe early-onset fetal growth restriction: planned subgroup analysis from a multicenter randomized placebo-controlled double-blind trial. Ultrasound Obstet Gynecol 2020; 55:198-209. [PMID: 31432556 DOI: 10.1002/uog.20851] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 07/07/2019] [Accepted: 08/09/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Fetal growth restriction (FGR) is associated with maternal cardiovascular changes. Sildenafil, a phosphodiesterase type-5 inhibitor, potentiates the actions of nitric oxide, and it has been suggested that it alters maternal hemodynamics, potentially improving placental perfusion. Recently, the Dutch STRIDER trial was stopped prematurely owing to excess neonatal mortality secondary to pulmonary hypertension. The main aim of this study was to investigate the effect of sildenafil on maternal hemodynamics in pregnancies with severe early-onset FGR. METHODS This was a cardiovascular substudy within a UK multicenter, placebo-controlled trial, in which 135 women with a singleton pregnancy and severe early-onset FGR (defined as a combination of estimated fetal weight or abdominal circumference below the 10th centile and absent/reversed end-diastolic flow in the umbilical artery on Doppler velocimetry, diagnosed between 22 + 0 and 29 + 6 weeks' gestation) were assigned randomly to receive either 25 mg sildenafil three times daily or placebo until 32 + 0 weeks' gestation or delivery. Maternal blood pressure (BP), heart rate (HR), augmentation index, pulse wave velocity (PWV), cardiac output, stroke volume (SV) and total peripheral resistance were recorded before randomization, 1-2 h and 48-72 h post-randomization, and 24-48 h postnatally. For continuous data, analysis was performed using repeated measures ANOVA methods including terms for timepoint, treatment allocation and their interaction. RESULTS Included were 134 women assigned randomly to sildenafil (n = 69) or placebo (n = 65) who had maternal BP and HR recorded at baseline. At 1-2 h post-randomization, compared with baseline values, sildenafil increased maternal HR by 4 bpm more than did placebo (mean difference, 5.00 bpm (95% CI, 1.00-12.00 bpm) vs 1.25 bpm (95% CI, -5.38 to 7.88 bpm); P = 0.004) and reduced systolic BP by 1 mmHg more (mean difference, -4.13 mmHg (95% CI, -9.94 to 1.44 mmHg) vs -2.75 mmHg (95% CI, -7.50 to 5.25 mmHg); P = 0.048). Even after adjusting for maternal mean arterial pressure, sildenafil reduced aortic PWV by 0.60 m/s more than did placebo (mean difference, -0.90 m/s (95% CI, -1.31 to -0.51 m/s) vs -0.26 m/s (95% CI, -0.75 to 0.59 m/s); P = 0.001). Sildenafil was associated with a non-significantly greater decrease in SV index after 1-2 h post-randomization than was placebo (mean difference, -5.50 mL/m2 (95% CI, -11.00 to -0.50 mL/m2 ) vs 0.00 mL/m2 (95% CI, -5.00 to 4.00 mL/m2 ); P = 0.056). CONCLUSIONS Sildenafil in a dose of 25 mg three times daily increases HR, reduces BP and reduces arterial stiffness in pregnancies complicated by severe early-onset FGR. These changes are short term, modest and consistent with the anticipated vasodilatory effect. They have no short- or long-term clinical impact on the mother. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- A Khalil
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, University of London, London, UK
- Vascular Biology Research Centre, Molecular and Clinical Sciences Research Institute, St George's University of London, London, UK
| | - A Sharp
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
| | - C Cornforth
- Liverpool Clinical Trials Unit, University of Liverpool, Liverpool, UK
| | - R Jackson
- Liverpool Clinical Trials Unit, University of Liverpool, Liverpool, UK
| | - H Mousa
- Fetal Medicine Unit, University of Leicester, Leicester, UK
| | - S Stock
- The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - J Harrold
- Liverpool Clinical Trials Unit, University of Liverpool, Liverpool, UK
| | - M A Turner
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
| | - L C Kenny
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
| | - P N Baker
- College of Life Sciences, University of Leicester, Leicester, UK
| | - E D Johnstone
- Maternal & Fetal Health Research Centre, University of Manchester, Manchester, UK
| | - P Von Dadelszen
- Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, UK
| | - L Magee
- Department of Women and Children's Health, School of Life Course Sciences, King's College London, London, UK
| | - A T Papageorghiou
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust, University of London, London, UK
| | - Z Alfirevic
- Department of Women's and Children's Health, University of Liverpool, Liverpool, UK
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Li X, Na H, Xu L, Zhang X, Feng Z, Zhou X, Cui J, Zhang J, Lin F, Yang S, Yue F, Mousa H, Zuo Y. DC-SIGN mediates gastric cancer progression by regulating the JAK2/STAT3 signaling pathway and affecting LncRNA RP11-181G12.2 expression. Biomed Pharmacother 2019; 121:109644. [PMID: 31766099 DOI: 10.1016/j.biopha.2019.109644] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [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: 06/05/2019] [Revised: 11/01/2019] [Accepted: 11/01/2019] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The molecular mechanisms of gastric cancer (GC) development are very complicated. Recent studies revealed that DC-specific intercellular adhesion molecule 3-grabbing nonintegrin (DC-SIGN)-related protein (DC-SIGNR) is involved in colon cancer and GC biological processes. However, the exact roles of DC-SIGN in GC remain unrevealed. METHODS DC-SIGN overexpression and knockdown experiments were performed by using DC-SIGN shRNA or DC-SIGN plasmid to investigate the biological roles of DC-SIGN in proliferation, cell cycle progression, migration and invasion of GC cells in vitro. Furthermore, the lncRNA profiles of SGC-7901 cells with control shRNA and DC-SIGN shRNA were generated by using microarray analysis. Mechanistically, the relationship between DC-SIGN, RP11-181G12.2 and the JAK2/STAT3 signaling pathway was then investigated using qRT-PCR and western blot assays. Additionally, we analyzed DC-SIGN and RP11-181G12.2 expression levels in GC specimens based on the Cancer Genome Atlas database. RESULTS In this study, the results showed that DC-SIGN was highly expressed in GC cells and significantly correlated with advanced clinical stage and lymphatic metastasis. Downregulation of DC-SIGN significantly inhibited the proliferation, cell cycle progression, migration and invasion of GC cells in vitro. The reverse results could partly be seen with the upregulation of DC-SIGN. Mechanistically, knockdown of DC-SIGN inactivated the JAK2/STAT3 signaling pathway, and overexpression of DC-SIGN activated the JAK2/STAT3 signaling pathway. In addition, through LncPath microarray analysis, we identified a lncRNA, RP11-181G12.2, that was significantly upregulated after knockdown of DC-SIGN; this was also confirmed by qRT-PCR. Furthermore, RP11-181G12.2 knockdown enhanced DC-SIGN expression in GC cells, further activating the JAK2/STAT3 signaling pathway. In contrast, DC-SIGN overexpression suppressed RP11-181G12.2 expression. CONCLUSIONS Our study suggests that DC-SIGN might be involved in the progression of GC by regulating the JAK2/STAT3 signaling pathway and affecting lncRNA RP11-181G12.2 expression.
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Affiliation(s)
- Xiaomeng Li
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Heya Na
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China; Department of Laboratory Medicine, The People's Hospital of Liaoning Province, Shenyang, 110016, China.
| | - Lijie Xu
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Xinsheng Zhang
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116044, China.
| | - Zhen Feng
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, 116044, China.
| | - Xu Zhou
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Jingyi Cui
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Jingbo Zhang
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Fang Lin
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Shiqing Yang
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Fangxia Yue
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Haithm Mousa
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
| | - Yunfei Zuo
- Department of Clinical Biochemistry, College of Laboratory Diagnostic Medicine, Dalian Medical University, Dalian, 116044, China.
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Gamallat Y, Ren X, Meyiah A, Li M, Ren X, Jamalat Y, Song S, Xie L, Ahmad B, Shopit A, Mousa H, Ma Y, Xin Y, Ding D. The immune-modulation and gut microbiome structure modification associated with long-term dietary supplementation of Lactobacillus rhamnosus using 16S rRNA sequencing analysis. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.12.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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10
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Rackoll T, Nave A, Grittner U, Mousa H, Villringer K, Ebinger M, Flöel A. P60. Direct and long term influence of cardiovascular training on cognition in subacute stroke patients. Clin Neurophysiol 2018. [DOI: 10.1016/j.clinph.2018.04.696] [Citation(s) in RCA: 1] [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] [Indexed: 11/30/2022]
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Omran M, Abdelfatah R, Mousa H, Alieldin N, Shouman S. Relationship between adherence, drug level and clinical response achieved in patients with chronic myeloid leukemia on imatinib. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw375.32] [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: 11/14/2022] Open
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12
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Abu-Zidan FM, Hefny AF, Mousa H, Torab FC, Hassan I. Camel-related pancreatico-duodenal injuries: a report of three cases and review of literature. Afr Health Sci 2013; 13:762-7. [PMID: 24250319 DOI: 10.4314/ahs.v13i3.35] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Human pancreatico-duodenal injuries caused by camels are extremely rare. OBJECTIVE We report three patients who sustained camel-related pancreatico-duodenal injuries and review the literature on this topic. RESULTS A 32-year camel caregiver was kicked by a camel which then stepped on his abdomen trying to kill him. The patient's abdomen was soft and lax. CT scan of the abdomen showed free retroperitoneal air. Laparotomy revealed a complete tear of the anterior wall of the second part of duodenum which was primarily repaired. A 40-year camel caregiver was directly kicked into his abdomen by a camel. He developed traumatic pancreatitis which was treated conservatively. A 31-year-old male fell down on his abdomen while riding a camel. Abdominal examination revealed tenderness and guarding. Abdominal CT Scan showed complete transection of the neck of the pancreas which was confirmed by laparotomy. The patient had distal pancreatectomy with preservation of the spleen. All patients were discharged home in good condition. CONCLUSION These cases demonstrate the misleading presentation of the camel-related pancreatico-duodenal injuries and their unique mechanism of injury.
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Affiliation(s)
- F M Abu-Zidan
- Trauma Group, Faculty of Medicine and Health Sciences, UAE University, UAE ; Department of Surgery, Al-Ain Hospital, Al-Ain, UAE
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Al-Malah K, Mousa H, Al-Remawi K. Microemulsions of Potassium Oleate, Tween-20, Propylene Carbonate, and Ethylene Glycol as Drug Vehicles for Mefenamic Acid. J DISPER SCI TECHNOL 2011. [DOI: 10.1080/01932691.2010.498241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Salman MM, Twining P, Mousa H, James D, Momtaz M, Aboulghar M, El-Sheikhah A, Bugg GJ. Evaluation of offline analysis of archived three-dimensional volume datasets in the diagnosis of fetal brain abnormalities. Ultrasound Obstet Gynecol 2011; 38:165-169. [PMID: 21500297 DOI: 10.1002/uog.8921] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To retrospectively evaluate the reliability of offline manipulation of archived three-dimensional (3D) ultrasound volumes in the assessment of the normal fetal brain and the diagnosis of fetal brain abnormalities. METHODS Seventy-nine 3D volume datasets, archived at the time of scanning, from women attending a tertiary center, were analyzed. They comprised 52 cases with brain abnormalities and 27 normal controls. Postnatal magnetic resonance imaging or postmortem examination confirmed the final diagnosis in all cases with brain anomalies. Offline analysis of the 79 anonymized 3D volume datasets was carried out by three fetal medicine experts, examiner one (E1), examiner two (E2) and examiner three (E3), using 4D View software. The experts were blinded to any prior diagnosis or history. Data were collected on a specially designed data sheet and entered into a specialized database for analysis. Results were compared between examiners, with the initial two-dimensional (2D) diagnosis and with the final definitive diagnosis by calculation of percentage agreement and kappa coefficients. RESULTS Of the 52 cases with brain anomalies, the correct diagnosis was reached in 88.5% (46/52), 98.1% (51/52) and 92.3% (48/52) of cases on analysis of the 3D volumes by E1, E2 and E3, respectively, whereas only 82.7% (43/52) of cases were correctly diagnosed on the initial 2D examination when compared with the definitive diagnosis. Fetuses without brain anomalies were identified as such by the three experts with 100% agreement. There was good agreement between the initial 2D examination and the analysis of 3D volumes by each of the experts: 86.1% for E1 (κ = 0.7), 89.9% for E2 (κ = 0.79) and 88.6% for E3 (κ = 0.76). CONCLUSIONS 3D volume datasets are an appropriate and reliable format for storing data from examination of the fetal brain. Offline analysis of 3D datasets is a reliable method that can be used to help in the assessment of brain anomalies and could be a useful adjunct to realtime 2D ultrasonography.
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Affiliation(s)
- M M Salman
- University of Nottingham, Nottingham, UK
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16
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Mousa H, Agterof W, Mellema J. Determination of the Orthokinetic Coalescence Efficiency of Droplets in Simple Shear Flow Using Mobile, Partially Mobile and Immobile Drainage Models and Trajectory Analysis. Chem Eng Res Des 2002. [DOI: 10.1205/026387602317446380] [Citation(s) in RCA: 5] [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] [Indexed: 11/19/2022]
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17
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Orenstein SR, Shalaby TM, Di Lorenzo C, Putnam PE, Sigurdsson L, Mousa H, Kocoshis SA. The spectrum of pediatric eosinophilic esophagitis beyond infancy: a clinical series of 30 children. Am J Gastroenterol 2000; 95:1422-30. [PMID: 10894574 DOI: 10.1111/j.1572-0241.2000.02073.x] [Citation(s) in RCA: 346] [Impact Index Per Article: 14.4] [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: 12/11/2022]
Abstract
OBJECTIVES Eosinophilic esophagitis, previously confused with esophageal inflammation due to gastroesophageal reflux, has recently begun to be distinguished from it. We undertook this analysis of our large series of children with the condition to clarify its spectrum: its presenting symptoms; its relation to allergy, respiratory disease, and reflux; its endoscopic and histological findings; and its diagnosis and therapy. METHODS We analyzed the details of our clinical series of 30 children with eosinophilic esophagitis, defining it as > or =5 eosinophils per high power field in the distal esophageal epithelium. Retrospective chart review was supplemented by prospective, blinded, duplicate quantitative evaluation of histology specimens, and by telephone contact with some families to clarify subsequent course. Presentation and analysis of the series as a whole is preceded by a case illustrating a typical presentation with dysphagia and recurrent esophageal food impactions. RESULTS Presenting symptoms encompass vomiting, pain, and dysphagia (some with impactions or strictures). Allergy, particularly food allergy, is an associated finding in most patients, and many have concomitant asthma or other chronic respiratory disease. A subtle granularity with furrows or rings is newly identified as the endoscopic herald of histological eosinophilic esophagitis. Histological characteristics include peripapillary or juxtaluminal eosinophil clustering in certain cases. Association with eosinophilic gastroenteritis occurs, but is not common. Differentiation from gastroesophageal reflux disease is approached by analyzing eosinophil density and response to therapeutic trials. Therapy encompasses dietary elimination and anti-inflammatory pharmacotherapy. CONCLUSION Awareness of the spectrum of eosinophilic esophagitis should promote optimal diagnosis and treatment of this elusive entity, both in children and in adults.
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Affiliation(s)
- S R Orenstein
- Division of Pediatric Gastroenterology, University of Pittsburgh School of Medicine, and Children's Hospital of Pittsburgh, Pennsylvania 15213, USA
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Mahmood T, Mousa H, Tan C. Using the medical audit to implement guidelines for induction of labour. Int J Gynaecol Obstet 2000. [DOI: 10.1016/s0020-7292(00)81602-1] [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: 11/15/2022]
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19
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Boelaert M, El Safi S, Mousa H, Githure J, Mbati P, Gurubacharya VL, Shrestha J, Jacquet D, De Muynck A, Le Ray D, Van der Stuyft P. Multi-centre evaluation of repeatability and reproducibility of the direct agglutination test for visceral leishmaniasis. Trop Med Int Health 1999; 4:31-7. [PMID: 10203171 DOI: 10.1046/j.1365-3156.1999.00348.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate the repeatability and reproducibility of the serological direct agglutination test (DAT) for visceral leishmaniasis (VL) with aqueous antigen in a multi-centre study in VL-endemic areas in Sudan, Kenya and Nepal. METHODS Repeatability within each centre and reproducibility between the centres' results and an external reference laboratory (Belgium) was assessed on 1596 triplicate plain blood samples collected on filter paper. RESULTS High kappa values (range 0.86-0.97) indicated excellent DAT repeatability within the centres. The means of the titre differences between the reference laboratory and the centres in Sudan, Kenya and Nepal (2.3, 2.4 and 1.1, respectively, all significantly different from 0) showed weak reproducibility across centres. 95% of the titre differences between the reference laboratory and the respective centres were accounted for by large intervals: 0.6-9 fold titre variation for Sudan, 0.7-8 fold for Kenya and 0.26-4 fold for Nepal. CONCLUSION High repeatability of DAT confirms its potential, but reproducibility problems remain an obstacle to its routine use in the field. Reproducibility was hindered by alteration of the antigen through temperature and shaking, especially in Kenya and Sudan, and by nonstandardization of the test reading. DAT handling procedures and antigen quality must be carefully standardized and monitored when introducing this test into routine practice.
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Affiliation(s)
- M Boelaert
- Department of Public Health, Prince Leopold Institute of Tropical Medicine, Antwerp, Belgium.
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Affiliation(s)
- H Mousa
- Department of Pediatric Gastroenterology and Transplantation Surgery, University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, PA 15213-2583, USA
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Mousa H, van de Ven T. Solutions of the shear-induced coalescence equations for polydisperse emulsion droplets using Monte Carlo and moments techniques. Colloids Surf A Physicochem Eng Asp 1995. [DOI: 10.1016/0927-7757(94)03034-w] [Citation(s) in RCA: 5] [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] [Indexed: 11/28/2022]
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Mousa H, van de Ven T. Stability of water-in-oil emulsions in simple shear flow 2. The efforts of additives on the orthokinetic coalescence efficiency. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0166-6622(91)80267-r] [Citation(s) in RCA: 13] [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: 11/30/2022]
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Mousa H, van de Ven T. Stability of water-in-oil emulsions in simple shear flow 1. Determination of the orthokinetic coalescence efficiency. ACTA ACUST UNITED AC 1991. [DOI: 10.1016/0166-6622(91)80266-q] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [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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Kamel K, Chandy R, Mousa H, Yunis D. Blood groups and types, hemoglobin variants, and G-6-PD deficiency among Abu Dhabians in the United Arab Emirates. Am J Phys Anthropol 1980; 52:481-4. [PMID: 7386610 DOI: 10.1002/ajpa.1330520404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Some erythrocyte genetic factors were studied in the indigenous population of Abu Dhabi, the capital of the United Arab Emirates, on the southeastern coast of the Arabian peninsula. Determinations carried out included blood groups and types ABO, MNS, Rh0, KkJsa, FyaFyb, P1, Lea, Vela, hemoglobin variants, and screening for G-6-PD deficiency. Prevalence of most blood groups and types harmonized with that among neighboring Arabs and some Arabs elsewhere. The MS and NS gene complexes were noticeably high. African admixture was expressed by the presence of Jsa and HbS and large numbers of Fy. G-6-PD deficiency was rather high.
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